<?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
*/
/*
-LC_CTYPE 0
-LC_NUMERIC 1
-LC_TIME 2
-LC_COLLATE 3
-LC_MONETARY 4
-LC_MESSAGES 5
-LC_ALL 6
+LC_CTYPE 0
+LC_NUMERIC 1
+LC_TIME 2
+LC_COLLATE 3
+LC_MONETARY 4
+LC_MESSAGES 5
+LC_ALL 6
*/
-require(dirname(__FILE__) .'/streams.php');
-require(dirname(__FILE__) .'/gettext.php');
+
+// 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
$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);
- $p = isset($text_domains[$domain]->path) ? $text_domains[$domain]->path : './';
- $path = $p . "$locale/". $LC_CATEGORIES[$category] ."/$domain.mo";
- if (file_exists($path)) {
- $input = new FileReader($path);
- }
- else {
- $input = null;
- }
- $text_domains[$domain]->l10n = new gettext_reader($input, $enable_cache);
- }
- return $text_domains[$domain]->l10n;
+ 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;
}
/**
/**
* Checks if the current locale is supported on this system.
*/
-function _check_locale() {
+function _check_locale_and_function($function=false) {
global $EMULATEGETTEXT;
+ if ($function and !function_exists($function))
+ return false;
return !$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');
+ 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;
- }
+ $source_encoding = mb_detect_encoding($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 ($CURRENTLOCALE != '')
+ if ($CURRENTLOCALE != '')
return $CURRENTLOCALE;
- else
+ else
// obey LANG variable, maybe extend to support all of LC_* vars
// even if we tried to read locale without setting it first
return _setlocale($category, $CURRENTLOCALE);
} else {
- $ret = 0;
- if (function_exists('setlocale')) // I don't know if this ever happens ;)
- $ret = setlocale($category, $locale);
- if (($ret and $locale == '') or ($ret == $locale)) {
- $EMULATEGETTEXT = 0;
+ 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;
+ $EMULATEGETTEXT = 0;
+ }
} else {
- if ($locale == '') // emulate variable support
- $CURRENTLOCALE = getenv('LANG');
- else
- $CURRENTLOCALE = $locale;
- $EMULATEGETTEXT = 1;
+ // 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 $path ends with a slash
- if ($path[strlen($path) - 1] != '/') $path .= '/';
- elseif ($path[strlen($path) - 1] != '\\') $path .= '\\';
- $text_domains[$domain]->path = $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;
+ global $text_domains;
+ $text_domains[$domain]->codeset = $codeset;
}
/**
* Sets the default domain.
*/
function _textdomain($domain) {
- global $default_domain;
- $default_domain = $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));
+ $l10n = _get_reader();
+ return _encode($l10n->translate($msgid));
}
+
/**
* Alias for gettext.
*/
function __($msgid) {
- return _gettext($msgid);
+ return _gettext($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));
+ $l10n = _get_reader();
+ return _encode($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));
+ $l10n = _get_reader($domain);
+ 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));
+ $l10n = _get_reader($domain);
+ 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));
+ $l10n = _get_reader($domain, $category);
+ return _encode($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));
+ $l10n = _get_reader($domain, $category);
+ return _encode($l10n->ngettext($single, $plural, $number));
}
+/**
+ * Context version of gettext.
+ */
+function _pgettext($context, $msgid) {
+ $l10n = _get_reader();
+ return _encode($l10n->pgettext($context, $msgid));
+}
+/**
+ * Override the current domain in a context gettext call.
+ */
+function _dpgettext($domain, $context, $msgid) {
+ $l10n = _get_reader($domain);
+ return _encode($l10n->pgettext($context, $msgid));
+}
-// Wrappers to use if the standard gettext functions are available, but the current locale is not supported by the system.
-// Use the standard impl if the current locale is supported, use the custom impl otherwise.
+/**
+ * Overrides the domain and category for a single context-based lookup.
+ */
+function _dcpgettext($domain, $context, $msgid, $category) {
+ $l10n = _get_reader($domain, $category);
+ return _encode($l10n->pgettext($context, $msgid));
+}
+
+/**
+ * Context version of ngettext.
+ */
+function _npgettext($context, $singular, $plural) {
+ $l10n = _get_reader();
+ return _encode($l10n->npgettext($context, $singular, $plural));
+}
+
+/**
+ * Override the current domain in a context ngettext call.
+ */
+function _dnpgettext($domain, $context, $singular, $plural) {
+ $l10n = _get_reader($domain);
+ return _encode($l10n->npgettext($context, $singular, $plural));
+}
+
+/**
+ * Overrides the domain and category for a plural context-based lookup.
