wtm-bug487-comments.patch
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	• bzimport
	Nov 21 2014, 6:56 PM

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wtm-bug487-comments.patch
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	Index: Parser.php
	===================================================================
	RCS file: /cvsroot/wikipedia/phase3/includes/Parser.php,v
	retrieving revision 1.269
	diff -u -r1.269 Parser.php
	--- Parser.php 15 Sep 2004 05:53:21 -0000 1.269
	+++ Parser.php 16 Sep 2004 03:24:31 -0000
	@@ -1784,7 +1784,7 @@
	$htmlattrs = $this->getHTMLattrs () ;

	# Remove HTML comments
	- $text = preg_replace( '/(\\n <!--.--> \|<!--.?-->)/sU', '', $text );
	+ $text = $this->removeHTMLcomments( $text );

	$bits = explode( '<', $text );
	$text = array_shift( $bits );
	@@ -1863,6 +1863,42 @@
	return $text;
	}

	+ # Remove '<!--', '-->', and everything between.
	+ # 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.
	+ /* private */ function removeHTMLcomments( $text ) {
	+ while (($start = strpos($text, '<!--')) !== false) {
	+ $end = strpos($text, '-->', $start + 4);
	+ if ($end === false) {
	+ # Unterminated comment; bail out
	+ break;
	+ }
	+
	+ $end += 3;
	+
	+ # Trim space and newline if the comment is both
	+ # preceded and followed by a newline
	+ $spaceStart = $start - 1;
	+ $spaceLen = $end - $spaceStart;
	+ while (substr($text, $spaceStart, 1) === ' ') {
	+ $spaceStart--;
	+ $spaceLen++;
	+ }
	+ while (substr($text, $spaceStart + $spaceLen, 1) === ' ')
	+ $spaceLen++;
	+ if (substr($text, $spaceStart, 1) === "\n" and substr($text, $spaceStart + $spaceLen, 1) === "\n") {
	+ # Remove the comment, leading and trailing
	+ # spaces, and leave only one newline.
	+ $text = substr_replace($text, "\n", $spaceStart, $spaceLen + 1);
	+ }
	+ else {
	+ # Remove just the comment.
	+ $text = substr_replace($text, '', $start, $end - $start);
	+ }
	+ }
	+ return $text;
	+ }

	# This function accomplishes several tasks:
	# 1) Auto-number headings if that option is enabled

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