From 7eb7fd77d81eba75a99288935131881b38c464f6 Mon Sep 17 00:00:00 2001
From: Tim Steiner <tsteiner2@unl.edu>
Date: Fri, 20 Apr 2012 15:45:52 +0000
Subject: [PATCH] Add Text_Diff via pyrus.
---
vendor/pyrus/.pear2registry | Bin 152576 -> 158720 bytes
.../docs/Text_Diff/Text/docs/examples/1.txt | 3 +
.../docs/Text_Diff/Text/docs/examples/2.txt | 3 +
.../Text_Diff/Text/docs/examples/diff.php | 39 ++
vendor/pyrus/php/Text/Diff.php | 453 ++++++++++++++++++
vendor/pyrus/php/Text/Diff/Engine/native.php | 438 +++++++++++++++++
vendor/pyrus/php/Text/Diff/Engine/shell.php | 164 +++++++
vendor/pyrus/php/Text/Diff/Engine/string.php | 250 ++++++++++
vendor/pyrus/php/Text/Diff/Engine/xdiff.php | 66 +++
vendor/pyrus/php/Text/Diff/Mapped.php | 55 +++
vendor/pyrus/php/Text/Diff/Renderer.php | 237 +++++++++
.../pyrus/php/Text/Diff/Renderer/context.php | 77 +++
.../pyrus/php/Text/Diff/Renderer/inline.php | 172 +++++++
.../pyrus/php/Text/Diff/Renderer/unified.php | 67 +++
vendor/pyrus/php/Text/Diff/ThreeWay.php | 276 +++++++++++
vendor/pyrus/php/Text/Diff3.php | 276 +++++++++++
vendor/pyrus/tests/Text_Diff/Text/tests/1.txt | 3 +
vendor/pyrus/tests/Text_Diff/Text/tests/2.txt | 3 +
vendor/pyrus/tests/Text_Diff/Text/tests/3.txt | 4 +
vendor/pyrus/tests/Text_Diff/Text/tests/4.txt | 3 +
vendor/pyrus/tests/Text_Diff/Text/tests/5.txt | 5 +
vendor/pyrus/tests/Text_Diff/Text/tests/6.txt | 7 +
.../tests/Text_Diff/Text/tests/context.patch | 11 +
.../tests/Text_Diff/Text/tests/context.phpt | 25 +
.../tests/Text_Diff/Text/tests/context2.phpt | 31 ++
.../tests/Text_Diff/Text/tests/diff.phpt | 62 +++
.../tests/Text_Diff/Text/tests/inline.phpt | 19 +
.../tests/Text_Diff/Text/tests/inline2.phpt | 37 ++
.../Text_Diff/Text/tests/pear_bug12740.phpt | 30 ++
.../Text_Diff/Text/tests/pear_bug4879.phpt | 30 ++
.../Text_Diff/Text/tests/pear_bug6251.phpt | 45 ++
.../Text_Diff/Text/tests/pear_bug6428.phpt | 18 +
.../tests/Text_Diff/Text/tests/string.phpt | 145 ++++++
.../tests/Text_Diff/Text/tests/unified.patch | 7 +
.../tests/Text_Diff/Text/tests/unified.phpt | 21 +
.../tests/Text_Diff/Text/tests/unified2.phpt | 26 +
.../tests/Text_Diff/Text/tests/xdiff.phpt | 24 +
37 files changed, 3132 insertions(+)
create mode 100644 vendor/pyrus/docs/Text_Diff/Text/docs/examples/1.txt
create mode 100644 vendor/pyrus/docs/Text_Diff/Text/docs/examples/2.txt
create mode 100644 vendor/pyrus/docs/Text_Diff/Text/docs/examples/diff.php
create mode 100644 vendor/pyrus/php/Text/Diff.php
create mode 100644 vendor/pyrus/php/Text/Diff/Engine/native.php
create mode 100644 vendor/pyrus/php/Text/Diff/Engine/shell.php
create mode 100644 vendor/pyrus/php/Text/Diff/Engine/string.php
create mode 100644 vendor/pyrus/php/Text/Diff/Engine/xdiff.php
create mode 100644 vendor/pyrus/php/Text/Diff/Mapped.php
create mode 100644 vendor/pyrus/php/Text/Diff/Renderer.php
create mode 100644 vendor/pyrus/php/Text/Diff/Renderer/context.php
create mode 100644 vendor/pyrus/php/Text/Diff/Renderer/inline.php
create mode 100644 vendor/pyrus/php/Text/Diff/Renderer/unified.php
create mode 100644 vendor/pyrus/php/Text/Diff/ThreeWay.php
create mode 100644 vendor/pyrus/php/Text/Diff3.php
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/1.txt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/2.txt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/3.txt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/4.txt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/5.txt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/6.txt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/context.patch
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/context.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/context2.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/diff.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/inline.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/inline2.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug12740.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug4879.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug6251.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug6428.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/string.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/unified.patch
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/unified.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/unified2.phpt
create mode 100644 vendor/pyrus/tests/Text_Diff/Text/tests/xdiff.phpt
diff --git a/vendor/pyrus/.pear2registry b/vendor/pyrus/.pear2registry
index f45eda32d1bf1c8490fa5e365d9a75d2a1ed0b13..40ecf286c609ce76aa8c5feedc3a113dedfaf42d 100644
GIT binary patch
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diff --git a/vendor/pyrus/docs/Text_Diff/Text/docs/examples/1.txt b/vendor/pyrus/docs/Text_Diff/Text/docs/examples/1.txt
new file mode 100644
index 00000000..976c4475
--- /dev/null
+++ b/vendor/pyrus/docs/Text_Diff/Text/docs/examples/1.txt
@@ -0,0 +1,3 @@
+This line is the same.
+This line is different in 1.txt
+This line is the same.
diff --git a/vendor/pyrus/docs/Text_Diff/Text/docs/examples/2.txt b/vendor/pyrus/docs/Text_Diff/Text/docs/examples/2.txt
new file mode 100644
index 00000000..6fa8051d
--- /dev/null
+++ b/vendor/pyrus/docs/Text_Diff/Text/docs/examples/2.txt
@@ -0,0 +1,3 @@
+This line is the same.
+This line is different in 2.txt
+This line is the same.
diff --git a/vendor/pyrus/docs/Text_Diff/Text/docs/examples/diff.php b/vendor/pyrus/docs/Text_Diff/Text/docs/examples/diff.php
new file mode 100644
index 00000000..66914c25
--- /dev/null
+++ b/vendor/pyrus/docs/Text_Diff/Text/docs/examples/diff.php
@@ -0,0 +1,39 @@
+#!/usr/bin/php
+<?php
+/**
+ * Text_Diff example script.
+ *
+ * Take two files from the command line args and produce a unified
+ * diff of them.
+ *
+ * @package Text_Diff
+ */
+
+require_once 'Text/Diff.php';
+require_once 'Text/Diff/Renderer.php';
+require_once 'Text/Diff/Renderer/unified.php';
+
+/* Make sure we have enough arguments. */
+if (count($argv) < 3) {
+ echo "Usage: diff.php <file1> <file2>\n\n";
+ exit;
+}
+
+/* Make sure both files exist. */
+if (!is_readable($argv[1])) {
+ echo "$argv[1] not found or not readable.\n\n";
+}
+if (!is_readable($argv[2])) {
+ echo "$argv[2] not found or not readable.\n\n";
+}
+
+/* Load the lines of each file. */
+$lines1 = file($argv[1]);
+$lines2 = file($argv[2]);
+
+/* Create the Diff object. */
+$diff = new Text_Diff('auto', array($lines1, $lines2));
+
+/* Output the diff in unified format. */
+$renderer = new Text_Diff_Renderer_unified();
+echo $renderer->render($diff);
diff --git a/vendor/pyrus/php/Text/Diff.php b/vendor/pyrus/php/Text/Diff.php
new file mode 100644
index 00000000..ceeca60f
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff.php
@@ -0,0 +1,453 @@
+<?php
+/**
+ * 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.
+ *
+ * $Horde: framework/Text_Diff/Diff.php,v 1.11.2.12 2009/01/06 15:23:41 jan Exp $
+ *
+ * Copyright 2004 Geoffrey T. Dairiki <dairiki@dairiki.org>
+ * Copyright 2004-2009 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.
+ *
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ */
+class Text_Diff {
+
+ /**
+ * Array of changes.
+ *
+ * @var array
+ */
+ var $_edits;
+
+ /**
+ * Computes diffs between sequences of strings.
+ *
+ * @param string $engine Name of the diffing engine to use. 'auto'
+ * will automatically select the best.
+ * @param array $params Parameters to pass to the diffing engine.
+ * Normally an array of two arrays, each
+ * containing the lines from a file.
+ */
+ function Text_Diff($engine, $params)
+ {
+ // Backward compatibility workaround.
+ if (!is_string($engine)) {
+ $params = array($engine, $params);
+ $engine = 'auto';
+ }
+
+ if ($engine == 'auto') {
+ $engine = extension_loaded('xdiff') ? 'xdiff' : 'native';
+ } else {
+ $engine = basename($engine);
+ }
+
+ require_once 'Text/Diff/Engine/' . $engine . '.php';
+ $class = 'Text_Diff_Engine_' . $engine;
+ $diff_engine = new $class();
+
+ $this->_edits = call_user_func_array(array($diff_engine, 'diff'), $params);
+ }
+
+ /**
+ * Returns the array of differences.
+ */
+ function getDiff()
+ {
+ return $this->_edits;
+ }
+
+ /**
+ * returns the number of new (added) lines in a given diff.
+ *
+ * @since Text_Diff 1.1.0
+ * @since Horde 3.2
+ *
+ * @return integer The number of new lines
+ */
+ function countAddedLines()
+ {
+ $count = 0;
+ foreach ($this->_edits as $edit) {
+ if (is_a($edit, 'Text_Diff_Op_add') ||
+ is_a($edit, 'Text_Diff_Op_change')) {
+ $count += $edit->nfinal();
+ }
+ }
+ return $count;
+ }
+
+ /**
+ * Returns the number of deleted (removed) lines in a given diff.
+ *
+ * @since Text_Diff 1.1.0
+ * @since Horde 3.2
+ *
+ * @return integer The number of deleted lines
+ */
+ function countDeletedLines()
+ {
+ $count = 0;
+ foreach ($this->_edits as $edit) {
+ if (is_a($edit, 'Text_Diff_Op_delete') ||
+ is_a($edit, 'Text_Diff_Op_change')) {
+ $count += $edit->norig();
+ }
+ }
+ return $count;
+ }
+
+ /**
+ * 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
+ * original diff. Note that we purposely don't return a
+ * reference here, since this essentially is a clone()
+ * method.
+ */
+ function reverse()
+ {
+ if (version_compare(zend_version(), '2', '>')) {
+ $rev = clone($this);
+ } else {
+ $rev = $this;
+ }
+ $rev->_edits = array();
+ foreach ($this->_edits as $edit) {
+ $rev->_edits[] = $edit->reverse();
+ }
+ return $rev;
+ }
+
+ /**
+ * Checks for an empty diff.
+ *
+ * @return boolean True if two sequences were identical.
+ */
+ function isEmpty()
+ {
+ foreach ($this->_edits as $edit) {
+ if (!is_a($edit, 'Text_Diff_Op_copy')) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Computes the length of the Longest Common Subsequence (LCS).
+ *
+ * This is mostly for diagnostic purposes.
+ *
+ * @return integer The length of the LCS.
+ */
+ function lcs()
+ {
+ $lcs = 0;
+ foreach ($this->_edits as $edit) {
+ if (is_a($edit, 'Text_Diff_Op_copy')) {
+ $lcs += count($edit->orig);
+ }
+ }
+ return $lcs;
+ }
+
+ /**
+ * Gets the original set of lines.
+ *
+ * This reconstructs the $from_lines parameter passed to the constructor.
+ *
+ * @return array The original sequence of strings.
+ */
+ function getOriginal()
+ {
+ $lines = array();
+ foreach ($this->_edits as $edit) {
+ if ($edit->orig) {
+ array_splice($lines, count($lines), 0, $edit->orig);
+ }
+ }
+ return $lines;
+ }
+
+ /**
+ * Gets the final set of lines.
+ *
+ * This reconstructs the $to_lines parameter passed to the constructor.
