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authornikrou <nikrou@piwigo.org>2010-03-02 14:54:22 +0000
committernikrou <nikrou@piwigo.org>2010-03-02 14:54:22 +0000
commit2e890e9597da29346a1fbe0db45f48e4a2be86e7 (patch)
treef189c8320f38340bc3d7a94d799e05e0587d95cb /include/php-gettext
parent35694a636ef34dba5384e1a530b837208b9e55f9 (diff)
Feature 1451 : localization with gettext
Use php-gettext (developpement version rev43, because of php5.3) as fallback Use native language (english) instead of key for translation Keep directory en_UK for english customization Need some refactoring for plurals Todo : managing plugins in the same way git-svn-id: http://piwigo.org/svn/trunk@5021 68402e56-0260-453c-a942-63ccdbb3a9ee
Diffstat (limited to '')
-rw-r--r--include/php-gettext/gettext.inc.php418
-rw-r--r--include/php-gettext/gettext.php408
-rw-r--r--include/php-gettext/streams.php167
3 files changed, 993 insertions, 0 deletions
diff --git a/include/php-gettext/gettext.inc.php b/include/php-gettext/gettext.inc.php
new file mode 100644
index 000000000..69d4d7c2a
--- /dev/null
+++ b/include/php-gettext/gettext.inc.php
@@ -0,0 +1,418 @@
+<?php
+/*
+ Copyright (c) 2005 Steven Armstrong <sa at c-area dot ch>
+ Copyright (c) 2009 Danilo Segan <danilo@kvota.net>
+
+ Drop in replacement for native gettext.
+
+ 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
+
+*/
+/*
+LC_CTYPE 0
+LC_NUMERIC 1
+LC_TIME 2
+LC_COLLATE 3
+LC_MONETARY 4
+LC_MESSAGES 5
+LC_ALL 6
+*/
+
+
+// LC_MESSAGES is not available if php-gettext is not loaded
+// while the other constants are already available from session extension.
+if (!defined('LC_MESSAGES')) {
+ define('LC_MESSAGES', 5);
+}
+
+require('streams.php');
+require('gettext.php');
+
+
+// Variables
+
+global $text_domains, $default_domain, $LC_CATEGORIES, $EMULATEGETTEXT, $CURRENTLOCALE;
+$text_domains = array();
+$default_domain = 'messages';
+$LC_CATEGORIES = array('LC_CTYPE', 'LC_NUMERIC', 'LC_TIME', 'LC_COLLATE', 'LC_MONETARY', 'LC_MESSAGES', 'LC_ALL');
+$EMULATEGETTEXT = 0;
+$CURRENTLOCALE = '';
+
+/* Class to hold a single domain included in $text_domains. */
+class domain {
+ var $l10n;
+ var $path;
+ var $codeset;
+}
+
+// Utility functions
+
+/**
+ * Return a list of locales to try for any POSIX-style locale specification.
+ */
+function get_list_of_locales($locale) {
+ /* Figure out all possible locale names and start with the most
+ * specific ones. I.e. for sr_CS.UTF-8@latin, look through all of
+ * sr_CS.UTF-8@latin, sr_CS@latin, sr@latin, sr_CS.UTF-8, sr_CS, sr.
+ */
+ $locale_names = array();
+ $lang = NULL;
+ $country = NULL;
+ $charset = NULL;
+ $modifier = NULL;
+ if ($locale) {
+ if (preg_match("/^(?P<lang>[a-z]{2,3})" // language code
+ ."(?:_(?P<country>[A-Z]{2}))?" // country code
+ ."(?:\.(?P<charset>[-A-Za-z0-9_]+))?" // charset
+ ."(?:@(?P<modifier>[-A-Za-z0-9_]+))?$/", // @ modifier
+ $locale, $matches)) {
+
+ if (isset($matches["lang"])) $lang = $matches["lang"];
+ if (isset($matches["country"])) $country = $matches["country"];
+ if (isset($matches["charset"])) $charset = $matches["charset"];
+ if (isset($matches["modifier"])) $modifier = $matches["modifier"];
+
+ if ($modifier) {
+ if ($country) {
+ if ($charset)
+ array_push($locale_names, "${lang}_$country.$charset@$modifier");
+ array_push($locale_names, "${lang}_$country@$modifier");
+ } elseif ($charset)
+ array_push($locale_names, "${lang}.$charset@$modifier");
+ array_push($locale_names, "$lang@$modifier");
+ }
+ if ($country) {
+ if ($charset)
+ array_push($locale_names, "${lang}_$country.$charset");
+ array_push($locale_names, "${lang}_$country");
+ } elseif ($charset)
+ array_push($locale_names, "${lang}.$charset");
+ array_push($locale_names, $lang);
+ }
+
+ // If the locale name doesn't match POSIX style, just include it as-is.
