1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
<?php
/**
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
| |
| Copyright (C) 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 Pspell |
+-----------------------------------------------------------------------+
| Author: Aleksander Machniak <machniak@kolabsys.com> |
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
*/
/**
* Spellchecking backend implementation to work with Pspell
*
* @package Framework
* @subpackage Utils
*/
class rcube_spellchecker_pspell extends rcube_spellchecker_engine
{
private $plink;
private $matches = [];
/**
* Return a list of languages supported by this backend
*
* @see rcube_spellchecker_engine::languages()
*/
function languages()
{
$defaults = ['en'];
$langs = [];
// get aspell dictionaries
exec('aspell dump dicts', $dicts);
if (!empty($dicts)) {
$seen = [];
foreach ($dicts as $lang) {
$lang = preg_replace('/-.*$/', '', $lang);
$langc = strlen($lang) == 2 ? $lang.'_'.strtoupper($lang) : $lang;
if (empty($seen[$langc])) {
$langs[] = $lang;
$seen[$langc] = true;
}
}
$langs = array_unique($langs);
}
else {
$langs = $defaults;
}
return $langs;
}
/**
* Initializes PSpell dictionary
*/
private function init()
{
if (!$this->plink) {
if (!extension_loaded('pspell')) {
$this->error = "Pspell extension not available";
return;
}
$this->plink = pspell_new($this->lang, '', '', RCUBE_CHARSET, PSPELL_FAST);
}
if (!$this->plink) {
$this->error = "Unable to load Pspell engine for selected language";
}
}
/**
* Set content and check spelling
*
* @see rcube_spellchecker_engine::check()
*/
function check($text)
{
$this->init();
if (!$this->plink) {
return [];
}
// tokenize
$text = preg_split($this->separator, $text, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE);
$diff = 0;
$matches = [];
foreach ($text as $w) {
$word = trim($w[0]);
$pos = $w[1] - $diff;
$len = mb_strlen($word);
if ($this->dictionary->is_exception($word)) {
// skip exceptions
}
else if (!pspell_check($this->plink, $word)) {
$suggestions = pspell_suggest($this->plink, $word);
if (count($suggestions) > self::MAX_SUGGESTIONS) {
$suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS);
}
$matches[] = [$word, $pos, $len, null, $suggestions];
}
$diff += (strlen($word) - $len);
}
return $this->matches = $matches;
}
/**
* Returns suggestions for the specified word
*
* @see rcube_spellchecker_engine::get_words()
*/
function get_suggestions($word)
{
$this->init();
if (!$this->plink) {
return [];
}
$suggestions = pspell_suggest($this->plink, $word);
if (count($suggestions) > self::MAX_SUGGESTIONS) {
$suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS);
}
return $suggestions ?: [];
}
/**
* Returns misspelled words
*
* @see rcube_spellchecker_engine::get_suggestions()
*/
function get_words($text = null)
{
$result = [];
if ($text) {
// init spellchecker
$this->init();
if (!$this->plink) {
return [];
}
// With PSpell we don't need to get suggestions to return misspelled words
$text = preg_split($this->separator, $text, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE);
foreach ($text as $w) {
$word = trim($w[0]);
// skip exceptions
if ($this->dictionary->is_exception($word)) {
continue;
}
if (!pspell_check($this->plink, $word)) {
$result[] = $word;
}
}
return $result;
}
foreach ($this->matches as $m) {
$result[] = $m[0];
}
return $result;
}
}
|
