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| -rw-r--r-- | src/helper/#jim.c# | 12823 |
1 files changed, 0 insertions, 12823 deletions
diff --git a/src/helper/#jim.c# b/src/helper/#jim.c# deleted file mode 100644 index c8583de8..00000000 --- a/src/helper/#jim.c# +++ /dev/null @@ -1,12823 +0,0 @@ -/* Jim - A small embeddable Tcl interpreter - * - * Copyright 2005 Salvatore Sanfilippo <antirez@invece.org> - * Copyright 2005 Clemens Hintze <c.hintze@gmx.net> - * Copyright 2005 patthoyts - Pat Thoyts <patthoyts@users.sf.net> - * Copyright 2008,2009 oharboe - yvind Harboe - oyvind.harboe@zylin.com - * Copyright 2008 Andrew Lunn <andrew@lunn.ch> - * Copyright 2008 Duane Ellis <openocd@duaneellis.com> - * Copyright 2008 Uwe Klein <uklein@klein-messgeraete.de> - * Copyright 2008 Steve Bennett <steveb@workware.net.au> - * Copyright 2009 Nico Coesel <ncoesel@dealogic.nl> - * Copyright 2009 Zachary T Welch zw@superlucidity.net - * Copyright 2009 David Brownell - * - * The FreeBSD license - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following - * disclaimer in the documentation and/or other materials - * provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * The views and conclusions contained in the software and documentation - * are those of the authors and should not be interpreted as representing - * official policies, either expressed or implied, of the Jim Tcl Project. - **/ -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#define __JIM_CORE__ -#define JIM_OPTIMIZATION /* comment to avoid optimizations and reduce size */ - -#ifdef __ECOS -#include <pkgconf/jimtcl.h> -#include <stdio.h> -#include <stdlib.h> - -typedef CYG_ADDRWORD intptr_t; - -#include <string.h> -#include <stdarg.h> -#include <ctype.h> -#include <limits.h> -#include <assert.h> -#include <errno.h> -#include <time.h> -#endif -#ifndef JIM_ANSIC -#define JIM_DYNLIB /* Dynamic library support for UNIX and WIN32 */ -#endif /* JIM_ANSIC */ - -#include <stdarg.h> -#include <limits.h> - -/* Include the platform dependent libraries for - * dynamic loading of libraries. */ -#ifdef JIM_DYNLIB -#if defined(_WIN32) || defined(WIN32) -#ifndef WIN32 -#define WIN32 1 -#endif -#ifndef STRICT -#define STRICT -#endif -#define WIN32_LEAN_AND_MEAN -#include <windows.h> -#if _MSC_VER >= 1000 -#pragma warning(disable:4146) -#endif /* _MSC_VER */ -#else -#include <dlfcn.h> -#endif /* WIN32 */ -#endif /* JIM_DYNLIB */ - -#ifdef __ECOS -#include <cyg/jimtcl/jim.h> -#else -#include "jim.h" -#endif - -#ifdef HAVE_BACKTRACE -#include <execinfo.h> -#endif - -/* ----------------------------------------------------------------------------- - * Global variables - * ---------------------------------------------------------------------------*/ - -/* A shared empty string for the objects string representation. - * Jim_InvalidateStringRep knows about it and don't try to free. */ -static char *JimEmptyStringRep = (char*) ""; - -/* ----------------------------------------------------------------------------- - * Required prototypes of not exported functions - * ---------------------------------------------------------------------------*/ -static void JimChangeCallFrameId(Jim_Interp *interp, Jim_CallFrame *cf); -static void JimFreeCallFrame(Jim_Interp *interp, Jim_CallFrame *cf, int flags); -static void JimRegisterCoreApi(Jim_Interp *interp); - -static Jim_HashTableType *getJimVariablesHashTableType(void); - -/* ----------------------------------------------------------------------------- - * Utility functions - * ---------------------------------------------------------------------------*/ - -static char * -jim_vasprintf(const char *fmt, va_list ap) -{ -#ifndef HAVE_VASPRINTF - /* yucky way */ -static char buf[2048]; - vsnprintf(buf, sizeof(buf), fmt, ap); - /* garentee termination */ - buf[sizeof(buf)-1] = 0; -#else - char *buf; - int result; - result = vasprintf(&buf, fmt, ap); - if (result < 0) exit(-1); -#endif - return buf; -} - -static void -jim_vasprintf_done(void *buf) -{ -#ifndef HAVE_VASPRINTF - (void)(buf); -#else - free(buf); -#endif -} - - -/* - * Convert a string to a jim_wide INTEGER. - * This function originates from BSD. - * - * Ignores `locale' stuff. Assumes that the upper and lower case - * alphabets and digits are each contiguous. - */ -#ifdef HAVE_LONG_LONG_INT -#define JimIsAscii(c) (((c) & ~0x7f) == 0) -static jim_wide JimStrtoll(const char *nptr, char **endptr, register int base) -{ - register const char *s; - register unsigned jim_wide acc; - register unsigned char c; - register unsigned jim_wide qbase, cutoff; - register int neg, any, cutlim; - - /* - * Skip white space and pick up leading +/- sign if any. - * If base is 0, allow 0x for hex and 0 for octal, else - * assume decimal; if base is already 16, allow 0x. - */ - s = nptr; - do { - c = *s++; - } while (isspace(c)); - if (c == '-') { - neg = 1; - c = *s++; - } else { - neg = 0; - if (c == '+') - c = *s++; - } - if ((base == 0 || base == 16) && - c == '0' && (*s == 'x' || *s == 'X')) { - c = s[1]; - s += 2; - base = 16; - } - if (base == 0) - base = c == '0' ? 8 : 10; - - /* - * Compute the cutoff value between legal numbers and illegal - * numbers. That is the largest legal value, divided by the - * base. An input number that is greater than this value, if - * followed by a legal input character, is too big. One that - * is equal to this value may be valid or not; the limit - * between valid and invalid numbers is then based on the last - * digit. For instance, if the range for quads is - * [-9223372036854775808..9223372036854775807] and the input base - * is 10, cutoff will be set to 922337203685477580 and cutlim to - * either 7 (neg == 0) or 8 (neg == 1), meaning that if we have - * accumulated a value > 922337203685477580, or equal but the - * next digit is > 7 (or 8), the number is too big, and we will - * return a range error. - * - * Set any if any `digits' consumed; make it negative to indicate - * overflow. - */ - qbase = (unsigned)base; - cutoff = neg ? (unsigned jim_wide)-(LLONG_MIN + LLONG_MAX) + LLONG_MAX - : LLONG_MAX; - cutlim = (int)(cutoff % qbase); - cutoff /= qbase; - for (acc = 0, any = 0;; c = *s++) { - if (!JimIsAscii(c)) - break; - if (isdigit(c)) - c -= '0'; - else if (isalpha(c)) - c -= isupper(c) ? 'A' - 10 : 'a' - 10; - else - break; - if (c >= base) - break; - if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim)) - any = -1; - else { - any = 1; - acc *= qbase; - acc += c; - } - } - if (any < 0) { - acc = neg ? LLONG_MIN : LLONG_MAX; - errno = ERANGE; - } else if (neg) - acc = -acc; - if (endptr != 0) - *endptr = (char *)(any ? s - 1 : nptr); - return (acc); -} -#endif - -/* Glob-style pattern matching. */ -static int JimStringMatch(const char *pattern, int patternLen, - const char *string, int stringLen, int nocase) -{ - while (patternLen) { - switch (pattern[0]) { - case '*': - while (pattern[1] == '*') { - pattern++; - patternLen--; - } - if (patternLen == 1) - return 1; /* match */ - while (stringLen) { - if (JimStringMatch(pattern + 1, patternLen-1, - string, stringLen, nocase)) - return 1; /* match */ - string++; - stringLen--; - } - return 0; /* no match */ - break; - case '?': - if (stringLen == 0) - return 0; /* no match */ - string++; - stringLen--; - break; - case '[': - { - int not, match; - - pattern++; - patternLen--; - not = pattern[0] == '^'; - if (not) { - pattern++; - patternLen--; - } - match = 0; - while (1) { - if (pattern[0] == '\\') { - pattern++; - patternLen--; - if (pattern[0] == string[0]) - match = 1; - } else if (pattern[0] == ']') { - break; - } else if (patternLen == 0) { - pattern--; - patternLen++; - break; - } else if (pattern[1] == '-' && patternLen >= 3) { - int start = pattern[0]; - int end = pattern[2]; - int c = string[0]; - if (start > end) { - int t = start; - start = end; - end = t; - } - if (nocase) { - start = tolower(start); - end = tolower(end); - c = tolower(c); - } - pattern += 2; - patternLen -= 2; - if (c >= start && c <= end) - match = 1; - } else { - if (!nocase) { - if (pattern[0] == string[0]) - match = 1; - } else { - if (tolower((int)pattern[0]) == tolower((int)string[0])) - match = 1; - } - } - pattern++; - patternLen--; - } - if (not) - match = !match; - if (!match) - return 0; /* no match */ - string++; - stringLen--; - break; - } - case '\\': - if (patternLen >= 2) { - pattern++; - patternLen--; - } - /* fall through */ - default: - if (!nocase) { - if (pattern[0] != string[0]) - return 0; /* no match */ - } else { - if (tolower((int)pattern[0]) != tolower((int)string[0])) - return 0; /* no match */ - } - string++; - stringLen--; - break; - } - pattern++; - patternLen--; - if (stringLen == 0) { - while (*pattern == '*') { - pattern++; - patternLen--; - } - break; - } - } - if (patternLen == 0 && stringLen == 0) - return 1; - return 0; -} - -int JimStringCompare(const char *s1, int l1, const char *s2, int l2, - int nocase) -{ - unsigned char *u1 = (unsigned char*) s1, *u2 = (unsigned char*) s2; - - if (nocase == 0) { - while (l1 && l2) { - if (*u1 != *u2) - return (int)*u1-*u2; - u1++; u2++; l1--; l2--; - } - if (!l1 && !l2) return 0; - return l1-l2; - } else { - while (l1 && l2) { - if (tolower((int)*u1) != tolower((int)*u2)) - return tolower((int)*u1)-tolower((int)*u2); - u1++; u2++; l1--; l2--; - } - if (!l1 && !l2) return 0; - return l1-l2; - } -} - -/* Search 's1' inside 's2', starting to search from char 'index' of 's2'. - * The index of the first occurrence of s1 in s2 is returned. - * If s1 is not found inside s2, -1 is returned. */ -int JimStringFirst(const char *s1, int l1, const char *s2, int l2, int index_t) -{ - int i; - - if (!l1 || !l2 || l1 > l2) return -1; - if (index_t < 0) index_t = 0; - s2 += index_t; - for (i = index_t; i <= l2-l1; i++) { - if (memcmp(s2, s1, l1) == 0) - return i; - s2++; - } - return -1; -} - -int Jim_WideToString(char *buf, jim_wide wideValue) -{ - const char *fmt = "%" JIM_WIDE_MODIFIER; - return sprintf(buf, fmt, wideValue); -} - -int Jim_StringToWide(const char *str, jim_wide *widePtr, int base) -{ - char *endptr; - -#ifdef HAVE_LONG_LONG_INT - *widePtr = JimStrtoll(str, &endptr, base); -#else - *widePtr = strtol(str, &endptr, base); -#endif - if ((str[0] == '\0') || (str == endptr)) - return JIM_ERR; - if (endptr[0] != '\0') { - while (*endptr) { - if (!isspace((int)*endptr)) - return JIM_ERR; - endptr++; - } - } - return JIM_OK; -} - -int Jim_StringToIndex(const char *str, int *intPtr) -{ - char *endptr; - - *intPtr = strtol(str, &endptr, 10); - if ((str[0] == '\0') || (str == endptr)) - return JIM_ERR; - if (endptr[0] != '\0') { - while (*endptr) { - if (!isspace((int)*endptr)) - return JIM_ERR; - endptr++; - } - } - return JIM_OK; -} - -/* The string representation of references has two features in order - * to make the GC faster. The first is that every reference starts - * with a non common character '~', in order to make the string matching - * fater. The second is that the reference string rep his 32 characters - * in length, this allows to avoid to check every object with a string - * repr < 32, and usually there are many of this objects. */ - -#define JIM_REFERENCE_SPACE (35 + JIM_REFERENCE_TAGLEN) - -static int JimFormatReference(char *buf, Jim_Reference *refPtr, jim_wide id) -{ - const char *fmt = "<reference.<%s>.%020" JIM_WIDE_MODIFIER ">"; - sprintf(buf, fmt, refPtr->tag, id); - return JIM_REFERENCE_SPACE; -} - -int Jim_DoubleToString(char *buf, double doubleValue) -{ - char *s; - int len; - - len = sprintf(buf, "%.17g", doubleValue); - s = buf; - while (*s) { - if (*s == '.') return len; - s++; - } - /* Add a final ".0" if it's a number. But not - * for NaN or InF */ - if (isdigit((int)buf[0]) - || ((buf[0] == '-' || buf[0] == '+') - && isdigit((int)buf[1]))) { - s[0] = '.'; - s[1] = '0'; - s[2] = '\0'; - return len + 2; - } - return len; -} - -int Jim_StringToDouble(const char *str, double *doublePtr) -{ - char *endptr; - - *doublePtr = strtod(str, &endptr); - if (str[0] == '\0' || endptr[0] != '\0' || (str == endptr)) - return JIM_ERR; - return JIM_OK; -} - -static jim_wide JimPowWide(jim_wide b, jim_wide e) -{ - jim_wide i, res = 1; - if ((b == 0 && e != 0) || (e < 0)) return 0; - for (i = 0; i < e; i++) {res *= b;} - return res; -} - -/* ----------------------------------------------------------------------------- - * Special functions - * ---------------------------------------------------------------------------*/ - -/* Note that 'interp' may be NULL if not available in the - * context of the panic. It's only useful to get the error - * file descriptor, it will default to stderr otherwise. */ -void Jim_Panic(Jim_Interp *interp, const char *fmt, ...) -{ - va_list ap; - - va_start(ap, fmt); - /* - * Send it here first.. Assuming STDIO still works - */ - fprintf(stderr, JIM_NL "JIM INTERPRETER PANIC: "); - vfprintf(stderr, fmt, ap); - fprintf(stderr, JIM_NL JIM_NL); - va_end(ap); - -#ifdef HAVE_BACKTRACE - { - void *array[40]; - int size, i; - char **strings; - - size = backtrace(array, 40); - strings = backtrace_symbols(array, size); - for (i = 0; i < size; i++) - fprintf(fp,"[backtrace] %s" JIM_NL, strings[i]); - fprintf(fp,"[backtrace] Include the above lines and the output" JIM_NL); - fprintf(fp,"[backtrace] of 'nm <executable>' in the bug report." JIM_NL); - } -#endif - - /* This may actually crash... we do it last */ - if (interp && interp->cookie_stderr) { - Jim_fprintf(interp, interp->cookie_stderr, JIM_NL "JIM INTERPRETER PANIC: "); - Jim_vfprintf(interp, interp->cookie_stderr, fmt, ap); - Jim_fprintf(interp, interp->cookie_stderr, JIM_NL JIM_NL); - } - abort(); -} - -/* ----------------------------------------------------------------------------- - * Memory allocation - * ---------------------------------------------------------------------------*/ - -/* Macro used for memory debugging. - * In order for they to work you have to rename Jim_Alloc into _Jim_Alloc - * and similary for Jim_Realloc and Jim_Free */ -#if 0 -#define Jim_Alloc(s) (printf("%s %d: Jim_Alloc(%d)\n",__FILE__,__LINE__,s),_Jim_Alloc(s)) -#define Jim_Free(p) (printf("%s %d: Jim_Free(%p)\n",__FILE__,__LINE__,p),_Jim_Free(p)) -#define Jim_Realloc(p,s) (printf("%s %d: Jim_Realloc(%p,%d)\n",__FILE__,__LINE__,p,s),_Jim_Realloc(p,s)) -#endif - -void *Jim_Alloc(int size) -{ - /* We allocate zero length arrayes, etc. to use a single orthogonal codepath */ - if (size == 0) - size = 1; - void *p = malloc(size); - if (p == NULL) - Jim_Panic(NULL,"malloc: Out of memory"); - return p; -} - -void Jim_Free(void *ptr) { - free(ptr); -} - -void *Jim_Realloc(void *ptr, int size) -{ - /* We allocate zero length arrayes, etc. to use a single orthogonal codepath */ - if (size == 0) - size = 1; - void *p = realloc(ptr, size); - if (p == NULL) - Jim_Panic(NULL,"realloc: Out of memory"); - return p; -} - -char *Jim_StrDup(const char *s) -{ - int l = strlen(s); - char *copy = Jim_Alloc(l + 1); - - memcpy(copy, s, l + 1); - return copy; -} - -char *Jim_StrDupLen(const char *s, int l) -{ - char *copy = Jim_Alloc(l + 1); - - memcpy(copy, s, l + 1); - copy[l] = 0; /* Just to be sure, original could be substring */ - return copy; -} - -/* ----------------------------------------------------------------------------- - * Time related functions - * ---------------------------------------------------------------------------*/ -/* Returns microseconds of CPU used since start. */ -static jim_wide JimClock(void) -{ -#if (defined WIN32) && !(defined JIM_ANSIC) - LARGE_INTEGER t, f; - QueryPerformanceFrequency(&f); - QueryPerformanceCounter(&t); - return (long)((t.QuadPart * 1000000) / f.QuadPart); -#else /* !WIN32 */ - clock_t clocks = clock(); - - return (long)(clocks*(1000000/CLOCKS_PER_SEC)); -#endif /* WIN32 */ -} - -/* ----------------------------------------------------------------------------- - * Hash Tables - * ---------------------------------------------------------------------------*/ - -/* -------------------------- private prototypes ---------------------------- */ -static int JimExpandHashTableIfNeeded(Jim_HashTable *ht); -static unsigned int JimHashTableNextPower(unsigned int size); -static int JimInsertHashEntry(Jim_HashTable *ht, const void *key); - -/* -------------------------- hash functions -------------------------------- */ - -/* Thomas Wang's 32 bit Mix Function */ -unsigned int Jim_IntHashFunction(unsigned int key) -{ - key += ~(key << 15); - key ^= (key >> 10); - key += (key << 3); - key ^= (key >> 6); - key += ~(key << 11); - key ^= (key >> 16); - return key; -} - -/* Identity hash function for integer keys */ -unsigned int Jim_IdentityHashFunction(unsigned int key) -{ - return key; -} - -/* Generic hash function (we are using to multiply by 9 and add the byte - * as Tcl) */ -unsigned int Jim_GenHashFunction(const unsigned char *buf, int len) -{ - unsigned int h = 0; - while (len--) - h += (h << 3)+*buf++; - return h; -} - -/* ----------------------------- API implementation ------------------------- */ -/* reset an hashtable already initialized with ht_init(). - * NOTE: This function should only called by ht_destroy(). */ -static void JimResetHashTable(Jim_HashTable *ht) -{ - ht->table = NULL; - ht->size = 0; - ht->sizemask = 0; - ht->used = 0; - ht->collisions = 0; -} - -/* Initialize the hash table */ -int Jim_InitHashTable(Jim_HashTable *ht, Jim_HashTableType *type, - void *privDataPtr) -{ - JimResetHashTable(ht); - ht->type = type; - ht->privdata = privDataPtr; - return JIM_OK; -} - -/* Resize the table to the minimal size that contains all the elements, - * but with the invariant of a USER/BUCKETS ration near to <= 1 */ -int Jim_ResizeHashTable(Jim_HashTable *ht) -{ - int minimal = ht->used; - - if (minimal < JIM_HT_INITIAL_SIZE) - minimal = JIM_HT_INITIAL_SIZE; - return Jim_ExpandHashTable(ht, minimal); -} - -/* Expand or create the hashtable */ -int Jim_ExpandHashTable(Jim_HashTable *ht, unsigned int size) -{ - Jim_HashTable n; /* the new hashtable */ - unsigned int realsize = JimHashTableNextPower(size), i; - - /* the size is invalid if it is smaller than the number of - * elements already inside the hashtable */ - if (ht->used >= size) - return JIM_ERR; - - Jim_InitHashTable(&n, ht->type, ht->privdata); - n.size = realsize; - n.sizemask = realsize-1; - n.table = Jim_Alloc(realsize*sizeof(Jim_HashEntry*)); - - /* Initialize all the pointers to NULL */ - memset(n.table, 0, realsize*sizeof(Jim_HashEntry*)); - - /* Copy all the elements from the old to the new table: - * note that if the old hash table is empty ht->size is zero, - * so Jim_ExpandHashTable just creates an hash table. */ - n.used = ht->used; - for (i = 0; i < ht->size && ht->used > 0; i++) { - Jim_HashEntry *he, *nextHe; - - if (ht->table[i] == NULL) continue; - - /* For each hash entry on this slot... */ - he = ht->table[i]; - while (he) { - unsigned int h; - - nextHe = he->next; - /* Get the new element index */ - h = Jim_HashKey(ht, he->key) & n.sizemask; - he->next = n.table[h]; - n.table[h] = he; - ht->used--; - /* Pass to the next element */ - he = nextHe; - } - } - assert(ht->used == 0); - Jim_Free(ht->table); - - /* Remap the new hashtable in the old */ - *ht = n; - return JIM_OK; -} - -/* Add an element to the target hash table */ -int Jim_AddHashEntry(Jim_HashTable *ht, const void *key, void *val) -{ - int index_t; - Jim_HashEntry *entry; - - /* Get the index of the new element, or -1 if - * the element already exists. */ - if ((index_t = JimInsertHashEntry(ht, key)) == -1) - return JIM_ERR; - - /* Allocates the memory and stores key */ - entry = Jim_Alloc(sizeof(*entry)); - entry->next = ht->table[index_t]; - ht->table[index_t] = entry; - - /* Set the hash entry fields. */ - Jim_SetHashKey(ht, entry, key); - Jim_SetHashVal(ht, entry, val); - ht->used++; - return JIM_OK; -} - -/* Add an element, discarding the old if the key already exists */ -int Jim_ReplaceHashEntry(Jim_HashTable *ht, const void *key, void *val) -{ - Jim_HashEntry *entry; - - /* Try to add the element. If the key - * does not exists Jim_AddHashEntry will suceed. */ - if (Jim_AddHashEntry(ht, key, val) == JIM_OK) - return JIM_OK; - /* It already exists, get the entry */ - entry = Jim_FindHashEntry(ht, key); - /* Free the old value and set the new one */ - Jim_FreeEntryVal(ht, entry); - Jim_SetHashVal(ht, entry, val); - return JIM_OK; -} - -/* Search and remove an element */ -int Jim_DeleteHashEntry(Jim_HashTable *ht, const void *key) -{ - unsigned int h; - Jim_HashEntry *he, *prevHe; - - if (ht->size == 0) - return JIM_ERR; - h = Jim_HashKey(ht, key) & ht->sizemask; - he = ht->table[h]; - - prevHe = NULL; - while (he) { - if (Jim_CompareHashKeys(ht, key, he->key)) { - /* Unlink the element from the list */ - if (prevHe) - prevHe->next = he->next; - else - ht->table[h] = he->next; - Jim_FreeEntryKey(ht, he); - Jim_FreeEntryVal(ht, he); - Jim_Free(he); - ht->used--; - return JIM_OK; - } - prevHe = he; - he = he->next; - } - return JIM_ERR; /* not found */ -} - -/* Destroy an entire hash table */ -int Jim_FreeHashTable(Jim_HashTable *ht) -{ - unsigned int i; - - /* Free all the elements */ - for (i = 0; i < ht->size && ht->used > 0; i++) { - Jim_HashEntry *he, *nextHe; - - if ((he = ht->table[i]) == NULL) continue; - while (he) { - nextHe = he->next; - Jim_FreeEntryKey(ht, he); - Jim_FreeEntryVal(ht, he); - Jim_Free(he); - ht->used--; - he = nextHe; - } - } - /* Free the table and the allocated cache structure */ - Jim_Free(ht->table); - /* Re-initialize the table */ - JimResetHashTable(ht); - return JIM_OK; /* never fails */ -} - -Jim_HashEntry *Jim_FindHashEntry(Jim_HashTable *ht, const void *key) -{ - Jim_HashEntry *he; - unsigned int h; - - if (ht->size == 0) return NULL; - h = Jim_HashKey(ht, key) & ht->sizemask; - he = ht->table[h]; - while (he) { - if (Jim_CompareHashKeys(ht, key, he->key)) - return he; - he = he->next; - } - return NULL; -} - -Jim_HashTableIterator *Jim_GetHashTableIterator(Jim_HashTable *ht) -{ - Jim_HashTableIterator *iter = Jim_Alloc(sizeof(*iter)); - - iter->ht = ht; - iter->index = -1; - iter->entry = NULL; - iter->nextEntry = NULL; - return iter; -} - -Jim_HashEntry *Jim_NextHashEntry(Jim_HashTableIterator *iter) -{ - while (1) { - if (iter->entry == NULL) { - iter->index++; - if (iter->index >= - (signed)iter->ht->size) break; - iter->entry = iter->ht->table[iter->index]; - } else { - iter->entry = iter->nextEntry; - } - if (iter->entry) { - /* We need to save the 'next' here, the iterator user - * may delete the entry we are returning. */ - iter->nextEntry = iter->entry->next; - return iter->entry; - } - } - return NULL; -} - -/* ------------------------- private functions ------------------------------ */ - -/* Expand the hash table if needed */ -static int JimExpandHashTableIfNeeded(Jim_HashTable *ht) -{ - /* If the hash table is empty expand it to the intial size, - * if the table is "full" dobule its size. */ - if (ht->size == 0) - return Jim_ExpandHashTable(ht, JIM_HT_INITIAL_SIZE); - if (ht->size == ht->used) - return Jim_ExpandHashTable(ht, ht->size*2); - return JIM_OK; -} - -/* Our hash table capability is a power of two */ -static unsigned int JimHashTableNextPower(unsigned int size) -{ - unsigned int i = JIM_HT_INITIAL_SIZE; - - if (size >= 2147483648U) - return 2147483648U; - while (1) { - if (i >= size) - return i; - i *= 2; - } -} - -/* Returns the index of a free slot that can be populated with - * an hash entry for the given 'key'. - * If the key already exists, -1 is returned. */ -static int JimInsertHashEntry(Jim_HashTable *ht, const void *key) -{ - unsigned int h; - Jim_HashEntry *he; - - /* Expand the hashtable if needed */ - if (JimExpandHashTableIfNeeded(ht) == JIM_ERR) - return -1; - /* Compute the key hash value */ - h = Jim_HashKey(ht, key) & ht->sizemask; - /* Search if this slot does not already contain the given key */ - he = ht->table[h]; - while (he) { - if (Jim_CompareHashKeys(ht, key, he->key)) - return -1; - he = he->next; - } - return h; -} - -/* ----------------------- StringCopy Hash Table Type ------------------------*/ - -static unsigned int JimStringCopyHTHashFunction(const void *key) -{ - return Jim_GenHashFunction(key, strlen(key)); -} - -static const void *JimStringCopyHTKeyDup(void *privdata, const void *key) -{ - int len = strlen(key); - char *copy = Jim_Alloc(len + 1); - JIM_NOTUSED(privdata); - - memcpy(copy, key, len); - copy[len] = '\0'; - return copy; -} - -static void *JimStringKeyValCopyHTValDup(void *privdata, const void *val) -{ - int len = strlen(val); - char *copy = Jim_Alloc(len + 1); - JIM_NOTUSED(privdata); - - memcpy(copy, val, len); - copy[len] = '\0'; - return copy; -} - -static int JimStringCopyHTKeyCompare(void *privdata, const void *key1, - const void *key2) -{ - JIM_NOTUSED(privdata); - - return strcmp(key1, key2) == 0; -} - -static void JimStringCopyHTKeyDestructor(void *privdata, const void *key) -{ - JIM_NOTUSED(privdata); - - Jim_Free((void*)key); /* ATTENTION: const cast */ -} - -static void JimStringKeyValCopyHTValDestructor(void *privdata, void *val) -{ - JIM_NOTUSED(privdata); - - Jim_Free((void*)val); /* ATTENTION: const cast */ -} - -static Jim_HashTableType JimStringCopyHashTableType = { - JimStringCopyHTHashFunction, /* hash function */ - JimStringCopyHTKeyDup, /* key dup */ - NULL, /* val dup */ - JimStringCopyHTKeyCompare, /* key compare */ - JimStringCopyHTKeyDestructor, /* key destructor */ - NULL /* val destructor */ -}; - -/* This is like StringCopy but does not auto-duplicate the key. - * It's used for intepreter's shared strings. */ -static Jim_HashTableType JimSharedStringsHashTableType = { - JimStringCopyHTHashFunction, /* hash function */ - NULL, /* key dup */ - NULL, /* val dup */ - JimStringCopyHTKeyCompare, /* key compare */ - JimStringCopyHTKeyDestructor, /* key destructor */ - NULL /* val destructor */ -}; - -/* This is like StringCopy but also automatically handle dynamic - * allocated C strings as values. */ -static Jim_HashTableType JimStringKeyValCopyHashTableType = { - JimStringCopyHTHashFunction, /* hash function */ - JimStringCopyHTKeyDup, /* key dup */ - JimStringKeyValCopyHTValDup, /* val dup */ - JimStringCopyHTKeyCompare, /* key compare */ - JimStringCopyHTKeyDestructor, /* key destructor */ - JimStringKeyValCopyHTValDestructor, /* val destructor */ -}; - -typedef struct AssocDataValue { - Jim_InterpDeleteProc *delProc; - void *data; -} AssocDataValue; - -static void JimAssocDataHashTableValueDestructor(void *privdata, void *data) -{ - AssocDataValue *assocPtr = (AssocDataValue *)data; - if (assocPtr->delProc != NULL) - assocPtr->delProc((Jim_Interp *)privdata, assocPtr->data); - Jim_Free(data); -} - -static Jim_HashTableType JimAssocDataHashTableType = { - JimStringCopyHTHashFunction, /* hash function */ - JimStringCopyHTKeyDup, /* key dup */ - NULL, /* val dup */ - JimStringCopyHTKeyCompare, /* key compare */ - JimStringCopyHTKeyDestructor, /* key destructor */ - JimAssocDataHashTableValueDestructor /* val destructor */ -}; - -/* ----------------------------------------------------------------------------- - * Stack - This is a simple generic stack implementation. It is used for - * example in the 'expr' expression compiler. - * ---------------------------------------------------------------------------*/ -void Jim_InitStack(Jim_Stack *stack) -{ - stack->len = 0; - stack->maxlen = 0; - stack->vector = NULL; -} - -void Jim_FreeStack(Jim_Stack *stack) -{ - Jim_Free(stack->vector); -} - -int Jim_StackLen(Jim_Stack *stack) -{ - return stack->len; -} - -void Jim_StackPush(Jim_Stack *stack, void *element) { - int neededLen = stack->len + 1; - if (neededLen > stack->maxlen) { - stack->maxlen = neededLen*2; - stack->vector = Jim_Realloc(stack->vector, sizeof(void*)*stack->maxlen); - } - stack->vector[stack->len] = element; - stack->len++; -} - -void *Jim_StackPop(Jim_Stack *stack) -{ - if (stack->len == 0) return NULL; - stack->len--; - return stack->vector[stack->len]; -} - -void *Jim_StackPeek(Jim_Stack *stack) -{ - if (stack->len == 0) return NULL; - return stack->vector[stack->len-1]; -} - -void Jim_FreeStackElements(Jim_Stack *stack, void (*freeFunc)(void *ptr)) -{ - int i; - - for (i = 0; i < stack->len; i++) - freeFunc(stack->vector[i]); -} - -/* ----------------------------------------------------------------------------- - * Parser - * ---------------------------------------------------------------------------*/ - -/* Token types */ -#define JIM_TT_NONE -1 /* No token returned */ -#define JIM_TT_STR 0 /* simple string */ -#define JIM_TT_ESC 1 /* string that needs escape chars conversion */ -#define JIM_TT_VAR 2 /* var substitution */ -#define JIM_TT_DICTSUGAR 3 /* Syntax sugar for [dict get], $foo(bar) */ -#define JIM_TT_CMD 4 /* command substitution */ -#define JIM_TT_SEP 5 /* word separator */ -#define JIM_TT_EOL 6 /* line separator */ - -/* Additional token types needed for expressions */ -#define JIM_TT_SUBEXPR_START 7 -#define JIM_TT_SUBEXPR_END 8 -#define JIM_TT_EXPR_NUMBER 9 -#define JIM_TT_EXPR_OPERATOR 10 - -/* Parser states */ -#define JIM_PS_DEF 0 /* Default state */ -#define JIM_PS_QUOTE 1 /* Inside "" */ - -/* Parser context structure. The same context is used both to parse - * Tcl scripts and lists. */ -struct JimParserCtx { - const char *prg; /* Program text */ - const char *p; /* Pointer to the point of the program we are parsing */ - int len; /* Left length of 'prg' */ - int linenr; /* Current line number */ - const char *tstart; - const char *tend; /* Returned token is at tstart-tend in 'prg'. */ - int tline; /* Line number of the returned token */ - int tt; /* Token type */ - int eof; /* Non zero if EOF condition is true. */ - int state; /* Parser state */ - int comment; /* Non zero if the next chars may be a comment. */ -}; - -#define JimParserEof(c) ((c)->eof) -#define JimParserTstart(c) ((c)->tstart) -#define JimParserTend(c) ((c)->tend) -#define JimParserTtype(c) ((c)->tt) -#define JimParserTline(c) ((c)->tline) - -static int JimParseScript(struct JimParserCtx *pc); -static int JimParseSep(struct JimParserCtx *pc); -static int JimParseEol(struct JimParserCtx *pc); -static int JimParseCmd(struct JimParserCtx *pc); -static int JimParseVar(struct JimParserCtx *pc); -static int JimParseBrace(struct JimParserCtx *pc); -static int JimParseStr(struct JimParserCtx *pc); -static int JimParseComment(struct JimParserCtx *pc); -static char *JimParserGetToken(struct JimParserCtx *pc, - int *lenPtr, int *typePtr, int *linePtr); - -/* Initialize a parser context. - * 'prg' is a pointer to the program text, linenr is the line - * number of the first line contained in the program. */ -void JimParserInit(struct JimParserCtx *pc, const char *prg, - int len, int linenr) -{ - pc->prg = prg; - pc->p = prg; - pc->len = len; - pc->tstart = NULL; - pc->tend = NULL; - pc->tline = 0; - pc->tt = JIM_TT_NONE; - pc->eof = 0; - pc->state = JIM_PS_DEF; - pc->linenr = linenr; - pc->comment = 1; -} - -int JimParseScript(struct JimParserCtx *pc) -{ - while (1) { /* the while is used to reiterate with continue if needed */ - if (!pc->len) { - pc->tstart = pc->p; - pc->tend = pc->p-1; - pc->tline = pc->linenr; - pc->tt = JIM_TT_EOL; - pc->eof = 1; - return JIM_OK; - } - switch (*(pc->p)) { - case '\\': - if (*(pc->p + 1) == '\n') - return JimParseSep(pc); - else { - pc->comment = 0; - return JimParseStr(pc); - } - break; - case ' ': - case '\t': - case '\r': - if (pc->state == JIM_PS_DEF) - return JimParseSep(pc); - else { - pc->comment = 0; - return JimParseStr(pc); - } - break; - case '\n': - case ';': - pc->comment = 1; - if (pc->state == JIM_PS_DEF) - return JimParseEol(pc); - else - return JimParseStr(pc); - break; - case '[': - pc->comment = 0; - return JimParseCmd(pc); - break; - case '$': - pc->comment = 0; - if (JimParseVar(pc) == JIM_ERR) { - pc->tstart = pc->tend = pc->p++; pc->len--; - pc->tline = pc->linenr; - pc->tt = JIM_TT_STR; - return JIM_OK; - } else - return JIM_OK; - break; - case '#': - if (pc->comment) { - JimParseComment(pc); - continue; - } else { - return JimParseStr(pc); - } - default: - pc->comment = 0; - return JimParseStr(pc); - break; - } - return JIM_OK; - } -} - -int JimParseSep(struct JimParserCtx *pc) -{ - pc->tstart = pc->p; - pc->tline = pc->linenr; - while (*pc->p == ' ' || *pc->p == '\t' || *pc->p == '\r' || - (*pc->p == '\\' && *(pc->p + 1) == '\n')) { - if (*pc->p == '\\') { - pc->p++; pc->len--; - pc->linenr++; - } - pc->p++; pc->len--; - } - pc->tend = pc->p-1; - pc->tt = JIM_TT_SEP; - return JIM_OK; -} - -int JimParseEol(struct JimParserCtx *pc) -{ - pc->tstart = pc->p; - pc->tline = pc->linenr; - while (*pc->p == ' ' || *pc->p == '\n' || - *pc->p == '\t' || *pc->p == '\r' || *pc->p == ';') { - if (*pc->p == '\n') - pc->linenr++; - pc->p++; pc->len--; - } - pc->tend = pc->p-1; - pc->tt = JIM_TT_EOL; - return JIM_OK; -} - -/* Todo. Don't stop if ']' appears inside {} or quoted. - * Also should handle the case of puts [string length "]"] */ -int JimParseCmd(struct JimParserCtx *pc) -{ - int level = 1; - int blevel = 0; - - pc->tstart = ++pc->p; pc->len--; - pc->tline = pc->linenr; - while (1) { - if (pc->len == 0) { - break; - } else if (*pc->p == '[' && blevel == 0) { - level++; - } else if (*pc->p == ']' && blevel == 0) { - level--; - if (!level) break; - } else if (*pc->p == '\\') { - pc->p++; pc->len--; - } else if (*pc->p == '{') { - blevel++; - } else if (*pc->p == '}') { - if (blevel != 0) - blevel--; - } else if (*pc->p == '\n') - pc->linenr++; - pc->p++; pc->len--; - } - pc->tend = pc->p-1; - pc->tt = JIM_TT_CMD; - if (*pc->p == ']') { - pc->p++; pc->len--; - } - return JIM_OK; -} - -int JimParseVar(struct JimParserCtx *pc) -{ - int brace = 0, stop = 0, ttype = JIM_TT_VAR; - - pc->tstart = ++pc->p; pc->len--; /* skip the $ */ - pc->tline = pc->linenr; - if (*pc->p == '{') { - pc->tstart = ++pc->p; pc->len--; - brace = 1; - } - if (brace) { - while (!stop) { - if (*pc->p == '}' || pc->len == 0) { - pc->tend = pc->p-1; - stop = 1; - if (pc->len == 0) - break; - } - else if (*pc->p == '\n') - pc->linenr++; - pc->p++; pc->len--; - } - } else { - /* Include leading colons */ - while (*pc->p == ':') { - pc->p++; - pc->len--; - } - while (!stop) { - if (!((*pc->p >= 'a' && *pc->p <= 'z') || - (*pc->p >= 'A' && *pc->p <= 'Z') || - (*pc->p >= '0' && *pc->p <= '9') || *pc->p == '_')) - stop = 1; - else { - pc->p++; pc->len--; - } - } - /* Parse [dict get] syntax sugar. */ - if (*pc->p == '(') { - while (*pc->p != ')' && pc->len) { - pc->p++; pc->len--; - if (*pc->p == '\\' && pc->len >= 2) { - pc->p += 2; pc->len -= 2; - } - } - if (*pc->p != '\0') { - pc->p++; pc->len--; - } - ttype = JIM_TT_DICTSUGAR; - } - pc->tend = pc->p-1; - } - /* Check if we parsed just the '$' character. - * That's not a variable so an error is returned - * to tell the state machine to consider this '$' just - * a string. */ - if (pc->tstart == pc->p) { - pc->p--; pc->len++; - return JIM_ERR; - } - pc->tt = ttype; - return JIM_OK; -} - -int JimParseBrace(struct JimParserCtx *pc) -{ - int level = 1; - - pc->tstart = ++pc->p; pc->len--; - pc->tline = pc->linenr; - while (1) { - if (*pc->p == '\\' && pc->len >= 2) { - pc->p++; pc->len--; - if (*pc->p == '\n') - pc->linenr++; - } else if (*pc->p == '{') { - level++; - } else if (pc->len == 0 || *pc->p == '}') { - level--; - if (pc->len == 0 || level == 0) { - pc->tend = pc->p-1; - if (pc->len != 0) { - pc->p++; pc->len--; - } - pc->tt = JIM_TT_STR; - return JIM_OK; - } - } else if (*pc->p == '\n') { - pc->linenr++; - } - pc->p++; pc->len--; - } - return JIM_OK; /* unreached */ -} - -int JimParseStr(struct JimParserCtx *pc) -{ - int newword = (pc->tt == JIM_TT_SEP || pc->tt == JIM_TT_EOL || - pc->tt == JIM_TT_NONE || pc->tt == JIM_TT_STR); - if (newword && *pc->p == '{') { - return JimParseBrace(pc); - } else if (newword && *pc->p == '"') { - pc->state = JIM_PS_QUOTE; - pc->p++; pc->len--; - } - pc->tstart = pc->p; - pc->tline = pc->linenr; - while (1) { - if (pc->len == 0) { - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - return JIM_OK; - } - switch (*pc->p) { - case '\\': - if (pc->state == JIM_PS_DEF && - *(pc->p + 1) == '\n') { - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - return JIM_OK; - } - if (pc->len >= 2) { - pc->p++; pc->len--; - } - break; - case '$': - case '[': - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - return JIM_OK; - case ' ': - case '\t': - case '\n': - case '\r': - case ';': - if (pc->state == JIM_PS_DEF) { - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - return JIM_OK; - } else if (*pc->p == '\n') { - pc->linenr++; - } - break; - case '"': - if (pc->state == JIM_PS_QUOTE) { - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - pc->p++; pc->len--; - pc->state = JIM_PS_DEF; - return JIM_OK; - } - break; - } - pc->p++; pc->len--; - } - return JIM_OK; /* unreached */ -} - -int JimParseComment(struct JimParserCtx *pc) -{ - while (*pc->p) { - if (*pc->p == '\n') { - pc->linenr++; - if (*(pc->p-1) != '\\') { - pc->p++; pc->len--; - return JIM_OK; - } - } - pc->p++; pc->len--; - } - return JIM_OK; -} - -/* xdigitval and odigitval are helper functions for JimParserGetToken() */ -static int xdigitval(int c) -{ - if (c >= '0' && c <= '9') return c-'0'; - if (c >= 'a' && c <= 'f') return c-'a'+10; - if (c >= 'A' && c <= 'F') return c-'A'+10; - return -1; -} - -static int odigitval(int c) -{ - if (c >= '0' && c <= '7') return c-'0'; - return -1; -} - -/* Perform Tcl escape substitution of 's', storing the result - * string into 'dest'. The escaped string is guaranteed to - * be the same length or shorted than the source string. - * Slen is the length of the string at 's', if it's -1 the string - * length will be calculated by the function. - * - * The function returns the length of the resulting string. */ -static int JimEscape(char *dest, const char *s, int slen) -{ - char *p = dest; - int i, len; - - if (slen == -1) - slen = strlen(s); - - for (i = 0; i < slen; i++) { - switch (s[i]) { - case '\\': - switch (s[i + 1]) { - case 'a': *p++ = 0x7; i++; break; - case 'b': *p++ = 0x8; i++; break; - case 'f': *p++ = 0xc; i++; break; - case 'n': *p++ = 0xa; i++; break; - case 'r': *p++ = 0xd; i++; break; - case 't': *p++ = 0x9; i++; break; - case 'v': *p++ = 0xb; i++; break; - case '\0': *p++ = '\\'; i++; break; - case '\n': *p++ = ' '; i++; break; - default: - if (s[i + 1] == 'x') { - int val = 0; - int c = xdigitval(s[i + 2]); - if (c == -1) { - *p++ = 'x'; - i++; - break; - } - val = c; - c = xdigitval(s[i + 3]); - if (c == -1) { - *p++ = val; - i += 2; - break; - } - val = (val*16) + c; - *p++ = val; - i += 3; - break; - } else if (s[i + 1] >= '0' && s[i + 1] <= '7') - { - int val = 0; - int c = odigitval(s[i + 1]); - val = c; - c = odigitval(s[i + 2]); - if (c == -1) { - *p++ = val; - i ++; - break; - } - val = (val*8) + c; - c = odigitval(s[i + 3]); - if (c == -1) { - *p++ = val; - i += 2; - break; - } - val = (val*8) + c; - *p++ = val; - i += 3; - } else { - *p++ = s[i + 1]; - i++; - } - break; - } - break; - default: - *p++ = s[i]; - break; - } - } - len = p-dest; - *p++ = '\0'; - return len; -} - -/* Returns a dynamically allocated copy of the current token in the - * parser context. The function perform conversion of escapes if - * the token is of type JIM_TT_ESC. - * - * Note that after the conversion, tokens that are grouped with - * braces in the source code, are always recognizable from the - * identical string obtained in a different way from the type. - * - * For exmple the string: - * - * {expand}$a - * - * will return as first token "expand", of type JIM_TT_STR - * - * While the string: - * - * expand$a - * - * will return as first token "expand", of type JIM_TT_ESC - */ -char *JimParserGetToken(struct JimParserCtx *pc, - int *lenPtr, int *typePtr, int *linePtr) -{ - const char *start, *end; - char *token; - int len; - - start = JimParserTstart(pc); - end = JimParserTend(pc); - if (start > end) { - if (lenPtr) *lenPtr = 0; - if (typePtr) *typePtr = JimParserTtype(pc); - if (linePtr) *linePtr = JimParserTline(pc); - token = Jim_Alloc(1); - token[0] = '\0'; - return token; - } - len = (end-start) + 1; - token = Jim_Alloc(len + 1); - if (JimParserTtype(pc) != JIM_TT_ESC) { - /* No escape conversion needed? Just copy it. */ - memcpy(token, start, len); - token[len] = '\0'; - } else { - /* Else convert the escape chars. */ - len = JimEscape(token, start, len); - } - if (lenPtr) *lenPtr = len; - if (typePtr) *typePtr = JimParserTtype(pc); - if (linePtr) *linePtr = JimParserTline(pc); - return token; -} - -/* The following functin is not really part of the parsing engine of Jim, - * but it somewhat related. Given an string and its length, it tries - * to guess if the script is complete or there are instead " " or { } - * open and not completed. This is useful for interactive shells - * implementation and for [info complete]. - * - * If 'stateCharPtr' != NULL, the function stores ' ' on complete script, - * '{' on scripts incomplete missing one or more '}' to be balanced. - * '"' on scripts incomplete missing a '"' char. - * - * If the script is complete, 1 is returned, otherwise 0. */ -int Jim_ScriptIsComplete(const char *s, int len, char *stateCharPtr) -{ - int level = 0; - int state = ' '; - - while (len) { - switch (*s) { - case '\\': - if (len > 1) - s++; - break; - case '"': - if (state == ' ') { - state = '"'; - } else if (state == '"') { - state = ' '; - } - break; - case '{': - if (state == '{') { - level++; - } else if (state == ' ') { - state = '{'; - level++; - } - break; - case '}': - if (state == '{') { - level--; - if (level == 0) - state = ' '; - } - break; - } - s++; - len--; - } - if (stateCharPtr) - *stateCharPtr = state; - return state == ' '; -} - -/* ----------------------------------------------------------------------------- - * Tcl Lists parsing - * ---------------------------------------------------------------------------*/ -static int JimParseListSep(struct JimParserCtx *pc); -static int JimParseListStr(struct JimParserCtx *pc); - -int JimParseList(struct JimParserCtx *pc) -{ - if (pc->len == 0) { - pc->tstart = pc->tend = pc->p; - pc->tline = pc->linenr; - pc->tt = JIM_TT_EOL; - pc->eof = 1; - return JIM_OK; - } - switch (*pc->p) { - case ' ': - case '\n': - case '\t': - case '\r': - if (pc->state == JIM_PS_DEF) - return JimParseListSep(pc); - else - return JimParseListStr(pc); - break; - default: - return JimParseListStr(pc); - break; - } - return JIM_OK; -} - -int JimParseListSep(struct JimParserCtx *pc) -{ - pc->tstart = pc->p; - pc->tline = pc->linenr; - while (*pc->p == ' ' || *pc->p == '\t' || *pc->p == '\r' || *pc->p == '\n') - { - pc->p++; pc->len--; - } - pc->tend = pc->p-1; - pc->tt = JIM_TT_SEP; - return JIM_OK; -} - -int JimParseListStr(struct JimParserCtx *pc) -{ - int newword = (pc->tt == JIM_TT_SEP || pc->tt == JIM_TT_EOL || - pc->tt == JIM_TT_NONE); - if (newword && *pc->p == '{') { - return JimParseBrace(pc); - } else if (newword && *pc->p == '"') { - pc->state = JIM_PS_QUOTE; - pc->p++; pc->len--; - } - pc->tstart = pc->p; - pc->tline = pc->linenr; - while (1) { - if (pc->len == 0) { - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - return JIM_OK; - } - switch (*pc->p) { - case '\\': - pc->p++; pc->len--; - break; - case ' ': - case '\t': - case '\n': - case '\r': - if (pc->state == JIM_PS_DEF) { - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - return JIM_OK; - } else if (*pc->p == '\n') { - pc->linenr++; - } - break; - case '"': - if (pc->state == JIM_PS_QUOTE) { - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - pc->p++; pc->len--; - pc->state = JIM_PS_DEF; - return JIM_OK; - } - break; - } - pc->p++; pc->len--; - } - return JIM_OK; /* unreached */ -} - -/* ----------------------------------------------------------------------------- - * Jim_Obj related functions - * ---------------------------------------------------------------------------*/ - -/* Return a new initialized object. */ -Jim_Obj *Jim_NewObj(Jim_Interp *interp) -{ - Jim_Obj *objPtr; - - /* -- Check if there are objects in the free list -- */ - if (interp->freeList != NULL) { - /* -- Unlink the object from the free list -- */ - objPtr = interp->freeList; - interp->freeList = objPtr->nextObjPtr; - } else { - /* -- No ready to use objects: allocate a new one -- */ - objPtr = Jim_Alloc(sizeof(*objPtr)); - } - - /* Object is returned with refCount of 0. Every - * kind of GC implemented should take care to don't try - * to scan objects with refCount == 0. */ - objPtr->refCount = 0; - /* All the other fields are left not initialized to save time. - * The caller will probably want set they to the right - * value anyway. */ - - /* -- Put the object into the live list -- */ - objPtr->prevObjPtr = NULL; - objPtr->nextObjPtr = interp->liveList; - if (interp->liveList) - interp->liveList->prevObjPtr = objPtr; - interp->liveList = objPtr; - - return objPtr; -} - -/* Free an object. Actually objects are never freed, but - * just moved to the free objects list, where they will be - * reused by Jim_NewObj(). */ -void Jim_FreeObj(Jim_Interp *interp, Jim_Obj *objPtr) -{ - /* Check if the object was already freed, panic. */ - if (objPtr->refCount != 0) { - Jim_Panic(interp,"!!!Object %p freed with bad refcount %d", objPtr, - objPtr->refCount); - } - /* Free the internal representation */ - Jim_FreeIntRep(interp, objPtr); - /* Free the string representation */ - if (objPtr->bytes != NULL) { - if (objPtr->bytes != JimEmptyStringRep) - Jim_Free(objPtr->bytes); - } - /* Unlink the object from the live objects list */ - if (objPtr->prevObjPtr) - objPtr->prevObjPtr->nextObjPtr = objPtr->nextObjPtr; - if (objPtr->nextObjPtr) - objPtr->nextObjPtr->prevObjPtr = objPtr->prevObjPtr; - if (interp->liveList == objPtr) - interp->liveList = objPtr->nextObjPtr; - /* Link the object into the free objects list */ - objPtr->prevObjPtr = NULL; - objPtr->nextObjPtr = interp->freeList; - if (interp->freeList) - interp->freeList->prevObjPtr = objPtr; - interp->freeList = objPtr; - objPtr->refCount = -1; -} - -/* Invalidate the string representation of an object. */ -void Jim_InvalidateStringRep(Jim_Obj *objPtr) -{ - if (objPtr->bytes != NULL) { - if (objPtr->bytes != JimEmptyStringRep) - Jim_Free(objPtr->bytes); - } - objPtr->bytes = NULL; -} - -#define Jim_SetStringRep(o, b, l) \ - do { (o)->bytes = b; (o)->length = l; } while (0) - -/* Set the initial string representation for an object. - * Does not try to free an old one. */ -void Jim_InitStringRep(Jim_Obj *objPtr, const char *bytes, int length) -{ - if (length == 0) { - objPtr->bytes = JimEmptyStringRep; - objPtr->length = 0; - } else { - objPtr->bytes = Jim_Alloc(length + 1); - objPtr->length = length; - memcpy(objPtr->bytes, bytes, length); - objPtr->bytes[length] = '\0'; - } -} - -/* Duplicate an object. The returned object has refcount = 0. */ -Jim_Obj *Jim_DuplicateObj(Jim_Interp *interp, Jim_Obj *objPtr) -{ - Jim_Obj *dupPtr; - - dupPtr = Jim_NewObj(interp); - if (objPtr->bytes == NULL) { - /* Object does not have a valid string representation. */ - dupPtr->bytes = NULL; - } else { - Jim_InitStringRep(dupPtr, objPtr->bytes, objPtr->length); - } - if (objPtr->typePtr != NULL) { - if (objPtr->typePtr->dupIntRepProc == NULL) { - dupPtr->internalRep = objPtr->internalRep; - } else { - objPtr->typePtr->dupIntRepProc(interp, objPtr, dupPtr); - } - dupPtr->typePtr = objPtr->typePtr; - } else { - dupPtr->typePtr = NULL; - } - return dupPtr; -} - -/* Return the string representation for objPtr. If the object - * string representation is invalid, calls the method to create - * a new one starting from the internal representation of the object. */ -const char *Jim_GetString(Jim_Obj *objPtr, int *lenPtr) -{ - if (objPtr->bytes == NULL) { - /* Invalid string repr. Generate it. */ - if (objPtr->typePtr->updateStringProc == NULL) { - Jim_Panic(NULL,"UpdataStringProc called against '%s' type.", - objPtr->typePtr->name); - } - objPtr->typePtr->updateStringProc(objPtr); - } - if (lenPtr) - *lenPtr = objPtr->length; - return objPtr->bytes; -} - -/* Just returns the length of the object's string rep */ -int Jim_Length(Jim_Obj *objPtr) -{ - int len; - - Jim_GetString(objPtr, &len); - return len; -} - -/* ----------------------------------------------------------------------------- - * String Object - * ---------------------------------------------------------------------------*/ -static void DupStringInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr); -static int SetStringFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr); - -static Jim_ObjType stringObjType = { - "string", - NULL, - DupStringInternalRep, - NULL, - JIM_TYPE_REFERENCES, -}; - -void DupStringInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr) -{ - JIM_NOTUSED(interp); - - /* This is a bit subtle: the only caller of this function - * should be Jim_DuplicateObj(), that will copy the - * string representaion. After the copy, the duplicated - * object will not have more room in teh buffer than - * srcPtr->length bytes. So we just set it to length. */ - dupPtr->internalRep.strValue.maxLength = srcPtr->length; -} - -int SetStringFromAny(Jim_Interp *interp, Jim_Obj *objPtr) -{ - /* Get a fresh string representation. */ - (void) Jim_GetString(objPtr, NULL); - /* Free any other internal representation. */ - Jim_FreeIntRep(interp, objPtr); - /* Set it as string, i.e. just set the maxLength field. */ - objPtr->typePtr = &stringObjType; - objPtr->internalRep.strValue.maxLength = objPtr->length; - return JIM_OK; -} - -Jim_Obj *Jim_NewStringObj(Jim_Interp *interp, const char *s, int len) -{ - Jim_Obj *objPtr = Jim_NewObj(interp); - - if (len == -1) - len = strlen(s); - /* Alloc/Set the string rep. */ - if (len == 0) { - objPtr->bytes = JimEmptyStringRep; - objPtr->length = 0; - } else { - objPtr->bytes = Jim_Alloc(len + 1); - objPtr->length = len; - memcpy(objPtr->bytes, s, len); - objPtr->bytes[len] = '\0'; - } - - /* No typePtr field for the vanilla string object. */ - objPtr->typePtr = NULL; - return objPtr; -} - -/* This version does not try to duplicate the 's' pointer, but - * use it directly. */ -Jim_Obj *Jim_NewStringObjNoAlloc(Jim_Interp *interp, char *s, int len) -{ - Jim_Obj *objPtr = Jim_NewObj(interp); - - if (len == -1) - len = strlen(s); - Jim_SetStringRep(objPtr, s, len); - objPtr->typePtr = NULL; - return objPtr; -} - -/* Low-level string append. Use it only against objects - * of type "string". */ -void StringAppendString(Jim_Obj *objPtr, const char *str, int len) -{ - int needlen; - - if (len == -1) - len = strlen(str); - needlen = objPtr->length + len; - if (objPtr->internalRep.strValue.maxLength < needlen || - objPtr->internalRep.strValue.maxLength == 0) { - if (objPtr->bytes == JimEmptyStringRep) { - objPtr->bytes = Jim_Alloc((needlen*2) + 1); - } else { - objPtr->bytes = Jim_Realloc(objPtr->bytes, (needlen*2) + 1); - } - objPtr->internalRep.strValue.maxLength = needlen*2; - } - memcpy(objPtr->bytes + objPtr->length, str, len); - objPtr->bytes[objPtr->length + len] = '\0'; - objPtr->length += len; -} - -/* Low-level wrapper to append an object. */ -void StringAppendObj(Jim_Obj *objPtr, Jim_Obj *appendObjPtr) -{ - int len; - const char *str; - - str = Jim_GetString(appendObjPtr, &len); - StringAppendString(objPtr, str, len); -} - -/* Higher level API to append strings to objects. */ -void Jim_AppendString(Jim_Interp *interp, Jim_Obj *objPtr, const char *str, - int len) -{ - if (Jim_IsShared(objPtr)) - Jim_Panic(interp,"Jim_AppendString called with shared object"); - if (objPtr->typePtr != &stringObjType) - SetStringFromAny(interp, objPtr); - StringAppendString(objPtr, str, len); -} - -void Jim_AppendString_sprintf(Jim_Interp *interp, Jim_Obj *objPtr, const char *fmt, ...) -{ - char *buf; - va_list ap; - - va_start(ap, fmt); - buf = jim_vasprintf(fmt, ap); - va_end(ap); - - if (buf) { - Jim_AppendString(interp, objPtr, buf, -1); - jim_vasprintf_done(buf); - } -} - - -void Jim_AppendObj(Jim_Interp *interp, Jim_Obj *objPtr, - Jim_Obj *appendObjPtr) -{ - int len; - const char *str; - - str = Jim_GetString(appendObjPtr, &len); - Jim_AppendString(interp, objPtr, str, len); -} - -void Jim_AppendStrings(Jim_Interp *interp, Jim_Obj *objPtr, ...) -{ - va_list ap; - - if (objPtr->typePtr != &stringObjType) - SetStringFromAny(interp, objPtr); - va_start(ap, objPtr); - while (1) { - char *s = va_arg(ap, char*); - - if (s == NULL) break; - Jim_AppendString(interp, objPtr, s, -1); - } - va_end(ap); -} - -int Jim_StringEqObj(Jim_Obj *aObjPtr, Jim_Obj *bObjPtr, int nocase) -{ - const char *aStr, *bStr; - int aLen, bLen, i; - - if (aObjPtr == bObjPtr) return 1; - aStr = Jim_GetString(aObjPtr, &aLen); - bStr = Jim_GetString(bObjPtr, &bLen); - if (aLen != bLen) return 0; - if (nocase == 0) - return memcmp(aStr, bStr, aLen) == 0; - for (i = 0; i < aLen; i++) { - if (tolower((int)aStr[i]) != tolower((int)bStr[i])) - return 0; - } - return 1; -} - -int Jim_StringMatchObj(Jim_Obj *patternObjPtr, Jim_Obj *objPtr, - int nocase) -{ - const char *pattern, *string; - int patternLen, stringLen; - - pattern = Jim_GetString(patternObjPtr, &patternLen); - string = Jim_GetString(objPtr, &stringLen); - return JimStringMatch(pattern, patternLen, string, stringLen, nocase); -} - -int Jim_StringCompareObj(Jim_Obj *firstObjPtr, - Jim_Obj *secondObjPtr, int nocase) -{ - const char *s1, *s2; - int l1, l2; - - s1 = Jim_GetString(firstObjPtr, &l1); - s2 = Jim_GetString(secondObjPtr, &l2); - return JimStringCompare(s1, l1, s2, l2, nocase); -} - -/* Convert a range, as returned by Jim_GetRange(), into - * an absolute index into an object of the specified length. - * This function may return negative values, or values - * bigger or equal to the length of the list if the index - * is out of range. */ -static int JimRelToAbsIndex(int len, int index_t) -{ - if (index_t < 0) - return len + index_t; - return index_t; -} - -/* Convert a pair of index as normalize by JimRelToAbsIndex(), - * into a range stored in *firstPtr, *lastPtr, *rangeLenPtr, suitable - * for implementation of commands like [string range] and [lrange]. - * - * The resulting range is guaranteed to address valid elements of - * the structure. */ -static void JimRelToAbsRange(int len, int first, int last, - int *firstPtr, int *lastPtr, int *rangeLenPtr) -{ - int rangeLen; - - if (first > last) { - rangeLen = 0; - } else { - rangeLen = last-first + 1; - if (rangeLen) { - if (first < 0) { - rangeLen += first; - first = 0; - } - if (last >= len) { - rangeLen -= (last-(len-1)); - last = len-1; - } - } - } - if (rangeLen < 0) rangeLen = 0; - - *firstPtr = first; - *lastPtr = last; - *rangeLenPtr = rangeLen; -} - -Jim_Obj *Jim_StringRangeObj(Jim_Interp *interp, - Jim_Obj *strObjPtr, Jim_Obj *firstObjPtr, Jim_Obj *lastObjPtr) -{ - int first, last; - const char *str; - int len, rangeLen; - - if (Jim_GetIndex(interp, firstObjPtr, &first) != JIM_OK || - Jim_GetIndex(interp, lastObjPtr, &last) != JIM_OK) - return NULL; - str = Jim_GetString(strObjPtr, &len); - first = JimRelToAbsIndex(len, first); - last = JimRelToAbsIndex(len, last); - JimRelToAbsRange(len, first, last, &first, &last, &rangeLen); - return Jim_NewStringObj(interp, str + first, rangeLen); -} - -static Jim_Obj *JimStringToLower(Jim_Interp *interp, Jim_Obj *strObjPtr) -{ - char *buf; - int i; - if (strObjPtr->typePtr != &stringObjType) { - SetStringFromAny(interp, strObjPtr); - } - - buf = Jim_Alloc(strObjPtr->length + 1); - - memcpy(buf, strObjPtr->bytes, strObjPtr->length + 1); - for (i = 0; i < strObjPtr->length; i++) - buf[i] = tolower((unsigned)buf[i]); - return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length); -} - -static Jim_Obj *JimStringToUpper(Jim_Interp *interp, Jim_Obj *strObjPtr) -{ - char *buf; - int i; - if (strObjPtr->typePtr != &stringObjType) { - SetStringFromAny(interp, strObjPtr); - } - - buf = Jim_Alloc(strObjPtr->length + 1); - - memcpy(buf, strObjPtr->bytes, strObjPtr->length + 1); - for (i = 0; i < strObjPtr->length; i++) - buf[i] = toupper((unsigned)buf[i]); - return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length); -} - -/* This is the core of the [format] command. - * TODO: Lots of things work - via a hack - * However, no format item can be >= JIM_MAX_FMT - */ -#define JIM_MAX_FMT 2048 -static Jim_Obj *Jim_FormatString_Inner(Jim_Interp *interp, Jim_Obj *fmtObjPtr, - int objc, Jim_Obj *const *objv, char *sprintf_buf) -{ - const char *fmt, *_fmt; - int fmtLen; - Jim_Obj *resObjPtr; - - - fmt = Jim_GetString(fmtObjPtr, &fmtLen); - _fmt = fmt; - resObjPtr = Jim_NewStringObj(interp, "", 0); - while (fmtLen) { - const char *p = fmt; - char spec[2], c; - jim_wide wideValue; - double doubleValue; - /* we cheat and use Sprintf()! */ - char fmt_str[100]; - char *cp; - int width; - int ljust; - int zpad; - int spad; - int altfm; - int forceplus; - int prec; - int inprec; - int haveprec; - int accum; - - while (*fmt != '%' && fmtLen) { - fmt++; fmtLen--; - } - Jim_AppendString(interp, resObjPtr, p, fmt-p); - if (fmtLen == 0) - break; - fmt++; fmtLen--; /* skip '%' */ - zpad = 0; - spad = 0; - width = -1; - ljust = 0; - altfm = 0; - forceplus = 0; - inprec = 0; - haveprec = 0; - prec = -1; /* not found yet */ - next_fmt: - if (fmtLen <= 0) { - break; - } - switch (*fmt) { - /* terminals */ - case 'b': /* binary - not all printfs() do this */ - case 's': /* string */ - case 'i': /* integer */ - case 'd': /* decimal */ - case 'x': /* hex */ - case 'X': /* CAP hex */ - case 'c': /* char */ - case 'o': /* octal */ - case 'u': /* unsigned */ - case 'f': /* float */ - break; - - /* non-terminals */ - case '0': /* zero pad */ - zpad = 1; - fmt++; fmtLen--; - goto next_fmt; - break; - case '+': - forceplus = 1; - fmt++; fmtLen--; - goto next_fmt; - break; - case ' ': /* sign space */ - spad = 1; - fmt++; fmtLen--; - goto next_fmt; - break; - case '-': - ljust = 1; - fmt++; fmtLen--; - goto next_fmt; - break; - case '#': - altfm = 1; - fmt++; fmtLen--; - goto next_fmt; - - case '.': - inprec = 1; - fmt++; fmtLen--; - goto next_fmt; - break; - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - accum = 0; - while (isdigit((unsigned)*fmt) && (fmtLen > 0)) { - accum = (accum * 10) + (*fmt - '0'); - fmt++; fmtLen--; - } - if (inprec) { - haveprec = 1; - prec = accum; - } else { - width = accum; - } - goto next_fmt; - case '*': - /* suck up the next item as an integer */ - fmt++; fmtLen--; - objc--; - if (objc <= 0) { - goto not_enough_args; - } - if (Jim_GetWide(interp,objv[0],&wideValue)== JIM_ERR) { - Jim_FreeNewObj(interp, resObjPtr); - return NULL; - } - if (inprec) { - haveprec = 1; - prec = wideValue; - if (prec < 0) { - /* man 3 printf says */ - /* if prec is negative, it is zero */ - prec = 0; - } - } else { - width = wideValue; - if (width < 0) { - ljust = 1; - width = -width; - } - } - objv++; - goto next_fmt; - break; - } - - - if (*fmt != '%') { - if (objc == 0) { - not_enough_args: - Jim_FreeNewObj(interp, resObjPtr); - Jim_SetResultString(interp, - "not enough arguments for all format specifiers", -1); - return NULL; - } else { - objc--; - } - } - - /* - * Create the formatter - * cause we cheat and use sprintf() - */ - cp = fmt_str; - *cp++ = '%'; - if (altfm) { - *cp++ = '#'; - } - if (forceplus) { - *cp++ = '+'; - } else if (spad) { - /* PLUS overrides */ - *cp++ = ' '; - } - if (ljust) { - *cp++ = '-'; - } - if (zpad) { - *cp++ = '0'; - } - if (width > 0) { - sprintf(cp, "%d", width); - /* skip ahead */ - cp = strchr(cp,0); - } - /* did we find a period? */ - if (inprec) { - /* then add it */ - *cp++ = '.'; - /* did something occur after the period? */ - if (haveprec) { - sprintf(cp, "%d", prec); - } - cp = strchr(cp,0); - } - *cp = 0; - - /* here we do the work */ - /* actually - we make sprintf() do it for us */ - switch (*fmt) { - case 's': - *cp++ = 's'; - *cp = 0; - /* BUG: we do not handled embeded NULLs */ - snprintf(sprintf_buf, JIM_MAX_FMT, fmt_str, Jim_GetString(objv[0], NULL)); - break; - case 'c': - *cp++ = 'c'; - *cp = 0; - if (Jim_GetWide(interp, objv[0], &wideValue) == JIM_ERR) { - Jim_FreeNewObj(interp, resObjPtr); - return NULL; - } - c = (char) wideValue; - snprintf(sprintf_buf, JIM_MAX_FMT, fmt_str, c); - break; - case 'f': - case 'F': - case 'g': - case 'G': - case 'e': - case 'E': - *cp++ = *fmt; - *cp = 0; - if (Jim_GetDouble(interp, objv[0], &doubleValue) == JIM_ERR) { - Jim_FreeNewObj(interp, resObjPtr); - return NULL; - } - snprintf(sprintf_buf, JIM_MAX_FMT, fmt_str, doubleValue); - break; - case 'b': - case 'd': - case 'o': - case 'i': - case 'u': - case 'x': - case 'X': - /* jim widevaluse are 64bit */ - if (sizeof(jim_wide) == sizeof(long long)) { - *cp++ = 'l'; - *cp++ = 'l'; - } else { - *cp++ = 'l'; - } - *cp++ = *fmt; - *cp = 0; - if (Jim_GetWide(interp, objv[0], &wideValue) == JIM_ERR) { - Jim_FreeNewObj(interp, resObjPtr); - return NULL; - } - snprintf(sprintf_buf, JIM_MAX_FMT, fmt_str, wideValue); - break; - case '%': - sprintf_buf[0] = '%'; - sprintf_buf[1] = 0; - objv--; /* undo the objv++ below */ - break; - default: - spec[0] = *fmt; spec[1] = '\0'; - Jim_FreeNewObj(interp, resObjPtr); - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad field specifier \"", spec, "\"", NULL); - return NULL; - } - /* force terminate */ -#if 0 - printf("FMT was: %s\n", fmt_str); - printf("RES was: |%s|\n", sprintf_buf); -#endif - - sprintf_buf[ JIM_MAX_FMT - 1] = 0; - Jim_AppendString(interp, resObjPtr, sprintf_buf, strlen(sprintf_buf)); - /* next obj */ - objv++; - fmt++; - fmtLen--; - } - return resObjPtr; -} - -Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr, - int objc, Jim_Obj *const *objv) -{ - char *sprintf_buf = malloc(JIM_MAX_FMT); - Jim_Obj *t = Jim_FormatString_Inner(interp, fmtObjPtr, objc, objv, sprintf_buf); - free(sprintf_buf); - return t; -} - -/* ----------------------------------------------------------------------------- - * Compared String Object - * ---------------------------------------------------------------------------*/ - -/* This is strange object that allows to compare a C literal string - * with a Jim object in very short time if the same comparison is done - * multiple times. For example every time the [if] command is executed, - * Jim has to check if a given argument is "else". This comparions if - * the code has no errors are true most of the times, so we can cache - * inside the object the pointer of the string of the last matching - * comparison. Because most C compilers perform literal sharing, - * so that: char *x = "foo", char *y = "foo", will lead to x == y, - * this works pretty well even if comparisons are at different places - * inside the C code. */ - -static Jim_ObjType comparedStringObjType = { - "compared-string", - NULL, - NULL, - NULL, - JIM_TYPE_REFERENCES, -}; - -/* The only way this object is exposed to the API is via the following - * function. Returns true if the string and the object string repr. - * are the same, otherwise zero is returned. - * - * Note: this isn't binary safe, but it hardly needs to be.*/ -int Jim_CompareStringImmediate(Jim_Interp *interp, Jim_Obj *objPtr, - const char *str) -{ - if (objPtr->typePtr == &comparedStringObjType && - objPtr->internalRep.ptr == str) - return 1; - else { - const char *objStr = Jim_GetString(objPtr, NULL); - if (strcmp(str, objStr) != 0) return 0; - if (objPtr->typePtr != &comparedStringObjType) { - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &comparedStringObjType; - } - objPtr->internalRep.ptr = (char*)str; /*ATTENTION: const cast */ - return 1; - } -} - -int qsortCompareStringPointers(const void *a, const void *b) -{ - char * const *sa = (char * const *)a; - char * const *sb = (char * const *)b; - return strcmp(*sa, *sb); -} - -int Jim_GetEnum(Jim_Interp *interp, Jim_Obj *objPtr, - const char * const *tablePtr, int *indexPtr, const char *name, int flags) -{ - const char * const *entryPtr = NULL; - char **tablePtrSorted; - int i, count = 0; - - *indexPtr = -1; - for (entryPtr = tablePtr, i = 0; *entryPtr != NULL; entryPtr++, i++) { - if (Jim_CompareStringImmediate(interp, objPtr, *entryPtr)) { - *indexPtr = i; - return JIM_OK; - } - count++; /* If nothing matches, this will reach the len of tablePtr */ - } - if (flags & JIM_ERRMSG) { - if (name == NULL) - name = "option"; - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad ", name, " \"", Jim_GetString(objPtr, NULL), "\": must be one of ", - NULL); - tablePtrSorted = Jim_Alloc(sizeof(char*)*count); - memcpy(tablePtrSorted, tablePtr, sizeof(char*)*count); - qsort(tablePtrSorted, count, sizeof(char*), qsortCompareStringPointers); - for (i = 0; i < count; i++) { - if (i + 1 == count && count > 1) - Jim_AppendString(interp, Jim_GetResult(interp), "or ", -1); - Jim_AppendString(interp, Jim_GetResult(interp), - tablePtrSorted[i], -1); - if (i + 1 != count) - Jim_AppendString(interp, Jim_GetResult(interp), ", ", -1); - } - Jim_Free(tablePtrSorted); - } - return JIM_ERR; -} - -int Jim_GetNvp(Jim_Interp *interp, - Jim_Obj *objPtr, - const Jim_Nvp *nvp_table, - const Jim_Nvp ** result) -{ - Jim_Nvp *n; - int e; - - e = Jim_Nvp_name2value_obj(interp, nvp_table, objPtr, &n); - if (e == JIM_ERR) { - return e; - } - - /* Success? found? */ - if (n->name) { - /* remove const */ - *result = (Jim_Nvp *)n; - return JIM_OK; - } else { - return JIM_ERR; - } -} - -/* ----------------------------------------------------------------------------- - * Source Object - * - * This object is just a string from the language point of view, but - * in the internal representation it contains the filename and line number - * where this given token was read. This information is used by - * Jim_EvalObj() if the object passed happens to be of type "source". - * - * This allows to propagate the information about line numbers and file - * names and give error messages with absolute line numbers. - * - * Note that this object uses shared strings for filenames, and the - * pointer to the filename together with the line number is taken into - * the space for the "inline" internal represenation of the Jim_Object, - * so there is almost memory zero-overhead. - * - * Also the object will be converted to something else if the given - * token it represents in the source file is not something to be - * evaluated (not a script), and will be specialized in some other way, - * so the time overhead is alzo null. - * ---------------------------------------------------------------------------*/ - -static void FreeSourceInternalRep(Jim_Interp *interp, Jim_Obj *objPtr); -static void DupSourceInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr); - -static Jim_ObjType sourceObjType = { - "source", - FreeSourceInternalRep, - DupSourceInternalRep, - NULL, - JIM_TYPE_REFERENCES, -}; - -void FreeSourceInternalRep(Jim_Interp *interp, Jim_Obj *objPtr) -{ - Jim_ReleaseSharedString(interp, - objPtr->internalRep.sourceValue.fileName); -} - -void DupSourceInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr) -{ - dupPtr->internalRep.sourceValue.fileName = - Jim_GetSharedString(interp, - srcPtr->internalRep.sourceValue.fileName); - dupPtr->internalRep.sourceValue.lineNumber = - dupPtr->internalRep.sourceValue.lineNumber; - dupPtr->typePtr = &sourceObjType; -} - -static void JimSetSourceInfo(Jim_Interp *interp, Jim_Obj *objPtr, - const char *fileName, int lineNumber) -{ - if (Jim_IsShared(objPtr)) - Jim_Panic(interp,"JimSetSourceInfo called with shared object"); - if (objPtr->typePtr != NULL) - Jim_Panic(interp,"JimSetSourceInfo called with typePtr != NULL"); - objPtr->internalRep.sourceValue.fileName = - Jim_GetSharedString(interp, fileName); - objPtr->internalRep.sourceValue.lineNumber = lineNumber; - objPtr->typePtr = &sourceObjType; -} - -/* ----------------------------------------------------------------------------- - * Script Object - * ---------------------------------------------------------------------------*/ - -#define JIM_CMDSTRUCT_EXPAND -1 - -static void FreeScriptInternalRep(Jim_Interp *interp, Jim_Obj *objPtr); -static void DupScriptInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr); -static int SetScriptFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr); - -static Jim_ObjType scriptObjType = { - "script", - FreeScriptInternalRep, - DupScriptInternalRep, - NULL, - JIM_TYPE_REFERENCES, -}; - -/* The ScriptToken structure represents every token into a scriptObj. - * Every token contains an associated Jim_Obj that can be specialized - * by commands operating on it. */ -typedef struct ScriptToken { - int type; - Jim_Obj *objPtr; - int linenr; -} ScriptToken; - -/* This is the script object internal representation. An array of - * ScriptToken structures, with an associated command structure array. - * The command structure is a pre-computed representation of the - * command length and arguments structure as a simple liner array - * of integers. - * - * For example the script: - * - * puts hello - * set $i $x$y [foo]BAR - * - * will produce a ScriptObj with the following Tokens: - * - * ESC puts - * SEP - * ESC hello - * EOL - * ESC set - * EOL - * VAR i - * SEP - * VAR x - * VAR y - * SEP - * CMD foo - * ESC BAR - * EOL - * - * This is a description of the tokens, separators, and of lines. - * The command structure instead represents the number of arguments - * of every command, followed by the tokens of which every argument - * is composed. So for the example script, the cmdstruct array will - * contain: - * - * 2 1 1 4 1 1 2 2 - * - * Because "puts hello" has two args (2), composed of single tokens (1 1) - * While "set $i $x$y [foo]BAR" has four (4) args, the first two - * composed of single tokens (1 1) and the last two of double tokens - * (2 2). - * - * The precomputation of the command structure makes Jim_Eval() faster, - * and simpler because there aren't dynamic lengths / allocations. - * - * -- {expand} handling -- - * - * Expand is handled in a special way. When a command - * contains at least an argument with the {expand} prefix, - * the command structure presents a -1 before the integer - * describing the number of arguments. This is used in order - * to send the command exection to a different path in case - * of {expand} and guarantee a fast path for the more common - * case. Also, the integers describing the number of tokens - * are expressed with negative sign, to allow for fast check - * of what's an {expand}-prefixed argument and what not. - * - * For example the command: - * - * list {expand}{1 2} - * - * Will produce the following cmdstruct array: - * - * -1 2 1 -2 - * - * -- the substFlags field of the structure -- - * - * The scriptObj structure is used to represent both "script" objects - * and "subst" objects. In the second case, the cmdStruct related - * fields are not used at all, but there is an additional field used - * that is 'substFlags': this represents the flags used to turn - * the string into the intenral representation used to perform the - * substitution. If this flags are not what the application requires - * the scriptObj is created again. For example the script: - * - * subst -nocommands $string - * subst -novariables $string - * - * Will recreate the internal representation of the $string object - * two times. - */ -typedef struct ScriptObj { - int len; /* Length as number of tokens. */ - int commands; /* number of top-level commands in script. */ - ScriptToken *token; /* Tokens array. */ - int *cmdStruct; /* commands structure */ - int csLen; /* length of the cmdStruct array. */ - int substFlags; /* flags used for the compilation of "subst" objects */ - int inUse; /* Used to share a ScriptObj. Currently - only used by Jim_EvalObj() as protection against - shimmering of the currently evaluated object. */ - char *fileName; -} ScriptObj; - -void FreeScriptInternalRep(Jim_Interp *interp, Jim_Obj *objPtr) -{ - int i; - struct ScriptObj *script = (void*) objPtr->internalRep.ptr; - - if (!script) - return; - - script->inUse--; - if (script->inUse != 0) return; - for (i = 0; i < script->len; i++) { - if (script->token[i].objPtr != NULL) - Jim_DecrRefCount(interp, script->token[i].objPtr); - } - Jim_Free(script->token); - Jim_Free(script->cmdStruct); - Jim_Free(script->fileName); - Jim_Free(script); -} - -void DupScriptInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr) -{ - JIM_NOTUSED(interp); - JIM_NOTUSED(srcPtr); - - /* Just returns an simple string. */ - dupPtr->typePtr = NULL; -} - -/* Add a new token to the internal repr of a script object */ -static void ScriptObjAddToken(Jim_Interp *interp, struct ScriptObj *script, - char *strtoken, int len, int type, char *filename, int linenr) -{ - int prevtype; - struct ScriptToken *token; - - prevtype = (script->len == 0) ? JIM_TT_EOL : \ - script->token[script->len-1].type; - /* Skip tokens without meaning, like words separators - * following a word separator or an end of command and - * so on. */ - if (prevtype == JIM_TT_EOL) { - if (type == JIM_TT_EOL || type == JIM_TT_SEP) { - Jim_Free(strtoken); - return; - } - } else if (prevtype == JIM_TT_SEP) { - if (type == JIM_TT_SEP) { - Jim_Free(strtoken); - return; - } else if (type == JIM_TT_EOL) { - /* If an EOL is following by a SEP, drop the previous - * separator. */ - script->len--; - Jim_DecrRefCount(interp, script->token[script->len].objPtr); - } - } else if (prevtype != JIM_TT_EOL && prevtype != JIM_TT_SEP && - type == JIM_TT_ESC && len == 0) - { - /* Don't add empty tokens used in interpolation */ - Jim_Free(strtoken); - return; - } - /* Make space for a new istruction */ - script->len++; - script->token = Jim_Realloc(script->token, - sizeof(ScriptToken)*script->len); - /* Initialize the new token */ - token = script->token + (script->len-1); - token->type = type; - /* Every object is intially as a string, but the - * internal type may be specialized during execution of the - * script. */ - token->objPtr = Jim_NewStringObjNoAlloc(interp, strtoken, len); - /* To add source info to SEP and EOL tokens is useless because - * they will never by called as arguments of Jim_EvalObj(). */ - if (filename && type != JIM_TT_SEP && type != JIM_TT_EOL) - JimSetSourceInfo(interp, token->objPtr, filename, linenr); - Jim_IncrRefCount(token->objPtr); - token->linenr = linenr; -} - -/* Add an integer into the command structure field of the script object. */ -static void ScriptObjAddInt(struct ScriptObj *script, int val) -{ - script->csLen++; - script->cmdStruct = Jim_Realloc(script->cmdStruct, - sizeof(int)*script->csLen); - script->cmdStruct[script->csLen-1] = val; -} - -/* Search a Jim_Obj contained in 'script' with the same stinrg repr. - * of objPtr. Search nested script objects recursively. */ -static Jim_Obj *ScriptSearchLiteral(Jim_Interp *interp, ScriptObj *script, - ScriptObj *scriptBarrier, Jim_Obj *objPtr) -{ - int i; - - for (i = 0; i < script->len; i++) { - if (script->token[i].objPtr != objPtr && - Jim_StringEqObj(script->token[i].objPtr, objPtr, 0)) { - return script->token[i].objPtr; - } - /* Enter recursively on scripts only if the object - * is not the same as the one we are searching for - * shared occurrences. */ - if (script->token[i].objPtr->typePtr == &scriptObjType && - script->token[i].objPtr != objPtr) { - Jim_Obj *foundObjPtr; - - ScriptObj *subScript = - script->token[i].objPtr->internalRep.ptr; - /* Don't recursively enter the script we are trying - * to make shared to avoid circular references. */ - if (subScript == scriptBarrier) continue; - if (subScript != script) { - foundObjPtr = - ScriptSearchLiteral(interp, subScript, - scriptBarrier, objPtr); - if (foundObjPtr != NULL) - return foundObjPtr; - } - } - } - return NULL; -} - -/* Share literals of a script recursively sharing sub-scripts literals. */ -static void ScriptShareLiterals(Jim_Interp *interp, ScriptObj *script, - ScriptObj *topLevelScript) -{ - int i, j; - - return; - /* Try to share with toplevel object. */ - if (topLevelScript != NULL) { - for (i = 0; i < script->len; i++) { - Jim_Obj *foundObjPtr; - char *str = script->token[i].objPtr->bytes; - - if (script->token[i].objPtr->refCount != 1) continue; - if (script->token[i].objPtr->typePtr == &scriptObjType) continue; - if (strchr(str, ' ') || strchr(str, '\n')) continue; - foundObjPtr = ScriptSearchLiteral(interp, - topLevelScript, - script, /* barrier */ - script->token[i].objPtr); - if (foundObjPtr != NULL) { - Jim_IncrRefCount(foundObjPtr); - Jim_DecrRefCount(interp, - script->token[i].objPtr); - script->token[i].objPtr = foundObjPtr; - } - } - } - /* Try to share locally */ - for (i = 0; i < script->len; i++) { - char *str = script->token[i].objPtr->bytes; - - if (script->token[i].objPtr->refCount != 1) continue; - if (strchr(str, ' ') || strchr(str, '\n')) continue; - for (j = 0; j < script->len; j++) { - if (script->token[i].objPtr != - script->token[j].objPtr && - Jim_StringEqObj(script->token[i].objPtr, - script->token[j].objPtr, 0)) - { - Jim_IncrRefCount(script->token[j].objPtr); - Jim_DecrRefCount(interp, - script->token[i].objPtr); - script->token[i].objPtr = - script->token[j].objPtr; - } - } - } -} - -/* This method takes the string representation of an object - * as a Tcl script, and generates the pre-parsed internal representation - * of the script. */ -int SetScriptFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr) -{ - int scriptTextLen; - const char *scriptText = Jim_GetString(objPtr, &scriptTextLen); - struct JimParserCtx parser; - struct ScriptObj *script = Jim_Alloc(sizeof(*script)); - ScriptToken *token; - int args, tokens, start, end, i; - int initialLineNumber; - int propagateSourceInfo = 0; - - script->len = 0; - script->csLen = 0; - script->commands = 0; - script->token = NULL; - script->cmdStruct = NULL; - script->inUse = 1; - /* Try to get information about filename / line number */ - if (objPtr->typePtr == &sourceObjType) { - script->fileName = - Jim_StrDup(objPtr->internalRep.sourceValue.fileName); - initialLineNumber = objPtr->internalRep.sourceValue.lineNumber; - propagateSourceInfo = 1; - } else { - script->fileName = Jim_StrDup(""); - initialLineNumber = 1; - } - - JimParserInit(&parser, scriptText, scriptTextLen, initialLineNumber); - while (!JimParserEof(&parser)) { - char *token_t; - int len, type, linenr; - - JimParseScript(&parser); - token_t = JimParserGetToken(&parser, &len, &type, &linenr); - ScriptObjAddToken(interp, script, token_t, len, type, - propagateSourceInfo ? script->fileName : NULL, - linenr); - } - token = script->token; - - /* Compute the command structure array - * (see the ScriptObj struct definition for more info) */ - start = 0; /* Current command start token index */ - end = -1; /* Current command end token index */ - while (1) { - int expand = 0; /* expand flag. set to 1 on {expand} form. */ - int interpolation = 0; /* set to 1 if there is at least one - argument of the command obtained via - interpolation of more tokens. */ - /* Search for the end of command, while - * count the number of args. */ - start = ++end; - if (start >= script->len) break; - args = 1; /* Number of args in current command */ - while (token[end].type != JIM_TT_EOL) { - if (end == 0 || token[end-1].type == JIM_TT_SEP || - token[end-1].type == JIM_TT_EOL) - { - if (token[end].type == JIM_TT_STR && - token[end + 1].type != JIM_TT_SEP && - token[end + 1].type != JIM_TT_EOL && - (!strcmp(token[end].objPtr->bytes, "expand") || - !strcmp(token[end].objPtr->bytes, "*"))) - expand++; - } - if (token[end].type == JIM_TT_SEP) - args++; - end++; - } - interpolation = !((end-start + 1) == args*2); - /* Add the 'number of arguments' info into cmdstruct. - * Negative value if there is list expansion involved. */ - if (expand) - ScriptObjAddInt(script, -1); - ScriptObjAddInt(script, args); - /* Now add info about the number of tokens. */ - tokens = 0; /* Number of tokens in current argument. */ - expand = 0; - for (i = start; i <= end; i++) { - if (token[i].type == JIM_TT_SEP || - token[i].type == JIM_TT_EOL) - { - if (tokens == 1 && expand) - expand = 0; - ScriptObjAddInt(script, - expand ? -tokens : tokens); - - expand = 0; - tokens = 0; - continue; - } else if (tokens == 0 && token[i].type == JIM_TT_STR && - (!strcmp(token[i].objPtr->bytes, "expand") || - !strcmp(token[i].objPtr->bytes, "*"))) - { - expand++; - } - tokens++; - } - } - /* Perform literal sharing, but only for objects that appear - * to be scripts written as literals inside the source code, - * and not computed at runtime. Literal sharing is a costly - * operation that should be done only against objects that - * are likely to require compilation only the first time, and - * then are executed multiple times. */ - if (propagateSourceInfo && interp->framePtr->procBodyObjPtr) { - Jim_Obj *bodyObjPtr = interp->framePtr->procBodyObjPtr; - if (bodyObjPtr->typePtr == &scriptObjType) { - ScriptObj *bodyScript = - bodyObjPtr->internalRep.ptr; - ScriptShareLiterals(interp, script, bodyScript); - } - } else if (propagateSourceInfo) { - ScriptShareLiterals(interp, script, NULL); - } - /* Free the old internal rep and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - Jim_SetIntRepPtr(objPtr, script); - objPtr->typePtr = &scriptObjType; - return JIM_OK; -} - -ScriptObj *Jim_GetScript(Jim_Interp *interp, Jim_Obj *objPtr) -{ - if (objPtr->typePtr != &scriptObjType) { - SetScriptFromAny(interp, objPtr); - } - return (ScriptObj*) Jim_GetIntRepPtr(objPtr); -} - -/* ----------------------------------------------------------------------------- - * Commands - * ---------------------------------------------------------------------------*/ - -/* Commands HashTable Type. - * - * Keys are dynamic allocated strings, Values are Jim_Cmd structures. */ -static void Jim_CommandsHT_ValDestructor(void *interp, void *val) -{ - Jim_Cmd *cmdPtr = (void*) val; - - if (cmdPtr->cmdProc == NULL) { - Jim_DecrRefCount(interp, cmdPtr->argListObjPtr); - Jim_DecrRefCount(interp, cmdPtr->bodyObjPtr); - if (cmdPtr->staticVars) { - Jim_FreeHashTable(cmdPtr->staticVars); - Jim_Free(cmdPtr->staticVars); - } - } else if (cmdPtr->delProc != NULL) { - /* If it was a C coded command, call the delProc if any */ - cmdPtr->delProc(interp, cmdPtr->privData); - } - Jim_Free(val); -} - -static Jim_HashTableType JimCommandsHashTableType = { - JimStringCopyHTHashFunction, /* hash function */ - JimStringCopyHTKeyDup, /* key dup */ - NULL, /* val dup */ - JimStringCopyHTKeyCompare, /* key compare */ - JimStringCopyHTKeyDestructor, /* key destructor */ - Jim_CommandsHT_ValDestructor /* val destructor */ -}; - -/* ------------------------- Commands related functions --------------------- */ - -int Jim_CreateCommand(Jim_Interp *interp, const char *cmdName, - Jim_CmdProc cmdProc, void *privData, Jim_DelCmdProc delProc) -{ - Jim_HashEntry *he; - Jim_Cmd *cmdPtr; - - he = Jim_FindHashEntry(&interp->commands, cmdName); - if (he == NULL) { /* New command to create */ - cmdPtr = Jim_Alloc(sizeof(*cmdPtr)); - Jim_AddHashEntry(&interp->commands, cmdName, cmdPtr); - } else { - Jim_InterpIncrProcEpoch(interp); - /* Free the arglist/body objects if it was a Tcl procedure */ - cmdPtr = he->val; - if (cmdPtr->cmdProc == NULL) { - Jim_DecrRefCount(interp, cmdPtr->argListObjPtr); - Jim_DecrRefCount(interp, cmdPtr->bodyObjPtr); - if (cmdPtr->staticVars) { - Jim_FreeHashTable(cmdPtr->staticVars); - Jim_Free(cmdPtr->staticVars); - } - cmdPtr->staticVars = NULL; - } else if (cmdPtr->delProc != NULL) { - /* If it was a C coded command, call the delProc if any */ - cmdPtr->delProc(interp, cmdPtr->privData); - } - } - - /* Store the new details for this proc */ - cmdPtr->delProc = delProc; - cmdPtr->cmdProc = cmdProc; - cmdPtr->privData = privData; - - /* There is no need to increment the 'proc epoch' because - * creation of a new procedure can never affect existing - * cached commands. We don't do negative caching. */ - return JIM_OK; -} - -int Jim_CreateProcedure(Jim_Interp *interp, const char *cmdName, - Jim_Obj *argListObjPtr, Jim_Obj *staticsListObjPtr, Jim_Obj *bodyObjPtr, - int arityMin, int arityMax) -{ - Jim_Cmd *cmdPtr; - - cmdPtr = Jim_Alloc(sizeof(*cmdPtr)); - cmdPtr->cmdProc = NULL; /* Not a C coded command */ - cmdPtr->argListObjPtr = argListObjPtr; - cmdPtr->bodyObjPtr = bodyObjPtr; - Jim_IncrRefCount(argListObjPtr); - Jim_IncrRefCount(bodyObjPtr); - cmdPtr->arityMin = arityMin; - cmdPtr->arityMax = arityMax; - cmdPtr->staticVars = NULL; - - /* Create the statics hash table. */ - if (staticsListObjPtr) { - int len, i; - - Jim_ListLength(interp, staticsListObjPtr, &len); - if (len != 0) { - cmdPtr->staticVars = Jim_Alloc(sizeof(Jim_HashTable)); - Jim_InitHashTable(cmdPtr->staticVars, getJimVariablesHashTableType(), - interp); - for (i = 0; i < len; i++) { - Jim_Obj *objPtr=NULL, *initObjPtr=NULL, *nameObjPtr=NULL; - Jim_Var *varPtr; - int subLen; - - Jim_ListIndex(interp, staticsListObjPtr, i, &objPtr, JIM_NONE); - /* Check if it's composed of two elements. */ - Jim_ListLength(interp, objPtr, &subLen); - if (subLen == 1 || subLen == 2) { - /* Try to get the variable value from the current - * environment. */ - Jim_ListIndex(interp, objPtr, 0, &nameObjPtr, JIM_NONE); - if (subLen == 1) { - initObjPtr = Jim_GetVariable(interp, nameObjPtr, - JIM_NONE); - if (initObjPtr == NULL) { - Jim_SetResult(interp, - Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "variable for initialization of static \"", - Jim_GetString(nameObjPtr, NULL), - "\" not found in the local context", - NULL); - goto err; - } - } else { - Jim_ListIndex(interp, objPtr, 1, &initObjPtr, JIM_NONE); - } - varPtr = Jim_Alloc(sizeof(*varPtr)); - varPtr->objPtr = initObjPtr; - Jim_IncrRefCount(initObjPtr); - varPtr->linkFramePtr = NULL; - if (Jim_AddHashEntry(cmdPtr->staticVars, - Jim_GetString(nameObjPtr, NULL), - varPtr) != JIM_OK) - { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "static variable name \"", - Jim_GetString(objPtr, NULL), "\"", - " duplicated in statics list", NULL); - Jim_DecrRefCount(interp, initObjPtr); - Jim_Free(varPtr); - goto err; - } - } else { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "too many fields in static specifier \"", - objPtr, "\"", NULL); - goto err; - } - } - } - } - - /* Add the new command */ - - /* it may already exist, so we try to delete the old one */ - if (Jim_DeleteHashEntry(&interp->commands, cmdName) != JIM_ERR) { - /* There was an old procedure with the same name, this requires - * a 'proc epoch' update. */ - Jim_InterpIncrProcEpoch(interp); - } - /* If a procedure with the same name didn't existed there is no need - * to increment the 'proc epoch' because creation of a new procedure - * can never affect existing cached commands. We don't do - * negative caching. */ - Jim_AddHashEntry(&interp->commands, cmdName, cmdPtr); - return JIM_OK; - -err: - Jim_FreeHashTable(cmdPtr->staticVars); - Jim_Free(cmdPtr->staticVars); - Jim_DecrRefCount(interp, argListObjPtr); - Jim_DecrRefCount(interp, bodyObjPtr); - Jim_Free(cmdPtr); - return JIM_ERR; -} - -int Jim_DeleteCommand(Jim_Interp *interp, const char *cmdName) -{ - if (Jim_DeleteHashEntry(&interp->commands, cmdName) == JIM_ERR) - return JIM_ERR; - Jim_InterpIncrProcEpoch(interp); - return JIM_OK; -} - -int Jim_RenameCommand(Jim_Interp *interp, const char *oldName, - const char *newName) -{ - Jim_Cmd *cmdPtr; - Jim_HashEntry *he; - Jim_Cmd *copyCmdPtr; - - if (newName[0] == '\0') /* Delete! */ - return Jim_DeleteCommand(interp, oldName); - /* Rename */ - he = Jim_FindHashEntry(&interp->commands, oldName); - if (he == NULL) - return JIM_ERR; /* Invalid command name */ - cmdPtr = he->val; - copyCmdPtr = Jim_Alloc(sizeof(Jim_Cmd)); - *copyCmdPtr = *cmdPtr; - /* In order to avoid that a procedure will get arglist/body/statics - * freed by the hash table methods, fake a C-coded command - * setting cmdPtr->cmdProc as not NULL */ - cmdPtr->cmdProc = (void*)1; - /* Also make sure delProc is NULL. */ - cmdPtr->delProc = NULL; - /* Destroy the old command, and make sure the new is freed - * as well. */ - Jim_DeleteHashEntry(&interp->commands, oldName); - Jim_DeleteHashEntry(&interp->commands, newName); - /* Now the new command. We are sure it can't fail because - * the target name was already freed. */ - Jim_AddHashEntry(&interp->commands, newName, copyCmdPtr); - /* Increment the epoch */ - Jim_InterpIncrProcEpoch(interp); - return JIM_OK; -} - -/* ----------------------------------------------------------------------------- - * Command object - * ---------------------------------------------------------------------------*/ - -static int SetCommandFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr); - -static Jim_ObjType commandObjType = { - "command", - NULL, - NULL, - NULL, - JIM_TYPE_REFERENCES, -}; - -int SetCommandFromAny(Jim_Interp *interp, Jim_Obj *objPtr) -{ - Jim_HashEntry *he; - const char *cmdName; - - /* Get the string representation */ - cmdName = Jim_GetString(objPtr, NULL); - /* Lookup this name into the commands hash table */ - he = Jim_FindHashEntry(&interp->commands, cmdName); - if (he == NULL) - return JIM_ERR; - - /* Free the old internal repr and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &commandObjType; - objPtr->internalRep.cmdValue.procEpoch = interp->procEpoch; - objPtr->internalRep.cmdValue.cmdPtr = (void*)he->val; - return JIM_OK; -} - -/* This function returns the command structure for the command name - * stored in objPtr. It tries to specialize the objPtr to contain - * a cached info instead to perform the lookup into the hash table - * every time. The information cached may not be uptodate, in such - * a case the lookup is performed and the cache updated. */ -Jim_Cmd *Jim_GetCommand(Jim_Interp *interp, Jim_Obj *objPtr, int flags) -{ - if ((objPtr->typePtr != &commandObjType || - objPtr->internalRep.cmdValue.procEpoch != interp->procEpoch) && - SetCommandFromAny(interp, objPtr) == JIM_ERR) { - if (flags & JIM_ERRMSG) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "invalid command name \"", objPtr->bytes, "\"", - NULL); - } - return NULL; - } - return objPtr->internalRep.cmdValue.cmdPtr; -} - -/* ----------------------------------------------------------------------------- - * Variables - * ---------------------------------------------------------------------------*/ - -/* Variables HashTable Type. - * - * Keys are dynamic allocated strings, Values are Jim_Var structures. */ -static void JimVariablesHTValDestructor(void *interp, void *val) -{ - Jim_Var *varPtr = (void*) val; - - Jim_DecrRefCount(interp, varPtr->objPtr); - Jim_Free(val); -} - -static Jim_HashTableType JimVariablesHashTableType = { - JimStringCopyHTHashFunction, /* hash function */ - JimStringCopyHTKeyDup, /* key dup */ - NULL, /* val dup */ - JimStringCopyHTKeyCompare, /* key compare */ - JimStringCopyHTKeyDestructor, /* key destructor */ - JimVariablesHTValDestructor /* val destructor */ -}; - -static Jim_HashTableType *getJimVariablesHashTableType(void) -{ - return &JimVariablesHashTableType; -} - -/* ----------------------------------------------------------------------------- - * Variable object - * ---------------------------------------------------------------------------*/ - -#define JIM_DICT_SUGAR 100 /* Only returned by SetVariableFromAny() */ - -static int SetVariableFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr); - -static Jim_ObjType variableObjType = { - "variable", - NULL, - NULL, - NULL, - JIM_TYPE_REFERENCES, -}; - -/* Return true if the string "str" looks like syntax sugar for [dict]. I.e. - * is in the form "varname(key)". */ -static int Jim_NameIsDictSugar(const char *str, int len) -{ - if (len == -1) - len = strlen(str); - if (len && str[len-1] == ')' && strchr(str, '(') != NULL) - return 1; - return 0; -} - -/* This method should be called only by the variable API. - * It returns JIM_OK on success (variable already exists), - * JIM_ERR if it does not exists, JIM_DICT_GLUE if it's not - * a variable name, but syntax glue for [dict] i.e. the last - * character is ')' */ -int SetVariableFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr) -{ - Jim_HashEntry *he; - const char *varName; - int len; - - /* Check if the object is already an uptodate variable */ - if (objPtr->typePtr == &variableObjType && - objPtr->internalRep.varValue.callFrameId == interp->framePtr->id) - return JIM_OK; /* nothing to do */ - /* Get the string representation */ - varName = Jim_GetString(objPtr, &len); - /* Make sure it's not syntax glue to get/set dict. */ - if (Jim_NameIsDictSugar(varName, len)) - return JIM_DICT_SUGAR; - if (varName[0] == ':' && varName[1] == ':') { - he = Jim_FindHashEntry(&interp->topFramePtr->vars, varName + 2); - if (he == NULL) { - return JIM_ERR; - } - } - else { - /* Lookup this name into the variables hash table */ - he = Jim_FindHashEntry(&interp->framePtr->vars, varName); - if (he == NULL) { - /* Try with static vars. */ - if (interp->framePtr->staticVars == NULL) - return JIM_ERR; - if (!