+ if (!in_array($locale, $locale_names))
+ array_push($locale_names, $locale);
+ }
+ return $locale_names;
+}
+
+/**
+ * Utility function to get a StreamReader for the given text domain.
+ */
+function _get_reader($domain=null, $category=5, $enable_cache=true) {
+ global $text_domains, $default_domain, $LC_CATEGORIES;
+ if (!isset($domain)) $domain = $default_domain;
+ if (!isset($text_domains[$domain]->l10n)) {
+ // get the current locale
+ $locale = _setlocale(LC_MESSAGES, 0);
+ $bound_path = isset($text_domains[$domain]->path) ?
+ $text_domains[$domain]->path : './';
+ $subpath = $LC_CATEGORIES[$category] ."/$domain.mo";
+
+ $locale_names = get_list_of_locales($locale);
+ $input = null;
+ foreach ($locale_names as $locale) {
+ $full_path = $bound_path . $locale . "/" . $subpath;
+ if (file_exists($full_path)) {
+ $input = new FileReader($full_path);
+ break;
+ }
+ }
+
+ if (!array_key_exists($domain, $text_domains)) {
+ // Initialize an empty domain object.
+ $text_domains[$domain] = new domain();
+ }
+ $text_domains[$domain]->l10n = new gettext_reader($input,
+ $enable_cache);
+ }
+ return $text_domains[$domain]->l10n;
+}
+
+/**
+ * Returns whether we are using our emulated gettext API or PHP built-in one.
+ */
+function locale_emulation() {
+ global $EMULATEGETTEXT;
+ return $EMULATEGETTEXT;
+}
+
+/**
+ * Checks if the current locale is supported on this system.
+ */
+function _check_locale() {
+ global $EMULATEGETTEXT;
+ return !$EMULATEGETTEXT;
+}
+
+/**
+ * Get the codeset for the given domain.
+ */
+function _get_codeset($domain=null) {
+ global $text_domains, $default_domain, $LC_CATEGORIES;
+ if (!isset($domain)) $domain = $default_domain;
+ return (isset($text_domains[$domain]->codeset))? $text_domains[$domain]->codeset : ini_get('mbstring.internal_encoding');
+}
+
+/**
+ * Convert the given string to the encoding set by bind_textdomain_codeset.
+ */
+function _encode($text) {
+ $source_encoding = mb_detect_encoding($text);
+ $target_encoding = _get_codeset();
+ if ($source_encoding != $target_encoding) {
+ return mb_convert_encoding($text, $target_encoding, $source_encoding);
+ }
+ else {
+ return $text;
+ }
+}
+
+
+
+
+// Custom implementation of the standard gettext related functions
+
+/**
+ * Returns passed in $locale, or environment variable $LANG if $locale == ''.
+ */
+function _get_default_locale($locale) {
+ if ($locale == '') // emulate variable support
+ return getenv('LANG');
+ else
+ return $locale;
+}
+
+/**
+ * Sets a requested locale, if needed emulates it.
+ */
+function _setlocale($category, $locale) {
+ global $CURRENTLOCALE, $EMULATEGETTEXT;
+ if ($locale === 0) { // use === to differentiate between string "0"
+ if ($CURRENTLOCALE != '')
+ return $CURRENTLOCALE;
+ else
+ // obey LANG variable, maybe extend to support all of LC_* vars
+ // even if we tried to read locale without setting it first
+ return _setlocale($category, $CURRENTLOCALE);
+ } else {
+ if (function_exists('setlocale')) {
+ $ret = setlocale($category, $locale);
+ if (($locale == '' and !$ret) or // failed setting it by env
+ ($locale != '' and $ret != $locale)) { // failed setting it
+ // Failed setting it according to environment.
