C:/xampp/htdocs/moodle/mod/wiki/diff/difflib.php File Reference

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Data Structures
class	ouwiki_line
class	ouwiki_word
class	ouwiki_change_range
class	ouwiki_changes
Namespaces
namespace	ouwiki
Functions
	ouwiki_diff_internal ($file1, $file2)
	ouwiki_diff_merge (&$K, &$k, $i, &$E, $p, &$candidates)
	ouwiki_diff_sort_v ($a, $b)
	ouwiki_diff_find_last (&$V, &$E, $hash)
	ouwiki_diff_html_to_lines ($content)
	ouwiki_diff_internal_flip ($diff, $count2)
	ouwiki_diff_words ($lines1, $lines2)
	ouwiki_diff ($file1, $file2)
	ouwiki_diff_add_markers ($html, $words, $markerclass, $beforetext, $aftertext)
	ouwiki_diff_html ($html1, $html2)

---

Function Documentation

ouwiki_diff	(	$	file1,
		$	file2
	)

Runs diff and interprets results into ouwiki_changes object.

Parameters:

array	$file1	Array of lines in file 1. The first line in the file MUST BE INDEX 1 NOT ZERO!!
array	$file2	Array of lines in file 2, again starting from 1.

Returns:

ouwiki_changes Object describing changes

Definition at line 669 of file difflib.php.

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ouwiki_diff_add_markers	(	$	html,
		$	words,
		$	markerclass,
		$	beforetext,
		$	aftertext
	)

Adds HTML span elements to $html around the words listed in $words.

Parameters:

string	$html	HTML content
array	$words	Array of ouwiki_word to mark
string	$markerclass	Name of class for span element

Returns:

HTML with markup added

Definition at line 680 of file difflib.php.

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ouwiki_diff_find_last	(	&$	V,
		&$	E,
		$	hash
	)

Definition at line 238 of file difflib.php.

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ouwiki_diff_html	(	$	html1,
		$	html2
	)

Compares two HTML files. (This is the main function that everything else supports.)

Parameters:

string	$html1	XHTML for file 1
string	$html2	XHTML for file 2

Returns:

array ($result1,$result2) to be displayed indicating the differences

Definition at line 718 of file difflib.php.

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ouwiki_diff_html_to_lines

(

$

content

)

Prepares XHTML content for text difference comparison.

Parameters:

string

$content

XHTML content [NO SLASHES]

Returns:

array Array of ouwiki_line objects

Definition at line 382 of file difflib.php.

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ouwiki_diff_internal	(	$	file1,
		$	file2
	)

Basic diff utility function, using standard diff algorithm.

Based on Bell Laboratories Computing Science Technical Report #41, July 1976, Hunt & McIlroy, Appendix A.1 and A.3.

http://www.cs.dartmouth.edu/~doug/diff.ps

Parameters:

array	$file1	Array of lines in file 1. The first line in the file MUST BE INDEX 1 NOT ZERO!!
array	$file2	Array of lines in file 2, again starting from 1.

Returns:

array An array with one entry (again 1-based) for each line in file 1, with its corresponding position in file 2 or 0 if it isn't there.

Definition at line 27 of file difflib.php.

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ouwiki_diff_internal_flip	(	$	diff,
		$	count2
	)

Flips around the array returned by ouwiki_diff_internal so that it refers to lines from the other file.

Parameters:

array	$diff	Array of index1=>index2
int	$count2	Count of lines in file 2

Returns:

array Flipped version

Definition at line 566 of file difflib.php.

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ouwiki_diff_merge	(	&$	K,
		&$	k,
		$	i,
		&$	E,
		$	p,
		&$	candidates
	)

Definition at line 165 of file difflib.php.

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ouwiki_diff_sort_v	(	$	a,
		$	b
	)

Definition at line 223 of file difflib.php.

ouwiki_diff_words	(	$	lines1,
		$	lines2
	)

Compares two files based initially on lines and then on words within the lines that differ.

Parameters:

array	$lines1	Array of ouwiki_line
array	$lines2	Array of ouwiki_line

Returns:

array (deleted,added); deleted and added are arrays of ouwiki_word with position numbers from $lines1 and $lines2 respectively

Definition at line 587 of file difflib.php.

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