+ *
+ * @return array The sequence of strings.
+ */
+ function getFinal()
+ {
+ $lines = array();
+ foreach ($this->_edits as $edit) {
+ if ($edit->final) {
+ array_splice($lines, count($lines), 0, $edit->final);
+ }
+ }
+ return $lines;
+ }
+
+ /**
+ * 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 $key The index of the line in the array. Not used.
+ */
+ static function trimNewlines(&$line, $key)
+ {
+ $line = str_replace(array("\n", "\r"), '', $line);
+ }
+
+ /**
+ * Determines the location of the system temporary directory.
+ *
+ * @static
+ *
+ * @access protected
+ *
+ * @return string A directory name which can be used for temp files.
+ * Returns false if one could not be found.
+ */
+ function _getTempDir()
+ {
+ $tmp_locations = array('/tmp', '/var/tmp', 'c:\WUTemp', 'c:\temp',
+ 'c:\windows\temp', 'c:\winnt\temp');
+
+ /* Try PHP's upload_tmp_dir directive. */
+ $tmp = ini_get('upload_tmp_dir');
+
+ /* Otherwise, try to determine the TMPDIR environment variable. */
+ if (!strlen($tmp)) {
+ $tmp = getenv('TMPDIR');
+ }
+
+ /* If we still cannot determine a value, then cycle through a list of
+ * preset possibilities. */
+ while (!strlen($tmp) && count($tmp_locations)) {
+ $tmp_check = array_shift($tmp_locations);
+ if (@is_dir($tmp_check)) {
+ $tmp = $tmp_check;
+ }
+ }
+
+ /* If it is still empty, we have failed, so return false; otherwise
+ * return the directory determined. */
+ return strlen($tmp) ? $tmp : false;
+ }
+
+ /**
+ * Checks a diff for validity.
+ *
+ * This is here only for debugging purposes.
+ */
+ function _check($from_lines, $to_lines)
+ {
+ if (serialize($from_lines) != serialize($this->getOriginal())) {
+ trigger_error("Reconstructed original doesn't match", E_USER_ERROR);
+ }
+ if (serialize($to_lines) != serialize($this->getFinal())) {
+ trigger_error("Reconstructed final doesn't match", E_USER_ERROR);
+ }
+
+ $rev = $this->reverse();
+ if (serialize($to_lines) != serialize($rev->getOriginal())) {
+ trigger_error("Reversed original doesn't match", E_USER_ERROR);
+ }
+ if (serialize($from_lines) != serialize($rev->getFinal())) {
+ trigger_error("Reversed final doesn't match", E_USER_ERROR);
+ }
+
+ $prevtype = null;
+ foreach ($this->_edits as $edit) {
+ if ($prevtype == get_class($edit)) {
+ trigger_error("Edit sequence is non-optimal", E_USER_ERROR);
+ }
+ $prevtype = get_class($edit);
+ }
+
+ return true;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ */
+class Text_MappedDiff extends Text_Diff {
+
+ /**
+ * 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
+ * number of elements as $from_lines. The
+ * elements in $mapped_from_lines and
+ * $mapped_to_lines are what is actually
+ * compared when computing the diff.
+ * @param array $mapped_to_lines This array should have the same number
+ * of elements as $to_lines.
+ */
+ function Text_MappedDiff($from_lines, $to_lines,
+ $mapped_from_lines, $mapped_to_lines)
+ {
+ assert(count($from_lines) == count($mapped_from_lines));
+ assert(count($to_lines) == count($mapped_to_lines));
+
+ parent::Text_Diff($mapped_from_lines, $mapped_to_lines);
+
+ $xi = $yi = 0;
+ for ($i = 0; $i < count($this->_edits); $i++) {
+ $orig = &$this->_edits[$i]->orig;
+ if (is_array($orig)) {
+ $orig = array_slice($from_lines, $xi, count($orig));
+ $xi += count($orig);
+ }
+
+ $final = &$this->_edits[$i]->final;
+ if (is_array($final)) {
+ $final = array_slice($to_lines, $yi, count($final));
+ $yi += count($final);
+ }
+ }
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff_Op {
+
+ var $orig;
+ var $final;
+
+ function &reverse()
+ {
+ trigger_error('Abstract method', E_USER_ERROR);
+ }
+
+ function norig()
+ {
+ return $this->orig ? count($this->orig) : 0;
+ }
+
+ function nfinal()
+ {
+ return $this->final ? count($this->final) : 0;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff_Op_copy extends Text_Diff_Op {
+
+ function Text_Diff_Op_copy($orig, $final = false)
+ {
+ if (!is_array($final)) {
+ $final = $orig;
+ }
+ $this->orig = $orig;
+ $this->final = $final;
+ }
+
+ function &reverse()
+ {
+ $reverse = new Text_Diff_Op_copy($this->final, $this->orig);
+ return $reverse;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff_Op_delete extends Text_Diff_Op {
+
+ function Text_Diff_Op_delete($lines)
+ {
+ $this->orig = $lines;
+ $this->final = false;
+ }
+
+ function &reverse()
+ {
+ $reverse = new Text_Diff_Op_add($this->orig);
+ return $reverse;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff_Op_add extends Text_Diff_Op {
+
+ function Text_Diff_Op_add($lines)
+ {
+ $this->final = $lines;
+ $this->orig = false;
+ }
+
+ function &reverse()
+ {
+ $reverse = new Text_Diff_Op_delete($this->final);
+ return $reverse;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff_Op_change extends Text_Diff_Op {
+
+ function Text_Diff_Op_change($orig, $final)
+ {
+ $this->orig = $orig;
+ $this->final = $final;
+ }
+
+ function &reverse()
+ {
+ $reverse = new Text_Diff_Op_change($this->final, $this->orig);
+ return $reverse;
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Engine/native.php b/vendor/pyrus/php/Text/Diff/Engine/native.php
new file mode 100644
index 00000000..84168c0b
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Engine/native.php
@@ -0,0 +1,438 @@
+<?php
+/**
+ * Class used internally by Text_Diff to actually compute the diffs.
+ *
+ * This class is implemented using native PHP code.
+ *
+ * The algorithm used here is mostly lifted from the perl module
+ * Algorithm::Diff (version 1.06) by Ned Konz, which is available at:
+ * http://www.perl.com/CPAN/authors/id/N/NE/NEDKONZ/Algorithm-Diff-1.06.zip
+ *
+ * More ideas are taken from: http://www.ics.uci.edu/~eppstein/161/960229.html
+ *
+ * Some ideas (and a bit of code) are taken from analyze.c, of GNU
+ * diffutils-2.7, which can be found at:
+ * ftp://gnudist.gnu.org/pub/gnu/diffutils/diffutils-2.7.tar.gz
+ *
+ * Some ideas (subdivision by NCHUNKS > 2, and some optimizations) are from
+ * Geoffrey T. Dairiki <dairiki@dairiki.org>. The original PHP version of this
+ * code was written by him, and is used/adapted with his permission.
+ *
+ * $Horde: framework/Text_Diff/Diff/Engine/native.php,v 1.7.2.5 2009/01/06 15:23:41 jan Exp $
+ *
+ * Copyright 2004-2009 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.
+ *
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ * @package Text_Diff
+ */
+class Text_Diff_Engine_native {
+
+ function diff($from_lines, $to_lines)
+ {
+ array_walk($from_lines, array('Text_Diff', 'trimNewlines'));
+ array_walk($to_lines, array('Text_Diff', 'trimNewlines'));
+
+ $n_from = count($from_lines);
+ $n_to = count($to_lines);
+
+ $this->xchanged = $this->ychanged = array();
+ $this->xv = $this->yv = array();
+ $this->xind = $this->yind = array();
+ unset($this->seq);
+ unset($this->in_seq);
+ unset($this->lcs);
+
+ // Skip leading common lines.
+ for ($skip = 0; $skip < $n_from && $skip < $n_to; $skip++) {
+ if ($from_lines[$skip] !== $to_lines[$skip]) {
+ break;
+ }
+ $this->xchanged[$skip] = $this->ychanged[$skip] = false;
+ }
+
+ // Skip trailing common lines.
+ $xi = $n_from; $yi = $n_to;
+ for ($endskip = 0; --$xi > $skip && --$yi > $skip; $endskip++) {
+ if ($from_lines[$xi] !== $to_lines[$yi]) {
+ break;
+ }
+ $this->xchanged[$xi] = $this->ychanged[$yi] = false;
+ }
+
+ // Ignore lines which do not exist in both files.
+ for ($xi = $skip; $xi < $n_from - $endskip; $xi++) {
+ $xhash[$from_lines[$xi]] = 1;
+ }
+ for ($yi = $skip; $yi < $n_to - $endskip; $yi++) {
+ $line = $to_lines[$yi];
+ if (($this->ychanged[$yi] = empty($xhash[$line]))) {
+ continue;
+ }
+ $yhash[$line] = 1;
+ $this->yv[] = $line;
+ $this->yind[] = $yi;
+ }
+ for ($xi = $skip; $xi < $n_from - $endskip; $xi++) {
+ $line = $from_lines[$xi];
+ if (($this->xchanged[$xi] = empty($yhash[$line]))) {
+ continue;
+ }
+ $this->xv[] = $line;
+ $this->xind[] = $xi;
+ }
+
+ // Find the LCS.
+ $this->_compareseq(0, count($this->xv), 0, count($this->yv));
+
+ // Merge edits when possible.
+ $this->_shiftBoundaries($from_lines, $this->xchanged, $this->ychanged);
+ $this->_shiftBoundaries($to_lines, $this->ychanged, $this->xchanged);
+
+ // Compute the edit operations.
+ $edits = array();
+ $xi = $yi = 0;
+ while ($xi < $n_from || $yi < $n_to) {
+ assert($yi < $n_to || $this->xchanged[$xi]);
+ assert($xi < $n_from || $this->ychanged[$yi]);
+
+ // Skip matching "snake".
+ $copy = array();
+ while ($xi < $n_from && $yi < $n_to
+ && !$this->xchanged[$xi] && !$this->ychanged[$yi]) {
+ $copy[] = $from_lines[$xi++];
+ ++$yi;
+ }
+ if ($copy) {
+ $edits[] = &new Text_Diff_Op_copy($copy);
+ }
+
+ // Find deletes & adds.
+ $delete = array();
+ while ($xi < $n_from && $this->xchanged[$xi]) {
+ $delete[] = $from_lines[$xi++];
+ }
+
+ $add = array();
+ while ($yi < $n_to && $this->ychanged[$yi]) {
+ $add[] = $to_lines[$yi++];
+ }
+
+ if ($delete && $add) {
+ $edits[] = &new Text_Diff_Op_change($delete, $add);
+ } elseif ($delete) {
+ $edits[] = &new Text_Diff_Op_delete($delete);
+ } elseif ($add) {
+ $edits[] = &new Text_Diff_Op_add($add);
+ }
+ }
+
+ return $edits;
+ }
+
+ /**
+ * Divides the Largest Common Subsequence (LCS) of the sequences (XOFF,
+ * XLIM) and (YOFF, YLIM) into NCHUNKS approximately equally sized
+ * segments.
+ *
+ * Returns (LCS, PTS). LCS is the length of the LCS. PTS is an array of
+ * NCHUNKS+1 (X, Y) indexes giving the diving points between sub
+ * sequences. The first sub-sequence is contained in (X0, X1), (Y0, Y1),
+ * the second in (X1, X2), (Y1, Y2) and so on. Note that (X0, Y0) ==
+ * (XOFF, YOFF) and (X[NCHUNKS], Y[NCHUNKS]) == (XLIM, YLIM).
+ *
+ * This function assumes that the first lines of the specified portions of
+ * the two files do not match, and likewise that the last lines do not
+ * match. The caller must trim matching lines from the beginning and end
+ * of the portions it is going to specify.
