From bc0a470157518e5c5873872388280fbd711edc6e Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Fri, 11 Oct 2013 09:15:46 -0400
Subject: [PATCH] Refactor spellchecker class into backend subclasses for better extensibility
---
program/lib/Roundcube/rcube_spellcheck_enchant.php | 164 +++++++++
program/lib/Roundcube/rcube_spellcheck_googie.php | 158 +++++++++
program/lib/Roundcube/rcube_spellcheck_engine.php | 84 ++++
program/lib/Roundcube/rcube_spellchecker.php | 442 +------------------------
program/lib/Roundcube/rcube_spellcheck_pspell.php | 160 +++++++++
5 files changed, 591 insertions(+), 417 deletions(-)
diff --git a/program/lib/Roundcube/rcube_spellcheck_enchant.php b/program/lib/Roundcube/rcube_spellcheck_enchant.php
new file mode 100644
index 0000000..a22251e
--- /dev/null
+++ b/program/lib/Roundcube/rcube_spellcheck_enchant.php
@@ -0,0 +1,164 @@
+<?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 $matches = array();
+
+ /**
+ * Initializes Enchant dictionary
+ */
+ private function init()
+ {
+ if (!$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;
+ }
+
+}
+
diff --git a/program/lib/Roundcube/rcube_spellcheck_engine.php b/program/lib/Roundcube/rcube_spellcheck_engine.php
new file mode 100644
index 0000000..88e10ac
--- /dev/null
+++ b/program/lib/Roundcube/rcube_spellcheck_engine.php
@@ -0,0 +1,84 @@
+<?php
+
+/*
+ +-----------------------------------------------------------------------+
+ | This file is part of the Roundcube Webmail client |
+ | |
+ | Copyright (C) 2011-2013, Kolab Systems AG |
+ | Copyright (C) 2008-2013, 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: |
+ | Interface class for a spell-checking backend |
+ +-----------------------------------------------------------------------+
+ | Author: Thomas Bruederli <roundcube@gmail.com> |
+ +-----------------------------------------------------------------------+
+*/
+
+/**
+ * Interface class for a spell-checking backend
+ *
+ * @package Framework
+ * @subpackage Utils
+ */
+abstract class rcube_spellcheck_engine
+{
+ const MAX_SUGGESTIONS = 10;
+
+ protected $lang;
+ protected $error;
+ protected $dictionary;
+ protected $separator = '/[\s\r\n\t\(\)\/\[\]{}<>\\"]+|[:;?!,\.](?=\W|$)/';
+
+ /**
+ * Default constructor
+ */
+ public function __construct($dict, $lang)
+ {
+ $this->dictionary = $dict;
+ $this->lang = $lang;
+ }
+
+ /**
+ * Set content and check spelling
+ *
+ * @param string $text Text content for spellchecking
+ *
+ * @return bool True when no mispelling found, otherwise false
+ */
+ abstract function check($text);
+
+ /**
+ * Returns suggestions for the specified word
+ *
+ * @param string $word The word
+ *
+ * @return array Suggestions list
+ */
+ abstract function get_suggestions($word);
+
+ /**
+ * Returns misspelled words
+ *
+ * @param string $text The content for spellchecking. If empty content
+ * used for check() method will be used.
