[NTG-context] Re: vim syntax highlighting bug?

[Vincent Hennebert <vhennebert@gmail.com>]

I was in touch with the maintainer of the context.vim syntax file about 
this. It turns out to be an issue with the lua.vim file that is included 
in the context one. Lua.vim highlights trailing parentheses as errors, 
but that’s done in a way that doesn’t work well when the file is 
included by other syntax files. It somehow steals the syntax context and 
makes Vim stay in Lua mode when it should go back to ConTeXt mode (I’m 
not too savvy of the details).

The maintainer came up with a workaround [1] to force returning to 
ConTeXt mode, although the parenthesis remains highlighted as an error.

That highlight bothers me, so my own workaround is to copy the lua.vim 
file in my own .vim/syntax folder and comment out the ‘syn match 
luaParenError ")"’ line (l.61 in my Vim version).

Maybe playing with the ‘contained’ keyword (in lua.vim) could lead to a 
proper solution, but I’m happy enough with my workaround that I haven’t 
felt the need to investigate this issue any further.

Hope that helps,
Vincent

[1] https://github.com/vim/vim/pull/13778

On 06/01/2024 12:28, Damien Thiriet via ntg-context wrote:
> Hello,
> 
> 
> Happy New Year!
> 
> I got into a bug in my Vim syntax highlighting version.
> Highlight stays in lua mode after ctxlua macro is closed.
> Here is a MWE, where «this should not be highlitghted as
> a comment indeed is.
> 
> \starttext
> 
> Hello!
> \ctxlua{context("does the parser work?")}
> 
> -- this should not be highlighted as a comment
> 
> \stoptext
> 
> Do other Vim users come into this?
> Is my syntax file outdated?
> 
> I am using this Vim version on OpenBSD 7.3 -stable:
> VIM - Vi IMproved 9.0 (2022 Jun 28, compiled Sep  6 2023 08:55:14)
> Included patches: 1-1876
> 
> Best regards,
> 
> Damien Thiriet
> ___________________________________________________________________________________
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> 
> maillist : ntg-context@ntg.nl / 
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> webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
> archive  : https://github.com/contextgarden/context
> wiki     : https://wiki.contextgarden.net
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