Index: vala/scanner.l
===================================================================
--- vala/scanner.l	(revision 497)
+++ vala/scanner.l	(working copy)
@@ -71,6 +71,9 @@
 
 "//".*				{ uploc; vala_parser_push_comment (parser, g_strdup (yytext + 2), FALSE); }
 
+^#region.*			{ uploc; vala_parser_push_comment (parser, g_strdup_printf(" {{{ %s", (yytext + 7)), FALSE); }
+^#endregion.*			{ uploc; vala_parser_push_comment (parser, g_strdup(" }}} "), FALSE); }
+
 "{"		{ uploc; return OPEN_BRACE; }
 "}"		{ uploc; return CLOSE_BRACE; }
 "("({space}"weak")?{space}{ident}("."{ident})?("<"({ident}".")?{ident}(","({ident}".")?{ident})*">")?("["{space}"]")*{space}")"{space}("("|{ident}|{literal})	{ yyless (1); uploc; return OPEN_CAST_PARENS; }