- # Better external diff engine, the 2 may some day be dropped
- # This one does the escaping and segmenting itself
- $text = wikidiff2_do_diff( $otext, $ntext, 2 );
+ $wikidiff2Version = phpversion( 'wikidiff2' );
+ if (
+ $wikidiff2Version !== false &&
+ version_compare( $wikidiff2Version, '0.3.0', '>=' )
+ ) {
+ $text = wikidiff2_do_diff(
+ $otext,
+ $ntext,
+ 2,
+ $this->getConfig()->get( 'WikiDiff2MovedParagraphDetectionCutoff' )
+ );
+ } else {
+ // Don't pass the 4th parameter for compatibility with older versions of wikidiff2
+ $text = wikidiff2_do_diff(
+ $otext,
+ $ntext,
+ 2
+ );
+
+ // Log a warning in case the configuration value is set to not silently ignore it
+ if ( $this->getConfig()->get( 'WikiDiff2MovedParagraphDetectionCutoff' ) > 0 ) {
+ wfLogWarning( '$wgWikiDiff2MovedParagraphDetectionCutoff is set but has no
+ effect since the used version of WikiDiff2 does not support it.' );
+ }
+ }
+