Modifying the behaviour of the dialplan engine

the 'data' field in action tags may now refer to variables and api functions
to be expanded at runtime.

Syntax:

$varname
${varname}
&func_name(func args)


Exception:
variables that are numeric are still expanded at dialplan compile time based on the regex eg $1 $2 etc

Example:

<extension name="1000">
  <condition field="destination_number" expression="^(1000)$">
    <action appplication="my_route_app" data="$1"/>
    <action appplication="bridge" data="$destination"/>
  </condition>
</extension>

Here the $1 is ecaluated before the call begins setting it to 1000 based on the regex ^(1000)$
$destination is evaluated on the fly in execution once the my_route_app has run and has had a 
chance to set the variable 'destination' to the correct value.



git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@2994 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/dialplans/mod_dialplan_xml/mod_dialplan_xml.c

@@ -174,17 +174,16 @@ static int parse_exten(switch_core_session_t *session, switch_xml_t xexten, swit
 				char *cmd = switch_core_session_strdup(session, field + 1);
 				char *arg;
 				
+				SWITCH_STANDARD_STREAM(stream);
+				
 				if (cmd) {
 					if ((arg = strchr(cmd, ' '))) {
 						*arg++ = '\0';
 					}
-					stream.data = retbuf;
-					stream.end = stream.data;
-					stream.data_size = sizeof(retbuf);
-					stream.write_function = switch_console_stream_write;
 					if (switch_api_execute(cmd, arg, session, &stream) == SWITCH_STATUS_SUCCESS) {
 						field_data = retbuf;
 					}
+					free(stream.data);
 				}
 			} else {
 				field_data = switch_caller_get_field_by_name(caller_profile, field);

src/mod/loggers/mod_console/mod_console.c

@@ -128,7 +128,7 @@ static switch_status_t switch_console_logger(const switch_log_node_t *node, swit
 		} 
 
 		if (!log_hash || (((all_level > - 1) || lookup) && level >= node->level)) {
-			fprintf(handle, node->data);
+			fprintf(handle, "%s", node->data);
 		}
 	} else {
 		fprintf(stderr, "HELP I HAVE NO CONSOLE TO LOG TO!\n");