+ $CURRENTLOCALE = _get_default_locale($locale);
+ $EMULATEGETTEXT = 1;
+ } else {
+ $CURRENTLOCALE = $ret;
+ $EMULATEGETTEXT = 0;
+ }
+ } else {
+ // No function setlocale(), emulate it all.
+ $CURRENTLOCALE = _get_default_locale($locale);
+ $EMULATEGETTEXT = 1;
+ }
+ // Allow locale to be changed on the go for one translation domain.
+ global $text_domains, $default_domain;
+ unset($text_domains[$default_domain]->l10n);
+ return $CURRENTLOCALE;
+ }
+}
+
+/**
+ * Sets the path for a domain.
+ */
+function _bindtextdomain($domain, $path) {
+ global $text_domains;
+ // ensure $path ends with a slash ('/' should work for both, but lets still play nice)
+ if (substr(php_uname(), 0, 7) == "Windows") {
+ if ($path[strlen($path)-1] != '\\' and $path[strlen($path)-1] != '/')
+ $path .= '\\';
+ } else {
+ if ($path[strlen($path)-1] != '/')
+ $path .= '/';
+ }
+ if (!array_key_exists($domain, $text_domains)) {
+ // Initialize an empty domain object.
+ $text_domains[$domain] = new domain();
+ }
+ $text_domains[$domain]->path = $path;
+}
+
+/**
+ * Specify the character encoding in which the messages from the DOMAIN message catalog will be returned.
+ */
+function _bind_textdomain_codeset($domain, $codeset) {
+ global $text_domains;
+ $text_domains[$domain]->codeset = $codeset;
+}
+
+/**
+ * Sets the default domain.
+ */
+function _textdomain($domain) {
+ global $default_domain;
+ $default_domain = $domain;
+}
+
+/**
+ * Lookup a message in the current domain.
+ */
+function _gettext($msgid) {
+ $l10n = _get_reader();
+ //return $l10n->translate($msgid);
+ return _encode($l10n->translate($msgid));
+}
+/**
+ * Alias for gettext.
+ */
+function __($msgid) {
+ return _gettext($msgid);
+}
+/**
+ * Plural version of gettext.
+ */
+function _ngettext($single, $plural, $number) {
+ $l10n = _get_reader();
+ //return $l10n->ngettext($single, $plural, $number);
+ return _encode($l10n->ngettext($single, $plural, $number));
+}
+
+/**
+ * Override the current domain.
+ */
+function _dgettext($domain, $msgid) {
+ $l10n = _get_reader($domain);
+ //return $l10n->translate($msgid);
+ return _encode($l10n->translate($msgid));
+}
+/**
+ * Plural version of dgettext.
+ */
+function _dngettext($domain, $single, $plural, $number) {
+ $l10n = _get_reader($domain);
+ //return $l10n->ngettext($single, $plural, $number);
+ return _encode($l10n->ngettext($single, $plural, $number));
+}
+
+/**
+ * Overrides the domain and category for a single lookup.
+ */
+function _dcgettext($domain, $msgid, $category) {
+ $l10n = _get_reader($domain, $category);
+ //return $l10n->translate($msgid);
+ return _encode($l10n->translate($msgid));
+}
+/**
+ * Plural version of dcgettext.
+ */
+function _dcngettext($domain, $single, $plural, $number, $category) {
+ $l10n = _get_reader($domain, $category);
+ //return $l10n->ngettext($single, $plural, $number);
+ return _encode($l10n->ngettext($single, $plural, $number));
+}
+
+
+
+// Wrappers to use if the standard gettext functions are available, but the current locale is not supported by the system.
+// Use the standard impl if the current locale is supported, use the custom impl otherwise.
