vim syntax highlighting: region that starts with "#" and end with either "#" or end of line
The situation
I am in the process of writing a vim syntax file for a language that allows inline comments following this scheme:
This is code # and here is comment # but this is code again
The language also allows comment to start with a "#" and end with a newline, like so:
This is code # and until the end of the line, this is a comment
What I want
I would like both to be recognized by my syntax file as comments.
What I've tried
When I use:
syn region comment start="#" end="#"
, the result is that comments are not delimited by newlines. Now, I've done some research and tried it with the following regex match:
syn match comment "#.+?(?=#|$)"
And that seems to work properly, but doesn't do what I want. It does end the inline comment by the second "#", but then starts a new comment from that hashtag until the newline.
How do I tell the vim syntax file to properly recognize the comments?
Solution
This one is pretty straightforward
syn region Comment start=/#/ end=/#/ end=/$/
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