From 7e4adfe1c53aa18d4feba1e58ceb5c5aaa470775 Mon Sep 17 00:00:00 2001
From: Zachary T Welch <zw@superlucidity.net>
Date: Wed, 18 Nov 2009 06:58:27 -0800
Subject: add handle_command_parse_bool command helper

Rewrite arm11_handle_bool to provide a generic on/off command helper.

Refactors COMMAND_PARSE_BOOL to use new command_parse_bool helper,
which gets reused by the new command_parse_bool_any helper.
This later helper is called by the new command helper function to
accepts any on/off, enable/disable, true/false, yes/no, or 0/1 parameter.
---
 src/helper/command.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 src/helper/command.h | 15 +++++++++------
 2 files changed, 59 insertions(+), 6 deletions(-)

(limited to 'src/helper')

diff --git a/src/helper/command.c b/src/helper/command.c
index 708a8024..5f3fae51 100644
--- a/src/helper/command.c
+++ b/src/helper/command.c
@@ -954,3 +954,53 @@ DEFINE_PARSE_LONG(_int, int, n < INT_MIN, INT_MAX)
 DEFINE_PARSE_LONG(_s32, int32_t, n < INT32_MIN, INT32_MAX)
 DEFINE_PARSE_LONG(_s16, int16_t, n < INT16_MIN, INT16_MAX)
 DEFINE_PARSE_LONG(_s8, int8_t, n < INT8_MIN, INT8_MAX)
+
+int command_parse_bool(const char *in, bool *out,
+		const char *on, const char *off)
+{
+	if (strcasecmp(in, on) == 0)
+		*out = true;
+	else if (strcasecmp(in, off) == 0)
+		*out = false;
+	else
+		return ERROR_COMMAND_SYNTAX_ERROR;
+	return  ERROR_OK;
+}
+
+int command_parse_bool_any(const char *in, bool *out)
+{
+	if (command_parse_bool(in, out, "on", "off") == ERROR_OK)
+		return ERROR_OK;
+	if (command_parse_bool(in, out, "enable", "disable") == ERROR_OK)
+		return ERROR_OK;
+	if (command_parse_bool(in, out, "true", "false") == ERROR_OK)
+		return ERROR_OK;
+	if (command_parse_bool(in, out, "yes", "no") == ERROR_OK)
+		return ERROR_OK;
+	if (command_parse_bool(in, out, "1", "0") == ERROR_OK)
+		return ERROR_OK;
+	return ERROR_INVALID_ARGUMENTS;
+}
+
+COMMAND_HELPER(handle_command_parse_bool, bool *out, const char *label)
+{
+	switch (CMD_ARGC) {
+	case 1: {
+		const char *in = CMD_ARGV[0];
+		if (command_parse_bool_any(in, out) != ERROR_OK)
+		{
+			LOG_ERROR("%s: argument '%s' is not valid", CMD_NAME, in);
+			return ERROR_INVALID_ARGUMENTS;
+		}
+		// fall through
+	}
+	case 0:
+		LOG_INFO("%s is %s", label, *out ? "enabled" : "disabled");
+		break;
+	default:
+		return ERROR_INVALID_ARGUMENTS;
+	}
+	return ERROR_OK;
+}
+
+
diff --git a/src/helper/command.h b/src/helper/command.h
index 9f2d9712..06403eff 100644
--- a/src/helper/command.h
+++ b/src/helper/command.h
@@ -271,19 +271,22 @@ DECLARE_PARSE_WRAPPER(_s8, int8_t);
  */
 #define COMMAND_PARSE_BOOL(in, out, on, off) \
 	do { \
-		if (strcmp(in, on) == 0) \
-			out = true; \
-		else if (strcmp(in, off) == 0) \
-			out = false; \
-		else { \
+		bool value; \
+		int retval = command_parse_bool(in, &value, on, off); \
+		if (ERROR_OK != retval) { \
 			command_print(CMD_CTX, stringify(out) \
 				" option value ('%s') is not valid", in); \
 			command_print(CMD_CTX, "  choices are '%s' or '%s'", \
 				on, off); \
-			return ERROR_COMMAND_SYNTAX_ERROR; \
+			return retval; \
 		} \
+		out = value; \
 	} while (0)
 
+int command_parse_bool(const char *in, bool *out,
+		const char *on, const char *off);
+COMMAND_HELPER(handle_command_parse_bool, bool *out, const char *label);
+
 /// parses an on/off command argument
 #define COMMAND_PARSE_ON_OFF(in, out) \
 		COMMAND_PARSE_BOOL(in, out, "on", "off")
-- 
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