more minor tweaking to context link code, +comment

diff --git a/includes/Parser.php b/includes/Parser.php
index ccb72b3..e26bcff 100644 (file)
--- a/includes/Parser.php
+++ b/includes/Parser.php
@@ -3581,7 +3581,7 @@ class Parser
                $tc = "[$wgLegalTitleChars]";
 
                $namespacechar = '[ _0-9A-Za-z\x80-\xff]'; # Namespaces can use non-ascii!
-               $conpat = "/^{$tc}+? \\(({$tc}+)\\)$/";
+               $conpat = "/^{$tc}+?( \\({$tc}+\\)|)$/";
 
                $p1 = "/\[\[(:?$namespacechar+:|:|)({$tc}+?)( \\({$tc}+\\)|)\\|]]/";    # [[ns:page (context)|]]
                $p2 = "/\[\[\\|({$tc}+)]]/";                                            # [[|page]]
@@ -3590,8 +3590,9 @@ class Parser
 
                $t = $this->mTitle->getText();
                if ( preg_match( $conpat, $t, $m ) && '' != $m[1] ) {
-                       $text = preg_replace( $p2, "[[\\1 ({$m[1]})|\\1]]", $text );
+                       $text = preg_replace( $p2, "[[\\1{$m[1]}|\\1]]", $text );
                } else {
+                       # if $m[1] is empty, don't bother duplicating the title
                        $text = preg_replace( $p2, '[[\\1]]', $text );
                }