diff options
Diffstat (limited to 'src/jim.c')
| -rw-r--r-- | src/jim.c | 11829 |
1 files changed, 11829 insertions, 0 deletions
diff --git a/src/jim.c b/src/jim.c new file mode 100644 index 00000000..9d611211 --- /dev/null +++ b/src/jim.c @@ -0,0 +1,11829 @@ +/* Jim - A small embeddable Tcl interpreter
+ * Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
+ * Copyright 2005 Clemens Hintze <c.hintze@gmx.net>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * A copy of the license is also included in the source distribution
+ * of Jim, as a TXT file name called LICENSE.
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define __JIM_CORE__
+#define JIM_OPTIMIZATION /* comment to avoid optimizations and reduce size */
+
+#ifdef __ECOS
+#include <pkgconf/jimtcl.h>
+#endif
+#ifndef JIM_ANSIC
+#define JIM_DYNLIB /* Dynamic library support for UNIX and WIN32 */
+#endif /* JIM_ANSIC */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <limits.h>
+#include <assert.h>
+#include <errno.h>
+#include <time.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
+#define STRICT
+#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 JimVariablesHashTableType;
+
+/* -----------------------------------------------------------------------------
+ * Utility functions
+ * ---------------------------------------------------------------------------*/
+
+/*
+ * 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
+#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)
+{
+ int i;
+
+ if (!l1 || !l2 || l1 > l2) return -1;
+ if (index < 0) index = 0;
+ s2 += index;
+ for (i = index; 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
+ *widePtr = JimStrtoll(str, &endptr, base);
+#else
+ *widePtr = strtol(str, &endptr, base);
+#endif
+ if (str[0] == '\0')
+ 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')
+ 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')
+ 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;
+ FILE *fp = interp ? interp->stderr_ : stderr;
+
+ va_start(ap, fmt);
+ fprintf(fp, JIM_NL "JIM INTERPRETER PANIC: ");
+ vfprintf(fp, fmt, ap);
+ fprintf(fp, 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
+ 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;
+ Jim_HashEntry *entry;
+
+ /* Get the index of the new element, or -1 if
+ * the element already exists. */
+ if ((index = JimInsertHashEntry(ht, key)) == -1)
+ return JIM_ERR;
+
+ /* Allocates the memory and stores key */
+ entry = Jim_Alloc(sizeof(*entry));
+ entry->next = ht->table[index];
+ ht->table[index] = 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) {
+ stop = 1;
+ if (pc->len == 0)
+ continue;
+ }
+ else if (*pc->p == '\n')
+ pc->linenr++;
+ pc->p++; pc->len--;
+ }
+ if (pc->len == 0)
+ pc->tend = pc->p-1;
+ else
+ pc->tend = pc->p-2;
+ } else {
+ 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_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)
+{
+ if (index < 0)
+ return len + index;
+ return index;
+}
+
+/* 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 = Jim_Alloc(strObjPtr->length+1);
+ int i;
+
+ memcpy(buf, strObjPtr->bytes, strObjPtr->length+1);
+ for (i = 0; i < strObjPtr->length; i++)
+ buf[i] = tolower(buf[i]);
+ return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length);
+}
+
+static Jim_Obj *JimStringToUpper(Jim_Interp *interp, Jim_Obj *strObjPtr)
+{
+ char *buf = Jim_Alloc(strObjPtr->length+1);
+ int i;
+
+ memcpy(buf, strObjPtr->bytes, strObjPtr->length+1);
+ for (i = 0; i < strObjPtr->length; i++)
+ buf[i] = toupper(buf[i]);
+ return Jim_NewStringObjNoAlloc(interp, buf, strObjPtr->length);
+}
+
+/* This is the core of the [format] command.
