From 5c21a371d61b4cd3dd125f2c43aa80c52c9c316d Mon Sep 17 00:00:00 2001 From: Brion Vibber Date: Tue, 18 Aug 2009 20:59:18 -0700 Subject: [PATCH] Include php-gettext 1.0.7 into extlibs; loading it up if native gettext extension is not present. This provides a pure PHP implementation of the gettext functions. This should help get laconica running on shared hosting environments where PHP's gettext module may not be installed. Also gets us one step closer to running on Mac OS X 10.5 with Apple's preinstalled PHP, which doesn't provide an easy way to add modules. Source: http://savannah.nongnu.org/projects/php-gettext Copyright (c) 2005 Steven Armstrong GPLv2 or later --- extlib/php-gettext/.DS_Store | Bin 0 -> 6148 bytes extlib/php-gettext/AUTHORS | 3 + extlib/php-gettext/COPYING | 340 +++++++++++++++++++++++++++++++ extlib/php-gettext/ChangeLog | 144 +++++++++++++ extlib/php-gettext/README | 189 +++++++++++++++++ extlib/php-gettext/gettext.inc | 318 +++++++++++++++++++++++++++++ extlib/php-gettext/gettext.php | 358 +++++++++++++++++++++++++++++++++ extlib/php-gettext/streams.php | 166 +++++++++++++++ install.php | 3 +- lib/common.php | 3 + 10 files changed, 1522 insertions(+), 2 deletions(-) create mode 100644 extlib/php-gettext/.DS_Store create mode 100644 extlib/php-gettext/AUTHORS create mode 100644 extlib/php-gettext/COPYING create mode 100644 extlib/php-gettext/ChangeLog create mode 100644 extlib/php-gettext/README create mode 100644 extlib/php-gettext/gettext.inc create mode 100644 extlib/php-gettext/gettext.php create mode 100644 extlib/php-gettext/streams.php diff --git a/extlib/php-gettext/.DS_Store b/extlib/php-gettext/.DS_Store new file mode 100644 index 0000000000000000000000000000000000000000..5008ddfcf53c02e82d7eee2e57c38e5672ef89f6 GIT binary patch literal 6148 zcmeH~Jr2S!425mzP>H1@V-^m;4Wg<&0T*E43hX&L&p$$qDprKhvt+--jT7}7np#A3 zem<@ulZcFPQ@L2!n>{z**++&mCkOWA81W14cNZlEfg7;MkzE(HCqgga^y>{tEnwC%0;vJ&^%eQ zLs35+`xjp>T0 +Nico Kaiser (contributed most changes between 1.0.2 and 1.0.3, bugfix for 1.0.5) +Steven Armstrong (gettext.inc, leading to 1.0.6) diff --git a/extlib/php-gettext/COPYING b/extlib/php-gettext/COPYING new file mode 100644 index 0000000000..5b6e7c66c2 --- /dev/null +++ b/extlib/php-gettext/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/extlib/php-gettext/ChangeLog b/extlib/php-gettext/ChangeLog new file mode 100644 index 0000000000..5e0949dfd7 --- /dev/null +++ b/extlib/php-gettext/ChangeLog @@ -0,0 +1,144 @@ +2006-02-07 Danilo Šegan + + * examples/pigs_dropin.php: comment-out bind_textdomain_codeset + + * gettext.inc (T_bind_textdomain_codeset): bind_textdomain_codeset + is available only in PHP 4.2.0+ (thanks to Jens A. Tkotz). + + * Makefile: Include gettext.inc in DIST_FILES, VERSION up to + 1.0.7. + +2006-02-03 Danilo Šegan + + Added setlocale() emulation as well. + + * examples/pigs_dropin.php: Use T_setlocale() and locale_emulation(). + * examples/pigs_fallback.php: Use T_setlocale() and locale_emulation(). + + * gettext.inc: Added globals $EMULATEGETTEXT and $CURRENTLOCALE. + (locale_emulation): Whether emulation is active. + (_check_locale): Rewrite. + (_setlocale): Added emulated setlocale function. + (T_setlocale): Wrapper around _setlocale. + (_get_reader): Use variables and _setlocale. + +2006-02-02 Danilo Šegan + + Fix bug #12192. + + * examples/locale/sr_CS/LC_MESSAGES/messages.po: Correct grammar. + * examples/locale/sr_CS/LC_MESSAGES/messages.mo: Rebuild. + +2006-02-02 Danilo Šegan + + Fix bug #15419. + + * streams.php: Support for PHP 5.1.1 fread() which reads most 8kb. + (Fix by Piotr Szotkowski ) + +2006-02-02 Danilo Šegan + + Merge Steven Armstrong's changes, supporting standard gettext + interfaces: + + * examples/*: Restructured examples. + * gettext.inc: Added. + * AUTHORS: Added Steven. + * Makefile (VERSION): Up to 1.0.6. + +2006-01-28 Nico Kaiser + + * gettext.php (select_string): Fix "true" <-> 1 difference of PHP + +2005-07-29 Danilo Šegan + + * Makefile (VERSION): Up to 1.0.5. + +2005-07-29 Danilo Šegan + + Fixes bug #13850. + + * gettext.php (gettext_reader): check $Reader->error as well. + +2005-07-29 Danilo Šegan + + * Makefile (VERSION): Up to 1.0.4. + +2005-07-29 Danilo Šegan + + Fixes bug #13771. + + * gettext.php (gettext_reader->get_plural_forms): Plural forms + header extraction regex change. Reported by Edgar Gonzales. + +2005-02-28 Danilo Šegan + + * AUTHORS: Added Nico to the list. + + * Makefile (VERSION): Up to 1.0.3. + + * README: Updated. + +2005-02-28 Danilo Šegan + + * gettext.php: Added pre-loading, code documentation, and many + code clean-ups by Nico Kaiser . + +2005-02-28 Danilo Šegan + + * streams.php (FileReader.read): Handle read($bytes = 0). + + * examples/pigs.php: Prefix gettext function names with T or T_. + + * examples/update: Use the same keywords T_ and T_ngettext. + + * streams.php: Added CachedFileReader. + +2003-11-11 Danilo Šegan + + * gettext.php: Added hashing to find_string. + +2003-11-01 Danilo Šegan + + * Makefile (DIST_FILES): Replaced LICENSE with COPYING. + (VERSION): Up to 1.0.2. + + * AUTHORS: Minor edits. + + * README: Minor edits. + + * COPYING: Removed LICENSE, added this file. + + * gettext.php: Added copyright notice and disclaimer. + * streams.php: Same. + * examples/pigs.php: Same. + +2003-10-23 Danilo Šegan + + * Makefile: Upped version to 1.0.1. + + * gettext.php (gettext_reader): Remove a call to set_total_plurals. + (set_total_plurals): Removed unused function for some better days. + +2003-10-23 Danilo Šegan + + * Makefile: Added, version 1.0.0. + + * examples/*: Added an example of usage. + + * README: Described all the crap. + +2003-10-22 Danilo Šegan + + * gettext.php: Plural forms implemented too. + + * streams.php: Added FileReader for direct access to files (no + need to keep file in memory). + + * gettext.php: It works, except for plural forms. + + * streams.php: Created abstract class StreamReader. + Added StringReader class. + + * gettext.php: Started writing gettext_reader. + diff --git a/extlib/php-gettext/README b/extlib/php-gettext/README new file mode 100644 index 0000000000..c7525e29c9 --- /dev/null +++ b/extlib/php-gettext/README @@ -0,0 +1,189 @@ +PHP-gettext 1.0 + +Copyright 2003, 2006 -- Danilo "angry with PHP[1]" Segan +Licensed under GPLv2 (or any later version, see COPYING) + +[1] PHP is actually cyrillic, and translates roughly to + "works-doesn't-work" (UTF-8: Ради-Не-Ради) + + +Introduction + + How many times did you look for a good translation tool, and + found out that gettext is best for the job? Many times. + + How many times did you try to use gettext in PHP, but failed + miserably, because either your hosting provider didn't support + it, or the server didn't have adequate locale? Many times. + + Well, this is a solution to your needs. It allows using gettext + tools for managing translations, yet it doesn't require gettext + library at all. It parses generated MO files directly, and thus + might be a bit slower than the (maybe provided) gettext library. + + PHP-gettext is a simple reader for GNU gettext MO files. Those + are binary containers for translations, produced by GNU msgfmt. + +Why? + + I got used to having gettext work even without gettext + library. It's there in my favourite language Python, so I was + surprised that I couldn't find it in PHP. I even Googled for it, + but to no avail. + + So, I said, what the heck, I'm going to write it for this + disguisting language of PHP, because I'm often constrained to it. + +Features + + o Support for simple translations + Just define a simple alias for translate() function (suggested + use of _() or gettext(); see provided example). + + o Support for ngettext calls (plural forms, see a note under bugs) + You may also use plural forms. Translations in MO files need to + provide this, and they must also provide "plural-forms" header. + Please see 'info gettext' for more details. + + o Support for reading straight files, or strings (!!!) + Since I can imagine many different backends for reading in the MO + file data, I used imaginary abstract class StreamReader to do all + the input (check streams.php). For your convenience, I've already + provided two classes for reading files: FileReader and + StringReader (CachedFileReader is a combination of the two: it + loads entire file contents into a string, and then works on that). + See example below for usage. You can for instance use StringReader + when you read in data from a database, or you can create your own + derivative of StreamReader for anything you like. + + +Bugs + + Plural-forms field in MO header (translation for empty string, + i.e. "") is treated according to PHP syntactic rules (it's + eval()ed). Since these should actually follow C syntax, there are + some problems. + + For instance, I'm used to using this: + Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 : \ + n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2; + but it fails with PHP (it sets $plural=2 instead of 0 for $n==1). + + The fix is usually simple, but I'm lazy to go into the details of + PHP operator precedence, and maybe try to fix it. In here, I had + to put everything after the first ':' in parenthesis: + Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 : \ + (n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2); + That works, and I'm satisfied. + + Besides this one, there are probably a bunch of other bugs, since + I hate PHP (did I mention it already? no? strange), and don't + know it very well. So, feel free to fix any of those and report + them back to me at . + +Usage + + Put files streams.php and gettext.php somewhere you can load them + from, and require 'em in where you want to use them. + + Then, create one 'stream reader' (a class that provides functions + like read(), seekto(), currentpos() and length()) which will + provide data for the 'gettext_reader', with eg. + $streamer = new FileStream('data.mo'); + + Then, use that as a parameter to gettext_reader constructor: + $wohoo = new gettext_reader($streamer); + + If you want to disable pre-loading of entire message catalog in + memory (if, for example, you have a multi-thousand message catalog + which you'll use only occasionally), use "false" for second + parameter to gettext_reader constructor: + $wohoo = new gettext_reader($streamer, false); + + From now on, you have all the benefits of gettext data at your + disposal, so may run: + print $wohoo->translate("This is a test"); + print $wohoo->ngettext("%d bird", "%d birds", $birds); + + You might need to pass parameter "-k" to xgettext to make it + extract all the strings. In above example, try with + xgettext -ktranslate -kngettext:1,2 file.php + what should create messages.po which contains two messages for + translation. + + I suggest creating simple aliases for these functions (see + example/pigs.php for how do I do it, which means it's probably a + bad way). + + +Usage with gettext.inc (standard gettext interfaces emulation) + + Check example in examples/pig_dropin.php, basically you include + gettext.inc and use all the standard gettext interfaces as + documented on: + + http://www.php.net/gettext + + The only catch is that you can check return value of setlocale() + to see if your locale is system supported or not. + + +Example + + See in examples/ subdirectory. There are a couple of files. + pigs.php is an example, serbian.po is a translation to Serbian + language, and serbian.mo is generated with + msgfmt -o serbian.mo serbian.po + There is also simple "update" script that can be used to generate + POT file and to update the translation using msgmerge. + +Interesting TODO: + + o Try to parse "plural-forms" header field, and to follow C syntax + rules. This won't be easy. + +Boring TODO: + + o Learn PHP and fix bugs, slowness and other stuff resulting from + my lack of knowledge (but *maybe*, it's not my knowledge that is + bad, but PHP itself ;-). + + (This is mostly done thanks to Nico Kaiser.) + + o Try to use hash tables in MO files: with pre-loading, would it + be useful at all? + +Never-asked-questions: + + o Why did you mark this as version 1.0 when this is the first code + release? + + Well, it's quite simple. I consider that the first released thing + should be labeled "version 1" (first, right?). Zero is there to + indicate that there's zero improvement and/or change compared to + "version 1". + + I plan to use version numbers 1.0.