diff options
Diffstat (limited to 'program/lib/Roundcube/rcube_spellcheck_enchant.php')
| -rw-r--r-- | program/lib/Roundcube/rcube_spellcheck_enchant.php | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/program/lib/Roundcube/rcube_spellcheck_enchant.php b/program/lib/Roundcube/rcube_spellcheck_enchant.php new file mode 100644 index 000000000..14d6fff46 --- /dev/null +++ b/program/lib/Roundcube/rcube_spellcheck_enchant.php @@ -0,0 +1,182 @@ +<?php + +/* + +-----------------------------------------------------------------------+ + | This file is part of the Roundcube Webmail client | + | | + | Copyright (C) 2011-2013, Kolab Systems AG | + | Copyright (C) 20011-2013, The Roundcube Dev Team | + | | + | Licensed under the GNU General Public License version 3 or | + | any later version with exceptions for skins & plugins. | + | See the README file for a full license statement. | + | | + | PURPOSE: | + | Spellchecking backend implementation to work with Enchant | + +-----------------------------------------------------------------------+ + | Author: Aleksander Machniak <machniak@kolabsys.com> | + +-----------------------------------------------------------------------+ +*/ + +/** + * Spellchecking backend implementation to work with Pspell + * + * @package Framework + * @subpackage Utils + */ +class rcube_spellcheck_enchant extends rcube_spellcheck_engine +{ + private $enchant_broker; + private $enchant_dictionary; + private $matches = array(); + + /** + * Return a list of languages supported by this backend + * + * @see rcube_spellcheck_engine::languages() + */ + function languages() + { + $this->init(); + + $langs = array(); + $dicts = enchant_broker_list_dicts($this->enchant_broker); + foreach ($dicts as $dict) { + $langs[] = preg_replace('/-.*$/', '', $dict['lang_tag']); + } + + return array_unique($langs); + } + + /** + * Initializes Enchant dictionary + */ + private function init() + { + if (!$this->enchant_broker) { + if (!extension_loaded('enchant')) { + $this->error = "Enchant extension not available"; + return; + } + + $this->enchant_broker = enchant_broker_init(); + } + + if (!enchant_broker_dict_exists($this->enchant_broker, $this->lang)) { + $this->error = "Unable to load dictionary for selected language using Enchant"; + return; + } + + $this->enchant_dictionary = enchant_broker_request_dict($this->enchant_broker, $this->lang); + } + + /** + * Set content and check spelling + * + * @see rcube_spellcheck_engine::check() + */ + function check($text) + { + $this->init(); + + if (!$this->enchant_dictionary) { + return array(); + } + + // tokenize + $text = preg_split($this->separator, $text, NULL, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE); + + $diff = 0; + $matches = array(); + + foreach ($text as $w) { + $word = trim($w[0]); + $pos = $w[1] - $diff; + $len = mb_strlen($word); + + // skip exceptions + if ($this->dictionary->is_exception($word)) { + } + else if (!enchant_dict_check($this->enchant_dictionary, $word)) { + $suggestions = enchant_dict_suggest($this->enchant_dictionary, $word); + + if (sizeof($suggestions) > self::MAX_SUGGESTIONS) { + $suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS); + } + + $matches[] = array($word, $pos, $len, null, $suggestions); + } + + $diff += (strlen($word) - $len); + } + + $this->matches = $matches; + return $matches; + } + + /** + * Returns suggestions for the specified word + * + * @see rcube_spellcheck_engine::get_words() + */ + function get_suggestions($word) + { + $this->init(); + + if (!$this->enchant_dictionary) { + return array(); + } + + $suggestions = enchant_dict_suggest($this->enchant_dictionary, $word); + + if (sizeof($suggestions) > self::MAX_SUGGESTIONS) + $suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS); + + return is_array($suggestions) ? $suggestions : array(); + } + + /** + * Returns misspelled words + * + * @see rcube_spellcheck_engine::get_suggestions() + */ + function get_words($text = null) + { + $result = array(); + + if ($text) { + // init spellchecker + $this->init(); + + if (!$this->enchant_dictionary) { + return array(); + } + + // With Enchant we don't need to get suggestions to return misspelled words + $text = preg_split($this->separator, $text, NULL, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE); + + foreach ($text as $w) { + $word = trim($w[0]); + + // skip exceptions + if ($this->dictionary->is_exception($word)) { + continue; + } + + if (!enchant_dict_check($this->enchant_dictionary, $word)) { + $result[] = $word; + } + } + + return $result; + } + + foreach ($this->matches as $m) { + $result[] = $m[0]; + } + + return $result; + } + +} + |