Clarify info action's "search engine status"

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

diff --git a/includes/parser/Preprocessor_DOM.php b/includes/parser/Preprocessor_DOM.php
index 809e7f7..c9e16b3 100644 (file)
--- a/includes/parser/Preprocessor_DOM.php
+++ b/includes/parser/Preprocessor_DOM.php
@@ -361,9 +361,11 @@ class Preprocessor_DOM implements Preprocessor {
                                }
                                // Handle comments
                                if ( isset( $matches[2] ) && $matches[2] == '!--' ) {
-                                       // To avoid leaving blank lines, when a comment is both preceded
-                                       // and followed by a newline (ignoring spaces), trim leading and
-                                       // trailing spaces and one of the newlines.
+
+                                       // To avoid leaving blank lines, when a sequence of
+                                       // space-separated comments is both preceded and followed by
+                                       // a newline (ignoring spaces), then
+                                       // trim leading and trailing spaces and the trailing newline.
 
                                        // Find the end
                                        $endPos = strpos( $text, '-->', $i + 4 );
@@ -375,9 +377,24 @@ class Preprocessor_DOM implements Preprocessor {
                                        } else {
                                                // Search backwards for leading whitespace
                                                $wsStart = $i ? ( $i - strspn( $revText, ' ', $lengthText - $i ) ) : 0;
+
                                                // Search forwards for trailing whitespace
                                                // $wsEnd will be the position of the last space (or the '>' if there's none)
                                                $wsEnd = $endPos + 2 + strspn( $text, ' ', $endPos + 3 );
+
+                                               // Keep looking forward as long as we're finding more
+                                               // comments.
+                                               $comments = array( array( $wsStart, $wsEnd ) );
+                                               while ( substr( $text, $wsEnd + 1, 4 ) == '<!--' ) {
+                                                       $c = strpos( $text, '-->', $wsEnd + 4 );
+                                                       if ( $c === false ) {
+                                                               break;
+                                                       }
+                                                       $c = $c + 2 + strspn( $text, ' ', $c + 3 );
+                                                       $comments[] = array( $wsEnd + 1, $c );
+                                                       $wsEnd = $c;
+                                               }
+
                                                // Eat the line if possible
                                                // TODO: This could theoretically be done if $wsStart == 0, i.e. for comments at
                                                // the overall start. That's not how Sanitizer::removeHTMLcomments() did it, but
@@ -385,14 +402,24 @@ class Preprocessor_DOM implements Preprocessor {
                                                if ( $wsStart > 0 && substr( $text, $wsStart - 1, 1 ) == "\n"
                                                        && substr( $text, $wsEnd + 1, 1 ) == "\n" )
                                                {
-                                                       $startPos = $wsStart;
-                                                       $endPos = $wsEnd + 1;
                                                        // Remove leading whitespace from the end of the accumulator
                                                        // Sanity check first though
                                                        $wsLength = $i - $wsStart;
                                                        if ( $wsLength > 0 && substr( $accum, -$wsLength ) === str_repeat( ' ', $wsLength ) ) {
                                                                $accum = substr( $accum, 0, -$wsLength );
                                                        }
+
+                                                       // Dump all but the last comment to the accumulator
+                                                       foreach ( $comments as $j => $com ) {
+                                                               $startPos = $com[0];
+                                                               $endPos = $com[1] + 1;
+                                                               if ( $j == ( count( $comments ) - 1) ) {
+                                                                       break;
+                                                               }
+                                                               $inner = substr( $text, $startPos, $endPos - $startPos);
+                                                               $accum .= '<comment>' . htmlspecialchars( $inner ) . '</comment>';
+                                                       }
+
                                                        // Do a line-start run next time to look for headings after the comment
                                                        $fakeLineStart = true;
                                                } else {