WordLevelDiff Class Reference

Inheritance diagram for WordLevelDiff:

Collaboration diagram for WordLevelDiff:

Public Member Functions
	__construct ($orig_lines, $closing_lines)
	_split ($lines)
	orig ()
	closing ()
Public Member Functions inherited from MappedDiff
	__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...

Data Fields
const	MAX_LINE_LENGTH = 10000
Data Fields inherited from Diff
	$edits

Detailed Description

Definition at line 1102 of file class.WordLevelDiff.php.

Constructor & Destructor Documentation

__construct()

WordLevelDiff::__construct	(		$orig_lines,
			$closing_lines
	)

Definition at line 1106 of file class.WordLevelDiff.php.

References ILIAS\GlobalScreen\Provider\__construct().

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

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

        parent::__construct(
            $orig_words,
            $closing_words,
            $orig_stripped,
            $closing_stripped
        );
        //wfProfileOut( $fname );
    }

Here is the call graph for this function:

Member Function Documentation

_split()

WordLevelDiff::_split

(

$lines

)

Definition at line 1123 of file class.WordLevelDiff.php.

    {
        $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;
                $stripped[] = $line;
            } else {
                $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);
    }

closing()

WordLevelDiff::closing

(

)

Definition at line 1177 of file class.WordLevelDiff.php.

References _DiffOp\$closing.

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

        foreach ($this->edits as $edit) {
            if ($edit->type == 'copy') {
                $closing->addWords($edit->closing);
            } elseif ($edit->closing) {
                $closing->addWords($edit->closing, 'ins');
            }
        }
        $lines = $closing->getLines();
        //wfProfileOut( $fname );
        return $lines;
    }

orig()

WordLevelDiff::orig

(

)

Definition at line 1159 of file class.WordLevelDiff.php.

References _DiffOp\$orig.

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

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

Field Documentation

MAX_LINE_LENGTH

const WordLevelDiff::MAX_LINE_LENGTH = 10000

Definition at line 1104 of file class.WordLevelDiff.php.

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

• components/ILIAS/COPage/mediawikidiff/class.WordLevelDiff.php