Diff

class Diff (View source)

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

Properties

static $html_cleaner_class
$edits

Methods

__construct($from_lines, $to_lines)

Constructor.

object
reverse()

Compute reversed Diff.

bool
isEmpty()

Check for empty diff.

int
lcs()

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

array
orig()

Get the original set of lines.

array
finaltext()

Get the final set of lines.

_check($from_lines, $to_lines)

Check a Diff for validity.

static 
cleanHTML(string $content, object $cleaner = null)

Attempt to clean invalid HTML, which messes up diffs.

static string
compareHTML($from, $to, $escape = false)

No description

static 
getHTMLChunks($content)

No description

Details

at line 541
__construct($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.

at line 557
object reverse()

Compute reversed Diff.

SYNOPSIS:

$diff = new Diff($lines1, $lines2); $rev = $diff->reverse();

Return Value

object

A Diff object representing the inverse of the original diff.

at line 571
bool isEmpty()

Check for empty diff.

Return Value

bool

True iff two sequences were identical.

at line 586
int lcs()

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

This is mostly for diagnostic purposed.

Return Value

int

The length of the LCS.

at line 603
array orig()

Get the original set of lines.

This reconstructs the $from_lines parameter passed to the constructor.

Return Value

array

The original sequence of strings.

at line 621
array finaltext()

Get the final set of lines.

This reconstructs the $to_lines parameter passed to the constructor.

Return Value

array

The sequence of strings.

at line 636
_check($from_lines, $to_lines)

Check a Diff for validity.

This is here only for debugging purposes.

Parameters

$from_lines
$to_lines

at line 673
static cleanHTML(string $content, object $cleaner = null)

Attempt to clean invalid HTML, which messes up diffs.

This cleans code if possible, using an instance of HTMLCleaner

NB: By default, only extremely simple tidying is performed, by passing through DomDocument::loadHTML and saveXML

Parameters

string $content

HTML content
object $cleaner

Optional instance of a HTMLCleaner class to use, overriding self::$html_cleaner_class

at line 702
static string compareHTML($from, $to, $escape = false)

Parameters

$from
$to
$escape

Return Value

string

at line 794
static getHTMLChunks($content)

Parameters

$content