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Fix gettext's plural forms for more than 2 plural forms. Props moeffju and nbachiyski. fixes #4005
git-svn-id: http://svn.automattic.com/wordpress/trunk@5266 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
rob1n
parent
24e1d66471
commit
62f5c944dc
@ -1,23 +1,23 @@
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<?php
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/*
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Copyright (c) 2003 Danilo Segan <danilo@kvota.net>.
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Copyright (c) 2005 Nico Kaiser <nico@siriux.net>
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Copyright (c) 2003 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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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 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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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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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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@ -34,332 +34,360 @@
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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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//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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//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 $select_string_function = NULL; // cache function, which chooses 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 $cache_translations = NULL; // original -> translation mapping
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/* Methods */
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/* Methods */
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/**
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* Reads a 32bit Integer from the Stream
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*
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* @access private
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* @return Integer from the Stream
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*/
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function readint() {
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if ($this->BYTEORDER == 0) {
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// low endian
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$low_end = unpack('V', $this->STREAM->read(4));
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return array_shift($low_end);
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} else {
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// big endian
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$big_end = unpack('N', $this->STREAM->read(4));
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return array_shift($big_end);
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}
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}
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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 ($this->BYTEORDER == 0) {
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// low endian
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$low_end = unpack('V', $this->STREAM->read(4));
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return array_shift($low_end);
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} else {
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// big endian
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$big_end = unpack('N', $this->STREAM->read(4));
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return array_shift($big_end);
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}
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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 * $count));
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}
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}
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/**
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* Reads an array of Integers from the Stream
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*
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* @param int count How many elements should be read
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* @return Array of Integers
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*/
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function readintarray($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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$this->short_circuit = true;
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return;
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}
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/**
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* Constructor
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*
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* @param object Reader the StreamReader object
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* @param boolean enable_cache Enable or disable caching of strings (default on)
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*/
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function gettext_reader($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 = $enable_cache;
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// Caching can be turned off
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$this->enable_cache = $enable_cache;
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// $MAGIC1 = (int)0x950412de; //bug in PHP 5.0.2, see https://savannah.nongnu.org/bugs/?func=detailitem&item_id=10565
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$MAGIC1 = (int) - 1794895138;
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// $MAGIC2 = (int)0xde120495; //bug
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$MAGIC2 = (int) - 569244523;
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// 64-bit fix
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$MAGIC3 = (int) 2500072158;
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// $MAGIC1 = (int)0x950412de; //bug in PHP 5.0.2, see https://savannah.nongnu.org/bugs/?func=detailitem&item_id=10565
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$MAGIC1 = (int) - 1794895138;
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// $MAGIC2 = (int)0xde120495; //bug
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$MAGIC2 = (int) - 569244523;
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// 64-bit fix
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$MAGIC3 = (int) 2500072158;
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$this->STREAM = $Reader;
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$magic = $this->readint();
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if ($magic == ($MAGIC1 & 0xFFFFFFFF) || $magic == ($MAGIC3 & 0xFFFFFFFF)) { // to make sure it works for 64-bit platforms
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$this->BYTEORDER = 0;
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} elseif ($magic == ($MAGIC2 & 0xFFFFFFFF)) {
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$this->BYTEORDER = 1;
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} else {
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$this->error = 1; // not MO file
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return false;
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}
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$this->STREAM = $Reader;
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$magic = $this->readint();
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if ($magic == ($MAGIC1 & 0xFFFFFFFF) || $magic == ($MAGIC3 & 0xFFFFFFFF)) { // to make sure it works for 64-bit platforms
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$this->BYTEORDER = 0;
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} elseif ($magic == ($MAGIC2 & 0xFFFFFFFF)) {
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$this->BYTEORDER = 1;
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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 = $this->readint();
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// FIXME: Do we care about revision? We should.