(he = Jim_FindHashEntry(interp->framePtr->staticVars, varName))) - return JIM_ERR; - } - } - /* Free the old internal repr and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &variableObjType; - objPtr->internalRep.varValue.callFrameId = interp->framePtr->id; - objPtr->internalRep.varValue.varPtr = (void*)he->val; - return JIM_OK; -} - -/* -------------------- Variables related functions ------------------------- */ -static int JimDictSugarSet(Jim_Interp *interp, Jim_Obj *ObjPtr, - Jim_Obj *valObjPtr); -static Jim_Obj *JimDictSugarGet(Jim_Interp *interp, Jim_Obj *ObjPtr); - -/* For now that's dummy. Variables lookup should be optimized - * in many ways, with caching of lookups, and possibly with - * a table of pre-allocated vars in every CallFrame for local vars. - * All the caching should also have an 'epoch' mechanism similar - * to the one used by Tcl for procedures lookup caching. */ - -int Jim_SetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, Jim_Obj *valObjPtr) -{ - const char *name; - Jim_Var *var; - int err; - - if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) { - /* Check for [dict] syntax sugar. */ - if (err == JIM_DICT_SUGAR) - return JimDictSugarSet(interp, nameObjPtr, valObjPtr); - /* New variable to create */ - name = Jim_GetString(nameObjPtr, NULL); - - var = Jim_Alloc(sizeof(*var)); - var->objPtr = valObjPtr; - Jim_IncrRefCount(valObjPtr); - var->linkFramePtr = NULL; - /* Insert the new variable */ - if (name[0] == ':' && name[1] == ':') { - /* Into to the top evel frame */ - Jim_AddHashEntry(&interp->topFramePtr->vars, name + 2, var); - } - else { - Jim_AddHashEntry(&interp->framePtr->vars, name, var); - } - /* Make the object int rep a variable */ - Jim_FreeIntRep(interp, nameObjPtr); - nameObjPtr->typePtr = &variableObjType; - nameObjPtr->internalRep.varValue.callFrameId = - interp->framePtr->id; - nameObjPtr->internalRep.varValue.varPtr = var; - } else { - var = nameObjPtr->internalRep.varValue.varPtr; - if (var->linkFramePtr == NULL) { - Jim_IncrRefCount(valObjPtr); - Jim_DecrRefCount(interp, var->objPtr); - var->objPtr = valObjPtr; - } else { /* Else handle the link */ - Jim_CallFrame *savedCallFrame; - - savedCallFrame = interp->framePtr; - interp->framePtr = var->linkFramePtr; - err = Jim_SetVariable(interp, var->objPtr, valObjPtr); - interp->framePtr = savedCallFrame; - if (err != JIM_OK) - return err; - } - } - return JIM_OK; -} - -int Jim_SetVariableStr(Jim_Interp *interp, const char *name, Jim_Obj *objPtr) -{ - Jim_Obj *nameObjPtr; - int result; - - nameObjPtr = Jim_NewStringObj(interp, name, -1); - Jim_IncrRefCount(nameObjPtr); - result = Jim_SetVariable(interp, nameObjPtr, objPtr); - Jim_DecrRefCount(interp, nameObjPtr); - return result; -} - -int Jim_SetGlobalVariableStr(Jim_Interp *interp, const char *name, Jim_Obj *objPtr) -{ - Jim_CallFrame *savedFramePtr; - int result; - - savedFramePtr = interp->framePtr; - interp->framePtr = interp->topFramePtr; - result = Jim_SetVariableStr(interp, name, objPtr); - interp->framePtr = savedFramePtr; - return result; -} - -int Jim_SetVariableStrWithStr(Jim_Interp *interp, const char *name, const char *val) -{ - Jim_Obj *nameObjPtr, *valObjPtr; - int result; - - nameObjPtr = Jim_NewStringObj(interp, name, -1); - valObjPtr = Jim_NewStringObj(interp, val, -1); - Jim_IncrRefCount(nameObjPtr); - Jim_IncrRefCount(valObjPtr); - result = Jim_SetVariable(interp, nameObjPtr, valObjPtr); - Jim_DecrRefCount(interp, nameObjPtr); - Jim_DecrRefCount(interp, valObjPtr); - return result; -} - -int Jim_SetVariableLink(Jim_Interp *interp, Jim_Obj *nameObjPtr, - Jim_Obj *targetNameObjPtr, Jim_CallFrame *targetCallFrame) -{ - const char *varName; - int len; - - /* Check for cycles. */ - if (interp->framePtr == targetCallFrame) { - Jim_Obj *objPtr = targetNameObjPtr; - Jim_Var *varPtr; - /* Cycles are only possible with 'uplevel 0' */ - while (1) { - if (Jim_StringEqObj(objPtr, nameObjPtr, 0)) { - Jim_SetResultString(interp, - "can't upvar from variable to itself", -1); - return JIM_ERR; - } - if (SetVariableFromAny(interp, objPtr) != JIM_OK) - break; - varPtr = objPtr->internalRep.varValue.varPtr; - if (varPtr->linkFramePtr != targetCallFrame) break; - objPtr = varPtr->objPtr; - } - } - varName = Jim_GetString(nameObjPtr, &len); - if (Jim_NameIsDictSugar(varName, len)) { - Jim_SetResultString(interp, - "Dict key syntax invalid as link source", -1); - return JIM_ERR; - } - /* Perform the binding */ - Jim_SetVariable(interp, nameObjPtr, targetNameObjPtr); - /* We are now sure 'nameObjPtr' type is variableObjType */ - nameObjPtr->internalRep.varValue.varPtr->linkFramePtr = targetCallFrame; - return JIM_OK; -} - -/* Return the Jim_Obj pointer associated with a variable name, - * or NULL if the variable was not found in the current context. - * The same optimization discussed in the comment to the - * 'SetVariable' function should apply here. */ -Jim_Obj *Jim_GetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, int flags) -{ - int err; - - /* All the rest is handled here */ - if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) { - /* Check for [dict] syntax sugar. */ - if (err == JIM_DICT_SUGAR) - return JimDictSugarGet(interp, nameObjPtr); - if (flags & JIM_ERRMSG) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "can't read \"", nameObjPtr->bytes, - "\": no such variable", NULL); - } - return NULL; - } else { - Jim_Var *varPtr; - Jim_Obj *objPtr; - Jim_CallFrame *savedCallFrame; - - varPtr = nameObjPtr->internalRep.varValue.varPtr; - if (varPtr->linkFramePtr == NULL) - return varPtr->objPtr; - /* The variable is a link? Resolve it. */ - savedCallFrame = interp->framePtr; - interp->framePtr = varPtr->linkFramePtr; - objPtr = Jim_GetVariable(interp, varPtr->objPtr, JIM_NONE); - if (objPtr == NULL && flags & JIM_ERRMSG) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "can't read \"", nameObjPtr->bytes, - "\": no such variable", NULL); - } - interp->framePtr = savedCallFrame; - return objPtr; - } -} - -Jim_Obj *Jim_GetGlobalVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, - int flags) -{ - Jim_CallFrame *savedFramePtr; - Jim_Obj *objPtr; - - savedFramePtr = interp->framePtr; - interp->framePtr = interp->topFramePtr; - objPtr = Jim_GetVariable(interp, nameObjPtr, flags); - interp->framePtr = savedFramePtr; - - return objPtr; -} - -Jim_Obj *Jim_GetVariableStr(Jim_Interp *interp, const char *name, int flags) -{ - Jim_Obj *nameObjPtr, *varObjPtr; - - nameObjPtr = Jim_NewStringObj(interp, name, -1); - Jim_IncrRefCount(nameObjPtr); - varObjPtr = Jim_GetVariable(interp, nameObjPtr, flags); - Jim_DecrRefCount(interp, nameObjPtr); - return varObjPtr; -} - -Jim_Obj *Jim_GetGlobalVariableStr(Jim_Interp *interp, const char *name, - int flags) -{ - Jim_CallFrame *savedFramePtr; - Jim_Obj *objPtr; - - savedFramePtr = interp->framePtr; - interp->framePtr = interp->topFramePtr; - objPtr = Jim_GetVariableStr(interp, name, flags); - interp->framePtr = savedFramePtr; - - return objPtr; -} - -/* Unset a variable. - * Note: On success unset invalidates all the variable objects created - * in the current call frame incrementing. */ -int Jim_UnsetVariable(Jim_Interp *interp, Jim_Obj *nameObjPtr, int flags) -{ - const char *name; - Jim_Var *varPtr; - int err; - - if ((err = SetVariableFromAny(interp, nameObjPtr)) != JIM_OK) { - /* Check for [dict] syntax sugar. */ - if (err == JIM_DICT_SUGAR) - return JimDictSugarSet(interp, nameObjPtr, NULL); - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "can't unset \"", nameObjPtr->bytes, - "\": no such variable", NULL); - return JIM_ERR; /* var not found */ - } - varPtr = nameObjPtr->internalRep.varValue.varPtr; - /* If it's a link call UnsetVariable recursively */ - if (varPtr->linkFramePtr) { - int retval; - - Jim_CallFrame *savedCallFrame; - - savedCallFrame = interp->framePtr; - interp->framePtr = varPtr->linkFramePtr; - retval = Jim_UnsetVariable(interp, varPtr->objPtr, JIM_NONE); - interp->framePtr = savedCallFrame; - if (retval != JIM_OK && flags & JIM_ERRMSG) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "can't unset \"", nameObjPtr->bytes, - "\": no such variable", NULL); - } - return retval; - } else { - name = Jim_GetString(nameObjPtr, NULL); - if (Jim_DeleteHashEntry(&interp->framePtr->vars, name) - != JIM_OK) return JIM_ERR; - /* Change the callframe id, invalidating var lookup caching */ - JimChangeCallFrameId(interp, interp->framePtr); - return JIM_OK; - } -} - -/* ---------- Dict syntax sugar (similar to array Tcl syntax) -------------- */ - -/* Given a variable name for [dict] operation syntax sugar, - * this function returns two objects, the first with the name - * of the variable to set, and the second with the rispective key. - * For example "foo(bar)" will return objects with string repr. of - * "foo" and "bar". - * - * The returned objects have refcount = 1. The function can't fail. */ -static void JimDictSugarParseVarKey(Jim_Interp *interp, Jim_Obj *objPtr, - Jim_Obj **varPtrPtr, Jim_Obj **keyPtrPtr) -{ - const char *str, *p; - char *t; - int len, keyLen, nameLen; - Jim_Obj *varObjPtr, *keyObjPtr; - - str = Jim_GetString(objPtr, &len); - p = strchr(str, '('); - p++; - keyLen = len-((p-str) + 1); - nameLen = (p-str)-1; - /* Create the objects with the variable name and key. */ - t = Jim_Alloc(nameLen + 1); - memcpy(t, str, nameLen); - t[nameLen] = '\0'; - varObjPtr = Jim_NewStringObjNoAlloc(interp, t, nameLen); - - t = Jim_Alloc(keyLen + 1); - memcpy(t, p, keyLen); - t[keyLen] = '\0'; - keyObjPtr = Jim_NewStringObjNoAlloc(interp, t, keyLen); - - Jim_IncrRefCount(varObjPtr); - Jim_IncrRefCount(keyObjPtr); - *varPtrPtr = varObjPtr; - *keyPtrPtr = keyObjPtr; -} - -/* Helper of Jim_SetVariable() to deal with dict-syntax variable names. - * Also used by Jim_UnsetVariable() with valObjPtr = NULL. */ -static int JimDictSugarSet(Jim_Interp *interp, Jim_Obj *objPtr, - Jim_Obj *valObjPtr) -{ - Jim_Obj *varObjPtr, *keyObjPtr; - int err = JIM_OK; - - JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr); - err = Jim_SetDictKeysVector(interp, varObjPtr, &keyObjPtr, 1, - valObjPtr); - Jim_DecrRefCount(interp, varObjPtr); - Jim_DecrRefCount(interp, keyObjPtr); - return err; -} - -/* Helper of Jim_GetVariable() to deal with dict-syntax variable names */ -static Jim_Obj *JimDictSugarGet(Jim_Interp *interp, Jim_Obj *objPtr) -{ - Jim_Obj *varObjPtr, *keyObjPtr, *dictObjPtr, *resObjPtr; - - JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr); - dictObjPtr = Jim_GetVariable(interp, varObjPtr, JIM_ERRMSG); - if (!dictObjPtr) { - resObjPtr = NULL; - goto err; - } - if (Jim_DictKey(interp, dictObjPtr, keyObjPtr, &resObjPtr, JIM_ERRMSG) - != JIM_OK) { - resObjPtr = NULL; - } -err: - Jim_DecrRefCount(interp, varObjPtr); - Jim_DecrRefCount(interp, keyObjPtr); - return resObjPtr; -} - -/* --------- $var(INDEX) substitution, using a specialized object ----------- */ - -static void FreeDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *objPtr); -static void DupDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, - Jim_Obj *dupPtr); - -static Jim_ObjType dictSubstObjType = { - "dict-substitution", - FreeDictSubstInternalRep, - DupDictSubstInternalRep, - NULL, - JIM_TYPE_NONE, -}; - -void FreeDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *objPtr) -{ - Jim_DecrRefCount(interp, objPtr->internalRep.dictSubstValue.varNameObjPtr); - Jim_DecrRefCount(interp, objPtr->internalRep.dictSubstValue.indexObjPtr); -} - -void DupDictSubstInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, - Jim_Obj *dupPtr) -{ - JIM_NOTUSED(interp); - - dupPtr->internalRep.dictSubstValue.varNameObjPtr = - srcPtr->internalRep.dictSubstValue.varNameObjPtr; - dupPtr->internalRep.dictSubstValue.indexObjPtr = - srcPtr->internalRep.dictSubstValue.indexObjPtr; - dupPtr->typePtr = &dictSubstObjType; -} - -/* This function is used to expand [dict get] sugar in the form - * of $var(INDEX). The function is mainly used by Jim_EvalObj() - * to deal with tokens of type JIM_TT_DICTSUGAR. objPtr points to an - * object that is *guaranteed* to be in the form VARNAME(INDEX). - * The 'index' part is [subst]ituted, and is used to lookup a key inside - * the [dict]ionary contained in variable VARNAME. */ -Jim_Obj *Jim_ExpandDictSugar(Jim_Interp *interp, Jim_Obj *objPtr) -{ - Jim_Obj *varObjPtr, *keyObjPtr, *dictObjPtr, *resObjPtr; - Jim_Obj *substKeyObjPtr = NULL; - - if (objPtr->typePtr != &dictSubstObjType) { - JimDictSugarParseVarKey(interp, objPtr, &varObjPtr, &keyObjPtr); - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &dictSubstObjType; - objPtr->internalRep.dictSubstValue.varNameObjPtr = varObjPtr; - objPtr->internalRep.dictSubstValue.indexObjPtr = keyObjPtr; - } - if (Jim_SubstObj(interp, objPtr->internalRep.dictSubstValue.indexObjPtr, - &substKeyObjPtr, JIM_NONE) - != JIM_OK) { - substKeyObjPtr = NULL; - goto err; - } - Jim_IncrRefCount(substKeyObjPtr); - dictObjPtr = Jim_GetVariable(interp, - objPtr->internalRep.dictSubstValue.varNameObjPtr, JIM_ERRMSG); - if (!dictObjPtr) { - resObjPtr = NULL; - goto err; - } - if (Jim_DictKey(interp, dictObjPtr, substKeyObjPtr, &resObjPtr, JIM_ERRMSG) - != JIM_OK) { - resObjPtr = NULL; - goto err; - } -err: - if (substKeyObjPtr) Jim_DecrRefCount(interp, substKeyObjPtr); - return resObjPtr; -} - -/* ----------------------------------------------------------------------------- - * CallFrame - * ---------------------------------------------------------------------------*/ - -static Jim_CallFrame *JimCreateCallFrame(Jim_Interp *interp) -{ - Jim_CallFrame *cf; - if (interp->freeFramesList) { - cf = interp->freeFramesList; - interp->freeFramesList = cf->nextFramePtr; - } else { - cf = Jim_Alloc(sizeof(*cf)); - cf->vars.table = NULL; - } - - cf->id = interp->callFrameEpoch++; - cf->parentCallFrame = NULL; - cf->argv = NULL; - cf->argc = 0; - cf->procArgsObjPtr = NULL; - cf->procBodyObjPtr = NULL; - cf->nextFramePtr = NULL; - cf->staticVars = NULL; - if (cf->vars.table == NULL) - Jim_InitHashTable(&cf->vars, &JimVariablesHashTableType, interp); - return cf; -} - -/* Used to invalidate every caching related to callframe stability. */ -static void JimChangeCallFrameId(Jim_Interp *interp, Jim_CallFrame *cf) -{ - cf->id = interp->callFrameEpoch++; -} - -#define JIM_FCF_NONE 0 /* no flags */ -#define JIM_FCF_NOHT 1 /* don't free the hash table */ -static void JimFreeCallFrame(Jim_Interp *interp, Jim_CallFrame *cf, - int flags) -{ - if (cf->procArgsObjPtr) Jim_DecrRefCount(interp, cf->procArgsObjPtr); - if (cf->procBodyObjPtr) Jim_DecrRefCount(interp, cf->procBodyObjPtr); - if (!(flags & JIM_FCF_NOHT)) - Jim_FreeHashTable(&cf->vars); - else { - int i; - Jim_HashEntry **table = cf->vars.table, *he; - - for (i = 0; i < JIM_HT_INITIAL_SIZE; i++) { - he = table[i]; - while (he != NULL) { - Jim_HashEntry *nextEntry = he->next; - Jim_Var *varPtr = (void*) he->val; - - Jim_DecrRefCount(interp, varPtr->objPtr); - Jim_Free(he->val); - Jim_Free((void*)he->key); /* ATTENTION: const cast */ - Jim_Free(he); - table[i] = NULL; - he = nextEntry; - } - } - cf->vars.used = 0; - } - cf->nextFramePtr = interp->freeFramesList; - interp->freeFramesList = cf; -} - -/* ----------------------------------------------------------------------------- - * References - * ---------------------------------------------------------------------------*/ - -/* References HashTable Type. - * - * Keys are jim_wide integers, dynamically allocated for now but in the - * future it's worth to cache this 8 bytes objects. Values are poitners - * to Jim_References. */ -static void JimReferencesHTValDestructor(void *interp, void *val) -{ - Jim_Reference *refPtr = (void*) val; - - Jim_DecrRefCount(interp, refPtr->objPtr); - if (refPtr->finalizerCmdNamePtr != NULL) { - Jim_DecrRefCount(interp, refPtr->finalizerCmdNamePtr); - } - Jim_Free(val); -} - -unsigned int JimReferencesHTHashFunction(const void *key) -{ - /* Only the least significant bits are used. */ - const jim_wide *widePtr = key; - unsigned int intValue = (unsigned int) *widePtr; - return Jim_IntHashFunction(intValue); -} - -unsigned int JimReferencesHTDoubleHashFunction(const void *key) -{ - /* Only the least significant bits are used. */ - const jim_wide *widePtr = key; - unsigned int intValue = (unsigned int) *widePtr; - return intValue; /* identity function. */ -} - -const void *JimReferencesHTKeyDup(void *privdata, const void *key) -{ - void *copy = Jim_Alloc(sizeof(jim_wide)); - JIM_NOTUSED(privdata); - - memcpy(copy, key, sizeof(jim_wide)); - return copy; -} - -int JimReferencesHTKeyCompare(void *privdata, const void *key1, - const void *key2) -{ - JIM_NOTUSED(privdata); - - return memcmp(key1, key2, sizeof(jim_wide)) == 0; -} - -void JimReferencesHTKeyDestructor(void *privdata, const void *key) -{ - JIM_NOTUSED(privdata); - - Jim_Free((void*)key); -} - -static Jim_HashTableType JimReferencesHashTableType = { - JimReferencesHTHashFunction, /* hash function */ - JimReferencesHTKeyDup, /* key dup */ - NULL, /* val dup */ - JimReferencesHTKeyCompare, /* key compare */ - JimReferencesHTKeyDestructor, /* key destructor */ - JimReferencesHTValDestructor /* val destructor */ -}; - -/* ----------------------------------------------------------------------------- - * Reference object type and References API - * ---------------------------------------------------------------------------*/ - -static void UpdateStringOfReference(struct Jim_Obj *objPtr); - -static Jim_ObjType referenceObjType = { - "reference", - NULL, - NULL, - UpdateStringOfReference, - JIM_TYPE_REFERENCES, -}; - -void UpdateStringOfReference(struct Jim_Obj *objPtr) -{ - int len; - char buf[JIM_REFERENCE_SPACE + 1]; - Jim_Reference *refPtr; - - refPtr = objPtr->internalRep.refValue.refPtr; - len = JimFormatReference(buf, refPtr, objPtr->internalRep.refValue.id); - objPtr->bytes = Jim_Alloc(len + 1); - memcpy(objPtr->bytes, buf, len + 1); - objPtr->length = len; -} - -/* returns true if 'c' is a valid reference tag character. - * i.e. inside the range [_a-zA-Z0-9] */ -static int isrefchar(int c) -{ - if (c == '_' || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || - (c >= '0' && c <= '9')) return 1; - return 0; -} - -int SetReferenceFromAny(Jim_Interp *interp, Jim_Obj *objPtr) -{ - jim_wide wideValue; - int i, len; - const char *str, *start, *end; - char refId[21]; - Jim_Reference *refPtr; - Jim_HashEntry *he; - - /* Get the string representation */ - str = Jim_GetString(objPtr, &len); - /* Check if it looks like a reference */ - if (len < JIM_REFERENCE_SPACE) goto badformat; - /* Trim spaces */ - start = str; - end = str + len-1; - while (*start == ' ') start++; - while (*end == ' ' && end > start) end--; - if (end-start + 1 != JIM_REFERENCE_SPACE) goto badformat; - /* <reference.<1234567>.%020> */ - if (memcmp(start, "<reference.<", 12) != 0) goto badformat; - if (start[12 + JIM_REFERENCE_TAGLEN] != '>' || end[0] != '>') goto badformat; - /* The tag can't contain chars other than a-zA-Z0-9 + '_'. */ - for (i = 0; i < JIM_REFERENCE_TAGLEN; i++) { - if (!isrefchar(start[12 + i])) goto badformat; - } - /* Extract info from the refernece. */ - memcpy(refId, start + 14 + JIM_REFERENCE_TAGLEN, 20); - refId[20] = '\0'; - /* Try to convert the ID into a jim_wide */ - if (Jim_StringToWide(refId, &wideValue, 10) != JIM_OK) goto badformat; - /* Check if the reference really exists! */ - he = Jim_FindHashEntry(&interp->references, &wideValue); - if (he == NULL) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "Invalid reference ID \"", str, "\"", NULL); - return JIM_ERR; - } - refPtr = he->val; - /* Free the old internal repr and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &referenceObjType; - objPtr->internalRep.refValue.id = wideValue; - objPtr->internalRep.refValue.refPtr = refPtr; - return JIM_OK; - -badformat: - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "expected reference but got \"", str, "\"", NULL); - return JIM_ERR; -} - -/* Returns a new reference pointing to objPtr, having cmdNamePtr - * as finalizer command (or NULL if there is no finalizer). - * The returned reference object has refcount = 0. */ -Jim_Obj *Jim_NewReference(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj *tagPtr, - Jim_Obj *cmdNamePtr) -{ - struct Jim_Reference *refPtr; - jim_wide wideValue = interp->referenceNextId; - Jim_Obj *refObjPtr; - const char *tag; - int tagLen, i; - - /* Perform the Garbage Collection if needed. */ - Jim_CollectIfNeeded(interp); - - refPtr = Jim_Alloc(sizeof(*refPtr)); - refPtr->objPtr = objPtr; - Jim_IncrRefCount(objPtr); - refPtr->finalizerCmdNamePtr = cmdNamePtr; - if (cmdNamePtr) - Jim_IncrRefCount(cmdNamePtr); - Jim_AddHashEntry(&interp->references, &wideValue, refPtr); - refObjPtr = Jim_NewObj(interp); - refObjPtr->typePtr = &referenceObjType; - refObjPtr->bytes = NULL; - refObjPtr->internalRep.refValue.id = interp->referenceNextId; - refObjPtr->internalRep.refValue.refPtr = refPtr; - interp->referenceNextId++; - /* Set the tag. Trimmered at JIM_REFERENCE_TAGLEN. Everything - * that does not pass the 'isrefchar' test is replaced with '_' */ - tag = Jim_GetString(tagPtr, &tagLen); - if (tagLen > JIM_REFERENCE_TAGLEN) - tagLen = JIM_REFERENCE_TAGLEN; - for (i = 0; i < JIM_REFERENCE_TAGLEN; i++) { - if (i < tagLen) - refPtr->tag[i] = tag[i]; - else - refPtr->tag[i] = '_'; - } - refPtr->tag[JIM_REFERENCE_TAGLEN] = '\0'; - return refObjPtr; -} - -Jim_Reference *Jim_GetReference(Jim_Interp *interp, Jim_Obj *objPtr) -{ - if (objPtr->typePtr != &referenceObjType && - SetReferenceFromAny(interp, objPtr) == JIM_ERR) - return NULL; - return objPtr->internalRep.refValue.refPtr; -} - -int Jim_SetFinalizer(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj *cmdNamePtr) -{ - Jim_Reference *refPtr; - - if ((refPtr = Jim_GetReference(interp, objPtr)) == NULL) - return JIM_ERR; - Jim_IncrRefCount(cmdNamePtr); - if (refPtr->finalizerCmdNamePtr) - Jim_DecrRefCount(interp, refPtr->finalizerCmdNamePtr); - refPtr->finalizerCmdNamePtr = cmdNamePtr; - return JIM_OK; -} - -int Jim_GetFinalizer(Jim_Interp *interp, Jim_Obj *objPtr, Jim_Obj **cmdNamePtrPtr) -{ - Jim_Reference *refPtr; - - if ((refPtr = Jim_GetReference(interp, objPtr)) == NULL) - return JIM_ERR; - *cmdNamePtrPtr = refPtr->finalizerCmdNamePtr; - return JIM_OK; -} - -/* ----------------------------------------------------------------------------- - * References Garbage Collection - * ---------------------------------------------------------------------------*/ - -/* This the hash table type for the "MARK" phase of the GC */ -static Jim_HashTableType JimRefMarkHashTableType = { - JimReferencesHTHashFunction, /* hash function */ - JimReferencesHTKeyDup, /* key dup */ - NULL, /* val dup */ - JimReferencesHTKeyCompare, /* key compare */ - JimReferencesHTKeyDestructor, /* key destructor */ - NULL /* val destructor */ -}; - -/* #define JIM_DEBUG_GC 1 */ - -/* Performs the garbage collection. */ -int Jim_Collect(Jim_Interp *interp) -{ - Jim_HashTable marks; - Jim_HashTableIterator *htiter; - Jim_HashEntry *he; - Jim_Obj *objPtr; - int collected = 0; - - /* Avoid recursive calls */ - if (interp->lastCollectId == -1) { - /* Jim_Collect() already running. Return just now. */ - return 0; - } - interp->lastCollectId = -1; - - /* Mark all the references found into the 'mark' hash table. - * The references are searched in every live object that - * is of a type that can contain references. */ - Jim_InitHashTable(&marks, &JimRefMarkHashTableType, NULL); - objPtr = interp->liveList; - while (objPtr) { - if (objPtr->typePtr == NULL || - objPtr->typePtr->flags & JIM_TYPE_REFERENCES) { - const char *str, *p; - int len; - - /* If the object is of type reference, to get the - * Id is simple... */ - if (objPtr->typePtr == &referenceObjType) { - Jim_AddHashEntry(&marks, - &objPtr->internalRep.refValue.id, NULL); -#ifdef JIM_DEBUG_GC - Jim_fprintf(interp,interp->cookie_stdout, - "MARK (reference): %d refcount: %d" JIM_NL, - (int) objPtr->internalRep.refValue.id, - objPtr->refCount); -#endif - objPtr = objPtr->nextObjPtr; - continue; - } - /* Get the string repr of the object we want - * to scan for references. */ - p = str = Jim_GetString(objPtr, &len); - /* Skip objects too little to contain references. */ - if (len < JIM_REFERENCE_SPACE) { - objPtr = objPtr->nextObjPtr; - continue; - } - /* Extract references from the object string repr. */ - while (1) { - int i; - jim_wide id; - char buf[21]; - - if ((p = strstr(p, "<reference.<")) == NULL) - break; - /* Check if it's a valid reference. */ - if (len-(p-str) < JIM_REFERENCE_SPACE) break; - if (p[41] != '>' || p[19] != '>' || p[20] != '.') break; - for (i = 21; i <= 40; i++) - if (!isdigit((int)p[i])) - break; - /* Get the ID */ - memcpy(buf, p + 21, 20); - buf[20] = '\0'; - Jim_StringToWide(buf, &id, 10); - - /* Ok, a reference for the given ID - * was found. Mark it. */ - Jim_AddHashEntry(&marks, &id, NULL); -#ifdef JIM_DEBUG_GC - Jim_fprintf(interp,interp->cookie_stdout,"MARK: %d" JIM_NL, (int)id); -#endif - p += JIM_REFERENCE_SPACE; - } - } - objPtr = objPtr->nextObjPtr; - } - - /* Run the references hash table to destroy every reference that - * is not referenced outside (not present in the mark HT). */ - htiter = Jim_GetHashTableIterator(&interp->references); - while ((he = Jim_NextHashEntry(htiter)) != NULL) { - const jim_wide *refId; - Jim_Reference *refPtr; - - refId = he->key; - /* Check if in the mark phase we encountered - * this reference. */ - if (Jim_FindHashEntry(&marks, refId) == NULL) { -#ifdef JIM_DEBUG_GC - Jim_fprintf(interp,interp->cookie_stdout,"COLLECTING %d" JIM_NL, (int)*refId); -#endif - collected++; - /* Drop the reference, but call the - * finalizer first if registered. */ - refPtr = he->val; - if (refPtr->finalizerCmdNamePtr) { - char *refstr = Jim_Alloc(JIM_REFERENCE_SPACE + 1); - Jim_Obj *objv[3], *oldResult; - - JimFormatReference(refstr, refPtr, *refId); - - objv[0] = refPtr->finalizerCmdNamePtr; - objv[1] = Jim_NewStringObjNoAlloc(interp, - refstr, 32); - objv[2] = refPtr->objPtr; - Jim_IncrRefCount(objv[0]); - Jim_IncrRefCount(objv[1]); - Jim_IncrRefCount(objv[2]); - - /* Drop the reference itself */ - Jim_DeleteHashEntry(&interp->references, refId); - - /* Call the finalizer. Errors ignored. */ - oldResult = interp->result; - Jim_IncrRefCount(oldResult); - Jim_EvalObjVector(interp, 3, objv); - Jim_SetResult(interp, oldResult); - Jim_DecrRefCount(interp, oldResult); - - Jim_DecrRefCount(interp, objv[0]); - Jim_DecrRefCount(interp, objv[1]); - Jim_DecrRefCount(interp, objv[2]); - } else { - Jim_DeleteHashEntry(&interp->references, refId); - } - } - } - Jim_FreeHashTableIterator(htiter); - Jim_FreeHashTable(&marks); - interp->lastCollectId = interp->referenceNextId; - interp->lastCollectTime = time(NULL); - return collected; -} - -#define JIM_COLLECT_ID_PERIOD 5000 -#define JIM_COLLECT_TIME_PERIOD 300 - -void Jim_CollectIfNeeded(Jim_Interp *interp) -{ - jim_wide elapsedId; - int elapsedTime; - - elapsedId = interp->referenceNextId - interp->lastCollectId; - elapsedTime = time(NULL) - interp->lastCollectTime; - - - if (elapsedId > JIM_COLLECT_ID_PERIOD || - elapsedTime > JIM_COLLECT_TIME_PERIOD) { - Jim_Collect(interp); - } -} - -/* ----------------------------------------------------------------------------- - * Interpreter related functions - * ---------------------------------------------------------------------------*/ - -Jim_Interp *Jim_CreateInterp(void) -{ - Jim_Interp *i = Jim_Alloc(sizeof(*i)); - Jim_Obj *pathPtr; - - i->errorLine = 0; - i->errorFileName = Jim_StrDup(""); - i->numLevels = 0; - i->maxNestingDepth = JIM_MAX_NESTING_DEPTH; - i->returnCode = JIM_OK; - i->exitCode = 0; - i->procEpoch = 0; - i->callFrameEpoch = 0; - i->liveList = i->freeList = NULL; - i->scriptFileName = Jim_StrDup(""); - i->referenceNextId = 0; - i->lastCollectId = 0; - i->lastCollectTime = time(NULL); - i->freeFramesList = NULL; - i->prngState = NULL; - i->evalRetcodeLevel = -1; - i->cookie_stdin = stdin; - i->cookie_stdout = stdout; - i->cookie_stderr = stderr; - i->cb_fwrite = ((size_t (*)(const void *, size_t, size_t, void *))(fwrite)); - i->cb_fread = ((size_t (*)(void *, size_t, size_t, void *))(fread)); - i->cb_vfprintf = ((int (*)(void *, const char *fmt, va_list))(vfprintf)); - i->cb_fflush = ((int (*)(void *))(fflush)); - i->cb_fgets = ((char * (*)(char *, int, void *))(fgets)); - - /* Note that we can create objects only after the - * interpreter liveList and freeList pointers are - * initialized to NULL. */ - Jim_InitHashTable(&i->commands, &JimCommandsHashTableType, i); - Jim_InitHashTable(&i->references, &JimReferencesHashTableType, i); - Jim_InitHashTable(&i->sharedStrings, &JimSharedStringsHashTableType, - NULL); - Jim_InitHashTable(&i->stub, &JimStringCopyHashTableType, NULL); - Jim_InitHashTable(&i->assocData, &JimAssocDataHashTableType, i); - Jim_InitHashTable(&i->packages, &JimStringKeyValCopyHashTableType, NULL); - i->framePtr = i->topFramePtr = JimCreateCallFrame(i); - i->emptyObj = Jim_NewEmptyStringObj(i); - i->result = i->emptyObj; - i->stackTrace = Jim_NewListObj(i, NULL, 0); - i->unknown = Jim_NewStringObj(i, "unknown", -1); - i->unknown_called = 0; - Jim_IncrRefCount(i->emptyObj); - Jim_IncrRefCount(i->result); - Jim_IncrRefCount(i->stackTrace); - Jim_IncrRefCount(i->unknown); - - /* Initialize key variables every interpreter should contain */ - pathPtr = Jim_NewStringObj(i, "./", -1); - Jim_SetVariableStr(i, "jim_libpath", pathPtr); - Jim_SetVariableStrWithStr(i, "jim_interactive", "0"); - - /* Export the core API to extensions */ - JimRegisterCoreApi(i); - return i; -} - -/* This is the only function Jim exports directly without - * to use the STUB system. It is only used by embedders - * in order to get an interpreter with the Jim API pointers - * registered. */ -Jim_Interp *ExportedJimCreateInterp(void) -{ - return Jim_CreateInterp(); -} - -void Jim_FreeInterp(Jim_Interp *i) -{ - Jim_CallFrame *cf = i->framePtr, *prevcf, *nextcf; - Jim_Obj *objPtr, *nextObjPtr; - - Jim_DecrRefCount(i, i->emptyObj); - Jim_DecrRefCount(i, i->result); - Jim_DecrRefCount(i, i->stackTrace); - Jim_DecrRefCount(i, i->unknown); - Jim_Free((void*)i->errorFileName); - Jim_Free((void*)i->scriptFileName); - Jim_FreeHashTable(&i->commands); - Jim_FreeHashTable(&i->references); - Jim_FreeHashTable(&i->stub); - Jim_FreeHashTable(&i->assocData); - Jim_FreeHashTable(&i->packages); - Jim_Free(i->prngState); - /* Free the call frames list */ - while (cf) { - prevcf = cf->parentCallFrame; - JimFreeCallFrame(i, cf, JIM_FCF_NONE); - cf = prevcf; - } - /* Check that the live object list is empty, otherwise - * there is a memory leak. */ - if (i->liveList != NULL) { - objPtr = i->liveList; - - Jim_fprintf(i, i->cookie_stdout,JIM_NL "-------------------------------------" JIM_NL); - Jim_fprintf(i, i->cookie_stdout,"Objects still in the free list:" JIM_NL); - while (objPtr) { - const char *type = objPtr->typePtr ? - objPtr->typePtr->name : ""; - Jim_fprintf(i, i->cookie_stdout,"%p \"%-10s\": '%.20s' (refCount: %d)" JIM_NL, - objPtr, type, - objPtr->bytes ? objPtr->bytes - : "(null)", objPtr->refCount); - if (objPtr->typePtr == &sourceObjType) { - Jim_fprintf(i, i->cookie_stdout, "FILE %s LINE %d" JIM_NL, - objPtr->internalRep.sourceValue.fileName, - objPtr->internalRep.sourceValue.lineNumber); - } - objPtr = objPtr->nextObjPtr; - } - Jim_fprintf(i, i->cookie_stdout, "-------------------------------------" JIM_NL JIM_NL); - Jim_Panic(i,"Live list non empty freeing the interpreter! Leak?"); - } - /* Free all the freed objects. */ - objPtr = i->freeList; - while (objPtr) { - nextObjPtr = objPtr->nextObjPtr; - Jim_Free(objPtr); - objPtr = nextObjPtr; - } - /* Free cached CallFrame structures */ - cf = i->freeFramesList; - while (cf) { - nextcf = cf->nextFramePtr; - if (cf->vars.table != NULL) - Jim_Free(cf->vars.table); - Jim_Free(cf); - cf = nextcf; - } - /* Free the sharedString hash table. Make sure to free it - * after every other Jim_Object was freed. */ - Jim_FreeHashTable(&i->sharedStrings); - /* Free the interpreter structure. */ - Jim_Free(i); -} - -/* Store the call frame relative to the level represented by - * levelObjPtr into *framePtrPtr. If levelObjPtr == NULL, the - * level is assumed to be '1'. - * - * If a newLevelptr int pointer is specified, the function stores - * the absolute level integer value of the new target callframe into - * *newLevelPtr. (this is used to adjust interp->numLevels - * in the implementation of [uplevel], so that [info level] will - * return a correct information). - * - * This function accepts the 'level' argument in the form - * of the commands [uplevel] and [upvar]. - * - * For a function accepting a relative integer as level suitable - * for implementation of [info level ?level?] check the - * GetCallFrameByInteger() function. */ -int Jim_GetCallFrameByLevel(Jim_Interp *interp, Jim_Obj *levelObjPtr, - Jim_CallFrame **framePtrPtr, int *newLevelPtr) -{ - long level; - const char *str; - Jim_CallFrame *framePtr; - - if (newLevelPtr) *newLevelPtr = interp->numLevels; - if (levelObjPtr) { - str = Jim_GetString(levelObjPtr, NULL); - if (str[0] == '#') { - char *endptr; - /* speedup for the toplevel (level #0) */ - if (str[1] == '0' && str[2] == '\0') { - if (newLevelPtr) *newLevelPtr = 0; - *framePtrPtr = interp->topFramePtr; - return JIM_OK; - } - - level = strtol(str + 1, &endptr, 0); - if (str[1] == '\0' || endptr[0] != '\0' || level < 0) - goto badlevel; - /* An 'absolute' level is converted into the - * 'number of levels to go back' format. */ - level = interp->numLevels - level; - if (level < 0) goto badlevel; - } else { - if (Jim_GetLong(interp, levelObjPtr, &level) != JIM_OK || level < 0) - goto badlevel; - } - } else { - str = "1"; /* Needed to format the error message. */ - level = 1; - } - /* Lookup */ - framePtr = interp->framePtr; - if (newLevelPtr) *newLevelPtr = (*newLevelPtr)-level; - while (level--) { - framePtr = framePtr->parentCallFrame; - if (framePtr == NULL) goto badlevel; - } - *framePtrPtr = framePtr; - return JIM_OK; -badlevel: - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad level \"", str, "\"", NULL); - return JIM_ERR; -} - -/* Similar to Jim_GetCallFrameByLevel() but the level is specified - * as a relative integer like in the [info level ?level?] command. */ -static int JimGetCallFrameByInteger(Jim_Interp *interp, Jim_Obj *levelObjPtr, - Jim_CallFrame **framePtrPtr) -{ - jim_wide level; - jim_wide relLevel; /* level relative to the current one. */ - Jim_CallFrame *framePtr; - - if (Jim_GetWide(interp, levelObjPtr, &level) != JIM_OK) - goto badlevel; - if (level > 0) { - /* An 'absolute' level is converted into the - * 'number of levels to go back' format. */ - relLevel = interp->numLevels - level; - } else { - relLevel = -level; - } - /* Lookup */ - framePtr = interp->framePtr; - while (relLevel--) { - framePtr = framePtr->parentCallFrame; - if (framePtr == NULL) goto badlevel; - } - *framePtrPtr = framePtr; - return JIM_OK; -badlevel: - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad level \"", Jim_GetString(levelObjPtr, NULL), "\"", NULL); - return JIM_ERR; -} - -static void JimSetErrorFileName(Jim_Interp *interp, char *filename) -{ - Jim_Free((void*)interp->errorFileName); - interp->errorFileName = Jim_StrDup(filename); -} - -static void JimSetErrorLineNumber(Jim_Interp *interp, int linenr) -{ - interp->errorLine = linenr; -} - -static void JimResetStackTrace(Jim_Interp *interp) -{ - Jim_DecrRefCount(interp, interp->stackTrace); - interp->stackTrace = Jim_NewListObj(interp, NULL, 0); - Jim_IncrRefCount(interp->stackTrace); -} - -static void JimAppendStackTrace(Jim_Interp *interp, const char *procname, - const char *filename, int linenr) -{ - /* No need to add this dummy entry to the stack trace */ - if (strcmp(procname, "unknown") == 0) { - return; - } - - if (Jim_IsShared(interp->stackTrace)) { - interp->stackTrace = - Jim_DuplicateObj(interp, interp->stackTrace); - Jim_IncrRefCount(interp->stackTrace); - } - Jim_ListAppendElement(interp, interp->stackTrace, - Jim_NewStringObj(interp, procname, -1)); - Jim_ListAppendElement(interp, interp->stackTrace, - Jim_NewStringObj(interp, filename, -1)); - Jim_ListAppendElement(interp, interp->stackTrace, - Jim_NewIntObj(interp, linenr)); -} - -int Jim_SetAssocData(Jim_Interp *interp, const char *key, Jim_InterpDeleteProc *delProc, void *data) -{ - AssocDataValue *assocEntryPtr = (AssocDataValue *)Jim_Alloc(sizeof(AssocDataValue)); - assocEntryPtr->delProc = delProc; - assocEntryPtr->data = data; - return Jim_AddHashEntry(&interp->assocData, key, assocEntryPtr); -} - -void *Jim_GetAssocData(Jim_Interp *interp, const char *key) -{ - Jim_HashEntry *entryPtr = Jim_FindHashEntry(&interp->assocData, key); - if (entryPtr != NULL) { - AssocDataValue *assocEntryPtr = (AssocDataValue *)entryPtr->val; - return assocEntryPtr->data; - } - return NULL; -} - -int Jim_DeleteAssocData(Jim_Interp *interp, const char *key) -{ - return Jim_DeleteHashEntry(&interp->assocData, key); -} - -int Jim_GetExitCode(Jim_Interp *interp) { - return interp->exitCode; -} - -void *Jim_SetStdin(Jim_Interp *interp, void *fp) -{ - if (fp != NULL) interp->cookie_stdin = fp; - return interp->cookie_stdin; -} - -void *Jim_SetStdout(Jim_Interp *interp, void *fp) -{ - if (fp != NULL) interp->cookie_stdout = fp; - return interp->cookie_stdout; -} - -void *Jim_SetStderr(Jim_Interp *interp, void *fp) -{ - if (fp != NULL) interp->cookie_stderr = fp; - return interp->cookie_stderr; -} - -/* ----------------------------------------------------------------------------- - * Shared strings. - * Every interpreter has an hash table where to put shared dynamically - * allocate strings that are likely to be used a lot of times. - * For example, in the 'source' object type, there is a pointer to - * the filename associated with that object. Every script has a lot - * of this objects with the identical file name, so it is wise to share - * this info. - * - * The API is trivial: Jim_GetSharedString(interp, "foobar") - * returns the pointer to the shared string. Every time a reference - * to the string is no longer used, the user should call - * Jim_ReleaseSharedString(interp, stringPointer). Once no one is using - * a given string, it is removed from the hash table. - * ---------------------------------------------------------------------------*/ -const char *Jim_GetSharedString(Jim_Interp *interp, const char *str) -{ - Jim_HashEntry *he = Jim_FindHashEntry(&interp->sharedStrings, str); - - if (he == NULL) { - char *strCopy = Jim_StrDup(str); - - Jim_AddHashEntry(&interp->sharedStrings, strCopy, (void*)1); - return strCopy; - } else { - intptr_t refCount = (intptr_t) he->val; - - refCount++; - he->val = (void*) refCount; - return he->key; - } -} - -void Jim_ReleaseSharedString(Jim_Interp *interp, const char *str) -{ - intptr_t refCount; - Jim_HashEntry *he = Jim_FindHashEntry(&interp->sharedStrings, str); - - if (he == NULL) - Jim_Panic(interp,"Jim_ReleaseSharedString called with " - "unknown shared string '%s'", str); - refCount = (intptr_t) he->val; - refCount--; - if (refCount == 