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updated pear LangDetect to version 1.0.0
This commit is contained in:
parent
2bf6b15833
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17 changed files with 1407 additions and 270 deletions
157
library/langdet/README.rst
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157
library/langdet/README.rst
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@ -0,0 +1,157 @@
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*******************
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Text_LanguageDetect
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*******************
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PHP library to identify human languages from text samples.
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Returns confidence scores for each.
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Installation
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============
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PEAR
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----
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::
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$ pear install Text_LanguageDetect
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Composer
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--------
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::
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$ composer require pear/text_languagedetect
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Usage
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=====
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Also see the examples in the ``docs/`` directory and
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the `official documentation`__.
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__ http://pear.php.net/package/Text_LanguageDetect/docs
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Language detection
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------------------
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Simple language detection::
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<?php
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require_once 'Text/LanguageDetect.php';
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$text = 'Was wäre, wenn ich Ihnen das jetzt sagen würde?';
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$ld = new Text_LanguageDetect();
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$language = $ld->detectSimple($text);
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echo $language;
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//output: german
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Show the three most probable languages with their confidence score::
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<?php
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require_once 'Text/LanguageDetect.php';
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$text = 'Was wäre, wenn ich Ihnen das jetzt sagen würde?';
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$ld = new Text_LanguageDetect();
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//3 most probable languages
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$results = $ld->detect($text, 3);
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foreach ($results as $language => $confidence) {
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echo $language . ': ' . number_format($confidence, 2) . "\n";
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}
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//output:
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//german: 0.35
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//dutch: 0.25
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//swedish: 0.20
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?>
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Language code
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-------------
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Instead of returning the full language name, ISO 639-2 two and three
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letter codes can be returned::
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<?php
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require_once 'Text/LanguageDetect.php';
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$ld = new Text_LanguageDetect();
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//will output the ISO 639-1 two-letter language code
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// "de"
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$ld->setNameMode(2);
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echo $ld->detectSimple('Das ist ein kleiner Text') . "\n";
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//will output the ISO 639-2 three-letter language code
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// "deu"
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$ld->setNameMode(3);
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echo $ld->detectSimple('Das ist ein kleiner Text') . "\n";
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?>
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Supported languages
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===================
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- albanian
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- arabic
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- azeri
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- bengali
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- bulgarian
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- cebuano
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- croatian
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- czech
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- danish
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- dutch
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- english
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- estonian
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- farsi
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- finnish
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- french
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- german
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- hausa
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- hawaiian
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- hindi
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- hungarian
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- icelandic
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- indonesian
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- italian
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- kazakh
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- kyrgyz
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- latin
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- latvian
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- lithuanian
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- macedonian
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- mongolian
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- nepali
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- norwegian
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- pashto
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- pidgin
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- polish
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- portuguese
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- romanian
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- russian
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- serbian
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- slovak
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- slovene
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- somali
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- spanish
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- swahili
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- swedish
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- tagalog
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- turkish
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- ukrainian
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- urdu
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- uzbek
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- vietnamese
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- welsh
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Links
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=====
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Homepage
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http://pear.php.net/package/Text_LanguageDetect
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Bug tracker
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http://pear.php.net/bugs/search.php?cmd=display&package_name[]=Text_LanguageDetect
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Documentation
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http://pear.php.net/package/Text_LanguageDetect/docs
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Unit test status
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https://travis-ci.org/pear/Text_LanguageDetect
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.. image:: https://travis-ci.org/pear/Text_LanguageDetect.svg?branch=master
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:target: https://travis-ci.org/pear/Text_LanguageDetect
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@ -1,4 +1,20 @@
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<?php
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/**
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* Part of Text_LanguageDetect
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*
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* PHP version 5
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*
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* @category Text
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* @package Text_LanguageDetect
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* @author Nicholas Pisarro <infinityminusnine+pear@gmail.com>
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* @copyright 2005-2006 Nicholas Pisarro
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* @license BSD http://www.opensource.org/licenses/bsd-license.php
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* @link http://pear.php.net/package/Text_LanguageDetect/
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*/
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require_once 'Text/LanguageDetect/Exception.php';
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require_once 'Text/LanguageDetect/Parser.php';
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require_once 'Text/LanguageDetect/ISO639.php';
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/**
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* Detects the language of a given piece of text.
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* Implements a version of a technique originally proposed by Cavnar & Trenkle
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* (1994): "N-Gram-Based Text Categorization"
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*
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* PHP version 5
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*
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* @category Text
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* @package Text_LanguageDetect
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* @author Nicholas Pisarro <infinityminusnine+pear@gmail.com>
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* @copyright 2005-2006 Nicholas Pisarro
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* @license http://www.debian.org/misc/bsd.license BSD
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* @version SVN: $Id: LanguageDetect.php 322353 2012-01-16 08:41:43Z cweiske $
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* @link http://pear.php.net/package/Text_LanguageDetect/
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* @link http://langdetect.blogspot.com/
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*/
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require_once 'library/langdet/Text/LanguageDetect/Exception.php';
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require_once 'library/langdet/Text/LanguageDetect/Parser.php';
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require_once 'library/langdet/Text/LanguageDetect/ISO639.php';
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/**
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* Language detection class
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*
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* Requires the langauge model database (lang.dat) that should have
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* Requires the language model database (lang.dat) that should have
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* accompanied this class definition in order to be instantiated.
