On Wednesday, July 30, 2014 11:58:05 AM UTC-5, Benjamin Klein wrote:
> In the case of including expressions in a string, I don’t necessarily want to
> highlight the expression boundaries as part of the string. For example:
> Strings are green. If I have a string like this:
>
>
> "This is ${foo}."
>
> I can highlight `foo` in its own group, denoted by the ${ and }. But the ${}
> characters are green, along with the rest of the text of the string. Is there
> a way to avoid this?
>
A couple ways.
For syntax regions there is the "matchgroup" keyword to highlight start/end
markers separately from the rest of the region. :help :syn-matchgroup
For either matches or regions, there are pattern offsets you can apply, e.g.
"hs=s+2,he=e-1" which specify a number of characters to leave out of the
highlight but leaving the matched region alone, as well as a few others that
specify where a match can begin/end. :help :syn-pattern-offset
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