0) { - Jim_DeleteHashEntry(&interp->sharedStrings, str); - } else { - he->val = (void*) refCount; - } -} - -/* ----------------------------------------------------------------------------- - * Integer object - * ---------------------------------------------------------------------------*/ -#define JIM_INTEGER_SPACE 24 - -static void UpdateStringOfInt(struct Jim_Obj *objPtr); -static int SetIntFromAny(Jim_Interp *interp, Jim_Obj *objPtr, int flags); - -static Jim_ObjType intObjType = { - "int", - NULL, - NULL, - UpdateStringOfInt, - JIM_TYPE_NONE, -}; - -void UpdateStringOfInt(struct Jim_Obj *objPtr) -{ - int len; - char buf[JIM_INTEGER_SPACE + 1]; - - len = Jim_WideToString(buf, objPtr->internalRep.wideValue); - objPtr->bytes = Jim_Alloc(len + 1); - memcpy(objPtr->bytes, buf, len + 1); - objPtr->length = len; -} - -int SetIntFromAny(Jim_Interp *interp, Jim_Obj *objPtr, int flags) -{ - jim_wide wideValue; - const char *str; - - /* Get the string representation */ - str = Jim_GetString(objPtr, NULL); - /* Try to convert into a jim_wide */ - if (Jim_StringToWide(str, &wideValue, 0) != JIM_OK) { - if (flags & JIM_ERRMSG) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "expected integer but got \"", str, "\"", NULL); - } - return JIM_ERR; - } - if ((wideValue == JIM_WIDE_MIN || wideValue == JIM_WIDE_MAX) && - errno == ERANGE) { - Jim_SetResultString(interp, - "Integer value too big to be represented", -1); - return JIM_ERR; - } - /* Free the old internal repr and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &intObjType; - objPtr->internalRep.wideValue = wideValue; - return JIM_OK; -} - -int Jim_GetWide(Jim_Interp *interp, Jim_Obj *objPtr, jim_wide *widePtr) -{ - if (objPtr->typePtr != &intObjType && - SetIntFromAny(interp, objPtr, JIM_ERRMSG) == JIM_ERR) - return JIM_ERR; - *widePtr = objPtr->internalRep.wideValue; - return JIM_OK; -} - -/* Get a wide but does not set an error if the format is bad. */ -static int JimGetWideNoErr(Jim_Interp *interp, Jim_Obj *objPtr, - jim_wide *widePtr) -{ - if (objPtr->typePtr != &intObjType && - SetIntFromAny(interp, objPtr, JIM_NONE) == JIM_ERR) - return JIM_ERR; - *widePtr = objPtr->internalRep.wideValue; - return JIM_OK; -} - -int Jim_GetLong(Jim_Interp *interp, Jim_Obj *objPtr, long *longPtr) -{ - jim_wide wideValue; - int retval; - - retval = Jim_GetWide(interp, objPtr, &wideValue); - if (retval == JIM_OK) { - *longPtr = (long) wideValue; - return JIM_OK; - } - return JIM_ERR; -} - -void Jim_SetWide(Jim_Interp *interp, Jim_Obj *objPtr, jim_wide wideValue) -{ - if (Jim_IsShared(objPtr)) - Jim_Panic(interp,"Jim_SetWide called with shared object"); - if (objPtr->typePtr != &intObjType) { - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &intObjType; - } - Jim_InvalidateStringRep(objPtr); - objPtr->internalRep.wideValue = wideValue; -} - -Jim_Obj *Jim_NewIntObj(Jim_Interp *interp, jim_wide wideValue) -{ - Jim_Obj *objPtr; - - objPtr = Jim_NewObj(interp); - objPtr->typePtr = &intObjType; - objPtr->bytes = NULL; - objPtr->internalRep.wideValue = wideValue; - return objPtr; -} - -/* ----------------------------------------------------------------------------- - * Double object - * ---------------------------------------------------------------------------*/ -#define JIM_DOUBLE_SPACE 30 - -static void UpdateStringOfDouble(struct Jim_Obj *objPtr); -static int SetDoubleFromAny(Jim_Interp *interp, Jim_Obj *objPtr); - -static Jim_ObjType doubleObjType = { - "double", - NULL, - NULL, - UpdateStringOfDouble, - JIM_TYPE_NONE, -}; - -void UpdateStringOfDouble(struct Jim_Obj *objPtr) -{ - int len; - char buf[JIM_DOUBLE_SPACE + 1]; - - len = Jim_DoubleToString(buf, objPtr->internalRep.doubleValue); - objPtr->bytes = Jim_Alloc(len + 1); - memcpy(objPtr->bytes, buf, len + 1); - objPtr->length = len; -} - -int SetDoubleFromAny(Jim_Interp *interp, Jim_Obj *objPtr) -{ - double doubleValue; - const char *str; - - /* Get the string representation */ - str = Jim_GetString(objPtr, NULL); - /* Try to convert into a double */ - if (Jim_StringToDouble(str, &doubleValue) != JIM_OK) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "expected number but got '", str, "'", NULL); - return JIM_ERR; - } - /* Free the old internal repr and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &doubleObjType; - objPtr->internalRep.doubleValue = doubleValue; - return JIM_OK; -} - -int Jim_GetDouble(Jim_Interp *interp, Jim_Obj *objPtr, double *doublePtr) -{ - if (objPtr->typePtr != &doubleObjType && - SetDoubleFromAny(interp, objPtr) == JIM_ERR) - return JIM_ERR; - *doublePtr = objPtr->internalRep.doubleValue; - return JIM_OK; -} - -void Jim_SetDouble(Jim_Interp *interp, Jim_Obj *objPtr, double doubleValue) -{ - if (Jim_IsShared(objPtr)) - Jim_Panic(interp,"Jim_SetDouble called with shared object"); - if (objPtr->typePtr != &doubleObjType) { - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &doubleObjType; - } - Jim_InvalidateStringRep(objPtr); - objPtr->internalRep.doubleValue = doubleValue; -} - -Jim_Obj *Jim_NewDoubleObj(Jim_Interp *interp, double doubleValue) -{ - Jim_Obj *objPtr; - - objPtr = Jim_NewObj(interp); - objPtr->typePtr = &doubleObjType; - objPtr->bytes = NULL; - objPtr->internalRep.doubleValue = doubleValue; - return objPtr; -} - -/* ----------------------------------------------------------------------------- - * List object - * ---------------------------------------------------------------------------*/ -static void ListAppendElement(Jim_Obj *listPtr, Jim_Obj *objPtr); -static void FreeListInternalRep(Jim_Interp *interp, Jim_Obj *objPtr); -static void DupListInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr); -static void UpdateStringOfList(struct Jim_Obj *objPtr); -static int SetListFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr); - -/* Note that while the elements of the list may contain references, - * the list object itself can't. This basically means that the - * list object string representation as a whole can't contain references - * that are not presents in the single elements. */ -static Jim_ObjType listObjType = { - "list", - FreeListInternalRep, - DupListInternalRep, - UpdateStringOfList, - JIM_TYPE_NONE, -}; - -void FreeListInternalRep(Jim_Interp *interp, Jim_Obj *objPtr) -{ - int i; - - for (i = 0; i < objPtr->internalRep.listValue.len; i++) { - Jim_DecrRefCount(interp, objPtr->internalRep.listValue.ele[i]); - } - Jim_Free(objPtr->internalRep.listValue.ele); -} - -void DupListInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr) -{ - int i; - JIM_NOTUSED(interp); - - dupPtr->internalRep.listValue.len = srcPtr->internalRep.listValue.len; - dupPtr->internalRep.listValue.maxLen = srcPtr->internalRep.listValue.maxLen; - dupPtr->internalRep.listValue.ele = - Jim_Alloc(sizeof(Jim_Obj*)*srcPtr->internalRep.listValue.maxLen); - memcpy(dupPtr->internalRep.listValue.ele, srcPtr->internalRep.listValue.ele, - sizeof(Jim_Obj*)*srcPtr->internalRep.listValue.len); - for (i = 0; i < dupPtr->internalRep.listValue.len; i++) { - Jim_IncrRefCount(dupPtr->internalRep.listValue.ele[i]); - } - dupPtr->typePtr = &listObjType; -} - -/* The following function checks if a given string can be encoded - * into a list element without any kind of quoting, surrounded by braces, - * or using escapes to quote. */ -#define JIM_ELESTR_SIMPLE 0 -#define JIM_ELESTR_BRACE 1 -#define JIM_ELESTR_QUOTE 2 -static int ListElementQuotingType(const char *s, int len) -{ - int i, level, trySimple = 1; - - /* Try with the SIMPLE case */ - if (len == 0) return JIM_ELESTR_BRACE; - if (s[0] == '"' || s[0] == '{') { - trySimple = 0; - goto testbrace; - } - for (i = 0; i < len; i++) { - switch (s[i]) { - case ' ': - case '$': - case '"': - case '[': - case ']': - case ';': - case '\\': - case '\r': - case '\n': - case '\t': - case '\f': - case '\v': - trySimple = 0; - case '{': - case '}': - goto testbrace; - } - } - return JIM_ELESTR_SIMPLE; - -testbrace: - /* Test if it's possible to do with braces */ - if (s[len-1] == '\\' || - s[len-1] == ']') return JIM_ELESTR_QUOTE; - level = 0; - for (i = 0; i < len; i++) { - switch (s[i]) { - case '{': level++; break; - case '}': level--; - if (level < 0) return JIM_ELESTR_QUOTE; - break; - case '\\': - if (s[i + 1] == '\n') - return JIM_ELESTR_QUOTE; - else - if (s[i + 1] != '\0') i++; - break; - } - } - if (level == 0) { - if (!trySimple) return JIM_ELESTR_BRACE; - for (i = 0; i < len; i++) { - switch (s[i]) { - case ' ': - case '$': - case '"': - case '[': - case ']': - case ';': - case '\\': - case '\r': - case '\n': - case '\t': - case '\f': - case '\v': - return JIM_ELESTR_BRACE; - break; - } - } - return JIM_ELESTR_SIMPLE; - } - return JIM_ELESTR_QUOTE; -} - -/* Returns the malloc-ed representation of a string - * using backslash to quote special chars. */ -char *BackslashQuoteString(const char *s, int len, int *qlenPtr) -{ - char *q = Jim_Alloc(len*2 + 1), *p; - - p = q; - while (*s) { - switch (*s) { - case ' ': - case '$': - case '"': - case '[': - case ']': - case '{': - case '}': - case ';': - case '\\': - *p++ = '\\'; - *p++ = *s++; - break; - case '\n': *p++ = '\\'; *p++ = 'n'; s++; break; - case '\r': *p++ = '\\'; *p++ = 'r'; s++; break; - case '\t': *p++ = '\\'; *p++ = 't'; s++; break; - case '\f': *p++ = '\\'; *p++ = 'f'; s++; break; - case '\v': *p++ = '\\'; *p++ = 'v'; s++; break; - default: - *p++ = *s++; - break; - } - } - *p = '\0'; - *qlenPtr = p-q; - return q; -} - -void UpdateStringOfList(struct Jim_Obj *objPtr) -{ - int i, bufLen, realLength; - const char *strRep; - char *p; - int *quotingType; - Jim_Obj **ele = objPtr->internalRep.listValue.ele; - - /* (Over) Estimate the space needed. */ - quotingType = Jim_Alloc(sizeof(int)*objPtr->internalRep.listValue.len + 1); - bufLen = 0; - for (i = 0; i < objPtr->internalRep.listValue.len; i++) { - int len; - - strRep = Jim_GetString(ele[i], &len); - quotingType[i] = ListElementQuotingType(strRep, len); - switch (quotingType[i]) { - case JIM_ELESTR_SIMPLE: bufLen += len; break; - case JIM_ELESTR_BRACE: bufLen += len + 2; break; - case JIM_ELESTR_QUOTE: bufLen += len*2; break; - } - bufLen++; /* elements separator. */ - } - bufLen++; - - /* Generate the string rep. */ - p = objPtr->bytes = Jim_Alloc(bufLen + 1); - realLength = 0; - for (i = 0; i < objPtr->internalRep.listValue.len; i++) { - int len, qlen; - strRep = Jim_GetString(ele[i], &len); - char *q; - - switch (quotingType[i]) { - case JIM_ELESTR_SIMPLE: - memcpy(p, strRep, len); - p += len; - realLength += len; - break; - case JIM_ELESTR_BRACE: - *p++ = '{'; - memcpy(p, strRep, len); - p += len; - *p++ = '}'; - realLength += len + 2; - break; - case JIM_ELESTR_QUOTE: - q = BackslashQuoteString(strRep, len, &qlen); - memcpy(p, q, qlen); - Jim_Free(q); - p += qlen; - realLength += qlen; - break; - } - /* Add a separating space */ - if (i + 1 != objPtr->internalRep.listValue.len) { - *p++ = ' '; - realLength ++; - } - } - *p = '\0'; /* nul term. */ - objPtr->length = realLength; - Jim_Free(quotingType); -} - -int SetListFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr) -{ - struct JimParserCtx parser; - const char *str; - int strLen; - - /* Get the string representation */ - str = Jim_GetString(objPtr, &strLen); - - /* Free the old internal repr just now and initialize the - * new one just now. The string->list conversion can't fail. */ - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &listObjType; - objPtr->internalRep.listValue.len = 0; - objPtr->internalRep.listValue.maxLen = 0; - objPtr->internalRep.listValue.ele = NULL; - - /* Convert into a list */ - JimParserInit(&parser, str, strLen, 1); - while (!JimParserEof(&parser)) { - char *token; - int tokenLen, type; - Jim_Obj *elementPtr; - - JimParseList(&parser); - if (JimParserTtype(&parser) != JIM_TT_STR && - JimParserTtype(&parser) != JIM_TT_ESC) - continue; - token = JimParserGetToken(&parser, &tokenLen, &type, NULL); - elementPtr = Jim_NewStringObjNoAlloc(interp, token, tokenLen); - ListAppendElement(objPtr, elementPtr); - } - return JIM_OK; -} - -Jim_Obj *Jim_NewListObj(Jim_Interp *interp, Jim_Obj *const *elements, - int len) -{ - Jim_Obj *objPtr; - int i; - - objPtr = Jim_NewObj(interp); - objPtr->typePtr = &listObjType; - objPtr->bytes = NULL; - objPtr->internalRep.listValue.ele = NULL; - objPtr->internalRep.listValue.len = 0; - objPtr->internalRep.listValue.maxLen = 0; - for (i = 0; i < len; i++) { - ListAppendElement(objPtr, elements[i]); - } - return objPtr; -} - -/* Return a vector of Jim_Obj with the elements of a Jim list, and the - * length of the vector. Note that the user of this function should make - * sure that the list object can't shimmer while the vector returned - * is in use, this vector is the one stored inside the internal representation - * of the list object. This function is not exported, extensions should - * always access to the List object elements using Jim_ListIndex(). */ -static void JimListGetElements(Jim_Interp *interp, Jim_Obj *listObj, int *argc, - Jim_Obj ***listVec) -{ - Jim_ListLength(interp, listObj, argc); - assert(listObj->typePtr == &listObjType); - *listVec = listObj->internalRep.listValue.ele; -} - -/* ListSortElements type values */ -enum {JIM_LSORT_ASCII, JIM_LSORT_NOCASE, JIM_LSORT_ASCII_DECR, - JIM_LSORT_NOCASE_DECR}; - -/* Sort the internal rep of a list. */ -static int ListSortString(Jim_Obj **lhsObj, Jim_Obj **rhsObj) -{ - return Jim_StringCompareObj(*lhsObj, *rhsObj, 0); -} - -static int ListSortStringDecr(Jim_Obj **lhsObj, Jim_Obj **rhsObj) -{ - return Jim_StringCompareObj(*lhsObj, *rhsObj, 0) * -1; -} - -static int ListSortStringNoCase(Jim_Obj **lhsObj, Jim_Obj **rhsObj) -{ - return Jim_StringCompareObj(*lhsObj, *rhsObj, 1); -} - -static int ListSortStringNoCaseDecr(Jim_Obj **lhsObj, Jim_Obj **rhsObj) -{ - return Jim_StringCompareObj(*lhsObj, *rhsObj, 1) * -1; -} - -/* Sort a list *in place*. MUST be called with non-shared objects. */ -static void ListSortElements(Jim_Interp *interp, Jim_Obj *listObjPtr, int type) -{ - typedef int (qsort_comparator)(const void *, const void *); - int (*fn)(Jim_Obj**, Jim_Obj**); - Jim_Obj **vector; - int len; - - if (Jim_IsShared(listObjPtr)) - Jim_Panic(interp,"Jim_ListSortElements called with shared object"); - if (listObjPtr->typePtr != &listObjType) - SetListFromAny(interp, listObjPtr); - - vector = listObjPtr->internalRep.listValue.ele; - len = listObjPtr->internalRep.listValue.len; - switch (type) { - case JIM_LSORT_ASCII: fn = ListSortString; break; - case JIM_LSORT_NOCASE: fn = ListSortStringNoCase; break; - case JIM_LSORT_ASCII_DECR: fn = ListSortStringDecr; break; - case JIM_LSORT_NOCASE_DECR: fn = ListSortStringNoCaseDecr; break; - default: - fn = NULL; /* avoid warning */ - Jim_Panic(interp,"ListSort called with invalid sort type"); - } - qsort(vector, len, sizeof(Jim_Obj *), (qsort_comparator *)fn); - Jim_InvalidateStringRep(listObjPtr); -} - -/* This is the low-level function to append an element to a list. - * The higher-level Jim_ListAppendElement() performs shared object - * check and invalidate the string repr. This version is used - * in the internals of the List Object and is not exported. - * - * NOTE: this function can be called only against objects - * with internal type of List. */ -void ListAppendElement(Jim_Obj *listPtr, Jim_Obj *objPtr) -{ - int requiredLen = listPtr->internalRep.listValue.len + 1; - - if (requiredLen > listPtr->internalRep.listValue.maxLen) { - int maxLen = requiredLen * 2; - - listPtr->internalRep.listValue.ele = - Jim_Realloc(listPtr->internalRep.listValue.ele, - sizeof(Jim_Obj*)*maxLen); - listPtr->internalRep.listValue.maxLen = maxLen; - } - listPtr->internalRep.listValue.ele[listPtr->internalRep.listValue.len] = - objPtr; - listPtr->internalRep.listValue.len ++; - Jim_IncrRefCount(objPtr); -} - -/* This is the low-level function to insert elements into a list. - * The higher-level Jim_ListInsertElements() performs shared object - * check and invalidate the string repr. This version is used - * in the internals of the List Object and is not exported. - * - * NOTE: this function can be called only against objects - * with internal type of List. */ -void ListInsertElements(Jim_Obj *listPtr, int index_t, int elemc, - Jim_Obj *const *elemVec) -{ - int currentLen = listPtr->internalRep.listValue.len; - int requiredLen = currentLen + elemc; - int i; - Jim_Obj **point; - - if (requiredLen > listPtr->internalRep.listValue.maxLen) { - int maxLen = requiredLen * 2; - - listPtr->internalRep.listValue.ele = - Jim_Realloc(listPtr->internalRep.listValue.ele, - sizeof(Jim_Obj*)*maxLen); - listPtr->internalRep.listValue.maxLen = maxLen; - } - point = listPtr->internalRep.listValue.ele + index_t; - memmove(point + elemc, point, (currentLen-index_t) * sizeof(Jim_Obj*)); - for (i = 0; i < elemc; ++i) { - point[i] = elemVec[i]; - Jim_IncrRefCount(point[i]); - } - listPtr->internalRep.listValue.len += elemc; -} - -/* Appends every element of appendListPtr into listPtr. - * Both have to be of the list type. */ -void ListAppendList(Jim_Obj *listPtr, Jim_Obj *appendListPtr) -{ - int i, oldLen = listPtr->internalRep.listValue.len; - int appendLen = appendListPtr->internalRep.listValue.len; - int requiredLen = oldLen + appendLen; - - if (requiredLen > listPtr->internalRep.listValue.maxLen) { - int maxLen = requiredLen * 2; - - listPtr->internalRep.listValue.ele = - Jim_Realloc(listPtr->internalRep.listValue.ele, - sizeof(Jim_Obj*)*maxLen); - listPtr->internalRep.listValue.maxLen = maxLen; - } - for (i = 0; i < appendLen; i++) { - Jim_Obj *objPtr = appendListPtr->internalRep.listValue.ele[i]; - listPtr->internalRep.listValue.ele[oldLen + i] = objPtr; - Jim_IncrRefCount(objPtr); - } - listPtr->internalRep.listValue.len += appendLen; -} - -void Jim_ListAppendElement(Jim_Interp *interp, Jim_Obj *listPtr, Jim_Obj *objPtr) -{ - if (Jim_IsShared(listPtr)) - Jim_Panic(interp,"Jim_ListAppendElement called with shared object"); - if (listPtr->typePtr != &listObjType) - SetListFromAny(interp, listPtr); - Jim_InvalidateStringRep(listPtr); - ListAppendElement(listPtr, objPtr); -} - -void Jim_ListAppendList(Jim_Interp *interp, Jim_Obj *listPtr, Jim_Obj *appendListPtr) -{ - if (Jim_IsShared(listPtr)) - Jim_Panic(interp,"Jim_ListAppendList called with shared object"); - if (listPtr->typePtr != &listObjType) - SetListFromAny(interp, listPtr); - Jim_InvalidateStringRep(listPtr); - ListAppendList(listPtr, appendListPtr); -} - -void Jim_ListLength(Jim_Interp *interp, Jim_Obj *listPtr, int *intPtr) -{ - if (listPtr->typePtr != &listObjType) - SetListFromAny(interp, listPtr); - *intPtr = listPtr->internalRep.listValue.len; -} - -void Jim_ListInsertElements(Jim_Interp *interp, Jim_Obj *listPtr, int index_t, - int objc, Jim_Obj *const *objVec) -{ - if (Jim_IsShared(listPtr)) - Jim_Panic(interp,"Jim_ListInsertElement called with shared object"); - if (listPtr->typePtr != &listObjType) - SetListFromAny(interp, listPtr); - if (index_t >= 0 && index_t > listPtr->internalRep.listValue.len) - index_t = listPtr->internalRep.listValue.len; - else if (index_t < 0) - index_t = 0; - Jim_InvalidateStringRep(listPtr); - ListInsertElements(listPtr, index_t, objc, objVec); -} - -int Jim_ListIndex(Jim_Interp *interp, Jim_Obj *listPtr, int index_t, - Jim_Obj **objPtrPtr, int flags) -{ - if (listPtr->typePtr != &listObjType) - SetListFromAny(interp, listPtr); - if ((index_t >= 0 && index_t >= listPtr->internalRep.listValue.len) || - (index_t < 0 && (-index_t-1) >= listPtr->internalRep.listValue.len)) { - if (flags & JIM_ERRMSG) { - Jim_SetResultString(interp, - "list index out of range", -1); - } - return JIM_ERR; - } - if (index_t < 0) - index_t = listPtr->internalRep.listValue.len + index_t; - *objPtrPtr = listPtr->internalRep.listValue.ele[index_t]; - return JIM_OK; -} - -static int ListSetIndex(Jim_Interp *interp, Jim_Obj *listPtr, int index_t, - Jim_Obj *newObjPtr, int flags) -{ - if (listPtr->typePtr != &listObjType) - SetListFromAny(interp, listPtr); - if ((index_t >= 0 && index_t >= listPtr->internalRep.listValue.len) || - (index_t < 0 && (-index_t-1) >= listPtr->internalRep.listValue.len)) { - if (flags & JIM_ERRMSG) { - Jim_SetResultString(interp, - "list index_t out of range", -1); - } - return JIM_ERR; - } - if (index_t < 0) - index_t = listPtr->internalRep.listValue.len + index_t; - Jim_DecrRefCount(interp, listPtr->internalRep.listValue.ele[index_t]); - listPtr->internalRep.listValue.ele[index_t] = newObjPtr; - Jim_IncrRefCount(newObjPtr); - return JIM_OK; -} - -/* Modify the list stored into the variable named 'varNamePtr' - * setting the element specified by the 'indexc' indexes objects in 'indexv', - * with the new element 'newObjptr'. */ -int Jim_SetListIndex(Jim_Interp *interp, Jim_Obj *varNamePtr, - Jim_Obj *const *indexv, int indexc, Jim_Obj *newObjPtr) -{ - Jim_Obj *varObjPtr, *objPtr, *listObjPtr; - int shared, i, index_t; - - varObjPtr = objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG); - if (objPtr == NULL) - return JIM_ERR; - if ((shared = Jim_IsShared(objPtr))) - varObjPtr = objPtr = Jim_DuplicateObj(interp, objPtr); - for (i = 0; i < indexc-1; i++) { - listObjPtr = objPtr; - if (Jim_GetIndex(interp, indexv[i], &index_t) != JIM_OK) - goto err; - if (Jim_ListIndex(interp, listObjPtr, index_t, &objPtr, - JIM_ERRMSG) != JIM_OK) { - goto err; - } - if (Jim_IsShared(objPtr)) { - objPtr = Jim_DuplicateObj(interp, objPtr); - ListSetIndex(interp, listObjPtr, index_t, objPtr, JIM_NONE); - } - Jim_InvalidateStringRep(listObjPtr); - } - if (Jim_GetIndex(interp, indexv[indexc-1], &index_t) != JIM_OK) - goto err; - if (ListSetIndex(interp, objPtr, index_t, newObjPtr, JIM_ERRMSG) == JIM_ERR) - goto err; - Jim_InvalidateStringRep(objPtr); - Jim_InvalidateStringRep(varObjPtr); - if (Jim_SetVariable(interp, varNamePtr, varObjPtr) != JIM_OK) - goto err; - Jim_SetResult(interp, varObjPtr); - return JIM_OK; -err: - if (shared) { - Jim_FreeNewObj(interp, varObjPtr); - } - return JIM_ERR; -} - -Jim_Obj *Jim_ConcatObj(Jim_Interp *interp, int objc, Jim_Obj *const *objv) -{ - int i; - - /* If all the objects in objv are lists without string rep. - * it's possible to return a list as result, that's the - * concatenation of all the lists. */ - for (i = 0; i < objc; i++) { - if (objv[i]->typePtr != &listObjType || objv[i]->bytes) - break; - } - if (i == objc) { - Jim_Obj *objPtr = Jim_NewListObj(interp, NULL, 0); - for (i = 0; i < objc; i++) - Jim_ListAppendList(interp, objPtr, objv[i]); - return objPtr; - } else { - /* Else... we have to glue strings together */ - int len = 0, objLen; - char *bytes, *p; - - /* Compute the length */ - for (i = 0; i < objc; i++) { - Jim_GetString(objv[i], &objLen); - len += objLen; - } - if (objc) len += objc-1; - /* Create the string rep, and a stinrg object holding it. */ - p = bytes = Jim_Alloc(len + 1); - for (i = 0; i < objc; i++) { - const char *s = Jim_GetString(objv[i], &objLen); - while (objLen && (*s == ' ' || *s == '\t' || *s == '\n')) - { - s++; objLen--; len--; - } - while (objLen && (s[objLen-1] == ' ' || - s[objLen-1] == '\n' || s[objLen-1] == '\t')) { - objLen--; len--; - } - memcpy(p, s, objLen); - p += objLen; - if (objLen && i + 1 != objc) { - *p++ = ' '; - } else if (i + 1 != objc) { - /* Drop the space calcuated for this - * element that is instead null. */ - len--; - } - } - *p = '\0'; - return Jim_NewStringObjNoAlloc(interp, bytes, len); - } -} - -/* Returns a list composed of the elements in the specified range. - * first and start are directly accepted as Jim_Objects and - * processed for the end?-index? case. */ -Jim_Obj *Jim_ListRange(Jim_Interp *interp, Jim_Obj *listObjPtr, Jim_Obj *firstObjPtr, Jim_Obj *lastObjPtr) -{ - int first, last; - int len, rangeLen; - - if (Jim_GetIndex(interp, firstObjPtr, &first) != JIM_OK || - Jim_GetIndex(interp, lastObjPtr, &last) != JIM_OK) - return NULL; - Jim_ListLength(interp, listObjPtr, &len); /* will convert into list */ - first = JimRelToAbsIndex(len, first); - last = JimRelToAbsIndex(len, last); - JimRelToAbsRange(len, first, last, &first, &last, &rangeLen); - return Jim_NewListObj(interp, - listObjPtr->internalRep.listValue.ele + first, rangeLen); -} - -/* ----------------------------------------------------------------------------- - * Dict object - * ---------------------------------------------------------------------------*/ -static void FreeDictInternalRep(Jim_Interp *interp, Jim_Obj *objPtr); -static void DupDictInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr); -static void UpdateStringOfDict(struct Jim_Obj *objPtr); -static int SetDictFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr); - -/* Dict HashTable Type. - * - * Keys and Values are Jim objects. */ - -unsigned int JimObjectHTHashFunction(const void *key) -{ - const char *str; - Jim_Obj *objPtr = (Jim_Obj*) key; - int len, h; - - str = Jim_GetString(objPtr, &len); - h = Jim_GenHashFunction((unsigned char*)str, len); - return h; -} - -int JimObjectHTKeyCompare(void *privdata, const void *key1, const void *key2) -{ - JIM_NOTUSED(privdata); - - return Jim_StringEqObj((Jim_Obj*)key1, (Jim_Obj*)key2, 0); -} - -static void JimObjectHTKeyValDestructor(void *interp, void *val) -{ - Jim_Obj *objPtr = val; - - Jim_DecrRefCount(interp, objPtr); -} - -static Jim_HashTableType JimDictHashTableType = { - JimObjectHTHashFunction, /* hash function */ - NULL, /* key dup */ - NULL, /* val dup */ - JimObjectHTKeyCompare, /* key compare */ - (void(*)(void*, const void*)) /* ATTENTION: const cast */ - JimObjectHTKeyValDestructor, /* key destructor */ - JimObjectHTKeyValDestructor /* val destructor */ -}; - -/* Note that while the elements of the dict may contain references, - * the list object itself can't. This basically means that the - * dict object string representation as a whole can't contain references - * that are not presents in the single elements. */ -static Jim_ObjType dictObjType = { - "dict", - FreeDictInternalRep, - DupDictInternalRep, - UpdateStringOfDict, - JIM_TYPE_NONE, -}; - -void FreeDictInternalRep(Jim_Interp *interp, Jim_Obj *objPtr) -{ - JIM_NOTUSED(interp); - - Jim_FreeHashTable(objPtr->internalRep.ptr); - Jim_Free(objPtr->internalRep.ptr); -} - -void DupDictInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr) -{ - Jim_HashTable *ht, *dupHt; - Jim_HashTableIterator *htiter; - Jim_HashEntry *he; - - /* Create a new hash table */ - ht = srcPtr->internalRep.ptr; - dupHt = Jim_Alloc(sizeof(*dupHt)); - Jim_InitHashTable(dupHt, &JimDictHashTableType, interp); - if (ht->size != 0) - Jim_ExpandHashTable(dupHt, ht->size); - /* Copy every element from the source to the dup hash table */ - htiter = Jim_GetHashTableIterator(ht); - while ((he = Jim_NextHashEntry(htiter)) != NULL) { - const Jim_Obj *keyObjPtr = he->key; - Jim_Obj *valObjPtr = he->val; - - Jim_IncrRefCount((Jim_Obj*)keyObjPtr); /* ATTENTION: const cast */ - Jim_IncrRefCount(valObjPtr); - Jim_AddHashEntry(dupHt, keyObjPtr, valObjPtr); - } - Jim_FreeHashTableIterator(htiter); - - dupPtr->internalRep.ptr = dupHt; - dupPtr->typePtr = &dictObjType; -} - -void UpdateStringOfDict(struct Jim_Obj *objPtr) -{ - int i, bufLen, realLength; - const char *strRep; - char *p; - int *quotingType, objc; - Jim_HashTable *ht; - Jim_HashTableIterator *htiter; - Jim_HashEntry *he; - Jim_Obj **objv; - - /* Trun the hash table into a flat vector of Jim_Objects. */ - ht = objPtr->internalRep.ptr; - objc = ht->used*2; - objv = Jim_Alloc(objc*sizeof(Jim_Obj*)); - htiter = Jim_GetHashTableIterator(ht); - i = 0; - while ((he = Jim_NextHashEntry(htiter)) != NULL) { - objv[i++] = (Jim_Obj*)he->key; /* ATTENTION: const cast */ - objv[i++] = he->val; - } - Jim_FreeHashTableIterator(htiter); - /* (Over) Estimate the space needed. */ - quotingType = Jim_Alloc(sizeof(int)*objc); - bufLen = 0; - for (i = 0; i < objc; i++) { - int len; - - strRep = Jim_GetString(objv[i], &len); - quotingType[i] = ListElementQuotingType(strRep, len); - switch (quotingType[i]) { - case JIM_ELESTR_SIMPLE: bufLen += len; break; - case JIM_ELESTR_BRACE: bufLen += len + 2; break; - case JIM_ELESTR_QUOTE: bufLen += len*2; break; - } - bufLen++; /* elements separator. */ - } - bufLen++; - - /* Generate the string rep. */ - p = objPtr->bytes = Jim_Alloc(bufLen + 1); - realLength = 0; - for (i = 0; i < objc; i++) { - int len, qlen; - strRep = Jim_GetString(objv[i], &len); - char *q; - - switch (quotingType[i]) { - case JIM_ELESTR_SIMPLE: - memcpy(p, strRep, len); - p += len; - realLength += len; - break; - case JIM_ELESTR_BRACE: - *p++ = '{'; - memcpy(p, strRep, len); - p += len; - *p++ = '}'; - realLength += len + 2; - break; - case JIM_ELESTR_QUOTE: - q = BackslashQuoteString(strRep, len, &qlen); - memcpy(p, q, qlen); - Jim_Free(q); - p += qlen; - realLength += qlen; - break; - } - /* Add a separating space */ - if (i + 1 != objc) { - *p++ = ' '; - realLength ++; - } - } - *p = '\0'; /* nul term. */ - objPtr->length = realLength; - Jim_Free(quotingType); - Jim_Free(objv); -} - -int SetDictFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr) -{ - struct JimParserCtx parser; - Jim_HashTable *ht; - Jim_Obj *objv[2]; - const char *str; - int i, strLen; - - /* Get the string representation */ - str = Jim_GetString(objPtr, &strLen); - - /* Free the old internal repr just now and initialize the - * new one just now. The string->list conversion can't fail. */ - Jim_FreeIntRep(interp, objPtr); - ht = Jim_Alloc(sizeof(*ht)); - Jim_InitHashTable(ht, &JimDictHashTableType, interp); - objPtr->typePtr = &dictObjType; - objPtr->internalRep.ptr = ht; - - /* Convert into a dict */ - JimParserInit(&parser, str, strLen, 1); - i = 0; - while (!JimParserEof(&parser)) { - char *token; - int tokenLen, type; - - JimParseList(&parser); - if (JimParserTtype(&parser) != JIM_TT_STR && - JimParserTtype(&parser) != JIM_TT_ESC) - continue; - token = JimParserGetToken(&parser, &tokenLen, &type, NULL); - objv[i++] = Jim_NewStringObjNoAlloc(interp, token, tokenLen); - if (i == 2) { - i = 0; - Jim_IncrRefCount(objv[0]); - Jim_IncrRefCount(objv[1]); - if (Jim_AddHashEntry(ht, objv[0], objv[1]) != JIM_OK) { - Jim_HashEntry *he; - he = Jim_FindHashEntry(ht, objv[0]); - Jim_DecrRefCount(interp, objv[0]); - /* ATTENTION: const cast */ - Jim_DecrRefCount(interp, (Jim_Obj*)he->val); - he->val = objv[1]; - } - } - } - if (i) { - Jim_FreeNewObj(interp, objv[0]); - objPtr->typePtr = NULL; - Jim_FreeHashTable(ht); - Jim_SetResultString(interp, "invalid dictionary value: must be a list with an even number of elements", -1); - return JIM_ERR; - } - return JIM_OK; -} - -/* Dict object API */ - -/* Add an element to a dict. objPtr must be of the "dict" type. - * The higer-level exported function is Jim_DictAddElement(). - * If an element with the specified key already exists, the value - * associated is replaced with the new one. - * - * if valueObjPtr == NULL, the key is instead removed if it exists. */ -static void DictAddElement(Jim_Interp *interp, Jim_Obj *objPtr, - Jim_Obj *keyObjPtr, Jim_Obj *valueObjPtr) -{ - Jim_HashTable *ht = objPtr->internalRep.ptr; - - if (valueObjPtr == NULL) { /* unset */ - Jim_DeleteHashEntry(ht, keyObjPtr); - return; - } - Jim_IncrRefCount(keyObjPtr); - Jim_IncrRefCount(valueObjPtr); - if (Jim_AddHashEntry(ht, keyObjPtr, valueObjPtr) != JIM_OK) { - Jim_HashEntry *he = Jim_FindHashEntry(ht, keyObjPtr); - Jim_DecrRefCount(interp, keyObjPtr); - /* ATTENTION: const cast */ - Jim_DecrRefCount(interp, (Jim_Obj*)he->val); - he->val = valueObjPtr; - } -} - -/* Add an element, higher-level interface for DictAddElement(). - * If valueObjPtr == NULL, the key is removed if it exists. */ -int Jim_DictAddElement(Jim_Interp *interp, Jim_Obj *objPtr, - Jim_Obj *keyObjPtr, Jim_Obj *valueObjPtr) -{ - if (Jim_IsShared(objPtr)) - Jim_Panic(interp,"Jim_DictAddElement called with shared object"); - if (objPtr->typePtr != &dictObjType) { - if (SetDictFromAny(interp, objPtr) != JIM_OK) - return JIM_ERR; - } - DictAddElement(interp, objPtr, keyObjPtr, valueObjPtr); - Jim_InvalidateStringRep(objPtr); - return JIM_OK; -} - -Jim_Obj *Jim_NewDictObj(Jim_Interp *interp, Jim_Obj *const *elements, int len) -{ - Jim_Obj *objPtr; - int i; - - if (len % 2) - Jim_Panic(interp,"Jim_NewDicObj() 'len' argument must be even"); - - objPtr = Jim_NewObj(interp); - objPtr->typePtr = &dictObjType; - objPtr->bytes = NULL; - objPtr->internalRep.ptr = Jim_Alloc(sizeof(Jim_HashTable)); - Jim_InitHashTable(objPtr->internalRep.ptr, &JimDictHashTableType, interp); - for (i = 0; i < len; i += 2) - DictAddElement(interp, objPtr, elements[i], elements[i + 1]); - return objPtr; -} - -/* Return the value associated to the specified dict key */ -int Jim_DictKey(Jim_Interp *interp, Jim_Obj *dictPtr, Jim_Obj *keyPtr, - Jim_Obj **objPtrPtr, int flags) -{ - Jim_HashEntry *he; - Jim_HashTable *ht; - - if (dictPtr->typePtr != &dictObjType) { - if (SetDictFromAny(interp, dictPtr) != JIM_OK) - return JIM_ERR; - } - ht = dictPtr->internalRep.ptr; - if ((he = Jim_FindHashEntry(ht, keyPtr)) == NULL) { - if (flags & JIM_ERRMSG) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "key \"", Jim_GetString(keyPtr, NULL), - "\" not found in dictionary", NULL); - } - return JIM_ERR; - } - *objPtrPtr = he->val; - return JIM_OK; -} - -/* Return the value associated to the specified dict keys */ -int Jim_DictKeysVector(Jim_Interp *interp, Jim_Obj *dictPtr, - Jim_Obj *const *keyv, int keyc, Jim_Obj **objPtrPtr, int flags) -{ - Jim_Obj *objPtr = NULL; - int i; - - if (keyc == 0) { - *objPtrPtr = dictPtr; - return JIM_OK; - } - - for (i = 0; i < keyc; i++) { - if (Jim_DictKey(interp, dictPtr, keyv[i], &objPtr, flags) - != JIM_OK) - return JIM_ERR; - dictPtr = objPtr; - } - *objPtrPtr = objPtr; - return JIM_OK; -} - -/* Modify the dict stored into the variable named 'varNamePtr' - * setting the element specified by the 'keyc' keys objects in 'keyv', - * with the new value of the element 'newObjPtr'. - * - * If newObjPtr == NULL the operation is to remove the given key - * from the dictionary. */ -int Jim_SetDictKeysVector(Jim_Interp *interp, Jim_Obj *varNamePtr, - Jim_Obj *const *keyv, int keyc, Jim_Obj *newObjPtr) -{ - Jim_Obj *varObjPtr, *objPtr, *dictObjPtr; - int shared, i; - - varObjPtr = objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG); - if (objPtr == NULL) { - if (newObjPtr == NULL) /* Cannot remove a key from non existing var */ - return JIM_ERR; - varObjPtr = objPtr = Jim_NewDictObj(interp, NULL, 0); - if (Jim_SetVariable(interp, varNamePtr, objPtr) != JIM_OK) { - Jim_FreeNewObj(interp, varObjPtr); - return JIM_ERR; - } - } - if ((shared = Jim_IsShared(objPtr))) - varObjPtr = objPtr = Jim_DuplicateObj(interp, objPtr); - for (i = 0; i < keyc-1; i++) { - dictObjPtr = objPtr; - - /* Check if it's a valid dictionary */ - if (dictObjPtr->typePtr != &dictObjType) { - if (SetDictFromAny(interp, dictObjPtr) != JIM_OK) - goto err; - } - /* Check if the given key exists. */ - Jim_InvalidateStringRep(dictObjPtr); - if (Jim_DictKey(interp, dictObjPtr, keyv[i], &objPtr, - newObjPtr ? JIM_NONE : JIM_ERRMSG) == JIM_OK) - { - /* This key exists at the current level. - * Make sure it's not shared!. */ - if (Jim_IsShared(objPtr)) { - objPtr = Jim_DuplicateObj(interp, objPtr); - DictAddElement(interp, dictObjPtr, keyv[i], objPtr); - } - } else { - /* Key not found. If it's an [unset] operation - * this is an error. Only the last key may not - * exist. */ - if (newObjPtr == NULL) - goto err; - /* Otherwise set an empty dictionary - * as key's value. */ - objPtr = Jim_NewDictObj(interp, NULL, 0); - DictAddElement(interp, dictObjPtr, keyv[i], objPtr); - } - } - if (Jim_DictAddElement(interp, objPtr, keyv[keyc-1], newObjPtr) - != JIM_OK) - goto err; - Jim_InvalidateStringRep(objPtr); - Jim_InvalidateStringRep(varObjPtr); - if (Jim_SetVariable(interp, varNamePtr, varObjPtr) != JIM_OK) - goto err; - Jim_SetResult(interp, varObjPtr); - return JIM_OK; -err: - if (shared) { - Jim_FreeNewObj(interp, varObjPtr); - } - return JIM_ERR; -} - -/* ----------------------------------------------------------------------------- - * Index object - * ---------------------------------------------------------------------------*/ -static void UpdateStringOfIndex(struct Jim_Obj *objPtr); -static int SetIndexFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr); - -static Jim_ObjType indexObjType = { - "index", - NULL, - NULL, - UpdateStringOfIndex, - JIM_TYPE_NONE, -}; - -void UpdateStringOfIndex(struct Jim_Obj *objPtr) -{ - int len; - char buf[JIM_INTEGER_SPACE + 1]; - - if (objPtr->internalRep.indexValue >= 0) - len = sprintf(buf, "%d", objPtr->internalRep.indexValue); - else if (objPtr->internalRep.indexValue == -1) - len = sprintf(buf, "end"); - else { - len = sprintf(buf, "end%d", objPtr->internalRep.indexValue + 1); - } - objPtr->bytes = Jim_Alloc(len + 1); - memcpy(objPtr->bytes, buf, len + 1); - objPtr->length = len; -} - -int SetIndexFromAny(Jim_Interp *interp, Jim_Obj *objPtr) -{ - int index_t, end = 0; - const char *str; - - /* Get the string representation */ - str = Jim_GetString(objPtr, NULL); - /* Try to convert into an index */ - if (!strcmp(str, "end")) { - index_t = 0; - end = 1; - } else { - if (!strncmp(str, "end-", 4)) { - str += 4; - end = 1; - } - if (Jim_StringToIndex(str, &index_t) != JIM_OK) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad index \"", Jim_GetString(objPtr, NULL), "\": " - "must be integer or end?-integer?", NULL); - return JIM_ERR; - } - } - if (end) { - if (index_t < 0) - index_t = INT_MAX; - else - index_t = -(index_t + 1); - } else if (index_t < 0) - index_t = -INT_MAX; - /* Free the old internal repr and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &indexObjType; - objPtr->internalRep.indexValue = index_t; - return JIM_OK; -} - -int Jim_GetIndex(Jim_Interp *interp, Jim_Obj *objPtr, int *indexPtr) -{ - /* Avoid shimmering if the object is an integer. */ - if (objPtr->typePtr == &intObjType) { - jim_wide val = objPtr->internalRep.wideValue; - if (!(val < LONG_MIN) && !(val > LONG_MAX)) { - *indexPtr = (val < 0) ? -INT_MAX : (long)val;; - return JIM_OK; - } - } - if (objPtr->typePtr != &indexObjType && - SetIndexFromAny(interp, objPtr) == JIM_ERR) - return JIM_ERR; - *indexPtr = objPtr->internalRep.indexValue; - return JIM_OK; -} - -/* ----------------------------------------------------------------------------- - * Return Code Object. - * ---------------------------------------------------------------------------*/ - -static int SetReturnCodeFromAny(Jim_Interp *interp, Jim_Obj *objPtr); - -static Jim_ObjType returnCodeObjType = { - "return-code", - NULL, - NULL, - NULL, - JIM_TYPE_NONE, -}; - -int SetReturnCodeFromAny(Jim_Interp *interp, Jim_Obj *objPtr) -{ - const char *str; - int strLen, returnCode; - jim_wide wideValue; - - /* Get the string representation */ - str = Jim_GetString(objPtr, &strLen); - /* Try to convert into an integer */ - if (JimGetWideNoErr(interp, objPtr, &wideValue) != JIM_ERR) - returnCode = (int) wideValue; - else if (!JimStringCompare(str, strLen, "ok", 2, JIM_NOCASE)) - returnCode = JIM_OK; - else if (!JimStringCompare(str, strLen, "error", 5, JIM_NOCASE)) - returnCode = JIM_ERR; - else if (!JimStringCompare(str, strLen, "return", 6, JIM_NOCASE)) - returnCode = JIM_RETURN; - else if (!JimStringCompare(str, strLen, "break", 5, JIM_NOCASE)) - returnCode = JIM_BREAK; - else if (!JimStringCompare(str, strLen, "continue", 8, JIM_NOCASE)) - returnCode = JIM_CONTINUE; - else if (!JimStringCompare(str, strLen, "eval", 4, JIM_NOCASE)) - returnCode = JIM_EVAL; - else if (!JimStringCompare(str, strLen, "exit", 4, JIM_NOCASE)) - returnCode = JIM_EXIT; - else { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "expected return code but got '", str, "'", - NULL); - return JIM_ERR; - } - /* Free the old internal repr and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - objPtr->typePtr = &returnCodeObjType; - objPtr->internalRep.returnCode = returnCode; - return JIM_OK; -} - -int Jim_GetReturnCode(Jim_Interp *interp, Jim_Obj *objPtr, int *intPtr) -{ - if (objPtr->typePtr != &returnCodeObjType && - SetReturnCodeFromAny(interp, objPtr) == JIM_ERR) - return JIM_ERR; - *intPtr = objPtr->internalRep.returnCode; - return JIM_OK; -} - -/* ----------------------------------------------------------------------------- - * Expression Parsing - * ---------------------------------------------------------------------------*/ -static int JimParseExprOperator(struct JimParserCtx *pc); -static int JimParseExprNumber(struct JimParserCtx *pc); -static int JimParseExprIrrational(struct JimParserCtx *pc); - -/* Exrp's Stack machine operators opcodes. */ - -/* Binary operators (numbers) */ -#define JIM_EXPROP_BINARY_NUM_FIRST 0 /* first */ -#define JIM_EXPROP_MUL 0 -#define JIM_EXPROP_DIV 1 -#define JIM_EXPROP_MOD 2 -#define JIM_EXPROP_SUB 3 -#define JIM_EXPROP_ADD 4 -#define JIM_EXPROP_LSHIFT 5 -#define JIM_EXPROP_RSHIFT 6 -#define JIM_EXPROP_ROTL 7 -#define JIM_EXPROP_ROTR 8 -#define JIM_EXPROP_LT 9 -#define JIM_EXPROP_GT 10 -#define JIM_EXPROP_LTE 11 -#define JIM_EXPROP_GTE 12 -#define JIM_EXPROP_NUMEQ 13 -#define JIM_EXPROP_NUMNE 14 -#define JIM_EXPROP_BITAND 15 -#define JIM_EXPROP_BITXOR 16 -#define JIM_EXPROP_BITOR 17 -#define JIM_EXPROP_LOGICAND 18 -#define JIM_EXPROP_LOGICOR 19 -#define JIM_EXPROP_LOGICAND_LEFT 20 -#define JIM_EXPROP_LOGICOR_LEFT 21 -#define JIM_EXPROP_POW 22 -#define JIM_EXPROP_BINARY_NUM_LAST 22 /* last */ - -/* Binary operators (strings) */ -#define JIM_EXPROP_STREQ 23 -#define JIM_EXPROP_STRNE 24 - -/* Unary operators (numbers) */ -#define JIM_EXPROP_NOT 25 -#define JIM_EXPROP_BITNOT 26 -#define JIM_EXPROP_UNARYMINUS 27 -#define JIM_EXPROP_UNARYPLUS 28 -#define JIM_EXPROP_LOGICAND_RIGHT 29 -#define JIM_EXPROP_LOGICOR_RIGHT 30 - -/* Ternary operators */ -#define JIM_EXPROP_TERNARY 31 - -/* Operands */ -#define JIM_EXPROP_NUMBER 32 -#define JIM_EXPROP_COMMAND 33 -#define JIM_EXPROP_VARIABLE 34 -#define JIM_EXPROP_DICTSUGAR 35 -#define JIM_EXPROP_SUBST 36 -#define JIM_EXPROP_STRING 37 - -/* Operators table */ -typedef struct Jim_ExprOperator { - const char *name; - int precedence; - int arity; - int opcode; -} Jim_ExprOperator; - -/* name - precedence - arity - opcode */ -static struct Jim_ExprOperator Jim_ExprOperators[] = { - {"!", 300, 1, JIM_EXPROP_NOT}, - {"~", 300, 1, JIM_EXPROP_BITNOT}, - {"unarymin", 300, 1, JIM_EXPROP_UNARYMINUS}, - {"unaryplus", 300, 1, JIM_EXPROP_UNARYPLUS}, - - {"**", 250, 2, JIM_EXPROP_POW}, - - {"*", 200, 2, JIM_EXPROP_MUL}, - {"/", 200, 2, JIM_EXPROP_DIV}, - {"%", 200, 2, JIM_EXPROP_MOD}, - - {"-", 100, 2, JIM_EXPROP_SUB}, - {"+", 100, 2, JIM_EXPROP_ADD}, - - {"<<<", 90, 3, JIM_EXPROP_ROTL}, - {">>>", 90, 3, JIM_EXPROP_ROTR}, - {"<<", 90, 2, JIM_EXPROP_LSHIFT}, - {">>", 90, 2, JIM_EXPROP_RSHIFT}, - - {"<", 80, 2, JIM_EXPROP_LT}, - {">", 80, 2, JIM_EXPROP_GT}, - {"<=", 80, 2, JIM_EXPROP_LTE}, - {">=", 80, 2, JIM_EXPROP_GTE}, - - {"==", 70, 2, JIM_EXPROP_NUMEQ}, - {"!