Implement annotation highlighting

[exu]

Hi Eric,

Great job with this mode. It would be cool to have annotations highlighting like in symfony2/doctrine2
http://symfony.com/doc/current/book/doctrine.html

[ejmr]

Thanks a lot. I'll put this on my list of things to do.

[ejmr]

I'm making some progress on this. Initially the highlighting support will probably be simply for the annotations that appear in Symfony, although I'm looking for a more general solution. I would like to provide special highlighting to anything starting with '@' but that would conflict with the use of '@' outside of comments.

[dmj]

https://gist.github.com/3889487

[ejmr]

Thank you dmj for the code. Is this code you wrote? I just want to make sure I attribute it to the right person if I end up applying it to php-mode.

[dmj]

Yes, that's my production. Attribution would be: David Maus dmaus@ictsoc.de -- Originally I wanted to publish this as a standalone package `php-annotations' with extended support for different annotation types (phpdoc, phpunit etc.) but decided that it is not worth the effort to write such extended support. Having the annotations hightlighted is good enough for me.

[ejmr]

Thank you for the contribution dmj. I added your code into php-mode and updated the master branch with it. If you add more detailed support for annotations please let me know. I'd certainly welcome support for those.