forked from friendica/deprecated-addons
950 lines
27 KiB
PHP
950 lines
27 KiB
PHP
<?php
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/*
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Copyright (c) 2003, 2005, 2006, 2009 Danilo Segan <danilo@kvota.net>.
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This file is part of PHP-gettext.
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PHP-gettext is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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PHP-gettext is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with PHP-gettext; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* MODIFIED FOR THE JAPPIX PROJECT
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* Last revision: 10/11/10
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*/
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// Simple class to wrap file streams, string streams, etc.
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// seek is essential, and it should be byte stream
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class StreamReader {
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// should return a string [FIXME: perhaps return array of bytes?]
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function read($bytes) {
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return false;
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}
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// should return new position
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function seekto($position) {
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return false;
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}
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// returns current position
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function currentpos() {
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return false;
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}
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// returns length of entire stream (limit for seekto()s)
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function length() {
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return false;
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}
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};
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class StringReader {
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var $_pos;
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var $_str;
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function StringReader($str='') {
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$this->_str = $str;
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$this->_pos = 0;
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}
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function read($bytes) {
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$data = substr($this->_str, $this->_pos, $bytes);
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$this->_pos += $bytes;
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if (strlen($this->_str)<$this->_pos)
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$this->_pos = strlen($this->_str);
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return $data;
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}
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function seekto($pos) {
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$this->_pos = $pos;
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if (strlen($this->_str)<$this->_pos)
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$this->_pos = strlen($this->_str);
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return $this->_pos;
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}
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function currentpos() {
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return $this->_pos;
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}
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function length() {
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return strlen($this->_str);
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}
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};
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class FileReader {
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var $_pos;
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var $_fd;
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var $_length;
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function FileReader($filename) {
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if (file_exists($filename)) {
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$this->_length=filesize($filename);
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$this->_pos = 0;
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$this->_fd = fopen($filename,'rb');
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if (!$this->_fd) {
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$this->error = 3; // Cannot read file, probably permissions
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return false;
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}
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} else {
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$this->error = 2; // File doesn't exist
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return false;
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}
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}
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function read($bytes) {
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if ($bytes) {
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fseek($this->_fd, $this->_pos);
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// PHP 5.1.1 does not read more than 8192 bytes in one fread()
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// the discussions at PHP Bugs suggest it's the intended behaviour
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$data = '';
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while ($bytes > 0) {
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$chunk = fread($this->_fd, $bytes);
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$data .= $chunk;
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$bytes -= strlen($chunk);
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}
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$this->_pos = ftell($this->_fd);
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return $data;
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} else return '';
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}
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function seekto($pos) {
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fseek($this->_fd, $pos);
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$this->_pos = ftell($this->_fd);
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return $this->_pos;
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}
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function currentpos() {
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return $this->_pos;
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}
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function length() {
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return $this->_length;
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}
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function close() {
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fclose($this->_fd);
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}
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};
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// Preloads entire file in memory first, then creates a StringReader
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// over it (it assumes knowledge of StringReader internals)
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class CachedFileReader extends StringReader {
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function CachedFileReader($filename) {
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if (file_exists($filename)) {
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$length=filesize($filename);
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$fd = fopen($filename,'rb');
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if (!$fd) {
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$this->error = 3; // Cannot read file, probably permissions
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return false;
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}
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$this->_str = fread($fd, $length);
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fclose($fd);
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} else {
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$this->error = 2; // File doesn't exist
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return false;
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}
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}
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};
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/*
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Copyright (c) 2003, 2009 Danilo Segan <danilo@kvota.net>.
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Copyright (c) 2005 Nico Kaiser <nico@siriux.net>
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This file is part of PHP-gettext.
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PHP-gettext is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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PHP-gettext is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with PHP-gettext; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/**
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* Provides a simple gettext replacement that works independently from
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* the system's gettext abilities.
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* It can read MO files and use them for translating strings.
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* The files are passed to gettext_reader as a Stream (see streams.php)
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*
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* This version has the ability to cache all strings and translations to
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* speed up the string lookup.