=", 70, 2, JIM_EXPROP_NUMNE}, - - {"eq", 60, 2, JIM_EXPROP_STREQ}, - {"ne", 60, 2, JIM_EXPROP_STRNE}, - - {"&", 50, 2, JIM_EXPROP_BITAND}, - {"^", 49, 2, JIM_EXPROP_BITXOR}, - {"|", 48, 2, JIM_EXPROP_BITOR}, - - {"&&", 10, 2, JIM_EXPROP_LOGICAND}, - {"||", 10, 2, JIM_EXPROP_LOGICOR}, - - {"?", 5, 3, JIM_EXPROP_TERNARY}, - /* private operators */ - {NULL, 10, 2, JIM_EXPROP_LOGICAND_LEFT}, - {NULL, 10, 1, JIM_EXPROP_LOGICAND_RIGHT}, - {NULL, 10, 2, JIM_EXPROP_LOGICOR_LEFT}, - {NULL, 10, 1, JIM_EXPROP_LOGICOR_RIGHT}, -}; - -#define JIM_EXPR_OPERATORS_NUM \ - (sizeof(Jim_ExprOperators)/sizeof(struct Jim_ExprOperator)) - -int JimParseExpression(struct JimParserCtx *pc) -{ - /* Discard spaces and quoted newline */ - while (*(pc->p) == ' ' || - *(pc->p) == '\t' || - *(pc->p) == '\r' || - *(pc->p) == '\n' || - (*(pc->p) == '\\' && *(pc->p + 1) == '\n')) { - pc->p++; pc->len--; - } - - if (pc->len == 0) { - pc->tstart = pc->tend = pc->p; - pc->tline = pc->linenr; - pc->tt = JIM_TT_EOL; - pc->eof = 1; - return JIM_OK; - } - switch (*(pc->p)) { - case '(': - pc->tstart = pc->tend = pc->p; - pc->tline = pc->linenr; - pc->tt = JIM_TT_SUBEXPR_START; - pc->p++; pc->len--; - break; - case ')': - pc->tstart = pc->tend = pc->p; - pc->tline = pc->linenr; - pc->tt = JIM_TT_SUBEXPR_END; - pc->p++; pc->len--; - break; - case '[': - return JimParseCmd(pc); - break; - case '$': - if (JimParseVar(pc) == JIM_ERR) - return JimParseExprOperator(pc); - else - return JIM_OK; - break; - case '-': - if ((pc->tt == JIM_TT_NONE || pc->tt == JIM_TT_EXPR_OPERATOR) && - isdigit((int)*(pc->p + 1))) - return JimParseExprNumber(pc); - else - return JimParseExprOperator(pc); - break; - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': case '.': - return JimParseExprNumber(pc); - break; - case '"': - case '{': - /* Here it's possible to reuse the List String parsing. */ - pc->tt = JIM_TT_NONE; /* Make sure it's sensed as a new word. */ - return JimParseListStr(pc); - break; - case 'N': case 'I': - case 'n': case 'i': - if (JimParseExprIrrational(pc) == JIM_ERR) - return JimParseExprOperator(pc); - break; - default: - return JimParseExprOperator(pc); - break; - } - return JIM_OK; -} - -int JimParseExprNumber(struct JimParserCtx *pc) -{ - int allowdot = 1; - int allowhex = 0; - - pc->tstart = pc->p; - pc->tline = pc->linenr; - if (*pc->p == '-') { - pc->p++; pc->len--; - } - while (isdigit((int)*pc->p) - || (allowhex && isxdigit((int)*pc->p)) - || (allowdot && *pc->p == '.') - || (pc->p-pc->tstart == 1 && *pc->tstart == '0' && - (*pc->p == 'x' || *pc->p == 'X')) -) - { - if ((*pc->p == 'x') || (*pc->p == 'X')) { - allowhex = 1; - allowdot = 0; - } - if (*pc->p == '.') - allowdot = 0; - pc->p++; pc->len--; - if (!allowdot && *pc->p == 'e' && *(pc->p + 1) == '-') { - pc->p += 2; pc->len -= 2; - } - } - pc->tend = pc->p-1; - pc->tt = JIM_TT_EXPR_NUMBER; - return JIM_OK; -} - -int JimParseExprIrrational(struct JimParserCtx *pc) -{ - const char *Tokens[] = {"NaN", "nan", "NAN", "Inf", "inf", "INF", NULL}; - const char **token; - for (token = Tokens; *token != NULL; token++) { - int len = strlen(*token); - if (strncmp(*token, pc->p, len) == 0) { - pc->tstart = pc->p; - pc->tend = pc->p + len - 1; - pc->p += len; pc->len -= len; - pc->tline = pc->linenr; - pc->tt = JIM_TT_EXPR_NUMBER; - return JIM_OK; - } - } - return JIM_ERR; -} - -int JimParseExprOperator(struct JimParserCtx *pc) -{ - int i; - int bestIdx = -1, bestLen = 0; - - /* Try to get the longest match. */ - for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++) { - const char *opname; - int oplen; - - opname = Jim_ExprOperators[i].name; - if (opname == NULL) continue; - oplen = strlen(opname); - - if (strncmp(opname, pc->p, oplen) == 0 && oplen > bestLen) { - bestIdx = i; - bestLen = oplen; - } - } - if (bestIdx == -1) return JIM_ERR; - pc->tstart = pc->p; - pc->tend = pc->p + bestLen - 1; - pc->p += bestLen; pc->len -= bestLen; - pc->tline = pc->linenr; - pc->tt = JIM_TT_EXPR_OPERATOR; - return JIM_OK; -} - -struct Jim_ExprOperator *JimExprOperatorInfo(const char *opname) -{ - int i; - for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++) - if (Jim_ExprOperators[i].name && - strcmp(opname, Jim_ExprOperators[i].name) == 0) - return &Jim_ExprOperators[i]; - return NULL; -} - -struct Jim_ExprOperator *JimExprOperatorInfoByOpcode(int opcode) -{ - int i; - for (i = 0; i < (signed)JIM_EXPR_OPERATORS_NUM; i++) - if (Jim_ExprOperators[i].opcode == opcode) - return &Jim_ExprOperators[i]; - return NULL; -} - -/* ----------------------------------------------------------------------------- - * Expression Object - * ---------------------------------------------------------------------------*/ -static void FreeExprInternalRep(Jim_Interp *interp, Jim_Obj *objPtr); -static void DupExprInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr); -static int SetExprFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr); - -static Jim_ObjType exprObjType = { - "expression", - FreeExprInternalRep, - DupExprInternalRep, - NULL, - JIM_TYPE_REFERENCES, -}; - -/* Expr bytecode structure */ -typedef struct ExprByteCode { - int *opcode; /* Integer array of opcodes. */ - Jim_Obj **obj; /* Array of associated Jim Objects. */ - int len; /* Bytecode length */ - int inUse; /* Used for sharing. */ -} ExprByteCode; - -void FreeExprInternalRep(Jim_Interp *interp, Jim_Obj *objPtr) -{ - int i; - ExprByteCode *expr = (void*) objPtr->internalRep.ptr; - - expr->inUse--; - if (expr->inUse != 0) return; - for (i = 0; i < expr->len; i++) - Jim_DecrRefCount(interp, expr->obj[i]); - Jim_Free(expr->opcode); - Jim_Free(expr->obj); - Jim_Free(expr); -} - -void DupExprInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr) -{ - JIM_NOTUSED(interp); - JIM_NOTUSED(srcPtr); - - /* Just returns an simple string. */ - dupPtr->typePtr = NULL; -} - -/* Add a new instruction to an expression bytecode structure. */ -static void ExprObjAddInstr(Jim_Interp *interp, ExprByteCode *expr, - int opcode, char *str, int len) -{ - expr->opcode = Jim_Realloc(expr->opcode, sizeof(int)*(expr->len + 1)); - expr->obj = Jim_Realloc(expr->obj, sizeof(Jim_Obj*)*(expr->len + 1)); - expr->opcode[expr->len] = opcode; - expr->obj[expr->len] = Jim_NewStringObjNoAlloc(interp, str, len); - Jim_IncrRefCount(expr->obj[expr->len]); - expr->len++; -} - -/* Check if an expr program looks correct. */ -static int ExprCheckCorrectness(ExprByteCode *expr) -{ - int i; - int stacklen = 0; - - /* Try to check if there are stack underflows, - * and make sure at the end of the program there is - * a single result on the stack. */ - for (i = 0; i < expr->len; i++) { - switch (expr->opcode[i]) { - case JIM_EXPROP_NUMBER: - case JIM_EXPROP_STRING: - case JIM_EXPROP_SUBST: - case JIM_EXPROP_VARIABLE: - case JIM_EXPROP_DICTSUGAR: - case JIM_EXPROP_COMMAND: - stacklen++; - break; - case JIM_EXPROP_NOT: - case JIM_EXPROP_BITNOT: - case JIM_EXPROP_UNARYMINUS: - case JIM_EXPROP_UNARYPLUS: - /* Unary operations */ - if (stacklen < 1) return JIM_ERR; - break; - case JIM_EXPROP_ADD: - case JIM_EXPROP_SUB: - case JIM_EXPROP_MUL: - case JIM_EXPROP_DIV: - case JIM_EXPROP_MOD: - case JIM_EXPROP_LT: - case JIM_EXPROP_GT: - case JIM_EXPROP_LTE: - case JIM_EXPROP_GTE: - case JIM_EXPROP_ROTL: - case JIM_EXPROP_ROTR: - case JIM_EXPROP_LSHIFT: - case JIM_EXPROP_RSHIFT: - case JIM_EXPROP_NUMEQ: - case JIM_EXPROP_NUMNE: - case JIM_EXPROP_STREQ: - case JIM_EXPROP_STRNE: - case JIM_EXPROP_BITAND: - case JIM_EXPROP_BITXOR: - case JIM_EXPROP_BITOR: - case JIM_EXPROP_LOGICAND: - case JIM_EXPROP_LOGICOR: - case JIM_EXPROP_POW: - /* binary operations */ - if (stacklen < 2) return JIM_ERR; - stacklen--; - break; - default: - Jim_Panic(NULL,"Default opcode reached ExprCheckCorrectness"); - break; - } - } - if (stacklen != 1) return JIM_ERR; - return JIM_OK; -} - -static void ExprShareLiterals(Jim_Interp *interp, ExprByteCode *expr, - ScriptObj *topLevelScript) -{ - int i; - - return; - for (i = 0; i < expr->len; i++) { - Jim_Obj *foundObjPtr; - - if (expr->obj[i] == NULL) continue; - foundObjPtr = ScriptSearchLiteral(interp, topLevelScript, - NULL, expr->obj[i]); - if (foundObjPtr != NULL) { - Jim_IncrRefCount(foundObjPtr); - Jim_DecrRefCount(interp, expr->obj[i]); - expr->obj[i] = foundObjPtr; - } - } -} - -/* This procedure converts every occurrence of || and && opereators - * in lazy unary versions. - * - * a b || is converted into: - * - * a <offset> |L b |R - * - * a b && is converted into: - * - * a <offset> &L b &R - * - * "|L" checks if 'a' is true: - * 1) if it is true pushes 1 and skips <offset> istructions to reach - * the opcode just after |R. - * 2) if it is false does nothing. - * "|R" checks if 'b' is true: - * 1) if it is true pushes 1, otherwise pushes 0. - * - * "&L" checks if 'a' is true: - * 1) if it is true does nothing. - * 2) If it is false pushes 0 and skips <offset> istructions to reach - * the opcode just after &R - * "&R" checks if 'a' is true: - * if it is true pushes 1, otherwise pushes 0. - */ -static void ExprMakeLazy(Jim_Interp *interp, ExprByteCode *expr) -{ - while (1) { - int index_t = -1, leftindex, arity, i, offset; - Jim_ExprOperator *op; - - /* Search for || or && */ - for (i = 0; i < expr->len; i++) { - if (expr->opcode[i] == JIM_EXPROP_LOGICAND || - expr->opcode[i] == JIM_EXPROP_LOGICOR) { - index_t = i; - break; - } - } - if (index_t == -1) return; - /* Search for the end of the first operator */ - leftindex = index_t-1; - arity = 1; - while (arity) { - switch (expr->opcode[leftindex]) { - case JIM_EXPROP_NUMBER: - case JIM_EXPROP_COMMAND: - case JIM_EXPROP_VARIABLE: - case JIM_EXPROP_DICTSUGAR: - case JIM_EXPROP_SUBST: - case JIM_EXPROP_STRING: - break; - default: - op = JimExprOperatorInfoByOpcode(expr->opcode[leftindex]); - if (op == NULL) { - Jim_Panic(interp,"Default reached in ExprMakeLazy()"); - } - arity += op->arity; - break; - } - arity--; - leftindex--; - } - leftindex++; - expr->opcode = Jim_Realloc(expr->opcode, sizeof(int)*(expr->len + 2)); - expr->obj = Jim_Realloc(expr->obj, sizeof(Jim_Obj*)*(expr->len + 2)); - memmove(&expr->opcode[leftindex + 2], &expr->opcode[leftindex], - sizeof(int)*(expr->len-leftindex)); - memmove(&expr->obj[leftindex + 2], &expr->obj[leftindex], - sizeof(Jim_Obj*)*(expr->len-leftindex)); - expr->len += 2; - index_t += 2; - offset = (index_t-leftindex)-1; - Jim_DecrRefCount(interp, expr->obj[index_t]); - if (expr->opcode[index_t] == JIM_EXPROP_LOGICAND) { - expr->opcode[leftindex + 1] = JIM_EXPROP_LOGICAND_LEFT; - expr->opcode[index_t] = JIM_EXPROP_LOGICAND_RIGHT; - expr->obj[leftindex + 1] = Jim_NewStringObj(interp, "&L", -1); - expr->obj[index_t] = Jim_NewStringObj(interp, "&R", -1); - } else { - expr->opcode[leftindex + 1] = JIM_EXPROP_LOGICOR_LEFT; - expr->opcode[index_t] = JIM_EXPROP_LOGICOR_RIGHT; - expr->obj[leftindex + 1] = Jim_NewStringObj(interp, "|L", -1); - expr->obj[index_t] = Jim_NewStringObj(interp, "|R", -1); - } - expr->opcode[leftindex] = JIM_EXPROP_NUMBER; - expr->obj[leftindex] = Jim_NewIntObj(interp, offset); - Jim_IncrRefCount(expr->obj[index_t]); - Jim_IncrRefCount(expr->obj[leftindex]); - Jim_IncrRefCount(expr->obj[leftindex + 1]); - } -} - -/* This method takes the string representation of an expression - * and generates a program for the Expr's stack-based VM. */ -int SetExprFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr) -{ - int exprTextLen; - const char *exprText = Jim_GetString(objPtr, &exprTextLen); - struct JimParserCtx parser; - int i, shareLiterals; - ExprByteCode *expr = Jim_Alloc(sizeof(*expr)); - Jim_Stack stack; - Jim_ExprOperator *op; - - /* Perform literal sharing with the current procedure - * running only if this expression appears to be not generated - * at runtime. */ - shareLiterals = objPtr->typePtr == &sourceObjType; - - expr->opcode = NULL; - expr->obj = NULL; - expr->len = 0; - expr->inUse = 1; - - Jim_InitStack(&stack); - JimParserInit(&parser, exprText, exprTextLen, 1); - while (!JimParserEof(&parser)) { - char *token; - int len, type; - - if (JimParseExpression(&parser) != JIM_OK) { - Jim_SetResultString(interp, "Syntax error in expression", -1); - goto err; - } - token = JimParserGetToken(&parser, &len, &type, NULL); - if (type == JIM_TT_EOL) { - Jim_Free(token); - break; - } - switch (type) { - case JIM_TT_STR: - ExprObjAddInstr(interp, expr, JIM_EXPROP_STRING, token, len); - break; - case JIM_TT_ESC: - ExprObjAddInstr(interp, expr, JIM_EXPROP_SUBST, token, len); - break; - case JIM_TT_VAR: - ExprObjAddInstr(interp, expr, JIM_EXPROP_VARIABLE, token, len); - break; - case JIM_TT_DICTSUGAR: - ExprObjAddInstr(interp, expr, JIM_EXPROP_DICTSUGAR, token, len); - break; - case JIM_TT_CMD: - ExprObjAddInstr(interp, expr, JIM_EXPROP_COMMAND, token, len); - break; - case JIM_TT_EXPR_NUMBER: - ExprObjAddInstr(interp, expr, JIM_EXPROP_NUMBER, token, len); - break; - case JIM_TT_EXPR_OPERATOR: - op = JimExprOperatorInfo(token); - while (1) { - Jim_ExprOperator *stackTopOp; - - if (Jim_StackPeek(&stack) != NULL) { - stackTopOp = JimExprOperatorInfo(Jim_StackPeek(&stack)); - } else { - stackTopOp = NULL; - } - if (Jim_StackLen(&stack) && op->arity != 1 && - stackTopOp && stackTopOp->precedence >= op->precedence) - { - ExprObjAddInstr(interp, expr, stackTopOp->opcode, - Jim_StackPeek(&stack), -1); - Jim_StackPop(&stack); - } else { - break; - } - } - Jim_StackPush(&stack, token); - break; - case JIM_TT_SUBEXPR_START: - Jim_StackPush(&stack, Jim_StrDup("(")); - Jim_Free(token); - break; - case JIM_TT_SUBEXPR_END: - { - int found = 0; - while (Jim_StackLen(&stack)) { - char *opstr = Jim_StackPop(&stack); - if (!strcmp(opstr, "(")) { - Jim_Free(opstr); - found = 1; - break; - } - op = JimExprOperatorInfo(opstr); - ExprObjAddInstr(interp, expr, op->opcode, opstr, -1); - } - if (!found) { - Jim_SetResultString(interp, - "Unexpected close parenthesis", -1); - goto err; - } - } - Jim_Free(token); - break; - default: - Jim_Panic(interp,"Default reached in SetExprFromAny()"); - break; - } - } - while (Jim_StackLen(&stack)) { - char *opstr = Jim_StackPop(&stack); - op = JimExprOperatorInfo(opstr); - if (op == NULL && !strcmp(opstr, "(")) { - Jim_Free(opstr); - Jim_SetResultString(interp, "Missing close parenthesis", -1); - goto err; - } - ExprObjAddInstr(interp, expr, op->opcode, opstr, -1); - } - /* Check program correctness. */ - if (ExprCheckCorrectness(expr) != JIM_OK) { - Jim_SetResultString(interp, "Invalid expression", -1); - goto err; - } - - /* Free the stack used for the compilation. */ - Jim_FreeStackElements(&stack, Jim_Free); - Jim_FreeStack(&stack); - - /* Convert || and && operators in unary |L |R and &L &R for lazyness */ - ExprMakeLazy(interp, expr); - - /* Perform literal sharing */ - if (shareLiterals && interp->framePtr->procBodyObjPtr) { - Jim_Obj *bodyObjPtr = interp->framePtr->procBodyObjPtr; - if (bodyObjPtr->typePtr == &scriptObjType) { - ScriptObj *bodyScript = bodyObjPtr->internalRep.ptr; - ExprShareLiterals(interp, expr, bodyScript); - } - } - - /* Free the old internal rep and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - Jim_SetIntRepPtr(objPtr, expr); - objPtr->typePtr = &exprObjType; - return JIM_OK; - -err: /* we jump here on syntax/compile errors. */ - Jim_FreeStackElements(&stack, Jim_Free); - Jim_FreeStack(&stack); - Jim_Free(expr->opcode); - for (i = 0; i < expr->len; i++) { - Jim_DecrRefCount(interp,expr->obj[i]); - } - Jim_Free(expr->obj); - Jim_Free(expr); - return JIM_ERR; -} - -ExprByteCode *Jim_GetExpression(Jim_Interp *interp, Jim_Obj *objPtr) -{ - if (objPtr->typePtr != &exprObjType) { - if (SetExprFromAny(interp, objPtr) != JIM_OK) - return NULL; - } - return (ExprByteCode*) Jim_GetIntRepPtr(objPtr); -} - -/* ----------------------------------------------------------------------------- - * Expressions evaluation. - * Jim uses a specialized stack-based virtual machine for expressions, - * that takes advantage of the fact that expr's operators - * can't be redefined. - * - * Jim_EvalExpression() uses the bytecode compiled by - * SetExprFromAny() method of the "expression" object. - * - * On success a Tcl Object containing the result of the evaluation - * is stored into expResultPtrPtr (having refcount of 1), and JIM_OK is - * returned. - * On error the function returns a retcode != to JIM_OK and set a suitable - * error on the interp. - * ---------------------------------------------------------------------------*/ -#define JIM_EE_STATICSTACK_LEN 10 - -int Jim_EvalExpression(Jim_Interp *interp, Jim_Obj *exprObjPtr, - Jim_Obj **exprResultPtrPtr) -{ - ExprByteCode *expr; - Jim_Obj **stack, *staticStack[JIM_EE_STATICSTACK_LEN]; - int stacklen = 0, i, error = 0, errRetCode = JIM_ERR; - - Jim_IncrRefCount(exprObjPtr); - expr = Jim_GetExpression(interp, exprObjPtr); - if (!expr) { - Jim_DecrRefCount(interp, exprObjPtr); - return JIM_ERR; /* error in expression. */ - } - /* In order to avoid that the internal repr gets freed due to - * shimmering of the exprObjPtr's object, we make the internal rep - * shared. */ - expr->inUse++; - - /* The stack-based expr VM itself */ - - /* Stack allocation. Expr programs have the feature that - * a program of length N can't require a stack longer than - * N. */ - if (expr->len > JIM_EE_STATICSTACK_LEN) - stack = Jim_Alloc(sizeof(Jim_Obj*)*expr->len); - else - stack = staticStack; - - /* Execute every istruction */ - for (i = 0; i < expr->len; i++) { - Jim_Obj *A, *B, *objPtr; - jim_wide wA, wB, wC; - double dA, dB, dC; - const char *sA, *sB; - int Alen, Blen, retcode; - int opcode = expr->opcode[i]; - - if (opcode == JIM_EXPROP_NUMBER || opcode == JIM_EXPROP_STRING) { - stack[stacklen++] = expr->obj[i]; - Jim_IncrRefCount(expr->obj[i]); - } else if (opcode == JIM_EXPROP_VARIABLE) { - objPtr = Jim_GetVariable(interp, expr->obj[i], JIM_ERRMSG); - if (objPtr == NULL) { - error = 1; - goto err; - } - stack[stacklen++] = objPtr; - Jim_IncrRefCount(objPtr); - } else if (opcode == JIM_EXPROP_SUBST) { - if ((retcode = Jim_SubstObj(interp, expr->obj[i], - &objPtr, JIM_NONE)) != JIM_OK) - { - error = 1; - errRetCode = retcode; - goto err; - } - stack[stacklen++] = objPtr; - Jim_IncrRefCount(objPtr); - } else if (opcode == JIM_EXPROP_DICTSUGAR) { - objPtr = Jim_ExpandDictSugar(interp, expr->obj[i]); - if (objPtr == NULL) { - error = 1; - goto err; - } - stack[stacklen++] = objPtr; - Jim_IncrRefCount(objPtr); - } else if (opcode == JIM_EXPROP_COMMAND) { - if ((retcode = Jim_EvalObj(interp, expr->obj[i])) != JIM_OK) { - error = 1; - errRetCode = retcode; - goto err; - } - stack[stacklen++] = interp->result; - Jim_IncrRefCount(interp->result); - } else if (opcode >= JIM_EXPROP_BINARY_NUM_FIRST && - opcode <= JIM_EXPROP_BINARY_NUM_LAST) - { - /* Note that there isn't to increment the - * refcount of objects. the references are moved - * from stack to A and B. */ - B = stack[--stacklen]; - A = stack[--stacklen]; - - /* --- Integer --- */ - if ((A->typePtr == &doubleObjType && !A->bytes) || - (B->typePtr == &doubleObjType && !B->bytes) || - JimGetWideNoErr(interp, A, &wA) != JIM_OK || - JimGetWideNoErr(interp, B, &wB) != JIM_OK) { - goto trydouble; - } - Jim_DecrRefCount(interp, A); - Jim_DecrRefCount(interp, B); - switch (expr->opcode[i]) { - case JIM_EXPROP_ADD: wC = wA + wB; break; - case JIM_EXPROP_SUB: wC = wA-wB; break; - case JIM_EXPROP_MUL: wC = wA*wB; break; - case JIM_EXPROP_LT: wC = wA < wB; break; - case JIM_EXPROP_GT: wC = wA > wB; break; - case JIM_EXPROP_LTE: wC = wA <= wB; break; - case JIM_EXPROP_GTE: wC = wA >= wB; break; - case JIM_EXPROP_LSHIFT: wC = wA << wB; break; - case JIM_EXPROP_RSHIFT: wC = wA >> wB; break; - case JIM_EXPROP_NUMEQ: wC = wA == wB; break; - case JIM_EXPROP_NUMNE: wC = wA != wB; break; - case JIM_EXPROP_BITAND: wC = wA&wB; break; - case JIM_EXPROP_BITXOR: wC = wA^wB; break; - case JIM_EXPROP_BITOR: wC = wA | wB; break; - case JIM_EXPROP_POW: wC = JimPowWide(wA,wB); break; - case JIM_EXPROP_LOGICAND_LEFT: - if (wA == 0) { - i += (int)wB; - wC = 0; - } else { - continue; - } - break; - case JIM_EXPROP_LOGICOR_LEFT: - if (wA != 0) { - i += (int)wB; - wC = 1; - } else { - continue; - } - break; - case JIM_EXPROP_DIV: - if (wB == 0) goto divbyzero; - wC = wA/wB; - break; - case JIM_EXPROP_MOD: - if (wB == 0) goto divbyzero; - wC = wA%wB; - break; - case JIM_EXPROP_ROTL: { - /* uint32_t would be better. But not everyone has inttypes.h?*/ - unsigned long uA = (unsigned long)wA; -#ifdef _MSC_VER - wC = _rotl(uA,(unsigned long)wB); -#else - const unsigned int S = sizeof(unsigned long) * 8; - wC = (unsigned long)((uA << wB) | (uA >> (S-wB))); -#endif - break; - } - case JIM_EXPROP_ROTR: { - unsigned long uA = (unsigned long)wA; -#ifdef _MSC_VER - wC = _rotr(uA,(unsigned long)wB); -#else - const unsigned int S = sizeof(unsigned long) * 8; - wC = (unsigned long)((uA >> wB) | (uA << (S-wB))); -#endif - break; - } - - default: - wC = 0; /* avoid gcc warning */ - break; - } - stack[stacklen] = Jim_NewIntObj(interp, wC); - Jim_IncrRefCount(stack[stacklen]); - stacklen++; - continue; -trydouble: - /* --- Double --- */ - if (Jim_GetDouble(interp, A, &dA) != JIM_OK || - Jim_GetDouble(interp, B, &dB) != JIM_OK) { - - /* Hmmm! For compatibility, maybe convert != and == into ne and eq */ - if (expr->opcode[i] == JIM_EXPROP_NUMNE) { - opcode = JIM_EXPROP_STRNE; - goto retry_as_string; - } - else if (expr->opcode[i] == JIM_EXPROP_NUMEQ) { - opcode = JIM_EXPROP_STREQ; - goto retry_as_string; - } - Jim_DecrRefCount(interp, A); - Jim_DecrRefCount(interp, B); - error = 1; - goto err; - } - Jim_DecrRefCount(interp, A); - Jim_DecrRefCount(interp, B); - switch (expr->opcode[i]) { - case JIM_EXPROP_ROTL: - case JIM_EXPROP_ROTR: - case JIM_EXPROP_LSHIFT: - case JIM_EXPROP_RSHIFT: - case JIM_EXPROP_BITAND: - case JIM_EXPROP_BITXOR: - case JIM_EXPROP_BITOR: - case JIM_EXPROP_MOD: - case JIM_EXPROP_POW: - Jim_SetResultString(interp, - "Got floating-point value where integer was expected", -1); - error = 1; - goto err; - case JIM_EXPROP_ADD: dC = dA + dB; break; - case JIM_EXPROP_SUB: dC = dA-dB; break; - case JIM_EXPROP_MUL: dC = dA*dB; break; - case JIM_EXPROP_LT: dC = dA < dB; break; - case JIM_EXPROP_GT: dC = dA > dB; break; - case JIM_EXPROP_LTE: dC = dA <= dB; break; - case JIM_EXPROP_GTE: dC = dA >= dB; break; - /* FIXME comparing floats for equality/inequality is bad juju */ - case JIM_EXPROP_NUMEQ: dC = dA == dB; break; - case JIM_EXPROP_NUMNE: dC = dA != dB; break; - case JIM_EXPROP_LOGICAND_LEFT: - if (dA == 0) { - i += (int)dB; - dC = 0; - } else { - continue; - } - break; - case JIM_EXPROP_LOGICOR_LEFT: - if (dA != 0) { - i += (int)dB; - dC = 1; - } else { - continue; - } - break; - case JIM_EXPROP_DIV: - if (dB == 0) goto divbyzero; - dC = dA/dB; - break; - default: - dC = 0; /* avoid gcc warning */ - break; - } - stack[stacklen] = Jim_NewDoubleObj(interp, dC); - Jim_IncrRefCount(stack[stacklen]); - stacklen++; - } else if (opcode == JIM_EXPROP_STREQ || opcode == JIM_EXPROP_STRNE) { - B = stack[--stacklen]; - A = stack[--stacklen]; -retry_as_string: - sA = Jim_GetString(A, &Alen); - sB = Jim_GetString(B, &Blen); - switch (opcode) { - case JIM_EXPROP_STREQ: - if (Alen == Blen && memcmp(sA, sB, Alen) ==0) - wC = 1; - else - wC = 0; - break; - case JIM_EXPROP_STRNE: - if (Alen != Blen || memcmp(sA, sB, Alen) != 0) - wC = 1; - else - wC = 0; - break; - default: - wC = 0; /* avoid gcc warning */ - break; - } - Jim_DecrRefCount(interp, A); - Jim_DecrRefCount(interp, B); - stack[stacklen] = Jim_NewIntObj(interp, wC); - Jim_IncrRefCount(stack[stacklen]); - stacklen++; - } else if (opcode == JIM_EXPROP_NOT || - opcode == JIM_EXPROP_BITNOT || - opcode == JIM_EXPROP_LOGICAND_RIGHT || - opcode == JIM_EXPROP_LOGICOR_RIGHT) { - /* Note that there isn't to increment the - * refcount of objects. the references are moved - * from stack to A and B. */ - A = stack[--stacklen]; - - /* --- Integer --- */ - if ((A->typePtr == &doubleObjType && !A->bytes) || - JimGetWideNoErr(interp, A, &wA) != JIM_OK) { - goto trydouble_unary; - } - Jim_DecrRefCount(interp, A); - switch (expr->opcode[i]) { - case JIM_EXPROP_NOT: wC = !wA; break; - case JIM_EXPROP_BITNOT: wC = ~wA; break; - case JIM_EXPROP_LOGICAND_RIGHT: - case JIM_EXPROP_LOGICOR_RIGHT: wC = (wA != 0); break; - default: - wC = 0; /* avoid gcc warning */ - break; - } - stack[stacklen] = Jim_NewIntObj(interp, wC); - Jim_IncrRefCount(stack[stacklen]); - stacklen++; - continue; -trydouble_unary: - /* --- Double --- */ - if (Jim_GetDouble(interp, A, &dA) != JIM_OK) { - Jim_DecrRefCount(interp, A); - error = 1; - goto err; - } - Jim_DecrRefCount(interp, A); - switch (expr->opcode[i]) { - case JIM_EXPROP_NOT: dC = !dA; break; - case JIM_EXPROP_LOGICAND_RIGHT: - case JIM_EXPROP_LOGICOR_RIGHT: dC = (dA != 0); break; - case JIM_EXPROP_BITNOT: - Jim_SetResultString(interp, - "Got floating-point value where integer was expected", -1); - error = 1; - goto err; - break; - default: - dC = 0; /* avoid gcc warning */ - break; - } - stack[stacklen] = Jim_NewDoubleObj(interp, dC); - Jim_IncrRefCount(stack[stacklen]); - stacklen++; - } else { - Jim_Panic(interp,"Unknown opcode in Jim_EvalExpression"); - } - } -err: - /* There is no need to decerement the inUse field because - * this reference is transfered back into the exprObjPtr. */ - Jim_FreeIntRep(interp, exprObjPtr); - exprObjPtr->typePtr = &exprObjType; - Jim_SetIntRepPtr(exprObjPtr, expr); - Jim_DecrRefCount(interp, exprObjPtr); - if (!error) { - *exprResultPtrPtr = stack[0]; - Jim_IncrRefCount(stack[0]); - errRetCode = JIM_OK; - } - for (i = 0; i < stacklen; i++) { - Jim_DecrRefCount(interp, stack[i]); - } - if (stack != staticStack) - Jim_Free(stack); - return errRetCode; -divbyzero: - error = 1; - Jim_SetResultString(interp, "Division by zero", -1); - goto err; -} - -int Jim_GetBoolFromExpr(Jim_Interp *interp, Jim_Obj *exprObjPtr, int *boolPtr) -{ - int retcode; - jim_wide wideValue; - double doubleValue; - Jim_Obj *exprResultPtr; - - retcode = Jim_EvalExpression(interp, exprObjPtr, &exprResultPtr); - if (retcode != JIM_OK) - return retcode; - if (JimGetWideNoErr(interp, exprResultPtr, &wideValue) != JIM_OK) { - if (Jim_GetDouble(interp, exprResultPtr, &doubleValue) != JIM_OK) - { - Jim_DecrRefCount(interp, exprResultPtr); - return JIM_ERR; - } else { - Jim_DecrRefCount(interp, exprResultPtr); - *boolPtr = doubleValue != 0; - return JIM_OK; - } - } - Jim_DecrRefCount(interp, exprResultPtr); - *boolPtr = wideValue != 0; - return JIM_OK; -} - -/* ----------------------------------------------------------------------------- - * ScanFormat String Object - * ---------------------------------------------------------------------------*/ - -/* This Jim_Obj will held a parsed representation of a format string passed to - * the Jim_ScanString command. For error diagnostics, the scanformat string has - * to be parsed in its entirely first and then, if correct, can be used for - * scanning. To avoid endless re-parsing, the parsed representation will be - * stored in an internal representation and re-used for performance reason. */ - -/* A ScanFmtPartDescr will held the information of /one/ part of the whole - * scanformat string. This part will later be used to extract information - * out from the string to be parsed by Jim_ScanString */ - -typedef struct ScanFmtPartDescr { - char type; /* Type of conversion (e.g. c, d, f) */ - char modifier; /* Modify type (e.g. l - long, h - short */ - size_t width; /* Maximal width of input to be converted */ - int pos; /* -1 - no assign, 0 - natural pos, >0 - XPG3 pos */ - char *arg; /* Specification of a CHARSET conversion */ - char *prefix; /* Prefix to be scanned literally before conversion */ -} ScanFmtPartDescr; - -/* The ScanFmtStringObj will held the internal representation of a scanformat - * string parsed and separated in part descriptions. Furthermore it contains - * the original string representation of the scanformat string to allow for - * fast update of the Jim_Obj's string representation part. - * - * As add-on the internal object representation add some scratch pad area - * for usage by Jim_ScanString to avoid endless allocating and freeing of - * memory for purpose of string scanning. - * - * The error member points to a static allocated string in case of a mal- - * formed scanformat string or it contains '0' (NULL) in case of a valid - * parse representation. - * - * The whole memory of the internal representation is allocated as a single - * area of memory that will be internally separated. So freeing and duplicating - * of such an object is cheap */ - -typedef struct ScanFmtStringObj { - jim_wide size; /* Size of internal repr in bytes */ - char *stringRep; /* Original string representation */ - size_t count; /* Number of ScanFmtPartDescr contained */ - size_t convCount; /* Number of conversions that will assign */ - size_t maxPos; /* Max position index if XPG3 is used */ - const char *error; /* Ptr to error text (NULL if no error */ - char *scratch; /* Some scratch pad used by Jim_ScanString */ - ScanFmtPartDescr descr[1]; /* The vector of partial descriptions */ -} ScanFmtStringObj; - - -static void FreeScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *objPtr); -static void DupScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr); -static void UpdateStringOfScanFmt(Jim_Obj *objPtr); - -static Jim_ObjType scanFmtStringObjType = { - "scanformatstring", - FreeScanFmtInternalRep, - DupScanFmtInternalRep, - UpdateStringOfScanFmt, - JIM_TYPE_NONE, -}; - -void FreeScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *objPtr) -{ - JIM_NOTUSED(interp); - Jim_Free((char*)objPtr->internalRep.ptr); - objPtr->internalRep.ptr = 0; -} - -void DupScanFmtInternalRep(Jim_Interp *interp, Jim_Obj *srcPtr, Jim_Obj *dupPtr) -{ - size_t size = (size_t)((ScanFmtStringObj*)srcPtr->internalRep.ptr)->size; - ScanFmtStringObj *newVec = (ScanFmtStringObj*)Jim_Alloc(size); - - JIM_NOTUSED(interp); - memcpy(newVec, srcPtr->internalRep.ptr, size); - dupPtr->internalRep.ptr = newVec; - dupPtr->typePtr = &scanFmtStringObjType; -} - -void UpdateStringOfScanFmt(Jim_Obj *objPtr) -{ - char *bytes = ((ScanFmtStringObj*)objPtr->internalRep.ptr)->stringRep; - - objPtr->bytes = Jim_StrDup(bytes); - objPtr->length = strlen(bytes); -} - -/* SetScanFmtFromAny will parse a given string and create the internal - * representation of the format specification. In case of an error - * the error data member of the internal representation will be set - * to an descriptive error text and the function will be left with - * JIM_ERR to indicate unsucessful parsing (aka. malformed scanformat - * specification */ - -static int SetScanFmtFromAny(Jim_Interp *interp, Jim_Obj *objPtr) -{ - ScanFmtStringObj *fmtObj; - char *buffer; - int maxCount, i, approxSize, lastPos = -1; - const char *fmt = objPtr->bytes; - int maxFmtLen = objPtr->length; - const char *fmtEnd = fmt + maxFmtLen; - int curr; - - Jim_FreeIntRep(interp, objPtr); - /* Count how many conversions could take place maximally */ - for (i = 0, maxCount = 0; i < maxFmtLen; ++i) - if (fmt[i] == '%') - ++maxCount; - /* Calculate an approximation of the memory necessary */ - approxSize = sizeof(ScanFmtStringObj) /* Size of the container */ - + (maxCount + 1) * sizeof(ScanFmtPartDescr) /* Size of all partials */ - + maxFmtLen * sizeof(char) + 3 + 1 /* Scratch + "%n" + '\0' */ - + maxFmtLen * sizeof(char) + 1 /* Original stringrep */ - + maxFmtLen * sizeof(char) /* Arg for CHARSETs */ - + (maxCount +1) * sizeof(char) /* '\0' for every partial */ - + 1; /* safety byte */ - fmtObj = (ScanFmtStringObj*)Jim_Alloc(approxSize); - memset(fmtObj, 0, approxSize); - fmtObj->size = approxSize; - fmtObj->maxPos = 0; - fmtObj->scratch = (char*)&fmtObj->descr[maxCount + 1]; - fmtObj->stringRep = fmtObj->scratch + maxFmtLen + 3 + 1; - memcpy(fmtObj->stringRep, fmt, maxFmtLen); - buffer = fmtObj->stringRep + maxFmtLen + 1; - objPtr->internalRep.ptr = fmtObj; - objPtr->typePtr = &scanFmtStringObjType; - for (i = 0, curr = 0; fmt < fmtEnd; ++fmt) { - int width = 0, skip; - ScanFmtPartDescr *descr = &fmtObj->descr[curr]; - fmtObj->count++; - descr->width = 0; /* Assume width unspecified */ - /* Overread and store any "literal" prefix */ - if (*fmt != '%' || fmt[1] == '%') { - descr->type = 0; - descr->prefix = &buffer[i]; - for (; fmt < fmtEnd; ++fmt) { - if (*fmt == '%') { - if (fmt[1] != '%') break; - ++fmt; - } - buffer[i++] = *fmt; - } - buffer[i++] = 0; - } - /* Skip the conversion introducing '%' sign */ - ++fmt; - /* End reached due to non-conversion literal only? */ - if (fmt >= fmtEnd) - goto done; - descr->pos = 0; /* Assume "natural" positioning */ - if (*fmt == '*') { - descr->pos = -1; /* Okay, conversion will not be assigned */ - ++fmt; - } else - fmtObj->convCount++; /* Otherwise count as assign-conversion */ - /* Check if next token is a number (could be width or pos */ - if (sscanf(fmt, "%d%n", &width, &skip) == 1) { - fmt += skip; - /* Was the number a XPG3 position specifier? */ - if (descr->pos != -1 && *fmt == '$') { - int prev; - ++fmt; - descr->pos = width; - width = 0; - /* Look if "natural" postioning and XPG3 one was mixed */ - if ((lastPos == 0 && descr->pos > 0) - || (lastPos > 0 && descr->pos == 0)) { - fmtObj->error = "cannot mix \"%\" and \"%n$\" conversion specifiers"; - return JIM_ERR; - } - /* Look if this position was already used */ - for (prev = 0; prev < curr; ++prev) { - if (fmtObj->descr[prev].pos == -1) continue; - if (fmtObj->descr[prev].pos == descr->pos) { - fmtObj->error = "same \"%n$\" conversion specifier " - "used more than once"; - return JIM_ERR; - } - } - /* Try to find a width after the XPG3 specifier */ - if (sscanf(fmt, "%d%n", &width, &skip) == 1) { - descr->width = width; - fmt += skip; - } - if (descr->pos > 0 && (size_t)descr->pos > fmtObj->maxPos) - fmtObj->maxPos = descr->pos; - } else { - /* Number was not a XPG3, so it has to be a width */ - descr->width = width; - } - } - /* If positioning mode was undetermined yet, fix this */ - if (lastPos == -1) - lastPos = descr->pos; - /* Handle CHARSET conversion type ... */ - if (*fmt == '[') { - int swapped = 1, beg = i, end, j; - descr->type = '['; - descr->arg = &buffer[i]; - ++fmt; - if (*fmt == '^') buffer[i++] = *fmt++; - if (*fmt == ']') buffer[i++] = *fmt++; - while (*fmt && *fmt != ']') buffer[i++] = *fmt++; - if (*fmt != ']') { - fmtObj->error = "unmatched [ in format string"; - return JIM_ERR; - } - end = i; - buffer[i++] = 0; - /* In case a range fence was given "backwards", swap it */ - while (swapped) { - swapped = 0; - for (j = beg + 1; j < end-1; ++j) { - if (buffer[j] == '-' && buffer[j-1] > buffer[j + 1]) { - char tmp = buffer[j-1]; - buffer[j-1] = buffer[j + 1]; - buffer[j + 1] = tmp; - swapped = 1; - } - } - } - } else { - /* Remember any valid modifier if given */ - if (strchr("hlL", *fmt) != 0) - descr->modifier = tolower((int)*fmt++); - - descr->type = *fmt; - if (strchr("efgcsndoxui", *fmt) == 0) { - fmtObj->error = "bad scan conversion character"; - return JIM_ERR; - } else if (*fmt == 'c' && descr->width != 0) { - fmtObj->error = "field width may not be specified in %c " - "conversion"; - return JIM_ERR; - } else if (*fmt == 'u' && descr->modifier == 'l') { - fmtObj->error = "unsigned wide not supported"; - return JIM_ERR; - } - } - curr++; - } -done: - if (fmtObj->convCount == 0) { - fmtObj->error = "no any conversion specifier given"; - return JIM_ERR; - } - return JIM_OK; -} - -/* Some accessor macros to allow lowlevel access to fields of internal repr */ - -#define FormatGetCnvCount(_fo_) \ - ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->convCount -#define FormatGetMaxPos(_fo_) \ - ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->maxPos -#define FormatGetError(_fo_) \ - ((ScanFmtStringObj*)((_fo_)->internalRep.ptr))->error - -/* Some Bit testing/setting/cleaning routines. For now only used in handling - * charsets ([a-z123]) within scanning. Later on perhaps a base for a - * bitvector implementation in Jim? */ - -static int JimTestBit(const char *bitvec, char ch) -{ - div_t pos = div(ch-1, 8); - return bitvec[pos.quot] & (1 << pos.rem); -} - -static void JimSetBit(char *bitvec, char ch) -{ - div_t pos = div(ch-1, 8); - bitvec[pos.quot] |= (1 << pos.rem); -} - -#if 0 /* currently not used */ -static void JimClearBit(char *bitvec, char ch) -{ - div_t pos = div(ch-1, 8); - bitvec[pos.quot] &= ~(1 << pos.rem); -} -#endif - -/* JimScanAString is used to scan an unspecified string that ends with - * next WS, or a string that is specified via a charset. The charset - * is currently implemented in a way to only allow for usage with - * ASCII. Whenever we will switch to UNICODE, another idea has to - * be born :-/ - * - * FIXME: Works only with ASCII */ - -static Jim_Obj * -JimScanAString(Jim_Interp *interp, const char *sdescr, const char *str) -{ - size_t i; - Jim_Obj *result; - char charset[256/8 + 1]; /* A Charset may contain max 256 chars */ - char *buffer = Jim_Alloc(strlen(str) + 1), *anchor = buffer; - - /* First init charset to nothing or all, depending if a specified - * or an unspecified string has to be parsed */ - memset(charset, (sdescr ? 0 : 255), sizeof(charset)); - if (sdescr) { - /* There was a set description given, that means we are parsing - * a specified string. So we have to build a corresponding - * charset reflecting the description */ - int notFlag = 0; - /* Should the set be negated at the end? */ - if (*sdescr == '^') { - notFlag = 1; - ++sdescr; - } - /* Here '-' is meant literally and not to define a range */ - if (*sdescr == '-') { - JimSetBit(charset, '-'); - ++sdescr; - } - while (*sdescr) { - if (sdescr[1] == '-' && sdescr[2] != 0) { - /* Handle range definitions */ - int i_t; - for (i_t = sdescr[0]; i_t <= sdescr[2]; ++i_t) - JimSetBit(charset, (char)i_t); - sdescr += 3; - } else { - /* Handle verbatim character definitions */ - JimSetBit(charset, *sdescr++); - } - } - /* Negate the charset if there was a NOT given */ - for (i = 0; notFlag && i < sizeof(charset); ++i) - charset[i] = ~charset[i]; - } - /* And after all the mess above, the real work begin ... */ - while (str && *str) { - if (!sdescr && isspace((int)*str)) - break; /* EOS via WS if unspecified */ - if (JimTestBit(charset, *str)) *buffer++ = *str++; - else break; /* EOS via mismatch if specified scanning */ - } - *buffer = 0; /* Close the string properly ... */ - result = Jim_NewStringObj(interp, anchor, -1); - Jim_Free(anchor); /* ... and free it afer usage */ - return result; -} - -/* ScanOneEntry will scan one entry out of the string passed as argument. - * It use the sscanf() function for this task. After extracting and - * converting of the value, the count of scanned characters will be - * returned of -1 in case of no conversion tool place and string was - * already scanned thru */ - -static int ScanOneEntry(Jim_Interp *interp, const char *str, long pos, - ScanFmtStringObj *fmtObj, long index_t, Jim_Obj **valObjPtr) -{ -# define MAX_SIZE (sizeof(jim_wide) > sizeof(double) \ - ? sizeof(jim_wide) \ - : sizeof(double)) - char buffer[MAX_SIZE]; - char *value = buffer; - const char *tok; - const ScanFmtPartDescr *descr = &fmtObj->descr[index_t]; - size_t sLen = strlen(&str[pos]), scanned = 0; - size_t anchor = pos; - int i; - - /* First pessimiticly assume, we will not scan anything :-) */ - *valObjPtr = 0; - if (descr->prefix) { - /* There was a prefix given before the conversion, skip it and adjust - * the string-to-be-parsed accordingly */ - for (i = 0; str[pos] && descr->prefix[i]; ++i) { - /* If prefix require, skip WS */ - if (isspace((int)descr->prefix[i])) - while (str[pos] && isspace((int)str[pos])) ++pos; - else if (descr->prefix[i] != str[pos]) - break; /* Prefix do not match here, leave the loop */ - else - ++pos; /* Prefix matched so far, next round */ - } - if (str[pos] == 0) - return -1; /* All of str consumed: EOF condition */ - else if (descr->prefix[i] != 0) - return 0; /* Not whole prefix consumed, no conversion possible */ - } - /* For all but following conversion, skip leading WS */ - if (descr->type != 'c' && descr->type != '[' && descr->type != 'n') - while (isspace((int)str[pos])) ++pos; - /* Determine how much skipped/scanned so far */ - scanned = pos - anchor; - if (descr->type == 'n') { - /* Return pseudo conversion means: how much scanned so far? */ - *valObjPtr = Jim_NewIntObj(interp, anchor + scanned); - } else if (str[pos] == 0) { - /* Cannot scan anything, as str is totally consumed */ - return -1; - } else { - /* Processing of conversions follows ... */ - if (descr->width > 0) { - /* Do not try to scan as fas as possible but only the given width. - * To ensure this, we copy the part that should be scanned. */ - size_t tLen = descr->width > sLen ? sLen : descr->width; - tok = Jim_StrDupLen(&str[pos], tLen); - } else { - /* As no width was given, simply refer to the original string */ - tok = &str[pos]; - } - switch (descr->type) { - case 'c': - *valObjPtr = Jim_NewIntObj(interp, *tok); - scanned += 1; - break; - case 'd': case 'o': case 'x': case 'u': case 'i': { - jim_wide jwvalue = 0; - long lvalue = 0; - char *endp; /* Position where the number finished */ - int base = descr->type == 'o' ? 8 - : descr->type == 'x' ? 16 - : descr->type == 'i' ? 0 - : 10; - - do { - /* Try to scan a number with the given base */ - if (descr->modifier == 'l') - { -#ifdef HAVE_LONG_LONG_INT - jwvalue = JimStrtoll(tok, &endp, base), -#else - jwvalue = strtol(tok, &endp, base), -#endif - memcpy(value, &jwvalue, sizeof(jim_wide)); - } - else - { - if (descr->type == 'u') - lvalue = strtoul(tok, &endp, base); - else - lvalue = strtol(tok, &endp, base); - memcpy(value, &lvalue, sizeof(lvalue)); - } - /* If scanning failed, and base was undetermined, simply - * put it to 10 and try once more. This should catch the - * case where %i begin to parse a number prefix (e.g. - * '0x' but no further digits follows. This will be - * handled as a ZERO followed by a char 'x' by Tcl */ - if (endp == tok && base == 0) base = 10; - else break; - } while (1); - if (endp != tok) { - /* There was some number sucessfully scanned! */ - if (descr->modifier == 'l') - *valObjPtr = Jim_NewIntObj(interp, jwvalue); - else - *valObjPtr = Jim_NewIntObj(interp, lvalue); - /* Adjust the number-of-chars scanned so far */ - scanned += endp - tok; - } else { - /* Nothing was scanned. We have to determine if this - * happened due to e.g. prefix mismatch or input str - * exhausted */ - scanned = *tok ? 0 : -1; - } - break; - } - case 's': case '[': { - *valObjPtr = JimScanAString(interp, descr->arg, tok); - scanned += Jim_Length(*valObjPtr); - break; - } - case 'e': case 'f': case 'g': { - char *endp; - - double dvalue = strtod(tok, &endp); - memcpy(value, &dvalue, sizeof(double)); - if (endp != tok) { - /* There was some number sucessfully scanned! */ - *valObjPtr = Jim_NewDoubleObj(interp, dvalue); - /* Adjust the number-of-chars scanned so far */ - scanned += endp - tok; - } else { - /* Nothing was scanned. We have to determine if this - * happened due to e.g. prefix mismatch or input str - * exhausted */ - scanned = *tok ? 