provide the correct string to evaluate with the given regex, instead of the

entire string provided as input to the REGEX function..  Also, use the
provided buffer to store the result.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6744 65c4cc65-6c06-0410-ace0-fbb531ad65f3

funcs/func_strings.c

@@ -69,39 +69,43 @@ struct ast_custom_function fieldqty_function = {
 
 static char *builtin_function_regex(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len) 
 {
-	char *ret_true = "1", *ret_false = "0", *ret;
 	char *arg, *earg, *tmp, errstr[256] = "";
 	int errcode;
 	regex_t regexbuf;
 
-	ret = ret_false; /* convince me otherwise */
+	ast_copy_string(buf, "0", len);
+	
 	tmp = ast_strdupa(data);
-	if (tmp) {
-		/* Regex in quotes */
-		arg = strchr(tmp, '"');
-		if (arg) {
-			arg++;
-			earg = strrchr(arg, '"');
-			if (earg) {
-				*earg = '\0';
-			}
-		} else {
-			arg = tmp;
-		}
+	if (!tmp) {
+		ast_log(LOG_ERROR, "Out of memory in %s(%s)\n", cmd, data);
+		return buf;
+	}
 
-		if ((errcode = regcomp(&regexbuf, arg, REG_EXTENDED | REG_NOSUB))) {
-			regerror(errcode, &regexbuf, errstr, sizeof(errstr));
-			ast_log(LOG_WARNING, "Malformed input %s(%s): %s\n", cmd, data, errstr);
-			ret = NULL;
-		} else {
-			ret = regexec(&regexbuf, data, 0, NULL, 0) ? ret_false : ret_true;
+	/* Regex in quotes */
+	arg = strchr(tmp, '"');
+	if (arg) {
+		arg++;
+		earg = strrchr(arg, '"');
+		if (earg) {
+			*earg++ = '\0';
+			/* Skip over any spaces before the data we are checking */
+			while (*earg == ' ')
+				earg++;
 		}
-		regfree(&regexbuf);
 	} else {
-		ast_log(LOG_ERROR, "Out of memory in %s(%s)\n", cmd, data);
+		arg = tmp;
+	}
+
+	if ((errcode = regcomp(&regexbuf, arg, REG_EXTENDED | REG_NOSUB))) {
+		regerror(errcode, &regexbuf, errstr, sizeof(errstr));
+		ast_log(LOG_WARNING, "Malformed input %s(%s): %s\n", cmd, data, errstr);
+	} else {
+		if (!regexec(&regexbuf, earg ? earg : "", 0, NULL, 0))
+			ast_copy_string(buf, "1", len); 
 	}
+	regfree(&regexbuf);
 
-	return ret;
+	return buf;
 }
 
 #ifndef BUILTIN_FUNC