Hello!

On Wed, Apr 19, 2017 at 05:52:36PM +0800, OOO wrote:

> Hi Dounin
>
> I have looked into your POC.
> I use this approach in yajs.vim too.
> The major problem of this approach is: It creates (sort of) redundant
> syntax group.
> For the listen directive:
>
> > syn keyword ngxDirectiveImportantListen listen
> > \ nextgroup=@ngxListenParams skipwhite skipempty
> > syn match ngxListenParam '\([^;{ \t\\]\|\\.\)\+'
> > \ contained
> > \ nextgroup=@ngxListenParams skipwhite skipempty
> > syn region ngxListenString start=+\z(["']\)+ end=+\z1+ skip=+\\\\\|\\\z1+
> > \ contained
> > \ nextgroup=@ngxListenParams skipwhite skipempty
> > syn match ngxListenComment '#.*$'
> > \ contained
> > \ nextgroup=@ngxListenParams skipwhite skipempty
> > syn keyword ngxListenOptions contained
> > \ default_server ssl http2 spdy proxy_protocol
> > \ setfib fastopen backlog rcvbuf sndbuf accept_filter deferred bind
> > \ ipv6only reuseport so_keepalive keepidle
> > \ nextgroup=@ngxListenParams skipwhite skipempty
> > syn cluster ngxListenParams
> > \ contains=ngxListenParam,ngxListenString,ngxListenComment
> > \ add=ngxListenOptions
>
> The ngxListenParam, ngxListenString, ngxListenComment and
> ngxListenParams are the redundant groups.
> For every directive we want to highlight params.
> We will have to add four more syntax group like this one.

Yes, this is exactly what I mean when I wrote that "this
approach doesn't allow to extend things easily
with highlighting of directive-specific parameters" in the
previous messages. The most simple solution would be to avoid
directive-specific parameters highlighting at all - nginx.vim
never did this in the past, so probably this is a good enough
solution.

--
Maxim Dounin
http://nginx.org/
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