+
+function T_setlocale($category, $locale) {
+ return _setlocale($category, $locale);
+}
+
+function T_bindtextdomain($domain, $path) {
+ if (_check_locale()) return bindtextdomain($domain, $path);
+ else return _bindtextdomain($domain, $path);
+}
+function T_bind_textdomain_codeset($domain, $codeset) {
+ // bind_textdomain_codeset is available only in PHP 4.2.0+
+ if (_check_locale() and function_exists('bind_textdomain_codeset')) return bind_textdomain_codeset($domain, $codeset);
+ else return _bind_textdomain_codeset($domain, $codeset);
+}
+function T_textdomain($domain) {
+ if (_check_locale()) return textdomain($domain);
+ else return _textdomain($domain);
+}
+function T_gettext($msgid) {
+ if (_check_locale()) return gettext($msgid);
+ else return _gettext($msgid);
+}
+function T_($msgid) {
+ if (_check_locale()) return _($msgid);
+ return __($msgid);
+}
+function T_ngettext($single, $plural, $number) {
+ if (_check_locale()) return ngettext($single, $plural, $number);
+ else return _ngettext($single, $plural, $number);
+}
+function T_dgettext($domain, $msgid) {
+ if (_check_locale()) return dgettext($domain, $msgid);
+ else return _dgettext($domain, $msgid);
+}
+function T_dngettext($domain, $single, $plural, $number) {
+ if (_check_locale()) return dngettext($domain, $single, $plural, $number);
+ else return _dngettext($domain, $single, $plural, $number);
+}
+function T_dcgettext($domain, $msgid, $category) {
+ if (_check_locale()) return dcgettext($domain, $msgid, $category);
+ else return _dcgettext($domain, $msgid, $category);
+}
+function T_dcngettext($domain, $single, $plural, $number, $category) {
+ if (_check_locale()) return dcngettext($domain, $single, $plural, $number, $category);
+ else return _dcngettext($domain, $single, $plural, $number, $category);
+}
+
+
+
+// Wrappers used as a drop in replacement for the standard gettext functions
+
+if (!function_exists('gettext')) {
+ function bindtextdomain($domain, $path) {
+ return _bindtextdomain($domain, $path);
+ }
+ function bind_textdomain_codeset($domain, $codeset) {
+ return _bind_textdomain_codeset($domain, $codeset);
+ }
+ function textdomain($domain) {
+ return _textdomain($domain);
+ }
+ function gettext($msgid) {
+ return _gettext($msgid);
+ }
+ function _($msgid) {
+ return __($msgid);
+ }
+ function ngettext($single, $plural, $number) {
+ return _ngettext($single, $plural, $number);
+ }
+ function dgettext($domain, $msgid) {
+ return _dgettext($domain, $msgid);
+ }
+ function dngettext($domain, $single, $plural, $number) {
+ return _dngettext($domain, $single, $plural, $number);
+ }
+ function dcgettext($domain, $msgid, $category) {
+ return _dcgettext($domain, $msgid, $category);
+ }
+ function dcngettext($domain, $single, $plural, $number, $category) {
+ return _dcngettext($domain, $single, $plural, $number, $category);
+ }
+}
+
+?>
diff --git a/include/php-gettext/gettext.php b/include/php-gettext/gettext.php
new file mode 100644
index 000000000..f11da2e27
--- /dev/null
+++ b/include/php-gettext/gettext.php
@@ -0,0 +1,408 @@
+<?php
+/*
+ Copyright (c) 2003, 2009 Danilo Segan <danilo@kvota.net>.
+ Copyright (c) 2005 Nico Kaiser <nico@siriux.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
+
+*/
+
+/**
+ * Provides a simple gettext replacement that works independently from
+ * the system's gettext abilities.
+ * It can read MO files and use them for translating strings.
+ * The files are passed to gettext_reader as a Stream (see streams.php)
+ *
+ * This version has the ability to cache all strings and translations to
+ * speed up the string lookup.
