问题
I would like to start a region with "virtual" to highlight all virtual methods with a different color, but being virtual already defined as keyword in the cpp.vim file, the region matching is never performed. I tried the following
syn region cVirtualMethod start="virtual" end=";" contains=cppType
hi cVirtualMethod ctermfg=red
but it does not work. It does however, if I remove virtual from cppType, but it highlights the whole line (fair enough, I'd prefer just the method name, but it's good as well).
Is there a way of leaving the cpp.vim virtual highlight (so virtual will end up green) and highlight just the method name ?
回答1:
Syntax keywords always take precedence over regions, so there's no way around removing virtual as a syntax keyword.
You can maintain the highlighting by defining a highlight group for the region start (and not the end; that's the reason for the reverse argument order):
:syn region cVirtualMethod end=";" matchgroup=cppType start="\<virtual\>"
Still, the entire inner region will be highlighted. To avoid that, you can add a contained :syn-match that matches only the method name, contain it in the above region, and put the :highlight on that instead of the region.
回答2:
can you test if this works for you?
hi! virtualMethod ctermfg=red
call matchadd("virtualMethod", "virtual.*;")
if it does, you can add autocmd for that matchadd call
来源：https://stackoverflow.com/questions/15523282/starting-a-syn-region-with-a-keyword