+ */
+ function _diag ($xoff, $xlim, $yoff, $ylim, $nchunks)
+ {
+ $flip = false;
+
+ if ($xlim - $xoff > $ylim - $yoff) {
+ /* Things seems faster (I'm not sure I understand why) when the
+ * shortest sequence is in X. */
+ $flip = true;
+ list ($xoff, $xlim, $yoff, $ylim)
+ = array($yoff, $ylim, $xoff, $xlim);
+ }
+
+ if ($flip) {
+ for ($i = $ylim - 1; $i >= $yoff; $i--) {
+ $ymatches[$this->xv[$i]][] = $i;
+ }
+ } else {
+ for ($i = $ylim - 1; $i >= $yoff; $i--) {
+ $ymatches[$this->yv[$i]][] = $i;
+ }
+ }
+
+ $this->lcs = 0;
+ $this->seq[0]= $yoff - 1;
+ $this->in_seq = array();
+ $ymids[0] = array();
+
+ $numer = $xlim - $xoff + $nchunks - 1;
+ $x = $xoff;
+ for ($chunk = 0; $chunk < $nchunks; $chunk++) {
+ if ($chunk > 0) {
+ for ($i = 0; $i <= $this->lcs; $i++) {
+ $ymids[$i][$chunk - 1] = $this->seq[$i];
+ }
+ }
+
+ $x1 = $xoff + (int)(($numer + ($xlim - $xoff) * $chunk) / $nchunks);
+ for (; $x < $x1; $x++) {
+ $line = $flip ? $this->yv[$x] : $this->xv[$x];
+ if (empty($ymatches[$line])) {
+ continue;
+ }
+ $matches = $ymatches[$line];
+ reset($matches);
+ while (list(, $y) = each($matches)) {
+ if (empty($this->in_seq[$y])) {
+ $k = $this->_lcsPos($y);
+ assert($k > 0);
+ $ymids[$k] = $ymids[$k - 1];
+ break;
+ }
+ }
+ while (list(, $y) = each($matches)) {
+ if ($y > $this->seq[$k - 1]) {
+ assert($y <= $this->seq[$k]);
+ /* Optimization: this is a common case: next match is
+ * just replacing previous match. */
+ $this->in_seq[$this->seq[$k]] = false;
+ $this->seq[$k] = $y;
+ $this->in_seq[$y] = 1;
+ } elseif (empty($this->in_seq[$y])) {
+ $k = $this->_lcsPos($y);
+ assert($k > 0);
+ $ymids[$k] = $ymids[$k - 1];
+ }
+ }
+ }
+ }
+
+ $seps[] = $flip ? array($yoff, $xoff) : array($xoff, $yoff);
+ $ymid = $ymids[$this->lcs];
+ for ($n = 0; $n < $nchunks - 1; $n++) {
+ $x1 = $xoff + (int)(($numer + ($xlim - $xoff) * $n) / $nchunks);
+ $y1 = $ymid[$n] + 1;
+ $seps[] = $flip ? array($y1, $x1) : array($x1, $y1);
+ }
+ $seps[] = $flip ? array($ylim, $xlim) : array($xlim, $ylim);
+
+ return array($this->lcs, $seps);
+ }
+
+ function _lcsPos($ypos)
+ {
+ $end = $this->lcs;
+ if ($end == 0 || $ypos > $this->seq[$end]) {
+ $this->seq[++$this->lcs] = $ypos;
+ $this->in_seq[$ypos] = 1;
+ return $this->lcs;
+ }
+
+ $beg = 1;
+ while ($beg < $end) {
+ $mid = (int)(($beg + $end) / 2);
+ if ($ypos > $this->seq[$mid]) {
+ $beg = $mid + 1;
+ } else {
+ $end = $mid;
+ }
+ }
+
+ assert($ypos != $this->seq[$end]);
+
+ $this->in_seq[$this->seq[$end]] = false;
+ $this->seq[$end] = $ypos;
+ $this->in_seq[$ypos] = 1;
+ return $end;
+ }
+
+ /**
+ * Finds LCS of two sequences.
+ *
+ * The results are recorded in the vectors $this->{x,y}changed[], by
+ * storing a 1 in the element for each line that is an insertion or
+ * deletion (ie. is not in the LCS).
+ *
+ * The subsequence of file 0 is (XOFF, XLIM) and likewise for file 1.
+ *
+ * Note that XLIM, YLIM are exclusive bounds. All line numbers are
+ * origin-0 and discarded lines are not counted.
+ */
+ function _compareseq ($xoff, $xlim, $yoff, $ylim)
+ {
+ /* Slide down the bottom initial diagonal. */
+ while ($xoff < $xlim && $yoff < $ylim
+ && $this->xv[$xoff] == $this->yv[$yoff]) {
+ ++$xoff;
+ ++$yoff;
+ }
+
+ /* Slide up the top initial diagonal. */
+ while ($xlim > $xoff && $ylim > $yoff
+ && $this->xv[$xlim - 1] == $this->yv[$ylim - 1]) {
+ --$xlim;
+ --$ylim;
+ }
+
+ if ($xoff == $xlim || $yoff == $ylim) {
+ $lcs = 0;
+ } else {
+ /* This is ad hoc but seems to work well. $nchunks =
+ * sqrt(min($xlim - $xoff, $ylim - $yoff) / 2.5); $nchunks =
+ * max(2,min(8,(int)$nchunks)); */
+ $nchunks = min(7, $xlim - $xoff, $ylim - $yoff) + 1;
+ list($lcs, $seps)
+ = $this->_diag($xoff, $xlim, $yoff, $ylim, $nchunks);
+ }
+
+ if ($lcs == 0) {
+ /* X and Y sequences have no common subsequence: mark all
+ * changed. */
+ while ($yoff < $ylim) {
+ $this->ychanged[$this->yind[$yoff++]] = 1;
+ }
+ while ($xoff < $xlim) {
+ $this->xchanged[$this->xind[$xoff++]] = 1;
+ }
+ } else {
+ /* Use the partitions to split this problem into subproblems. */
+ reset($seps);
+ $pt1 = $seps[0];
+ while ($pt2 = next($seps)) {
+ $this->_compareseq ($pt1[0], $pt2[0], $pt1[1], $pt2[1]);
+ $pt1 = $pt2;
+ }
+ }
+ }
+
+ /**
+ * Adjusts inserts/deletes of identical lines to join changes as much as
+ * possible.
+ *
+ * We do something when a run of changed lines include a line at one end
+ * and has an excluded, identical line at the other. We are free to
+ * choose which identical line is included. `compareseq' usually chooses
+ * the one at the beginning, but usually it is cleaner to consider the
+ * following identical line to be the "change".
+ *
+ * This is extracted verbatim from analyze.c (GNU diffutils-2.7).
+ */
+ function _shiftBoundaries($lines, &$changed, $other_changed)
+ {
+ $i = 0;
+ $j = 0;
+
+ assert('count($lines) == count($changed)');
+ $len = count($lines);
+ $other_len = count($other_changed);
+
+ while (1) {
+ /* Scan forward to find the beginning of another run of
+ * changes. Also keep track of the corresponding point in the
+ * other file.
+ *
+ * Throughout this code, $i and $j are adjusted together so that
+ * the first $i elements of $changed and the first $j elements of
+ * $other_changed both contain the same number of zeros (unchanged
+ * lines).
+ *
+ * Furthermore, $j is always kept so that $j == $other_len or
+ * $other_changed[$j] == false. */
+ while ($j < $other_len && $other_changed[$j]) {
+ $j++;
+ }
+
+ while ($i < $len && ! $changed[$i]) {
+ assert('$j < $other_len && ! $other_changed[$j]');
+ $i++; $j++;
+ while ($j < $other_len && $other_changed[$j]) {
+ $j++;
+ }
+ }
+
+ if ($i == $len) {
+ break;
+ }
+
+ $start = $i;
+
+ /* Find the end of this run of changes. */
+ while (++$i < $len && $changed[$i]) {
+ continue;
+ }
+
+ do {
+ /* Record the length of this run of changes, so that we can
+ * later determine whether the run has grown. */
+ $runlength = $i - $start;
+
+ /* Move the changed region back, so long as the previous
+ * unchanged line matches the last changed one. This merges
+ * with previous changed regions. */
+ while ($start > 0 && $lines[$start - 1] == $lines[$i - 1]) {
+ $changed[--$start] = 1;
+ $changed[--$i] = false;
+ while ($start > 0 && $changed[$start - 1]) {
+ $start--;
+ }
+ assert('$j > 0');
+ while ($other_changed[--$j]) {
+ continue;
+ }
+ assert('$j >= 0 && !$other_changed[$j]');
+ }
+
+ /* Set CORRESPONDING to the end of the changed run, at the
+ * last point where it corresponds to a changed run in the
+ * other file. CORRESPONDING == LEN means no such point has
+ * been found. */
+ $corresponding = $j < $other_len ? $i : $len;
+
+ /* Move the changed region forward, so long as the first
+ * changed line matches the following unchanged one. This
+ * merges with following changed regions. Do this second, so
+ * that if there are no merges, the changed region is moved
+ * forward as far as possible. */
+ while ($i < $len && $lines[$start] == $lines[$i]) {
+ $changed[$start++] = false;
+ $changed[$i++] = 1;
+ while ($i < $len && $changed[$i]) {
+ $i++;
+ }
+
+ assert('$j < $other_len && ! $other_changed[$j]');
+ $j++;
+ if ($j < $other_len && $other_changed[$j]) {
+ $corresponding = $i;
+ while ($j < $other_len && $other_changed[$j]) {
+ $j++;
+ }
+ }
+ }
+ } while ($runlength != $i - $start);
+
+ /* If possible, move the fully-merged run of changes back to a
+ * corresponding run in the other file. */
+ while ($corresponding < $i) {
+ $changed[--$start] = 1;
+ $changed[--$i] = 0;
+ assert('$j > 0');
+ while ($other_changed[--$j]) {
+ continue;
+ }
+ assert('$j >= 0 && !$other_changed[$j]');
+ }
+ }
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Engine/shell.php b/vendor/pyrus/php/Text/Diff/Engine/shell.php
new file mode 100644
index 00000000..7f858cbf
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Engine/shell.php
@@ -0,0 +1,164 @@
+<?php
+/**
+ * Class used internally by Diff to actually compute the diffs.
+ *
+ * This class uses the Unix `diff` program via shell_exec to compute the
+ * differences between the two input arrays.
+ *
+ * $Horde: framework/Text_Diff/Diff/Engine/shell.php,v 1.6.2.4 2009/01/06 15:23:41 jan Exp $
+ *
+ * Copyright 2007-2009 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.
+ *
+ * @author Milian Wolff <mail@milianw.de>
+ * @package Text_Diff
+ * @since 0.3.0
+ */
+class Text_Diff_Engine_shell {
+
+ /**
+ * Path to the diff executable
+ *
+ * @var string
+ */
+ var $_diffCommand = 'diff';
+
+ /**
+ * Returns the array of differences.
+ *
+ * @param array $from_lines lines of text from old file
+ * @param array $to_lines lines of text from new file
+ *
+ * @return array all changes made (array with Text_Diff_Op_* objects)
+ */
+ function diff($from_lines, $to_lines)
+ {
+ array_walk($from_lines, array('Text_Diff', 'trimNewlines'));
+ array_walk($to_lines, array('Text_Diff', 'trimNewlines'));
+
+ $temp_dir = Text_Diff::_getTempDir();
+
+ // Execute gnu diff or similar to get a standard diff file.
+ $from_file = tempnam($temp_dir, 'Text_Diff');
+ $to_file = tempnam($temp_dir, 'Text_Diff');
+ $fp = fopen($from_file, 'w');
+ fwrite($fp, implode("\n", $from_lines));
+ fclose($fp);
+ $fp = fopen($to_file, 'w');
+ fwrite($fp, implode("\n", $to_lines));
+ fclose($fp);
+ $diff = shell_exec($this->_diffCommand . ' ' . $from_file . ' ' . $to_file);
+ unlink($from_file);
+ unlink($to_file);
+
+ if (is_null($diff)) {
+ // No changes were made
+ return array(new Text_Diff_Op_copy($from_lines));
+ }
+
+ $from_line_no = 1;
+ $to_line_no = 1;
+ $edits = array();
+
+ // Get changed lines by parsing something like:
+ // 0a1,2
+ // 1,2c4,6
+ // 1,5d6
+ preg_match_all('#^(\d+)(?:,(\d+))?([adc])(\d+)(?:,(\d+))?$#m', $diff,
+ $matches, PREG_SET_ORDER);
+
+ foreach ($matches as $match) {
+ if (!isset($match[5])) {
+ // This paren is not set every time (see regex).