+ * While the cache is enabled by default, it can be switched off with the
+ * second parameter in the constructor (e.g. whenusing very large MO files
+ * that you don't want to keep in memory)
+ */
+class gettext_reader {
+ //public:
+ var $error = 0; // public variable that holds error code (0 if no error)
+
+ //private:
+ var $BYTEORDER = 0; // 0: low endian, 1: big endian
+ var $STREAM = NULL;
+ var $short_circuit = false;
+ var $enable_cache = false;
+ var $originals = NULL; // offset of original table
+ var $translations = NULL; // offset of translation table
+ var $pluralheader = NULL; // cache header field for plural forms
+ var $total = 0; // total string count
+ var $table_originals = NULL; // table for original strings (offsets)
+ var $table_translations = NULL; // table for translated strings (offsets)
+ var $cache_translations = NULL; // original -> translation mapping
+
+
+ /* Methods */
+
+
+ /**
+ * Reads a 32bit Integer from the Stream
+ *
+ * @access private
+ * @return Integer from the Stream
+ */
+ function readint() {
+ if ($this->BYTEORDER == 0) {
+ // low endian
+ $input=unpack('V', $this->STREAM->read(4));
+ return array_shift($input);
+ } else {
+ // big endian
+ $input=unpack('N', $this->STREAM->read(4));
+ return array_shift($input);
+ }
+ }
+
+ function read($bytes) {
+ return $this->STREAM->read($bytes);
+ }
+
+ /**
+ * Reads an array of Integers from the Stream
+ *
+ * @param int count How many elements should be read
+ * @return Array of Integers
+ */
+ function readintarray($count) {
+ if ($this->BYTEORDER == 0) {
+ // low endian
+ return unpack('V'.$count, $this->STREAM->read(4 * $count));
+ } else {
+ // big endian
+ return unpack('N'.$count, $this->STREAM->read(4 * $count));
+ }
+ }
+
+ /**
+ * Constructor
+ *
+ * @param object Reader the StreamReader object
+ * @param boolean enable_cache Enable or disable caching of strings (default on)
+ */
+ function gettext_reader($Reader, $enable_cache = true) {
+ // If there isn't a StreamReader, turn on short circuit mode.
+ if (! $Reader || isset($Reader->error) ) {
+ $this->short_circuit = true;
+ return;
+ }
+
+ // Caching can be turned off
+ $this->enable_cache = $enable_cache;
+
+ $MAGIC1 = "\x95\x04\x12\xde";
+ $MAGIC2 = "\xde\x12\x04\x95";
+
+ $this->STREAM = $Reader;
+ $magic = $this->read(4);
+ if ($magic == $MAGIC1) {
+ $this->BYTEORDER = 1;
+ } elseif ($magic == $MAGIC2) {
+ $this->BYTEORDER = 0;
+ } else {
+ $this->error = 1; // not MO file
+ return false;
+ }
+
+ // FIXME: Do we care about revision? We should.
+ $revision = $this->readint();
+
+ $this->total = $this->readint();
+ $this->originals = $this->readint();
+ $this->translations = $this->readint();
+ }
+
+ /**
+ * Loads the translation tables from the MO file into the cache
+ * If caching is enabled, also loads all strings into a cache
+ * to speed up translation lookups
+ *
+ * @access private
+ */
+ function load_tables() {
+ if (is_array($this->cache_translations) &&
+ is_array($this->table_originals) &&
+ is_array($this->table_translations))
+ return;
+
+ /* get original and translations tables */
+ $this->STREAM->seekto($this->originals);
+ $this->table_originals = $this->readintarray($this->total * 2);
+ $this->STREAM->seekto($this->translations);
+ $this->table_translations = $this->readintarray($this->total * 2);
+
+ if ($this->enable_cache) {
+ $this->cache_translations = array ();
+ /* read all strings in the cache */
+ for ($i = 0; $i < $this->total; $i++) {
+ $this->STREAM->seekto($this->table_originals[$i * 2 + 2]);
+ $original = $this->STREAM->read($this->table_originals[$i * 2 + 1]);
+ $this->STREAM->seekto($this->table_translations[$i * 2 + 2]);
+ $translation = $this->STREAM->read($this->table_translations[$i * 2 + 1]);
+ $this->cache_translations[$original] = $translation;
+ }
+ }
+ }
+
+ /**
+ * Returns a string from the "originals" table
+ *
+ * @access private
+ * @param int num Offset number of original string
+ * @return string Requested string if found, otherwise ''
+ */
+ function get_original_string($num) {
+ $length = $this->table_originals[$num * 2 + 1];
+ $offset = $this->table_originals[$num * 2 + 2];
+ if (! $length)
+ return '';
+ $this->STREAM->seekto($offset);