+ * TODO: Export it, make it real... for now only %s and %%
+ * specifiers supported. */
+Jim_Obj *Jim_FormatString(Jim_Interp *interp, Jim_Obj *fmtObjPtr,
+ int objc, Jim_Obj *const *objv)
+{
+ const char *fmt;
+ int fmtLen;
+ Jim_Obj *resObjPtr;
+
+ fmt = Jim_GetString(fmtObjPtr, &fmtLen);
+ resObjPtr = Jim_NewStringObj(interp, "", 0);
+ while (fmtLen) {
+ const char *p = fmt;
+ char spec[2], c;
+ jim_wide wideValue;
+
+ while (*fmt != '%' && fmtLen) {
+ fmt++; fmtLen--;
+ }
+ Jim_AppendString(interp, resObjPtr, p, fmt-p);
+ if (fmtLen == 0)
+ break;
+ fmt++; fmtLen--; /* skip '%' */
+ if (*fmt != '%') {
+ if (objc == 0) {
+ Jim_FreeNewObj(interp, resObjPtr);
+ Jim_SetResultString(interp,
+ "not enough arguments for all format specifiers", -1);
+ return NULL;
+ } else {
+ objc--;
+ }
+ }
+ switch(*fmt) {
+ case 's':
+ Jim_AppendObj(interp, resObjPtr, objv[0]);
+ objv++;
+ break;
+ case 'c':
+ if (Jim_GetWide(interp, objv[0], &wideValue) == JIM_ERR) {
+ Jim_FreeNewObj(interp, resObjPtr);
+ return NULL;
+ }
+ c = (char) wideValue;
+ Jim_AppendString(interp, resObjPtr, &c, 1);
+ break;
+ case 'd':
+ if (Jim_GetWide(interp, objv[0], &wideValue) == JIM_ERR) {
+ Jim_FreeNewObj(interp, resObjPtr);
+ return NULL;
+ }
+ Jim_AppendObj(interp, resObjPtr, objv[0]);
+ break;
+ case '%':
+ Jim_AppendString(interp, resObjPtr, "%" , 1);
+ 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;
+ }
+ fmt++;
+ fmtLen--;
+ }
+ return resObjPtr;
+}
+
+/* -----------------------------------------------------------------------------
+ * 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 **tablePtr, int *indexPtr, const char *name, int flags)
+{
+ const char **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;
+}
+
+/* -----------------------------------------------------------------------------
+ * 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;
+
+ 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;
+ int len, type, linenr;
+
+ JimParseScript(&parser);
+ token = JimParserGetToken(&parser, &len, &type, &linenr);
+ ScriptObjAddToken(interp, script, token, 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));
+ cmdPtr->cmdProc = cmdProc;
+ cmdPtr->privData = privData;
+ cmdPtr->delProc = delProc;
+ 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);
+ }
+ 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, &JimVariablesHashTableType,
+ interp);
+ for (i = 0; i < len; i++) {
+ Jim_Obj *objPtr, *initObjPtr, *nameObjPtr;
+ 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 */
+};
+
+/* -----------------------------------------------------------------------------
+ * 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;
+ /* 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 */
+ 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
+ fprintf(interp->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
+ fprintf(interp->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
+ fprintf(interp->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->stdin_ = stdin;
+ i->stdout_ = stdout;
+ i->stderr_ = stderr;
+
+ /* 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);
+ 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) {
+ Jim_Obj *objPtr = i->liveList;
+
+ fprintf(i->stdout_,JIM_NL "-------------------------------------" JIM_NL);
+ fprintf(i->stdout_,"Objects still in the free list:" JIM_NL);
+ while(objPtr) {
+ const char *type = objPtr->typePtr ?
+ objPtr->typePtr->name : "";
+ fprintf(i->stdout_,"%p \"%-10s\": '%.20s' (refCount: %d)" JIM_NL,
+ objPtr, type,
+ objPtr->bytes ? objPtr->bytes
+ : "(null)", objPtr->refCount);
+ if (objPtr->typePtr == &sourceObjType) {
+ fprintf(i->stdout_, "FILE %s LINE %d" JIM_NL,
+ objPtr->internalRep.sourceValue.fileName,
+ objPtr->internalRep.sourceValue.lineNumber);
+ }
+ objPtr = objPtr->nextObjPtr;
+ }
+ fprintf(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)
+{
+ 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;
+}
+
+FILE *Jim_SetStdin(Jim_Interp *interp, FILE *fp)
+{
+ if (fp != NULL) interp->stdin_ = fp;
+ return interp->stdin_;
+}
+
+FILE *Jim_SetStdout(Jim_Interp *interp, FILE *fp)
+{
+ if (fp != NULL) interp->stdout_ = fp;
+ return interp->stdout_;
+}
+
+FILE *Jim_SetStderr(Jim_Interp *interp, FILE *fp)
+{
+ if (fp != NULL) interp->stderr_ = fp;
+ return interp->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 {
+ long refCount = (long) he->val;
+
+ refCount++;
+ he->val = (void*) refCount;
+ return he->key;
+ }
+}
+
+void Jim_ReleaseSharedString(Jim_Interp *interp, const char *str)
