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authorMichel Weimerskirch <michel@weimerskirch.net>2013-07-07 10:21:55 +0200
committerMichel Weimerskirch <michel@weimerskirch.net>2013-07-07 10:21:55 +0200
commitf99aa1230047c26f108127548c7b4d38ce52fe8f (patch)
tree353d72d2babb8e288fd782e37ff923ae0c62d823
parent4c8becbdc05410ba39503c2a1896d0c5cb521394 (diff)
Added support for the enchant spell checking engine
-rw-r--r--program/lib/Roundcube/rcube_spellchecker.php144
1 files changed, 144 insertions, 0 deletions
diff --git a/program/lib/Roundcube/rcube_spellchecker.php b/program/lib/Roundcube/rcube_spellchecker.php
index 166de9bfb..df4365223 100644
--- a/program/lib/Roundcube/rcube_spellchecker.php
+++ b/program/lib/Roundcube/rcube_spellchecker.php
@@ -84,6 +84,9 @@ class rcube_spellchecker
if ($this->engine == 'pspell') {
$this->matches = $this->_pspell_check($this->content);
}
+ else if ($this->engine == 'enchant') {
+ $this->matches = $this->_enchant_check($this->content);
+ }
else {
$this->matches = $this->_googie_check($this->content);
}
@@ -115,6 +118,9 @@ class rcube_spellchecker
if ($this->engine == 'pspell') {
return $this->_pspell_suggestions($word);
}
+ else if ($this->engine == 'enchant') {
+ return $this->_enchant_suggestions($word);
+ }
return $this->_googie_suggestions($word);
}
@@ -133,6 +139,9 @@ class rcube_spellchecker
if ($this->engine == 'pspell') {
return $this->_pspell_words($text, $is_html);
}
+ else if ($this->engine == 'enchant') {
+ return $this->_enchant_words($text, $is_html);
+ }
return $this->_googie_words($text, $is_html);
}
@@ -326,6 +335,141 @@ class rcube_spellchecker
}
+ /**
+ * Checks the text using enchant
+ *
+ * @param string $text Text content for spellchecking
+ */
+ private function _enchant_check($text)
+ {
+ // init spellchecker
+ $this->_enchant_init();
+
+ if (!$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 ($this->is_exception($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);
+ }
+
+ return $matches;
+ }
+
+
+ /**
+ * Returns the misspelled words
+ */
+ private function _enchant_words($text = null, $is_html=false)
+ {
+ $result = array();
+
+ if ($text) {
+ // init spellchecker
+ $this->_enchant_init();
+
+ if (!$this->enchant_dictionary) {
+ return array();
+ }
+
+ // With Enchant we don't need to get suggestions to return misspelled words
+ if ($is_html) {
+ $text = $this->html2text($text);
+ }
+
+ $text = preg_split($this->separator, $text, NULL, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE);
+
+ foreach ($text as $w) {
+ $word = trim($w[0]);
+
+ // skip exceptions
+ if ($this->is_exception($word)) {
+ continue;
+ }
+
+ if (!enchant_dict_check($this->enchant_dictionary, $word)) {
+ $result[] = $word;
+ }
+ }
+
+ return $result;
+ }
+
+ foreach ($this->matches as $m) {
+ $result[] = $m[0];
+ }
+
+ return $result;
+ }
+
+
+ /**
+ * Returns suggestions for misspelled word
+ */
+ private function _enchant_suggestions($word)
+ {
+ // init spellchecker
+ $this->_enchant_init();
+
+ if (!$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) ? $suggestions : array();
+ }
+
+
+ /**
+ * Initializes PSpell dictionary
+ */
+ private function _enchant_init()
+ {
+ if (!$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, $this->lang);
+ }
+
+
private function _googie_check($text)
{
// spell check uri is configured