+ $data = $this->STREAM->read($length);
+ return (string)$data;
+ }
+
+ /**
+ * Returns a string from the "translations" table
+ *
+ * @access private
+ * @param int num Offset number of original string
+ * @return string Requested string if found, otherwise ''
+ */
+ function get_translation_string($num) {
+ $length = $this->table_translations[$num * 2 + 1];
+ $offset = $this->table_translations[$num * 2 + 2];
+ if (! $length)
+ return '';
+ $this->STREAM->seekto($offset);
+ $data = $this->STREAM->read($length);
+ return (string)$data;
+ }
+
+ /**
+ * Binary search for string
+ *
+ * @access private
+ * @param string string
+ * @param int start (internally used in recursive function)
+ * @param int end (internally used in recursive function)
+ * @return int string number (offset in originals table)
+ */
+ function find_string($string, $start = -1, $end = -1) {
+ if (($start == -1) or ($end == -1)) {
+ // find_string is called with only one parameter, set start end end
+ $start = 0;
+ $end = $this->total;
+ }
+ if (abs($start - $end) <= 1) {
+ // We're done, now we either found the string, or it doesn't exist
+ $txt = $this->get_original_string($start);
+ if ($string == $txt)
+ return $start;
+ else
+ return -1;
+ } else if ($start > $end) {
+ // start > end -> turn around and start over
+ return $this->find_string($string, $end, $start);
+ } else {
+ // Divide table in two parts
+ $half = (int)(($start + $end) / 2);
+ $cmp = strcmp($string, $this->get_original_string($half));
+ if ($cmp == 0)
+ // string is exactly in the middle => return it
+ return $half;
+ else if ($cmp < 0)
+ // The string is in the upper half
+ return $this->find_string($string, $start, $half);
+ else
+ // The string is in the lower half
+ return $this->find_string($string, $half, $end);
+ }
+ }
+
+ /**
+ * Translates a string
+ *
+ * @access public
+ * @param string string to be translated
+ * @return string translated string (or original, if not found)
+ */
+ function translate($string) {
+ if ($this->short_circuit)
+ return $string;
+ $this->load_tables();
+
+ if ($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);
+ }
+ }
+
+ /**
+ * Sanitize plural form expression for use in PHP eval call.
+ *
+ * @access private
+ * @return string sanitized plural form expression
+ */
+ function sanitize_plural_expression($expr) {
+ // Get rid of disallowed characters.
+ $expr = preg_replace('@[^a-zA-Z0-9_:;\(\)\?\|\&=!<>+*/\%-]@', '', $expr);
+
+ // Add parenthesis for tertiary '?' operator.
+ $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;
+ }
+ }
+ return $res;
+ }
+
+ /**
+ * Parse full PO header and extract only plural forms line.
+ *
+ * @access private
+ * @return string verbatim plural form header field
+ */
+ function extract_plural_forms_header_from_po_header($header) {
+ if (preg_match("/(^|\n)plural-forms: ([^\n]*)\n/i", $header, $regs))
+ $expr = $regs[2];
+ else
+ $expr = "nplurals=2; plural=n == 1 ? 0 : 1;";
+ return $expr;
+ }
+
+ /**
+ * 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);
+ }
+ $expr = $this->extract_plural_forms_header_from_po_header($header);
+ $this->pluralheader = $this->sanitize_plural_expression($expr);
+ }
+ return $this->pluralheader;
+ }
+
+ /**
+ * Detects which plural form to take
+ *
+ * @access private
+ * @param n count
+ * @return int array index of the right plural form
+ */
+ function select_string($n) {
+ $string = $this->get_plural_forms();
+ $string = str_replace('nplurals',"\$total",$string);
+ $string = str_replace("n",$n,$string);
+ $string = str_replace('plural',"\$plural",$string);
+
+ $total = 0;
+ $plural = 0;
+
+ eval("$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;
+ }
+
+ // find out the appropriate form
+ $select = $this->select_string($number);
+
+ // 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];
+ }
+ }
+ }
+
+}
+
+?>
diff --git a/include/php-gettext/streams.php b/include/php-gettext/streams.php
new file mode 100644
index 000000000..3cdc1584e
--- /dev/null
+++ b/include/php-gettext/streams.php
@@ -0,0 +1,167 @@
+<?php
+/*
+ Copyright (c) 2003, 2005, 2006, 2009 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
+
+*/
+
+
+ // Simple class to wrap file streams, string streams, etc.