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*
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* Example usage:
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@ -60,10 +57,9 @@ require_once 'library/langdet/Text/LanguageDetect/ISO639.php';
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* @package Text_LanguageDetect
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* @author Nicholas Pisarro <infinityminusnine+pear@gmail.com>
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* @copyright 2005 Nicholas Pisarro
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* @license http://www.debian.org/misc/bsd.license BSD
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* @license BSD http://www.opensource.org/licenses/bsd-license.php
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* @version Release: @package_version@
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* @link http://pear.php.net/package/Text_LanguageDetect/
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* @todo allow users to generate their own language models
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*/
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class Text_LanguageDetect
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{
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* If this value starts with a slash (/) or a dot (.) the value of
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* $this->_data_dir will be ignored
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*
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* @var string
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* @access private
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* @var string
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*/
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var $_db_filename = 'lang.dat';
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protected $_db_filename = 'lang.dat';
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/**
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* The filename that stores the unicode block definitions
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@ -85,83 +80,74 @@ class Text_LanguageDetect
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* $this->_data_dir will be ignored
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*
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* @var string
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* @access private
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*/
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var $_unicode_db_filename = 'unicode_blocks.dat';
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protected $_unicode_db_filename = 'unicode_blocks.dat';
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/**
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* The data directory
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*
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* Should be set by PEAR installer
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*
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* @var string
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* @access private
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* @var string
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*/
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var $_data_dir = '@data_dir@';
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protected $_data_dir = '@data_dir@';
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/**
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* The trigram data for comparison
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*
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* Will be loaded on start from $this->_db_filename
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*
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* @var array
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* @access private
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*/
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var $_lang_db = array();
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/**
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* stores the map of the trigram data to unicode characters
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*
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* @access private
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* @var array
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*/
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var $_unicode_map;
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protected $_lang_db = array();
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/**
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* Stores the map of the trigram data to unicode characters
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*
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* @var array
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*/
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protected $_unicode_map;
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/**
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* The size of the trigram data arrays
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*
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* @var int
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* @access private
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* @var int
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*/
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var $_threshold = 300;
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protected $_threshold = 300;
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/**
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* the maximum possible score.
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* The maximum possible score.
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*
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* needed for score normalization. Different depending on the
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* Needed for score normalization. Different depending on the
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* perl compatibility setting
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*
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* @access private
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* @var int
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* @see setPerlCompatible()
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* @var int
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* @see setPerlCompatible()
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*/
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var $_max_score = 0;
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protected $_max_score = 0;
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/**
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* Whether or not to simulate perl's Language::Guess exactly
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*
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* @access private
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* @var bool
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* @see setPerlCompatible()
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* @var bool
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* @see setPerlCompatible()
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*/
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var $_perl_compatible = false;
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protected $_perl_compatible = false;
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/**
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* Whether to use the unicode block detection to speed up processing
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*
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* @access private
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* @var bool
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*/
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var $_use_unicode_narrowing = true;
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protected $_use_unicode_narrowing = true;
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/**
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* stores the result of the clustering operation
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* Stores the result of the clustering operation
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*
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* @access private
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* @var array
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* @see clusterLanguages()
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* @var array
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* @see clusterLanguages()
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*/
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var $_clusters;
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protected $_clusters;
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/**
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* Which type of "language names" are accepted and returned:
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@ -170,7 +156,7 @@ class Text_LanguageDetect
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* 2 - 2-letter ISO 639-1 code ("en")
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* 3 - 3-letter ISO 639-2 code ("eng")
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*/
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var $_name_mode = 0;
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protected $_name_mode = 0;
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/**
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* Constructor
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@ -178,7 +164,7 @@ class Text_LanguageDetect
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* Will attempt to load the language database. If it fails, you will get
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* an exception.
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*/
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function __construct()
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public function __construct()
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{
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$data = $this->_readdb($this->_db_filename);
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$this->_checkTrigram($data['trigram']);
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@ -200,9 +186,8 @@ class Text_LanguageDetect
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* @param string $fname File name to load
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*
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* @return string expected path to the language model database
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* @access private
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*/
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function _get_data_loc($fname)
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protected function _get_data_loc($fname)
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{
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if ($fname{0} == '/' || $fname{0} == '.') {
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// if filename starts with a slash, assume it's an absolute pathname
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@ -229,9 +214,8 @@ class Text_LanguageDetect
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*
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* @return array the language model data
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* @throws Text_LanguageDetect_Exception
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* @access private
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*/
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function _readdb($fname)
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protected function _readdb($fname)
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{
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// finds the correct data dir
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$fname = $this->_get_data_loc($fname);
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@ -259,9 +243,8 @@ class Text_LanguageDetect
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* @param array $trigram Trigram data from database
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*
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* @return void
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* @access private
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*/
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function _checkTrigram($trigram)