+ $match[5] = false;
+ }
+
+ if ($match[3] == 'a') {
+ $from_line_no--;
+ }
+
+ if ($match[3] == 'd') {
+ $to_line_no--;
+ }
+
+ if ($from_line_no < $match[1] || $to_line_no < $match[4]) {
+ // copied lines
+ assert('$match[1] - $from_line_no == $match[4] - $to_line_no');
+ array_push($edits,
+ new Text_Diff_Op_copy(
+ $this->_getLines($from_lines, $from_line_no, $match[1] - 1),
+ $this->_getLines($to_lines, $to_line_no, $match[4] - 1)));
+ }
+
+ switch ($match[3]) {
+ case 'd':
+ // deleted lines
+ array_push($edits,
+ new Text_Diff_Op_delete(
+ $this->_getLines($from_lines, $from_line_no, $match[2])));
+ $to_line_no++;
+ break;
+
+ case 'c':
+ // changed lines
+ array_push($edits,
+ new Text_Diff_Op_change(
+ $this->_getLines($from_lines, $from_line_no, $match[2]),
+ $this->_getLines($to_lines, $to_line_no, $match[5])));
+ break;
+
+ case 'a':
+ // added lines
+ array_push($edits,
+ new Text_Diff_Op_add(
+ $this->_getLines($to_lines, $to_line_no, $match[5])));
+ $from_line_no++;
+ break;
+ }
+ }
+
+ if (!empty($from_lines)) {
+ // Some lines might still be pending. Add them as copied
+ array_push($edits,
+ new Text_Diff_Op_copy(
+ $this->_getLines($from_lines, $from_line_no,
+ $from_line_no + count($from_lines) - 1),
+ $this->_getLines($to_lines, $to_line_no,
+ $to_line_no + count($to_lines) - 1)));
+ }
+
+ return $edits;
+ }
+
+ /**
+ * Get lines from either the old or new text
+ *
+ * @access private
+ *
+ * @param array &$text_lines Either $from_lines or $to_lines
+ * @param int &$line_no Current line number
+ * @param int $end Optional end line, when we want to chop more
+ * than one line.
+ *
+ * @return array The chopped lines
+ */
+ function _getLines(&$text_lines, &$line_no, $end = false)
+ {
+ if (!empty($end)) {
+ $lines = array();
+ // We can shift even more
+ while ($line_no <= $end) {
+ array_push($lines, array_shift($text_lines));
+ $line_no++;
+ }
+ } else {
+ $lines = array(array_shift($text_lines));
+ $line_no++;
+ }
+
+ return $lines;
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Engine/string.php b/vendor/pyrus/php/Text/Diff/Engine/string.php
new file mode 100644
index 00000000..9352e60d
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Engine/string.php
@@ -0,0 +1,250 @@
+<?php
+/**
+ * Parses unified or context diffs output from eg. the diff utility.
+ *
+ * Example:
+ * <code>
+ * $patch = file_get_contents('example.patch');
+ * $diff = new Text_Diff('string', array($patch));
+ * $renderer = new Text_Diff_Renderer_inline();
+ * echo $renderer->render($diff);
+ * </code>
+ *
+ * $Horde: framework/Text_Diff/Diff/Engine/string.php,v 1.5.2.7 2009/07/24 13:04:43 jan Exp $
+ *
+ * Copyright 2005 �rjan Persson <o@42mm.org>
+ * Copyright 2005-2009 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.
+ *
+ * @author �rjan Persson <o@42mm.org>
+ * @package Text_Diff
+ * @since 0.2.0
+ */
+class Text_Diff_Engine_string {
+
+ /**
+ * Parses a unified or context diff.
+ *
+ * First param contains the whole diff and the second can be used to force
+ * a specific diff type. If the second parameter is 'autodetect', the
+ * diff will be examined to find out which type of diff this is.
+ *
+ * @param string $diff The diff content.
+ * @param string $mode The diff mode of the content in $diff. One of
+ * 'context', 'unified', or 'autodetect'.
+ *
+ * @return array List of all diff operations.
+ */
+ function diff($diff, $mode = 'autodetect')
+ {
+ // Detect line breaks.
+ $lnbr = "\n";
+ if (strpos($diff, "\r\n") !== false) {
+ $lnbr = "\r\n";
+ } elseif (strpos($diff, "\r") !== false) {
+ $lnbr = "\r";
+ }
+
+ // Make sure we have a line break at the EOF.
+ if (substr($diff, -strlen($lnbr)) != $lnbr) {
+ $diff .= $lnbr;
+ }
+
+ if ($mode != 'autodetect' && $mode != 'context' && $mode != 'unified') {
+ return PEAR::raiseError('Type of diff is unsupported');
+ }
+
+ if ($mode == 'autodetect') {
+ $context = strpos($diff, '***');
+ $unified = strpos($diff, '---');
+ if ($context === $unified) {
+ return PEAR::raiseError('Type of diff could not be detected');
+ } elseif ($context === false || $unified === false) {
+ $mode = $context !== false ? 'context' : 'unified';
+ } else {
+ $mode = $context < $unified ? 'context' : 'unified';
+ }
+ }
+
+ // Split by new line and remove the diff header, if there is one.
+ $diff = explode($lnbr, $diff);
+ if (($mode == 'context' && strpos($diff[0], '***') === 0) ||
+ ($mode == 'unified' && strpos($diff[0], '---') === 0)) {
+ array_shift($diff);
+ array_shift($diff);
+ }
+
+ if ($mode == 'context') {
+ return $this->parseContextDiff($diff);
+ } else {
+ return $this->parseUnifiedDiff($diff);
+ }
+ }
+
+ /**
+ * Parses an array containing the unified diff.
+ *
+ * @param array $diff Array of lines.
+ *
+ * @return array List of all diff operations.
+ */
+ function parseUnifiedDiff($diff)
+ {
+ $edits = array();
+ $end = count($diff) - 1;
+ for ($i = 0; $i < $end;) {
+ $diff1 = array();
+ switch (substr($diff[$i], 0, 1)) {
+ case ' ':
+ do {
+ $diff1[] = substr($diff[$i], 1);
+ } while (++$i < $end && substr($diff[$i], 0, 1) == ' ');
+ $edits[] = new Text_Diff_Op_copy($diff1);
+ break;
+
+ case '+':
+ // get all new lines
+ do {
+ $diff1[] = substr($diff[$i], 1);
+ } while (++$i < $end && substr($diff[$i], 0, 1) == '+');
+ $edits[] = new Text_Diff_Op_add($diff1);
+ break;
+
+ case '-':
+ // get changed or removed lines
+ $diff2 = array();
+ do {
+ $diff1[] = substr($diff[$i], 1);
+ } while (++$i < $end && substr($diff[$i], 0, 1) == '-');
+
+ while ($i < $end && substr($diff[$i], 0, 1) == '+') {
+ $diff2[] = substr($diff[$i++], 1);
+ }
+ if (count($diff2) == 0) {
+ $edits[] = new Text_Diff_Op_delete($diff1);
+ } else {
+ $edits[] = new Text_Diff_Op_change($diff1, $diff2);
+ }
+ break;
+
+ default:
+ $i++;
+ break;
+ }
+ }
+
+ return $edits;
+ }
+
+ /**
+ * Parses an array containing the context diff.
+ *
+ * @param array $diff Array of lines.
+ *
+ * @return array List of all diff operations.
+ */
+ function parseContextDiff(&$diff)
+ {
+ $edits = array();
+ $i = $max_i = $j = $max_j = 0;
+ $end = count($diff) - 1;
+ while ($i < $end && $j < $end) {
+ while ($i >= $max_i && $j >= $max_j) {
+ // Find the boundaries of the diff output of the two files
+ for ($i = $j;
+ $i < $end && substr($diff[$i], 0, 3) == '***';
+ $i++);
+ for ($max_i = $i;
+ $max_i < $end && substr($diff[$max_i], 0, 3) != '---';
+ $max_i++);
+ for ($j = $max_i;
+ $j < $end && substr($diff[$j], 0, 3) == '---';
+ $j++);
+ for ($max_j = $j;
+ $max_j < $end && substr($diff[$max_j], 0, 3) != '***';
+ $max_j++);
+ }
+
+ // find what hasn't been changed
+ $array = array();
+ while ($i < $max_i &&
+ $j < $max_j &&
+ strcmp($diff[$i], $diff[$j]) == 0) {
+ $array[] = substr($diff[$i], 2);
+ $i++;
+ $j++;
+ }
+
+ while ($i < $max_i && ($max_j-$j) <= 1) {
+ if ($diff[$i] != '' && substr($diff[$i], 0, 1) != ' ') {
+ break;
+ }
+ $array[] = substr($diff[$i++], 2);
+ }
+
+ while ($j < $max_j && ($max_i-$i) <= 1) {
+ if ($diff[$j] != '' && substr($diff[$j], 0, 1) != ' ') {
+ break;
+ }
+ $array[] = substr($diff[$j++], 2);
+ }
+ if (count($array) > 0) {
+ $edits[] = new Text_Diff_Op_copy($array);
+ }
+
+ if ($i < $max_i) {
+ $diff1 = array();
+ switch (substr($diff[$i], 0, 1)) {
+ case '!':
+ $diff2 = array();
+ do {
+ $diff1[] = substr($diff[$i], 2);
+ if ($j < $max_j && substr($diff[$j], 0, 1) == '!') {
+ $diff2[] = substr($diff[$j++], 2);
+ }
+ } while (++$i < $max_i && substr($diff[$i], 0, 1) == '!');
+ $edits[] = new Text_Diff_Op_change($diff1, $diff2);
+ break;
+
+ case '+':
+ do {
+ $diff1[] = substr($diff[$i], 2);
+ } while (++$i < $max_i && substr($diff[$i], 0, 1) == '+');
+ $edits[] = new Text_Diff_Op_add($diff1);
+ break;
+
+ case '-':
+ do {
+ $diff1[] = substr($diff[$i], 2);
+ } while (++$i < $max_i && substr($diff[$i], 0, 1) == '-');
+ $edits[] = new Text_Diff_Op_delete($diff1);
+ break;
+ }
+ }
+
+ if ($j < $max_j) {
+ $diff2 = array();
+ switch (substr($diff[$j], 0, 1)) {
+ case '+':
+ do {
+ $diff2[] = substr($diff[$j++], 2);
+ } while ($j < $max_j && substr($diff[$j], 0, 1) == '+');
+ $edits[] = new Text_Diff_Op_add($diff2);
+ break;
+
+ case '-':
+ do {
+ $diff2[] = substr($diff[$j++], 2);
+ } while ($j < $max_j && substr($diff[$j], 0, 1) == '-');
+ $edits[] = new Text_Diff_Op_delete($diff2);
+ break;
+ }
+ }
+ }
+
+ return $edits;
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Engine/xdiff.php b/vendor/pyrus/php/Text/Diff/Engine/xdiff.php
new file mode 100644
index 00000000..241d2e52
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Engine/xdiff.php
@@ -0,0 +1,66 @@
+<?php
+/**
+ * Class used internally by Diff to actually compute the diffs.
+ *
+ * This class uses the xdiff PECL package (http://pecl.php.net/package/xdiff)
+ * to compute the differences between the two input arrays.
+ *
+ * $Horde: framework/Text_Diff/Diff/Engine/xdiff.php,v 1.4.2.5 2009/07/24 13:06:24 jan Exp $
+ *
+ * Copyright 2004-2009 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.
+ *
+ * @author Jon Parise <jon@horde.org>
+ * @package Text_Diff
+ */
+class Text_Diff_Engine_xdiff {
+
+ /**
+ */
+ function diff($from_lines, $to_lines)
+ {
+ array_walk($from_lines, array('Text_Diff', 'trimNewlines'));
+ array_walk($to_lines, array('Text_Diff', 'trimNewlines'));
+
+ /* Convert the two input arrays into strings for xdiff processing. */
+ $from_string = implode("\n", $from_lines);
+ $to_string = implode("\n", $to_lines);
+
+ /* Diff the two strings and convert the result to an array. */
+ $diff = xdiff_string_diff($from_string, $to_string, count($to_lines));
+ $diff = explode("\n", $diff);
+
+ /* Walk through the diff one line at a time. We build the $edits
+ * array of diff operations by reading the first character of the
+ * xdiff output (which is in the "unified diff" format).
