Re: Custom syntax highlighting

[Aditya Mahajan <adityam@umich.edu>]

On Wed, 2 Mar 2016, Nicola wrote:

> On 2016-03-02 02:14:33 +0000, Aditya Mahajan said:
>> 
>> I do not load the default vimrc, because that drastically slows down the
>> module.
>
> That makes sense. So, Vim is run with something like `vim -u NONE`, I 
> guess.

Yes. And if the vimrc option is used, then it is saved on file, and vim -u 
\vimrc_filename is run.

>>  Instead, there is an option to create a specific vimrc using:
>> 
>> \startvimrc[name=pgsql]
>> let g:sql_type_default='pgsql'
>> \stopvimrc
>> 
>> and then
>> 
>> \definevimtyping[SQL][..., vimrc=pgsql, ...]
>> 
>> By default, the script searches everything in `runtimepath`. If your 
> local
>> vim folder is not in runtimepath, you can set the runtimepath in the 
> vimrc
>> above.
>
> I had to set both runtimepath and nocompatible. Maybe this should be noted
> in the docs, or the module could run `vim -u NONE -N` (who needs compatible
> nowadays?). So, for future reference, this works:

I explicitly set compatible (but I don't remember why I did that anymore). 
This is the full command that is run:


\def\vimtyping@filter_command
   {vim -u \vimrc_filename\space % read global config file
         % --startuptime log
         % -V3log
        -X % dont connect to X server
        -i NONE % dont use viminfo file
        --noplugin % dont load plugins
        -e % run in ex mode
        -s % silent
        -C % set compatible
        -n % no swap file
        -c "syntax manual" % don't load filetype detection
        -c "set syntax=\externalfilterparameter\c!syntax" %
        -c "set tabstop=\externalfilterparameter\c!tab" %
        % vim only accepts 10 -c commands, so we combine a few let 
statements
        -c "let contextstartline=\externalfilterparameter\c!start 
\letterbar\space %
            let contextstopline=\externalfilterparameter\c!stop 
\letterbar\space %
            let 
strip=\getvalue{\vimtyping@id-\c!strip-\externalfilterparameter\c!strip}" 
%
        -c "let 
escapecomments=\getvalue{\vimtyping@id-\c!escape-\externalfilterparameter\c!escape}" 
%
        -c "let highlight=[\externalfilterparameter\c!highlight]" %
        \vimrc_extras\space
        -c "source \vimtyping@script_name" %
        -c "qa" %
        \externalfilterinputfile\space
        \externalfilteroutputfile}


I'll run my test suite with -N instead of -C. If everything works, I'll 
change to -N.

> \startvimrc[name=pgsql]
> set nocompatible
> set runtimepath+=~/.vim/bundle/pgsql
> let g:sql_type_default='pgsql'
> % ...
> \stopvimrc

I will add a note to the docs about runtimepath. When I wrote the module, 
bundle was not popular, but it is the default now.

Aditya
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