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protected function _checkTrigram($trigram)
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{
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if (!is_array($trigram)) {
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if (ini_get('magic_quotes_runtime')) {
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@ -353,11 +336,10 @@ class Text_LanguageDetect
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/**
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* Returns the number of languages that this object can detect
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*
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* @access public
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* @return int the number of languages
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* @throws Text_LanguageDetect_Exception
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* @throws Text_LanguageDetect_Exception
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*/
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function getLanguageCount()
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public function getLanguageCount()
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{
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return count($this->_lang_db);
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}
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@ -395,11 +377,10 @@ class Text_LanguageDetect
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/**
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* Returns the list of detectable languages
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*
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* @access public
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* @return array the names of the languages known to this object
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* @throws Text_LanguageDetect_Exception
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* @return array the names of the languages known to this object<<<<<<<
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* @throws Text_LanguageDetect_Exception
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*/
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function getLanguages()
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public function getLanguages()
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{
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return $this->_convertToNameMode(
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array_keys($this->_lang_db)
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@ -437,7 +418,7 @@ class Text_LanguageDetect
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*
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* @return void
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*/
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function setNameMode($name_mode)
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public function setNameMode($name_mode)
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{
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$this->_name_mode = $name_mode;
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}
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|
@ -467,10 +448,9 @@ class Text_LanguageDetect
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* @param string $text text to convert
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*
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* @return array array of trigram frequencies
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* @access private
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* @deprecated Superceded by the Text_LanguageDetect_Parser class
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*/
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function _trigram($text)
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protected function _trigram($text)
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{
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$s = new Text_LanguageDetect_Parser($text);
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$s->prepareTrigram();
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@ -488,9 +468,8 @@ class Text_LanguageDetect
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* @param array $arr array of trigram
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*
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* @return array ranks of trigrams
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* @access protected
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*/
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function _arr_rank($arr)
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protected function _arr_rank($arr)
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{
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// sorts alphabetically first as a standard way of breaking rank ties
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|
@ -518,12 +497,11 @@ class Text_LanguageDetect
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/**
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* Sorts an array by value breaking ties alphabetically
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*
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* @param array &$arr the array to sort
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* @param array $arr the array to sort
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||||
*
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* @return void
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* @access private
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*/
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function _bub_sort(&$arr)
|
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protected function _bub_sort(&$arr)
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{
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// should do the same as this perl statement:
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// sort { $trigrams{$b} == $trigrams{$a}
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|
@ -561,9 +539,8 @@ class Text_LanguageDetect
|
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*
|
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* @return int 1 if $a is greater, -1 if not
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* @see _bub_sort()
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* @access private
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*/
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function _sort_func($a, $b)
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protected function _sort_func($a, $b)
|
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{
|
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// each is actually a key/value pair, so that it can compare using both
|
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list($a_key, $a_value) = $a;
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|
@ -601,9 +578,8 @@ class Text_LanguageDetect
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*
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* @return int the sum of the differences between the ranks of
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* the two trigram sets
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* @access private
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*/
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function _distance($arr1, $arr2)
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protected function _distance($arr1, $arr2)
|
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{
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$sumdist = 0;
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|
@ -634,9 +610,8 @@ class Text_LanguageDetect
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*
|
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* @return float the normalized score
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* @see _distance()
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* @access private
|
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*/
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function _normalize_score($score, $base_count = null)
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protected function _normalize_score($score, $base_count = null)
|
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{
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if ($base_count === null) {
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$base_count = $this->_threshold;
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|
@ -712,7 +687,7 @@ class Text_LanguageDetect
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$sample_obj->setPadStart(!$this->_perl_compatible);
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$sample_obj->analyze();
|
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$trigram_freqs =& $sample_obj->getTrigramRanks();
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$trigram_freqs = $sample_obj->getTrigramRanks();
|
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$trigram_count = count($trigram_freqs);
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if ($trigram_count == 0) {
|
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|
@ -723,7 +698,7 @@ class Text_LanguageDetect
|
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|
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// use unicode block detection to narrow down the possibilities
|
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if ($this->_use_unicode_narrowing) {
|
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$blocks =& $sample_obj->getUnicodeBlocks();
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||||
$blocks = $sample_obj->getUnicodeBlocks();
|
||||
|
||||
if (is_array($blocks)) {
|
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$present_blocks = array_keys($blocks);
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||||
|
@ -975,9 +950,8 @@ class Text_LanguageDetect
|
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*
|
||||
* @return mixed Block name, -1 if it failed
|
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* @see unicodeBlockName()
|
||||
* @access protected
|
||||
*/
|
||||
function _unicode_block_name($unicode, $blocks, $block_count = -1)
|
||||
protected function _unicode_block_name($unicode, $blocks, $block_count = -1)
|
||||
{
|
||||
// for a reference, see
|
||||
// http://www.unicode.org/Public/UNIDATA/Blocks.txt
|
||||
|
@ -1028,9 +1002,8 @@ class Text_LanguageDetect
|
|||
*
|
||||
* @return array the database of unicode block definitions
|
||||
* @throws Text_LanguageDetect_Exception
|
||||
* @access protected
|
||||
*/
|
||||
function _read_unicode_block_db()
|
||||
protected function _read_unicode_block_db()
|
||||
{
|
||||
// since the unicode definitions are always going to be the same,
|
||||
// might as well share the memory for the db with all other instances
|
||||
|
@ -1149,14 +1122,13 @@ class Text_LanguageDetect
|
|||
* Uses a nearest neighbor technique to generate the maximum possible
|
||||
* number of dendograms from the similarity data.
|
||||
*
|
||||
* @access public
|
||||
* @return array language cluster data
|
||||
* @throws Text_LanguageDetect_Exception
|
||||
* @see languageSimilarity()
|
||||
* @deprecated this function will eventually be removed and placed into
|
||||
* @return array language cluster data
|
||||
* @throws Text_LanguageDetect_Exception
|
||||
* @see languageSimilarity()
|
||||
* @deprecated this function will eventually be removed and placed into
|
||||
* the model generation class
|
||||
*/
|
||||
function clusterLanguages()
|
||||
public function clusterLanguages()
|
||||
{
|
||||
// todo: set the maximum number of clusters
|
||||
// return cached result, if any
|
||||
|
@ -1465,7 +1437,7 @@ class Text_LanguageDetect
|
|||
}
|
||||
|
||||
/**
|
||||
* ut8-safe strlen()
|
||||
* UTF8-safe strlen()
|
||||
*
|
||||
* Returns the numbers of characters (not bytes) in a utf8 string
|
||||
*
|
||||
|
@ -1489,10 +1461,9 @@ class Text_LanguageDetect
|
|||
* @param string $char a utf8 (possibly multi-byte) char
|
||||
*
|
||||
* @return int unicode value
|
||||
* @access protected
|
||||
* @link http://en.wikipedia.org/wiki/UTF-8
|
||||
*/
|
||||
function _utf8char2unicode($char)
|
||||
protected function _utf8char2unicode($char)
|
||||
{
|
||||
// strlen() here will actually get the binary length of a single char
|
||||
switch (strlen($char)) {
|
||||
|
@ -1529,20 +1500,19 @@ class Text_LanguageDetect
|
|||
}
|
||||
|
||||
/**
|
||||
* utf8-safe fast character iterator
|
||||
* UTF8-safe fast character iterator
|
||||
*
|
||||
* Will get the next character starting from $counter, which will then be
|
||||
* incremented. If a multi-byte char the bytes will be concatenated and
|
||||
* $counter will be incremeted by the number of bytes in the char.
