http://www.mediawiki.org/wiki/Special:Code/MediaWiki/90610
Revision: 90610
Author: yaron
Date: 2011-06-22 21:38:32 +0000 (Wed, 22 Jun 2011)
Log Message:
-----------
Added display of error message if a PREG_BACKTRACK_LIMIT_ERROR occurs during a
call to preg_match_all()
Modified Paths:
--------------
trunk/extensions/SemanticForms/includes/SF_FormClasses.php
Modified: trunk/extensions/SemanticForms/includes/SF_FormClasses.php
===================================================================
--- trunk/extensions/SemanticForms/includes/SF_FormClasses.php 2011-06-22
21:38:02 UTC (rev 90609)
+++ trunk/extensions/SemanticForms/includes/SF_FormClasses.php 2011-06-22
21:38:32 UTC (rev 90610)
@@ -123,7 +123,7 @@
// First, look for "arraymap" parser function calls
// that map a property onto a list.
- if ( preg_match_all(
'/{{#arraymap:{{{([^|}]*:?[^|}]*)[^\[]*\[\[([^:]*:?[^:]*)::/mis',
$templateText, $matches ) ) {
+ if ( $ret = preg_match_all(
'/{{#arraymap:{{{([^|}]*:?[^|}]*)[^\[]*\[\[([^:]*:?[^:]*)::/mis',
$templateText, $matches ) ) {
foreach ( $matches[1] as $i => $field_name ) {
if ( ! in_array( $field_name,
$fieldNamesArray ) ) {
$propertyName = $matches[2][$i];
@@ -131,6 +131,12 @@
$fieldNamesArray[] =
$field_name;
}
}
+ } elseif ( $ret === false ) {
+ // There was an error in the preg_match_all()
+ // call - let the user know about it.
+ if ( preg_last_error() ==
PREG_BACKTRACK_LIMIT_ERROR ) {
+ print 'Semantic Forms error: backtrace
limit exceeded during parsing! Please increase the value of <a
href="http://www.php.net/manual/en/pcre.configuration.php#ini.pcre.backtrack-limit";>pcre.backtrack-limit</a>
in the PHP settings.';
+ }
}
// Second, look for normal property calls.
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