Merge "commonPrint: Remove overqualified selectors & `!important` where applicable"

[lhc/web/wiklou.git] / includes / parser / Parser.php

diff --git a/includes/parser/Parser.php b/includes/parser/Parser.php
index a32acc2..f0898ba 100644 (file)
--- a/includes/parser/Parser.php
+++ b/includes/parser/Parser.php
@@ -3784,9 +3784,28 @@ class Parser {
         * @return string
         */
        public function extensionSubstitution( $params, $frame ) {
+               static $errorStr = '<span class="error">';
+               static $errorLen = 20;
+
                $name = $frame->expand( $params['name'] );
+               if ( substr( $name, 0, $errorLen ) === $errorStr ) {
+                       // Probably expansion depth or node count exceeded. Just punt the
+                       // error up.
+                       return $name;
+               }
+
                $attrText = !isset( $params['attr'] ) ? null : $frame->expand( $params['attr'] );
+               if ( substr( $attrText, 0, $errorLen ) === $errorStr ) {
+                       // See above
+                       return $attrText;
+               }
+
                $content = !isset( $params['inner'] ) ? null : $frame->expand( $params['inner'] );
+               if ( substr( $content, 0, $errorLen ) === $errorStr ) {
+                       // See above
+                       return $content;
+               }
+
                $marker = self::MARKER_PREFIX . "-$name-"
                        . sprintf( '%08X', $this->mMarkerIndex++ ) . self::MARKER_SUFFIX;
 
@@ -3844,6 +3863,10 @@ class Parser {
                                $output = "<$name$attrText/>";
                        } else {
                                $close = is_null( $params['close'] ) ? '' : $frame->expand( $params['close'] );
+                               if ( substr( $close, 0, $errorLen ) === $errorStr ) {
+                                       // See above
+                                       return $close;
+                               }
                                $output = "<$name$attrText>$content$close";
                        }
                }