|
||||
*
|
||||
* @param string $str the string being iterated over
|
||||
* @param int &$counter the iterator, will increment by reference
|
||||
* @param int $counter the iterator, will increment by reference
|
||||
* @param bool $special_convert whether to do special conversions
|
||||
*
|
||||
* @return char the next (possibly multi-byte) char from $counter
|
||||
* @access private
|
||||
*/
|
||||
static function _next_char($str, &$counter, $special_convert = false)
|
||||
protected static function _next_char($str, &$counter, $special_convert = false)
|
||||
{
|
||||
$char = $str{$counter++};
|
||||
$ord = ord($char);
|
||||
|
@ -1634,7 +1604,7 @@ class Text_LanguageDetect
|
|||
*
|
||||
* @return string|array Language name
|
||||
*/
|
||||
function _convertFromNameMode($lang, $convertKey = false)
|
||||
protected function _convertFromNameMode($lang, $convertKey = false)
|
||||
{
|
||||
if ($this->_name_mode == 0) {
|
||||
return $lang;
|
||||
|
@ -1674,7 +1644,7 @@ class Text_LanguageDetect
|
|||
*
|
||||
* @return string|array Language name
|
||||
*/
|
||||
function _convertToNameMode($lang, $convertKey = false)
|
||||
protected function _convertToNameMode($lang, $convertKey = false)
|
||||
{
|
||||
if ($this->_name_mode == 0) {
|
||||
return $lang;
|
||||
|
|
|
@ -1,4 +1,28 @@
|
|||
<?php
|
||||
/**
|
||||
* Part of Text_LanguageDetect
|
||||
*
|
||||
* PHP version 5
|
||||
*
|
||||
* @category Text
|
||||
* @package Text_LanguageDetect
|
||||
* @author Nicholas Pisarro <infinityminusnine+pear@gmail.com>
|
||||
* @license BSD http://www.opensource.org/licenses/bsd-license.php
|
||||
* @link http://pear.php.net/package/Text_LanguageDetect/
|
||||
*/
|
||||
|
||||
/**
|
||||
* Part of the PEAR language detection package
|
||||
*
|
||||
* PHP version 5
|
||||
*
|
||||
* @category Text
|
||||
* @package Text_LanguageDetect
|
||||
* @author Nicholas Pisarro <infinityminusnine+pear@gmail.com>
|
||||
* @license BSD http://www.opensource.org/licenses/bsd-license.php
|
||||
* @link http://pear.php.net/package/Text_LanguageDetect/
|
||||
* @link http://langdetect.blogspot.com/
|
||||
*/
|
||||
class Text_LanguageDetect_Exception extends Exception
|
||||
{
|
||||
/**
|
||||
|
|
|
@ -9,7 +9,6 @@
|
|||
* @author Christian Weiske <cweiske@php.net>
|
||||
* @copyright 2011 Christian Weiske <cweiske@php.net>
|
||||
* @license http://www.debian.org/misc/bsd.license BSD
|
||||
* @version SVN: $Id$
|
||||
* @link http://pear.php.net/package/Text_LanguageDetect/
|
||||
*/
|
||||
|
||||
|
@ -23,7 +22,7 @@
|
|||
* @package Text_LanguageDetect
|
||||
* @author Christian Weiske <cweiske@php.net>
|
||||
* @copyright 2011 Christian Weiske <cweiske@php.net>
|
||||
* @license http://www.debian.org/misc/bsd.license BSD
|
||||
* @license BSD http://www.opensource.org/licenses/bsd-license.php
|
||||
* @link http://www.loc.gov/standards/iso639-2/php/code_list.php
|
||||
*/
|
||||
class Text_LanguageDetect_ISO639
|
||||
|
|
|
@ -1,16 +1,15 @@
|
|||
<?php
|
||||
|
||||
/**
|
||||
* This class represents a text sample to be parsed.
|
||||
* Part of Text_LanguageDetect
|
||||
*
|
||||
* @category Text
|
||||
* @package Text_LanguageDetect
|
||||
* @author Nicholas Pisarro
|
||||
* @copyright 2006
|
||||
* @license BSD
|
||||
* @version CVS: $Id: Parser.php 322327 2012-01-15 17:55:59Z cweiske $
|
||||
* @link http://pear.php.net/package/Text_LanguageDetect/
|
||||
* @link http://langdetect.blogspot.com/
|
||||
* PHP version 5
|
||||
*
|
||||
* @category Text
|
||||
* @package Text_LanguageDetect
|
||||
* @author Nicholas Pisarro <infinityminusnine+pear@gmail.com>
|
||||
* @copyright 2006 Nicholas Pisarro
|
||||
* @license BSD http://www.opensource.org/licenses/bsd-license.php
|
||||
* @link http://pear.php.net/package/Text_LanguageDetect/
|
||||
*/
|
||||
|
||||
/**
|
||||
|
@ -20,99 +19,106 @@
|
|||
* class. After a new profile has been built, the data can be retrieved using
|
||||
* the accessor functions.
|
||||
*
|
||||
* This class is intended to be used by the Text_LanguageDetect class, not
|
||||
* This class is intended to be used by the Text_LanguageDetect class, not
|
||||
* end-users.
