Dan Doel wrote:
On Thu, Oct 31, 2013 at 11:53 AM, Charles Campbell
<charles.e.campb...@nasa.gov> wrote:
MMAMBMB
# a b b
# b b
MMMMM
At the time the syntax hilighter sees the "#" in "# b b", note that
'#\=\s*\zsb' DOES NOT MATCH.
However, the "M" syntax DOES MATCH, and so its highlighted as MyComment.
Syntax highlighting is tricky.
This does not explain why the bs in the second line are still not
matched even when the comment rule is removed.
Is it that the entire nextgroup is thrown away, because the # is not
officially part of the B match, so it is counted as not matching?
I note that removing the '#\=\s*\zs' portion from the B match:
syn clear
syntax match MyComment '#.*$' contains=A
syntax match A 'a' nextgroup=B skipwhite skipnl
syntax match B 'b' contained nextgroup=B skipwhite skipnl
highlight default link A Type
highlight default link B Error
highlight default link MyComment Comment
and using it on
# a b b b
b b
also shows the "b"s on the second line without highlighting. What I
think is happening is that MyComment matches to only one line which may
contain A; once a newline is encountered, the MyComment match
terminates, taking the A and B matches with it.
I tried using the extend keyword, but that didn't affect the resulting
highlighting.
Regards,
C Campbell
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