+{
+ long 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 = (long) 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;
+ const char *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, 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;
+ memmove(point+elemc, point, (currentLen-index) * 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,
+ 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 >= 0 && index > listPtr->internalRep.listValue.len)
+ index = listPtr->internalRep.listValue.len;
+ else if (index < 0 )
+ index = 0;
+ Jim_InvalidateStringRep(listPtr);
+ ListInsertElements(listPtr, index, objc, objVec);
+}
+
+int Jim_ListIndex(Jim_Interp *interp, Jim_Obj *listPtr, int index,
+ Jim_Obj **objPtrPtr, int flags)
+{
+ if (listPtr->typePtr != &listObjType)
+ SetListFromAny(interp, listPtr);
+ if ((index >= 0 && index >= listPtr->internalRep.listValue.len) ||
+ (index < 0 && (-index-1) >= listPtr->internalRep.listValue.len)) {
+ if (flags & JIM_ERRMSG) {
+ Jim_SetResultString(interp,
+ "list index out of range", -1);
+ }
+ return JIM_ERR;
+ }
+ if (index < 0)
+ index = listPtr->internalRep.listValue.len+index;
+ *objPtrPtr = listPtr->internalRep.listValue.ele[index];
+ return JIM_OK;
+}
+
+static int ListSetIndex(Jim_Interp *interp, Jim_Obj *listPtr, int index,
+ Jim_Obj *newObjPtr, int flags)
+{
+ if (listPtr->typePtr != &listObjType)
+ SetListFromAny(interp, listPtr);
+ if ((index >= 0 && index >= listPtr->internalRep.listValue.len) ||
+ (index < 0 && (-index-1) >= listPtr->internalRep.listValue.len)) {
+ if (flags & JIM_ERRMSG) {
+ Jim_SetResultString(interp,
+ "list index out of range", -1);
+ }
+ return JIM_ERR;
+ }
+ if (index < 0)
+ index = listPtr->internalRep.listValue.len+index;
+ Jim_DecrRefCount(interp, listPtr->internalRep.listValue.ele[index]);
+ listPtr->internalRep.listValue.ele[index] = 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;
+
+ 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) != JIM_OK)
+ goto err;
+ if (Jim_ListIndex(interp, listObjPtr, index, &objPtr,
+ JIM_ERRMSG) != JIM_OK) {
+ goto err;
+ }
+ if (Jim_IsShared(objPtr)) {
+ objPtr = Jim_DuplicateObj(interp, objPtr);
+ ListSetIndex(interp, listObjPtr, index, objPtr, JIM_NONE);
+ }
+ Jim_InvalidateStringRep(listObjPtr);
+ }
+ if (Jim_GetIndex(interp, indexv[indexc-1], &index) != JIM_OK)
+ goto err;
+ if (ListSetIndex(interp, objPtr, index, 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;
+ const char *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;
+ 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, 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 = 0;
+ end = 1;
+ } else {
+ if (!strncmp(str, "end-", 4)) {
+ str += 4;
+ end = 1;
+ }
+ if (Jim_StringToIndex(str, &index) != 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 < 0)
+ index = INT_MAX;
+ else
+ index = -(index+1);
+ } else if (!end && index < 0)
+ index = -INT_MAX;
+ /* Free the old internal repr and set the new one. */
+ Jim_FreeIntRep(interp, objPtr);
+ objPtr->typePtr = &indexObjType;
+ objPtr->internalRep.indexValue = index;
+ 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 = -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 = i;
+ break;
+ }
+ }
+ if (index == -1) return;
+ /* Search for the end of the first operator */
+ leftindex = index-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[i]);
+ 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 += 2;
+ offset = (index-leftindex)-1;
+ Jim_DecrRefCount(interp, expr->obj[index]);
+ if (expr->opcode[index] == JIM_EXPROP_LOGICAND) {
+ expr->opcode[leftindex+1] = JIM_EXPROP_LOGICAND_LEFT;
+ expr->opcode[index] = JIM_EXPROP_LOGICAND_RIGHT;
+ expr->obj[leftindex+1] = Jim_NewStringObj(interp, "&L", -1);
+ expr->obj[index] = Jim_NewStringObj(interp, "&R", -1);
+ } else {
+ expr->opcode[leftindex+1] = JIM_EXPROP_LOGICOR_LEFT;
+ expr->opcode[index] = JIM_EXPROP_LOGICOR_RIGHT;
+ expr->obj[leftindex+1] = Jim_NewStringObj(interp, "|L", -1);
+ expr->obj[index] = Jim_NewStringObj(interp, "|R", -1);
+ }
+ expr->opcode[leftindex] = JIM_EXPROP_NUMBER;
+ expr->obj[leftindex] = Jim_NewIntObj(interp, offset);
+ Jim_IncrRefCount(expr->obj[index]);
+ 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) {
+ 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;
+ break;
+ 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;
+ 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];
+ sA = Jim_GetString(A, &Alen);
+ sB = Jim_GetString(B, &Blen);