+ *
+ * Note that we don't have enough information to detect "changed"
+ * lines using this approach, so we can't add Text_Diff_Op_changed
+ * instances to the $edits array. The result is still perfectly
+ * valid, albeit a little less descriptive and efficient. */
+ $edits = array();
+ foreach ($diff as $line) {
+ if (!strlen($line)) {
+ continue;
+ }
+ switch ($line[0]) {
+ case ' ':
+ $edits[] = &new Text_Diff_Op_copy(array(substr($line, 1)));
+ break;
+
+ case '+':
+ $edits[] = &new Text_Diff_Op_add(array(substr($line, 1)));
+ break;
+
+ case '-':
+ $edits[] = &new Text_Diff_Op_delete(array(substr($line, 1)));
+ break;
+ }
+ }
+
+ return $edits;
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Mapped.php b/vendor/pyrus/php/Text/Diff/Mapped.php
new file mode 100644
index 00000000..dc46e5e4
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Mapped.php
@@ -0,0 +1,55 @@
+<?php
+/**
+ * $Horde: framework/Text_Diff/Diff/Mapped.php,v 1.3.2.4 2009/01/06 15:23:41 jan Exp $
+ *
+ * Copyright 2007-2009 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.
+ *
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ */
+class Text_Diff_Mapped extends Text_Diff {
+
+ /**
+ * 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
+ * number of elements as $from_lines. The
+ * elements in $mapped_from_lines and
+ * $mapped_to_lines are what is actually
+ * compared when computing the diff.
+ * @param array $mapped_to_lines This array should have the same number
+ * of elements as $to_lines.
+ */
+ function Text_Diff_Mapped($from_lines, $to_lines,
+ $mapped_from_lines, $mapped_to_lines)
+ {
+ assert(count($from_lines) == count($mapped_from_lines));
+ assert(count($to_lines) == count($mapped_to_lines));
+
+ parent::Text_Diff($mapped_from_lines, $mapped_to_lines);
+
+ $xi = $yi = 0;
+ for ($i = 0; $i < count($this->_edits); $i++) {
+ $orig = &$this->_edits[$i]->orig;
+ if (is_array($orig)) {
+ $orig = array_slice($from_lines, $xi, count($orig));
+ $xi += count($orig);
+ }
+
+ $final = &$this->_edits[$i]->final;
+ if (is_array($final)) {
+ $final = array_slice($to_lines, $yi, count($final));
+ $yi += count($final);
+ }
+ }
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Renderer.php b/vendor/pyrus/php/Text/Diff/Renderer.php
new file mode 100644
index 00000000..3a516504
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Renderer.php
@@ -0,0 +1,237 @@
+<?php
+/**
+ * A class to render Diffs in different formats.
+ *
+ * This class renders the diff in classic diff format. It is intended that
+ * this class be customized via inheritance, to obtain fancier outputs.
+ *
+ * $Horde: framework/Text_Diff/Diff/Renderer.php,v 1.5.10.12 2009/07/24 13:26:40 jan Exp $
+ *
+ * Copyright 2004-2009 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.
+ *
+ * @package Text_Diff
+ */
+class Text_Diff_Renderer {
+
+ /**
+ * Number of leading context "lines" to preserve.
+ *
+ * This should be left at zero for this class, but subclasses may want to
+ * set this to other values.
+ */
+ var $_leading_context_lines = 0;
+
+ /**
+ * Number of trailing context "lines" to preserve.
+ *
+ * This should be left at zero for this class, but subclasses may want to
+ * set this to other values.
+ */
+ var $_trailing_context_lines = 0;
+
+ /**
+ * Constructor.
+ */
+ function Text_Diff_Renderer($params = array())
+ {
+ foreach ($params as $param => $value) {
+ $v = '_' . $param;
+ if (isset($this->$v)) {
+ $this->$v = $value;
+ }
+ }
+ }
+
+ /**
+ * Get any renderer parameters.
+ *
+ * @return array All parameters of this renderer object.
+ */
+ function getParams()
+ {
+ $params = array();
+ foreach (get_object_vars($this) as $k => $v) {
+ if ($k[0] == '_') {
+ $params[substr($k, 1)] = $v;
+ }
+ }
+
+ return $params;
+ }
+
+ /**
+ * Renders a diff.
+ *
+ * @param Text_Diff $diff A Text_Diff object.
+ *
+ * @return string The formatted output.
+ */
+ function render($diff)
+ {
+ $xi = $yi = 1;
+ $block = false;
+ $context = array();
+
+ $nlead = $this->_leading_context_lines;
+ $ntrail = $this->_trailing_context_lines;
+
+ $output = $this->_startDiff();
+
+ $diffs = $diff->getDiff();
+ foreach ($diffs as $i => $edit) {
+ /* If these are unchanged (copied) lines, and we want to keep
+ * leading or trailing context lines, extract them from the copy
+ * block. */
+ if (is_a($edit, 'Text_Diff_Op_copy')) {
+ /* Do we have any diff blocks yet? */
+ if (is_array($block)) {
+ /* How many lines to keep as context from the copy
+ * block. */
+ $keep = $i == count($diffs) - 1 ? $ntrail : $nlead + $ntrail;
+ if (count($edit->orig) <= $keep) {
+ /* We have less lines in the block than we want for
+ * context => keep the whole block. */
+ $block[] = $edit;
+ } else {
+ if ($ntrail) {
+ /* Create a new block with as many lines as we need
+ * for the trailing context. */
+ $context = array_slice($edit->orig, 0, $ntrail);
+ $block[] = new Text_Diff_Op_copy($context);
+ }
+ /* @todo */
+ $output .= $this->_block($x0, $ntrail + $xi - $x0,
+ $y0, $ntrail + $yi - $y0,
+ $block);
+ $block = false;
+ }
+ }
+ /* Keep the copy block as the context for the next block. */
+ $context = $edit->orig;
+ } else {
+ /* Don't we have any diff blocks yet? */
+ if (!is_array($block)) {
+ /* Extract context lines from the preceding copy block. */
+ $context = array_slice($context, count($context) - $nlead);
+ $x0 = $xi - count($context);
+ $y0 = $yi - count($context);
+ $block = array();
+ if ($context) {
+ $block[] = new Text_Diff_Op_copy($context);
+ }
+ }
+ $block[] = $edit;
+ }
+
+ if ($edit->orig) {
+ $xi += count($edit->orig);
+ }
+ if ($edit->final) {
+ $yi += count($edit->final);
+ }
+ }
+
+ if (is_array($block)) {
+ $output .= $this->_block($x0, $xi - $x0,
+ $y0, $yi - $y0,
+ $block);
+ }
+
+ return $output . $this->_endDiff();
+ }
+
+ function _block($xbeg, $xlen, $ybeg, $ylen, &$edits)
+ {
+ $output = $this->_startBlock($this->_blockHeader($xbeg, $xlen, $ybeg, $ylen));
+
+ foreach ($edits as $edit) {
+ switch (strtolower(get_class($edit))) {
+ case 'text_diff_op_copy':
+ $output .= $this->_context($edit->orig);
+ break;
+
+ case 'text_diff_op_add':
+ $output .= $this->_added($edit->final);
+ break;
+
+ case 'text_diff_op_delete':
+ $output .= $this->_deleted($edit->orig);
+ break;
+
+ case 'text_diff_op_change':
+ $output .= $this->_changed($edit->orig, $edit->final);
+ break;
+ }
+ }
+
+ return $output . $this->_endBlock();
+ }
+
+ function _startDiff()
+ {
+ return '';
+ }
+
+ function _endDiff()
+ {
+ return '';
+ }
+
+ function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
+ {
+ if ($xlen > 1) {
+ $xbeg .= ',' . ($xbeg + $xlen - 1);
+ }
+ if ($ylen > 1) {
+ $ybeg .= ',' . ($ybeg + $ylen - 1);
+ }
+
+ // this matches the GNU Diff behaviour
+ if ($xlen && !$ylen) {
+ $ybeg--;
+ } elseif (!$xlen) {
+ $xbeg--;
+ }
+
+ return $xbeg . ($xlen ? ($ylen ? 'c' : 'd') : 'a') . $ybeg;
+ }
+
+ function _startBlock($header)
+ {
+ return $header . "\n";
+ }
+
+ function _endBlock()
+ {
+ return '';
+ }
+
+ function _lines($lines, $prefix = ' ')
+ {
+ return $prefix . implode("\n$prefix", $lines) . "\n";
+ }
+
+ function _context($lines)
+ {
+ return $this->_lines($lines, ' ');
+ }
+
+ function _added($lines)
+ {
+ return $this->_lines($lines, '> ');
+ }
+
+ function _deleted($lines)
+ {
+ return $this->_lines($lines, '< ');
+ }
+
+ function _changed($orig, $final)
+ {
+ return $this->_deleted($orig) . "---\n" . $this->_added($final);
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Renderer/context.php b/vendor/pyrus/php/Text/Diff/Renderer/context.php
new file mode 100644
index 00000000..af538015
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Renderer/context.php
@@ -0,0 +1,77 @@
+<?php
+/**
+ * "Context" diff renderer.
+ *
+ * This class renders the diff in classic "context diff" format.
+ *
+ * $Horde: framework/Text_Diff/Diff/Renderer/context.php,v 1.3.2.4 2009/01/06 15:23:42 jan Exp $
+ *
+ * Copyright 2004-2009 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.
+ *
+ * @package Text_Diff
+ */
+
+/** Text_Diff_Renderer */
+require_once 'Text/Diff/Renderer.php';
+
+/**
+ * @package Text_Diff
+ */
+class Text_Diff_Renderer_context extends Text_Diff_Renderer {
+
+ /**
+ * Number of leading context "lines" to preserve.
+ */
+ var $_leading_context_lines = 4;
+
+ /**
+ * Number of trailing context "lines" to preserve.
+ */
+ var $_trailing_context_lines = 4;
+
+ var $_second_block = '';
+
+ function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
+ {
+ if ($xlen != 1) {
+ $xbeg .= ',' . $xlen;
+ }
+ if ($ylen != 1) {
+ $ybeg .= ',' . $ylen;
+ }
+ $this->_second_block = "--- $ybeg ----\n";
+ return "***************\n*** $xbeg ****";
+ }
+
+ function _endBlock()
+ {
+ return $this->_second_block;
+ }
+
+ function _context($lines)
+ {
+ $this->_second_block .= $this->_lines($lines, ' ');
+ return $this->_lines($lines, ' ');
+ }
+
+ function _added($lines)
+ {
+ $this->_second_block .= $this->_lines($lines, '+ ');
+ return '';
+ }
+
+ function _deleted($lines)
+ {
+ return $this->_lines($lines, '- ');
+ }
+
+ function _changed($orig, $final)
+ {
+ $this->_second_block .= $this->_lines($final, '! ');
+ return $this->_lines($orig, '! ');
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Renderer/inline.php b/vendor/pyrus/php/Text/Diff/Renderer/inline.php
new file mode 100644
index 00000000..5dd20d2f
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Renderer/inline.php
@@ -0,0 +1,172 @@
+<?php
+/**
+ * "Inline" diff renderer.
+ *
+ * $Horde: framework/Text_Diff/Diff/Renderer/inline.php,v 1.4.10.16 2009/07/24 13:25:29 jan Exp $
+ *
+ * Copyright 2004-2009 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.
+ *
+ * @author Ciprian Popovici
+ * @package Text_Diff
+ */
+
+/** Text_Diff_Renderer */
+require_once 'Text/Diff/Renderer.php';
+
+/**
+ * "Inline" diff renderer.
+ *
+ * This class renders diffs in the Wiki-style "inline" format.
+ *
+ * @author Ciprian Popovici
+ * @package Text_Diff
+ */
+class Text_Diff_Renderer_inline extends Text_Diff_Renderer {
+
+ /**
+ * Number of leading context "lines" to preserve.
+ */
+ var $_leading_context_lines = 10000;
+
+ /**
+ * Number of trailing context "lines" to preserve.
+ */
+ var $_trailing_context_lines = 10000;
+
+ /**
+ * Prefix for inserted text.
+ */
+ var $_ins_prefix = '<ins>';
+
+ /**
+ * Suffix for inserted text.
+ */
+ var $_ins_suffix = '</ins>';
+
+ /**
+ * Prefix for deleted text.
+ */
+ var $_del_prefix = '<del>';
+
+ /**
+ * Suffix for deleted text.
+ */
+ var $_del_suffix = '</del>';
+
+ /**
+ * Header for each change block.