* for small bugfixes, and to + release 1.1 as "first stable release of version 1". + + This may trick someone that this is actually useful software, but + as with any other free software, I take NO RESPONSIBILITY for + creating such a masterpiece that will smoke crack, trash your + hard disk, and make lasers in your CD device dance to the tune of + Mozart's 40th Symphony (there is one like that, right?). + + o Can I...? + + Yes, you can. This is free software (as in freedom, free speech), + and you might do whatever you wish with it, provided you do not + limit freedom of others (GPL). + + I'm considering licensing this under LGPL, but I *do* want + *every* PHP-gettext user to contribute and respect ideas of free + software, so don't count on it happening anytime soon. + + I'm sorry that I'm taking away your freedom of taking others' + freedom away, but I believe that's neglible as compared to what + freedoms you could take away. ;-) + + Uhm, whatever. diff --git a/extlib/php-gettext/gettext.inc b/extlib/php-gettext/gettext.inc new file mode 100644 index 0000000000..eb94b256a6 --- /dev/null +++ b/extlib/php-gettext/gettext.inc @@ -0,0 +1,318 @@ + + + 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 +*/ + +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 = ''; + + +// Utility functions + +/** + * 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; +} + +/** + * 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 $text; + } +} + + + + +// Custom implementation of the standard gettext related functions + +/** + * Sets a requested locale, if needed emulates it. + */ +function _setlocale($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 { + $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; + $CURRENTLOCALE = $ret; + } else { + if ($locale == '') // emulate variable support + $CURRENTLOCALE = getenv('LANG'); + else + $CURRENTLOCALE = $locale; + $EMULATEGETTEXT = 1; + } + 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 = $path; +} + +/** + * Specify the character encoding in which the messages from the DOMAIN message catalog will be returned. + */ +function _bind_textdomain_codeset($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); + } +} + +?> \ No newline at end of file diff --git a/extlib/php-gettext/gettext.php b/extlib/php-gettext/gettext.php new file mode 100644 index 0000000000..ad94a987b7 --- /dev/null +++ b/extlib/php-gettext/gettext.php @@ -0,0 +1,358 @@ +. + Copyright (c) 2005 Nico Kaiser + + 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 + return array_shift(unpack('V', $this->STREAM->read(4))); + } else { + // big endian + return array_shift(unpack('N', $this->STREAM->read(4))); + } + } + + /** + * Reads an array of Integers from the Stream + * + * @param int count How many elements should be read + * @return Array of Integers + */ + function readintarray($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 = (int)0x950412de; //bug in PHP 5 + $MAGIC1 = (int) - 1794895138; + // $MAGIC2 = (int)0xde120495; //bug + $MAGIC2 = (int) - 569244523; + + $this->STREAM = $Reader; + $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(); + + $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); + } + } + + /** + * 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 $this->pluralheader; + } + + /** + * Detects which plural form to take + * + * @access private + * @param n count + * @return int array index of the right plural form + */ + function select_string($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/extlib/php-gettext/streams.php b/extlib/php-gettext/streams.php new file mode 100644 index 0000000000..d57aac6496 --- /dev/null +++ b/extlib/php-gettext/streams.php @@ -0,0 +1,166 @@ +. + + 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, $this->_pos); + + // PHP 5.1.1 does not read more than 8192 bytes in one fread() + // the discussions at PHP Bugs suggest it's the intended behaviour + while ($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; + } + } +} + + +?> \ No newline at end of file diff --git a/install.php b/install.php index 9bcee275f1..c13f70272d 100644 --- a/install.php +++ b/install.php @@ -49,8 +49,7 @@ function checkPrereqs() } $reqs = array('gd', 'curl', - 'xmlwriter', 'mbstring', - 'gettext'); + 'xmlwriter', 'mbstring'); foreach ($reqs as $req) { if (!checkExtension($req)) { diff --git a/lib/common.php b/lib/common.php index 6c4b856e00..72c093bf30 100644 --- a/lib/common.php +++ b/lib/common.php @@ -47,6 +47,9 @@ require_once('PEAR.php'); require_once('DB/DataObject.php'); require_once('DB/DataObject/Cast.php'); # for dates +if (!function_exists('gettext')) { + require_once("php-gettext/gettext.inc"); +} require_once(INSTALLDIR.'/lib/language.php'); // This gets included before the config file, so that admin code and plugins