Re: Syntax highlighting error with Bibtex files

Looks good to me, thanks!

@Bram: Can you pull that patch?

Thanks and best regards,
Bernd

Am Sonntag, den 11.09.2016, 17:13 -0700 schrieb William Pettersson:
> cc'ed Bernd Feige as maintainer of bib.tex syntax file. Fix can be
> found in
> branch https://github.com/WPettersson/vim/tree/bibtex-syntax-escaped-
> braces
>
> There appears to be a bug in the syntax highlighting for Bibtex files
> (*.bib).
> Note that this bug has nothing to do with compiling anything. For any
> fields
> that contain set-theoretic notation (like \{a,b\}) the syntax file
> will see the
> (escaped) opening brace, but never the closing brace (as the closing
> brace
> matches skip). For instance:
>
>     TITLE = {The set $\{a,b\}$ has 2 elements},
>
> This results in all syntax highlighting not functioning after such an
> entry.
> These escaped braces should only occur inside math mode (inside pairs
> of $'s),
> so my own easy fix is to add a bibMath region as follows
>
>     syn region bibMath contained start=/\$/ end=/\$/ skip=/\(\\\$\)/
>
> and then add bibMath to the bibVarContents cluster
>
>     syn cluster bibVarContents
> contains=bibUnescapedSpecial,bibMath,bibBrace,bibParen
>
> Note that bibMath does not contain bibVarContents. Basically I just
> ignore
> anything inside a section of math, to avoid trying to match up all
> the escaped
> brackets, parentheses and braces inside the math.
>
> Another possible solution would be to make sure that the start of the
> bibBrace
> region doesn't match \{ but it feels like that should also be then
> extended to
> bibParents and possibly further, and I don't know how well the vim
> syntax
> engine would perform with a negative lookbehind regex. My fix seems
> more
> appropriate in the sense that I don't think the Bibtex syntax file
> should try
> to match all possible Latex syntax.
>
>
> The above example is faked, but this does really come up. One example
> that I've
> met with can be seen at https://ewpettersson.se/sample.bib which is
> the bibtex
> entry for http://onlinelibrary.wiley.com/doi/10.1002/jcd.20001/abstra
> ct
>
> For the record, I'm running vim-7.4.769 under Gentoo, but I did check
> that the
> latest copy of bib.vim in Github also has this issue.
>
> -- 

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.