+ */
+ var $_block_header = '';
+
+ /**
+ * What are we currently splitting on? Used to recurse to show word-level
+ * changes.
+ */
+ var $_split_level = 'lines';
+
+ function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
+ {
+ return $this->_block_header;
+ }
+
+ function _startBlock($header)
+ {
+ return $header;
+ }
+
+ function _lines($lines, $prefix = ' ', $encode = true)
+ {
+ if ($encode) {
+ array_walk($lines, array(&$this, '_encode'));
+ }
+
+ if ($this->_split_level == 'words') {
+ return implode('', $lines);
+ } else {
+ return implode("\n", $lines) . "\n";
+ }
+ }
+
+ function _added($lines)
+ {
+ array_walk($lines, array(&$this, '_encode'));
+ $lines[0] = $this->_ins_prefix . $lines[0];
+ $lines[count($lines) - 1] .= $this->_ins_suffix;
+ return $this->_lines($lines, ' ', false);
+ }
+
+ function _deleted($lines, $words = false)
+ {
+ array_walk($lines, array(&$this, '_encode'));
+ $lines[0] = $this->_del_prefix . $lines[0];
+ $lines[count($lines) - 1] .= $this->_del_suffix;
+ return $this->_lines($lines, ' ', false);
+ }
+
+ function _changed($orig, $final)
+ {
+ /* If we've already split on words, don't try to do so again - just
+ * display. */
+ if ($this->_split_level == 'words') {
+ $prefix = '';
+ while ($orig[0] !== false && $final[0] !== false &&
+ substr($orig[0], 0, 1) == ' ' &&
+ substr($final[0], 0, 1) == ' ') {
+ $prefix .= substr($orig[0], 0, 1);
+ $orig[0] = substr($orig[0], 1);
+ $final[0] = substr($final[0], 1);
+ }
+ return $prefix . $this->_deleted($orig) . $this->_added($final);
+ }
+
+ $text1 = implode("\n", $orig);
+ $text2 = implode("\n", $final);
+
+ /* Non-printing newline marker. */
+ $nl = "\0";
+
+ /* We want to split on word boundaries, but we need to
+ * preserve whitespace as well. Therefore we split on words,
+ * but include all blocks of whitespace in the wordlist. */
+ $diff = new Text_Diff('native',
+ array($this->_splitOnWords($text1, $nl),
+ $this->_splitOnWords($text2, $nl)));
+
+ /* Get the diff in inline format. */
+ $renderer = new Text_Diff_Renderer_inline
+ (array_merge($this->getParams(),
+ array('split_level' => 'words')));
+
+ /* Run the diff and get the output. */
+ return str_replace($nl, "\n", $renderer->render($diff)) . "\n";
+ }
+
+ function _splitOnWords($string, $newlineEscape = "\n")
+ {
+ // Ignore \0; otherwise the while loop will never finish.
+ $string = str_replace("\0", '', $string);
+
+ $words = array();
+ $length = strlen($string);
+ $pos = 0;
+
+ while ($pos < $length) {
+ // Eat a word with any preceding whitespace.
+ $spaces = strspn(substr($string, $pos), " \n");
+ $nextpos = strcspn(substr($string, $pos + $spaces), " \n");
+ $words[] = str_replace("\n", $newlineEscape, substr($string, $pos, $spaces + $nextpos));
+ $pos += $spaces + $nextpos;
+ }
+
+ return $words;
+ }
+
+ function _encode(&$string)
+ {
+ $string = htmlspecialchars($string);
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/Renderer/unified.php b/vendor/pyrus/php/Text/Diff/Renderer/unified.php
new file mode 100644
index 00000000..f990f729
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/Renderer/unified.php
@@ -0,0 +1,67 @@
+<?php
+/**
+ * "Unified" diff renderer.
+ *
+ * This class renders the diff in classic "unified diff" format.
+ *
+ * $Horde: framework/Text_Diff/Diff/Renderer/unified.php,v 1.3.10.7 2009/01/06 15:23:42 jan Exp $
+ *
+ * Copyright 2004-2009 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.
+ *
+ * @author Ciprian Popovici
+ * @package Text_Diff
+ */
+
+/** Text_Diff_Renderer */
+require_once 'Text/Diff/Renderer.php';
+
+/**
+ * @package Text_Diff
+ */
+class Text_Diff_Renderer_unified extends Text_Diff_Renderer {
+
+ /**
+ * Number of leading context "lines" to preserve.
+ */
+ var $_leading_context_lines = 4;
+
+ /**
+ * Number of trailing context "lines" to preserve.
+ */
+ var $_trailing_context_lines = 4;
+
+ function _blockHeader($xbeg, $xlen, $ybeg, $ylen)
+ {
+ if ($xlen != 1) {
+ $xbeg .= ',' . $xlen;
+ }
+ if ($ylen != 1) {
+ $ybeg .= ',' . $ylen;
+ }
+ return "@@ -$xbeg +$ybeg @@";
+ }
+
+ function _context($lines)
+ {
+ return $this->_lines($lines, ' ');
+ }
+
+ function _added($lines)
+ {
+ return $this->_lines($lines, '+');
+ }
+
+ function _deleted($lines)
+ {
+ return $this->_lines($lines, '-');
+ }
+
+ function _changed($orig, $final)
+ {
+ return $this->_deleted($orig) . $this->_added($final);
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff/ThreeWay.php b/vendor/pyrus/php/Text/Diff/ThreeWay.php
new file mode 100644
index 00000000..5b0357c6
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff/ThreeWay.php
@@ -0,0 +1,276 @@
+<?php
+/**
+ * A class for computing three way diffs.
+ *
+ * $Horde: framework/Text_Diff/Diff/ThreeWay.php,v 1.3.2.4 2009/01/06 15:23:41 jan Exp $
+ *
+ * Copyright 2007-2009 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.
+ *
+ * @package Text_Diff
+ * @since 0.3.0
+ */
+
+/** Text_Diff */
+require_once 'Text/Diff.php';
+
+/**
+ * A class for computing three way diffs.
+ *
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ */
+class Text_Diff_ThreeWay extends Text_Diff {
+
+ /**
+ * Conflict counter.
+ *
+ * @var integer
+ */
+ var $_conflictingBlocks = 0;
+
+ /**
+ * Computes diff between 3 sequences of strings.
+ *
+ * @param array $orig The original lines to use.
+ * @param array $final1 The first version to compare to.
+ * @param array $final2 The second version to compare to.
+ */
+ function Text_Diff_ThreeWay($orig, $final1, $final2)
+ {
+ if (extension_loaded('xdiff')) {
+ $engine = new Text_Diff_Engine_xdiff();
+ } else {
+ $engine = new Text_Diff_Engine_native();
+ }
+
+ $this->_edits = $this->_diff3($engine->diff($orig, $final1),
+ $engine->diff($orig, $final2));
+ }
+
+ /**
+ */
+ function mergedOutput($label1 = false, $label2 = false)
+ {
+ $lines = array();
+ foreach ($this->_edits as $edit) {
+ if ($edit->isConflict()) {
+ /* FIXME: this should probably be moved somewhere else. */
+ $lines = array_merge($lines,
+ array('<<<<<<<' . ($label1 ? ' ' . $label1 : '')),
+ $edit->final1,
+ array("======="),
+ $edit->final2,
+ array('>>>>>>>' . ($label2 ? ' ' . $label2 : '')));
+ $this->_conflictingBlocks++;
+ } else {
+ $lines = array_merge($lines, $edit->merged());
+ }
+ }
+
+ return $lines;
+ }
+
+ /**
+ * @access private
+ */
+ function _diff3($edits1, $edits2)
+ {
+ $edits = array();
+ $bb = new Text_Diff_ThreeWay_BlockBuilder();
+
+ $e1 = current($edits1);
+ $e2 = current($edits2);
+ while ($e1 || $e2) {
+ if ($e1 && $e2 && is_a($e1, 'Text_Diff_Op_copy') && is_a($e2, 'Text_Diff_Op_copy')) {
+ /* We have copy blocks from both diffs. This is the (only)
+ * time we want to emit a diff3 copy block. Flush current
+ * diff3 diff block, if any. */
+ if ($edit = $bb->finish()) {
+ $edits[] = $edit;
+ }
+
+ $ncopy = min($e1->norig(), $e2->norig());
+ assert($ncopy > 0);
+ $edits[] = new Text_Diff_ThreeWay_Op_copy(array_slice($e1->orig, 0, $ncopy));
+
+ if ($e1->norig() > $ncopy) {
+ array_splice($e1->orig, 0, $ncopy);
+ array_splice($e1->final, 0, $ncopy);
+ } else {
+ $e1 = next($edits1);
+ }
+
+ if ($e2->norig() > $ncopy) {
+ array_splice($e2->orig, 0, $ncopy);
+ array_splice($e2->final, 0, $ncopy);
+ } else {
+ $e2 = next($edits2);
+ }
+ } else {
+ if ($e1 && $e2) {
+ if ($e1->orig && $e2->orig) {
+ $norig = min($e1->norig(), $e2->norig());
+ $orig = array_splice($e1->orig, 0, $norig);
+ array_splice($e2->orig, 0, $norig);
+ $bb->input($orig);
+ }
+
+ if (is_a($e1, 'Text_Diff_Op_copy')) {
+ $bb->out1(array_splice($e1->final, 0, $norig));
+ }
+
+ if (is_a($e2, 'Text_Diff_Op_copy')) {
+ $bb->out2(array_splice($e2->final, 0, $norig));
+ }
+ }
+
+ if ($e1 && ! $e1->orig) {
+ $bb->out1($e1->final);
+ $e1 = next($edits1);
+ }
+ if ($e2 && ! $e2->orig) {
+ $bb->out2($e2->final);
+ $e2 = next($edits2);
+ }
+ }
+ }
+
+ if ($edit = $bb->finish()) {
+ $edits[] = $edit;
+ }
+
+ return $edits;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff_ThreeWay_Op {
+
+ function Text_Diff_ThreeWay_Op($orig = false, $final1 = false, $final2 = false)
+ {
+ $this->orig = $orig ? $orig : array();
+ $this->final1 = $final1 ? $final1 : array();
+ $this->final2 = $final2 ? $final2 : array();
+ }
+
+ function merged()
+ {
+ if (!isset($this->_merged)) {
+ if ($this->final1 === $this->final2) {
+ $this->_merged = &$this->final1;
+ } elseif ($this->final1 === $this->orig) {
+ $this->_merged = &$this->final2;
+ } elseif ($this->final2 === $this->orig) {
+ $this->_merged = &$this->final1;
+ } else {
+ $this->_merged = false;
+ }
+ }
+
+ return $this->_merged;
+ }
+
+ function isConflict()
+ {
+ return $this->merged() === false;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff_ThreeWay_Op_copy extends Text_Diff_ThreeWay_Op {
+
+ function Text_Diff_ThreeWay_Op_Copy($lines = false)
+ {
+ $this->orig = $lines ? $lines : array();
+ $this->final1 = &$this->orig;
+ $this->final2 = &$this->orig;
+ }
+
+ function merged()
+ {
+ return $this->orig;
+ }
+
+ function isConflict()
+ {
+ return false;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff_ThreeWay_BlockBuilder {
+
+ function Text_Diff_ThreeWay_BlockBuilder()
+ {
+ $this->_init();
+ }
+
+ function input($lines)
+ {
+ if ($lines) {
+ $this->_append($this->orig, $lines);
+ }
+ }
+
+ function out1($lines)
+ {
+ if ($lines) {
+ $this->_append($this->final1, $lines);
+ }
+ }
+
+ function out2($lines)
+ {
+ if ($lines) {
+ $this->_append($this->final2, $lines);
+ }
+ }
+
+ function isEmpty()
+ {
+ return !$this->orig && !$this->final1 && !$this->final2;
+ }
+
+ function finish()
+ {
+ if ($this->isEmpty()) {
+ return false;
+ } else {
+ $edit = new Text_Diff_ThreeWay_Op($this->orig, $this->final1, $this->final2);
+ $this->_init();
+ return $edit;
+ }
+ }
+
+ function _init()
+ {
+ $this->orig = $this->final1 = $this->final2 = array();
+ }
+
+ function _append(&$array, $lines)
+ {
+ array_splice($array, sizeof($array), 0, $lines);
+ }
+
+}
diff --git a/vendor/pyrus/php/Text/Diff3.php b/vendor/pyrus/php/Text/Diff3.php
new file mode 100644
index 00000000..e9aea9f8
--- /dev/null
+++ b/vendor/pyrus/php/Text/Diff3.php
@@ -0,0 +1,276 @@
+<?php
+/**
+ * A class for computing three way diffs.
