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<?php
/**
* The SpellChecker_aspell:: class provides a driver for the 'aspell' program.
*
* $Horde: imp/lib/SpellChecker/aspell.php,v 1.5.2.7 2008/05/08 06:48:08 slusarz Exp $
*
* Copyright 2005-2008 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://www.fsf.org/copyleft/lgpl.html.
*
* @author Chuck Hagenbuch <chuck@horde.org>
* @package IMP_SpellChecker
*/
class IMP_SpellChecker_aspell extends IMP_SpellChecker {
var $_path = 'aspell';
/**
*
*/
function spellCheck($text)
{
if ($this->_html) {
$input = $text;
} else {
$words = $this->_getWords($text);
if (!count($words)) {
return array('bad' => array(), 'suggestions' => array());
}
$input = implode(' ', $words);
}
$charset = NLS::getCharset();
// 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)) {
require_once 'PEAR.php';
return PEAR::raiseError('spellcheck failed', null, null, null,
$this->_cmd());
}
// Write to stdin.
if ($this->_encoding) {
$input = String::convertCharset($input, $charset, $this->_encoding);
}
fwrite($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($out) === 0) {
require_once 'PEAR.php';
if ($this->_encoding) {
$err = String::convertCharset($err, $this->_encoding, $charset);
}
return PEAR::raiseError('spellcheck failed: ' . $err);
}
if ($this->_encoding) {
$out = String::convertCharset($out, $this->_encoding, $charset);
}
// Parse output.
$bad = array();
$suggestions = array();
$lines = explode("\n", $out);
foreach ($lines as $line) {
$line = trim($line);
if (empty($line)) {
continue;
}
@list(,$word,) = explode(' ', $line, 3);
if ($this->_inLocalDictionary($word) || in_array($word, $bad)) {
continue;
}
switch ($line[0]) {
case '#':
// Misspelling with no suggestions.
$bad[] = $word;
$suggestions[] = array();
break;
case '&':
// Suggestions.
$bad[] = $word;
$suggestions[] = array_slice(explode(', ', substr($line, strpos($line, ':') + 2)), 0, $this->_maxSuggestions);
break;
}
}
return array('bad' => $bad, 'suggestions' => $suggestions);
}
function _cmd()
{
$args = '';
switch ($this->_suggestMode) {
case SPELLCHECKER_SUGGEST_FAST:
$args .= ' --sug-mode=fast';
break;
case SPELLCHECKER_SUGGEST_SLOW:
$args .= ' --sug-mode=bad-spellers';
break;
default:
$args .= ' --sug-mode=normal';
}
if ($this->_encoding) {
$args .= ' --encoding=' . escapeshellarg($this->_encoding);
}
$args .= ' --lang=' . escapeshellarg($this->_locale);
if ($this->_html) {
$args .= ' -H';
}
return sprintf('%s -a %s', $this->_path, $args);
}
}
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