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$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 = $this->readint();
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}
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$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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/**
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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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/* 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] = $translation;
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}
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}
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}
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if ($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)$data;
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}
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/**
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* Returns a string from the "originals" table
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*
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* @access private
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* @param int num Offset number of original string
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* @return string Requested string if found, otherwise ''
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*/
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function get_original_string($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)$data;
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}
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/**
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* Returns a string from the "translations" table
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*
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* @access private
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* @param int num Offset number of original string
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* @return string Requested string if found, otherwise ''
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*/
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function get_translation_string($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, $end);
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}
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}
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/**
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* Binary search for string
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*
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* @access private
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* @param string string
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* @param int start (internally used in recursive function)
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* @param int end (internally used in recursive function)
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* @return int string number (offset in originals table)
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*/
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function find_string($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, $end);
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}
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}
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|
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/**
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* Translates a string
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*
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* @access public
|
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* @param string string to be translated
|
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* @return string translated string (or original, if not found)
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*/
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function translate($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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/**
|
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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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|
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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
|
||||
$num = $this->find_string($string);
|
||||
if ($num == -1)
|
||||
return $string;
|
||||
else
|
||||
return $this->get_translation_string($num);
|
||||
}
|
||||
}
|
||||
if ($this->enable_cache) {
|
||||
// Caching enabled, get translated string from cache
|
||||
if (array_key_exists($string, $this->cache_translations))
|
||||
return $this->cache_translations[$string];
|
||||
else
|
||||
return $string;
|
||||
} else {
|
||||
// Caching not enabled, try to find string
|
||||
$num = $this->find_string($string);
|
||||
if ($num == -1)
|
||||
return $string;
|
||||
else
|
||||
return $this->get_translation_string($num);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get possible plural forms from MO header
|
||||
*
|
||||
* @access private
|
||||
* @return string plural form header
|
||||
*/
|
||||
function get_plural_forms() {
|
||||
// lets assume message number 0 is header
|
||||
// this is true, right?
|
||||
$this->load_tables();
|
||||
/**
|
||||
* Get possible plural forms from MO header
|
||||
*
|
||||
* @access private
|
||||
* @return string plural form header
|
||||
*/
|
||||
function get_plural_forms() {
|
||||
// lets assume message number 0 is header
