Fixes for PHP attribute parsing

[wouterj]

• No longer wrap the entire attribute in a span, but only wrap #[Route and ] in spans (fixes Minor issue when highlighting some PHP attributes #174)
• @javiereguiluz for consistency with the real PHP highlight.js file, I've renamed php-attributes to meta. Is it OK for you to update the CSS on symfony.com to style .hljs-meta instead of .hljs-php-attributes?
• Fixed not parsing attributes in parameters, see e.g. https://symfony.com/doc/current/controller.html#mapping-the-whole-query-string

[javiereguiluz]

This is so great! You now even highlight inlined attributes in controller arguments 😍

I've just updated symfony.com to add this: .hljs-php-attribute, .codeblock-php .hljs-meta { ... } and I'll remove .hljs-php-attribute when the docs are rebuilt with this new version. So, everything is ready on that side.

Thanks a lot!

[wouterj]

Thanks Javier :)
Looking at the tests, this unfortunately this apparently broke other PHP syntax. Needs more investigation.

[wouterj]

This PR is ready to merge now. Fix was to reorder the syntax elements in the parameter list, no clue why but it seems to work (also checked by building the full docs locally).

I've just updated symfony.com to add this: .hljs-php-attribute, .codeblock-php .hljs-meta { ... } and I'll remove .hljs-php-attribute when the docs are rebuilt with this new version. So, everything is ready on that side.

You might want to make it .hljs-meta (so without scoping to only PHP codeblocks). Meta is used for special meta syntax in other formats (e.g. the doctype in HTML/XML, use strict in JavaScript and anchors/references in Yaml).

[javiereguiluz]

Great! Wouter, thanks again for this super nice contribution. I'm going to merge and tag a new release to use this on symfony.com ASAP.

[javiereguiluz]

After deploying and rebuilding the docs, the highlighting of PHP attributes is now perfect. See e.g. the page that was showing the issue before: https://symfony.com/doc/current/reference/constraints/AtLeastOneOf.html#basic-usage