|
||||
*
|
||||
* @category Text
|
||||
* @package Text_LanguageDetect
|
||||
* @author Nicholas Pisarro
|
||||
* @copyright 2006
|
||||
* @license BSD
|
||||
* @version release: 0.3.0
|
||||
* @category Text
|
||||
* @package Text_LanguageDetect
|
||||
* @author Nicholas Pisarro <infinityminusnine+pear@gmail.com>
|
||||
* @copyright 2006 Nicholas Pisarro
|
||||
* @license BSD http://www.opensource.org/licenses/bsd-license.php
|
||||
* @version Release: @package_version@
|
||||
* @link http://pear.php.net/package/Text_LanguageDetect/
|
||||
*/
|
||||
class Text_LanguageDetect_Parser extends Text_LanguageDetect
|
||||
{
|
||||
/**
|
||||
* the piece of text being parsed
|
||||
* The piece of text being parsed
|
||||
*
|
||||
* @access private
|
||||
* @var string
|
||||
* @var string
|
||||
*/
|
||||
var $_string;
|
||||
protected $_string;
|
||||
|
||||
/**
|
||||
* stores the trigram frequencies of the sample
|
||||
* Stores the trigram frequencies of the sample
|
||||
*
|
||||
* @access private
|
||||
* @var string
|
||||
* @var string
|
||||
*/
|
||||
var $_trigrams = array();
|
||||
protected $_trigrams = array();
|
||||
|
||||
/**
|
||||
* stores the trigram ranks of the sample
|
||||
* Stores the trigram ranks of the sample
|
||||
*
|
||||
* @access private
|
||||
* @var array
|
||||
* @var array
|
||||
*/
|
||||
var $_trigram_ranks = array();
|
||||
protected $_trigram_ranks = array();
|
||||
|
||||
/**
|
||||
* stores the unicode blocks of the sample
|
||||
* Stores the unicode blocks of the sample
|
||||
*
|
||||
* @access private
|
||||
* @var array
|
||||
* @var array
|
||||
*/
|
||||
var $_unicode_blocks = array();
|
||||
|
||||
protected $_unicode_blocks = array();
|
||||
|
||||
/**
|
||||
* Whether the parser should compile the unicode ranges
|
||||
*
|
||||
* @access private
|
||||
* @var bool
|
||||
*
|
||||
* @var bool
|
||||
*/
|
||||
var $_compile_unicode = false;
|
||||
protected $_compile_unicode = false;
|
||||
|
||||
/**
|
||||
* Whether the parser should compile trigrams
|
||||
*
|
||||
* @access private
|
||||
* @var bool
|
||||
* @var bool
|
||||
*/
|
||||
var $_compile_trigram = false;
|
||||
protected $_compile_trigram = false;
|
||||
|
||||
/**
|
||||
* Whether the trigram parser should pad the beginning of the string
|
||||
*
|
||||
* @access private
|
||||
* @var bool
|
||||
* @var bool
|
||||
*/
|
||||
var $_trigram_pad_start = false;
|
||||
protected $_trigram_pad_start = false;
|
||||
|
||||
/**
|
||||
* Whether the unicode parser should skip non-alphabetical ascii chars
|
||||
*
|
||||
* @access private
|
||||
* @var bool
|
||||
* @var bool
|
||||
*/
|
||||
var $_unicode_skip_symbols = true;
|
||||
protected $_unicode_skip_symbols = true;
|
||||
|
||||
/**
|
||||
* Constructor
|
||||
*
|
||||
* @access private
|
||||
* @param string $string string to be parsed
|
||||
* @param string $string string to be parsed
|
||||
*/
|
||||
function Text_LanguageDetect_Parser($string) {
|
||||
public function __construct($string)
|
||||
{
|
||||
$this->_string = $string;
|
||||
}
|
||||
|
||||
/**
|
||||
* PHP 4 constructor for backwards compatibility.
|
||||
*
|
||||
* @param string $string string to be parsed
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
public function Text_LanguageDetect_Parser($string)
|
||||
{
|
||||
self::__construct($string);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns true if a string is suitable for parsing
|
||||
*
|
||||
* @param string $str input string to test
|
||||
* @return bool true if acceptable, false if not
|
||||
* @param string $str input string to test
|
||||
*
|
||||
* @return bool true if acceptable, false if not
|
||||
*/
|
||||
public static function validateString($str) {
|
||||
public static function validateString($str)
|
||||
{
|
||||
if (!empty($str) && strlen($str) > 3 && preg_match('/\S/', $str)) {
|
||||
return true;
|
||||
} else {
|
||||
|
@ -121,34 +127,37 @@ class Text_LanguageDetect_Parser extends Text_LanguageDetect
|
|||
}
|
||||
|
||||
/**
|
||||
* turn on/off trigram counting
|
||||
* Turn on/off trigram counting
|
||||
*
|
||||
* @access public
|
||||
* @param bool $bool true for on, false for off
|
||||
* @param bool $bool true for on, false for off
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
function prepareTrigram($bool = true)
|
||||
public function prepareTrigram($bool = true)
|
||||
{
|
||||
$this->_compile_trigram = $bool;
|
||||
}
|
||||
|
||||
/**
|
||||
* turn on/off unicode block counting
|
||||
* Turn on/off unicode block counting
|
||||
*
|
||||
* @access public
|
||||
* @param bool $bool true for on, false for off
|
||||
* @param bool $bool true for on, false for off
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
function prepareUnicode($bool = true)
|
||||
public function prepareUnicode($bool = true)
|
||||
{
|
||||
$this->_compile_unicode = $bool;
|
||||
}
|
||||
|
||||
/**
|
||||
* turn on/off padding the beginning of the sample string
|
||||
* Turn on/off padding the beginning of the sample string
|
||||
*
|
||||
* @access public
|
||||
* @param bool $bool true for on, false for off
|
||||
* @param bool $bool true for on, false for off
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
function setPadStart($bool = true)
|
||||
public function setPadStart($bool = true)
|
||||
{
|
||||
$this->_trigram_pad_start = $bool;
|
||||
}
|
||||
|
@ -156,10 +165,11 @@ class Text_LanguageDetect_Parser extends Text_LanguageDetect
|
|||
/**
|
||||
* Should the unicode block counter skip non-alphabetical ascii chars?