+ *
+ * $Horde: framework/Text_Diff/Diff3.php,v 1.2.10.7 2009/01/06 15:23:41 jan Exp $
+ *
+ * Copyright 2007-2009 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.
+ *
+ * @package Text_Diff
+ * @since 0.3.0
+ */
+
+/** Text_Diff */
+require_once 'Text/Diff.php';
+
+/**
+ * A class for computing three way diffs.
+ *
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ */
+class Text_Diff3 extends Text_Diff {
+
+ /**
+ * Conflict counter.
+ *
+ * @var integer
+ */
+ var $_conflictingBlocks = 0;
+
+ /**
+ * Computes diff between 3 sequences of strings.
+ *
+ * @param array $orig The original lines to use.
+ * @param array $final1 The first version to compare to.
+ * @param array $final2 The second version to compare to.
+ */
+ function Text_Diff3($orig, $final1, $final2)
+ {
+ if (extension_loaded('xdiff')) {
+ $engine = new Text_Diff_Engine_xdiff();
+ } else {
+ $engine = new Text_Diff_Engine_native();
+ }
+
+ $this->_edits = $this->_diff3($engine->diff($orig, $final1),
+ $engine->diff($orig, $final2));
+ }
+
+ /**
+ */
+ function mergedOutput($label1 = false, $label2 = false)
+ {
+ $lines = array();
+ foreach ($this->_edits as $edit) {
+ if ($edit->isConflict()) {
+ /* FIXME: this should probably be moved somewhere else. */
+ $lines = array_merge($lines,
+ array('<<<<<<<' . ($label1 ? ' ' . $label1 : '')),
+ $edit->final1,
+ array("======="),
+ $edit->final2,
+ array('>>>>>>>' . ($label2 ? ' ' . $label2 : '')));
+ $this->_conflictingBlocks++;
+ } else {
+ $lines = array_merge($lines, $edit->merged());
+ }
+ }
+
+ return $lines;
+ }
+
+ /**
+ * @access private
+ */
+ function _diff3($edits1, $edits2)
+ {
+ $edits = array();
+ $bb = new Text_Diff3_BlockBuilder();
+
+ $e1 = current($edits1);
+ $e2 = current($edits2);
+ while ($e1 || $e2) {
+ if ($e1 && $e2 && is_a($e1, 'Text_Diff_Op_copy') && is_a($e2, 'Text_Diff_Op_copy')) {
+ /* We have copy blocks from both diffs. This is the (only)
+ * time we want to emit a diff3 copy block. Flush current
+ * diff3 diff block, if any. */
+ if ($edit = $bb->finish()) {
+ $edits[] = $edit;
+ }
+
+ $ncopy = min($e1->norig(), $e2->norig());
+ assert($ncopy > 0);
+ $edits[] = new Text_Diff3_Op_copy(array_slice($e1->orig, 0, $ncopy));
+
+ if ($e1->norig() > $ncopy) {
+ array_splice($e1->orig, 0, $ncopy);
+ array_splice($e1->final, 0, $ncopy);
+ } else {
+ $e1 = next($edits1);
+ }
+
+ if ($e2->norig() > $ncopy) {
+ array_splice($e2->orig, 0, $ncopy);
+ array_splice($e2->final, 0, $ncopy);
+ } else {
+ $e2 = next($edits2);
+ }
+ } else {
+ if ($e1 && $e2) {
+ if ($e1->orig && $e2->orig) {
+ $norig = min($e1->norig(), $e2->norig());
+ $orig = array_splice($e1->orig, 0, $norig);
+ array_splice($e2->orig, 0, $norig);
+ $bb->input($orig);
+ }
+
+ if (is_a($e1, 'Text_Diff_Op_copy')) {
+ $bb->out1(array_splice($e1->final, 0, $norig));
+ }
+
+ if (is_a($e2, 'Text_Diff_Op_copy')) {
+ $bb->out2(array_splice($e2->final, 0, $norig));
+ }
+ }
+
+ if ($e1 && ! $e1->orig) {
+ $bb->out1($e1->final);
+ $e1 = next($edits1);
+ }
+ if ($e2 && ! $e2->orig) {
+ $bb->out2($e2->final);
+ $e2 = next($edits2);
+ }
+ }
+ }
+
+ if ($edit = $bb->finish()) {
+ $edits[] = $edit;
+ }
+
+ return $edits;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff3_Op {
+
+ function Text_Diff3_Op($orig = false, $final1 = false, $final2 = false)
+ {
+ $this->orig = $orig ? $orig : array();
+ $this->final1 = $final1 ? $final1 : array();
+ $this->final2 = $final2 ? $final2 : array();
+ }
+
+ function merged()
+ {
+ if (!isset($this->_merged)) {
+ if ($this->final1 === $this->final2) {
+ $this->_merged = &$this->final1;
+ } elseif ($this->final1 === $this->orig) {
+ $this->_merged = &$this->final2;
+ } elseif ($this->final2 === $this->orig) {
+ $this->_merged = &$this->final1;
+ } else {
+ $this->_merged = false;
+ }
+ }
+
+ return $this->_merged;
+ }
+
+ function isConflict()
+ {
+ return $this->merged() === false;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff3_Op_copy extends Text_Diff3_Op {
+
+ function Text_Diff3_Op_Copy($lines = false)
+ {
+ $this->orig = $lines ? $lines : array();
+ $this->final1 = &$this->orig;
+ $this->final2 = &$this->orig;
+ }
+
+ function merged()
+ {
+ return $this->orig;
+ }
+
+ function isConflict()
+ {
+ return false;
+ }
+
+}
+
+/**
+ * @package Text_Diff
+ * @author Geoffrey T. Dairiki <dairiki@dairiki.org>
+ *
+ * @access private
+ */
+class Text_Diff3_BlockBuilder {
+
+ function Text_Diff3_BlockBuilder()
+ {
+ $this->_init();
+ }
+
+ function input($lines)
+ {
+ if ($lines) {
+ $this->_append($this->orig, $lines);
+ }
+ }
+
+ function out1($lines)
+ {
+ if ($lines) {
+ $this->_append($this->final1, $lines);
+ }
+ }
+
+ function out2($lines)
+ {
+ if ($lines) {
+ $this->_append($this->final2, $lines);
+ }
+ }
+
+ function isEmpty()
+ {
+ return !$this->orig && !$this->final1 && !$this->final2;
+ }
+
+ function finish()
+ {
+ if ($this->isEmpty()) {
+ return false;
+ } else {
+ $edit = new Text_Diff3_Op($this->orig, $this->final1, $this->final2);
+ $this->_init();
+ return $edit;
+ }
+ }
+
+ function _init()
+ {
+ $this->orig = $this->final1 = $this->final2 = array();
+ }
+
+ function _append(&$array, $lines)
+ {
+ array_splice($array, sizeof($array), 0, $lines);
+ }
+
+}
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/1.txt b/vendor/pyrus/tests/Text_Diff/Text/tests/1.txt
new file mode 100644
index 00000000..976c4475
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/1.txt
@@ -0,0 +1,3 @@
+This line is the same.
+This line is different in 1.txt
+This line is the same.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/2.txt b/vendor/pyrus/tests/Text_Diff/Text/tests/2.txt
new file mode 100644
index 00000000..6fa8051d
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/2.txt
@@ -0,0 +1,3 @@
+This line is the same.
+This line is different in 2.txt
+This line is the same.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/3.txt b/vendor/pyrus/tests/Text_Diff/Text/tests/3.txt
new file mode 100644
index 00000000..0c26fe98
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/3.txt
@@ -0,0 +1,4 @@
+This line is the same.
+This line is different in 1.txt
+This line is the same.
+This line is new in 3.txt
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/4.txt b/vendor/pyrus/tests/Text_Diff/Text/tests/4.txt
new file mode 100644
index 00000000..7cbc69d9
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/4.txt
@@ -0,0 +1,3 @@
+This line is the same.
+This line is different in 4.txt
+This line is the same.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/5.txt b/vendor/pyrus/tests/Text_Diff/Text/tests/5.txt
new file mode 100644
index 00000000..d48db221
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/5.txt
@@ -0,0 +1,5 @@
+This is a test.
+Adding random text to simulate files.
+Various Content.
+More Content.
+Testing diff and renderer.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/6.txt b/vendor/pyrus/tests/Text_Diff/Text/tests/6.txt
new file mode 100644
index 00000000..5b421cd3
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/6.txt
@@ -0,0 +1,7 @@
+This is a test.
+Adding random text to simulate files.
+Inserting a line.
+Various Content.
+Replacing content.
+Testing similarities and renderer.
+Append content.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/context.patch b/vendor/pyrus/tests/Text_Diff/Text/tests/context.patch
new file mode 100644
index 00000000..2a4fad92
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/context.patch
@@ -0,0 +1,11 @@
+*** 1.txt 2005-03-21 13:37:59.000000000 +0100
+--- 2.txt 2005-03-21 13:38:00.000000000 +0100
+***************
+*** 1,3 ****
+ This line is the same.
+! This line is different in 1.txt
+ This line is the same.
+--- 1,3 ----
+ This line is the same.
+! This line is different in 2.txt
+ This line is the same.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/context.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/context.phpt
new file mode 100644
index 00000000..5891ea40
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/context.phpt
@@ -0,0 +1,25 @@
+--TEST--
+Text_Diff: Context renderer
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/context.php';
+
+$lines1 = file(dirname(__FILE__) . '/1.txt');
+$lines2 = file(dirname(__FILE__) . '/2.txt');
+
+$diff = new Text_Diff('native', array($lines1, $lines2));
+
+$renderer = new Text_Diff_Renderer_context();
+echo $renderer->render($diff);
+?>
+--EXPECT--
+***************
+*** 1,3 ****
+ This line is the same.
+! This line is different in 1.txt
+ This line is the same.
+--- 1,3 ----
+ This line is the same.
+! This line is different in 2.txt
+ This line is the same.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/context2.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/context2.phpt
new file mode 100644
index 00000000..6d8f2485
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/context2.phpt
@@ -0,0 +1,31 @@
+--TEST--
+Text_Diff: Context renderer 2
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/context.php';
+
+$lines1 = file(dirname(__FILE__) . '/5.txt');
+$lines2 = file(dirname(__FILE__) . '/6.txt');
+
+$diff = new Text_Diff('native', array($lines1, $lines2));
+
+$renderer = new Text_Diff_Renderer_context();
+echo $renderer->render($diff);
+?>
+--EXPECT--
+***************
+*** 1,5 ****
+ This is a test.
+ Adding random text to simulate files.
+ Various Content.
+! More Content.
+! Testing diff and renderer.
+--- 1,7 ----
+ This is a test.
+ Adding random text to simulate files.
++ Inserting a line.
+ Various Content.
+! Replacing content.
+! Testing similarities and renderer.
+! Append content.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/diff.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/diff.phpt
new file mode 100644
index 00000000..add291f1
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/diff.phpt
@@ -0,0 +1,62 @@
+--TEST--
+Text_Diff: Basic diff operation
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+
+$lines1 = file(dirname(__FILE__) . '/1.txt');
+$lines2 = file(dirname(__FILE__) . '/2.txt');
+
+$diff = new Text_Diff('native', array($lines1, $lines2));
+echo strtolower(print_r($diff, true));
+?>
+--EXPECT--
+text_diff object
+(
+ [_edits] => array
+ (
+ [0] => text_diff_op_copy object
+ (
+ [orig] => array
+ (
+ [0] => this line is the same.
+ )
+
+ [final] => array
+ (
+ [0] => this line is the same.
+ )
+
+ )
+
+ [1] => text_diff_op_change object
+ (
+ [orig] => array
+ (
+ [0] => this line is different in 1.txt
+ )
+
+ [final] => array
+ (
+ [0] => this line is different in 2.txt
+ )
+
+ )
+
+ [2] => text_diff_op_copy object
+ (
+ [orig] => array
+ (
+ [0] => this line is the same.
