shell.php
<?php
/**
* Class used internally by Diff to actually compute the diffs.
*
* This class uses the Unix <code>diff</code> program via shell_exec to compute the
* differences between the two input arrays.
*
* Copyright 2007-2010 The Horde Project (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you did
* not receive this file, see http://opensource.org/licenses/lgpl-license.php.
*
* @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;
}
}
File PSpellShell.php
<?php
/**
* $Id: editor_plugin_src.js 201 2007-02-12 15:56:56Z spocke $
*
* @package MCManager.includes
* @author Moxiecode
* @copyright Copyright © 2004-2007, Moxiecode Systems AB, All rights reserved.
*/
class PSpellShell extends SpellChecker {
/**
* Spellchecks an array of words.
*
* @param {String} $lang Language code like sv or en.
* @param {Array} $words Array of words to spellcheck.
* @return {Array} Array of misspelled words.
*/
function &checkWords($lang, $words) {
$cmd = $this->_getCMD($lang);
if ($fh = fopen($this->_tmpfile, "w")) {
fwrite($fh, "!\n");
foreach($words as $key => $value)
fwrite($fh, "^" . $value . "\n");
fclose($fh);
} else
$this->throwError("PSpell support was not found.");
$data = shell_exec($cmd);
@unlink($this->_tmpfile);
$returnData = array();
$dataArr = preg_split("/[\r\n]/", $data, -1, PREG_SPLIT_NO_EMPTY);
foreach ($dataArr as $dstr) {
$matches = array();
// Skip this line.
if (strpos($dstr, "@") === 0)
continue;
preg_match("/\& ([^ ]+) .*/i", $dstr, $matches);
if (!empty($matches[1]))
$returnData[] = utf8_encode(trim($matches[1]));
}
return $returnData;
}
/**
* Returns suggestions of for a specific word.
*
* @param {String} $lang Language code like sv or en.
* @param {String} $word Specific word to get suggestions for.
* @return {Array} Array of suggestions for the specified word.
*/
function &getSuggestions($lang, $word) {
$cmd = $this->_getCMD($lang);
if (function_exists("mb_convert_encoding"))
$word = mb_convert_encoding($word, "ISO-8859-1", mb_detect_encoding($word, "UTF-8"));
else
$word = utf8_encode($word);
if ($fh = fopen($this->_tmpfile, "w")) {
fwrite($fh, "!\n");
fwrite($fh, "^$word\n");
fclose($fh);
} else
$this->throwError("Error opening tmp file.");
$data = shell_exec($cmd);
@unlink($this->_tmpfile);
$returnData = array();
$dataArr = preg_split("/\n/", $data, -1, PREG_SPLIT_NO_EMPTY);
foreach($dataArr as $dstr) {
$matches = array();
// Skip this line.
if (strpos($dstr, "@") === 0)
continue;
preg_match("/\&[^:]+:(.*)/i", $dstr, $matches);
if (!empty($matches[1])) {
$words = array_slice(explode(',', $matches[1]), 0, 10);
for ($i=0; $i<count($words); $i++)
$words[$i] = trim($words[$i]);
return $words;
}
}
return array();
}
function _getCMD($lang) {
$this->_tmpfile = tempnam($this->_config['PSpellShell.tmp'], "tinyspell");
if(preg_match("#win#i", php_uname()))
return $this->_config['PSpellShell.aspell'] . " -a --lang=". escapeshellarg($lang) . " --encoding=utf-8 -H < " . $this->_tmpfile . " 2>&1";
return "cat ". $this->_tmpfile ." | " . $this->_config['PSpellShell.aspell'] . " -a --encoding=utf-8 -H --lang=". escapeshellarg($lang);
}
}
?>
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