WordLevelDiff Class Reference

Inheritance diagram for WordLevelDiff:

Collaboration diagram for WordLevelDiff:

Public Member Functions
	WordLevelDiff ($orig_lines, $closing_lines)
	_split ($lines)
	orig ()
	Get the original set of lines.
	closing ()
	Get the closing set of lines.
Public Member Functions inherited from MappedDiff
	MappedDiff ($from_lines, $to_lines, $mapped_from_lines, $mapped_to_lines)
	Constructor.
Public Member Functions inherited from Diff
	Diff ($from_lines, $to_lines)
	Constructor.
	reverse ()
	Compute reversed Diff.
	isEmpty ()
	Check for empty diff.
	lcs ()
	Compute the length of the Longest Common Subsequence (LCS).
	_check ($from_lines, $to_lines)
	Check a Diff for validity.

Data Fields
const	MAX_LINE_LENGTH = 10000

Detailed Description

Definition at line 1618 of file class.WordLevelDiff.php.

Member Function Documentation

WordLevelDiff::_split

(

$lines

)

Definition at line 1634 of file class.WordLevelDiff.php.

                                                             {
                $fname = 'WordLevelDiff::WordLevelDiff';
                //wfProfileIn( $fname );

                list ($orig_words, $orig_stripped) = $this->_split($orig_lines);
                list ($closing_words, $closing_stripped) = $this->_split($closing_lines);

                $this->MappedDiff($orig_words, $closing_words,
                                                  $orig_stripped, $closing_stripped);
                //wfProfileOut( $fname );
        }

        function _split($lines) {
                $fname = 'WordLevelDiff::_split';
                //wfProfileIn( $fname );

                $words = array();
                $stripped = array();
                $first = true;
                foreach ( $lines as $line ) {
                        # If the line is too long, just pretend the entire line is one big word
                        # This prevents resource exhaustion problems
                        if ( $first ) {
                                $first = false;
                        } else {
                                $words[] = "\n";
                                $stripped[] = "\n";
                        }
                        if ( strlen( $line ) > self::MAX_LINE_LENGTH ) {
                                $words[] = $line;

WordLevelDiff::closing

(

)

Get the closing set of lines.

This reconstructs the $to_lines parameter passed to the constructor.

Returns

array The sequence of strings.

Reimplemented from Diff.

Definition at line 1683 of file class.WordLevelDiff.php.

References _HWLDF_WordAccumulator\addWords().

                                                {
                        if ($edit->type == 'copy')
                                $orig->addWords($edit->orig);
                        elseif ($edit->orig)
                                $orig->addWords($edit->orig, 'del');
                }
                $lines = $orig->getLines();
                //wfProfileOut( $fname );
                return $lines;
        }

        function closing () {

Here is the call graph for this function:

WordLevelDiff::orig

(

)

Get the original set of lines.

This reconstructs the $from_lines parameter passed to the constructor.

Returns

array The original sequence of strings.

Reimplemented from Diff.

Definition at line 1667 of file class.WordLevelDiff.php.

                               {
                                $m = array();
                                if (preg_match_all('/ ( [^\S\n]+ | [0-9_A-Za-z\x80-\xff]+ | . ) (?: (?!< \n) [^\S\n])? /xs',
                                        $line, $m))
                                {
                                        $words = array_merge( $words, $m[0] );
                                        $stripped = array_merge( $stripped, $m[1] );
                                }
                        }
                }
                //wfProfileOut( $fname );
                return array($words, $stripped);
        }

        function orig () {

WordLevelDiff::WordLevelDiff	(		$orig_lines,
			$closing_lines
	)

Definition at line 1622 of file class.WordLevelDiff.php.

{

Field Documentation

const WordLevelDiff::MAX_LINE_LENGTH = 10000

Definition at line 1620 of file class.WordLevelDiff.php.

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

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