Fernando Basso wrote:
I have a little syntax file, with lines like:
highlight sExamplesInText ctermfg=yellow guifg=yellow
syntax match sExamplesInText /«\zs[^»]\_.\{-}\ze»/
I'd like to use « and » to delimit the text I want to be yellow, but
also, to hide those delimiters.
I tried:
syntax match Conceal /«\|»/ conceal
but that seems not to be the right thing (I did set conceallevel=2).
So, text inside « and » characters should be yellow (or any other
color). But the delimiter should be hidden. What is the way to go?
Please try:
syn clear
set cole=3
syn match DelimHide1 /«/ nextgroup=sExamplesInText conceal
syn match sExamplesInText /\_.\{-}\ze»/ contained
nextgroup=DelimHide2
syn match DelimHide2 /»/ contained conceal
hi sExamplesInText ctermfg=yellow guifg=yellow
You may find hilinks of help with your syntax work...
http://drchip.0sites.net/astronaut/vim/index.html#HILINKS
This plugin provides the :HLT! command -- with it you'll get a syntax
stack trace and a highlighting stack trace as you move your cursor about.
The problem you've had with your syntax highlighting is one with
priority and sequentiality:
* With the following sequence, the « has already been taken up
syntax match Conceal /«\|»/ conceal
syntax match sExamplesInText /«\zs[^»]\_.\{-}\ze»/
by the sExamplesInText, as it has priority due to appearing later (sequence), so
"Conceal" never sees it (assuming balanced «...» delimiters so that
sExamplesInText matches).
* With the following sequence, the « has already been taken up
syntax match sExamplesInText /«\zs[^»]\_.\{-}\ze»/
syntax match Conceal /«\|»/ conceal
by the "Conceal", as it has priority due to appearing later (sequence); this
time, sExamplesInText never sees the character and so never matches.
HTH,
Chip Campbell
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