+ switch(expr->opcode[i]) {
+ 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;
+ for (i=sdescr[0]; i <= sdescr[2]; ++i)
+ JimSetBit(charset, (char)i);
+ 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, 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];
+ 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': {
+ 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
+ *(jim_wide*)value = JimStrtoll(tok, &endp, base);
+#else
+ *(jim_wide*)value = strtol(tok, &endp, base);
+#endif
+ else
+ if (descr->type == 'u')
+ *(long*)value = strtoul(tok, &endp, base);
+ else
+ *(long*)value = strtol(tok, &endp, base);
+ /* 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, *(jim_wide*)value);
+ else
+ *valObjPtr = Jim_NewIntObj(interp, *(long*)value);
+ /* 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*)value = strtod(tok, &endp);
+ if (endp != tok) {
+ /* There was some number sucessfully scanned! */
+ *valObjPtr = Jim_NewDoubleObj(interp, *(double*)value);
+ /* 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;
+ 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()
+{
+ 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, NULL);
+ prefixlen = strlen(prefix);
+ if (prefixlen+strlen(pathName)+1 >= JIM_PATH_LEN)
+ continue;
+ if (prefixlen && prefix[prefixlen-1] == '/')
+ sprintf(buf, "%s%s", prefix, pathName);
+ else
+ sprintf(buf, "%s/%s", prefix, pathName);
+ printf("opening '%s'\n", buf);
+ fp = fopen(buf, "r");
+ if (fp == NULL)
+ continue;
+ fclose(fp);
+ handle = dlopen(buf, RTLD_LAZY);
+ printf("got handle %p\n", handle);
+ }
+ 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;
+
+ 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) {
+ Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
+ Jim_AppendStrings(interp, Jim_GetResult(interp),
+ "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_SetResult(interp, Jim_NewEmptyStringObj(interp));
+ 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 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 */
+ retCode = Jim_EvalObjVector(interp, argc+1, v);
+ /* 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);
+ } 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);
+ } 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_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;
+
+ /* 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 */
+ for (i = 0; i < cmd->arityMin-1; i++) {
+ Jim_Obj *objPtr;
+
+ Jim_ListIndex(interp, cmd->argListObjPtr, i, &objPtr, JIM_NONE);
+ Jim_SetVariable(interp, objPtr, argv[i+1]);
+ }
+ if (cmd->arityMax == -1) {
+ Jim_Obj *listObjPtr, *objPtr;
+
+ listObjPtr = Jim_NewListObj(interp, argv+cmd->arityMin,
+ argc-cmd->arityMin);
+ Jim_ListIndex(interp, cmd->argListObjPtr, i, &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(Jim_Interp *interp, const char *script)
+{
+ Jim_Obj *scriptObjPtr = Jim_NewStringObj(interp, script, -1);
+ int retval;
+
+ Jim_IncrRefCount(scriptObjPtr);
+ retval = Jim_EvalObj(interp, scriptObjPtr);
+ Jim_DecrRefCount(interp, scriptObjPtr);
+ return retval;
+}
+
+/* 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. */
+ fprintf(interp->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) {
+ Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
+ Jim_AppendStrings(interp, Jim_GetResult(interp),
+ "Error loading script \"", filename, "\": ",
+ strerror(errno), NULL);
+ return JIM_ERR;
+ }
+ buflen = 1024;
+ maxlen = totread = 0;
+ while (1) {
+ if (maxlen < totread+buflen+1) {
+ maxlen = totread+buflen+1;
+ prg = Jim_Realloc(prg, maxlen);
+ }
+ if ((nread = fread(prg+totread, 1, buflen, fp)) == 0) break;
+ totread += nread;
+ }
+ prg[totread] = '\0';
+ 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_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(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(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);
+}
+
+/* -----------------------------------------------------------------------------
+ * 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;
+
+ 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;
+
+ 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);
+ fwrite(str, 1, len, interp->stdout_);
+ if (!nonewline) fprintf(interp->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;
+
+ 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, 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);
+ if (varBObjPtr)
+ 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, 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) 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;
