Ben Fritz wrote:
On Jan 9, 10:46 am, Charles Campbell<[email protected]>
wrote:
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.
I thought in the second ordering, the \zs and \ze in the first rule
allowed the second rule to match. Is this not the case? Maybe just
using stuff described in :he :syn-pattern-offset instead of \zs and
\ze will allow this to work as expected?
A rule of syntax highlighting: the syntax highlighting engine doesn't
look back. Applied to this case, the Conceal group has, due to
sequencing priority, "eaten" the « character. Trying this with the
Conceal group absent shows what the \zs does visually: the «is not
highlighted, but the subsequent text is.
The first rule set seems to me more like it "should work", actually,
than the second. Syntax highlighting is tricky.
Regards,
Chip
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