Extraction of context information for I18n about twig-extensions

[deceze]

In the meantime I implemented a complete native string extractor which uses the Twig lexer and parser. I also took the opportunity to extend the gettext support to use the system more fully (domains, categories, contexts, plurals, string formatting).

The only thing missing is a decent library for writing the extracted strings to a PO file. Does anyone happen to know one? Otherwise I'll have to write one too.

Once that's done and it's brushed up a bit I'll attach the code here...

[lyrixx]

Did you see:

• https://github.com/symfony/symfony/blob/master/src/Symfony/Bridge/Twig/Translation/TwigExtractor.php;
• https://github.com/symfony/symfony/blob/master/src/Symfony/Bridge/Twig/NodeVisitor/TranslationNodeVisitor.php;
• https://github.com/symfony/symfony/blob/master/src/Symfony/Bridge/Twig/NodeVisitor/TranslationDefaultDomainNodeVisitor.php

[deceze]

I did not, but this is still rather limited for my needs. A single trans tag is very limited for complex use. I have added all possible gettext() variations in my extension (_d, _n, _p, _dcn etc. etc.), not to mention extractable comments.

[deceze]

Issue superseded by #76.