function __construct( $from_lines, $to_lines ) {
$eng = new DiffEngine;
$this->edits = $eng->diff( $from_lines, $to_lines );
- // $this->check($from_lines, $to_lines);
}
/**
return $lines;
}
-
- /**
- * Check a Diff for validity.
- *
- * This is here only for debugging purposes.
- * @param $from_lines
- * @param $to_lines
- */
- private function check( $from_lines, $to_lines ) {
- wfProfileIn( __METHOD__ );
- if ( serialize( $from_lines ) != serialize( $this->orig() ) ) {
- trigger_error( "Reconstructed original doesn't match", E_USER_ERROR );
- }
- if ( serialize( $to_lines ) != serialize( $this->closing() ) ) {
- trigger_error( "Reconstructed closing doesn't match", E_USER_ERROR );
- }
-
- $rev = $this->reverse();
- if ( serialize( $to_lines ) != serialize( $rev->orig() ) ) {
- trigger_error( "Reversed original doesn't match", E_USER_ERROR );
- }
- if ( serialize( $from_lines ) != serialize( $rev->closing() ) ) {
- trigger_error( "Reversed closing doesn't match", E_USER_ERROR );
- }
-
- $prevtype = 'none';
- foreach ( $this->edits as $edit ) {
- if ( $prevtype == $edit->type ) {
- trigger_error( 'Edit sequence is non-optimal', E_USER_ERROR );
- }
- $prevtype = $edit->type;
- }
-
- $lcs = $this->lcs();
- trigger_error( 'Diff okay: LCS = ' . $lcs, E_USER_NOTICE );
- wfProfileOut( __METHOD__ );
- }
}
/**