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* While the cache is enabled by default, it can be switched off with the
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* second parameter in the constructor (e.g. whenusing very large MO files
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* that you don't want to keep in memory)
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*/
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class gettext_reader {
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//public:
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var $error = 0; // public variable that holds error code (0 if no error)
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//private:
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var $BYTEORDER = 0; // 0: low endian, 1: big endian
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var $STREAM = NULL;
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var $short_circuit = false;
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var $enable_cache = false;
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var $originals = NULL; // offset of original table
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var $translations = NULL; // offset of translation table
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var $pluralheader = NULL; // cache header field for plural forms
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var $total = 0; // total string count
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var $table_originals = NULL; // table for original strings (offsets)
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var $table_translations = NULL; // table for translated strings (offsets)
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var $cache_translations = NULL; // original -> translation mapping
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/* Methods */
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/**
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* Reads a 32bit Integer from the Stream
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*
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* @access private
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* @return Integer from the Stream
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*/
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function readint() {
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if ($this->BYTEORDER == 0) {
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// low endian
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$input=unpack('V', $this->STREAM->read(4));
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return array_shift($input);
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} else {
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// big endian
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$input=unpack('N', $this->STREAM->read(4));
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return array_shift($input);
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}
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}
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function read($bytes) {
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return $this->STREAM->read($bytes);
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}
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/**
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* Reads an array of Integers from the Stream
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*
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* @param int count How many elements should be read
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* @return Array of Integers
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*/
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function readintarray($count) {
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if ($this->BYTEORDER == 0) {
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// low endian
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return unpack('V'.$count, $this->STREAM->read(4 * $count));
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} else {
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// big endian
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return unpack('N'.$count, $this->STREAM->read(4 * $count));
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}
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}
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/**
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* Constructor
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*
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* @param object Reader the StreamReader object
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* @param boolean enable_cache Enable or disable caching of strings (default on)
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*/
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function gettext_reader($Reader, $enable_cache = true) {
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// If there isn't a StreamReader, turn on short circuit mode.
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if (! $Reader || isset($Reader->error) ) {
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$this->short_circuit = true;
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return;
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}
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// Caching can be turned off
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$this->enable_cache = $enable_cache;
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$MAGIC1 = "\x95\x04\x12\xde";
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$MAGIC2 = "\xde\x12\x04\x95";
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$this->STREAM = $Reader;
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$magic = $this->read(4);
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if ($magic == $MAGIC1) {
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$this->BYTEORDER = 1;
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} elseif ($magic == $MAGIC2) {
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$this->BYTEORDER = 0;
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} else {
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$this->error = 1; // not MO file
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return false;
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}
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// FIXME: Do we care about revision? We should.
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$revision = $this->readint();
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$this->total = $this->readint();
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$this->originals = $this->readint();
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$this->translations = $this->readint();
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}
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/**
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* Loads the translation tables from the MO file into the cache
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* If caching is enabled, also loads all strings into a cache
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* to speed up translation lookups
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*
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* @access private
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*/
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function load_tables() {
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if (is_array($this->cache_translations) &&
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is_array($this->table_originals) &&
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is_array($this->table_translations))
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return;
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/* get original and translations tables */
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$this->STREAM->seekto($this->originals);
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$this->table_originals = $this->readintarray($this->total * 2);
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$this->STREAM->seekto($this->translations);
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$this->table_translations = $this->readintarray($this->total * 2);
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if ($this->enable_cache) {
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$this->cache_translations = array ();
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/* read all strings in the cache */
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for ($i = 0; $i < $this->total; $i++) {
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$this->STREAM->seekto($this->table_originals[$i * 2 + 2]);
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$original = $this->STREAM->read($this->table_originals[$i * 2 + 1]);
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$this->STREAM->seekto($this->table_translations[$i * 2 + 2]);
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$translation = $this->STREAM->read($this->table_translations[$i * 2 + 1]);
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$this->cache_translations[$original] = $translation;
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}
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}
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}
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/**
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* Returns a string from the "originals" table
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*
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* @access private
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* @param int num Offset number of original string
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* @return string Requested string if found, otherwise ''
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*/
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function get_original_string($num) {
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$length = $this->table_originals[$num * 2 + 1];
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$offset = $this->table_originals[$num * 2 + 2];
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if (! $length)
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return '';
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$this->STREAM->seekto($offset);
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$data = $this->STREAM->read($length);
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return (string)$data;
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}
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/**
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* Returns a string from the "translations" table
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*
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* @access private
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* @param int num Offset number of original string
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* @return string Requested string if found, otherwise ''
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*/
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function get_translation_string($num) {
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$length = $this->table_translations[$num * 2 + 1];
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$offset = $this->table_translations[$num * 2 + 2];
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if (! $length)
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return '';
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$this->STREAM->seekto($offset);
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$data = $this->STREAM->read($length);
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return (string)$data;
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}
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/**
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* Binary search for string
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*
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* @access private
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* @param string string
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* @param int start (internally used in recursive function)
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* @param int end (internally used in recursive function)
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* @return int string number (offset in originals table)
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*/
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function find_string($string, $start = -1, $end = -1) {
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if (($start == -1) or ($end == -1)) {
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// find_string is called with only one parameter, set start end end