+
+ 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) != JIM_OK) {
+ Jim_DecrRefCount(interp, listObjPtr);
+ return JIM_ERR;
+ }
+ if (Jim_ListIndex(interp, listObjPtr, index, &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, 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) != JIM_OK)
+ goto err;
+ Jim_ListLength(interp, listPtr, &len);
+ if (index >= len)
+ index = len;
+ else if (index < 0)
+ index = len + index + 1;
+ Jim_ListInsertElements(interp, listPtr, index, 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 *lastArgPtr;
+
+ Jim_ListIndex(interp, argv[2], argListLen-1, &lastArgPtr, JIM_NONE);
+ str = Jim_GetString(lastArgPtr, &len);
+ if (len == 4 && memcmp(str, "args", 4) == 0) {
+ arityMin--;
+ arityMax = -1;
+ }
+ }
+ 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;
+
+ 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, len;
+ const char *str;
+
+ if (argc != 4) {
+ Jim_WrongNumArgs(interp, 2, argv, "string index");
+ return JIM_ERR;
+ }
+ if (Jim_GetIndex(interp, argv[3], &index) != JIM_OK)
+ return JIM_ERR;
+ str = Jim_GetString(argv[2], &len);
+ if (index != INT_MIN && index != INT_MAX)
+ index = JimRelToAbsIndex(len, index);
+ if (index < 0 || index >= len) {
+ Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
+ return JIM_OK;
+ } else {
+ Jim_SetResult(interp, Jim_NewStringObj(interp, str+index, 1));
+ return JIM_OK;
+ }
+ } else if (option == OPT_FIRST) {
+ int index = 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) != JIM_OK)
+ return JIM_ERR;
+ index = JimRelToAbsIndex(l2, index);
+ }
+ Jim_SetResult(interp, Jim_NewIntObj(interp,
+ JimStringFirst(s1, l1, s2, l2, index)));
+ 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", NULL
+ };
+ enum {INFO_BODY, INFO_COMMANDS, INFO_EXISTS, INFO_GLOBALS, INFO_LEVEL,
+ INFO_LOCALS, INFO_VARS, INFO_VERSION, INFO_COMPLETE, INFO_ARGS};
+
+ 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)));
+ }
+ 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;
+
+ 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 count = FormatGetCnvCount(argv[2]);
+ if (maxPos > argc-3) {
+ Jim_SetResultString(interp, "\"%n$\" argument index out of range", -1);
+ return JIM_ERR;
+ } else if (count != 0 && count < argc-3) {
+ Jim_SetResultString(interp, "variable is not assigned by any "
+ "conversion specifiers", -1);
+ return JIM_ERR;
+ } else if (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_Length(outVec[i]) > 0) {
+ ++count;
+ if (Jim_SetVariable(interp, argv[3+i], outVec[i]) != JIM_OK)
+ goto err;
+ }
+ }
+ Jim_FreeNewObj(interp, listPtr);
+ Jim_SetResult(interp, Jim_NewIntObj(interp, count));
+ } else {
+ if (listPtr == (Jim_Obj*)EOF) {
+ Jim_SetResult(interp, Jim_NewListObj(interp, 0, 0));
+ return JIM_OK;
+ }
+ Jim_SetResult(interp, listPtr);
+ }
+ return JIM_OK;
+err:
+ Jim_FreeNewObj(interp, listPtr);
+ return JIM_ERR;
+}
+
+/* [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 != 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_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, 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;
+ 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;
+
+ fprintf(interp->stderr_, "Runtime error, file \"%s\", line %d:" JIM_NL,
+ interp->errorFileName, interp->errorLine);
+ fprintf(interp->stderr_, " %s" JIM_NL,
+ Jim_GetString(interp->result, NULL));
+ Jim_ListLength(interp, interp->stackTrace, &len);
+ for (i = 0; i < len; i+= 3) {
+ Jim_Obj *objPtr;
+ 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);
+ fprintf(interp->stderr_,
+ "In procedure '%s' called at file \"%s\", line %s" JIM_NL,
+ proc, file, line);
+ }
+}
+
+int Jim_InteractivePrompt(Jim_Interp *interp)
+{
+ int retcode = JIM_OK;
+ Jim_Obj *scriptObjPtr;
+
+ fprintf(interp->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)
+ fprintf(interp->stdout_, "[%s] . ", retcodestr[retcode]);
+ else
+ fprintf(interp->stdout_, "[%d] . ", retcode);
+ } else
+ fprintf(interp->stdout_, ". ");
+ fflush(interp->stdout_);
+ scriptObjPtr = Jim_NewStringObj(interp, "", 0);
+ Jim_IncrRefCount(scriptObjPtr);
+ while(1) {
+ const char *str;
+ char state;
+ int len;
+
+ if (fgets(buf, 1024, interp->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;
+ fprintf(interp->stdout_, "%c> ", state);
+ fflush(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) {
+ fwrite(result, 1, reslen, interp->stdout_);
+ fprintf(interp->stdout_, JIM_NL);
+ }
+ }
+ }
+out:
+ return 0;
+}
|