|
||||
// this is true, right?
|
||||
$this->load_tables();
|
||||
|
||||
// cache header field for plural forms
|
||||
if (! is_string($this->pluralheader)) {
|
||||
if ($this->enable_cache) {
|
||||
$header = $this->cache_translations[""];
|
||||
} else {
|
||||
$header = $this->get_translation_string(0);
|
||||
}
|
||||
if (eregi("plural-forms: ([^\n]*)\n", $header, $regs))
|
||||
$expr = $regs[1];
|
||||
else
|
||||
$expr = "nplurals=2; plural=n == 1 ? 0 : 1;";
|
||||
$this->pluralheader = $expr;
|
||||
}
|
||||
return $this->pluralheader;
|
||||
}
|
||||
// cache header field for plural forms
|
||||
if (! is_string($this->pluralheader)) {
|
||||
if ($this->enable_cache) {
|
||||
$header = $this->cache_translations[""];
|
||||
} else {
|
||||
$header = $this->get_translation_string(0);
|
||||
}
|
||||
$header .= "\n"; //make sure our regex matches
|
||||
if (eregi("plural-forms: ([^\n]*)\n", $header, $regs))
|
||||
$expr = $regs[1];
|
||||
else
|
||||
$expr = "nplurals=2; plural=n == 1 ? 0 : 1;";
|
||||
|
||||
/**
|
||||
* Detects which plural form to take
|
||||
*
|
||||
* @access private
|
||||
* @param n count
|
||||
* @return int array index of the right plural form
|
||||
*/
|
||||
function select_string($n) {
|
||||
$string = $this->get_plural_forms();
|
||||
$string = str_replace('nplurals',"\$total",$string);
|
||||
$string = str_replace("n",$n,$string);
|
||||
$string = str_replace('plural',"\$plural",$string);
|
||||
// add parentheses
|
||||
// important since PHP's ternary evaluates from left to right
|
||||
$expr.= ';';
|
||||
$res= '';
|
||||
$p= 0;
|
||||
for ($i= 0; $i < strlen($expr); $i++) {
|
||||
$ch= $expr[$i];
|
||||
switch ($ch) {
|
||||
case '?':
|
||||
$res.= ' ? (';
|
||||
$p++;
|
||||
break;
|
||||
case ':':
|
||||
$res.= ') : (';
|
||||
break;
|
||||
case ';':
|
||||
$res.= str_repeat( ')', $p) . ';';
|
||||
$p= 0;
|
||||
break;
|
||||
default:
|
||||
$res.= $ch;
|
||||
}
|
||||
}
|
||||
$this->pluralheader = $res;
|
||||
}
|
||||
|
||||
# poEdit doesn't put any semicolons, which
|
||||
# results in parse error in eval
|
||||
$string .= ';';
|
||||
return $this->pluralheader;
|
||||
}
|
||||
|
||||
$total = 0;
|
||||
$plural = 0;
|
||||
/**
|
||||
* Detects which plural form to take
|
||||
*
|
||||
* @access private
|
||||
* @param n count
|
||||
* @return int array index of the right plural form
|
||||
*/
|
||||
function select_string($n) {
|
||||
if (is_null($this->select_string_function)) {
|
||||
$string = $this->get_plural_forms();
|
||||
if (preg_match("/nplurals\s*=\s*(\d+)\s*\;\s*plural\s*=\s*(.*?)\;+/", $string, $matches)) {
|
||||
$nplurals = $matches[1];
|
||||
$expression = $matches[2];
|
||||
$expression = str_replace("n", '$n', $expression);
|
||||
} else {
|
||||
$nplurals = 2;
|
||||
$expression = ' $n == 1 ? 0 : 1 ';
|
||||
}
|
||||
$func_body = "
|
||||
\$plural = ($expression);
|
||||
return (\$plural <= $nplurals)? \$plural : \$plural - 1;";
|
||||
$this->select_string_function = create_function('$n', $func_body);
|
||||
}
|
||||
return call_user_func($this->select_string_function, $n);
|
||||
}
|
||||
|
||||
eval("$string");
|
||||
if ($plural >= $total) $plural = $total - 1;
|
||||
return $plural;
|
||||
}
|
||||
/**
|
||||
* Plural version of gettext
|
||||
*
|
||||
* @access public
|
||||
* @param string single
|
||||
* @param string plural
|
||||
* @param string number
|
||||
* @return translated plural form
|
||||
*/
|
||||
function ngettext($single, $plural, $number) {
|
||||
if ($this->short_circuit) {
|
||||
if ($number != 1)
|
||||
return $plural;
|
||||
else
|
||||
return $single;
|
||||
}
|
||||
|
||||
/**
|
||||
* Plural version of gettext
|
||||
*
|
||||
* @access public
|
||||
* @param string single
|
||||
* @param string plural
|
||||
* @param string number
|
||||
* @return translated plural form
|
||||
*/
|
||||
function ngettext($single, $plural, $number) {
|
||||
if ($this->short_circuit) {
|
||||
if ($number != 1)
|
||||
return $plural;
|
||||
else
|
||||
return $single;
|
||||
}
|
||||
// find out the appropriate form
|
||||
$select = $this->select_string($number);
|
||||
|
||||
// find out the appropriate form
|
||||
$select = $this->select_string($number);
|
||||
|
||||
// this should contains all strings separated by NULLs
|
||||
$key = $single.chr(0).$plural;
|
||||
// this should contains all strings separated by NULLs
|
||||
$key = $single.chr(0).$plural;
|
||||
|
||||
|
||||
if ($this->enable_cache) {
|
||||
if (! array_key_exists($key, $this->cache_translations)) {
|
||||
return ($number != 1) ? $plural : $single;
|
||||
} else {
|
||||
$result = $this->cache_translations[$key];
|
||||
$list = explode(chr(0), $result);
|
||||
return $list[$select];
|
||||
}
|
||||
} else {
|
||||
$num = $this->find_string($key);
|
||||
if ($num == -1) {
|
||||
return ($number != 1) ? $plural : $single;
|
||||
} else {
|
||||
$result = $this->get_translation_string($num);
|
||||
$list = explode(chr(0), $result);
|
||||
return $list[$select];
|
||||
}
|
||||
}
|
||||
}
|
||||
if ($this->enable_cache) {
|
||||
if (! array_key_exists($key, $this->cache_translations)) {
|
||||
return ($number != 1) ? $plural : $single;
|
||||
} else {
|
||||
$result = $this->cache_translations[$key];
|
||||
$list = explode(chr(0), $result);
|
||||
return $list[$select];
|
||||
}
|
||||
} else {
|
||||
$num = $this->find_string($key);
|
||||
if ($num == -1) {
|
||||
return ($number != 1) ? $plural : $single;
|
||||
} else {
|
||||
$result = $this->get_translation_string($num);
|
||||
$list = explode(chr(0), $result);
|
||||
return $list[$select];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user