+ // seek is essential, and it should be byte stream
+class StreamReader {
+ // should return a string [FIXME: perhaps return array of bytes?]
+ function read($bytes) {
+ return false;
+ }
+
+ // should return new position
+ function seekto($position) {
+ return false;
+ }
+
+ // returns current position
+ function currentpos() {
+ return false;
+ }
+
+ // returns length of entire stream (limit for seekto()s)
+ function length() {
+ return false;
+ }
+};
+
+class StringReader {
+ var $_pos;
+ var $_str;
+
+ function StringReader($str='') {
+ $this->_str = $str;
+ $this->_pos = 0;
+ }
+
+ function read($bytes) {
+ $data = substr($this->_str, $this->_pos, $bytes);
+ $this->_pos += $bytes;
+ if (strlen($this->_str)<$this->_pos)
+ $this->_pos = strlen($this->_str);
+
+ return $data;
+ }
+
+ function seekto($pos) {
+ $this->_pos = $pos;
+ if (strlen($this->_str)<$this->_pos)
+ $this->_pos = strlen($this->_str);
+ return $this->_pos;
+ }
+
+ function currentpos() {
+ return $this->_pos;
+ }
+
+ function length() {
+ return strlen($this->_str);
+ }
+
+};
+
+
+class FileReader {
+ var $_pos;
+ var $_fd;
+ var $_length;
+
+ function FileReader($filename) {
+ if (file_exists($filename)) {
+
+ $this->_length=filesize($filename);
+ $this->_pos = 0;
+ $this->_fd = fopen($filename,'rb');
+ if (!$this->_fd) {
+ $this->error = 3; // Cannot read file, probably permissions
+ return false;
+ }
+ } else {
+ $this->error = 2; // File doesn't exist
+ return false;
+ }
+ }
+
+ function read($bytes) {
+ if ($bytes) {
+ fseek($this->_fd, $this->_pos);
+
+ // PHP 5.1.1 does not read more than 8192 bytes in one fread()
+ // the discussions at PHP Bugs suggest it's the intended behaviour
+ $data = '';
+ while ($bytes > 0) {
+ $chunk = fread($this->_fd, $bytes);
+ $data .= $chunk;
+ $bytes -= strlen($chunk);
+ }
+ $this->_pos = ftell($this->_fd);
+
+ return $data;
+ } else return '';
+ }
+
+ function seekto($pos) {
+ fseek($this->_fd, $pos);
+ $this->_pos = ftell($this->_fd);
+ return $this->_pos;
+ }
+
+ function currentpos() {
+ return $this->_pos;
+ }
+
+ function length() {
+ return $this->_length;
+ }
+
+ function close() {
+ fclose($this->_fd);
+ }
+
+};
+
+// Preloads entire file in memory first, then creates a StringReader
+// over it (it assumes knowledge of StringReader internals)
+class CachedFileReader extends StringReader {
+ function CachedFileReader($filename) {
+ if (file_exists($filename)) {
+
+ $length=filesize($filename);
+ $fd = fopen($filename,'rb');
+
+ if (!$fd) {
+ $this->error = 3; // Cannot read file, probably permissions
+ return false;
+ }
+ $this->_str = fread($fd, $length);
+ fclose($fd);
+
+ } else {
+ $this->error = 2; // File doesn't exist
+ return false;
+ }
+ }
+};
+
+
+?>