adding zend project folders into old campcaster.
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126
library/Zend/Search/Lucene/Analysis/Analyzer/Common/Utf8Num.php
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library/Zend/Search/Lucene/Analysis/Analyzer/Common/Utf8Num.php
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<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Search_Lucene
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* @subpackage Analysis
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Utf8Num.php 20096 2010-01-06 02:05:09Z bkarwin $
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*/
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/** Zend_Search_Lucene_Analysis_Analyzer_Common */
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require_once 'Zend/Search/Lucene/Analysis/Analyzer/Common.php';
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/**
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* @category Zend
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* @package Zend_Search_Lucene
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* @subpackage Analysis
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* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Search_Lucene_Analysis_Analyzer_Common_Utf8Num extends Zend_Search_Lucene_Analysis_Analyzer_Common
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{
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/**
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* Current char position in an UTF-8 stream
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*
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* @var integer
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*/
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private $_position;
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/**
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* Current binary position in an UTF-8 stream
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*
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* @var integer
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*/
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private $_bytePosition;
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/**
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* Object constructor
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*
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* @throws Zend_Search_Lucene_Exception
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*/
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public function __construct()
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{
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if (@preg_match('/\pL/u', 'a') != 1) {
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// PCRE unicode support is turned off
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require_once 'Zend/Search/Lucene/Exception.php';
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throw new Zend_Search_Lucene_Exception('Utf8Num analyzer needs PCRE unicode support to be enabled.');
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}
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}
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/**
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* Reset token stream
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*/
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public function reset()
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{
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$this->_position = 0;
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$this->_bytePosition = 0;
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// convert input into UTF-8
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if (strcasecmp($this->_encoding, 'utf8' ) != 0 &&
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strcasecmp($this->_encoding, 'utf-8') != 0 ) {
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$this->_input = iconv($this->_encoding, 'UTF-8', $this->_input);
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$this->_encoding = 'UTF-8';
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}
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}
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/**
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* Tokenization stream API
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* Get next token
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* Returns null at the end of stream
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*
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* @return Zend_Search_Lucene_Analysis_Token|null
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*/
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public function nextToken()
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{
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if ($this->_input === null) {
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return null;
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}
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do {
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if (! preg_match('/[\p{L}\p{N}]+/u', $this->_input, $match, PREG_OFFSET_CAPTURE, $this->_bytePosition)) {
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// It covers both cases a) there are no matches (preg_match(...) === 0)
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// b) error occured (preg_match(...) === FALSE)
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return null;
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}
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// matched string
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$matchedWord = $match[0][0];
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// binary position of the matched word in the input stream
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$binStartPos = $match[0][1];
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// character position of the matched word in the input stream
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$startPos = $this->_position +
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iconv_strlen(substr($this->_input,
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$this->_bytePosition,
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$binStartPos - $this->_bytePosition),
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'UTF-8');
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// character postion of the end of matched word in the input stream
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$endPos = $startPos + iconv_strlen($matchedWord, 'UTF-8');
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$this->_bytePosition = $binStartPos + strlen($matchedWord);
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$this->_position = $endPos;
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$token = $this->normalize(new Zend_Search_Lucene_Analysis_Token($matchedWord, $startPos, $endPos));
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} while ($token === null); // try again if token is skipped
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return $token;
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}
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}
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