|
||||
*
|
||||
* @access public
|
||||
* @param bool $bool true for on, false for off
|
||||
* @param bool $bool true for on, false for off
|
||||
*
|
||||
* @return void
|
||||
*/
|
||||
function setUnicodeSkipSymbols($bool = true)
|
||||
public function setUnicodeSkipSymbols($bool = true)
|
||||
{
|
||||
$this->_unicode_skip_symbols = $bool;
|
||||
}
|
||||
|
@ -167,10 +177,9 @@ class Text_LanguageDetect_Parser extends Text_LanguageDetect
|
|||
/**
|
||||
* Returns the trigram ranks for the text sample
|
||||
*
|
||||
* @access public
|
||||
* @return array trigram ranks in the text sample
|
||||
* @return array Trigram ranks in the text sample
|
||||
*/
|
||||
function &getTrigramRanks()
|
||||
public function getTrigramRanks()
|
||||
{
|
||||
return $this->_trigram_ranks;
|
||||
}
|
||||
|
@ -178,39 +187,37 @@ class Text_LanguageDetect_Parser extends Text_LanguageDetect
|
|||
/**
|
||||
* Return the trigram freqency table
|
||||
*
|
||||
* only used in testing to make sure the parser is working
|
||||
* Only used in testing to make sure the parser is working
|
||||
*
|
||||
* @access public
|
||||
* @return array trigram freqencies in the text sample
|
||||
* @return array Trigram freqencies in the text sample
|
||||
*/
|
||||
function &getTrigramFreqs()
|
||||
public function getTrigramFreqs()
|
||||
{
|
||||
return $this->_trigram;
|
||||
}
|
||||
|
||||
/**
|
||||
* returns the array of unicode blocks
|
||||
* Returns the array of unicode blocks
|
||||
*
|
||||
* @access public
|
||||
* @return array unicode blocks in the text sample
|
||||
* @return array Unicode blocks in the text sample
|
||||
*/
|
||||
function &getUnicodeBlocks()
|
||||
public function getUnicodeBlocks()
|
||||
{
|
||||
return $this->_unicode_blocks;
|
||||
}
|
||||
|
||||
/**
|
||||
* Executes the parsing operation
|
||||
*
|
||||
* Be sure to call the set*() functions to set options and the
|
||||
*
|
||||
* Be sure to call the set*() functions to set options and the
|
||||
* prepare*() functions first to tell it what kind of data to compute
|
||||
*
|
||||
* Afterwards the get*() functions can be used to access the compiled
|
||||
* information.
|
||||
*
|
||||
* @access public
|
||||
* @return void
|
||||
*/
|
||||
function analyze()
|
||||
public function analyze()
|
||||
{
|
||||
$len = strlen($this->_string);
|
||||
$byte_counter = 0;
|
||||
|
@ -258,9 +265,9 @@ class Text_LanguageDetect_Parser extends Text_LanguageDetect
|
|||
if ($this->_compile_trigram) {
|
||||
if (!($b == ' ' && ($a == ' ' || $char == ' '))) {
|
||||
if (!isset($this->_trigram[$a . $b . $char])) {
|
||||
$this->_trigram[$a . $b . $char] = 1;
|
||||
$this->_trigram[$a . $b . $char] = 1;
|
||||
} else {
|
||||
$this->_trigram[$a . $b . $char]++;
|
||||
$this->_trigram[$a . $b . $char]++;
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -271,10 +278,11 @@ class Text_LanguageDetect_Parser extends Text_LanguageDetect
|
|||
// unicode block detection
|
||||
if ($this->_compile_unicode) {
|
||||
if ($this->_unicode_skip_symbols
|
||||
&& strlen($char) == 1
|
||||
&& ($char < 'A' || $char > 'z'
|
||||
|| ($char > 'Z' && $char < 'a'))
|
||||
&& $char != "'") { // does not skip the apostrophe
|
||||
&& strlen($char) == 1
|
||||
&& ($char < 'A' || $char > 'z'
|
||||
|| ($char > 'Z' && $char < 'a'))
|
||||
&& $char != "'"
|
||||
) { // does not skip the apostrophe
|
||||
// since it's included in the language
|
||||
// models
|
||||
|
||||
|
@ -297,7 +305,8 @@ class Text_LanguageDetect_Parser extends Text_LanguageDetect
|
|||
if ($this->_compile_unicode) {
|
||||
foreach ($unicode_chars as $utf8_char => $count) {
|
||||
$search_result = $this->_unicode_block_name(
|
||||
$this->_utf8char2unicode($utf8_char), $blocks, $block_count);
|
||||
$this->_utf8char2unicode($utf8_char), $blocks, $block_count
|
||||
);
|
||||
|
||||
if ($search_result != -1) {
|
||||
$block_name = $search_result[2];
|
||||
|
|
7
library/langdet/data/build-unicode_blocks.php
Normal file
7
library/langdet/data/build-unicode_blocks.php
Normal file
|
@ -0,0 +1,7 @@
|
|||
<?php
|
||||
/**
|
||||
