--- /dev/null
+<?php
+/**
+ * Copyright (c) 2003 Danilo Segan <danilo@kvota.net>.
+ *
+ * This file is part of PHP-gettext.
+ *
+ * PHP-gettext is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * PHP-gettext is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with PHP-gettext; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * @package squirrelmail
+ * @subpackage i18n
+ */
+
+/**
+ * Class that uses parsed translation input objects
+ * @package squirrelmail
+ * @subpackage i18n
+ */
+class gettext_reader {
+ /**
+ * holds error code (0 if no error)
+ * @var integer
+ * @access public
+ */
+ var $error = 0;
+ /**
+ * specifies the byte order: 0 low endian, 1 big endian
+ * @var integer
+ * @access private
+ */
+ var $BYTEORDER = 0;
+ /**
+ * input object data
+ * @var object
+ * @access private
+ */
+ var $STREAM = NULL;
+
+ /**
+ *
+ */
+ function readint() {
+ // Reads 4 byte value from $FD and puts it in int
+ // $BYTEORDER specifies the byte order: 0 low endian, 1 big endian
+ for ($i=0; $i<4; $i++) {
+ $byte[$i]=ord($this->STREAM->read(1));
+ }
+ //print sprintf("pos: %d\n",$this->STREAM->currentpos());
+ if ($this->BYTEORDER == 0)
+ return (int)(($byte[0]) | ($byte[1]<<8) | ($byte[2]<<16) | ($byte[3]<<24));
+ else
+ return (int)(($byte[3]) | ($byte[2]<<8) | ($byte[1]<<16) | ($byte[0]<<24));
+ }
+
+ /**
+ * constructor that requires StreamReader object
+ * @param object $Reader
+ * @return boolean false, if some error with stream
+ */
+ function gettext_reader($Reader) {
+ $MAGIC1 = (int) ((222) | (18<<8) | (4<<16) | (149<<24));
+ $MAGIC2 = (int) ((149) | (4<<8) | (18<<16) | (222<<24));
+
+ $this->STREAM = $Reader;
+ if ($this->STREAM->error>0) {
+ $this->error=1;
+ return false;
+ }
+ $magic = $this->readint();
+ if ($magic == $MAGIC1) {
+ $this->BYTEORDER = 0;
+ } elseif ($magic == $MAGIC2) {
+ $this->BYTEORDER = 1;
+ } else {
+ $this->error = 1; // not MO file
+ return false;
+ }
+
+ // FIXME: Do we care about revision? We should.
+ $revision = $this->readint();
+
+ $total = $this->readint();
+ $originals = $this->readint();
+ $translations = $this->readint();
+
+ $this->total = $total;
+ $this->originals = $originals;
+ $this->translations = $translations;
+
+ // Here we store already found translations
+ $this->_HASHED = array();
+ }
+
+ /**
+ * @param boolean $translations do translation have to be loaded
+ */
+ function load_tables($translations=false) {
+ // if tables are loaded do not load them again
+ if (!isset($this->ORIGINALS)) {
+ $this->ORIGINALS = array();
+ $this->STREAM->seekto($this->originals);
+ for ($i=0; $i<$this->total; $i++) {
+ $len = $this->readint();
+ $ofs = $this->readint();
+ $this->ORIGINALS[] = array($len,$ofs);
+ }
+ }
+
+ // similar for translations
+ if ($translations and !isset($this->TRANSLATIONS)) {
+ $this->TRANSLATIONS = array();
+ $this->STREAM->seekto($this->translations);
+ for ($i=0; $i<$this->total; $i++) {
+ $len = $this->readint();
+ $ofs = $this->readint();
+ $this->TRANSLATIONS[] = array($len,$ofs);
+ }
+ }
+ }
+
+ /**
+ * get a string with particular number
+ * @param integer $num
+ * @return string untranslated string
+ */
+ function get_string_number($num) {
+ // TODO: Add simple hashing [check array, add if not already there]
+ $this->load_tables();
+ $meta = $this->ORIGINALS[$num];
+ $length = $meta[0];
+ $offset = $meta[1];
+ $this->STREAM->seekto($offset);
+ $data = $this->STREAM->read($length);
+ return (string)$data;
+ }
+
+ /**
+ * get translated string with particular number
+ * @param integer $num
+ * @return string translated string
+ */
+ function get_translation_number($num) {
+ // get a string with particular number
+ // TODO: Add simple hashing [check array, add if not already there]
+ $this->load_tables(true);
+ $meta = $this->TRANSLATIONS[$num];
+ $length = $meta[0];
+ $offset = $meta[1];
+ $this->STREAM->seekto($offset);
+ $data = $this->STREAM->read($length);
+ return (string)$data;
+ }
+
+ /**
+ * binary search for string
+ * @param string $string
+ * @param integer $start
+ * @param integer $end
+ */
+ function find_string($string, $start,$end) {
+ //print "start: $start, end: $end\n";
+ // Simple hashing to improve speed
+ if (isset($this->_HASHED[$string])) return $this->_HASHED[$string];
+
+ if (abs($start-$end)<=1) {
+ // we're done, if it's not it, bye bye
+ $txt = $this->get_string_number($start);
+ if ($string == $txt) {
+ $this->_HASHED[$string] = $start;
+ return $start;
+ } else
+ return -1;
+ } elseif ($start>$end) {
+ return $this->find_string($string,$end,$start);
+ } else {
+ $half = (int)(($start+$end)/2);
+ $tst = $this->get_string_number($half);
+ $cmp = strcmp($string,$tst);
+ if ($cmp == 0) {
+ $this->_HASHED[$string] = $half;
+ return $half;
+ } elseif ($cmp<0)
+ return $this->find_string($string,$start,$half);
+ else
+ return $this->find_string($string,$half,$end);
+ }
+ }
+
+ /**
+ * translate string
+ * @param string $string English string
+ * @return string translated string
+ */
+ function translate($string) {
+ if ($this->error > 0) return $string;
+ $num = $this->find_string($string, 0, $this->total);
+ if ($num == -1)
+ return $string;
+ else
+ return $this->get_translation_number($num);
+ }
+
+ /**
+ * extract plural forms header
+ * @return string plural-forms header string
+ */
+ function get_plural_forms() {
+ // lets assume message number 0 is header
+ // this is true, right?