+ */
+function _dcnpgettext($domain, $context, $singular, $plural, $category) {
+ $l10n = _get_reader($domain, $category);
+ return _encode($l10n->npgettext($context, $singular, $plural));
+}
+
+
+
+// Wrappers to use if the standard gettext functions are available,
+// but the current locale is not supported by the system.
+// Use the standard impl if the current locale is supported, use the
+// custom impl otherwise.
function T_setlocale($category, $locale) {
return _setlocale($category, $locale);
}
function T_bindtextdomain($domain, $path) {
- if (_check_locale()) return bindtextdomain($domain, $path);
- else return _bindtextdomain($domain, $path);
+ if (_check_locale_and_function()) return bindtextdomain($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, $codeset);
+ if (_check_locale_and_function('bind_textdomain_codeset'))
+ return bind_textdomain_codeset($domain, $codeset);
+ else return _bind_textdomain_codeset($domain, $codeset);
}
function T_textdomain($domain) {
- if (_check_locale()) return textdomain($domain);
- else return _textdomain($domain);
+ if (_check_locale_and_function()) return textdomain($domain);
+ else return _textdomain($domain);
}
function T_gettext($msgid) {
- if (_check_locale()) return gettext($msgid);
- else return _gettext($msgid);
+ if (_check_locale_and_function()) return gettext($msgid);
+ else return _gettext($msgid);
}
function T_($msgid) {
- if (_check_locale()) return _($msgid);
- return __($msgid);
+ if (_check_locale_and_function()) return _($msgid);
+ return __($msgid);
}
function T_ngettext($single, $plural, $number) {
- if (_check_locale()) return ngettext($single, $plural, $number);
- else return _ngettext($single, $plural, $number);
+ if (_check_locale_and_function())
+ return ngettext($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, $msgid);
+ if (_check_locale_and_function()) return dgettext($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, $number);
+ if (_check_locale_and_function())
+ return dngettext($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, $category);
+ if (_check_locale_and_function())
+ return dcgettext($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, $category);
+ if (_check_locale_and_function())
+ return dcngettext($domain, $single, $plural, $number, $category);
+ else return _dcngettext($domain, $single, $plural, $number, $category);
+}
+
+function T_pgettext($context, $msgid) {
+ if (_check_locale_and_function('pgettext'))
+ return pgettext($context, $msgid);
+ else
+ return _pgettext($context, $msgid);
+}
+
+function T_dpgettext($domain, $context, $msgid) {
+ if (_check_locale_and_function('dpgettext'))
+ return dpgettext($domain, $context, $msgid);
+ else
+ return _dpgettext($domain, $context, $msgid);
+}
+
+function T_dcpgettext($domain, $context, $msgid, $category) {
+ if (_check_locale_and_function('dcpgettext'))
+ return dcpgettext($domain, $context, $msgid, $category);
+ else
+ return _dcpgettext($domain, $context, $msgid, $category);
+}
+
+function T_npgettext($context, $singular, $plural) {
+ if (_check_locale_and_function('npgettext'))
+ return npgettext($context, $single, $plural, $number);
+ else
+ return _npgettext($context, $single, $plural, $number);
+}
+
+function T_dnpgettext($domain, $context, $singular, $plural) {
+ if (_check_locale_and_function('dnpgettext'))
+ return dnpgettext($domain, $context, $single, $plural, $number);
+ else
+ return _dnpgettext($domain, $context, $single, $plural, $number);
+}
+
+function T_dcnpgettext($domain, $context, $singular, $plural, $category) {
+ if (_check_locale_and_function('dcnpgettext'))
+ return dcnpgettext($domain, $context, $single,
+ $plural, $number, $category);
+ else
+ return _dcnpgettext($domain, $context, $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, $category);
- }
-}
-
-?>
\ No newline at end of file
+ function bindtextdomain($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, $category);
+ }
+ function pgettext($context, $msgid) {
+ return _pgettext($context, $msgid);
+ }
+ function npgettext($context, $single, $plural, $number) {
+ return _npgettext($context, $single, $plural, $number);
+ }
+ function dpgettext($domain, $context, $msgid) {
+ return _dpgettext($domain, $context, $msgid);
+ }
+ function dnpgettext($domain, $context, $single, $plural, $number) {
+ return _dnpgettext($domain, $context, $single, $plural, $number);
+ }
+ function dcpgettext($domain, $context, $msgid, $category) {
+ return _dcpgettext($domain, $context, $msgid, $category);
+ }
+ function dcnpgettext($domain, $context, $single, $plural,
+ $number, $category) {
+ return _dcnpgettext($domain, $context, $single, $plural,
+ $number, $category);
+ }
+}
+
+?>
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