0 : -1; - } - break; - } - } - /* If a substring was allocated (due to pre-defined width) do not - * forget to free it */ - if (tok != &str[pos]) - Jim_Free((char*)tok); - } - return scanned; -} - -/* Jim_ScanString is the workhorse of string scanning. It will scan a given - * string and returns all converted (and not ignored) values in a list back - * to the caller. If an error occured, a NULL pointer will be returned */ - -Jim_Obj *Jim_ScanString(Jim_Interp *interp, Jim_Obj *strObjPtr, - Jim_Obj *fmtObjPtr, int flags) -{ - size_t i, pos; - int scanned = 1; - const char *str = Jim_GetString(strObjPtr, 0); - Jim_Obj *resultList = 0; - Jim_Obj **resultVec =NULL; - int resultc; - Jim_Obj *emptyStr = 0; - ScanFmtStringObj *fmtObj; - - /* If format specification is not an object, convert it! */ - if (fmtObjPtr->typePtr != &scanFmtStringObjType) - SetScanFmtFromAny(interp, fmtObjPtr); - fmtObj = (ScanFmtStringObj*)fmtObjPtr->internalRep.ptr; - /* Check if format specification was valid */ - if (fmtObj->error != 0) { - if (flags & JIM_ERRMSG) - Jim_SetResultString(interp, fmtObj->error, -1); - return 0; - } - /* Allocate a new "shared" empty string for all unassigned conversions */ - emptyStr = Jim_NewEmptyStringObj(interp); - Jim_IncrRefCount(emptyStr); - /* Create a list and fill it with empty strings up to max specified XPG3 */ - resultList = Jim_NewListObj(interp, 0, 0); - if (fmtObj->maxPos > 0) { - for (i = 0; i < fmtObj->maxPos; ++i) - Jim_ListAppendElement(interp, resultList, emptyStr); - JimListGetElements(interp, resultList, &resultc, &resultVec); - } - /* Now handle every partial format description */ - for (i = 0, pos = 0; i < fmtObj->count; ++i) { - ScanFmtPartDescr *descr = &(fmtObj->descr[i]); - Jim_Obj *value = 0; - /* Only last type may be "literal" w/o conversion - skip it! */ - if (descr->type == 0) continue; - /* As long as any conversion could be done, we will proceed */ - if (scanned > 0) - scanned = ScanOneEntry(interp, str, pos, fmtObj, i, &value); - /* In case our first try results in EOF, we will leave */ - if (scanned == -1 && i == 0) - goto eof; - /* Advance next pos-to-be-scanned for the amount scanned already */ - pos += scanned; - /* value == 0 means no conversion took place so take empty string */ - if (value == 0) - value = Jim_NewEmptyStringObj(interp); - /* If value is a non-assignable one, skip it */ - if (descr->pos == -1) { - Jim_FreeNewObj(interp, value); - } else if (descr->pos == 0) - /* Otherwise append it to the result list if no XPG3 was given */ - Jim_ListAppendElement(interp, resultList, value); - else if (resultVec[descr->pos-1] == emptyStr) { - /* But due to given XPG3, put the value into the corr. slot */ - Jim_DecrRefCount(interp, resultVec[descr->pos-1]); - Jim_IncrRefCount(value); - resultVec[descr->pos-1] = value; - } else { - /* Otherwise, the slot was already used - free obj and ERROR */ - Jim_FreeNewObj(interp, value); - goto err; - } - } - Jim_DecrRefCount(interp, emptyStr); - return resultList; -eof: - Jim_DecrRefCount(interp, emptyStr); - Jim_FreeNewObj(interp, resultList); - return (Jim_Obj*)EOF; -err: - Jim_DecrRefCount(interp, emptyStr); - Jim_FreeNewObj(interp, resultList); - return 0; -} - -/* ----------------------------------------------------------------------------- - * Pseudo Random Number Generation - * ---------------------------------------------------------------------------*/ -static void JimPrngSeed(Jim_Interp *interp, const unsigned char *seed, - int seedLen); - -/* Initialize the sbox with the numbers from 0 to 255 */ -static void JimPrngInit(Jim_Interp *interp) -{ - int i; - unsigned int seed[256]; - - interp->prngState = Jim_Alloc(sizeof(Jim_PrngState)); - for (i = 0; i < 256; i++) - seed[i] = (rand() ^ time(NULL) ^ clock()); - JimPrngSeed(interp, (unsigned char*) seed, sizeof(int)*256); -} - -/* Generates N bytes of random data */ -static void JimRandomBytes(Jim_Interp *interp, void *dest, unsigned int len) -{ - Jim_PrngState *prng; - unsigned char *destByte = (unsigned char*) dest; - unsigned int si, sj, x; - - /* initialization, only needed the first time */ - if (interp->prngState == NULL) - JimPrngInit(interp); - prng = interp->prngState; - /* generates 'len' bytes of pseudo-random numbers */ - for (x = 0; x < len; x++) { - prng->i = (prng->i + 1) & 0xff; - si = prng->sbox[prng->i]; - prng->j = (prng->j + si) & 0xff; - sj = prng->sbox[prng->j]; - prng->sbox[prng->i] = sj; - prng->sbox[prng->j] = si; - *destByte++ = prng->sbox[(si + sj)&0xff]; - } -} - -/* Re-seed the generator with user-provided bytes */ -static void JimPrngSeed(Jim_Interp *interp, const unsigned char *seed, - int seedLen) -{ - int i; - unsigned char buf[256]; - Jim_PrngState *prng; - - /* initialization, only needed the first time */ - if (interp->prngState == NULL) - JimPrngInit(interp); - prng = interp->prngState; - - /* Set the sbox[i] with i */ - for (i = 0; i < 256; i++) - prng->sbox[i] = i; - /* Now use the seed to perform a random permutation of the sbox */ - for (i = 0; i < seedLen; i++) { - unsigned char t; - - t = prng->sbox[i&0xFF]; - prng->sbox[i&0xFF] = prng->sbox[seed[i]]; - prng->sbox[seed[i]] = t; - } - prng->i = prng->j = 0; - /* discard the first 256 bytes of stream. */ - JimRandomBytes(interp, buf, 256); -} - -/* ----------------------------------------------------------------------------- - * Dynamic libraries support (WIN32 not supported) - * ---------------------------------------------------------------------------*/ - -#ifdef JIM_DYNLIB -#ifdef WIN32 -#define RTLD_LAZY 0 -void * dlopen(const char *path, int mode) -{ - JIM_NOTUSED(mode); - - return (void *)LoadLibraryA(path); -} -int dlclose(void *handle) -{ - FreeLibrary((HANDLE)handle); - return 0; -} -void *dlsym(void *handle, const char *symbol) -{ - return GetProcAddress((HMODULE)handle, symbol); -} -static char win32_dlerror_string[121]; -const char *dlerror(void) -{ - FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), - LANG_NEUTRAL, win32_dlerror_string, 120, NULL); - return win32_dlerror_string; -} -#endif /* WIN32 */ - -int Jim_LoadLibrary(Jim_Interp *interp, const char *pathName) -{ - Jim_Obj *libPathObjPtr; - int prefixc, i; - void *handle; - int (*onload)(Jim_Interp *interp); - - libPathObjPtr = Jim_GetGlobalVariableStr(interp, "jim_libpath", JIM_NONE); - if (libPathObjPtr == NULL) { - prefixc = 0; - libPathObjPtr = NULL; - } else { - Jim_IncrRefCount(libPathObjPtr); - Jim_ListLength(interp, libPathObjPtr, &prefixc); - } - - for (i = -1; i < prefixc; i++) { - if (i < 0) { - handle = dlopen(pathName, RTLD_LAZY); - } else { - FILE *fp; - char buf[JIM_PATH_LEN]; - const char *prefix; - int prefixlen; - Jim_Obj *prefixObjPtr; - - buf[0] = '\0'; - if (Jim_ListIndex(interp, libPathObjPtr, i, - &prefixObjPtr, JIM_NONE) != JIM_OK) - continue; - prefix = Jim_GetString(prefixObjPtr, &prefixlen); - if (prefixlen + strlen(pathName) + 1 >= JIM_PATH_LEN) - continue; - if (*pathName == '/') { - strcpy(buf, pathName); - } - else if (prefixlen && prefix[prefixlen-1] == '/') - sprintf(buf, "%s%s", prefix, pathName); - else - sprintf(buf, "%s/%s", prefix, pathName); - fp = fopen(buf, "r"); - if (fp == NULL) - continue; - fclose(fp); - handle = dlopen(buf, RTLD_LAZY); - } - if (handle == NULL) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "error loading extension \"", pathName, - "\": ", dlerror(), NULL); - if (i < 0) - continue; - goto err; - } - if ((onload = dlsym(handle, "Jim_OnLoad")) == NULL) { - Jim_SetResultString(interp, - "No Jim_OnLoad symbol found on extension", -1); - goto err; - } - if (onload(interp) == JIM_ERR) { - dlclose(handle); - goto err; - } - Jim_SetEmptyResult(interp); - if (libPathObjPtr != NULL) - Jim_DecrRefCount(interp, libPathObjPtr); - return JIM_OK; - } -err: - if (libPathObjPtr != NULL) - Jim_DecrRefCount(interp, libPathObjPtr); - return JIM_ERR; -} -#else /* JIM_DYNLIB */ -int Jim_LoadLibrary(Jim_Interp *interp, const char *pathName) -{ - JIM_NOTUSED(interp); - JIM_NOTUSED(pathName); - - Jim_SetResultString(interp, "the Jim binary has no support for [load]", -1); - return JIM_ERR; -} -#endif/* JIM_DYNLIB */ - -/* ----------------------------------------------------------------------------- - * Packages handling - * ---------------------------------------------------------------------------*/ - -#define JIM_PKG_ANY_VERSION -1 - -/* Convert a string of the type "1.2" into an integer. - * MAJOR.MINOR is converted as MAJOR*100 + MINOR, so "1.2" is converted - * to the integer with value 102 */ -static int JimPackageVersionToInt(Jim_Interp *interp, const char *v, - int *intPtr, int flags) -{ - char *copy; - jim_wide major, minor; - char *majorStr, *minorStr, *p; - - if (v[0] == '\0') { - *intPtr = JIM_PKG_ANY_VERSION; - return JIM_OK; - } - - copy = Jim_StrDup(v); - p = strchr(copy, '.'); - if (p == NULL) goto badfmt; - *p = '\0'; - majorStr = copy; - minorStr = p + 1; - - if (Jim_StringToWide(majorStr, &major, 10) != JIM_OK || - Jim_StringToWide(minorStr, &minor, 10) != JIM_OK) - goto badfmt; - *intPtr = (int)(major*100 + minor); - Jim_Free(copy); - return JIM_OK; - -badfmt: - Jim_Free(copy); - if (flags & JIM_ERRMSG) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "invalid package version '", v, "'", NULL); - } - return JIM_ERR; -} - -#define JIM_MATCHVER_EXACT (1 << JIM_PRIV_FLAG_SHIFT) -static int JimPackageMatchVersion(int needed, int actual, int flags) -{ - if (needed == JIM_PKG_ANY_VERSION) return 1; - if (flags & JIM_MATCHVER_EXACT) { - return needed == actual; - } else { - return needed/100 == actual/100 && (needed <= actual); - } -} - -int Jim_PackageProvide(Jim_Interp *interp, const char *name, const char *ver, - int flags) -{ - int intVersion; - /* Check if the version format is ok */ - if (JimPackageVersionToInt(interp, ver, &intVersion, JIM_ERRMSG) != JIM_OK) - return JIM_ERR; - /* If the package was already provided returns an error. */ - if (Jim_FindHashEntry(&interp->packages, name) != NULL) { - if (flags & JIM_ERRMSG) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "package '", name, "' was already provided", NULL); - } - return JIM_ERR; - } - Jim_AddHashEntry(&interp->packages, name, (char*) ver); - return JIM_OK; -} - -#ifndef JIM_ANSIC - -#ifndef WIN32 -# include <sys/types.h> -# include <dirent.h> -#else -# include <io.h> -/* Posix dirent.h compatiblity layer for WIN32. - * Copyright Kevlin Henney, 1997, 2003. All rights reserved. - * Copyright Salvatore Sanfilippo ,2005. - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose is hereby granted without fee, provided - * that this copyright and permissions notice appear in all copies and - * derivatives. - * - * This software is supplied "as is" without express or implied warranty. - * This software was modified by Salvatore Sanfilippo for the Jim Interpreter. - */ - -struct dirent { - char *d_name; -}; - -typedef struct DIR { - long handle; /* -1 for failed rewind */ - struct _finddata_t info; - struct dirent result; /* d_name null iff first time */ - char *name; /* null-terminated char string */ -} DIR; - -DIR *opendir(const char *name) -{ - DIR *dir = 0; - - if (name && name[0]) { - size_t base_length = strlen(name); - const char *all = /* search pattern must end with suitable wildcard */ - strchr("/\\", name[base_length - 1]) ? "*" : "/*"; - - if ((dir = (DIR *) Jim_Alloc(sizeof *dir)) != 0 && - (dir->name = (char *) Jim_Alloc(base_length + strlen(all) + 1)) != 0) - { - strcat(strcpy(dir->name, name), all); - - if ((dir->handle = (long) _findfirst(dir->name, &dir->info)) != -1) - dir->result.d_name = 0; - else { /* rollback */ - Jim_Free(dir->name); - Jim_Free(dir); - dir = 0; - } - } else { /* rollback */ - Jim_Free(dir); - dir = 0; - errno = ENOMEM; - } - } else { - errno = EINVAL; - } - return dir; -} - -int closedir(DIR *dir) -{ - int result = -1; - - if (dir) { - if (dir->handle != -1) - result = _findclose(dir->handle); - Jim_Free(dir->name); - Jim_Free(dir); - } - if (result == -1) /* map all errors to EBADF */ - errno = EBADF; - return result; -} - -struct dirent *readdir(DIR *dir) -{ - struct dirent *result = 0; - - if (dir && dir->handle != -1) { - if (!dir->result.d_name || _findnext(dir->handle, &dir->info) != -1) { - result = &dir->result; - result->d_name = dir->info.name; - } - } else { - errno = EBADF; - } - return result; -} - -#endif /* WIN32 */ - -static char *JimFindBestPackage(Jim_Interp *interp, char **prefixes, - int prefixc, const char *pkgName, int pkgVer, int flags) -{ - int bestVer = -1, i; - int pkgNameLen = strlen(pkgName); - char *bestPackage = NULL; - struct dirent *de; - - for (i = 0; i < prefixc; i++) { - DIR *dir; - char buf[JIM_PATH_LEN]; - int prefixLen; - - if (prefixes[i] == NULL) continue; - strncpy(buf, prefixes[i], JIM_PATH_LEN); - buf[JIM_PATH_LEN-1] = '\0'; - prefixLen = strlen(buf); - if (prefixLen && buf[prefixLen-1] == '/') - buf[prefixLen-1] = '\0'; - - if ((dir = opendir(buf)) == NULL) continue; - while ((de = readdir(dir)) != NULL) { - char *fileName = de->d_name; - int fileNameLen = strlen(fileName); - - if (strncmp(fileName, "jim-", 4) == 0 && - strncmp(fileName + 4, pkgName, pkgNameLen) == 0 && - *(fileName + 4+pkgNameLen) == '-' && - fileNameLen > 4 && /* note that this is not really useful */ - (strncmp(fileName + fileNameLen-4, ".tcl", 4) == 0 || - strncmp(fileName + fileNameLen-4, ".dll", 4) == 0 || - strncmp(fileName + fileNameLen-3, ".so", 3) == 0)) - { - char ver[6]; /* xx.yy < nulterm> */ - char *p = strrchr(fileName, '.'); - int verLen, fileVer; - - verLen = p - (fileName + 4+pkgNameLen + 1); - if (verLen < 3 || verLen > 5) continue; - memcpy(ver, fileName + 4+pkgNameLen + 1, verLen); - ver[verLen] = '\0'; - if (JimPackageVersionToInt(interp, ver, &fileVer, JIM_NONE) - != JIM_OK) continue; - if (JimPackageMatchVersion(pkgVer, fileVer, flags) && - (bestVer == -1 || bestVer < fileVer)) - { - bestVer = fileVer; - Jim_Free(bestPackage); - bestPackage = Jim_Alloc(strlen(buf) + strlen(fileName) + 2); - sprintf(bestPackage, "%s/%s", buf, fileName); - } - } - } - closedir(dir); - } - return bestPackage; -} - -#else /* JIM_ANSIC */ - -static char *JimFindBestPackage(Jim_Interp *interp, char **prefixes, - int prefixc, const char *pkgName, int pkgVer, int flags) -{ - JIM_NOTUSED(interp); - JIM_NOTUSED(prefixes); - JIM_NOTUSED(prefixc); - JIM_NOTUSED(pkgName); - JIM_NOTUSED(pkgVer); - JIM_NOTUSED(flags); - return NULL; -} - -#endif /* JIM_ANSIC */ - -/* Search for a suitable package under every dir specified by jim_libpath - * and load it if possible. If a suitable package was loaded with success - * JIM_OK is returned, otherwise JIM_ERR is returned. */ -static int JimLoadPackage(Jim_Interp *interp, const char *name, int ver, - int flags) -{ - Jim_Obj *libPathObjPtr; - char **prefixes, *best; - int prefixc, i, retCode = JIM_OK; - - libPathObjPtr = Jim_GetGlobalVariableStr(interp, "jim_libpath", JIM_NONE); - if (libPathObjPtr == NULL) { - prefixc = 0; - libPathObjPtr = NULL; - } else { - Jim_IncrRefCount(libPathObjPtr); - Jim_ListLength(interp, libPathObjPtr, &prefixc); - } - - prefixes = Jim_Alloc(sizeof(char*)*prefixc); - for (i = 0; i < prefixc; i++) { - Jim_Obj *prefixObjPtr; - if (Jim_ListIndex(interp, libPathObjPtr, i, - &prefixObjPtr, JIM_NONE) != JIM_OK) - { - prefixes[i] = NULL; - continue; - } - prefixes[i] = Jim_StrDup(Jim_GetString(prefixObjPtr, NULL)); - } - /* Scan every directory to find the "best" package. */ - best = JimFindBestPackage(interp, prefixes, prefixc, name, ver, flags); - if (best != NULL) { - char *p = strrchr(best, '.'); - /* Try to load/source it */ - if (p && strcmp(p, ".tcl") == 0) { - retCode = Jim_EvalFile(interp, best); - } else { - retCode = Jim_LoadLibrary(interp, best); - } - } else { - retCode = JIM_ERR; - } - Jim_Free(best); - for (i = 0; i < prefixc; i++) - Jim_Free(prefixes[i]); - Jim_Free(prefixes); - if (libPathObjPtr) - Jim_DecrRefCount(interp, libPathObjPtr); - return retCode; -} - -const char *Jim_PackageRequire(Jim_Interp *interp, const char *name, - const char *ver, int flags) -{ - Jim_HashEntry *he; - int requiredVer; - - /* Start with an empty error string */ - Jim_SetResultString(interp, "", 0); - - if (JimPackageVersionToInt(interp, ver, &requiredVer, JIM_ERRMSG) != JIM_OK) - return NULL; - he = Jim_FindHashEntry(&interp->packages, name); - if (he == NULL) { - /* Try to load the package. */ - if (JimLoadPackage(interp, name, requiredVer, flags) == JIM_OK) { - he = Jim_FindHashEntry(&interp->packages, name); - if (he == NULL) { - return "?"; - } - return he->val; - } - /* No way... return an error. */ - if (flags & JIM_ERRMSG) { - int len; - Jim_GetString(Jim_GetResult(interp), &len); - Jim_AppendStrings(interp, Jim_GetResult(interp), len ? "\n" : "", - "Can't find package '", name, "'", NULL); - } - return NULL; - } else { - int actualVer; - if (JimPackageVersionToInt(interp, he->val, &actualVer, JIM_ERRMSG) - != JIM_OK) - { - return NULL; - } - /* Check if version matches. */ - if (JimPackageMatchVersion(requiredVer, actualVer, flags) == 0) { - Jim_AppendStrings(interp, Jim_GetResult(interp), - "Package '", name, "' already loaded, but with version ", - he->val, NULL); - return NULL; - } - return he->val; - } -} - -/* ----------------------------------------------------------------------------- - * Eval - * ---------------------------------------------------------------------------*/ -#define JIM_EVAL_SARGV_LEN 8 /* static arguments vector length */ -#define JIM_EVAL_SINTV_LEN 8 /* static interpolation vector length */ - -static int JimCallProcedure(Jim_Interp *interp, Jim_Cmd *cmd, int argc, - Jim_Obj *const *argv); - -/* Handle calls to the [unknown] command */ -static int JimUnknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv) -{ - Jim_Obj **v, *sv[JIM_EVAL_SARGV_LEN]; - int retCode; - - /* If JimUnknown() is recursively called (e.g. error in the unknown proc, - * done here - */ - if (interp->unknown_called) { - return JIM_ERR; - } - - /* If the [unknown] command does not exists returns - * just now */ - if (Jim_GetCommand(interp, interp->unknown, JIM_NONE) == NULL) - return JIM_ERR; - - /* The object interp->unknown just contains - * the "unknown" string, it is used in order to - * avoid to lookup the unknown command every time - * but instread to cache the result. */ - if (argc + 1 <= JIM_EVAL_SARGV_LEN) - v = sv; - else - v = Jim_Alloc(sizeof(Jim_Obj*)*(argc + 1)); - /* Make a copy of the arguments vector, but shifted on - * the right of one position. The command name of the - * command will be instead the first argument of the - * [unknonw] call. */ - memcpy(v + 1, argv, sizeof(Jim_Obj*)*argc); - v[0] = interp->unknown; - /* Call it */ - interp->unknown_called++; - retCode = Jim_EvalObjVector(interp, argc + 1, v); - interp->unknown_called--; - - /* Clean up */ - if (v != sv) - Jim_Free(v); - return retCode; -} - -/* Eval the object vector 'objv' composed of 'objc' elements. - * Every element is used as single argument. - * Jim_EvalObj() will call this function every time its object - * argument is of "list" type, with no string representation. - * - * This is possible because the string representation of a - * list object generated by the UpdateStringOfList is made - * in a way that ensures that every list element is a different - * command argument. */ -int Jim_EvalObjVector(Jim_Interp *interp, int objc, Jim_Obj *const *objv) -{ - int i, retcode; - Jim_Cmd *cmdPtr; - - /* Incr refcount of arguments. */ - for (i = 0; i < objc; i++) - Jim_IncrRefCount(objv[i]); - /* Command lookup */ - cmdPtr = Jim_GetCommand(interp, objv[0], JIM_ERRMSG); - if (cmdPtr == NULL) { - retcode = JimUnknown(interp, objc, objv); - } else { - /* Call it -- Make sure result is an empty object. */ - Jim_SetEmptyResult(interp); - if (cmdPtr->cmdProc) { - interp->cmdPrivData = cmdPtr->privData; - retcode = cmdPtr->cmdProc(interp, objc, objv); - if (retcode == JIM_ERR_ADDSTACK) { - //JimAppendStackTrace(interp, "", script->fileName, token[i-argc*2].linenr); - retcode = JIM_ERR; - } - } else { - retcode = JimCallProcedure(interp, cmdPtr, objc, objv); - if (retcode == JIM_ERR) { - JimAppendStackTrace(interp, - Jim_GetString(objv[0], NULL), "", 1); - } - } - } - /* Decr refcount of arguments and return the retcode */ - for (i = 0; i < objc; i++) - Jim_DecrRefCount(interp, objv[i]); - return retcode; -} - -/* Interpolate the given tokens into a unique Jim_Obj returned by reference - * via *objPtrPtr. This function is only called by Jim_EvalObj(). - * The returned object has refcount = 0. */ -int Jim_InterpolateTokens(Jim_Interp *interp, ScriptToken *token, - int tokens, Jim_Obj **objPtrPtr) -{ - int totlen = 0, i, retcode; - Jim_Obj **intv; - Jim_Obj *sintv[JIM_EVAL_SINTV_LEN]; - Jim_Obj *objPtr; - char *s; - - if (tokens <= JIM_EVAL_SINTV_LEN) - intv = sintv; - else - intv = Jim_Alloc(sizeof(Jim_Obj*)* - tokens); - /* Compute every token forming the argument - * in the intv objects vector. */ - for (i = 0; i < tokens; i++) { - switch (token[i].type) { - case JIM_TT_ESC: - case JIM_TT_STR: - intv[i] = token[i].objPtr; - break; - case JIM_TT_VAR: - intv[i] = Jim_GetVariable(interp, token[i].objPtr, JIM_ERRMSG); - if (!intv[i]) { - retcode = JIM_ERR; - goto err; - } - break; - case JIM_TT_DICTSUGAR: - intv[i] = Jim_ExpandDictSugar(interp, token[i].objPtr); - if (!intv[i]) { - retcode = JIM_ERR; - goto err; - } - break; - case JIM_TT_CMD: - retcode = Jim_EvalObj(interp, token[i].objPtr); - if (retcode != JIM_OK) - goto err; - intv[i] = Jim_GetResult(interp); - break; - default: - Jim_Panic(interp, - "default token type reached " - "in Jim_InterpolateTokens()."); - break; - } - Jim_IncrRefCount(intv[i]); - /* Make sure there is a valid - * string rep, and add the string - * length to the total legnth. */ - Jim_GetString(intv[i], NULL); - totlen += intv[i]->length; - } - /* Concatenate every token in an unique - * object. */ - objPtr = Jim_NewStringObjNoAlloc(interp, - NULL, 0); - s = objPtr->bytes = Jim_Alloc(totlen + 1); - objPtr->length = totlen; - for (i = 0; i < tokens; i++) { - memcpy(s, intv[i]->bytes, intv[i]->length); - s += intv[i]->length; - Jim_DecrRefCount(interp, intv[i]); - } - objPtr->bytes[totlen] = '\0'; - /* Free the intv vector if not static. */ - if (tokens > JIM_EVAL_SINTV_LEN) - Jim_Free(intv); - *objPtrPtr = objPtr; - return JIM_OK; -err: - i--; - for (; i >= 0; i--) - Jim_DecrRefCount(interp, intv[i]); - if (tokens > JIM_EVAL_SINTV_LEN) - Jim_Free(intv); - return retcode; -} - -/* Helper of Jim_EvalObj() to perform argument expansion. - * Basically this function append an argument to 'argv' - * (and increments argc by reference accordingly), performing - * expansion of the list object if 'expand' is non-zero, or - * just adding objPtr to argv if 'expand' is zero. */ -void Jim_ExpandArgument(Jim_Interp *interp, Jim_Obj ***argv, - int *argcPtr, int expand, Jim_Obj *objPtr) -{ - if (!expand) { - (*argv) = Jim_Realloc(*argv, sizeof(Jim_Obj*)*((*argcPtr) + 1)); - /* refcount of objPtr not incremented because - * we are actually transfering a reference from - * the old 'argv' to the expanded one. */ - (*argv)[*argcPtr] = objPtr; - (*argcPtr)++; - } else { - int len, i; - - Jim_ListLength(interp, objPtr, &len); - (*argv) = Jim_Realloc(*argv, sizeof(Jim_Obj*)*((*argcPtr) + len)); - for (i = 0; i < len; i++) { - (*argv)[*argcPtr] = objPtr->internalRep.listValue.ele[i]; - Jim_IncrRefCount(objPtr->internalRep.listValue.ele[i]); - (*argcPtr)++; - } - /* The original object reference is no longer needed, - * after the expansion it is no longer present on - * the argument vector, but the single elements are - * in its place. */ - Jim_DecrRefCount(interp, objPtr); - } -} - -int Jim_EvalObj(Jim_Interp *interp, Jim_Obj *scriptObjPtr) -{ - int i, j = 0, len; - ScriptObj *script; - ScriptToken *token; - int *cs; /* command structure array */ - int retcode = JIM_OK; - Jim_Obj *sargv[JIM_EVAL_SARGV_LEN], **argv = NULL, *tmpObjPtr; - - interp->errorFlag = 0; - - /* If the object is of type "list" and there is no - * string representation for this object, we can call - * a specialized version of Jim_EvalObj() */ - if (scriptObjPtr->typePtr == &listObjType && - scriptObjPtr->internalRep.listValue.len && - scriptObjPtr->bytes == NULL) { - Jim_IncrRefCount(scriptObjPtr); - retcode = Jim_EvalObjVector(interp, - scriptObjPtr->internalRep.listValue.len, - scriptObjPtr->internalRep.listValue.ele); - Jim_DecrRefCount(interp, scriptObjPtr); - return retcode; - } - - Jim_IncrRefCount(scriptObjPtr); /* Make sure it's shared. */ - script = Jim_GetScript(interp, scriptObjPtr); - /* Now we have to make sure the internal repr will not be - * freed on shimmering. - * - * Think for example to this: - * - * set x {llength $x; ... some more code ...}; eval $x - * - * In order to preserve the internal rep, we increment the - * inUse field of the script internal rep structure. */ - script->inUse++; - - token = script->token; - len = script->len; - cs = script->cmdStruct; - i = 0; /* 'i' is the current token index. */ - - /* Reset the interpreter result. This is useful to - * return the emtpy result in the case of empty program. */ - Jim_SetEmptyResult(interp); - - /* Execute every command sequentially, returns on - * error (i.e. if a command does not return JIM_OK) */ - while (i < len) { - int expand = 0; - int argc = *cs++; /* Get the number of arguments */ - Jim_Cmd *cmd; - - /* Set the expand flag if needed. */ - if (argc == -1) { - expand++; - argc = *cs++; - } - /* Allocate the arguments vector */ - if (argc <= JIM_EVAL_SARGV_LEN) - argv = sargv; - else - argv = Jim_Alloc(sizeof(Jim_Obj*)*argc); - /* Populate the arguments objects. */ - for (j = 0; j < argc; j++) { - int tokens = *cs++; - - /* tokens is negative if expansion is needed. - * for this argument. */ - if (tokens < 0) { - tokens = (-tokens)-1; - i++; - } - if (tokens == 1) { - /* Fast path if the token does not - * need interpolation */ - switch (token[i].type) { - case JIM_TT_ESC: - case JIM_TT_STR: - argv[j] = token[i].objPtr; - break; - case JIM_TT_VAR: - tmpObjPtr = Jim_GetVariable(interp, token[i].objPtr, - JIM_ERRMSG); - if (!tmpObjPtr) { - retcode = JIM_ERR; - goto err; - } - argv[j] = tmpObjPtr; - break; - case JIM_TT_DICTSUGAR: - tmpObjPtr = Jim_ExpandDictSugar(interp, token[i].objPtr); - if (!tmpObjPtr) { - retcode = JIM_ERR; - goto err; - } - argv[j] = tmpObjPtr; - break; - case JIM_TT_CMD: - retcode = Jim_EvalObj(interp, token[i].objPtr); - if (retcode != JIM_OK) - goto err; - argv[j] = Jim_GetResult(interp); - break; - default: - Jim_Panic(interp, - "default token type reached " - "in Jim_EvalObj()."); - break; - } - Jim_IncrRefCount(argv[j]); - i += 2; - } else { - /* For interpolation we call an helper - * function doing the work for us. */ - if ((retcode = Jim_InterpolateTokens(interp, - token + i, tokens, &tmpObjPtr)) != JIM_OK) - { - goto err; - } - argv[j] = tmpObjPtr; - Jim_IncrRefCount(argv[j]); - i += tokens + 1; - } - } - /* Handle {expand} expansion */ - if (expand) { - int *ecs = cs - argc; - int eargc = 0; - Jim_Obj **eargv = NULL; - - for (j = 0; j < argc; j++) { - Jim_ExpandArgument(interp, &eargv, &eargc, - ecs[j] < 0, argv[j]); - } - if (argv != sargv) - Jim_Free(argv); - argc = eargc; - argv = eargv; - j = argc; - if (argc == 0) { - /* Nothing to do with zero args. */ - Jim_Free(eargv); - continue; - } - } - /* Lookup the command to call */ - cmd = Jim_GetCommand(interp, argv[0], JIM_ERRMSG); - if (cmd != NULL) { - /* Call it -- Make sure result is an empty object. */ - Jim_SetEmptyResult(interp); - if (cmd->cmdProc) { - interp->cmdPrivData = cmd->privData; - retcode = cmd->cmdProc(interp, argc, argv); - if ((retcode == JIM_ERR)||(retcode == JIM_ERR_ADDSTACK)) { - JimAppendStackTrace(interp, "", script->fileName, token[i-argc*2].linenr); - retcode = JIM_ERR; - } - } else { - retcode = JimCallProcedure(interp, cmd, argc, argv); - if (retcode == JIM_ERR) { - JimAppendStackTrace(interp, - Jim_GetString(argv[0], NULL), script->fileName, - token[i-argc*2].linenr); - } - } - } else { - /* Call [unknown] */ - retcode = JimUnknown(interp, argc, argv); - if (retcode == JIM_ERR) { - JimAppendStackTrace(interp, - "", script->fileName, - token[i-argc*2].linenr); - } - } - if (retcode != JIM_OK) { - i -= argc*2; /* point to the command name. */ - goto err; - } - /* Decrement the arguments count */ - for (j = 0; j < argc; j++) { - Jim_DecrRefCount(interp, argv[j]); - } - - if (argv != sargv) { - Jim_Free(argv); - argv = NULL; - } - } - /* Note that we don't have to decrement inUse, because the - * following code transfers our use of the reference again to - * the script object. */ - j = 0; /* on normal termination, the argv array is already - Jim_DecrRefCount-ed. */ -err: - /* Handle errors. */ - if (retcode == JIM_ERR && !interp->errorFlag) { - interp->errorFlag = 1; - JimSetErrorFileName(interp, script->fileName); - JimSetErrorLineNumber(interp, token[i].linenr); - JimResetStackTrace(interp); - } - Jim_FreeIntRep(interp, scriptObjPtr); - scriptObjPtr->typePtr = &scriptObjType; - Jim_SetIntRepPtr(scriptObjPtr, script); - Jim_DecrRefCount(interp, scriptObjPtr); - for (i = 0; i < j; i++) { - Jim_DecrRefCount(interp, argv[i]); - } - if (argv != sargv) - Jim_Free(argv); - return retcode; -} - -/* Call a procedure implemented in Tcl. - * It's possible to speed-up a lot this function, currently - * the callframes are not cached, but allocated and - * destroied every time. What is expecially costly is - * to create/destroy the local vars hash table every time. - * - * This can be fixed just implementing callframes caching - * in JimCreateCallFrame() and JimFreeCallFrame(). */ -int JimCallProcedure(Jim_Interp *interp, Jim_Cmd *cmd, int argc, - Jim_Obj *const *argv) -{ - int i, retcode; - Jim_CallFrame *callFramePtr; - int num_args; - - /* Check arity */ - if (argc < cmd->arityMin || (cmd->arityMax != -1 && - argc > cmd->arityMax)) { - Jim_Obj *objPtr = Jim_NewEmptyStringObj(interp); - Jim_AppendStrings(interp, objPtr, - "wrong # args: should be \"", Jim_GetString(argv[0], NULL), - (cmd->arityMin > 1) ? " " : "", - Jim_GetString(cmd->argListObjPtr, NULL), "\"", NULL); - Jim_SetResult(interp, objPtr); - return JIM_ERR; - } - /* Check if there are too nested calls */ - if (interp->numLevels == interp->maxNestingDepth) { - Jim_SetResultString(interp, - "Too many nested calls. Infinite recursion?", -1); - return JIM_ERR; - } - /* Create a new callframe */ - callFramePtr = JimCreateCallFrame(interp); - callFramePtr->parentCallFrame = interp->framePtr; - callFramePtr->argv = argv; - callFramePtr->argc = argc; - callFramePtr->procArgsObjPtr = cmd->argListObjPtr; - callFramePtr->procBodyObjPtr = cmd->bodyObjPtr; - callFramePtr->staticVars = cmd->staticVars; - Jim_IncrRefCount(cmd->argListObjPtr); - Jim_IncrRefCount(cmd->bodyObjPtr); - interp->framePtr = callFramePtr; - interp->numLevels ++; - - /* Set arguments */ - Jim_ListLength(interp, cmd->argListObjPtr, &num_args); - - /* If last argument is 'args', don't set it here */ - if (cmd->arityMax == -1) { - num_args--; - } - - for (i = 0; i < num_args; i++) { - Jim_Obj *argObjPtr=NULL; - Jim_Obj *nameObjPtr=NULL; - Jim_Obj *valueObjPtr=NULL; - - Jim_ListIndex(interp, cmd->argListObjPtr, i, &argObjPtr, JIM_NONE); - if (i + 1 >= cmd->arityMin) { - /* The name is the first element of the list */ - Jim_ListIndex(interp, argObjPtr, 0, &nameObjPtr, JIM_NONE); - } - else { - /* The element arg is the name */ - nameObjPtr = argObjPtr; - } - - if (i + 1 >= argc) { - /* No more values, so use default */ - /* The value is the second element of the list */ - Jim_ListIndex(interp, argObjPtr, 1, &valueObjPtr, JIM_NONE); - } - else { - valueObjPtr = argv[i + 1]; - } - Jim_SetVariable(interp, nameObjPtr, valueObjPtr); - } - /* Set optional arguments */ - if (cmd->arityMax == -1) { - Jim_Obj *listObjPtr=NULL, *objPtr=NULL; - - i++; - listObjPtr = Jim_NewListObj(interp, argv + i, argc-i); - Jim_ListIndex(interp, cmd->argListObjPtr, num_args, &objPtr, JIM_NONE); - Jim_SetVariable(interp, objPtr, listObjPtr); - } - /* Eval the body */ - retcode = Jim_EvalObj(interp, cmd->bodyObjPtr); - - /* Destroy the callframe */ - interp->numLevels --; - interp->framePtr = interp->framePtr->parentCallFrame; - if (callFramePtr->vars.size != JIM_HT_INITIAL_SIZE) { - JimFreeCallFrame(interp, callFramePtr, JIM_FCF_NONE); - } else { - JimFreeCallFrame(interp, callFramePtr, JIM_FCF_NOHT); - } - /* Handle the JIM_EVAL return code */ - if (retcode == JIM_EVAL && interp->evalRetcodeLevel != interp->numLevels) { - int savedLevel = interp->evalRetcodeLevel; - - interp->evalRetcodeLevel = interp->numLevels; - while (retcode == JIM_EVAL) { - Jim_Obj *resultScriptObjPtr = Jim_GetResult(interp); - Jim_IncrRefCount(resultScriptObjPtr); - retcode = Jim_EvalObj(interp, resultScriptObjPtr); - Jim_DecrRefCount(interp, resultScriptObjPtr); - } - interp->evalRetcodeLevel = savedLevel; - } - /* Handle the JIM_RETURN return code */ - if (retcode == JIM_RETURN) { - retcode = interp->returnCode; - interp->returnCode = JIM_OK; - } - return retcode; -} - -int Jim_Eval_Named(Jim_Interp *interp, const char *script, const char *filename, int lineno) -{ - int retval; - Jim_Obj *scriptObjPtr; - - scriptObjPtr = Jim_NewStringObj(interp, script, -1); - Jim_IncrRefCount(scriptObjPtr); - - - if (filename) { - JimSetSourceInfo(interp, scriptObjPtr, filename, lineno); - } - - retval = Jim_EvalObj(interp, scriptObjPtr); - Jim_DecrRefCount(interp, scriptObjPtr); - return retval; -} - -int Jim_Eval(Jim_Interp *interp, const char *script) -{ - return Jim_Eval_Named(interp, script, NULL, 0); -} - - - -/* Execute script in the scope of the global level */ -int Jim_EvalGlobal(Jim_Interp *interp, const char *script) -{ - Jim_CallFrame *savedFramePtr; - int retval; - - savedFramePtr = interp->framePtr; - interp->framePtr = interp->topFramePtr; - retval = Jim_Eval(interp, script); - interp->framePtr = savedFramePtr; - return retval; -} - -int Jim_EvalObjBackground(Jim_Interp *interp, Jim_Obj *scriptObjPtr) -{ - Jim_CallFrame *savedFramePtr; - int retval; - - savedFramePtr = interp->framePtr; - interp->framePtr = interp->topFramePtr; - retval = Jim_EvalObj(interp, scriptObjPtr); - interp->framePtr = savedFramePtr; - /* Try to report the error (if any) via the bgerror proc */ - if (retval != JIM_OK) { - Jim_Obj *objv[2]; - - objv[0] = Jim_NewStringObj(interp, "bgerror", -1); - objv[1] = Jim_GetResult(interp); - Jim_IncrRefCount(objv[0]); - Jim_IncrRefCount(objv[1]); - if (Jim_EvalObjVector(interp, 2, objv) != JIM_OK) { - /* Report the error to stderr. */ - Jim_fprintf(interp, interp->cookie_stderr, "Background error:" JIM_NL); - Jim_PrintErrorMessage(interp); - } - Jim_DecrRefCount(interp, objv[0]); - Jim_DecrRefCount(interp, objv[1]); - } - return retval; -} - -int Jim_EvalFile(Jim_Interp *interp, const char *filename) -{ - char *prg = NULL; - FILE *fp; - int nread, totread, maxlen, buflen; - int retval; - Jim_Obj *scriptObjPtr; - - if ((fp = fopen(filename, "r")) == NULL) { - const int cwd_len = 2048; - char *cwd = malloc(cwd_len); - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - if (!getcwd(cwd, cwd_len)) strcpy(cwd, "unknown"); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "Error loading script \"", filename, "\"", - " cwd: ", cwd, - " err: ", strerror(errno), NULL); - free(cwd); - return JIM_ERR; - } - buflen = 1024; - maxlen = totread = 0; - while (1) { - if (maxlen < totread + buflen + 1) { - maxlen = totread + buflen + 1; - prg = Jim_Realloc(prg, maxlen); - } - /* do not use Jim_fread() - this is really a file */ - if ((nread = fread(prg + totread, 1, buflen, fp)) == 0) break; - totread += nread; - } - prg[totread] = '\0'; - /* do not use Jim_fclose() - this is really a file */ - fclose(fp); - - scriptObjPtr = Jim_NewStringObjNoAlloc(interp, prg, totread); - JimSetSourceInfo(interp, scriptObjPtr, filename, 1); - Jim_IncrRefCount(scriptObjPtr); - retval = Jim_EvalObj(interp, scriptObjPtr); - Jim_DecrRefCount(interp, scriptObjPtr); - return retval; -} - -/* ----------------------------------------------------------------------------- - * Subst - * ---------------------------------------------------------------------------*/ -static int JimParseSubstStr(struct JimParserCtx *pc) -{ - pc->tstart = pc->p; - pc->tline = pc->linenr; - while (*pc->p && *pc->p != '$' && *pc->p != '[') { - pc->p++; pc->len--; - } - pc->tend = pc->p-1; - pc->tt = JIM_TT_ESC; - return JIM_OK; -} - -static int JimParseSubst(struct JimParserCtx *pc, int flags) -{ - int retval; - - if (pc->len == 0) { - pc->tstart = pc->tend = pc->p; - pc->tline = pc->linenr; - pc->tt = JIM_TT_EOL; - pc->eof = 1; - return JIM_OK; - } - switch (*pc->p) { - case '[': - retval = JimParseCmd(pc); - if (flags & JIM_SUBST_NOCMD) { - pc->tstart--; - pc->tend++; - pc->tt = (flags & JIM_SUBST_NOESC) ? - JIM_TT_STR : JIM_TT_ESC; - } - return retval; - break; - case '$': - if (JimParseVar(pc) == JIM_ERR) { - pc->tstart = pc->tend = pc->p++; pc->len--; - pc->tline = pc->linenr; - pc->tt = JIM_TT_STR; - } else { - if (flags & JIM_SUBST_NOVAR) { - pc->tstart--; - if (flags & JIM_SUBST_NOESC) - pc->tt = JIM_TT_STR; - else - pc->tt = JIM_TT_ESC; - if (*pc->tstart == '{') { - pc->tstart--; - if (*(pc->tend + 1)) - pc->tend++; - } - } - } - break; - default: - retval = JimParseSubstStr(pc); - if (flags & JIM_SUBST_NOESC) - pc->tt = JIM_TT_STR; - return retval; - break; - } - return JIM_OK; -} - -/* The subst object type reuses most of the data structures and functions - * of the script object. Script's data structures are a bit more complex - * for what is needed for [subst]itution tasks, but the reuse helps to - * deal with a single data structure at the cost of some more memory - * usage for substitutions. */ -static Jim_ObjType substObjType = { - "subst", - FreeScriptInternalRep, - DupScriptInternalRep, - NULL, - JIM_TYPE_REFERENCES, -}; - -/* This method takes the string representation of an object - * as a Tcl string where to perform [subst]itution, and generates - * the pre-parsed internal representation. */ -int SetSubstFromAny(Jim_Interp *interp, struct Jim_Obj *objPtr, int flags) -{ - int scriptTextLen; - const char *scriptText = Jim_GetString(objPtr, &scriptTextLen); - struct JimParserCtx parser; - struct ScriptObj *script = Jim_Alloc(sizeof(*script)); - - script->len = 0; - script->csLen = 0; - script->commands = 0; - script->token = NULL; - script->cmdStruct = NULL; - script->inUse = 1; - script->substFlags = flags; - script->fileName = NULL; - - JimParserInit(&parser, scriptText, scriptTextLen, 1); - while (1) { - char *token; - int len, type, linenr; - - JimParseSubst(&parser, flags); - if (JimParserEof(&parser)) break; - token = JimParserGetToken(&parser, &len, &type, &linenr); - ScriptObjAddToken(interp, script, token, len, type, - NULL, linenr); - } - /* Free the old internal rep and set the new one. */ - Jim_FreeIntRep(interp, objPtr); - Jim_SetIntRepPtr(objPtr, script); - objPtr->typePtr = &scriptObjType; - return JIM_OK; -} - -ScriptObj *Jim_GetSubst(Jim_Interp *interp, Jim_Obj *objPtr, int flags) -{ - struct ScriptObj *script = Jim_GetIntRepPtr(objPtr); - - if (objPtr->typePtr != &substObjType || script->substFlags != flags) - SetSubstFromAny(interp, objPtr, flags); - return (ScriptObj*) Jim_GetIntRepPtr(objPtr); -} - -/* Performs commands,variables,blackslashes substitution, - * storing the result object (with refcount 0) into - * resObjPtrPtr. */ -int Jim_SubstObj(Jim_Interp *interp, Jim_Obj *substObjPtr, - Jim_Obj **resObjPtrPtr, int flags) -{ - ScriptObj *script; - ScriptToken *token; - int i, len, retcode = JIM_OK; - Jim_Obj *resObjPtr, *savedResultObjPtr; - - script = Jim_GetSubst(interp, substObjPtr, flags); -#ifdef JIM_OPTIMIZATION - /* Fast path for a very common case with array-alike syntax, - * that's: $foo($bar) */ - if (script->len == 1 && script->token[0].type == JIM_TT_VAR) { - Jim_Obj *varObjPtr = script->token[0].objPtr; - - Jim_IncrRefCount(varObjPtr); - resObjPtr = Jim_GetVariable(interp, varObjPtr, JIM_ERRMSG); - if (resObjPtr == NULL) { - Jim_DecrRefCount(interp, varObjPtr); - return JIM_ERR; - } - Jim_DecrRefCount(interp, varObjPtr); - *resObjPtrPtr = resObjPtr; - return JIM_OK; - } -#endif - - Jim_IncrRefCount(substObjPtr); /* Make sure it's shared. */ - /* In order to preserve the internal rep, we increment the - * inUse field of the script internal rep structure. */ - script->inUse++; - - token = script->token; - len = script->len; - - /* Save the interp old result, to set it again before - * to return. */ - savedResultObjPtr = interp->result; - Jim_IncrRefCount(savedResultObjPtr); - - /* Perform the substitution. Starts with an empty object - * and adds every token (performing the appropriate - * var/command/escape substitution). */ - resObjPtr = Jim_NewStringObj(interp, "", 0); - for (i = 0; i < len; i++) { - Jim_Obj *objPtr; - - switch (token[i].type) { - case JIM_TT_STR: - case JIM_TT_ESC: - Jim_AppendObj(interp, resObjPtr, token[i].objPtr); - break; - case JIM_TT_VAR: - objPtr = Jim_GetVariable(interp, token[i].objPtr, JIM_ERRMSG); - if (objPtr == NULL) goto err; - Jim_IncrRefCount(objPtr); - Jim_AppendObj(interp, resObjPtr, objPtr); - Jim_DecrRefCount(interp, objPtr); - break; - case JIM_TT_DICTSUGAR: - objPtr = Jim_ExpandDictSugar(interp, token[i].objPtr); - if (!objPtr) { - retcode = JIM_ERR; - goto err; - } - break; - case JIM_TT_CMD: - if (Jim_EvalObj(interp, token[i].objPtr) != JIM_OK) - goto err; - Jim_AppendObj(interp, resObjPtr, interp->result); - break; - default: - Jim_Panic(interp, - "default token type (%d) reached " - "in Jim_SubstObj().", token[i].type); - break; - } - } -ok: - if (retcode == JIM_OK) - Jim_SetResult(interp, savedResultObjPtr); - Jim_DecrRefCount(interp, savedResultObjPtr); - /* Note that we don't have to decrement inUse, because the - * following code transfers our use of the reference again to - * the script object. */ - Jim_FreeIntRep(interp, substObjPtr); - substObjPtr->typePtr = &scriptObjType; - Jim_SetIntRepPtr(substObjPtr, script); - Jim_DecrRefCount(interp, substObjPtr); - *resObjPtrPtr = resObjPtr; - return retcode; -err: - Jim_FreeNewObj(interp, resObjPtr); - retcode = JIM_ERR; - goto ok; -} - -/* ----------------------------------------------------------------------------- - * API Input/Export functions - * ---------------------------------------------------------------------------*/ - -int Jim_GetApi(Jim_Interp *interp, const char *funcname, void *targetPtrPtr) -{ - Jim_HashEntry *he; - - he = Jim_FindHashEntry(&interp->stub, funcname); - if (!he) - return JIM_ERR; - memcpy(targetPtrPtr, &he->val, sizeof(void*)); - return JIM_OK; -} - -int Jim_RegisterApi(Jim_Interp *interp, const char *funcname, void *funcptr) -{ - return Jim_AddHashEntry(&interp->stub, funcname, funcptr); -} - -#define JIM_REGISTER_API(name) \ - Jim_RegisterApi(interp, "Jim_" #name, (void *)Jim_ ## name) - -void JimRegisterCoreApi(Jim_Interp *interp) -{ - interp->getApiFuncPtr = Jim_GetApi; - JIM_REGISTER_API(Alloc); - JIM_REGISTER_API(Free); - JIM_REGISTER_API(Eval); - JIM_REGISTER_API(Eval_Named); - JIM_REGISTER_API(EvalGlobal); - JIM_REGISTER_API(EvalFile); - JIM_REGISTER_API(EvalObj); - JIM_REGISTER_API(EvalObjBackground); - JIM_REGISTER_API(EvalObjVector); - JIM_REGISTER_API(InitHashTable); - JIM_REGISTER_API(ExpandHashTable); - JIM_REGISTER_API(AddHashEntry); - JIM_REGISTER_API(ReplaceHashEntry); - JIM_REGISTER_API(DeleteHashEntry); - JIM_REGISTER_API(FreeHashTable); - JIM_REGISTER_API(FindHashEntry); - JIM_REGISTER_API(ResizeHashTable); - JIM_REGISTER_API(GetHashTableIterator); - JIM_REGISTER_API(NextHashEntry); - JIM_REGISTER_API(NewObj); - JIM_REGISTER_API(FreeObj); - JIM_REGISTER_API(InvalidateStringRep); - JIM_REGISTER_API(InitStringRep); - JIM_REGISTER_API(DuplicateObj); - JIM_REGISTER_API(GetString); - JIM_REGISTER_API(Length); - JIM_REGISTER_API(InvalidateStringRep); - JIM_REGISTER_API(NewStringObj); - JIM_REGISTER_API(NewStringObjNoAlloc); - JIM_REGISTER_API(AppendString); - JIM_REGISTER_API(AppendString_sprintf); - JIM_REGISTER_API(AppendObj); - JIM_REGISTER_API(AppendStrings); - JIM_REGISTER_API(StringEqObj); - JIM_REGISTER_API(StringMatchObj); - JIM_REGISTER_API(StringRangeObj); - JIM_REGISTER_API(FormatString); - JIM_REGISTER_API(CompareStringImmediate); - JIM_REGISTER_API(NewReference); - JIM_REGISTER_API(GetReference); - JIM_REGISTER_API(SetFinalizer); - JIM_REGISTER_API(GetFinalizer); - JIM_REGISTER_API(CreateInterp); - JIM_REGISTER_API(FreeInterp); - JIM_REGISTER_API(GetExitCode); - JIM_REGISTER_API(SetStdin); - JIM_REGISTER_API(SetStdout); - JIM_REGISTER_API(SetStderr); - JIM_REGISTER_API(CreateCommand); - JIM_REGISTER_API(CreateProcedure); - JIM_REGISTER_API(DeleteCommand); - JIM_REGISTER_API(RenameCommand); - JIM_REGISTER_API(GetCommand); - JIM_REGISTER_API(SetVariable); - JIM_REGISTER_API(SetVariableStr); - JIM_REGISTER_API(SetGlobalVariableStr); - JIM_REGISTER_API(SetVariableStrWithStr); - JIM_REGISTER_API(SetVariableLink); - JIM_REGISTER_API(GetVariable); - JIM_REGISTER_API(GetCallFrameByLevel); - JIM_REGISTER_API(Collect); - JIM_REGISTER_API(CollectIfNeeded); - JIM_REGISTER_API(GetIndex); - JIM_REGISTER_API(NewListObj); - JIM_REGISTER_API(ListAppendElement); - JIM_REGISTER_API(ListAppendList); - JIM_REGISTER_API(ListLength); - JIM_REGISTER_API(ListIndex); - JIM_REGISTER_API(SetListIndex); - JIM_REGISTER_API(ConcatObj); - JIM_REGISTER_API(NewDictObj); - JIM_REGISTER_API(DictKey); - JIM_REGISTER_API(DictKeysVector); - JIM_REGISTER_API(GetIndex); - JIM_REGISTER_API(GetReturnCode); - JIM_REGISTER_API(EvalExpression); - JIM_REGISTER_API(GetBoolFromExpr); - JIM_REGISTER_API(GetWide); - JIM_REGISTER_API(GetLong); - JIM_REGISTER_API(SetWide); - JIM_REGISTER_API(NewIntObj); - JIM_REGISTER_API(GetDouble); - JIM_REGISTER_API(SetDouble); - JIM_REGISTER_API(NewDoubleObj); - JIM_REGISTER_API(WrongNumArgs); - JIM_REGISTER_API(SetDictKeysVector); - JIM_REGISTER_API(SubstObj); - JIM_REGISTER_API(RegisterApi); - JIM_REGISTER_API(PrintErrorMessage); - JIM_REGISTER_API(InteractivePrompt); - JIM_REGISTER_API(RegisterCoreCommands); - JIM_REGISTER_API(GetSharedString); - JIM_REGISTER_API(ReleaseSharedString); - JIM_REGISTER_API(Panic); - JIM_REGISTER_API(StrDup); - JIM_REGISTER_API(UnsetVariable); - JIM_REGISTER_API(GetVariableStr); - JIM_REGISTER_API(GetGlobalVariable); - JIM_REGISTER_API(GetGlobalVariableStr); - JIM_REGISTER_API(GetAssocData); - JIM_REGISTER_API(SetAssocData); - JIM_REGISTER_API(DeleteAssocData); - JIM_REGISTER_API(GetEnum); - JIM_REGISTER_API(ScriptIsComplete); - JIM_REGISTER_API(PackageRequire); - JIM_REGISTER_API(PackageProvide); - JIM_REGISTER_API(InitStack); - JIM_REGISTER_API(FreeStack); - JIM_REGISTER_API(StackLen); - JIM_REGISTER_API(StackPush); - JIM_REGISTER_API(StackPop); - JIM_REGISTER_API(StackPeek); - JIM_REGISTER_API(FreeStackElements); - JIM_REGISTER_API(fprintf); - JIM_REGISTER_API(vfprintf); - JIM_REGISTER_API(fwrite); - JIM_REGISTER_API(fread); - JIM_REGISTER_API(fflush); - JIM_REGISTER_API(fgets); - JIM_REGISTER_API(GetNvp); - JIM_REGISTER_API(Nvp_name2value); - JIM_REGISTER_API(Nvp_name2value_simple); - JIM_REGISTER_API(Nvp_name2value_obj); - JIM_REGISTER_API(Nvp_name2value_nocase); - JIM_REGISTER_API(Nvp_name2value_obj_nocase); - - JIM_REGISTER_API(Nvp_value2name); - JIM_REGISTER_API(Nvp_value2name_simple); - JIM_REGISTER_API(Nvp_value2name_obj); - - JIM_REGISTER_API(GetOpt_Setup); - JIM_REGISTER_API(GetOpt_Debug); - JIM_REGISTER_API(GetOpt_Obj); - JIM_REGISTER_API(GetOpt_String); - JIM_REGISTER_API(GetOpt_Double); - JIM_REGISTER_API(GetOpt_Wide); - JIM_REGISTER_API(GetOpt_Nvp); - JIM_REGISTER_API(GetOpt_NvpUnknown); - JIM_REGISTER_API(GetOpt_Enum); - - JIM_REGISTER_API(Debug_ArgvString); - JIM_REGISTER_API(SetResult_sprintf); - JIM_REGISTER_API(SetResult_NvpUnknown); - -} - -/* ----------------------------------------------------------------------------- - * Core commands utility functions - * ---------------------------------------------------------------------------*/ -void Jim_WrongNumArgs(Jim_Interp *interp, int argc, Jim_Obj *const *argv, - const char *msg) -{ - int i; - Jim_Obj *objPtr = Jim_NewEmptyStringObj(interp); - - Jim_AppendString(interp, objPtr, "wrong # args: should be \"", -1); - for (i = 0; i < argc; i++) { - Jim_AppendObj(interp, objPtr, argv[i]); - if (!