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$start = 0;
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$end = $this->total;
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}
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if (abs($start - $end) <= 1) {
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// We're done, now we either found the string, or it doesn't exist
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$txt = $this->get_original_string($start);
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if ($string == $txt)
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return $start;
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else
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return -1;
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} else if ($start > $end) {
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// start > end -> turn around and start over
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return $this->find_string($string, $end, $start);
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} else {
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// Divide table in two parts
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$half = (int)(($start + $end) / 2);
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$cmp = strcmp($string, $this->get_original_string($half));
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if ($cmp == 0)
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// string is exactly in the middle => return it
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return $half;
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else if ($cmp < 0)
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// The string is in the upper half
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return $this->find_string($string, $start, $half);
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else
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// The string is in the lower half
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return $this->find_string($string, $half, $end);
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}
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}
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/**
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* Translates a string
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*
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* @access public
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* @param string string to be translated
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* @return string translated string (or original, if not found)
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*/
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function translate($string) {
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if ($this->short_circuit)
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return $string;
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$this->load_tables();
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if ($this->enable_cache) {
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// Caching enabled, get translated string from cache
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if (array_key_exists($string, $this->cache_translations))
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return $this->cache_translations[$string];
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else
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return $string;
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} else {
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// Caching not enabled, try to find string
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$num = $this->find_string($string);
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if ($num == -1)
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return $string;
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else
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return $this->get_translation_string($num);
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}
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}
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/**
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* Sanitize plural form expression for use in PHP eval call.
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*
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* @access private
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* @return string sanitized plural form expression
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*/
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function sanitize_plural_expression($expr) {
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// Get rid of disallowed characters.
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$expr = preg_replace('@[^a-zA-Z0-9_:;\(\)\?\|\&=!<>+*/\%-]@', '', $expr);
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// Add parenthesis for tertiary '?' operator.
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$expr .= ';';
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$res = '';
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$p = 0;
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for ($i = 0; $i < strlen($expr); $i++) {
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$ch = $expr[$i];
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switch ($ch) {
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case '?':
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$res .= ' ? (';
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$p++;
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break;
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case ':':
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$res .= ') : (';
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break;
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case ';':
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$res .= str_repeat( ')', $p) . ';';
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$p = 0;
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break;
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default:
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$res .= $ch;
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}
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}
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return $res;
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}
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/**
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* Get possible plural forms from MO header
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*
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* @access private
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* @return string plural form header
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*/
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function get_plural_forms() {
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// lets assume message number 0 is header
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// this is true, right?
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$this->load_tables();
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// cache header field for plural forms
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if (! is_string($this->pluralheader)) {
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if ($this->enable_cache) {
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$header = $this->cache_translations[""];
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} else {
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$header = $this->get_translation_string(0);
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}
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if (eregi("plural-forms: ([^\n]*)\n", $header, $regs))
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$expr = $regs[1];
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else
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$expr = "nplurals=2; plural=n == 1 ? 0 : 1;";
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$this->pluralheader = $this->sanitize_plural_expression($expr);
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}
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return $this->pluralheader;
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}
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/**
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* Detects which plural form to take
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*
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* @access private
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* @param n count
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* @return int array index of the right plural form
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*/
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function select_string($n) {
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$string = $this->get_plural_forms();
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$string = str_replace('nplurals',"\$total",$string);
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$string = str_replace("n",$n,$string);
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$string = str_replace('plural',"\$plural",$string);
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$total = 0;
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$plural = 0;
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eval("$string");
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if ($plural >= $total) $plural = $total - 1;
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return $plural;
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}
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/**
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* Plural version of gettext
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*
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* @access public
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* @param string single
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* @param string plural
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* @param string number
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* @return translated plural form
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*/
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function ngettext($single, $plural, $number) {
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if ($this->short_circuit) {
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if ($number != 1)
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return $plural;
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else
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return $single;
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}
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// find out the appropriate form
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$select = $this->select_string($number);
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// this should contains all strings separated by NULLs
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$key = $single.chr(0).$plural;
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if ($this->enable_cache) {
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if (! array_key_exists($key, $this->cache_translations)) {
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return ($number != 1) ? $plural : $single;
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} else {
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$result = $this->cache_translations[$key];
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$list = explode(chr(0), $result);
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return $list[$select];
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}
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} else {
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$num = $this->find_string($key);
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if ($num == -1) {
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return ($number != 1) ? $plural : $single;
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} else {
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$result = $this->get_translation_string($num);
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$list = explode(chr(0), $result);
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return $list[$select];
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}
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}
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}
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}
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/*
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Copyright (c) 2005 Steven Armstrong <sa at c-area dot ch>
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Copyright (c) 2009 Danilo Segan <danilo@kvota.net>
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Drop in replacement for native gettext.
