MappedDiff Class Reference

Inheritance diagram for MappedDiff:

Collaboration diagram for MappedDiff:

Public Member Functions
	__construct ( $from_lines, $to_lines, $mapped_from_lines, $mapped_to_lines)
	Constructor. More...
Public Member Functions inherited from Diff
	__construct ($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...

Additional Inherited Members
Data Fields inherited from Diff
	$edits

Detailed Description

Definition at line 1456 of file class.WordLevelDiff.php.

Constructor & Destructor Documentation

__construct()

MappedDiff::__construct	(		$from_lines,
			$to_lines,
			$mapped_from_lines,
			$mapped_to_lines
	)

Constructor.

Computes diff between sequences of strings.

This can be used to compute things like case-insensitve diffs, or diffs which ignore changes in white-space.

Parameters

$from_lines	array An array of strings. (Typically these are lines from a file.)
$to_lines	array An array of strings.
$mapped_from_lines	array This array should have the same size number of elements as $from_lines. The elements in $mapped_from_lines and $mapped_to_lines are what is actually compared when computing the diff.
$mapped_to_lines	array This array should have the same number of elements as $to_lines.

Definition at line 1481 of file class.WordLevelDiff.php.

      {
        $fname = 'MappedDiff::MappedDiff';
        //wfProfileIn( $fname );
 
        assert(sizeof($from_lines) == sizeof($mapped_from_lines));
        assert(sizeof($to_lines) == sizeof($mapped_to_lines));
 
        parent::__construct($mapped_from_lines, $mapped_to_lines);
 
        $xi = $yi = 0;
        for ($i = 0; $i < sizeof($this->edits); $i++) {
            $orig = &$this->edits[$i]->orig;
            if (is_array($orig)) {
                $orig = array_slice($from_lines, $xi, sizeof($orig));
                $xi += sizeof($orig);
            }
 
            $closing = &$this->edits[$i]->closing;
            if (is_array($closing)) {
                $closing = array_slice($to_lines, $yi, sizeof($closing));
                $yi += sizeof($closing);
            }
        }
        //wfProfileOut( $fname );
    }

References Diff\$edits, $i, and $orig.

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

• Services/COPage/mediawikidiff/class.WordLevelDiff.php