+ *
+ * @return array List of misspelled words
+ */
+ abstract function get_words($text = null);
+
+ /**
+ * Returns error message
+ *
+ * @return string Error message
+ */
+ public function error()
+ {
+ return $this->error;
+ }
+
+}
+
diff --git a/program/lib/Roundcube/rcube_spellcheck_googie.php b/program/lib/Roundcube/rcube_spellcheck_googie.php
new file mode 100644
index 0000000..70507dc
--- /dev/null
+++ b/program/lib/Roundcube/rcube_spellcheck_googie.php
@@ -0,0 +1,158 @@
+<?php
+
+/*
+ +-----------------------------------------------------------------------+
+ | This file is part of the Roundcube Webmail client |
+ | |
+ | Copyright (C) 2008-2013, 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 Googiespell |
+ +-----------------------------------------------------------------------+
+ | Author: Aleksander Machniak <machniak@kolabsys.com> |
+ | Author: Thomas Bruederli <roundcube@gmail.com> |
+ +-----------------------------------------------------------------------+
+*/
+
+/**
+ * Spellchecking backend implementation to work with a Googiespell service
+ *
+ * @package Framework
+ * @subpackage Utils
+ */
+class rcube_spellcheck_googie extends rcube_spellcheck_engine
+{
+ const GOOGLE_HOST = 'ssl://www.google.com';
+ const GOOGLE_PORT = 443;
+
+ private $matches = array();
+ private $content;
+
+ /**
+ * Set content and check spelling
+ *
+ * @see rcube_spellcheck_engine::check()
+ */
+ function check($text)
+ {
+ $this->content = $text;
+
+ // spell check uri is configured
+ $url = rcube::get_instance()->config->get('spellcheck_uri');
+
+ if ($url) {
+ $a_uri = parse_url($url);
+ $ssl = ($a_uri['scheme'] == 'https' || $a_uri['scheme'] == 'ssl');
+ $port = $a_uri['port'] ? $a_uri['port'] : ($ssl ? 443 : 80);
+ $host = ($ssl ? 'ssl://' : '') . $a_uri['host'];
+ $path = $a_uri['path'] . ($a_uri['query'] ? '?'.$a_uri['query'] : '') . $this->lang;
+ }
+ else {
+ $host = self::GOOGLE_HOST;
+ $port = self::GOOGLE_PORT;
+ $path = '/tbproxy/spell?lang=' . $this->lang;
+ }
+
+ // Google has some problem with spaces, use \n instead
+ $gtext = str_replace(' ', "\n", $text);
+
+ $gtext = '<?xml version="1.0" encoding="utf-8" ?>'
+ .'<spellrequest textalreadyclipped="0" ignoredups="0" ignoredigits="1" ignoreallcaps="1">'
+ .'<text>' . $gtext . '</text>'
+ .'</spellrequest>';
+
+ $store = '';
+ if ($fp = fsockopen($host, $port, $errno, $errstr, 30)) {
+ $out = "POST $path HTTP/1.0\r\n";
+ $out .= "Host: " . str_replace('ssl://', '', $host) . "\r\n";
+ $out .= "Content-Length: " . strlen($gtext) . "\r\n";
+ $out .= "Content-Type: application/x-www-form-urlencoded\r\n";
+ $out .= "Connection: Close\r\n\r\n";
+ $out .= $gtext;
+ fwrite($fp, $out);
+
+ while (!feof($fp))
+ $store .= fgets($fp, 128);
+ fclose($fp);
+ }
+
+ // parse HTTP response
+ if (preg_match('!^HTTP/1.\d (\d+)(.+)!', $store, $m)) {
+ $http_status = $m[1];
+ if ($http_status != '200')
+ $this->error = 'HTTP ' . $m[1] . $m[2];
+ }
+
+ if (!$store) {
+ $this->error = "Empty result from spelling engine";
+ }
+ else if (preg_match('/<spellresult error="([^"]+)"/', $store, $m) && $m[1]) {
+ $this->error = "Error code $m[1] returned";
+ }
+
+ preg_match_all('/<c o="([^"]*)" l="([^"]*)" s="([^"]*)">([^<]*)<\/c>/', $store, $matches, PREG_SET_ORDER);
+
+ // skip exceptions (if appropriate options are enabled)
+ foreach ($matches as $idx => $m) {
+ $word = mb_substr($text, $m[1], $m[2], RCUBE_CHARSET);
+ // skip exceptions
+ if ($this->dictionary->is_exception($word)) {
+ unset($matches[$idx]);