* Generate the serialized unicode_blocks.dat file shipped with the package
|
||||
*/
|
||||
$unicode_blocks = include __DIR__ . '/unicode_blocks.php';
|
||||
file_put_contents(__DIR__ . '/unicode_blocks.dat', serialize($unicode_blocks));
|
||||
?>
|
File diff suppressed because one or more lines are too long
874
library/langdet/data/unicode_blocks.php
Normal file
874
library/langdet/data/unicode_blocks.php
Normal file
|
@ -0,0 +1,874 @@
|
|||
<?php
|
||||
return array (
|
||||
0 =>
|
||||
array (
|
||||
0 => 0x0000,
|
||||
1 => 0x007F,
|
||||
2 => 'Basic Latin',
|
||||
),
|
||||
1 =>
|
||||
array (
|
||||
0 => 0x0080,
|
||||
1 => 0x00FF,
|
||||
2 => 'Latin-1 Supplement',
|
||||
),
|
||||
2 =>
|
||||
array (
|
||||
0 => 0x0100,
|
||||
1 => 0x017F,
|
||||
2 => 'Latin Extended-A',
|
||||
),
|
||||
3 =>
|
||||
array (
|
||||
0 => 0x0180,
|
||||
1 => 0x024F,
|
||||
2 => 'Latin Extended-B',
|
||||
),
|
||||
4 =>
|
||||
array (
|
||||
0 => 0x0250,
|
||||
1 => 0x02AF,
|
||||
2 => 'IPA Extensions',
|
||||
),
|
||||
5 =>
|
||||
array (
|
||||
0 => 0x02B0,
|
||||
1 => 0x02FF,
|
||||
2 => 'Spacing Modifier Letters',
|
||||
),
|
||||
6 =>
|
||||
array (
|
||||
0 => 0x0300,
|
||||
1 => 0x036F,
|
||||
2 => 'Combining Diacritical Marks',
|
||||
),
|
||||
7 =>
|
||||
array (
|
||||
0 => 0x0370,
|
||||
1 => 0x03FF,
|
||||
2 => 'Greek and Coptic',
|
||||
),
|
||||
8 =>
|
||||
array (
|
||||
0 => 0x0400,
|
||||
1 => 0x04FF,
|
||||
2 => 'Cyrillic',
|
||||
),
|
||||
9 =>
|
||||
array (
|
||||
0 => 0x0500,
|
||||
1 => 0x052F,
|
||||
2 => 'Cyrillic Supplement',
|
||||
),
|
||||
10 =>
|
||||
array (
|
||||
0 => 0x0530,
|
||||
1 => 0x058F,
|
||||
2 => 'Armenian',
|
||||
),
|
||||
11 =>
|
||||
array (
|
||||
0 => 0x0590,
|
||||
1 => 0x05FF,
|
||||
2 => 'Hebrew',
|
||||
),
|
||||
12 =>
|
||||
array (
|
||||
0 => 0x0600,
|
||||
1 => 0x06FF,
|
||||
2 => 'Arabic',
|
||||
),
|
||||
13 =>
|
||||
array (
|
||||
0 => 0x0700,
|
||||
1 => 0x074F,
|
||||
2 => 'Syriac',
|
||||
),
|
||||
14 =>
|
||||
array (
|
||||
0 => 0x0750,
|
||||
1 => 0x077F,
|
||||
2 => 'Arabic Supplement',
|
||||
),
|
||||
15 =>
|
||||
array (
|
||||
0 => 0x0780,
|
||||
1 => 0x07BF,
|
||||
2 => 'Thaana',
|
||||
),
|
||||
16 =>
|
||||
array (
|
||||
0 => 0x0900,
|
||||
1 => 0x097F,
|
||||
2 => 'Devanagari',
|
||||
),
|
||||
17 =>
|
||||
array (
|
||||
0 => 0x0980,
|
||||
1 => 0x09FF,
|
||||
2 => 'Bengali',
|
||||
),
|
||||
18 =>
|
||||
array (
|
||||
0 => 0x0A00,
|
||||
1 => 0x0A7F,
|
||||
2 => 'Gurmukhi',
|
||||
),
|
||||
19 =>
|
||||
array (
|
||||
0 => 0x0A80,
|
||||
1 => 0x0AFF,
|
||||
2 => 'Gujarati',
|
||||
),
|
||||
20 =>
|
||||
array (
|
||||
0 => 0x0B00,
|
||||
1 => 0x0B7F,
|
||||
2 => 'Oriya',
|
||||
),
|
||||
21 =>
|
||||
array (
|
||||
0 => 0x0B80,
|
||||
1 => 0x0BFF,
|
||||
2 => 'Tamil',
|
||||
),
|
||||
22 =>
|
||||
array (
|
||||
0 => 0x0C00,
|
||||
1 => 0x0C7F,
|
||||
2 => 'Telugu',
|
||||
),
|
||||
23 =>
|
||||
array (
|
||||
0 => 0x0C80,
|
||||
1 => 0x0CFF,
|
||||
2 => 'Kannada',
|
||||
),
|
||||
24 =>
|
||||
array (
|
||||
0 => 0x0D00,
|
||||
1 => 0x0D7F,
|
||||
2 => 'Malayalam',
|
||||
),
|
||||
25 =>
|
||||
array (
|
||||
0 => 0x0D80,
|
||||
1 => 0x0DFF,
|
||||
2 => 'Sinhala',
|
||||
),
|
||||
26 =>
|
||||
array (
|
||||
0 => 0x0E00,
|
||||
1 => 0x0E7F,
|
||||
2 => 'Thai',
|
||||
),
|
||||
27 =>
|
||||
array (
|
||||
0 => 0x0E80,
|
||||
1 => 0x0EFF,
|
||||
2 => 'Lao',
|
||||
),
|
||||
28 =>
|
||||
array (
|
||||
0 => 0x0F00,
|
||||
1 => 0x0FFF,
|
||||
2 => 'Tibetan',
|
||||
),
|
||||
29 =>
|
||||
array (
|
||||
0 => 0x1000,
|
||||
1 => 0x109F,
|
||||
2 => 'Myanmar',
|
||||
),
|
||||
30 =>
|
||||
array (
|
||||
0 => 0x10A0,
|
||||
1 => 0x10FF,
|
||||
2 => 'Georgian',
|
||||
),
|
||||
31 =>
|
||||
array (
|
||||
0 => 0x1100,
|
||||
1 => 0x11FF,
|
||||
2 => 'Hangul Jamo',
|
||||
),
|
||||
32 =>
|
||||
array (
|
||||
0 => 0x1200,
|
||||
1 => 0x137F,
|
||||
2 => 'Ethiopic',
|
||||
),
|
||||
33 =>
|
||||
array (
|
||||
0 => 0x1380,
|
||||
1 => 0x139F,
|
||||
2 => 'Ethiopic Supplement',
|
||||
),
|
||||
34 =>
|
||||
array (
|
||||
0 => 0x13A0,
|
||||
1 => 0x13FF,
|
||||
2 => 'Cherokee',
|
||||
),
|
||||
35 =>
