Inheritance diagram for Diff:

Collaboration diagram for Diff:

Public Member Functions
	__construct ($from_lines, $to_lines)
	Constructor. More...

	reverse ()
	Compute reversed Diff. More...

	isEmpty ()
	Check for empty diff. More...

	lcs ()
	Compute the length of the Longest Common Subsequence (LCS). More...

	orig ()
	Get the original set of lines. More...

	closing ()
	Get the closing set of lines. More...

	_check ($from_lines, $to_lines)
	Check a Diff for validity. More...

Data Fields
	$edits

Detailed Description

Definition at line 1286 of file class.WordLevelDiff.php.

Constructor & Destructor Documentation

◆ __construct()

Diff::__construct	(	$from_lines,
		$to_lines
	)

Constructor.

Computes diff between sequences of strings.

Parameters

$from_lines	array An array of strings. (Typically these are lines from a file.)
$to_lines	array An array of strings.

Definition at line 1298 of file class.WordLevelDiff.php.

 {
     public $edits;
 

Member Function Documentation

◆ _check()

Diff::_check	(	$from_lines,
		$to_lines
	)

Check a Diff for validity.

This is here only for debugging purposes.

Definition at line 1403 of file class.WordLevelDiff.php.

                                         {
             if ($edit->closing) {
                 array_splice($lines, sizeof($lines), 0, $edit->closing);
             }
         }
         return $lines;
     }
 
     public function _check($from_lines, $to_lines)
     {
         $fname = 'Diff::_check';
         //wfProfileIn( $fname );
         if (serialize($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);
         }

◆ closing()

Diff::closing ( )

Get the closing set of lines.

This reconstructs the $to_lines parameter passed to the constructor.

Returns: array The sequence of strings.

Definition at line 1386 of file class.WordLevelDiff.php.

1401 {

◆ isEmpty()

Diff::isEmpty ( )

Check for empty diff.

Returns: bool True iff two sequences were identical.

Definition at line 1330 of file class.WordLevelDiff.php.

     {
         $rev = $this;
         $rev->edits = array();
         foreach ($this->edits as $edit) {
             $rev->edits[] = $edit->reverse();
         }
         return $rev;
     }
 

◆ lcs()

Diff::lcs ( )

Compute the length of the Longest Common Subsequence (LCS).

This is mostly for diagnostic purposed.

Returns: int The length of the LCS.

Definition at line 1347 of file class.WordLevelDiff.php.

                                        {
                 return false;
             }
         }
         return true;
     }
 

◆ orig()

Diff::orig ( )

Get the original set of lines.

This reconstructs the $from_lines parameter passed to the constructor.

Returns: array The original sequence of strings.

Definition at line 1366 of file class.WordLevelDiff.php.

1381 {

◆ reverse()

Diff::reverse ( )

Compute reversed Diff.

SYNOPSIS:

$diff = new Diff($lines1, $lines2); $rev = $diff->reverse();

Returns: object A Diff object representing the inverse of the original diff.

Definition at line 1315 of file class.WordLevelDiff.php.

1330 {

Field Documentation

◆ $edits

Diff::$edits

Definition at line 1288 of file class.WordLevelDiff.php.

The documentation for this class was generated from the following file:

Services/COPage/mediawikidiff/class.WordLevelDiff.php

Public Member Functions

Data Fields