+ }
+ }
+
+ $this->matches = $matches;
+ return $matches;
+ }
+
+ /**
+ * Returns suggestions for the specified word
+ *
+ * @see rcube_spellcheck_engine::get_words()
+ */
+ function get_suggestions($word)
+ {
+ $matches = $word ? $this->check($word) : $this->matches;
+
+ if ($matches[0][4]) {
+ $suggestions = explode("\t", $matches[0][4]);
+ if (sizeof($suggestions) > self::MAX_SUGGESTIONS) {
+ $suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS);
+ }
+
+ return $suggestions;
+ }
+
+ return array();
+ }
+
+ /**
+ * Returns misspelled words
+ *
+ * @see rcube_spellcheck_engine::get_suggestions()
+ */
+ function get_words($text = null)
+ {
+ if ($text) {
+ $matches = $this->check($text);
+ }
+ else {
+ $matches = $this->matches;
+ $text = $this->content;
+ }
+
+ $result = array();
+
+ foreach ($matches as $m) {
+ $result[] = mb_substr($text, $m[1], $m[2], RCUBE_CHARSET);
+ }
+
+ return $result;
+ }
+
+}
+
diff --git a/program/lib/Roundcube/rcube_spellcheck_pspell.php b/program/lib/Roundcube/rcube_spellcheck_pspell.php
new file mode 100644
index 0000000..ce089ed
--- /dev/null
+++ b/program/lib/Roundcube/rcube_spellcheck_pspell.php
@@ -0,0 +1,160 @@
+<?php
+
+/*
+ +-----------------------------------------------------------------------+
+ | This file is part of the Roundcube Webmail client |
+ | |
+ | Copyright (C) 2008-2013, 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 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_spellcheck_pspell extends rcube_spellcheck_engine
+{
+ private $plink;
+ private $matches = array();
+
+ /**
+ * Initializes PSpell dictionary
+ */
+ private function init()
+ {
+ if (!$this->plink) {
+ if (!extension_loaded('pspell')) {
+ $this->error = "Pspell extension not available";
+ return;
+ }
+
+ $this->plink = pspell_new($this->lang, null, null, RCUBE_CHARSET, PSPELL_FAST);
+ }
+
+ if (!$this->plink) {
+ $this->error = "Unable to load Pspell engine for selected language";
+ }
+ }
+
+ /**
+ * Set content and check spelling
+ *
+ * @see rcube_spellcheck_engine::check()
+ */
+ function check($text)
+ {
+ $this->init();
+
+ if (!$this->plink) {
+ 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 (!pspell_check($this->plink, $word)) {
+ $suggestions = pspell_suggest($this->plink, $word);
+
+ if (sizeof($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->plink) {
+ return array();
+ }
+
+ $suggestions = pspell_suggest($this->plink, $word);
+
+ if (sizeof($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->plink) {
+ return array();
+ }
+
+ // With PSpell 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 (!pspell_check($this->plink, $word)) {
+ $result[] = $word;
+ }
+ }
+
+ return $result;
+ }
+
+ foreach ($this->matches as $m) {
+ $result[] = $m[0];
+ }
+
+ return $result;
+ }
+
+}
+
diff --git a/program/lib/Roundcube/rcube_spellchecker.php b/program/lib/Roundcube/rcube_spellchecker.php
index df43652..31835db 100644
--- a/program/lib/Roundcube/rcube_spellchecker.php
+++ b/program/lib/Roundcube/rcube_spellchecker.php
@@ -3,8 +3,8 @@
/*
+-----------------------------------------------------------------------+
| This file is part of the Roundcube Webmail client |
- | Copyright (C) 2011, Kolab Systems AG |
- | Copyright (C) 2008-2011, The Roundcube Dev Team |
+ | Copyright (C) 2011-2013, Kolab Systems AG |
+ | Copyright (C) 2008-2013, The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
@@ -28,19 +28,13 @@
{
private $matches = array();
private $engine;
+ private $backend;