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This file is part of PHP-gettext.
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PHP-gettext is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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PHP-gettext is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with PHP-gettext; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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LC_CTYPE 0
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LC_NUMERIC 1
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LC_TIME 2
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LC_COLLATE 3
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LC_MONETARY 4
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LC_MESSAGES 5
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LC_ALL 6
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*/
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// LC_MESSAGES is not available if php-gettext is not loaded
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// while the other constants are already available from session extension.
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if (!defined('LC_MESSAGES')) {
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define('LC_MESSAGES', 5);
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}
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// Variables
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global $text_domains, $default_domain, $LC_CATEGORIES, $EMULATEGETTEXT, $CURRENTLOCALE;
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$text_domains = array();
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$default_domain = 'messages';
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$LC_CATEGORIES = array('LC_CTYPE', 'LC_NUMERIC', 'LC_TIME', 'LC_COLLATE', 'LC_MONETARY', 'LC_MESSAGES', 'LC_ALL');
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$EMULATEGETTEXT = 0;
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$CURRENTLOCALE = '';
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/* Class to hold a single domain included in $text_domains. */
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class domain {
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var $l10n;
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var $path;
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var $codeset;
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}
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// Utility functions
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/**
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* Utility function to get a StreamReader for the given text domain.
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*/
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function _get_reader($domain=null, $category=5, $enable_cache=true) {
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global $text_domains, $default_domain, $LC_CATEGORIES;
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if (!isset($domain)) $domain = $default_domain;
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if (!isset($text_domains[$domain]->l10n)) {
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// get the current locale
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$locale = _setlocale(LC_MESSAGES, 0);
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$bound_path = isset($text_domains[$domain]->path) ?
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$text_domains[$domain]->path : './';
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$subpath = $LC_CATEGORIES[$category] ."/$domain.mo";
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/* Figure out all possible locale names and start with the most
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specific ones. I.e. for sr_CS.UTF-8@latin, look through all of
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sr_CS.UTF-8@latin, sr_CS@latin, sr@latin, sr_CS.UTF-8, sr_CS, sr.
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*/
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$locale_names = array();
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if (preg_match("/([a-z]{2,3})" // language code
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."(_([A-Z]{2}))?" // country code
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."(\.([-A-Za-z0-9_]))?" // charset
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."(@([-A-Za-z0-9_]+))?/", // @ modifier
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$locale, $matches)) {
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$lang = '';
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$country = '';
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$charset = '';
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$modifier = '';
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if(isset($matches[1]))
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$lang = $matches[1];
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if(isset($matches[3]))
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$country = $matches[3];
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if(isset($matches[5]))
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$charset = $matches[5];
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if(isset($matches[7]))
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$modifier = $matches[7];
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if ($modifier) {
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$locale_names = array("${lang}_$country.$charset@$modifier",
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"${lang}_$country@$modifier",
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"$lang@$modifier");
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}
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array_push($locale_names,
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"${lang}_$country.$charset", "${lang}_$country", "$lang");
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}
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array_push($locale_names, $locale);
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$input = null;
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foreach ($locale_names as $locale) {
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$full_path = $bound_path . $locale . "/" . $subpath;
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if (file_exists($full_path)) {
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$input = new FileReader($full_path);
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break;
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}
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}
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if (!array_key_exists($domain, $text_domains)) {
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// Initialize an empty domain object.