(i + 1 == argc && msg[0] == '\0')) - Jim_AppendString(interp, objPtr, " ", 1); - } - Jim_AppendString(interp, objPtr, msg, -1); - Jim_AppendString(interp, objPtr, "\"", 1); - Jim_SetResult(interp, objPtr); -} - -static Jim_Obj *JimCommandsList(Jim_Interp *interp, Jim_Obj *patternObjPtr) -{ - Jim_HashTableIterator *htiter; - Jim_HashEntry *he; - Jim_Obj *listObjPtr = Jim_NewListObj(interp, NULL, 0); - const char *pattern; - int patternLen=0; - - pattern = patternObjPtr ? Jim_GetString(patternObjPtr, &patternLen) : NULL; - htiter = Jim_GetHashTableIterator(&interp->commands); - while ((he = Jim_NextHashEntry(htiter)) != NULL) { - if (pattern && !JimStringMatch(pattern, patternLen, he->key, - strlen((const char*)he->key), 0)) - continue; - Jim_ListAppendElement(interp, listObjPtr, - Jim_NewStringObj(interp, he->key, -1)); - } - Jim_FreeHashTableIterator(htiter); - return listObjPtr; -} - -#define JIM_VARLIST_GLOBALS 0 -#define JIM_VARLIST_LOCALS 1 -#define JIM_VARLIST_VARS 2 - -static Jim_Obj *JimVariablesList(Jim_Interp *interp, Jim_Obj *patternObjPtr, - int mode) -{ - Jim_HashTableIterator *htiter; - Jim_HashEntry *he; - Jim_Obj *listObjPtr = Jim_NewListObj(interp, NULL, 0); - const char *pattern; - int patternLen=0; - - pattern = patternObjPtr ? Jim_GetString(patternObjPtr, &patternLen) : NULL; - if (mode == JIM_VARLIST_GLOBALS) { - htiter = Jim_GetHashTableIterator(&interp->topFramePtr->vars); - } else { - /* For [info locals], if we are at top level an emtpy list - * is returned. I don't agree, but we aim at compatibility (SS) */ - if (mode == JIM_VARLIST_LOCALS && - interp->framePtr == interp->topFramePtr) - return listObjPtr; - htiter = Jim_GetHashTableIterator(&interp->framePtr->vars); - } - while ((he = Jim_NextHashEntry(htiter)) != NULL) { - Jim_Var *varPtr = (Jim_Var*) he->val; - if (mode == JIM_VARLIST_LOCALS) { - if (varPtr->linkFramePtr != NULL) - continue; - } - if (pattern && !JimStringMatch(pattern, patternLen, he->key, - strlen((const char*)he->key), 0)) - continue; - Jim_ListAppendElement(interp, listObjPtr, - Jim_NewStringObj(interp, he->key, -1)); - } - Jim_FreeHashTableIterator(htiter); - return listObjPtr; -} - -static int JimInfoLevel(Jim_Interp *interp, Jim_Obj *levelObjPtr, - Jim_Obj **objPtrPtr) -{ - Jim_CallFrame *targetCallFrame; - - if (JimGetCallFrameByInteger(interp, levelObjPtr, &targetCallFrame) - != JIM_OK) - return JIM_ERR; - /* No proc call at toplevel callframe */ - if (targetCallFrame == interp->topFramePtr) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad level \"", - Jim_GetString(levelObjPtr, NULL), "\"", NULL); - return JIM_ERR; - } - *objPtrPtr = Jim_NewListObj(interp, - targetCallFrame->argv, - targetCallFrame->argc); - return JIM_OK; -} - -/* ----------------------------------------------------------------------------- - * Core commands - * ---------------------------------------------------------------------------*/ - -/* fake [puts] -- not the real puts, just for debugging. */ -static int Jim_PutsCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - const char *str; - int len, nonewline = 0; - - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "-nonewline string"); - return JIM_ERR; - } - if (argc == 3) { - if (!Jim_CompareStringImmediate(interp, argv[1], "-nonewline")) - { - Jim_SetResultString(interp, "The second argument must " - "be -nonewline", -1); - return JIM_OK; - } else { - nonewline = 1; - argv++; - } - } - str = Jim_GetString(argv[1], &len); - Jim_fwrite(interp, str, 1, len, interp->cookie_stdout); - if (!nonewline) Jim_fprintf(interp, interp->cookie_stdout, JIM_NL); - return JIM_OK; -} - -/* Helper for [+] and [*] */ -static int Jim_AddMulHelper(Jim_Interp *interp, int argc, - Jim_Obj *const *argv, int op) -{ - jim_wide wideValue, res; - double doubleValue, doubleRes; - int i; - - res = (op == JIM_EXPROP_ADD) ? 0 : 1; - - for (i = 1; i < argc; i++) { - if (Jim_GetWide(interp, argv[i], &wideValue) != JIM_OK) - goto trydouble; - if (op == JIM_EXPROP_ADD) - res += wideValue; - else - res *= wideValue; - } - Jim_SetResult(interp, Jim_NewIntObj(interp, res)); - return JIM_OK; -trydouble: - doubleRes = (double) res; - for (;i < argc; i++) { - if (Jim_GetDouble(interp, argv[i], &doubleValue) != JIM_OK) - return JIM_ERR; - if (op == JIM_EXPROP_ADD) - doubleRes += doubleValue; - else - doubleRes *= doubleValue; - } - Jim_SetResult(interp, Jim_NewDoubleObj(interp, doubleRes)); - return JIM_OK; -} - -/* Helper for [-] and [/] */ -static int Jim_SubDivHelper(Jim_Interp *interp, int argc, - Jim_Obj *const *argv, int op) -{ - jim_wide wideValue, res = 0; - double doubleValue, doubleRes = 0; - int i = 2; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "number ?number ... number?"); - return JIM_ERR; - } else if (argc == 2) { - /* The arity = 2 case is different. For [- x] returns -x, - * while [/ x] returns 1/x. */ - if (Jim_GetWide(interp, argv[1], &wideValue) != JIM_OK) { - if (Jim_GetDouble(interp, argv[1], &doubleValue) != - JIM_OK) - { - return JIM_ERR; - } else { - if (op == JIM_EXPROP_SUB) - doubleRes = -doubleValue; - else - doubleRes = 1.0/doubleValue; - Jim_SetResult(interp, Jim_NewDoubleObj(interp, - doubleRes)); - return JIM_OK; - } - } - if (op == JIM_EXPROP_SUB) { - res = -wideValue; - Jim_SetResult(interp, Jim_NewIntObj(interp, res)); - } else { - doubleRes = 1.0/wideValue; - Jim_SetResult(interp, Jim_NewDoubleObj(interp, - doubleRes)); - } - return JIM_OK; - } else { - if (Jim_GetWide(interp, argv[1], &res) != JIM_OK) { - if (Jim_GetDouble(interp, argv[1], &doubleRes) - != JIM_OK) { - return JIM_ERR; - } else { - goto trydouble; - } - } - } - for (i = 2; i < argc; i++) { - if (Jim_GetWide(interp, argv[i], &wideValue) != JIM_OK) { - doubleRes = (double) res; - goto trydouble; - } - if (op == JIM_EXPROP_SUB) - res -= wideValue; - else - res /= wideValue; - } - Jim_SetResult(interp, Jim_NewIntObj(interp, res)); - return JIM_OK; -trydouble: - for (;i < argc; i++) { - if (Jim_GetDouble(interp, argv[i], &doubleValue) != JIM_OK) - return JIM_ERR; - if (op == JIM_EXPROP_SUB) - doubleRes -= doubleValue; - else - doubleRes /= doubleValue; - } - Jim_SetResult(interp, Jim_NewDoubleObj(interp, doubleRes)); - return JIM_OK; -} - - -/* [+] */ -static int Jim_AddCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - return Jim_AddMulHelper(interp, argc, argv, JIM_EXPROP_ADD); -} - -/* [*] */ -static int Jim_MulCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - return Jim_AddMulHelper(interp, argc, argv, JIM_EXPROP_MUL); -} - -/* [-] */ -static int Jim_SubCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - return Jim_SubDivHelper(interp, argc, argv, JIM_EXPROP_SUB); -} - -/* [/] */ -static int Jim_DivCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - return Jim_SubDivHelper(interp, argc, argv, JIM_EXPROP_DIV); -} - -/* [set] */ -static int Jim_SetCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "varName ?newValue?"); - return JIM_ERR; - } - if (argc == 2) { - Jim_Obj *objPtr; - objPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG); - if (!objPtr) - return JIM_ERR; - Jim_SetResult(interp, objPtr); - return JIM_OK; - } - /* argc == 3 case. */ - if (Jim_SetVariable(interp, argv[1], argv[2]) != JIM_OK) - return JIM_ERR; - Jim_SetResult(interp, argv[2]); - return JIM_OK; -} - -/* [unset] */ -static int Jim_UnsetCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int i; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "varName ?varName ...?"); - return JIM_ERR; - } - for (i = 1; i < argc; i++) { - if (Jim_UnsetVariable(interp, argv[i], JIM_ERRMSG) != JIM_OK) - return JIM_ERR; - } - return JIM_OK; -} - -/* [incr] */ -static int Jim_IncrCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - jim_wide wideValue, increment = 1; - Jim_Obj *intObjPtr; - - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "varName ?increment?"); - return JIM_ERR; - } - if (argc == 3) { - if (Jim_GetWide(interp, argv[2], &increment) != JIM_OK) - return JIM_ERR; - } - intObjPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG); - if (!intObjPtr) return JIM_ERR; - if (Jim_GetWide(interp, intObjPtr, &wideValue) != JIM_OK) - return JIM_ERR; - if (Jim_IsShared(intObjPtr)) { - intObjPtr = Jim_NewIntObj(interp, wideValue + increment); - if (Jim_SetVariable(interp, argv[1], intObjPtr) != JIM_OK) { - Jim_FreeNewObj(interp, intObjPtr); - return JIM_ERR; - } - } else { - Jim_SetWide(interp, intObjPtr, wideValue + increment); - /* The following step is required in order to invalidate the - * string repr of "FOO" if the var name is on the form of "FOO(IDX)" */ - if (Jim_SetVariable(interp, argv[1], intObjPtr) != JIM_OK) { - return JIM_ERR; - } - } - Jim_SetResult(interp, intObjPtr); - return JIM_OK; -} - -/* [while] */ -static int Jim_WhileCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "condition body"); - return JIM_ERR; - } - /* Try to run a specialized version of while if the expression - * is in one of the following forms: - * - * $a < CONST, $a < $b - * $a <= CONST, $a <= $b - * $a > CONST, $a > $b - * $a >= CONST, $a >= $b - * $a != CONST, $a != $b - * $a == CONST, $a == $b - * $a - * !$a - * CONST - */ - -#ifdef JIM_OPTIMIZATION - { - ExprByteCode *expr; - Jim_Obj *varAObjPtr = NULL, *varBObjPtr = NULL, *objPtr; - int exprLen, retval; - - /* STEP 1 -- Check if there are the conditions to run the specialized - * version of while */ - - if ((expr = Jim_GetExpression(interp, argv[1])) == NULL) goto noopt; - if (expr->len <= 0 || expr->len > 3) goto noopt; - switch (expr->len) { - case 1: - if (expr->opcode[0] != JIM_EXPROP_VARIABLE && - expr->opcode[0] != JIM_EXPROP_NUMBER) - goto noopt; - break; - case 2: - if (expr->opcode[1] != JIM_EXPROP_NOT || - expr->opcode[0] != JIM_EXPROP_VARIABLE) - goto noopt; - break; - case 3: - if (expr->opcode[0] != JIM_EXPROP_VARIABLE || - (expr->opcode[1] != JIM_EXPROP_NUMBER && - expr->opcode[1] != JIM_EXPROP_VARIABLE)) - goto noopt; - switch (expr->opcode[2]) { - case JIM_EXPROP_LT: - case JIM_EXPROP_LTE: - case JIM_EXPROP_GT: - case JIM_EXPROP_GTE: - case JIM_EXPROP_NUMEQ: - case JIM_EXPROP_NUMNE: - /* nothing to do */ - break; - default: - goto noopt; - } - break; - default: - Jim_Panic(interp, - "Unexpected default reached in Jim_WhileCoreCommand()"); - break; - } - - /* STEP 2 -- conditions meet. Initialization. Take different - * branches for different expression lengths. */ - exprLen = expr->len; - - if (exprLen == 1) { - jim_wide wideValue=0; - - if (expr->opcode[0] == JIM_EXPROP_VARIABLE) { - varAObjPtr = expr->obj[0]; - Jim_IncrRefCount(varAObjPtr); - } else { - if (Jim_GetWide(interp, expr->obj[0], &wideValue) != JIM_OK) - goto noopt; - } - while (1) { - if (varAObjPtr) { - if (!(objPtr = - Jim_GetVariable(interp, varAObjPtr, JIM_NONE)) || - Jim_GetWide(interp, objPtr, &wideValue) != JIM_OK) - { - Jim_DecrRefCount(interp, varAObjPtr); - goto noopt; - } - } - if (!wideValue) break; - if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) { - switch (retval) { - case JIM_BREAK: - if (varAObjPtr) - Jim_DecrRefCount(interp, varAObjPtr); - goto out; - break; - case JIM_CONTINUE: - continue; - break; - default: - if (varAObjPtr) - Jim_DecrRefCount(interp, varAObjPtr); - return retval; - } - } - } - if (varAObjPtr) - Jim_DecrRefCount(interp, varAObjPtr); - } else if (exprLen == 3) { - jim_wide wideValueA, wideValueB=0, cmpRes = 0; - int cmpType = expr->opcode[2]; - - varAObjPtr = expr->obj[0]; - Jim_IncrRefCount(varAObjPtr); - if (expr->opcode[1] == JIM_EXPROP_VARIABLE) { - varBObjPtr = expr->obj[1]; - Jim_IncrRefCount(varBObjPtr); - } else { - if (Jim_GetWide(interp, expr->obj[1], &wideValueB) != JIM_OK) - goto noopt; - } - while (1) { - if (!(objPtr = Jim_GetVariable(interp, varAObjPtr, JIM_NONE)) || - Jim_GetWide(interp, objPtr, &wideValueA) != JIM_OK) - { - Jim_DecrRefCount(interp, varAObjPtr); - if (varBObjPtr) - Jim_DecrRefCount(interp, varBObjPtr); - goto noopt; - } - if (varBObjPtr) { - if (!(objPtr = - Jim_GetVariable(interp, varBObjPtr, JIM_NONE)) || - Jim_GetWide(interp, objPtr, &wideValueB) != JIM_OK) - { - Jim_DecrRefCount(interp, varAObjPtr); - Jim_DecrRefCount(interp, varBObjPtr); - goto noopt; - } - } - switch (cmpType) { - case JIM_EXPROP_LT: - cmpRes = wideValueA < wideValueB; break; - case JIM_EXPROP_LTE: - cmpRes = wideValueA <= wideValueB; break; - case JIM_EXPROP_GT: - cmpRes = wideValueA > wideValueB; break; - case JIM_EXPROP_GTE: - cmpRes = wideValueA >= wideValueB; break; - case JIM_EXPROP_NUMEQ: - cmpRes = wideValueA == wideValueB; break; - case JIM_EXPROP_NUMNE: - cmpRes = wideValueA != wideValueB; break; - } - if (!cmpRes) break; - if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) { - switch (retval) { - case JIM_BREAK: - Jim_DecrRefCount(interp, varAObjPtr); - if (varBObjPtr) - Jim_DecrRefCount(interp, varBObjPtr); - goto out; - break; - case JIM_CONTINUE: - continue; - break; - default: - Jim_DecrRefCount(interp, varAObjPtr); - if (varBObjPtr) - Jim_DecrRefCount(interp, varBObjPtr); - return retval; - } - } - } - Jim_DecrRefCount(interp, varAObjPtr); - if (varBObjPtr) - Jim_DecrRefCount(interp, varBObjPtr); - } else { - /* TODO: case for len == 2 */ - goto noopt; - } - Jim_SetEmptyResult(interp); - return JIM_OK; - } -noopt: -#endif - - /* The general purpose implementation of while starts here */ - while (1) { - int boolean, retval; - - if ((retval = Jim_GetBoolFromExpr(interp, argv[1], - &boolean)) != JIM_OK) - return retval; - if (!boolean) break; - if ((retval = Jim_EvalObj(interp, argv[2])) != JIM_OK) { - switch (retval) { - case JIM_BREAK: - goto out; - break; - case JIM_CONTINUE: - continue; - break; - default: - return retval; - } - } - } -out: - Jim_SetEmptyResult(interp); - return JIM_OK; -} - -/* [for] */ -static int Jim_ForCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int retval; - - if (argc != 5) { - Jim_WrongNumArgs(interp, 1, argv, "start test next body"); - return JIM_ERR; - } - /* Check if the for is on the form: - * for {set i CONST} {$i < CONST} {incr i} - * for {set i CONST} {$i < $j} {incr i} - * for {set i CONST} {$i <= CONST} {incr i} - * for {set i CONST} {$i <= $j} {incr i} - * XXX: NOTE: if variable traces are implemented, this optimization - * need to be modified to check for the proc epoch at every variable - * update. */ -#ifdef JIM_OPTIMIZATION - { - ScriptObj *initScript, *incrScript; - ExprByteCode *expr; - jim_wide start, stop=0, currentVal; - unsigned jim_wide procEpoch = interp->procEpoch; - Jim_Obj *varNamePtr, *stopVarNamePtr = NULL, *objPtr; - int cmpType; - struct Jim_Cmd *cmdPtr; - - /* Do it only if there aren't shared arguments */ - if (argv[1] == argv[2] || argv[2] == argv[3] || argv[1] == argv[3]) - goto evalstart; - initScript = Jim_GetScript(interp, argv[1]); - expr = Jim_GetExpression(interp, argv[2]); - incrScript = Jim_GetScript(interp, argv[3]); - - /* Ensure proper lengths to start */ - if (initScript->len != 6) goto evalstart; - if (incrScript->len != 4) goto evalstart; - if (expr->len != 3) goto evalstart; - /* Ensure proper token types. */ - if (initScript->token[2].type != JIM_TT_ESC || - initScript->token[4].type != JIM_TT_ESC || - incrScript->token[2].type != JIM_TT_ESC || - expr->opcode[0] != JIM_EXPROP_VARIABLE || - (expr->opcode[1] != JIM_EXPROP_NUMBER && - expr->opcode[1] != JIM_EXPROP_VARIABLE) || - (expr->opcode[2] != JIM_EXPROP_LT && - expr->opcode[2] != JIM_EXPROP_LTE)) - goto evalstart; - cmpType = expr->opcode[2]; - /* Initialization command must be [set] */ - cmdPtr = Jim_GetCommand(interp, initScript->token[0].objPtr, JIM_NONE); - if (cmdPtr == NULL || cmdPtr->cmdProc != Jim_SetCoreCommand) - goto evalstart; - /* Update command must be incr */ - cmdPtr = Jim_GetCommand(interp, incrScript->token[0].objPtr, JIM_NONE); - if (cmdPtr == NULL || cmdPtr->cmdProc != Jim_IncrCoreCommand) - goto evalstart; - /* set, incr, expression must be about the same variable */ - if (!Jim_StringEqObj(initScript->token[2].objPtr, - incrScript->token[2].objPtr, 0)) - goto evalstart; - if (!Jim_StringEqObj(initScript->token[2].objPtr, - expr->obj[0], 0)) - goto evalstart; - /* Check that the initialization and comparison are valid integers */ - if (Jim_GetWide(interp, initScript->token[4].objPtr, &start) == JIM_ERR) - goto evalstart; - if (expr->opcode[1] == JIM_EXPROP_NUMBER && - Jim_GetWide(interp, expr->obj[1], &stop) == JIM_ERR) - { - goto evalstart; - } - - /* Initialization */ - varNamePtr = expr->obj[0]; - if (expr->opcode[1] == JIM_EXPROP_VARIABLE) { - stopVarNamePtr = expr->obj[1]; - Jim_IncrRefCount(stopVarNamePtr); - } - Jim_IncrRefCount(varNamePtr); - - /* --- OPTIMIZED FOR --- */ - /* Start to loop */ - objPtr = Jim_NewIntObj(interp, start); - if (Jim_SetVariable(interp, varNamePtr, objPtr) != JIM_OK) { - Jim_DecrRefCount(interp, varNamePtr); - if (stopVarNamePtr) Jim_DecrRefCount(interp, stopVarNamePtr); - Jim_FreeNewObj(interp, objPtr); - goto evalstart; - } - while (1) { - /* === Check condition === */ - /* Common code: */ - objPtr = Jim_GetVariable(interp, varNamePtr, JIM_NONE); - if (objPtr == NULL || - Jim_GetWide(interp, objPtr, ¤tVal) != JIM_OK) - { - Jim_DecrRefCount(interp, varNamePtr); - if (stopVarNamePtr) Jim_DecrRefCount(interp, stopVarNamePtr); - goto testcond; - } - /* Immediate or Variable? get the 'stop' value if the latter. */ - if (stopVarNamePtr) { - objPtr = Jim_GetVariable(interp, stopVarNamePtr, JIM_NONE); - if (objPtr == NULL || - Jim_GetWide(interp, objPtr, &stop) != JIM_OK) - { - Jim_DecrRefCount(interp, varNamePtr); - Jim_DecrRefCount(interp, stopVarNamePtr); - goto testcond; - } - } - if (cmpType == JIM_EXPROP_LT) { - if (currentVal >= stop) break; - } else { - if (currentVal > stop) break; - } - /* Eval body */ - if ((retval = Jim_EvalObj(interp, argv[4])) != JIM_OK) { - switch (retval) { - case JIM_BREAK: - if (stopVarNamePtr) - Jim_DecrRefCount(interp, stopVarNamePtr); - Jim_DecrRefCount(interp, varNamePtr); - goto out; - case JIM_CONTINUE: - /* nothing to do */ - break; - default: - if (stopVarNamePtr) - Jim_DecrRefCount(interp, stopVarNamePtr); - Jim_DecrRefCount(interp, varNamePtr); - return retval; - } - } - /* If there was a change in procedures/command continue - * with the usual [for] command implementation */ - if (procEpoch != interp->procEpoch) { - if (stopVarNamePtr) - Jim_DecrRefCount(interp, stopVarNamePtr); - Jim_DecrRefCount(interp, varNamePtr); - goto evalnext; - } - /* Increment */ - objPtr = Jim_GetVariable(interp, varNamePtr, JIM_ERRMSG); - if (objPtr->refCount == 1 && objPtr->typePtr == &intObjType) { - objPtr->internalRep.wideValue ++; - Jim_InvalidateStringRep(objPtr); - } else { - Jim_Obj *auxObjPtr; - - if (Jim_GetWide(interp, objPtr, ¤tVal) == JIM_ERR) { - if (stopVarNamePtr) - Jim_DecrRefCount(interp, stopVarNamePtr); - Jim_DecrRefCount(interp, varNamePtr); - goto evalnext; - } - auxObjPtr = Jim_NewIntObj(interp, currentVal + 1); - if (Jim_SetVariable(interp, varNamePtr, auxObjPtr) == JIM_ERR) { - if (stopVarNamePtr) - Jim_DecrRefCount(interp, stopVarNamePtr); - Jim_DecrRefCount(interp, varNamePtr); - Jim_FreeNewObj(interp, auxObjPtr); - goto evalnext; - } - } - } - if (stopVarNamePtr) - Jim_DecrRefCount(interp, stopVarNamePtr); - Jim_DecrRefCount(interp, varNamePtr); - Jim_SetEmptyResult(interp); - return JIM_OK; - } -#endif -evalstart: - /* Eval start */ - if ((retval = Jim_EvalObj(interp, argv[1])) != JIM_OK) - return retval; - while (1) { - int boolean; -testcond: - /* Test the condition */ - if ((retval = Jim_GetBoolFromExpr(interp, argv[2], &boolean)) - != JIM_OK) - return retval; - if (!boolean) break; - /* Eval body */ - if ((retval = Jim_EvalObj(interp, argv[4])) != JIM_OK) { - switch (retval) { - case JIM_BREAK: - goto out; - break; - case JIM_CONTINUE: - /* Nothing to do */ - break; - default: - return retval; - } - } -evalnext: - /* Eval next */ - if ((retval = Jim_EvalObj(interp, argv[3])) != JIM_OK) { - switch (retval) { - case JIM_BREAK: - goto out; - break; - case JIM_CONTINUE: - continue; - break; - default: - return retval; - } - } - } -out: - Jim_SetEmptyResult(interp); - return JIM_OK; -} - -/* foreach + lmap implementation. */ -static int JimForeachMapHelper(Jim_Interp *interp, int argc, - Jim_Obj *const *argv, int doMap) -{ - int result = JIM_ERR, i, nbrOfLists, *listsIdx, *listsEnd; - int nbrOfLoops = 0; - Jim_Obj *emptyStr, *script, *mapRes = NULL; - - if (argc < 4 || argc % 2 != 0) { - Jim_WrongNumArgs(interp, 1, argv, "varList list ?varList list ...? script"); - return JIM_ERR; - } - if (doMap) { - mapRes = Jim_NewListObj(interp, NULL, 0); - Jim_IncrRefCount(mapRes); - } - emptyStr = Jim_NewEmptyStringObj(interp); - Jim_IncrRefCount(emptyStr); - script = argv[argc-1]; /* Last argument is a script */ - nbrOfLists = (argc - 1 - 1) / 2; /* argc - 'foreach' - script */ - listsIdx = (int*)Jim_Alloc(nbrOfLists * sizeof(int)); - listsEnd = (int*)Jim_Alloc(nbrOfLists*2 * sizeof(int)); - /* Initialize iterators and remember max nbr elements each list */ - memset(listsIdx, 0, nbrOfLists * sizeof(int)); - /* Remember lengths of all lists and calculate how much rounds to loop */ - for (i = 0; i < nbrOfLists*2; i += 2) { - div_t cnt; - int count; - Jim_ListLength(interp, argv[i + 1], &listsEnd[i]); - Jim_ListLength(interp, argv[i + 2], &listsEnd[i + 1]); - if (listsEnd[i] == 0) { - Jim_SetResultString(interp, "foreach varlist is empty", -1); - goto err; - } - cnt = div(listsEnd[i + 1], listsEnd[i]); - count = cnt.quot + (cnt.rem ? 1 : 0); - if (count > nbrOfLoops) - nbrOfLoops = count; - } - for (; nbrOfLoops-- > 0;) { - for (i = 0; i < nbrOfLists; ++i) { - int varIdx = 0, var = i * 2; - while (varIdx < listsEnd[var]) { - Jim_Obj *varName, *ele; - int lst = i * 2 + 1; - if (Jim_ListIndex(interp, argv[var + 1], varIdx, &varName, JIM_ERRMSG) - != JIM_OK) - goto err; - if (listsIdx[i] < listsEnd[lst]) { - if (Jim_ListIndex(interp, argv[lst + 1], listsIdx[i], &ele, JIM_ERRMSG) - != JIM_OK) - goto err; - if (Jim_SetVariable(interp, varName, ele) != JIM_OK) { - Jim_SetResultString(interp, "couldn't set loop variable: ", -1); - goto err; - } - ++listsIdx[i]; /* Remember next iterator of current list */ - } else if (Jim_SetVariable(interp, varName, emptyStr) != JIM_OK) { - Jim_SetResultString(interp, "couldn't set loop variable: ", -1); - goto err; - } - ++varIdx; /* Next variable */ - } - } - switch (result = Jim_EvalObj(interp, script)) { - case JIM_OK: - if (doMap) - Jim_ListAppendElement(interp, mapRes, interp->result); - break; - case JIM_CONTINUE: - break; - case JIM_BREAK: - goto out; - break; - default: - goto err; - } - } -out: - result = JIM_OK; - if (doMap) - Jim_SetResult(interp, mapRes); - else - Jim_SetEmptyResult(interp); -err: - if (doMap) - Jim_DecrRefCount(interp, mapRes); - Jim_DecrRefCount(interp, emptyStr); - Jim_Free(listsIdx); - Jim_Free(listsEnd); - return result; -} - -/* [foreach] */ -static int Jim_ForeachCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - return JimForeachMapHelper(interp, argc, argv, 0); -} - -/* [lmap] */ -static int Jim_LmapCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - return JimForeachMapHelper(interp, argc, argv, 1); -} - -/* [if] */ -static int Jim_IfCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int boolean, retval, current = 1, falsebody = 0; - if (argc >= 3) { - while (1) { - /* Far not enough arguments given! */ - if (current >= argc) goto err; - if ((retval = Jim_GetBoolFromExpr(interp, - argv[current++], &boolean)) - != JIM_OK) - return retval; - /* There lacks something, isn't it? */ - if (current >= argc) goto err; - if (Jim_CompareStringImmediate(interp, argv[current], - "then")) current++; - /* Tsk tsk, no then-clause? */ - if (current >= argc) goto err; - if (boolean) - return Jim_EvalObj(interp, argv[current]); - /* Ok: no else-clause follows */ - if (++current >= argc) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - return JIM_OK; - } - falsebody = current++; - if (Jim_CompareStringImmediate(interp, argv[falsebody], - "else")) { - /* IIICKS - else-clause isn't last cmd? */ - if (current != argc-1) goto err; - return Jim_EvalObj(interp, argv[current]); - } else if (Jim_CompareStringImmediate(interp, - argv[falsebody], "elseif")) - /* Ok: elseif follows meaning all the stuff - * again (how boring...) */ - continue; - /* OOPS - else-clause is not last cmd?*/ - else if (falsebody != argc-1) - goto err; - return Jim_EvalObj(interp, argv[falsebody]); - } - return JIM_OK; - } -err: - Jim_WrongNumArgs(interp, 1, argv, "condition ?then? trueBody ?elseif ...? ?else? falseBody"); - return JIM_ERR; -} - -enum {SWITCH_EXACT, SWITCH_GLOB, SWITCH_RE, SWITCH_CMD, SWITCH_UNKNOWN}; - -/* [switch] */ -static int Jim_SwitchCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int retcode = JIM_ERR, matchOpt = SWITCH_EXACT, opt = 1, patCount, i; - Jim_Obj *command = 0, *const *caseList = 0, *strObj; - Jim_Obj *script = 0; - if (argc < 3) goto wrongnumargs; - for (opt = 1; opt < argc; ++opt) { - const char *option = Jim_GetString(argv[opt], 0); - if (*option != '-') break; - else if (strncmp(option, "--", 2) == 0) { ++opt; break; } - else if (strncmp(option, "-exact", 2) == 0) matchOpt = SWITCH_EXACT; - else if (strncmp(option, "-glob", 2) == 0) matchOpt = SWITCH_GLOB; - else if (strncmp(option, "-regexp", 2) == 0) matchOpt = SWITCH_RE; - else if (strncmp(option, "-command", 2) == 0) { matchOpt = SWITCH_CMD; - if ((argc - opt) < 2) goto wrongnumargs; - command = argv[++opt]; - } else { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad option \"", option, "\": must be -exact, -glob, " - "-regexp, -command procname or --", 0); - goto err; - } - if ((argc - opt) < 2) goto wrongnumargs; - } - strObj = argv[opt++]; - patCount = argc - opt; - if (patCount == 1) { - Jim_Obj **vector; - JimListGetElements(interp, argv[opt], &patCount, &vector); - caseList = vector; - } else - caseList = &argv[opt]; - if (patCount == 0 || patCount % 2 != 0) goto wrongnumargs; - for (i = 0; script == 0 && i < patCount; i += 2) { - Jim_Obj *patObj = caseList[i]; - if (!Jim_CompareStringImmediate(interp, patObj, "default") - || i < (patCount-2)) { - switch (matchOpt) { - case SWITCH_EXACT: - if (Jim_StringEqObj(strObj, patObj, 0)) - script = caseList[i + 1]; - break; - case SWITCH_GLOB: - if (Jim_StringMatchObj(patObj, strObj, 0)) - script = caseList[i + 1]; - break; - case SWITCH_RE: - command = Jim_NewStringObj(interp, "regexp", -1); - /* Fall thru intentionally */ - case SWITCH_CMD: { - Jim_Obj *parms[] = {command, patObj, strObj}; - int rc = Jim_EvalObjVector(interp, 3, parms); - long matching; - /* After the execution of a command we need to - * make sure to reconvert the object into a list - * again. Only for the single-list style [switch]. */ - if (argc-opt == 1) { - Jim_Obj **vector; - JimListGetElements(interp, argv[opt], &patCount, - &vector); - caseList = vector; - } - /* command is here already decref'd */ - if (rc != JIM_OK) { - retcode = rc; - goto err; - } - rc = Jim_GetLong(interp, Jim_GetResult(interp), &matching); - if (rc != JIM_OK) { - retcode = rc; - goto err; - } - if (matching) - script = caseList[i + 1]; - break; - } - default: - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "internal error: no such option implemented", 0); - goto err; - } - } else { - script = caseList[i + 1]; - } - } - for (; i < patCount && Jim_CompareStringImmediate(interp, script, "-"); - i += 2) - script = caseList[i + 1]; - if (script && Jim_CompareStringImmediate(interp, script, "-")) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "no body specified for pattern \"", - Jim_GetString(caseList[i-2], 0), "\"", 0); - goto err; - } - retcode = JIM_OK; - Jim_SetEmptyResult(interp); - if (script != 0) - retcode = Jim_EvalObj(interp, script); - return retcode; -wrongnumargs: - Jim_WrongNumArgs(interp, 1, argv, "?options? string " - "pattern body ... ?default body? or " - "{pattern body ?pattern body ...?}"); -err: - return retcode; -} - -/* [list] */ -static int Jim_ListCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *listObjPtr; - - listObjPtr = Jim_NewListObj(interp, argv + 1, argc-1); - Jim_SetResult(interp, listObjPtr); - return JIM_OK; -} - -/* [lindex] */ -static int Jim_LindexCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *objPtr, *listObjPtr; - int i; - int index_t; - - if (argc < 3) { - Jim_WrongNumArgs(interp, 1, argv, "list index ?...?"); - return JIM_ERR; - } - objPtr = argv[1]; - Jim_IncrRefCount(objPtr); - for (i = 2; i < argc; i++) { - listObjPtr = objPtr; - if (Jim_GetIndex(interp, argv[i], &index_t) != JIM_OK) { - Jim_DecrRefCount(interp, listObjPtr); - return JIM_ERR; - } - if (Jim_ListIndex(interp, listObjPtr, index_t, &objPtr, - JIM_NONE) != JIM_OK) { - /* Returns an empty object if the index - * is out of range. */ - Jim_DecrRefCount(interp, listObjPtr); - Jim_SetEmptyResult(interp); - return JIM_OK; - } - Jim_IncrRefCount(objPtr); - Jim_DecrRefCount(interp, listObjPtr); - } - Jim_SetResult(interp, objPtr); - Jim_DecrRefCount(interp, objPtr); - return JIM_OK; -} - -/* [llength] */ -static int Jim_LlengthCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int len; - - if (argc != 2) { - Jim_WrongNumArgs(interp, 1, argv, "list"); - return JIM_ERR; - } - Jim_ListLength(interp, argv[1], &len); - Jim_SetResult(interp, Jim_NewIntObj(interp, len)); - return JIM_OK; -} - -/* [lappend] */ -static int Jim_LappendCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *listObjPtr; - int shared, i; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "varName ?value value ...?"); - return JIM_ERR; - } - listObjPtr = Jim_GetVariable(interp, argv[1], JIM_NONE); - if (!listObjPtr) { - /* Create the list if it does not exists */ - listObjPtr = Jim_NewListObj(interp, NULL, 0); - if (Jim_SetVariable(interp, argv[1], listObjPtr) != JIM_OK) { - Jim_FreeNewObj(interp, listObjPtr); - return JIM_ERR; - } - } - shared = Jim_IsShared(listObjPtr); - if (shared) - listObjPtr = Jim_DuplicateObj(interp, listObjPtr); - for (i = 2; i < argc; i++) - Jim_ListAppendElement(interp, listObjPtr, argv[i]); - if (Jim_SetVariable(interp, argv[1], listObjPtr) != JIM_OK) { - if (shared) - Jim_FreeNewObj(interp, listObjPtr); - return JIM_ERR; - } - Jim_SetResult(interp, listObjPtr); - return JIM_OK; -} - -/* [linsert] */ -static int Jim_LinsertCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int index_t, len; - Jim_Obj *listPtr; - - if (argc < 4) { - Jim_WrongNumArgs(interp, 1, argv, "list index element " - "?element ...?"); - return JIM_ERR; - } - listPtr = argv[1]; - if (Jim_IsShared(listPtr)) - listPtr = Jim_DuplicateObj(interp, listPtr); - if (Jim_GetIndex(interp, argv[2], &index_t) != JIM_OK) - goto err; - Jim_ListLength(interp, listPtr, &len); - if (index_t >= len) - index_t = len; - else if (index_t < 0) - index_t = len + index_t + 1; - Jim_ListInsertElements(interp, listPtr, index_t, argc-3, &argv[3]); - Jim_SetResult(interp, listPtr); - return JIM_OK; -err: - if (listPtr != argv[1]) { - Jim_FreeNewObj(interp, listPtr); - } - return JIM_ERR; -} - -/* [lset] */ -static int Jim_LsetCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc < 3) { - Jim_WrongNumArgs(interp, 1, argv, "listVar ?index...? newVal"); - return JIM_ERR; - } else if (argc == 3) { - if (Jim_SetVariable(interp, argv[1], argv[2]) != JIM_OK) - return JIM_ERR; - Jim_SetResult(interp, argv[2]); - return JIM_OK; - } - if (Jim_SetListIndex(interp, argv[1], argv + 2, argc-3, argv[argc-1]) - == JIM_ERR) return JIM_ERR; - return JIM_OK; -} - -/* [lsort] */ -static int Jim_LsortCoreCommand(Jim_Interp *interp, int argc, Jim_Obj *const argv[]) -{ - const char *options[] = { - "-ascii", "-nocase", "-increasing", "-decreasing", NULL - }; - enum {OPT_ASCII, OPT_NOCASE, OPT_INCREASING, OPT_DECREASING}; - Jim_Obj *resObj; - int i, lsortType = JIM_LSORT_ASCII; /* default sort type */ - int decreasing = 0; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "?options? list"); - return JIM_ERR; - } - for (i = 1; i < (argc-1); i++) { - int option; - - if (Jim_GetEnum(interp, argv[i], options, &option, "option", JIM_ERRMSG) - != JIM_OK) - return JIM_ERR; - switch (option) { - case OPT_ASCII: lsortType = JIM_LSORT_ASCII; break; - case OPT_NOCASE: lsortType = JIM_LSORT_NOCASE; break; - case OPT_INCREASING: decreasing = 0; break; - case OPT_DECREASING: decreasing = 1; break; - } - } - if (decreasing) { - switch (lsortType) { - case JIM_LSORT_ASCII: lsortType = JIM_LSORT_ASCII_DECR; break; - case JIM_LSORT_NOCASE: lsortType = JIM_LSORT_NOCASE_DECR; break; - } - } - resObj = Jim_DuplicateObj(interp, argv[argc-1]); - ListSortElements(interp, resObj, lsortType); - Jim_SetResult(interp, resObj); - return JIM_OK; -} - -/* [append] */ -static int Jim_AppendCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *stringObjPtr; - int shared, i; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "varName ?value value ...?"); - return JIM_ERR; - } - if (argc == 2) { - stringObjPtr = Jim_GetVariable(interp, argv[1], JIM_ERRMSG); - if (!stringObjPtr) return JIM_ERR; - } else { - stringObjPtr = Jim_GetVariable(interp, argv[1], JIM_NONE); - if (!stringObjPtr) { - /* Create the string if it does not exists */ - stringObjPtr = Jim_NewEmptyStringObj(interp); - if (Jim_SetVariable(interp, argv[1], stringObjPtr) - != JIM_OK) { - Jim_FreeNewObj(interp, stringObjPtr); - return JIM_ERR; - } - } - } - shared = Jim_IsShared(stringObjPtr); - if (shared) - stringObjPtr = Jim_DuplicateObj(interp, stringObjPtr); - for (i = 2; i < argc; i++) - Jim_AppendObj(interp, stringObjPtr, argv[i]); - if (Jim_SetVariable(interp, argv[1], stringObjPtr) != JIM_OK) { - if (shared) - Jim_FreeNewObj(interp, stringObjPtr); - return JIM_ERR; - } - Jim_SetResult(interp, stringObjPtr); - return JIM_OK; -} - -/* [debug] */ -static int Jim_DebugCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - const char *options[] = { - "refcount", "objcount", "objects", "invstr", "scriptlen", "exprlen", - "exprbc", - NULL - }; - enum { - OPT_REFCOUNT, OPT_OBJCOUNT, OPT_OBJECTS, OPT_INVSTR, OPT_SCRIPTLEN, - OPT_EXPRLEN, OPT_EXPRBC - }; - int option; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "option ?...?"); - return JIM_ERR; - } - if (Jim_GetEnum(interp, argv[1], options, &option, "option", - JIM_ERRMSG) != JIM_OK) - return JIM_ERR; - if (option == OPT_REFCOUNT) { - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "object"); - return JIM_ERR; - } - Jim_SetResult(interp, Jim_NewIntObj(interp, argv[2]->refCount)); - return JIM_OK; - } else if (option == OPT_OBJCOUNT) { - int freeobj = 0, liveobj = 0; - char buf[256]; - Jim_Obj *objPtr; - - if (argc != 2) { - Jim_WrongNumArgs(interp, 2, argv, ""); - return JIM_ERR; - } - /* Count the number of free objects. */ - objPtr = interp->freeList; - while (objPtr) { - freeobj++; - objPtr = objPtr->nextObjPtr; - } - /* Count the number of live objects. */ - objPtr = interp->liveList; - while (objPtr) { - liveobj++; - objPtr = objPtr->nextObjPtr; - } - /* Set the result string and return. */ - sprintf(buf, "free %d used %d", freeobj, liveobj); - Jim_SetResultString(interp, buf, -1); - return JIM_OK; - } else if (option == OPT_OBJECTS) { - Jim_Obj *objPtr, *listObjPtr, *subListObjPtr; - /* Count the number of live objects. */ - objPtr = interp->liveList; - listObjPtr = Jim_NewListObj(interp, NULL, 0); - while (objPtr) { - char buf[128]; - const char *type = objPtr->typePtr ? - objPtr->typePtr->name : ""; - subListObjPtr = Jim_NewListObj(interp, NULL, 0); - sprintf(buf, "%p", objPtr); - Jim_ListAppendElement(interp, subListObjPtr, - Jim_NewStringObj(interp, buf, -1)); - Jim_ListAppendElement(interp, subListObjPtr, - Jim_NewStringObj(interp, type, -1)); - Jim_ListAppendElement(interp, subListObjPtr, - Jim_NewIntObj(interp, objPtr->refCount)); - Jim_ListAppendElement(interp, subListObjPtr, objPtr); - Jim_ListAppendElement(interp, listObjPtr, subListObjPtr); - objPtr = objPtr->nextObjPtr; - } - Jim_SetResult(interp, listObjPtr); - return JIM_OK; - } else if (option == OPT_INVSTR) { - Jim_Obj *objPtr; - - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "object"); - return JIM_ERR; - } - objPtr = argv[2]; - if (objPtr->typePtr != NULL) - Jim_InvalidateStringRep(objPtr); - Jim_SetEmptyResult(interp); - return JIM_OK; - } else if (option == OPT_SCRIPTLEN) { - ScriptObj *script; - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "script"); - return JIM_ERR; - } - script = Jim_GetScript(interp, argv[2]); - Jim_SetResult(interp, Jim_NewIntObj(interp, script->len)); - return JIM_OK; - } else if (option == OPT_EXPRLEN) { - ExprByteCode *expr; - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "expression"); - return JIM_ERR; - } - expr = Jim_GetExpression(interp, argv[2]); - if (expr == NULL) - return JIM_ERR; - Jim_SetResult(interp, Jim_NewIntObj(interp, expr->len)); - return JIM_OK; - } else if (option == OPT_EXPRBC) { - Jim_Obj *objPtr; - ExprByteCode *expr; - int i; - - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "expression"); - return JIM_ERR; - } - expr = Jim_GetExpression(interp, argv[2]); - if (expr == NULL) - return JIM_ERR; - objPtr = Jim_NewListObj(interp, NULL, 0); - for (i = 0; i < expr->len; i++) { - const char *type; - Jim_ExprOperator *op; - - switch (expr->opcode[i]) { - case JIM_EXPROP_NUMBER: type = "number"; break; - case JIM_EXPROP_COMMAND: type = "command"; break; - case JIM_EXPROP_VARIABLE: type = "variable"; break; - case JIM_EXPROP_DICTSUGAR: type = "dictsugar"; break; - case JIM_EXPROP_SUBST: type = "subst"; break; - case JIM_EXPROP_STRING: type = "string"; break; - default: - op = JimExprOperatorInfo(Jim_GetString(expr->obj[i], NULL)); - if (op == NULL) { - type = "private"; - } else { - type = "operator"; - } - break; - } - Jim_ListAppendElement(interp, objPtr, - Jim_NewStringObj(interp, type, -1)); - Jim_ListAppendElement(interp, objPtr, expr->obj[i]); - } - Jim_SetResult(interp, objPtr); - return JIM_OK; - } else { - Jim_SetResultString(interp, - "bad option. Valid options are refcount, " - "objcount, objects, invstr", -1); - return JIM_ERR; - } - return JIM_OK; /* unreached */ -} - -/* [eval] */ -static int Jim_EvalCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc == 2) { - return Jim_EvalObj(interp, argv[1]); - } else if (argc > 2) { - Jim_Obj *objPtr; - int retcode; - - objPtr = Jim_ConcatObj(interp, argc-1, argv + 1); - Jim_IncrRefCount(objPtr); - retcode = Jim_EvalObj(interp, objPtr); - Jim_DecrRefCount(interp, objPtr); - return retcode; - } else { - Jim_WrongNumArgs(interp, 1, argv, "script ?...?"); - return JIM_ERR; - } -} - -/* [uplevel] */ -static int Jim_UplevelCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc >= 2) { - int retcode, newLevel, oldLevel; - Jim_CallFrame *savedCallFrame, *targetCallFrame; - Jim_Obj *objPtr; - const char *str; - - /* Save the old callframe pointer */ - savedCallFrame = interp->framePtr; - - /* Lookup the target frame pointer */ - str = Jim_GetString(argv[1], NULL); - if ((str[0] >= '0' && str[0] <= '9') || str[0] == '#') - { - if (Jim_GetCallFrameByLevel(interp, argv[1], - &targetCallFrame, - &newLevel) != JIM_OK) - return JIM_ERR; - argc--; - argv++; - } else { - if (Jim_GetCallFrameByLevel(interp, NULL, - &targetCallFrame, - &newLevel) != JIM_OK) - return JIM_ERR; - } - if (argc < 2) { - argc++; - argv--; - Jim_WrongNumArgs(interp, 1, argv, - "?level? command ?arg ...?"); - return JIM_ERR; - } - /* Eval the code in the target callframe. */ - interp->framePtr = targetCallFrame; - oldLevel = interp->numLevels; - interp->numLevels = newLevel; - if (argc == 2) { - retcode = Jim_EvalObj(interp, argv[1]); - } else { - objPtr = Jim_ConcatObj(interp, argc-1, argv + 1); - Jim_IncrRefCount(objPtr); - retcode = Jim_EvalObj(interp, objPtr); - Jim_DecrRefCount(interp, objPtr); - } - interp->numLevels = oldLevel; - interp->framePtr = savedCallFrame; - return retcode; - } else { - Jim_WrongNumArgs(interp, 1, argv, "?level? command ?arg ...?"); - return JIM_ERR; - } -} - -/* [expr] */ -static int Jim_ExprCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *exprResultPtr; - int retcode; - - if (argc == 2) { - retcode = Jim_EvalExpression(interp, argv[1], &exprResultPtr); - } else if (argc > 2) { - Jim_Obj *objPtr; - - objPtr = Jim_ConcatObj(interp, argc-1, argv + 1); - Jim_IncrRefCount(objPtr); - retcode = Jim_EvalExpression(interp, objPtr, &exprResultPtr); - Jim_DecrRefCount(interp, objPtr); - } else { - Jim_WrongNumArgs(interp, 1, argv, "expression ?...?"); - return JIM_ERR; - } - if (retcode != JIM_OK) return retcode; - Jim_SetResult(interp, exprResultPtr); - Jim_DecrRefCount(interp, exprResultPtr); - return JIM_OK; -} - -/* [break] */ -static int Jim_BreakCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc != 1) { - Jim_WrongNumArgs(interp, 1, argv, ""); - return JIM_ERR; - } - return JIM_BREAK; -} - -/* [continue] */ -static int Jim_ContinueCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc != 1) { - Jim_WrongNumArgs(interp, 1, argv, ""); - return JIM_ERR; - } - return JIM_CONTINUE; -} - -/* [return] */ -static int Jim_ReturnCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc == 1) { - return JIM_RETURN; - } else if (argc == 2) { - Jim_SetResult(interp, argv[1]); - interp->returnCode = JIM_OK; - return JIM_RETURN; - } else if (argc == 3 || argc == 4) { - int returnCode; - if (Jim_GetReturnCode(interp, argv[2], &returnCode) == JIM_ERR) - return JIM_ERR; - interp->returnCode = returnCode; - if (argc == 4) - Jim_SetResult(interp, argv[3]); - return JIM_RETURN; - } else { - Jim_WrongNumArgs(interp, 1, argv, "?