Optimize default arguments (@ operator) into script rules.

The plan is to deprecate rule form completely, so instead of replace_rule(match:..) write replace_text@(match: ...)

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@987 0fc631ac-6414-0410-93d0-97cfa31319b6

src/script/functions/basic.cpp

@@ -611,9 +611,18 @@ ScriptValueP match_rule(Context& ctx) {
 SCRIPT_FUNCTION(match_rule) {
 	return match_rule(ctx);
 }
-SCRIPT_FUNCTION(match) {
+SCRIPT_FUNCTION_WITH_SIMPLIFY(match) {
 	return match_rule(ctx)->eval(ctx);
 }
+SCRIPT_FUNCTION_SIMPLIFY_CLOSURE(match) {
+	ScriptValueP match = closure.getBinding(SCRIPT_VAR_match);
+	if (match) {
+		intrusive_ptr<ScriptMatchRule> ret(new ScriptMatchRule);
+		from_script(match, ret->regex);
+		return ret;
+	}
+	return ScriptValueP();
+}
 
 // ----------------------------------------------------------------------------- : Rules : sort text