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$text_domains[$domain] = new domain();
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}
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$text_domains[$domain]->l10n = new gettext_reader($input,
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$enable_cache);
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}
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return $text_domains[$domain]->l10n;
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}
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/**
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* Returns whether we are using our emulated gettext API or PHP built-in one.
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*/
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function locale_emulation() {
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global $EMULATEGETTEXT;
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return $EMULATEGETTEXT;
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}
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/**
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* Checks if the current locale is supported on this system.
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*/
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function _check_locale() {
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global $EMULATEGETTEXT;
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return !$EMULATEGETTEXT;
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}
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/**
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* Get the codeset for the given domain.
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*/
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function _get_codeset($domain=null) {
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global $text_domains, $default_domain, $LC_CATEGORIES;
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if (!isset($domain)) $domain = $default_domain;
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return (isset($text_domains[$domain]->codeset))? $text_domains[$domain]->codeset : ini_get('mbstring.internal_encoding');
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}
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/**
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* Convert the given string to the encoding set by bind_textdomain_codeset.
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*/
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function _encode($text) {
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$source_encoding = mb_detect_encoding($text);
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$target_encoding = _get_codeset();
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if ($source_encoding != $target_encoding) {
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return mb_convert_encoding($text, $target_encoding, $source_encoding);
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}
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else {
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return $text;
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}
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}
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// Custom implementation of the standard gettext related functions
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/**
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* Sets a requested locale, if needed emulates it.
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*/
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function _setlocale($category, $locale) {
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global $CURRENTLOCALE, $EMULATEGETTEXT;
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if ($locale === 0) { // use === to differentiate between string "0"
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if ($CURRENTLOCALE != '')
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return $CURRENTLOCALE;
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else
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// obey LANG variable, maybe extend to support all of LC_* vars
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// even if we tried to read locale without setting it first
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return _setlocale($category, $CURRENTLOCALE);
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} else {
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$ret = 0;
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if (function_exists('setlocale')) // I don't know if this ever happens ;)
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$ret = setlocale($category, $locale);
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if (($ret and $locale == '') or ($ret == $locale)) {
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$EMULATEGETTEXT = 0;
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$CURRENTLOCALE = $ret;
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} else {
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if ($locale == '') // emulate variable support
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$CURRENTLOCALE = getenv('LANG');
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else
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$CURRENTLOCALE = $locale;
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$EMULATEGETTEXT = 1;
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}
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// Allow locale to be changed on the go for one translation domain.
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global $text_domains, $default_domain;
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unset($text_domains[$default_domain]->l10n);
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return $CURRENTLOCALE;
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}
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}
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/**
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* Sets the path for a domain.
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*/
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function _bindtextdomain($domain, $path) {
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global $text_domains;
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// ensure $path ends with a slash ('/' should work for both, but lets still play nice)
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if (substr(php_uname(), 0, 7) == "Windows") {
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if ($path[strlen($path)-1] != '\\' and $path[strlen($path)-1] != '/')
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$path .= '\\';
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} else {
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if ($path[strlen($path)-1] != '/')
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$path .= '/';
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}
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if (!array_key_exists($domain, $text_domains)) {
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// Initialize an empty domain object.
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$text_domains[$domain] = new domain();
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}
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$text_domains[$domain]->path = $path;
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}
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/**
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* Specify the character encoding in which the messages from the DOMAIN message catalog will be returned.
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*/
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function _bind_textdomain_codeset($domain, $codeset) {
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global $text_domains;
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$text_domains[$domain]->codeset = $codeset;
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}
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/**
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* Sets the default domain.
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*/
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function _textdomain($domain) {
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global $default_domain;
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$default_domain = $domain;
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}
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/**
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* Lookup a message in the current domain.
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*/
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function _gettext($msgid) {
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$l10n = _get_reader();
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//return $l10n->translate($msgid);
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return _encode($l10n->translate($msgid));
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}
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/**
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* Alias for gettext.
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*/
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function __($msgid) {
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return _gettext($msgid);
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}
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/**
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* Plural version of gettext.
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*/
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function _ngettext($single, $plural, $number) {
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$l10n = _get_reader();
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//return $l10n->ngettext($single, $plural, $number);
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return _encode($l10n->ngettext($single, $plural, $number));
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}
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/**
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* Override the current domain.
