Diff Class Reference

Inheritance diagram for Diff:

[legend]List of all members.

Public Member Functions
	Diff ($from_lines, $to_lines)
	reverse ()
	isEmpty ()
	lcs ()
	orig ()
	closing ()
	_check ($from_lines, $to_lines)
Public Attributes
	$edits

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Detailed Description

Class representing a 'diff' between two sequences of strings.

Definition at line 668 of file DifferenceEngine.php.

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Constructor & Destructor Documentation

Diff::Diff (  $  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 680 of file DifferenceEngine.php.

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Member Function Documentation

Diff::_check (  $  from_lines, $  to_lines )

Check a Diff for validity. This is here only for debugging purposes. Definition at line 775 of file DifferenceEngine.php. References _check(), lcs(), and reverse(). Referenced by _check().

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 760 of file DifferenceEngine.php. References $lines.

Diff::isEmpty (   )

Check for empty diff. Returns: bool True iff two sequences were identical. Definition at line 710 of file DifferenceEngine.php.

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 725 of file DifferenceEngine.php. Referenced by _check().

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 742 of file DifferenceEngine.php. References $lines.

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 696 of file DifferenceEngine.php. Referenced by _check().

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Member Data Documentation

Diff::$edits

Definition at line 670 of file DifferenceEngine.php.

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

• DifferenceEngine.php

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