-code code? ?result?"); - return JIM_ERR; - } - return JIM_RETURN; /* unreached */ -} - -/* [tailcall] */ -static int Jim_TailcallCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *objPtr; - - objPtr = Jim_NewListObj(interp, argv + 1, argc-1); - Jim_SetResult(interp, objPtr); - return JIM_EVAL; -} - -/* [proc] */ -static int Jim_ProcCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int argListLen; - int arityMin, arityMax; - - if (argc != 4 && argc != 5) { - Jim_WrongNumArgs(interp, 1, argv, "name arglist ?statics? body"); - return JIM_ERR; - } - Jim_ListLength(interp, argv[2], &argListLen); - arityMin = arityMax = argListLen + 1; - - if (argListLen) { - const char *str; - int len; - Jim_Obj *argPtr=NULL; - - /* Check for 'args' and adjust arityMin and arityMax if necessary */ - Jim_ListIndex(interp, argv[2], argListLen-1, &argPtr, JIM_NONE); - str = Jim_GetString(argPtr, &len); - if (len == 4 && memcmp(str, "args", 4) == 0) { - arityMin--; - arityMax = -1; - } - - /* Check for default arguments and reduce arityMin if necessary */ - while (arityMin > 1) { - Jim_ListIndex(interp, argv[2], arityMin - 2, &argPtr, JIM_NONE); - Jim_ListLength(interp, argPtr, &len); - if (len != 2) { - /* No default argument */ - break; - } - arityMin--; - } - } - if (argc == 4) { - return Jim_CreateProcedure(interp, Jim_GetString(argv[1], NULL), - argv[2], NULL, argv[3], arityMin, arityMax); - } else { - return Jim_CreateProcedure(interp, Jim_GetString(argv[1], NULL), - argv[2], argv[3], argv[4], arityMin, arityMax); - } -} - -/* [concat] */ -static int Jim_ConcatCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_SetResult(interp, Jim_ConcatObj(interp, argc-1, argv + 1)); - return JIM_OK; -} - -/* [upvar] */ -static int Jim_UpvarCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - const char *str; - int i; - Jim_CallFrame *targetCallFrame; - - /* Lookup the target frame pointer */ - str = Jim_GetString(argv[1], NULL); - if (argc > 3 && - ((str[0] >= '0' && str[0] <= '9') || str[0] == '#')) - { - if (Jim_GetCallFrameByLevel(interp, argv[1], - &targetCallFrame, NULL) != JIM_OK) - return JIM_ERR; - argc--; - argv++; - } else { - if (Jim_GetCallFrameByLevel(interp, NULL, - &targetCallFrame, NULL) != JIM_OK) - return JIM_ERR; - } - /* Check for arity */ - if (argc < 3 || ((argc-1)%2) != 0) { - Jim_WrongNumArgs(interp, 1, argv, "?level? otherVar localVar ?otherVar localVar ...?"); - return JIM_ERR; - } - /* Now... for every other/local couple: */ - for (i = 1; i < argc; i += 2) { - if (Jim_SetVariableLink(interp, argv[i + 1], argv[i], - targetCallFrame) != JIM_OK) return JIM_ERR; - } - return JIM_OK; -} - -/* [global] */ -static int Jim_GlobalCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int i; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "varName ?varName ...?"); - return JIM_ERR; - } - /* Link every var to the toplevel having the same name */ - if (interp->numLevels == 0) return JIM_OK; /* global at toplevel... */ - for (i = 1; i < argc; i++) { - if (Jim_SetVariableLink(interp, argv[i], argv[i], - interp->topFramePtr) != JIM_OK) return JIM_ERR; - } - return JIM_OK; -} - -/* does the [string map] operation. On error NULL is returned, - * otherwise a new string object with the result, having refcount = 0, - * is returned. */ -static Jim_Obj *JimStringMap(Jim_Interp *interp, Jim_Obj *mapListObjPtr, - Jim_Obj *objPtr, int nocase) -{ - int numMaps; - const char **key, *str, *noMatchStart = NULL; - Jim_Obj **value; - int *keyLen, strLen, i; - Jim_Obj *resultObjPtr; - - Jim_ListLength(interp, mapListObjPtr, &numMaps); - if (numMaps % 2) { - Jim_SetResultString(interp, - "list must contain an even number of elements", -1); - return NULL; - } - /* Initialization */ - numMaps /= 2; - key = Jim_Alloc(sizeof(char*)*numMaps); - keyLen = Jim_Alloc(sizeof(int)*numMaps); - value = Jim_Alloc(sizeof(Jim_Obj*)*numMaps); - resultObjPtr = Jim_NewStringObj(interp, "", 0); - for (i = 0; i < numMaps; i++) { - Jim_Obj *eleObjPtr=NULL; - - Jim_ListIndex(interp, mapListObjPtr, i*2, &eleObjPtr, JIM_NONE); - key[i] = Jim_GetString(eleObjPtr, &keyLen[i]); - Jim_ListIndex(interp, mapListObjPtr, i*2 + 1, &eleObjPtr, JIM_NONE); - value[i] = eleObjPtr; - } - str = Jim_GetString(objPtr, &strLen); - /* Map it */ - while (strLen) { - for (i = 0; i < numMaps; i++) { - if (strLen >= keyLen[i] && keyLen[i]) { - if (!JimStringCompare(str, keyLen[i], key[i], keyLen[i], - nocase)) - { - if (noMatchStart) { - Jim_AppendString(interp, resultObjPtr, - noMatchStart, str-noMatchStart); - noMatchStart = NULL; - } - Jim_AppendObj(interp, resultObjPtr, value[i]); - str += keyLen[i]; - strLen -= keyLen[i]; - break; - } - } - } - if (i == numMaps) { /* no match */ - if (noMatchStart == NULL) - noMatchStart = str; - str ++; - strLen --; - } - } - if (noMatchStart) { - Jim_AppendString(interp, resultObjPtr, - noMatchStart, str-noMatchStart); - } - Jim_Free((void*)key); - Jim_Free(keyLen); - Jim_Free(value); - return resultObjPtr; -} - -/* [string] */ -static int Jim_StringCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int option; - const char *options[] = { - "length", "compare", "match", "equal", "range", "map", "repeat", - "index", "first", "tolower", "toupper", NULL - }; - enum { - OPT_LENGTH, OPT_COMPARE, OPT_MATCH, OPT_EQUAL, OPT_RANGE, - OPT_MAP, OPT_REPEAT, OPT_INDEX, OPT_FIRST, OPT_TOLOWER, OPT_TOUPPER - }; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?"); - return JIM_ERR; - } - if (Jim_GetEnum(interp, argv[1], options, &option, "option", - JIM_ERRMSG) != JIM_OK) - return JIM_ERR; - - if (option == OPT_LENGTH) { - int len; - - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "string"); - return JIM_ERR; - } - Jim_GetString(argv[2], &len); - Jim_SetResult(interp, Jim_NewIntObj(interp, len)); - return JIM_OK; - } else if (option == OPT_COMPARE) { - int nocase = 0; - if ((argc != 4 && argc != 5) || - (argc == 5 && Jim_CompareStringImmediate(interp, - argv[2], "-nocase") == 0)) { - Jim_WrongNumArgs(interp, 2, argv, "string1 string2"); - return JIM_ERR; - } - if (argc == 5) { - nocase = 1; - argv++; - } - Jim_SetResult(interp, Jim_NewIntObj(interp, - Jim_StringCompareObj(argv[2], - argv[3], nocase))); - return JIM_OK; - } else if (option == OPT_MATCH) { - int nocase = 0; - if ((argc != 4 && argc != 5) || - (argc == 5 && Jim_CompareStringImmediate(interp, - argv[2], "-nocase") == 0)) { - Jim_WrongNumArgs(interp, 2, argv, "?-nocase? pattern " - "string"); - return JIM_ERR; - } - if (argc == 5) { - nocase = 1; - argv++; - } - Jim_SetResult(interp, - Jim_NewIntObj(interp, Jim_StringMatchObj(argv[2], - argv[3], nocase))); - return JIM_OK; - } else if (option == OPT_EQUAL) { - if (argc != 4) { - Jim_WrongNumArgs(interp, 2, argv, "string1 string2"); - return JIM_ERR; - } - Jim_SetResult(interp, - Jim_NewIntObj(interp, Jim_StringEqObj(argv[2], - argv[3], 0))); - return JIM_OK; - } else if (option == OPT_RANGE) { - Jim_Obj *objPtr; - - if (argc != 5) { - Jim_WrongNumArgs(interp, 2, argv, "string first last"); - return JIM_ERR; - } - objPtr = Jim_StringRangeObj(interp, argv[2], argv[3], argv[4]); - if (objPtr == NULL) - return JIM_ERR; - Jim_SetResult(interp, objPtr); - return JIM_OK; - } else if (option == OPT_MAP) { - int nocase = 0; - Jim_Obj *objPtr; - - if ((argc != 4 && argc != 5) || - (argc == 5 && Jim_CompareStringImmediate(interp, - argv[2], "-nocase") == 0)) { - Jim_WrongNumArgs(interp, 2, argv, "?-nocase? mapList " - "string"); - return JIM_ERR; - } - if (argc == 5) { - nocase = 1; - argv++; - } - objPtr = JimStringMap(interp, argv[2], argv[3], nocase); - if (objPtr == NULL) - return JIM_ERR; - Jim_SetResult(interp, objPtr); - return JIM_OK; - } else if (option == OPT_REPEAT) { - Jim_Obj *objPtr; - jim_wide count; - - if (argc != 4) { - Jim_WrongNumArgs(interp, 2, argv, "string count"); - return JIM_ERR; - } - if (Jim_GetWide(interp, argv[3], &count) != JIM_OK) - return JIM_ERR; - objPtr = Jim_NewStringObj(interp, "", 0); - while (count--) { - Jim_AppendObj(interp, objPtr, argv[2]); - } - Jim_SetResult(interp, objPtr); - return JIM_OK; - } else if (option == OPT_INDEX) { - int index_t, len; - const char *str; - - if (argc != 4) { - Jim_WrongNumArgs(interp, 2, argv, "string index"); - return JIM_ERR; - } - if (Jim_GetIndex(interp, argv[3], &index_t) != JIM_OK) - return JIM_ERR; - str = Jim_GetString(argv[2], &len); - if (index_t != INT_MIN && index_t != INT_MAX) - index_t = JimRelToAbsIndex(len, index_t); - if (index_t < 0 || index_t >= len) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - return JIM_OK; - } else { - Jim_SetResult(interp, Jim_NewStringObj(interp, str + index_t, 1)); - return JIM_OK; - } - } else if (option == OPT_FIRST) { - int index_t = 0, l1, l2; - const char *s1, *s2; - - if (argc != 4 && argc != 5) { - Jim_WrongNumArgs(interp, 2, argv, "subString string ?startIndex?"); - return JIM_ERR; - } - s1 = Jim_GetString(argv[2], &l1); - s2 = Jim_GetString(argv[3], &l2); - if (argc == 5) { - if (Jim_GetIndex(interp, argv[4], &index_t) != JIM_OK) - return JIM_ERR; - index_t = JimRelToAbsIndex(l2, index_t); - } - Jim_SetResult(interp, Jim_NewIntObj(interp, - JimStringFirst(s1, l1, s2, l2, index_t))); - return JIM_OK; - } else if (option == OPT_TOLOWER) { - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "string"); - return JIM_ERR; - } - Jim_SetResult(interp, JimStringToLower(interp, argv[2])); - } else if (option == OPT_TOUPPER) { - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "string"); - return JIM_ERR; - } - Jim_SetResult(interp, JimStringToUpper(interp, argv[2])); - } - return JIM_OK; -} - -/* [time] */ -static int Jim_TimeCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - long i, count = 1; - jim_wide start, elapsed; - char buf [256]; - const char *fmt = "%" JIM_WIDE_MODIFIER " microseconds per iteration"; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "script ?count?"); - return JIM_ERR; - } - if (argc == 3) { - if (Jim_GetLong(interp, argv[2], &count) != JIM_OK) - return JIM_ERR; - } - if (count < 0) - return JIM_OK; - i = count; - start = JimClock(); - while (i-- > 0) { - int retval; - - if ((retval = Jim_EvalObj(interp, argv[1])) != JIM_OK) - return retval; - } - elapsed = JimClock() - start; - sprintf(buf, fmt, elapsed/count); - Jim_SetResultString(interp, buf, -1); - return JIM_OK; -} - -/* [exit] */ -static int Jim_ExitCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - long exitCode = 0; - - if (argc > 2) { - Jim_WrongNumArgs(interp, 1, argv, "?exitCode?"); - return JIM_ERR; - } - if (argc == 2) { - if (Jim_GetLong(interp, argv[1], &exitCode) != JIM_OK) - return JIM_ERR; - } - interp->exitCode = exitCode; - return JIM_EXIT; -} - -/* [catch] */ -static int Jim_CatchCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int exitCode = 0; - - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "script ?varName?"); - return JIM_ERR; - } - exitCode = Jim_EvalObj(interp, argv[1]); - if (argc == 3) { - if (Jim_SetVariable(interp, argv[2], Jim_GetResult(interp)) - != JIM_OK) - return JIM_ERR; - } - Jim_SetResult(interp, Jim_NewIntObj(interp, exitCode)); - return JIM_OK; -} - -/* [ref] */ -static int Jim_RefCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc != 3 && argc != 4) { - Jim_WrongNumArgs(interp, 1, argv, "string tag ?finalizer?"); - return JIM_ERR; - } - if (argc == 3) { - Jim_SetResult(interp, Jim_NewReference(interp, argv[1], argv[2], NULL)); - } else { - Jim_SetResult(interp, Jim_NewReference(interp, argv[1], argv[2], - argv[3])); - } - return JIM_OK; -} - -/* [getref] */ -static int Jim_GetrefCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Reference *refPtr; - - if (argc != 2) { - Jim_WrongNumArgs(interp, 1, argv, "reference"); - return JIM_ERR; - } - if ((refPtr = Jim_GetReference(interp, argv[1])) == NULL) - return JIM_ERR; - Jim_SetResult(interp, refPtr->objPtr); - return JIM_OK; -} - -/* [setref] */ -static int Jim_SetrefCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Reference *refPtr; - - if (argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "reference newValue"); - return JIM_ERR; - } - if ((refPtr = Jim_GetReference(interp, argv[1])) == NULL) - return JIM_ERR; - Jim_IncrRefCount(argv[2]); - Jim_DecrRefCount(interp, refPtr->objPtr); - refPtr->objPtr = argv[2]; - Jim_SetResult(interp, argv[2]); - return JIM_OK; -} - -/* [collect] */ -static int Jim_CollectCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc != 1) { - Jim_WrongNumArgs(interp, 1, argv, ""); - return JIM_ERR; - } - Jim_SetResult(interp, Jim_NewIntObj(interp, Jim_Collect(interp))); - return JIM_OK; -} - -/* [finalize] reference ?newValue? */ -static int Jim_FinalizeCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "reference ?finalizerProc?"); - return JIM_ERR; - } - if (argc == 2) { - Jim_Obj *cmdNamePtr; - - if (Jim_GetFinalizer(interp, argv[1], &cmdNamePtr) != JIM_OK) - return JIM_ERR; - if (cmdNamePtr != NULL) /* otherwise the null string is returned. */ - Jim_SetResult(interp, cmdNamePtr); - } else { - if (Jim_SetFinalizer(interp, argv[1], argv[2]) != JIM_OK) - return JIM_ERR; - Jim_SetResult(interp, argv[2]); - } - return JIM_OK; -} - -/* TODO */ -/* [info references] (list of all the references/finalizers) */ - -/* [rename] */ -static int Jim_RenameCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - const char *oldName, *newName; - - if (argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "oldName newName"); - return JIM_ERR; - } - oldName = Jim_GetString(argv[1], NULL); - newName = Jim_GetString(argv[2], NULL); - if (Jim_RenameCommand(interp, oldName, newName) != JIM_OK) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "can't rename \"", oldName, "\": ", - "command doesn't exist", NULL); - return JIM_ERR; - } - return JIM_OK; -} - -/* [dict] */ -static int Jim_DictCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int option; - const char *options[] = { - "create", "get", "set", "unset", "exists", NULL - }; - enum { - OPT_CREATE, OPT_GET, OPT_SET, OPT_UNSET, OPT_EXIST - }; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?"); - return JIM_ERR; - } - - if (Jim_GetEnum(interp, argv[1], options, &option, "option", - JIM_ERRMSG) != JIM_OK) - return JIM_ERR; - - if (option == OPT_CREATE) { - Jim_Obj *objPtr; - - if (argc % 2) { - Jim_WrongNumArgs(interp, 2, argv, "?key value ...?"); - return JIM_ERR; - } - objPtr = Jim_NewDictObj(interp, argv + 2, argc-2); - Jim_SetResult(interp, objPtr); - return JIM_OK; - } else if (option == OPT_GET) { - Jim_Obj *objPtr; - - if (Jim_DictKeysVector(interp, argv[2], argv + 3, argc-3, &objPtr, - JIM_ERRMSG) != JIM_OK) - return JIM_ERR; - Jim_SetResult(interp, objPtr); - return JIM_OK; - } else if (option == OPT_SET) { - if (argc < 5) { - Jim_WrongNumArgs(interp, 2, argv, "varName key ?key ...? value"); - return JIM_ERR; - } - return Jim_SetDictKeysVector(interp, argv[2], argv + 3, argc-4, - argv[argc-1]); - } else if (option == OPT_UNSET) { - if (argc < 4) { - Jim_WrongNumArgs(interp, 2, argv, "varName key ?key ...?"); - return JIM_ERR; - } - return Jim_SetDictKeysVector(interp, argv[2], argv + 3, argc-3, - NULL); - } else if (option == OPT_EXIST) { - Jim_Obj *objPtr; - int exists; - - if (Jim_DictKeysVector(interp, argv[2], argv + 3, argc-3, &objPtr, - JIM_ERRMSG) == JIM_OK) - exists = 1; - else - exists = 0; - Jim_SetResult(interp, Jim_NewIntObj(interp, exists)); - return JIM_OK; - } else { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad option \"", Jim_GetString(argv[1], NULL), "\":", - " must be create, get, set", NULL); - return JIM_ERR; - } - return JIM_OK; -} - -/* [load] */ -static int Jim_LoadCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "libaryFile"); - return JIM_ERR; - } - return Jim_LoadLibrary(interp, Jim_GetString(argv[1], NULL)); -} - -/* [subst] */ -static int Jim_SubstCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int i, flags = 0; - Jim_Obj *objPtr; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, - "?-nobackslashes? ?-nocommands? ?-novariables? string"); - return JIM_ERR; - } - i = argc-2; - while (i--) { - if (Jim_CompareStringImmediate(interp, argv[i + 1], - "-nobackslashes")) - flags |= JIM_SUBST_NOESC; - else if (Jim_CompareStringImmediate(interp, argv[i + 1], - "-novariables")) - flags |= JIM_SUBST_NOVAR; - else if (Jim_CompareStringImmediate(interp, argv[i + 1], - "-nocommands")) - flags |= JIM_SUBST_NOCMD; - else { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "bad option \"", Jim_GetString(argv[i + 1], NULL), - "\": must be -nobackslashes, -nocommands, or " - "-novariables", NULL); - return JIM_ERR; - } - } - if (Jim_SubstObj(interp, argv[argc-1], &objPtr, flags) != JIM_OK) - return JIM_ERR; - Jim_SetResult(interp, objPtr); - return JIM_OK; -} - -/* [info] */ -static int Jim_InfoCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int cmd, result = JIM_OK; - static const char *commands[] = { - "body", "commands", "exists", "globals", "level", "locals", - "vars", "version", "complete", "args", "hostname", NULL - }; - enum {INFO_BODY, INFO_COMMANDS, INFO_EXISTS, INFO_GLOBALS, INFO_LEVEL, - INFO_LOCALS, INFO_VARS, INFO_VERSION, INFO_COMPLETE, INFO_ARGS, INFO_HOSTNAME}; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "command ?args ...?"); - return JIM_ERR; - } - if (Jim_GetEnum(interp, argv[1], commands, &cmd, "command", JIM_ERRMSG) - != JIM_OK) { - return JIM_ERR; - } - - if (cmd == INFO_COMMANDS) { - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "?pattern?"); - return JIM_ERR; - } - if (argc == 3) - Jim_SetResult(interp,JimCommandsList(interp, argv[2])); - else - Jim_SetResult(interp, JimCommandsList(interp, NULL)); - } else if (cmd == INFO_EXISTS) { - Jim_Obj *exists; - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "varName"); - return JIM_ERR; - } - exists = Jim_GetVariable(interp, argv[2], 0); - Jim_SetResult(interp, Jim_NewIntObj(interp, exists != 0)); - } else if (cmd == INFO_GLOBALS || cmd == INFO_LOCALS || cmd == INFO_VARS) { - int mode; - switch (cmd) { - case INFO_GLOBALS: mode = JIM_VARLIST_GLOBALS; break; - case INFO_LOCALS: mode = JIM_VARLIST_LOCALS; break; - case INFO_VARS: mode = JIM_VARLIST_VARS; break; - default: mode = 0; /* avoid warning */; break; - } - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "?pattern?"); - return JIM_ERR; - } - if (argc == 3) - Jim_SetResult(interp,JimVariablesList(interp, argv[2], mode)); - else - Jim_SetResult(interp, JimVariablesList(interp, NULL, mode)); - } else if (cmd == INFO_LEVEL) { - Jim_Obj *objPtr; - switch (argc) { - case 2: - Jim_SetResult(interp, - Jim_NewIntObj(interp, interp->numLevels)); - break; - case 3: - if (JimInfoLevel(interp, argv[2], &objPtr) != JIM_OK) - return JIM_ERR; - Jim_SetResult(interp, objPtr); - break; - default: - Jim_WrongNumArgs(interp, 2, argv, "?levelNum?"); - return JIM_ERR; - } - } else if (cmd == INFO_BODY || cmd == INFO_ARGS) { - Jim_Cmd *cmdPtr; - - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "procname"); - return JIM_ERR; - } - if ((cmdPtr = Jim_GetCommand(interp, argv[2], JIM_ERRMSG)) == NULL) - return JIM_ERR; - if (cmdPtr->cmdProc != NULL) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "command \"", Jim_GetString(argv[2], NULL), - "\" is not a procedure", NULL); - return JIM_ERR; - } - if (cmd == INFO_BODY) - Jim_SetResult(interp, cmdPtr->bodyObjPtr); - else - Jim_SetResult(interp, cmdPtr->argListObjPtr); - } else if (cmd == INFO_VERSION) { - char buf[(JIM_INTEGER_SPACE * 2) + 1]; - sprintf(buf, "%d.%d", - JIM_VERSION / 100, JIM_VERSION % 100); - Jim_SetResultString(interp, buf, -1); - } else if (cmd == INFO_COMPLETE) { - const char *s; - int len; - - if (argc != 3) { - Jim_WrongNumArgs(interp, 2, argv, "script"); - return JIM_ERR; - } - s = Jim_GetString(argv[2], &len); - Jim_SetResult(interp, - Jim_NewIntObj(interp, Jim_ScriptIsComplete(s, len, NULL))); - } else if (cmd == INFO_HOSTNAME) { - /* Redirect to os.hostname if it exists */ - Jim_Obj *command = Jim_NewStringObj(interp, "os.gethostname", -1); - result = Jim_EvalObjVector(interp, 1, &command); - } - return result; -} - -/* [split] */ -static int Jim_SplitCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - const char *str, *splitChars, *noMatchStart; - int splitLen, strLen, i; - Jim_Obj *resObjPtr; - - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "string ?splitChars?"); - return JIM_ERR; - } - /* Init */ - if (argc == 2) { - splitChars = " \n\t\r"; - splitLen = 4; - } else { - splitChars = Jim_GetString(argv[2], &splitLen); - } - str = Jim_GetString(argv[1], &strLen); - if (!strLen) return JIM_OK; - noMatchStart = str; - resObjPtr = Jim_NewListObj(interp, NULL, 0); - /* Split */ - if (splitLen) { - while (strLen) { - for (i = 0; i < splitLen; i++) { - if (*str == splitChars[i]) { - Jim_Obj *objPtr; - - objPtr = Jim_NewStringObj(interp, noMatchStart, - (str-noMatchStart)); - Jim_ListAppendElement(interp, resObjPtr, objPtr); - noMatchStart = str + 1; - break; - } - } - str ++; - strLen --; - } - Jim_ListAppendElement(interp, resObjPtr, - Jim_NewStringObj(interp, noMatchStart, (str-noMatchStart))); - } else { - /* This handles the special case of splitchars eq {}. This - * is trivial but we want to perform object sharing as Tcl does. */ - Jim_Obj *objCache[256]; - const unsigned char *u = (unsigned char*) str; - memset(objCache, 0, sizeof(objCache)); - for (i = 0; i < strLen; i++) { - int c = u[i]; - - if (objCache[c] == NULL) - objCache[c] = Jim_NewStringObj(interp, (char*)u + i, 1); - Jim_ListAppendElement(interp, resObjPtr, objCache[c]); - } - } - Jim_SetResult(interp, resObjPtr); - return JIM_OK; -} - -/* [join] */ -static int Jim_JoinCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - const char *joinStr; - int joinStrLen, i, listLen; - Jim_Obj *resObjPtr; - - if (argc != 2 && argc != 3) { - Jim_WrongNumArgs(interp, 1, argv, "list ?joinString?"); - return JIM_ERR; - } - /* Init */ - if (argc == 2) { - joinStr = " "; - joinStrLen = 1; - } else { - joinStr = Jim_GetString(argv[2], &joinStrLen); - } - Jim_ListLength(interp, argv[1], &listLen); - resObjPtr = Jim_NewStringObj(interp, NULL, 0); - /* Split */ - for (i = 0; i < listLen; i++) { - Jim_Obj *objPtr=NULL; - - Jim_ListIndex(interp, argv[1], i, &objPtr, JIM_NONE); - Jim_AppendObj(interp, resObjPtr, objPtr); - if (i + 1 != listLen) { - Jim_AppendString(interp, resObjPtr, joinStr, joinStrLen); - } - } - Jim_SetResult(interp, resObjPtr); - return JIM_OK; -} - -/* [format] */ -static int Jim_FormatCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *objPtr; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "formatString ?arg arg ...?"); - return JIM_ERR; - } - objPtr = Jim_FormatString(interp, argv[1], argc-2, argv + 2); - if (objPtr == NULL) - return JIM_ERR; - Jim_SetResult(interp, objPtr); - return JIM_OK; -} - -/* [scan] */ -static int Jim_ScanCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *listPtr, **outVec; - int outc, i, count = 0; - - if (argc < 3) { - Jim_WrongNumArgs(interp, 1, argv, "string formatString ?varName ...?"); - return JIM_ERR; - } - if (argv[2]->typePtr != &scanFmtStringObjType) - SetScanFmtFromAny(interp, argv[2]); - if (FormatGetError(argv[2]) != 0) { - Jim_SetResultString(interp, FormatGetError(argv[2]), -1); - return JIM_ERR; - } - if (argc > 3) { - int maxPos = FormatGetMaxPos(argv[2]); - int arg_count = FormatGetCnvCount(argv[2]); - if (maxPos > argc-3) { - Jim_SetResultString(interp, "\"%n$\" argument index out of range", -1); - return JIM_ERR; - } else if (arg_count != 0 && arg_count < argc-3) { - Jim_SetResultString(interp, "variable is not assigned by any " - "conversion specifiers", -1); - return JIM_ERR; - } else if (arg_count > argc-3) { - Jim_SetResultString(interp, "different numbers of variable names and " - "field specifiers", -1); - return JIM_ERR; - } - } - listPtr = Jim_ScanString(interp, argv[1], argv[2], JIM_ERRMSG); - if (listPtr == 0) - return JIM_ERR; - if (argc > 3) { - int len = 0; - if (listPtr != 0 && listPtr != (Jim_Obj*)EOF) - Jim_ListLength(interp, listPtr, &len); - if (listPtr == (Jim_Obj*)EOF || len == 0) { // XXX - Jim_SetResult(interp, Jim_NewIntObj(interp, -1)); - return JIM_OK; - } - JimListGetElements(interp, listPtr, &outc, &outVec); - for (i = 0; i < outc; ++i) { - if (Jim_Len - -/* [error] */ -static int Jim_ErrorCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - if (argc != 2) { - Jim_WrongNumArgs(interp, 1, argv, "message"); - return JIM_ERR; - } - Jim_SetResult(interp, argv[1]); - return JIM_ERR; -} - -/* [lrange] */ -static int Jim_LrangeCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *objPtr; - - if (argc != 4) { - Jim_WrongNumArgs(interp, 1, argv, "list first last"); - return JIM_ERR; - } - if ((objPtr = Jim_ListRange(interp, argv[1], argv[2], argv[3])) == NULL) - return JIM_ERR; - Jim_SetResult(interp, objPtr); - return JIM_OK; -} - -/* [env] */ -static int Jim_EnvCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - const char *key; - char *val; - - if (argc == 1) { - -#ifdef NEED_ENVIRON_EXTERN - extern char **environ; -#endif - - int i; - Jim_Obj *listObjPtr = Jim_NewListObj(interp, NULL, 0); - - for (i = 0; environ[i]; i++) { - const char *equals = strchr(environ[i], '='); - if (equals) { - Jim_ListAppendElement(interp, listObjPtr, Jim_NewStringObj(interp, environ[i], equals - environ[i])); - Jim_ListAppendElement(interp, listObjPtr, Jim_NewStringObj(interp, equals + 1, -1)); - } - } - - Jim_SetResult(interp, listObjPtr); - return JIM_OK; - } - - if (argc != 2) { - Jim_WrongNumArgs(interp, 1, argv, "varName"); - return JIM_ERR; - } - key = Jim_GetString(argv[1], NULL); - val = getenv(key); - if (val == NULL) { - Jim_SetResult(interp, Jim_NewEmptyStringObj(interp)); - Jim_AppendStrings(interp, Jim_GetResult(interp), - "environment variable \"", - key, "\" does not exist", NULL); - return JIM_ERR; - } - Jim_SetResult(interp, Jim_NewStringObj(interp, val, -1)); - return JIM_OK; -} - -/* [source] */ -static int Jim_SourceCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int retval; - - if (argc != 2) { - Jim_WrongNumArgs(interp, 1, argv, "fileName"); - return JIM_ERR; - } - retval = Jim_EvalFile(interp, Jim_GetString(argv[1], NULL)); - if (retval == JIM_ERR) { - return JIM_ERR_ADDSTACK; - } - if (retval == JIM_RETURN) - return JIM_OK; - return retval; -} - -/* [lreverse] */ -static int Jim_LreverseCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - Jim_Obj *revObjPtr, **ele; - int len; - - if (argc != 2) { - Jim_WrongNumArgs(interp, 1, argv, "list"); - return JIM_ERR; - } - JimListGetElements(interp, argv[1], &len, &ele); - len--; - revObjPtr = Jim_NewListObj(interp, NULL, 0); - while (len >= 0) - ListAppendElement(revObjPtr, ele[len--]); - Jim_SetResult(interp, revObjPtr); - return JIM_OK; -} - -static int JimRangeLen(jim_wide start, jim_wide end, jim_wide step) -{ - jim_wide len; - - if (step == 0) return -1; - if (start == end) return 0; - else if (step > 0 && start > end) return -1; - else if (step < 0 && end > start) return -1; - len = end-start; - if (len < 0) len = -len; /* abs(len) */ - if (step < 0) step = -step; /* abs(step) */ - len = 1 + ((len-1)/step); - /* We can truncate safely to INT_MAX, the range command - * will always return an error for a such long range - * because Tcl lists can't be so long. */ - if (len > INT_MAX) len = INT_MAX; - return (int)((len < 0) ? -1 : len); -} - -/* [range] */ -static int Jim_RangeCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - jim_wide start = 0, end, step = 1; - int len, i; - Jim_Obj *objPtr; - - if (argc < 2 || argc > 4) { - Jim_WrongNumArgs(interp, 1, argv, "?start? end ?step?"); - return JIM_ERR; - } - if (argc == 2) { - if (Jim_GetWide(interp, argv[1], &end) != JIM_OK) - return JIM_ERR; - } else { - if (Jim_GetWide(interp, argv[1], &start) != JIM_OK || - Jim_GetWide(interp, argv[2], &end) != JIM_OK) - return JIM_ERR; - if (argc == 4 && Jim_GetWide(interp, argv[3], &step) != JIM_OK) - return JIM_ERR; - } - if ((len = JimRangeLen(start, end, step)) == -1) { - Jim_SetResultString(interp, "Invalid (infinite?) range specified", -1); - return JIM_ERR; - } - objPtr = Jim_NewListObj(interp, NULL, 0); - for (i = 0; i < len; i++) - ListAppendElement(objPtr, Jim_NewIntObj(interp, start + i*step)); - Jim_SetResult(interp, objPtr); - return JIM_OK; -} - -/* [rand] */ -static int Jim_RandCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - jim_wide min = 0, max =0, len, maxMul; - - if (argc < 1 || argc > 3) { - Jim_WrongNumArgs(interp, 1, argv, "?min? max"); - return JIM_ERR; - } - if (argc == 1) { - max = JIM_WIDE_MAX; - } else if (argc == 2) { - if (Jim_GetWide(interp, argv[1], &max) != JIM_OK) - return JIM_ERR; - } else if (argc == 3) { - if (Jim_GetWide(interp, argv[1], &min) != JIM_OK || - Jim_GetWide(interp, argv[2], &max) != JIM_OK) - return JIM_ERR; - } - len = max-min; - if (len < 0) { - Jim_SetResultString(interp, "Invalid arguments (max < min)", -1); - return JIM_ERR; - } - maxMul = JIM_WIDE_MAX - (len ? (JIM_WIDE_MAX%len) : 0); - while (1) { - jim_wide r; - - JimRandomBytes(interp, &r, sizeof(jim_wide)); - if (r < 0 || r >= maxMul) continue; - r = (len == 0) ? 0 : r%len; - Jim_SetResult(interp, Jim_NewIntObj(interp, min + r)); - return JIM_OK; - } -} - -/* [package] */ -static int Jim_PackageCoreCommand(Jim_Interp *interp, int argc, - Jim_Obj *const *argv) -{ - int option; - const char *options[] = { - "require", "provide", NULL - }; - enum {OPT_REQUIRE, OPT_PROVIDE}; - - if (argc < 2) { - Jim_WrongNumArgs(interp, 1, argv, "option ?arguments ...?"); - return JIM_ERR; - } - if (Jim_GetEnum(interp, argv[1], options, &option, "option", - JIM_ERRMSG) != JIM_OK) - return JIM_ERR; - - if (option == OPT_REQUIRE) { - int exact = 0; - const char *ver; - - if (Jim_CompareStringImmediate(interp, argv[2], "-exact")) { - exact = 1; - argv++; - argc--; - } - if (argc != 3 && argc != 4) { - Jim_WrongNumArgs(interp, 2, argv, "?-exact? package ?version?"); - return JIM_ERR; - } - ver = Jim_PackageRequire(interp, Jim_GetString(argv[2], NULL), - argc == 4 ? Jim_GetString(argv[3], NULL) : "", - JIM_ERRMSG); - if (ver == NULL) - return JIM_ERR_ADDSTACK; - Jim_SetResultString(interp, ver, -1); - } else if (option == OPT_PROVIDE) { - if (argc != 4) { - Jim_WrongNumArgs(interp, 2, argv, "package version"); - return JIM_ERR; - } - return Jim_PackageProvide(interp, Jim_GetString(argv[2], NULL), - Jim_GetString(argv[3], NULL), JIM_ERRMSG); - } - return JIM_OK; -} - -static struct { - const char *name; - Jim_CmdProc cmdProc; -} Jim_CoreCommandsTable[] = { - {"set", Jim_SetCoreCommand}, - {"unset", Jim_UnsetCoreCommand}, - {"puts", Jim_PutsCoreCommand}, - {"+", Jim_AddCoreCommand}, - {"*", Jim_MulCoreCommand}, - {"-", Jim_SubCoreCommand}, - {"/", Jim_DivCoreCommand}, - {"incr", Jim_IncrCoreCommand}, - {"while", Jim_WhileCoreCommand}, - {"for", Jim_ForCoreCommand}, - {"foreach", Jim_ForeachCoreCommand}, - {"lmap", Jim_LmapCoreCommand}, - {"if", Jim_IfCoreCommand}, - {"switch", Jim_SwitchCoreCommand}, - {"list", Jim_ListCoreCommand}, - {"lindex", Jim_LindexCoreCommand}, - {"lset", Jim_LsetCoreCommand}, - {"llength", Jim_LlengthCoreCommand}, - {"lappend", Jim_LappendCoreCommand}, - {"linsert", Jim_LinsertCoreCommand}, - {"lsort", Jim_LsortCoreCommand}, - {"append", Jim_AppendCoreCommand}, - {"debug", Jim_DebugCoreCommand}, - {"eval", Jim_EvalCoreCommand}, - {"uplevel", Jim_UplevelCoreCommand}, - {"expr", Jim_ExprCoreCommand}, - {"break", Jim_BreakCoreCommand}, - {"continue", Jim_ContinueCoreCommand}, - {"proc", Jim_ProcCoreCommand}, - {"concat", Jim_ConcatCoreCommand}, - {"return", Jim_ReturnCoreCommand}, - {"upvar", Jim_UpvarCoreCommand}, - {"global", Jim_GlobalCoreCommand}, - {"string", Jim_StringCoreCommand}, - {"time", Jim_TimeCoreCommand}, - {"exit", Jim_ExitCoreCommand}, - {"catch", Jim_CatchCoreCommand}, - {"ref", Jim_RefCoreCommand}, - {"getref", Jim_GetrefCoreCommand}, - {"setref", Jim_SetrefCoreCommand}, - {"finalize", Jim_FinalizeCoreCommand}, - {"collect", Jim_CollectCoreCommand}, - {"rename", Jim_RenameCoreCommand}, - {"dict", Jim_DictCoreCommand}, - {"load", Jim_LoadCoreCommand}, - {"subst", Jim_SubstCoreCommand}, - {"info", Jim_InfoCoreCommand}, - {"split", Jim_SplitCoreCommand}, - {"join", Jim_JoinCoreCommand}, - {"format", Jim_FormatCoreCommand}, - {"scan", Jim_ScanCoreCommand}, - {"error", Jim_ErrorCoreCommand}, - {"lrange", Jim_LrangeCoreCommand}, - {"env", Jim_EnvCoreCommand}, - {"source", Jim_SourceCoreCommand}, - {"lreverse", Jim_LreverseCoreCommand}, - {"range", Jim_RangeCoreCommand}, - {"rand", Jim_RandCoreCommand}, - {"package", Jim_PackageCoreCommand}, - {"tailcall", Jim_TailcallCoreCommand}, - {NULL, NULL}, -}; - -/* Some Jim core command is actually a procedure written in Jim itself. */ -static void Jim_RegisterCoreProcedures(Jim_Interp *interp) -{ - Jim_Eval(interp, (char*) -"proc lambda {arglist args} {\n" -" set name [ref {} function lambdaFinalizer]\n" -" uplevel 1 [list proc $name $arglist {expand}$args]\n" -" return $name\n" -"}\n" -"proc lambdaFinalizer {name val} {\n" -" rename $name {}\n" -"}\n" -); -} - -void Jim_RegisterCoreCommands(Jim_Interp *interp) -{ - int i = 0; - - while (Jim_CoreCommandsTable[i].name != NULL) { - Jim_CreateCommand(interp, - Jim_CoreCommandsTable[i].name, - Jim_CoreCommandsTable[i].cmdProc, - NULL, NULL); - i++; - } - Jim_RegisterCoreProcedures(interp); -} - -/* ----------------------------------------------------------------------------- - * Interactive prompt - * ---------------------------------------------------------------------------*/ -void Jim_PrintErrorMessage(Jim_Interp *interp) -{ - int len, i; - - if (*interp->errorFileName) { - Jim_fprintf(interp, interp->cookie_stderr, "Runtime error, file \"%s\", line %d:" JIM_NL " ", - interp->errorFileName, interp->errorLine); - } - Jim_fprintf(interp,interp->cookie_stderr, "%s" JIM_NL, - Jim_GetString(interp->result, NULL)); - Jim_ListLength(interp, interp->stackTrace, &len); - for (i = len-3; i >= 0; i-= 3) { - Jim_Obj *objPtr=NULL; - const char *proc, *file, *line; - - Jim_ListIndex(interp, interp->stackTrace, i, &objPtr, JIM_NONE); - proc = Jim_GetString(objPtr, NULL); - Jim_ListIndex(interp, interp->stackTrace, i + 1, &objPtr, - JIM_NONE); - file = Jim_GetString(objPtr, NULL); - Jim_ListIndex(interp, interp->stackTrace, i + 2, &objPtr, - JIM_NONE); - line = Jim_GetString(objPtr, NULL); - if (*proc) { - Jim_fprintf(interp, interp->cookie_stderr, - "in procedure '%s' ", proc); - } - if (*file) { - Jim_fprintf(interp, interp->cookie_stderr, - "called at file \"%s\", line %s", - file, line); - } - if (*file || *proc) { - Jim_fprintf(interp, interp->cookie_stderr, JIM_NL); - } - } -} - -int Jim_InteractivePrompt(Jim_Interp *interp) -{ - int retcode = JIM_OK; - Jim_Obj *scriptObjPtr; - - Jim_fprintf(interp,interp->cookie_stdout, "Welcome to Jim version %d.%d, " - "Copyright (c) 2005-8 Salvatore Sanfilippo" JIM_NL, - JIM_VERSION / 100, JIM_VERSION % 100); - Jim_SetVariableStrWithStr(interp, "jim_interactive", "1"); - while (1) { - char buf[1024]; - const char *result; - const char *retcodestr[] = { - "ok", "error", "return", "break", "continue", "eval", "exit" - }; - int reslen; - - if (retcode != 0) { - if (retcode >= 2 && retcode <= 6) - Jim_fprintf(interp,interp->cookie_stdout, "[%s] . ", retcodestr[retcode]); - else - Jim_fprintf(interp,interp->cookie_stdout, "[%d] . ", retcode); - } else - Jim_fprintf(interp, interp->cookie_stdout, ". "); - Jim_fflush(interp, interp->cookie_stdout); - scriptObjPtr = Jim_NewStringObj(interp, "", 0); - Jim_IncrRefCount(scriptObjPtr); - while (1) { - const char *str; - char state; - int len; - - if (Jim_fgets(interp, buf, 1024, interp->cookie_stdin) == NULL) { - Jim_DecrRefCount(interp, scriptObjPtr); - goto out; - } - Jim_AppendString(interp, scriptObjPtr, buf, -1); - str = Jim_GetString(scriptObjPtr, &len); - if (Jim_ScriptIsComplete(str, len, &state)) - break; - Jim_fprintf(interp, interp->cookie_stdout, "%c> ", state); - Jim_fflush(interp, interp->cookie_stdout); - } - retcode = Jim_EvalObj(interp, scriptObjPtr); - Jim_DecrRefCount(interp, scriptObjPtr); - result = Jim_GetString(Jim_GetResult(interp), &reslen); - if (retcode == JIM_ERR) { - Jim_PrintErrorMessage(interp); - } else if (retcode == JIM_EXIT) { - exit(Jim_GetExitCode(interp)); - } else { - if (reslen) { - Jim_fwrite(interp, result, 1, reslen, interp->cookie_stdout); - Jim_fprintf(interp,interp->cookie_stdout, JIM_NL); - } - } - } -out: - return 0; -} - -/* ----------------------------------------------------------------------------- - * Jim's idea of STDIO.. - * ---------------------------------------------------------------------------*/ - -int Jim_fprintf(Jim_Interp *interp, void *cookie, const char *fmt, ...) -{ - int r; - - va_list ap; - va_start(ap,fmt); - r = Jim_vfprintf(interp, cookie, fmt,ap); - va_end(ap); - return r; -} - -int Jim_vfprintf(Jim_Interp *interp, void *cookie, const char *fmt, va_list ap) -{ - if ((interp == NULL) || (interp->cb_vfprintf == NULL)) { - errno = ENOTSUP; - return -1; - } - return (*(interp->cb_vfprintf))(cookie, fmt, ap); -} - -size_t Jim_fwrite(Jim_Interp *interp, const void *ptr, size_t size, size_t n, void *cookie) -{ - if ((interp == NULL) || (interp->cb_fwrite == NULL)) { - errno = ENOTSUP; - return 0; - } - return (*(interp->cb_fwrite))(ptr, size, n, cookie); -} - -size_t Jim_fread(Jim_Interp *interp, void *ptr, size_t size, size_t n, void *cookie) -{ - if ((interp == NULL) || (interp->cb_fread == NULL)) { - errno = ENOTSUP; - return 0; - } - return (*(interp->cb_fread))(ptr, size, n, cookie); -} - -int Jim_fflush(Jim_Interp *interp, void *cookie) -{ - if ((interp == NULL) || (interp->cb_fflush == NULL)) { - /* pretend all is well */ - return 0; - } - return (*(interp->cb_fflush))(cookie); -} - -char* Jim_fgets(Jim_Interp *interp, char *s, int size, void *cookie) -{ - if ((interp == NULL) || (interp->cb_fgets == NULL)) { - errno = ENOTSUP; - return NULL; - } - return (*(interp->cb_fgets))(s, size, cookie); -} -Jim_Nvp * -Jim_Nvp_name2value_simple(const Jim_Nvp *p, const char *name) -{ - while (p->name) { - if (0 == strcmp(name, p->name)) { - break; - } - p++; - } - return ((Jim_Nvp *)(p)); -} - -Jim_Nvp * -Jim_Nvp_name2value_nocase_simple(const Jim_Nvp *p, const char *name) -{ - while (p->name) { - if (0 == strcasecmp(name, p->name)) { - break; - } - p++; - } - return ((Jim_Nvp *)(p)); -} - -int -Jim_Nvp_name2value_obj(Jim_Interp *interp, - const Jim_Nvp *p, - Jim_Obj *o, - Jim_Nvp **result) -{ - return Jim_Nvp_name2value(interp, p, Jim_GetString(o, NULL), result); -} - - -int -Jim_Nvp_name2value(Jim_Interp *interp, - const Jim_Nvp *_p, - const char *name, - Jim_Nvp **result) -{ - const Jim_Nvp *p; - - p = Jim_Nvp_name2value_simple(_p, name); - - /* result */ - if (result) { - *result = (Jim_Nvp *)(p); - } - - /* found? */ - if (p->name) { - return JIM_OK; - } else { - return JIM_ERR; - } -} - -int -Jim_Nvp_name2value_obj_nocase(Jim_Interp *interp, const Jim_Nvp *p, Jim_Obj *o, Jim_Nvp **puthere) -{ - return Jim_Nvp_name2value_nocase(interp, p, Jim_GetString(o, NULL), puthere); -} - -int -Jim_Nvp_name2value_nocase(Jim_Interp *interp, const Jim_Nvp *_p, const char *name, Jim_Nvp **puthere) -{ - const Jim_Nvp *p; - - p = Jim_Nvp_name2value_nocase_simple(_p, name); - - if (puthere) { - *puthere = (Jim_Nvp *)(p); - } - /* found */ - if (p->name) { - return JIM_OK; - } else { - return JIM_ERR; - } -} - - -int -Jim_Nvp_value2name_obj(Jim_Interp *interp, const Jim_Nvp *p, Jim_Obj *o, Jim_Nvp **result) -{ - int e;; - jim_wide w; - - e = Jim_GetWide(interp, o, &w); - if (e != JIM_OK) { - return e; - } - - return Jim_Nvp_value2name(interp, p, w, result); -} - -Jim_Nvp * -Jim_Nvp_value2name_simple(const Jim_Nvp *p, int value) -{ - while (p->name) { - if (value == p->value) { - break; - } - p++; - } - return ((Jim_Nvp *)(p)); -} - - -int -Jim_Nvp_value2name(Jim_Interp *interp, const Jim_Nvp *_p, int value, Jim_Nvp **result) -{ - const Jim_Nvp *p; - - p = Jim_Nvp_value2name_simple(_p, value); - - if (result) { - *result = (Jim_Nvp *)(p); - } - - if (p->name) { - return JIM_OK; - } else { - return JIM_ERR; - } -} - - -int -Jim_GetOpt_Setup(Jim_GetOptInfo *p, Jim_Interp *interp, int argc, Jim_Obj * const * argv) -{ - memset(p, 0, sizeof(*p)); - p->interp = interp; - p->argc = argc; - p->argv = argv; - - return JIM_OK; -} - -void -Jim_GetOpt_Debug(Jim_GetOptInfo *p) -{ - int x; - - Jim_fprintf(p->interp, p->interp->cookie_stderr, "---args---\n"); - for (x = 0 ; x < p->argc ; x++) { - Jim_fprintf(p->interp, p->interp->cookie_stderr, - "%2d) %s\n", - x, - Jim_GetString(p->argv[x], NULL)); - } - Jim_fprintf(p->interp, p->interp->cookie_stderr, "-------\n"); -} - - -int -Jim_GetOpt_Obj(Jim_GetOptInfo *goi, Jim_Obj **puthere) -{ - Jim_Obj *o; - - o = NULL; // failure - if (goi->argc) { - // success - o = goi->argv[0]; - goi->argc -= 1; - goi->argv += 1; - } - if (puthere) { - *puthere = o; - } - if (o != NULL) { - return JIM_OK; - } else { - return JIM_ERR; - } -} - -int -Jim_GetOpt_String(Jim_GetOptInfo *goi, char **puthere, int *len) -{ - int r; - Jim_Obj *o; - const char *cp; - - - r = Jim_GetOpt_Obj(goi, &o); - if (r == JIM_OK) { - cp = Jim_GetString(o, len); - if (puthere) { - /* remove const */ - *puthere = (char *)(cp); - } - } - return r; -} - -int -Jim_GetOpt_Double(Jim_GetOptInfo *goi, double *puthere) -{ - int r; - Jim_Obj *o; - double _safe; - - if (puthere == NULL) { - puthere = &_safe; - } - - r = Jim_GetOpt_Obj(goi, &o); - if (r == JIM_OK) { - r = Jim_GetDouble(goi->interp, o, puthere); - if (r != JIM_OK) { - Jim_SetResult_sprintf(goi->interp, - "not a number: %s", - Jim_GetString(o, NULL)); - } - } - return r; -} - -int -Jim_GetOpt_Wide(Jim_GetOptInfo *goi, jim_wide *puthere) -{ - int r; - Jim_Obj *o; - jim_wide _safe; - - if (puthere == NULL) { - puthere = &_safe; - } - - r = Jim_GetOpt_Obj(goi, &o); - if (r == JIM_OK) { - r = Jim_GetWide(goi->interp, o, puthere); - } - return r; -} - -int Jim_GetOpt_Nvp(Jim_GetOptInfo *goi, - const Jim_Nvp *nvp, - Jim_Nvp **puthere) -{ - Jim_Nvp *_safe; - Jim_Obj *o; - int e; - - if (puthere == NULL) { - puthere = &_safe; - } - - e = Jim_GetOpt_Obj(goi, &o); - if (e == JIM_OK) { - e = Jim_Nvp_name2value_obj(goi->interp, - nvp, - o, - puthere); - } - - return e; -} - -void -Jim_GetOpt_NvpUnknown(Jim_GetOptInfo *goi, - const Jim_Nvp *nvptable, - int hadprefix) -{ - if (hadprefix) { - Jim_SetResult_NvpUnknown(goi->interp, - goi->argv[-2], - goi->argv[-1], - nvptable); - } else { - Jim_SetResult_NvpUnknown(goi->interp, - NULL, - goi->argv[-1], - nvptable); - } -} - - -int -Jim_GetOpt_Enum(Jim_GetOptInfo *goi, - const char * const * lookup, - int *puthere) -{ - int _safe; - Jim_Obj *o; - int e; - - if (puthere == NULL) { - puthere = &_safe; - } - e = Jim_GetOpt_Obj(goi, &o); - if (e == JIM_OK) { - e = Jim_GetEnum(goi->interp, - o, - lookup, - puthere, - "option", - JIM_ERRMSG); - } - return e; -} - - - -int -Jim_SetResult_sprintf(Jim_Interp *interp, const char *fmt,...) -{ - va_list ap; - char *buf; - - va_start(ap,fmt); - buf = jim_vasprintf(fmt, ap); - va_end(ap); - if (buf) { - Jim_SetResultString(interp, buf, -1); - jim_vasprintf_done(buf); - } - return JIM_OK; -} - - -void -Jim_SetResult_NvpUnknown(Jim_Interp *interp, - Jim_Obj *param_name, - Jim_Obj *param_value, - const Jim_Nvp *nvp) -{ - if (param_name) { - Jim_SetResult_sprintf(interp, - "%s: Unknown: %s, try one of: ", - Jim_GetString(param_name, NULL), - Jim_GetString(param_value, NULL)); - } else { - Jim_SetResult_sprintf(interp, - "Unknown param: %s, try one of: ", - Jim_GetString(param_value, NULL)); - } - while (nvp->name) { - const char *a; - const char *b; - - if ((nvp + 1)->name) { - a = nvp->name; - b = ", "; - } else { - a = "or "; - b = nvp->name; - } - Jim_AppendStrings(interp, - Jim_GetResult(interp), - a, b, NULL); - nvp++; - } -} - - -static Jim_Obj *debug_string_obj; - -const char * -Jim_Debug_ArgvString(Jim_Interp *interp, int argc, Jim_Obj *const *argv) -{ - int x; - - if (debug_string_obj) { - Jim_FreeObj(interp, debug_string_obj); - } - - debug_string_obj = Jim_NewEmptyStringObj(interp); - for (x = 0 ; x < argc ; x++) { - Jim_AppendStrings(interp, - debug_string_obj, - Jim_GetString(argv[x], NULL), - " ", - NULL); - } - - return Jim_GetString(debug_string_obj, NULL); -} |