private $lang;
private $rc;
private $error;
- private $separator = '/[\s\r\n\t\(\)\/\[\]{}<>\\"]+|[:;?!,\.](?=\W|$)/';
private $options = array();
private $dict;
private $have_dict;
-
-
- // default settings
- const GOOGLE_HOST = 'ssl://www.google.com';
- const GOOGLE_PORT = 443;
- const MAX_SUGGESTIONS = 10;
/**
@@ -60,6 +54,15 @@
'ignore_caps' => $this->rc->config->get('spellcheck_ignore_caps'),
'dictionary' => $this->rc->config->get('spellcheck_dictionary'),
);
+
+ $cls = 'rcube_spellcheck_' . $this->engine;
+ if (class_exists($cls)) {
+ $this->backend = new $cls($this, $this->lang);
+ $this->backend->options = $this->options;
+ }
+ else {
+ $this->error = "Unknown spellcheck engine '$this->engine'";
+ }
}
@@ -81,14 +84,8 @@
$this->content = $text;
}
- if ($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);
+ if ($this->backend) {
+ $this->matches = $this->backend->check($this->content);
}
return $this->found() == 0;
@@ -115,14 +112,11 @@
*/
function get_suggestions($word)
{
- if ($this->engine == 'pspell') {
- return $this->_pspell_suggestions($word);
- }
- else if ($this->engine == 'enchant') {
- return $this->_enchant_suggestions($word);
+ if ($this->backend) {
+ return $this->backend->get_suggestions($word);
}
- return $this->_googie_suggestions($word);
+ return array();
}
@@ -136,14 +130,15 @@
*/
function get_words($text = null, $is_html=false)
{
- if ($this->engine == 'pspell') {
- return $this->_pspell_words($text, $is_html);
- }
- else if ($this->engine == 'enchant') {
- return $this->_enchant_words($text, $is_html);
+ if ($is_html) {
+ $text = $this->html2text($text);
}
- return $this->_googie_words($text, $is_html);
+ if ($this->backend) {
+ return $this->backend->get_words($text);
+ }
+
+ return array();
}
@@ -199,394 +194,7 @@
*/
function error()
{
- return $this->error;
- }
-
-
- /**
- * Checks the text using pspell
- *
- * @param string $text Text content for spellchecking
- */
- private function _pspell_check($text)
- {
- // init spellchecker
- $this->_pspell_init();
-
- if (!$this->plink) {
- 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 (!pspell_check($this->plink, $word)) {
- $suggestions = pspell_suggest($this->plink, $word);
-
- if (sizeof($suggestions) > self::MAX_SUGGESTIONS) {
- $suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS);
- }
-
- $matches[] = array($word, $pos, $len, null, $suggestions);
- }
-
- $diff += (strlen($word) - $len);
- }
-
- return $matches;
- }
-
-
- /**
- * Returns the misspelled words
- */
- private function _pspell_words($text = null, $is_html=false)
- {
- $result = array();
-
- if ($text) {
- // init spellchecker
- $this->_pspell_init();
-
- if (!$this->plink) {
- return array();
- }
-
- // With PSpell 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 (!pspell_check($this->plink, $word)) {
- $result[] = $word;
- }
- }
-
- return $result;
- }
-
- foreach ($this->matches as $m) {
- $result[] = $m[0];
- }
-
- return $result;
- }
-
-
- /**
- * Returns suggestions for misspelled word
- */
- private function _pspell_suggestions($word)
- {
- // init spellchecker
- $this->_pspell_init();
-
- if (!$this->plink) {
- return array();
- }
-
- $suggestions = pspell_suggest($this->plink, $word);
-
- if (sizeof($suggestions) > self::MAX_SUGGESTIONS)
- $suggestions = array_slice($suggestions, 0, self::MAX_SUGGESTIONS);
-
- return is_array($suggestions) ? $suggestions : array();
- }
-
-
- /**
- * Initializes PSpell dictionary
- */
- private function _pspell_init()
- {
- if (!$this->plink) {
