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<?php
/**
* Copyright 2005-2013 Horde LLC (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.horde.org/licenses/lgpl21.
*
* @category Horde
* @copyright 2005-2013 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package SpellChecker
*/
/**
* A spellcheck driver for the aspell/ispell binary.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @author Michael Slusarz <slusarz@horde.org>
* @category Horde
* @copyright 2005-2013 Horde LLC
* @license http://www.horde.org/licenses/lgpl21 LGPL 2.1
* @package SpellChecker
*/
class Horde_SpellChecker_Aspell extends Horde_SpellChecker
{
/**
* @param array $args Additional arguments:
* - path: (string) Path to the aspell binary.
*/
public function __construct(array $args = array())
{
parent::__construct(array_merge(array(
'path' => 'aspell'
), $args));
}
/**
*/
public function spellCheck($text)
{
$ret = array(
'bad' => array(),
'suggestions' => array()
);
if ($this->_params['html']) {
$input = strtr($text, "\n", ' ');
} else {
$words = $this->_getWords($text);
if (!count($words)) {
return $ret;
}
$input = implode(' ', $words);
}
// Descriptor array.
$descspec = array(
0 => array('pipe', 'r'),
1 => array('pipe', 'w'),
2 => array('pipe', 'w')
);
$process = proc_open($this->_cmd(), $descspec, $pipes);
if (!is_resource($process)) {
throw new Horde_SpellChecker_Exception('Spellcheck failed. Command line: ' . $this->_cmd());
}
// The '^' character tells aspell to spell check the entire line.
fwrite($pipes[0], '^' . $input);
fclose($pipes[0]);
// Read stdout.
$out = '';
while (!feof($pipes[1])) {
$out .= fread($pipes[1], 8192);
}
fclose($pipes[1]);
// Read stderr.
$err = '';
while (!feof($pipes[2])) {
$err .= fread($pipes[2], 8192);
}
fclose($pipes[2]);
// We can't rely on the return value of proc_close:
// http://bugs.php.net/bug.php?id=29123
proc_close($process);
if (strlen($out) === 0) {
throw new Horde_SpellChecker_Exception('Spellcheck failed. Command line: ' . $this->_cmd());
}
// Parse output.
foreach (array_map('trim', explode("\n", $out)) as $line) {
if (!strlen($line)) {
continue;
}
@list(,$word,) = explode(' ', $line, 3);
if ($this->_inLocalDictionary($word) ||
in_array($word, $ret['bad'])) {
continue;
}
switch ($line[0]) {
case '#':
// Misspelling with no suggestions.
$ret['bad'][] = $word;
$ret['suggestions'][] = array();
break;
case '&':
// Suggestions.
$ret['bad'][] = $word;
$ret['suggestions'][] = array_slice(explode(', ', substr($line, strpos($line, ':') + 2)), 0, $this->_params['maxSuggestions']);
break;
}
}
return $ret;
}
/**
* Create the command line string.
*
* @return string The command to run.
*/
protected function _cmd()
{
$args = array('-a', '--encoding=UTF-8');
switch ($this->_params['suggestMode']) {
case self::SUGGEST_FAST:
$args[] = '--sug-mode=fast';
break;
case self::SUGGEST_SLOW:
$args[] = '--sug-mode=bad-spellers';
break;
default:
$args[] = '--sug-mode=normal';
}
$args[] = '--lang=' . escapeshellarg($this->_params['locale']);
$args[] = '--ignore=' . escapeshellarg(max($this->_params['minLength'] - 1, 0));
if ($this->_params['html']) {
$args[] = '-H';
$args[] = '--rem-html-check=alt';
}
return escapeshellcmd($this->_params['path']) . ' ' .
implode(' ', $args);
}
}
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