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*/
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function _dgettext($domain, $msgid) {
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$l10n = _get_reader($domain);
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//return $l10n->translate($msgid);
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return _encode($l10n->translate($msgid));
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}
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/**
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* Plural version of dgettext.
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*/
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function _dngettext($domain, $single, $plural, $number) {
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$l10n = _get_reader($domain);
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//return $l10n->ngettext($single, $plural, $number);
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return _encode($l10n->ngettext($single, $plural, $number));
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}
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/**
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* Overrides the domain and category for a single lookup.
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*/
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function _dcgettext($domain, $msgid, $category) {
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$l10n = _get_reader($domain, $category);
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//return $l10n->translate($msgid);
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return _encode($l10n->translate($msgid));
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}
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/**
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* Plural version of dcgettext.
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*/
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function _dcngettext($domain, $single, $plural, $number, $category) {
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$l10n = _get_reader($domain, $category);
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//return $l10n->ngettext($single, $plural, $number);
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return _encode($l10n->ngettext($single, $plural, $number));
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}
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// Wrappers to use if the standard gettext functions are available, but the current locale is not supported by the system.
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// Use the standard impl if the current locale is supported, use the custom impl otherwise.
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function T_setlocale($category, $locale) {
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return _setlocale($category, $locale);
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}
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function T_bindtextdomain($domain, $path) {
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if (_check_locale()) return bindtextdomain($domain, $path);
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else return _bindtextdomain($domain, $path);
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}
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function T_bind_textdomain_codeset($domain, $codeset) {
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// bind_textdomain_codeset is available only in PHP 4.2.0+
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if (_check_locale() and function_exists('bind_textdomain_codeset')) return bind_textdomain_codeset($domain, $codeset);
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else return _bind_textdomain_codeset($domain, $codeset);
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}
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function T_textdomain($domain) {
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if (_check_locale()) return textdomain($domain);
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else return _textdomain($domain);
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}
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function T_gettext($msgid) {
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if (_check_locale()) return gettext($msgid);
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else return _gettext($msgid);
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}
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function T_($msgid) {
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if (_check_locale()) return _($msgid);
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return __($msgid);
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}
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function T_ngettext($single, $plural, $number) {
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if (_check_locale()) return ngettext($single, $plural, $number);
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else return _ngettext($single, $plural, $number);
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}
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function T_dgettext($domain, $msgid) {
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if (_check_locale()) return dgettext($domain, $msgid);
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else return _dgettext($domain, $msgid);
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}
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function T_dngettext($domain, $single, $plural, $number) {
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if (_check_locale()) return dngettext($domain, $single, $plural, $number);
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else return _dngettext($domain, $single, $plural, $number);
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}
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function T_dcgettext($domain, $msgid, $category) {
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if (_check_locale()) return dcgettext($domain, $msgid, $category);
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else return _dcgettext($domain, $msgid, $category);
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}
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function T_dcngettext($domain, $single, $plural, $number, $category) {
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if (_check_locale()) return dcngettext($domain, $single, $plural, $number, $category);
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else return _dcngettext($domain, $single, $plural, $number, $category);
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}
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// Wrappers used as a drop in replacement for the standard gettext functions
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if (!function_exists('gettext')) {
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function bindtextdomain($domain, $path) {
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return _bindtextdomain($domain, $path);
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}
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function bind_textdomain_codeset($domain, $codeset) {
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return _bind_textdomain_codeset($domain, $codeset);
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}
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function textdomain($domain) {
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return _textdomain($domain);
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}
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function gettext($msgid) {
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return _gettext($msgid);
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}
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function _($msgid) {
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return __($msgid);
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}
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function ngettext($single, $plural, $number) {
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return _ngettext($single, $plural, $number);
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}
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function dgettext($domain, $msgid) {
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return _dgettext($domain, $msgid);
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}
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function dngettext($domain, $single, $plural, $number) {
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return _dngettext($domain, $single, $plural, $number);
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}
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function dcgettext($domain, $msgid, $category) {
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return _dcgettext($domain, $msgid, $category);
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}
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function dcngettext($domain, $single, $plural, $number, $category) {
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return _dcngettext($domain, $single, $plural, $number, $category);
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}
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}
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?>
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