Hi Ben, thanks for the clue!
Ben Fritz wrote:
>
> My first thought would be to try adding a containedin of whatever
> syntax item is currently matching on the CDATA region.
>
So, that's good advice. Reading the xml.vim syntax file, there are 'hooks'
provided in various regions for adding syntax groups to an undefined
cluster. For CDATA, we have:
" CData sections
"
" PROVIDES: @xmlCdataHook
"
syn region xmlCdata
\ start=+<!\[CDATA\[+
\ end=+]]>+
\ contains=xmlCdataStart,xmlCdataEnd,@xmlCdataHook,@Spell
\ keepend
\ extend
Now, this unfortunately isn't as easy to use as it looks like it's intended
to be. This doesn't work:
unlet b:current_syntax
syn include @CDATA_HTML $VIMRUNTIME/syntax/html.vim
syn cluster xmlCdataHook a...@cdata_html
because the @CDATA_HTML rules start matching at the "start of the start" and
it's ugly!
So, I have solved it this way, and propose a patch to xml.vim to make this
'hook' work as intended.
I re-define the region xmlCdata using matchgroup, which specifically allows
for different highlighting of the start & end and the contained "text in
between" (:h :syn-region). This gives slightly less attractive highlighting
of the <![CDATA[ marker itself (no way I can find to make the CDATA
different from the punctuation) but allows the code above to work as
intended.
~/.vim/after/syntax/xml.vim
" Edited region xmlCdata using matchgroup
syn region xmlCdata
\ matchgroup=Special
\ start=+<!\[CDATA\[+
\ end=+]]>+
\ contai...@xmlcdatahook,@Spell
\ keepend
\ extend
" Now load HTML syntax and add to the 'hook'
unlet b:current_syntax
syn include @CDATA_HTML $VIMRUNTIME/syntax/html.vim
syn cluster xmlCdataHook a...@cdata_html
Cheers, al.
On Jun 15, 11:05 am, Allan Kelly <[email protected]> wrote:
> Now, this is where the problems are:
> :syn region CDATA_HTML_region start=+<!\[CDATA\[+ keepend
> end=+\]\]>+me=s-1 contai...@cdata_html
>
> Nothing happens.
>
My first thought would be to try adding a containedin of whatever
syntax item is currently matching on the CDATA region.
If that doesn't work, you may want to see if you're missing anything
from here:
http://vim.wikia.com/wiki/Different_syntax_highlighting_within_regions_of_a_file
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