set DP_REGEX_MATCH_1 .. DP_REGEX_MATCH_N to preserve captures into arrays

src/include/switch_channel.h

@@ -271,6 +271,8 @@ SWITCH_DECLARE(const char *) switch_channel_get_variable_partner(switch_channel_
 SWITCH_DECLARE(const char *) switch_channel_get_hold_music(switch_channel_t *channel);
 SWITCH_DECLARE(const char *) switch_channel_get_hold_music_partner(switch_channel_t *channel);
 
+SWITCH_DECLARE(uint32_t) switch_channel_del_variable_prefix(switch_channel_t *channel, const char *prefix);
+
 #define switch_channel_set_variable(_channel, _var, _val) switch_channel_set_variable_var_check(_channel, _var, _val, SWITCH_TRUE)
 #define switch_channel_set_variable_partner(_channel, _var, _val) switch_channel_set_variable_partner_var_check(_channel, _var, _val, SWITCH_TRUE)
 

src/mod/dialplans/mod_dialplan_xml/mod_dialplan_xml.c

@@ -149,6 +149,8 @@ static int parse_exten(switch_core_session_t *session, switch_caller_profile_t *
 			int fail = 0;
 			int total = 0;
 
+			switch_channel_del_variable_prefix(channel, "DP_REGEX_MATCH");
+
 			for (xregex = switch_xml_child(xcond, "regex"); xregex; xregex = xregex->next) {
 				time_match = switch_xml_std_datetime_check(xregex);
 
@@ -219,6 +221,11 @@ static int parse_exten(switch_core_session_t *session, switch_caller_profile_t *
 				}
 				
 				if (field && strchr(expression, '(')) {
+					char var[256];
+					switch_snprintf(var, sizeof(var), "DP_REGEX_MATCH_%d", total);
+
+					switch_channel_set_variable(channel, var, NULL);
+					switch_capture_regex(re, proceed, field_data, ovector, var, switch_regex_set_var_callback, session);
 					
 					switch_safe_free(save_expression);
 					switch_safe_free(save_field_data);

src/switch_channel.c

@@ -1127,6 +1127,28 @@ SWITCH_DECLARE(switch_status_t) switch_channel_export_variable_printf(switch_cha
 	return status;
 }
 
+
+SWITCH_DECLARE(uint32_t) switch_channel_del_variable_prefix(switch_channel_t *channel, const char *prefix)
+{
+	switch_event_t *event;
+	switch_event_header_t *hp;
+	uint32_t r = 0;
+
+	switch_channel_get_variables(channel, &event);
+
+	if (event) {
+		for (hp = event->headers; hp; hp = hp->next) {
+			if (zstr(prefix) || !strncasecmp(hp->name, prefix, strlen(prefix))) {
+				switch_channel_set_variable(channel, hp->name, NULL);
+			}
+		}
+	}
+
+	switch_event_destroy(&event);
+
+	return r;
+}
+
 SWITCH_DECLARE(switch_status_t) switch_channel_set_variable_var_check(switch_channel_t *channel,
 																	  const char *varname, const char *value, switch_bool_t var_check)
 {