+
+ // cache header field for plural forms
+ if (isset($this->pluralheader) && is_string($this->pluralheader))
+ return $this->pluralheader;
+ else {
+ $header = $this->get_translation_number(0);
+
+ if (eregi("plural-forms: (.*)\n",$header,$regs)) {
+ $expr = $regs[1];
+ } else {
+ $expr = "nplurals=2; plural=n == 1 ? 0 : 1;";
+ }
+ $this->pluralheader = $expr;
+ return $expr;
+ }
+ }
+
+ /**
+ * find out the appropriate form number
+ * @param integer $n count
+ * @return integer
+ */
+ function select_string($n) {
+ $string = $this->get_plural_forms();
+ $string = str_replace('nplurals',"\$total",$string);
+ $string = str_replace("n",$n,$string);
+ $string = str_replace('plural',"\$plural",$string);
+
+ $total = 0;
+ $plural = 0;
+
+ eval("$string");
+ if ($plural>=$total) $plural = 0;
+ return $plural;
+ }
+
+ /**
+ * translate string with singular/plural forms
+ * @param string $single English singural form of translation
+ * @param string $plural English plural form of translation
+ * @param string $number count
+ * @return string
+ */
+ function ngettext($single, $plural, $number) {
+ if ($this->error > 0) {
+ $result=-1;
+ } else {
+ // find out the appropriate form
+ $select = $this->select_string($number);
+
+ // this should contains all strings separated by NULLs
+ $result = $this->find_string($single.chr(0).$plural,0,$this->total);
+ }
+ if ($result == -1) {
+ if ($number != 1) return $plural;
+ else return $single;
+ } else {
+ $result = $this->get_translation_number($result);
+
+ // lets try to parse all the NUL staff
+ //$result = "proba0".chr(0)."proba1".chr(0)."proba2";
+ $list = explode (chr(0), $result);
+ return $list[$select];
+ }
+ }
+}
+?>
\ No newline at end of file
--- /dev/null
+<?php
+/**
+ * Copyright (c) 2003 Danilo Segan <danilo@kvota.net>.
+ *
+ * This file is part of PHP-gettext.
+ *
+ * PHP-gettext is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * PHP-gettext is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with PHP-gettext; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * @package squirrelmail
+ * @subpackage i18n
+ */
+
+/**
+ * Class that is used to read .mo files.
+ * @package squirrelmail
+ * @subpackage i18n
+ */
+class FileReader {
+ /**
+ * Current position in file
+ * @var integer
+ */
+ var $_pos;
+ /**
+ * File descriptor
+ * @var resource
+ */
+ var $_fd;
+ /**
+ * File size
+ * @var integer
+ */
+ var $_length;
+ /**
+ * contains error codes
+ *
+ * 2 = File doesn't exist
+ * 3 = Can't read file
+ * @var integer
+ */
+ var $error=0;
+
+ /**
+ * reads translation file and fills translation input object properties
+ * @param string $filename path to file
+ * @return boolean false there is a problem with $filename
+ */
+ function FileReader($filename) {
+ if (file_exists($filename)) {
+
+ $this->_length=filesize($filename);
+ error_log($this->_length);
+ $this->_pos = 0;
+ $this->_fd = fopen($filename,'rb');
+ if (!$this->_fd) {
+ $this->error = 3; // Cannot read file, probably permissions
+ return false;
+ }
+ } else {
+ $this->error = 2; // File doesn't exist
+ return false;
+ }
+ }
+
+ /**
+ * reads data from current position
+ * @param integer $bytes number of bytes to read
+ * @return string read data
+ */
+ function read($bytes) {
+ fseek($this->_fd, $this->_pos);
+ $data = fread($this->_fd, $bytes);
+ $this->_pos = ftell($this->_fd);
+
+ return $data;
+ }
+
+ /**
+ * Moves to defined position in a file
+ * @param integer $pos position
+ * @return integer current position
+ */
+ function seekto($pos) {
+ fseek($this->_fd, $pos);
+ $this->_pos = ftell($this->_fd);
+ return $this->_pos;
+ }
+
+ /**
+ * return current position
+ * @return integer current position
+ */
+ function currentpos() {
+ return $this->_pos;
+ }
+
+ /**
+ * return file length
+ * @return integer file length
+ */
+ function length() {
+ return $this->_length;
+ }
+
+ /**
+ * close translation file
+ */
+ function close() {
+ fclose($this->_fd);
+ }
+}
+?>
\ No newline at end of file
projects / squirrelmail.git / commitdiff