|
||||
array (
|
||||
0 => 0x1400,
|
||||
1 => 0x167F,
|
||||
2 => 'Unified Canadian Aboriginal Syllabics',
|
||||
),
|
||||
36 =>
|
||||
array (
|
||||
0 => 0x1680,
|
||||
1 => 0x169F,
|
||||
2 => 'Ogham',
|
||||
),
|
||||
37 =>
|
||||
array (
|
||||
0 => 0x16A0,
|
||||
1 => 0x16FF,
|
||||
2 => 'Runic',
|
||||
),
|
||||
38 =>
|
||||
array (
|
||||
0 => 0x1700,
|
||||
1 => 0x171F,
|
||||
2 => 'Tagalog',
|
||||
),
|
||||
39 =>
|
||||
array (
|
||||
0 => 0x1720,
|
||||
1 => 0x173F,
|
||||
2 => 'Hanunoo',
|
||||
),
|
||||
40 =>
|
||||
array (
|
||||
0 => 0x1740,
|
||||
1 => 0x175F,
|
||||
2 => 'Buhid',
|
||||
),
|
||||
41 =>
|
||||
array (
|
||||
0 => 0x1760,
|
||||
1 => 0x177F,
|
||||
2 => 'Tagbanwa',
|
||||
),
|
||||
42 =>
|
||||
array (
|
||||
0 => 0x1780,
|
||||
1 => 0x17FF,
|
||||
2 => 'Khmer',
|
||||
),
|
||||
43 =>
|
||||
array (
|
||||
0 => 0x1800,
|
||||
1 => 0x18AF,
|
||||
2 => 'Mongolian',
|
||||
),
|
||||
44 =>
|
||||
array (
|
||||
0 => 0x1900,
|
||||
1 => 0x194F,
|
||||
2 => 'Limbu',
|
||||
),
|
||||
45 =>
|
||||
array (
|
||||
0 => 0x1950,
|
||||
1 => 0x197F,
|
||||
2 => 'Tai Le',
|
||||
),
|
||||
46 =>
|
||||
array (
|
||||
0 => 0x1980,
|
||||
1 => 0x19DF,
|
||||
2 => 'New Tai Lue',
|
||||
),
|
||||
47 =>
|
||||
array (
|
||||
0 => 0x19E0,
|
||||
1 => 0x19FF,
|
||||
2 => 'Khmer Symbols',
|
||||
),
|
||||
48 =>
|
||||
array (
|
||||
0 => 0x1A00,
|
||||
1 => 0x1A1F,
|
||||
2 => 'Buginese',
|
||||
),
|
||||
49 =>
|
||||
array (
|
||||
0 => 0x1D00,
|
||||
1 => 0x1D7F,
|
||||
2 => 'Phonetic Extensions',
|
||||
),
|
||||
50 =>
|
||||
array (
|
||||
0 => 0x1D80,
|
||||
1 => 0x1DBF,
|
||||
2 => 'Phonetic Extensions Supplement',
|
||||
),
|
||||
51 =>
|
||||
array (
|
||||
0 => 0x1DC0,
|
||||
1 => 0x1DFF,
|
||||
2 => 'Combining Diacritical Marks Supplement',
|
||||
),
|
||||
52 =>
|
||||
array (
|
||||
0 => 0x1E00,
|
||||
1 => 0x1EFF,
|
||||
2 => 'Latin Extended Additional',
|
||||
),
|
||||
53 =>
|
||||
array (
|
||||
0 => 0x1F00,
|
||||
1 => 0x1FFF,
|
||||
2 => 'Greek Extended',
|
||||
),
|
||||
54 =>
|
||||
array (
|
||||
0 => 0x2000,
|
||||
1 => 0x206F,
|
||||
2 => 'General Punctuation',
|
||||
),
|
||||
55 =>
|
||||
array (
|
||||
0 => 0x2070,
|
||||
1 => 0x209F,
|
||||
2 => 'Superscripts and Subscripts',
|
||||
),
|
||||
56 =>
|
||||
array (
|
||||
0 => 0x20A0,
|
||||
1 => 0x20CF,
|
||||
2 => 'Currency Symbols',
|
||||
),
|
||||
57 =>
|
||||
array (
|
||||
0 => 0x20D0,
|
||||
1 => 0x20FF,
|
||||
2 => 'Combining Diacritical Marks for Symbols',
|
||||
),
|
||||
58 =>
|
||||
array (
|
||||
0 => 0x2100,
|
||||
1 => 0x214F,
|
||||
2 => 'Letterlike Symbols',
|
||||
),
|
||||
59 =>
|
||||
array (
|
||||
0 => 0x2150,
|
||||
1 => 0x218F,
|
||||
2 => 'Number Forms',
|
||||
),
|
||||
60 =>
|
||||
array (
|
||||
0 => 0x2190,
|
||||
1 => 0x21FF,
|
||||
2 => 'Arrows',
|
||||
),
|
||||
61 =>
|
||||
array (
|
||||
0 => 0x2200,
|
||||
1 => 0x22FF,
|
||||
2 => 'Mathematical Operators',
|
||||
),
|
||||
62 =>
|
||||
array (
|
||||
0 => 0x2300,
|
||||
1 => 0x23FF,
|
||||
2 => 'Miscellaneous Technical',
|
||||
),
|
||||
63 =>
|
||||
array (
|
||||
0 => 0x2400,
|
||||
1 => 0x243F,
|
||||
2 => 'Control Pictures',
|
||||
),
|
||||
64 =>
|
||||
array (
|
||||
0 => 0x2440,
|
||||
1 => 0x245F,
|
||||
2 => 'Optical Character Recognition',
|
||||
),
|
||||
65 =>
|
||||
array (
|
||||
0 => 0x2460,
|
||||
1 => 0x24FF,
|
||||
2 => 'Enclosed Alphanumerics',
|
||||
),
|
||||
66 =>
|
||||
array (
|
||||
0 => 0x2500,
|
||||
1 => 0x257F,
|
||||
2 => 'Box Drawing',
|
||||
),
|
||||
67 =>
|
||||
array (
|
||||
0 => 0x2580,
|
||||
1 => 0x259F,
|
||||
2 => 'Block Elements',
|
||||
),
|
||||
68 =>
|
||||
array (
|
||||
0 => 0x25A0,
|
||||
1 => 0x25FF,
|
||||
2 => 'Geometric Shapes',
|
||||
),
|
||||
69 =>
|
||||
array (
|
||||
0 => 0x2600,
|
||||
1 => 0x26FF,
|
||||
2 => 'Miscellaneous Symbols',
|
||||
),
|
||||
70 =>
|
||||
array (
|
||||
0 => 0x2700,
|
||||
1 => 0x27BF,
|
||||
2 => 'Dingbats',
|
||||
),
|
||||
71 =>
|
||||
array (
|
||||
0 => 0x27C0,
|
||||
1 => 0x27EF,
|
||||
2 => 'Miscellaneous Mathematical Symbols-A',
|
||||
),
|
||||
72 =>
|
||||
array (
|
||||