- if (!extension_loaded('pspell')) {
- $this->error = "Pspell extension not available";
- return;
- }
-
- $this->plink = pspell_new($this->lang, null, null, RCUBE_CHARSET, PSPELL_FAST);
- }
-
- if (!$this->plink) {
- $this->error = "Unable to load Pspell engine for selected language";
- }
- }
-
-
- /**
- * 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
- $url = $this->rc->config->get('spellcheck_uri');
-
- if ($url) {
- $a_uri = parse_url($url);
- $ssl = ($a_uri['scheme'] == 'https' || $a_uri['scheme'] == 'ssl');
- $port = $a_uri['port'] ? $a_uri['port'] : ($ssl ? 443 : 80);
- $host = ($ssl ? 'ssl://' : '') . $a_uri['host'];
- $path = $a_uri['path'] . ($a_uri['query'] ? '?'.$a_uri['query'] : '') . $this->lang;
- }
- else {
- $host = self::GOOGLE_HOST;
- $port = self::GOOGLE_PORT;
- $path = '/tbproxy/spell?lang=' . $this->lang;
- }
-
- // Google has some problem with spaces, use \n instead
- $gtext = str_replace(' ', "\n", $text);
-
- $gtext = '<?xml version="1.0" encoding="utf-8" ?>'
- .'<spellrequest textalreadyclipped="0" ignoredups="0" ignoredigits="1" ignoreallcaps="1">'
- .'<text>' . $gtext . '</text>'
- .'</spellrequest>';
-
- $store = '';
- if ($fp = fsockopen($host, $port, $errno, $errstr, 30)) {
- $out = "POST $path HTTP/1.0\r\n";
- $out .= "Host: " . str_replace('ssl://', '', $host) . "\r\n";
- $out .= "Content-Length: " . strlen($gtext) . "\r\n";
- $out .= "Content-Type: application/x-www-form-urlencoded\r\n";
- $out .= "Connection: Close\r\n\r\n";
- $out .= $gtext;
- fwrite($fp, $out);
-
- while (!feof($fp))
- $store .= fgets($fp, 128);
- fclose($fp);
- }
-
- // parse HTTP response
- if (preg_match('!^HTTP/1.\d (\d+)(.+)!', $store, $m)) {
- $http_status = $m[1];
- if ($http_status != '200')
- $this->error = 'HTTP ' . $m[1] . $m[2];
- }
-
- if (!$store) {
- $this->error = "Empty result from spelling engine";
- }
- else if (preg_match('/<spellresult error="([^"]+)"/', $store, $m) && $m[1]) {
- $this->error = "Error code $m[1] returned";
- }
-
- preg_match_all('/<c o="([^"]*)" l="([^"]*)" s="([^"]*)">([^<]*)<\/c>/', $store, $matches, PREG_SET_ORDER);
-
- // skip exceptions (if appropriate options are enabled)
- if (!empty($this->options['ignore_syms']) || !empty($this->options['ignore_nums'])
- || !empty($this->options['ignore_caps']) || !empty($this->options['dictionary'])
- ) {
- foreach ($matches as $idx => $m) {
- $word = mb_substr($text, $m[1], $m[2], RCUBE_CHARSET);
- // skip exceptions
- if ($this->is_exception($word)) {
- unset($matches[$idx]);
- }
- }
- }
-
- return $matches;
- }
-
-
- private function _googie_words($text = null, $is_html=false)
- {
- if ($text) {
- if ($is_html) {
- $text = $this->html2text($text);
- }
-
- $matches = $this->_googie_check($text);
- }
- else {
- $matches = $this->matches;
- $text = $this->content;
- }
-
- $result = array();
-
- foreach ($matches as $m) {
- $result[] = mb_substr($text, $m[1], $m[2], RCUBE_CHARSET);
- }
-
- return $result;
- }
-
-
- private function _googie_suggestions($word)
- {
- if ($word) {
- $matches = $this->_googie_check($word);
- }
- else {
- $matches = $this->matches;
- }
-
- if ($matches[0][4]) {
- $suggestions = explode("\t", $matches[0][4]);
- if (sizeof($suggestions) > self::MAX_SUGGESTIONS) {
- $suggestions = array_slice($suggestions, 0, MAX_SUGGESTIONS);
- }
-
- return $suggestions;
- }
-
- return array();
+ return $this->error ? $this->error : ($this->backend ? $this->backend->error() : false);
}
--
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