WordPress Cross Reference

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Defines 7 classes

Text_Diff:: (12 methods):
  Text_Diff()
  getDiff()
  countAddedLines()
  countDeletedLines()
  reverse()
  isEmpty()
  lcs()
  getOriginal()
  getFinal()
  trimNewlines()
  _getTempDir()
  _check()

Text_MappedDiff:: (1 method):
Text_MappedDiff()

Text_Diff_Op:: (3 methods):
  reverse()
  norig()
  nfinal()

Text_Diff_Op_copy:: (2 methods):
Text_Diff_Op_copy()
reverse()

Text_Diff_Op_delete:: (2 methods):
Text_Diff_Op_delete()
reverse()

Text_Diff_Op_add:: (2 methods):
Text_Diff_Op_add()
reverse()

Text_Diff_Op_change:: (2 methods):
Text_Diff_Op_change()
reverse()

Class: Text_Diff - X-Ref

General API for generating and formatting diffs - the differences between
two sequences of strings.

The original PHP version of this code was written by Geoffrey T. Dairiki
<dairiki@dairiki.org>, and is used/adapted with his permission.

Copyright 2004 Geoffrey T. Dairiki <dairiki@dairiki.org>
Copyright 2004-2010 The Horde Project (http://www.horde.org/)

See the enclosed file COPYING for license information (LGPL). If you did
not receive this file, see http://opensource.org/licenses/lgpl-license.php.

Text_Diff($engine, $params) X-Ref

Computes diffs between sequences of strings.

param: string $engine Name of the diffing engine to use. 'auto'
param: array $params Parameters to pass to the diffing engine.

getDiff() X-Ref

Returns the array of differences.

countAddedLines() X-Ref

returns the number of new (added) lines in a given diff.

return: integer The number of new lines

countDeletedLines() X-Ref

Returns the number of deleted (removed) lines in a given diff.

return: integer The number of deleted lines

reverse() X-Ref

Computes a reversed diff.

Example:
<code>
$diff = new Text_Diff($lines1, $lines2);
$rev = $diff->reverse();
</code>

return: Text_Diff A Diff object representing the inverse of the

isEmpty() X-Ref

Checks for an empty diff.

return: boolean True if two sequences were identical.

lcs() X-Ref

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

This is mostly for diagnostic purposes.

return: integer The length of the LCS.

getOriginal() X-Ref

Gets the original set of lines.

This reconstructs the $from_lines parameter passed to the constructor.

return: array The original sequence of strings.

getFinal() X-Ref

Gets the final set of lines.

This reconstructs the $to_lines parameter passed to the constructor.

return: array The sequence of strings.

trimNewlines(&$line, $key) X-Ref

Removes trailing newlines from a line of text. This is meant to be used
with array_walk().

param: string $line The line to trim.
param: integer $key The index of the line in the array. Not used.

_getTempDir() X-Ref

Determines the location of the system temporary directory.

return: string A directory name which can be used for temp files.

_check($from_lines, $to_lines) X-Ref

Checks a diff for validity.

This is here only for debugging purposes.

Class: Text_MappedDiff - X-Ref

Text_MappedDiff($from_lines, $to_lines,$mapped_from_lines, $mapped_to_lines) X-Ref

Computes a diff between sequences of strings.

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

param: array $from_lines         An array of strings.
param: array $to_lines           An array of strings.
param: array $mapped_from_lines  This array should have the same size
param: array $mapped_to_lines    This array should have the same number

Class: Text_Diff_Op - X-Ref

reverse() X-Ref

No description

norig() X-Ref

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nfinal() X-Ref

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Class: Text_Diff_Op_copy - X-Ref

Text_Diff_Op_copy($orig, $final = false) X-Ref

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reverse() X-Ref

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