+ )
+
+ [final] => array
+ (
+ [0] => this line is the same.
+ )
+
+ )
+
+ )
+
+)
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/inline.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/inline.phpt
new file mode 100644
index 00000000..b3d1ba77
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/inline.phpt
@@ -0,0 +1,19 @@
+--TEST--
+Text_Diff: Inline renderer
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/inline.php';
+
+$lines1 = file(dirname(__FILE__) . '/1.txt');
+$lines2 = file(dirname(__FILE__) . '/2.txt');
+
+$diff = new Text_Diff('native', array($lines1, $lines2));
+
+$renderer = new Text_Diff_Renderer_inline();
+echo $renderer->render($diff);
+?>
+--EXPECT--
+This line is the same.
+This line is different in <del>1.txt</del><ins>2.txt</ins>
+This line is the same.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/inline2.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/inline2.phpt
new file mode 100644
index 00000000..153a39f0
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/inline2.phpt
@@ -0,0 +1,37 @@
+--TEST--
+Text_Diff: Inline renderer 2
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/inline.php';
+
+$lines1 = array(
+ "This is a test.\n",
+ "Adding random text to simulate files.\n",
+ "Various Content.\n",
+ "More Content.\n",
+ "Testing diff and renderer.\n"
+);
+$lines2 = array(
+ "This is a test.\n",
+ "Adding random text to simulate files.\n",
+ "Inserting a line.\n",
+ "Various Content.\n",
+ "Replacing content.\n",
+ "Testing similarities and renderer.\n",
+ "Append content.\n"
+);
+
+$diff = new Text_Diff('native', array($lines1, $lines2));
+
+$renderer = new Text_Diff_Renderer_inline();
+echo $renderer->render($diff);
+?>
+--EXPECT--
+This is a test.
+Adding random text to simulate files.
+<ins>Inserting a line.</ins>
+Various Content.
+<del>More Content.</del><ins>Replacing content.</ins>
+Testing <del>diff</del><ins>similarities</ins> and renderer.<ins>
+Append content.</ins>
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug12740.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug12740.phpt
new file mode 100644
index 00000000..56b4ced1
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug12740.phpt
@@ -0,0 +1,30 @@
+--TEST--
+Text_Diff: PEAR Bug #12740 (failed assertion)
+--FILE--
+<?php
+
+require dirname(__FILE__) . '/../Diff.php';
+require dirname(__FILE__) . '/../Diff/Renderer/inline.php';
+
+$a = <<<QQ
+<li>The tax credit amounts to 30% of the cost of the system, with a
+maximum of 2,000. This credit is separate from the 500 home improvement
+credit.</li>
+<h3>Fuel Cells<a
+href="12341234213421341234123412341234123421341234213412342134213423"
+class="anchor" title="Link to this section"><br />
+<li>Your fuel 123456789</li>
+QQ;
+
+$b = <<<QQ
+<li> of gas emissions by 2050</li>
+<li>Raise car fuel economy to 50 mpg by 2017</li>
+<li>Increase access to mass transit systems</li>
+QQ;
+
+$diff = new Text_Diff('native', array(explode("\n", $b), explode("\n", $a)));
+$renderer = new Text_Diff_Renderer_inline();
+$renderer->render($diff);
+
+?>
+--EXPECT--
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug4879.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug4879.phpt
new file mode 100644
index 00000000..5bb657b6
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug4879.phpt
@@ -0,0 +1,30 @@
+--TEST--
+Text_Diff: PEAR Bug #4879 (inline renderer hangs on numbers in input string)
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/inline.php';
+
+$oldtext = <<<EOT
+Common text
+Bob had 1 apple, Alice had 2.
+Bon appetit!
+EOT;
+
+$newtext = <<< EOT
+Common text
+Bob had 10 apples, Alice had 1.
+Bon appetit!
+EOT;
+
+$oldpieces = explode ("\n", $oldtext);
+$newpieces = explode ("\n", $newtext);
+$diff = new Text_Diff('native', array($oldpieces, $newpieces));
+
+$renderer = new Text_Diff_Renderer_inline();
+echo $renderer->render($diff);
+?>
+--EXPECT--
+Common text
+Bob had <del>1 apple,</del><ins>10 apples,</ins> Alice had <del>2.</del><ins>1.</ins>
+Bon appetit!
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug6251.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug6251.phpt
new file mode 100644
index 00000000..86af082c
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug6251.phpt
@@ -0,0 +1,45 @@
+--TEST--
+Text_Diff: PEAR Bug #6251 (too much trailing context)
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/unified.php';
+
+$oldtext = <<<EOT
+
+Original Text
+
+
+
+ss
+ttt
+EOT;
+
+$newtext = <<< EOT
+
+Modified Text
+
+
+
+ss
+ttt
+EOT;
+
+$oldpieces = explode ("\n", $oldtext);
+$newpieces = explode ("\n", $newtext);
+$diff = new Text_Diff('native', array($oldpieces, $newpieces));
+
+$renderer = new Text_Diff_Renderer_unified(array('leading_context_lines' => 3, 'trailing_context_lines' => 3));
+
+// We need to use var_dump, as the test runner strips trailing empty lines.
+var_dump($renderer->render($diff));
+?>
+--EXPECT--
+string(54) "@@ -1,5 +1,5 @@
+
+-Original Text
++Modified Text
+
+
+
+"
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug6428.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug6428.phpt
new file mode 100644
index 00000000..9d5b982a
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/pear_bug6428.phpt
@@ -0,0 +1,18 @@
+--TEST--
+Text_Diff: PEAR Bug #6428 (problem with single digits after space)
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/inline.php';
+
+$from = array('Line 1', 'Another line');
+$to = array('Line 1', 'Another line');
+
+$diff = new Text_Diff('native', array($from, $to));
+$renderer = new Text_Diff_Renderer_inline();
+
+echo $renderer->render($diff);
+?>
+--EXPECT--
+Line <del>1</del><ins> 1</ins>
+Another line
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/string.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/string.phpt
new file mode 100644
index 00000000..90011989
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/string.phpt
@@ -0,0 +1,145 @@
+--TEST--
+Text_Diff: Text_Diff_Engine_string test.
+--FILE--
+<?php
+
+require_once 'PEAR.php';
+require_once 'Text/Diff.php';
+
+$unified = file_get_contents(dirname(__FILE__) . '/unified.patch');
+$diff_u = new Text_Diff('string', array($unified));
+echo strtolower(print_r($diff_u, true));
+
+$unified2 = file_get_contents(dirname(__FILE__) . '/unified2.patch');
+$diff_u2 = new Text_Diff('string', array($unified2));
+var_export(is_a($diff_u2->getDiff(), 'PEAR_Error'));
+echo "\n";
+$diff_u2 = new Text_Diff('string', array($unified2, 'unified'));
+echo strtolower(print_r($diff_u2, true));
+
+$context = file_get_contents(dirname(__FILE__) . '/context.patch');
+$diff_c = new Text_Diff('string', array($context));
+echo strtolower(print_r($diff_c, true));
+
+?>
+--EXPECT--
+text_diff object
+(
+ [_edits] => array
+ (
+ [0] => text_diff_op_copy object
+ (
+ [orig] => array
+ (
+ [0] => this line is the same.
+ )
+
+ [final] => array
+ (
+ [0] => this line is the same.
+ )
+
+ )
+
+ [1] => text_diff_op_change object
+ (
+ [orig] => array
+ (
+ [0] => this line is different in 1.txt
+ )
+
+ [final] => array
+ (
+ [0] => this line is different in 2.txt
+ )
+
+ )
+
+ [2] => text_diff_op_copy object
+ (
+ [orig] => array
+ (
+ [0] => this line is the same.
+ )
+
+ [final] => array
+ (
+ [0] => this line is the same.
+ )
+
+ )
+
+ )
+
+)
+true
+text_diff object
+(
+ [_edits] => array
+ (
+ [0] => text_diff_op_change object
+ (
+ [orig] => array
+ (
+ [0] => for the first time in u.s. history number of private contractors and troops are equal
+ )
+
+ [final] => array
+ (
+ [0] => number of private contractors and troops are equal for first time in u.s. history
+ )
+
+ )
+
+ )
+
+)
+text_diff object
+(
+ [_edits] => array
+ (
+ [0] => text_diff_op_copy object
+ (
+ [orig] => array
+ (
+ [0] => this line is the same.
+ )
+
+ [final] => array
+ (
+ [0] => this line is the same.
+ )
+
+ )
+
+ [1] => text_diff_op_change object
+ (
+ [orig] => array
+ (
+ [0] => this line is different in 1.txt
+ )
+
+ [final] => array
+ (
+ [0] => this line is different in 2.txt
+ )
+
+ )
+
+ [2] => text_diff_op_copy object
+ (
+ [orig] => array
+ (
+ [0] => this line is the same.
+ )
+
+ [final] => array
+ (
+ [0] => this line is the same.
+ )
+
+ )
+
+ )
+
+)
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/unified.patch b/vendor/pyrus/tests/Text_Diff/Text/tests/unified.patch
new file mode 100644
index 00000000..b2b3f258
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/unified.patch
@@ -0,0 +1,7 @@
+--- 1.txt 2005-03-21 13:37:59.000000000 +0100
++++ 2.txt 2005-03-21 13:38:00.000000000 +0100
+@@ -1,3 +1,3 @@
+ This line is the same.
+-This line is different in 1.txt
++This line is different in 2.txt
+ This line is the same.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/unified.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/unified.phpt
new file mode 100644
index 00000000..4c279ddd
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/unified.phpt
@@ -0,0 +1,21 @@
+--TEST--
+Text_Diff: Unified renderer
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/unified.php';
+
+$lines1 = file(dirname(__FILE__) . '/1.txt');
+$lines2 = file(dirname(__FILE__) . '/2.txt');
+
+$diff = new Text_Diff('native', array($lines1, $lines2));
+
+$renderer = new Text_Diff_Renderer_unified();
+echo $renderer->render($diff);
+?>
+--EXPECT--
+@@ -1,3 +1,3 @@
+ This line is the same.
+-This line is different in 1.txt
++This line is different in 2.txt
+ This line is the same.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/unified2.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/unified2.phpt
new file mode 100644
index 00000000..303b3290
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/unified2.phpt
@@ -0,0 +1,26 @@
+--TEST--
+Text_Diff: Unified renderer 2
+--FILE--
+<?php
+include_once 'Text/Diff.php';
+include_once 'Text/Diff/Renderer/unified.php';
+
+$lines1 = file(dirname(__FILE__) . '/5.txt');
+$lines2 = file(dirname(__FILE__) . '/6.txt');
+
+$diff = new Text_Diff('native', array($lines1, $lines2));
+
+$renderer = new Text_Diff_Renderer_unified();
+echo $renderer->render($diff);
+?>
+--EXPECT--
+@@ -1,5 +1,7 @@
+ This is a test.
+ Adding random text to simulate files.
++Inserting a line.
+ Various Content.
+-More Content.
+-Testing diff and renderer.
++Replacing content.
++Testing similarities and renderer.
++Append content.
diff --git a/vendor/pyrus/tests/Text_Diff/Text/tests/xdiff.phpt b/vendor/pyrus/tests/Text_Diff/Text/tests/xdiff.phpt
new file mode 100644
index 00000000..0be5379c
--- /dev/null
+++ b/vendor/pyrus/tests/Text_Diff/Text/tests/xdiff.phpt
@@ -0,0 +1,24 @@
+--TEST--
+Text_Diff: Text_Diff_Engine_xdiff test.
+--SKIPIF--
+<?php if (!extension_loaded('xdiff')) echo 'skip xdiff extension not installed'; ?>
+--FILE--
+<?php
+
+require_once 'PEAR.php';
+require_once 'Text/Diff.php';
+require_once 'Text/Diff/Renderer/unified.php';
+
+$lines1 = file(dirname(__FILE__) . '/1.txt');
+$lines2 = file(dirname(__FILE__) . '/2.txt');
+$diff = new Text_Diff('xdiff', array($lines1, $lines2));
+$renderer = new Text_Diff_Renderer_unified();
+echo $renderer->render($diff);
+
+?>
+--EXPECT--
+@@ -1,3 +1,3 @@
+ This line is the same.
+-This line is different in 1.txt
++This line is different in 2.txt
+ This line is the same.
--
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