CODEWITHSUNDEEP
javascriptvimcoffeescript
wyc
wyc

Reputation: 55293

Problems modifying comment highlight in coffee.vim

I'm trying to modify the highlight of CoffeeScript comments:

"" coffeescript comments
syntax keyword coffeescriptCommentTodo    TODO FIXME XXX TBD contained
syntax region  coffeescriptLineComment    start=/####\@!/ end=/###/ keepend contains=coffeescriptCommentTodo,@Spell
syntax region  coffeescriptEnvComment     start=/####\@!/ end=/###/ display
syntax region  coffeescriptLineComment    start=/####\@!/ end=/###/ keepend contains=coffeescriptCommentTodo,@Spell fold
syntax region  coffeescriptCvsTag         start="\$\cid:" end="\$" oneline contained
syntax region  coffeescriptComment        start=/#*/      end="\$" contains=coffeescriptCommentTodo,coffeescriptCvsTag,@Spell fold

I admit I'm doing it a bit randomly, basing myself in this other syntax file:

syn match coffeeComment /#.*/ contains=@Spell,coffeeTodo
hi def link coffeeComment Comment

syn region coffeeBlockComment start=/####\@!/ end=/###/
\                             contains=@Spell,coffeeTodo
hi def link coffeeBlockComment coffeeComment

" A comment in a heregex
syn region coffeeHeregexComment start=/#/ end=/\ze\/\/\/\|$/ contained
\                               contains=@Spell,coffeeTodo
hi def link coffeeHeregexComment coffeeComment

With that I have now (the first code), everything looks commented except if statements. How do I modify the syntax file to highlight properly CoffeeScript comments?

enter image description here

Upvotes: 0

Views: 51

Answers (1)

Paul T.
Paul T.

Reputation: 326

Doing a search for #* matches the whole of any file, because the * matches any number of the preceding character even zero. So all characters match zero #s.

That's why the example you posted uses #.* -- match one # then any number of any character (.*)

I've found this to be a useful reference: VimRegex.

The offending line is:

syntax region  coffeescriptComment        start=/#*/      end="\$" contains=coffeescriptCommentTodo,coffeescriptCvsTag,@Spell fold

Try: start=/#\+/ to match at least one # and any more.

Upvotes: 2

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