Is there a Sublime Text Syntax for Flex and Bison?

Indeed there are:

• Flex
• Bison

It's not so hard to write your own packages for non-typical languages. Just browse the source of other language syntax files and copy-paste-change what you need. Also raises your regex skills to a better level.

The one thalesmello posted works well for Flex. For Bison, I've found this one - it's pretty minimal but it's a start:

https://github.com/Jackneill/sublime-text-packages/tree/master/Packages/Bison

Please let me know if you find something better!

edit: I take it back - the Flex one highlights start states & C/C++ code in pink and it looks quite terrible. For basic lex files it looks okay, but it needs work. :)

edit again: as sonu kumar pointed out, the project has been removed from github. For an alternative you could try the built-in OCamlyacc highlighting (pretty decent), or another alternative: https://bitbucket.org/artyom_smirnov/sublime-text-bison-highlighter (needs some work)

I'm using Sublime a lot more & do a fair bit of work in Flex/Bison, so I might get around to writing one... one day. :D

I haven't found one built specifically for Sublime, but I've found one for TextMate, which Sublime is compatible with.

Therefore, for Flex highlight, all you need to do is git clone the TextMate's syntax files to your Packages folder.

Regarding Bison, I've found a syntax for TextMate, but it didn't work very well for me. The one Vaklarados posted worked nicer with my source files.

Install Package Control for Sublime Text.

I found this there: https://sublime.wbond.net/packages/Bison

Do try it, I found it good enough for my use.