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							|  | @ -0,0 +1,161 @@ | |||
| PHP-gettext 1.0 (https://launchpad.net/php-gettext) | ||||
| 
 | ||||
| Copyright 2003, 2006, 2009 -- 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 | ||||
| 
 | ||||
|     Report them on https://bugs.launchpad.net/php-gettext | ||||
| 
 | ||||
| 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. | ||||
| 
 | ||||
| TODO: | ||||
| 
 | ||||
|   o Improve speed to be even more comparable to the native gettext | ||||
|     implementation. | ||||
| 
 | ||||
|   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. | ||||
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