| commit | author | age | ||
| bc0a47 | 1 | <?php |
| TB | 2 | |
| 3 | /* | |
| 4 | +-----------------------------------------------------------------------+ | |
| 5 | | This file is part of the Roundcube Webmail client | | |
| 6 | | | | |
| 7 | | Copyright (C) 2011-2013, Kolab Systems AG | | |
| 8 | | Copyright (C) 20011-2013, The Roundcube Dev Team | | |
| 9 | | | | |
| 10 | | Licensed under the GNU General Public License version 3 or | | |
| 11 | | any later version with exceptions for skins & plugins. | | |
| 12 | | See the README file for a full license statement. | | |
| 13 | | | | |
| 14 | | PURPOSE: | | |
| 15 | | Spellchecking backend implementation to work with Enchant | | |
| 16 | +-----------------------------------------------------------------------+ | |
| 17 | | Author: Aleksander Machniak <machniak@kolabsys.com> | | |
| 18 | +-----------------------------------------------------------------------+ | |
| 19 | */ | |
| 20 | ||
| 21 | /** | |
| 22 | * Spellchecking backend implementation to work with Pspell | |
| 23 | * | |
| 24 | * @package Framework | |
| 25 | * @subpackage Utils | |
| 26 | */ | |
| 27 | class rcube_spellcheck_enchant extends rcube_spellcheck_engine | |
| 28 | { | |
| 29 | private $enchant_broker; | |
| 30 | private $enchant_dictionary; | |
| 31 | private $matches = array(); | |
| 32 | ||
| 33 | /** | |
| c344b6 | 34 | * Return a list of languages supported by this backend |
| TB | 35 | * |
| 36 | * @see rcube_spellcheck_engine::languages() | |
| 37 | */ | |
| 38 | function languages() | |
| 39 | { | |
| 40 | $this->init(); | |
| 41 | ||
| 42 | $langs = array(); | |
| 43 | $dicts = enchant_broker_list_dicts($this->enchant_broker); | |
| 44 | foreach ($dicts as $dict) { | |
| 45 | $langs[] = preg_replace('/-.*$/', '', $dict['lang_tag']); | |
| 46 | } | |
| 47 | ||
| 48 | return array_unique($langs); | |
| 49 | } | |
| 50 | ||
| 51 | /** | |
| bc0a47 | 52 | * Initializes Enchant dictionary |
| TB | 53 | */ |
| 54 | private function init() | |
| 55 | { | |
| 56 | if (!$this->enchant_broker) { | |
| 57 | if (!extension_loaded('enchant')) { | |
| 58 | $this->error = "Enchant extension not available"; | |
| 59 | return; | |
| 60 | } | |
| 61 | ||
| 62 | $this->enchant_broker = enchant_broker_init(); | |
| 63 | } | |
| 64 | ||
| 65 | if (!enchant_broker_dict_exists($this->enchant_broker, $this->lang)) { | |
| 66 | $this->error = "Unable to load dictionary for selected language using Enchant"; | |
| 67 | return; | |
| 68 | } | |
| 69 | ||
| 70 | $this->enchant_dictionary = enchant_broker_request_dict($this->enchant_broker, $this->lang); | |
| 71 | } | |
| 72 | ||
| 73 | /** | |
| 74 | * Set content and check spelling | |
| 75 | * | |
| 76 | * @see rcube_spellcheck_engine::check() | |
| 77 | */ | |
| 78 | function check($text) | |
| 79 | { | |
| 80 | $this->init(); | |
| 81 | ||
| 82 | if (!$this->enchant_dictionary) { | |
| 83 | return array(); | |
| 84 | } | |
| 85 | ||
| 86 | // tokenize | |
| 87 | $text = preg_split($this->separator, $text, NULL, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE); | |
| 88 | ||
| 89 | $diff = 0; | |
| 90 | $matches = array(); | |
| 91 | ||
| 92 | foreach ($text as $w) { | |
| 93 | $word = trim($w[0]); | |
| 94 | $pos = $w[1] - $diff; | |
| 95 | $len = mb_strlen($word); | |
| 96 | ||
| 97 | // skip exceptions | |
| 98 | if ($this->dictionary->is_exception($word)) { | |
| 99 | } | |
| 100 | else if (!enchant_dict_check($this->enchant_dictionary, $word)) { | |
| 101 | $suggestions = enchant_dict_suggest($this->enchant_dictionary, $word); | |
| 102 | ||
| 103 | if (sizeof($suggestions) > self::MAX_SUGGESTIONS) { | |
| 104 | $suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS); | |
| 105 | } | |
| 106 | ||
| 107 | $matches[] = array($word, $pos, $len, null, $suggestions); | |
| 108 | } | |
| 109 | ||
| 110 | $diff += (strlen($word) - $len); | |
| 111 | } | |
| 112 | ||
| 113 | $this->matches = $matches; | |
| 114 | return $matches; | |
| 115 | } | |
| 116 | ||
| 117 | /** | |
| 118 | * Returns suggestions for the specified word | |
| 119 | * | |
| 120 | * @see rcube_spellcheck_engine::get_words() | |
| 121 | */ | |
| 122 | function get_suggestions($word) | |
| 123 | { | |
| 124 | $this->init(); | |
| 125 | ||
| 126 | if (!$this->enchant_dictionary) { | |
| 127 | return array(); | |
| 128 | } | |
| 129 | ||
| 130 | $suggestions = enchant_dict_suggest($this->enchant_dictionary, $word); | |
| 131 | ||
| 132 | if (sizeof($suggestions) > self::MAX_SUGGESTIONS) | |
| 133 | $suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS); | |
| 134 | ||
| 135 | return is_array($suggestions) ? $suggestions : array(); | |
| 136 | } | |
| 137 | ||
| 138 | /** | |
| 139 | * Returns misspelled words | |
| 140 | * | |
| 141 | * @see rcube_spellcheck_engine::get_suggestions() | |
| 142 | */ | |
| 143 | function get_words($text = null) | |
| 144 | { | |
| 145 | $result = array(); | |
| 146 | ||
| 147 | if ($text) { | |
| 148 | // init spellchecker | |
| 149 | $this->init(); | |
| 150 | ||
| 151 | if (!$this->enchant_dictionary) { | |
| 152 | return array(); | |
| 153 | } | |
| 154 | ||
| 155 | // With Enchant we don't need to get suggestions to return misspelled words | |
| 156 | $text = preg_split($this->separator, $text, NULL, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE); | |
| 157 | ||
| 158 | foreach ($text as $w) { | |
| 159 | $word = trim($w[0]); | |
| 160 | ||
| 161 | // skip exceptions | |
| 162 | if ($this->dictionary->is_exception($word)) { | |
| 163 | continue; | |
| 164 | } | |
| 165 | ||
| 166 | if (!enchant_dict_check($this->enchant_dictionary, $word)) { | |
| 167 | $result[] = $word; | |
| 168 | } | |
| 169 | } | |
| 170 | ||
| 171 | return $result; | |
| 172 | } | |
| 173 | ||
| 174 | foreach ($this->matches as $m) { | |
| 175 | $result[] = $m[0]; | |
| 176 | } | |
| 177 | ||
| 178 | return $result; | |
| 179 | } | |
| 180 | ||
| 181 | } | |
| 182 | ||
