Re: How does vim determine the way the text is colored in the section of ":help group-name"?

2015-06-01 11:22 GMT+03:00 LCD 47 <lcd047@gmail.com>:
> On 31 May 2015, Peng Yu <pengyu.ut@gmail.com> wrote:
>> Hi,
>>
>> I see the following text in ":help group-name" colored. But when
>> I checked the file syntax.txt, I didn't see anything special for
>> indicating the colors. Could anybody let me know how vim determines
>> the colors? Thanks.
> [...]
>
> This function (that I picked up from somebody else a few years ago)
> is pretty useful for showing the exact highlighting groups in use:
>
> nnoremap <silent> <Leader>hi :call <SID>SynStack()<CR>
> function! <SID>SynStack()
> if !exists("*synstack")
> return
> endif
> echo map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")')
> endfunc

I define this as a command:

command -bar ShowSyntax :echo 'Normal
'.join(map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")'))

. Note: `Normal` at the start. Does not let you forget what is the
first layer because it is first *always*. You can have empty
synstack() output and empty `getmatches()`, but still have
non-terminal-default highlighting: this would be Normal. Also has no
visual garbage arising from list usage (`[`, `'`…`'`, `]`).

>
> /lcd
>
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