From: Aditya Mahajan <adityam@umich.edu>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Custom color schemes in t-vim
Date: Sat, 16 May 2020 11:03:29 -0400 (EDT) [thread overview]
Message-ID: <nycvar.YAK.7.77.849.2005161100420.225319@nqv-guvaxcnq> (raw)
In-Reply-To: <nycvar.YAK.7.77.849.2005161033360.225319@nqv-guvaxcnq>
On Sat, 16 May 2020, Aditya Mahajan wrote:
> On Sat, 16 May 2020, Nicola wrote:
>
>> On 2020-05-14, Aditya Mahajan <adityam@umich.edu> wrote:
>>> On Thu, 14 May 2020, Nicola wrote:
>>>
>>>> Quick question: Is \startcolorscheme... \stopcolorscheme (still)
>>>> supported by t-vim?
>>
>>> It is supposed to work. If it doesn't, then it is a bug. Could you
>>> provide a complete MWE.
>>
>> Please find a MWE at the bottom of this post.
>>
>> The expected behaviour is that the keyword `function` in the JavaScript
>> snippet and `foobar` in the Ruby snippet should be colored and in
>> italics, as comments are. The respective Vim highlight groups are
>> `javaScriptFunction` and `rubyMethodName`, which both resolve to
>> `Function`.
>
> The reason that there is no highlighting is because the generated `.vimout`
> does not contain any `\SYN[rubyMethodName]` or `\SYN[javaScriptFunction]` for
> the following reason:
>
> Vim has the concept of a hierarchy of names for the syntax highlighting
> regions. For example, $VIMRUNTIME/syntax/ruby.rb contains the following
> lines:
>
> hi def link rubyMethodName rubyFunction
> hi def link rubyFunction Function
>
> So, `rubyMethodName` maps to `rubyFunction`, which in turn maps to
> `Function`. Now, a vim colorscheme first checks if a highlighting style is
> available for `rubyMethodName`; if not it tries `rubyFunction`; and if not it
> tries `Function`.
>
> Although something similar might have been possible in 2context.vim, I follow
> the `TOHtml` function of vim, and simply created a single tag for each syntax
> highlighting element, which in this case is `Function`. So, there is no tag
> generated for `rubyMethodName` and that is why changing the syntaxhighlight
> for that doesn't change anything.
Moreover, if you comment line line 126 of `2context.vim`
"let s:id = synIDtrans (s:id)
[If you make a local copy of 2context.vim, then you need to run the file with `--mode=dev-vim` to ensure that the local copy is used]
Then the ruby example generates the following file:
\SYNBOL{}\SYN[rubyComment]{# Ruby program listing}\SYNEOL{}
\SYNBOL{}\SYN[rubyDefine]{def}\SYN[rubyMethodBlock]{ }\SYN[rubyMethodName]{foobar}\SYNEOL{}
\SYNBOL{}\SYN[rubyMethodBlock]{ print(}\SYN[rubyStringDelimiter]{"}\SYN[rubyString]{Hello World}\SYN[rubyStringDelimiter]{"}\SYN[rubyMethodBlock]{)}\SYNEOL{}
\SYNBOL{}\SYN[rubyDefine]{end}\SYNEOL{}
So, if you are willing to define wrappers for all ruby syntax blocks, then I can provide a configuration option so that `2context` does not apply that line.
Aditya
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next prev parent reply other threads:[~2020-05-16 15:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-14 10:42 Nicola
2020-05-14 15:44 ` Aditya Mahajan
2020-05-16 11:34 ` Nicola
2020-05-16 14:46 ` Aditya Mahajan
2020-05-16 15:03 ` Aditya Mahajan [this message]
2020-05-16 19:24 ` Nicola
2020-05-17 0:42 ` Aditya Mahajan
2020-05-17 6:36 ` Aditya Mahajan
2020-05-17 7:41 ` Aditya Mahajan
2020-05-17 8:34 ` Nicola
2020-05-17 10:27 ` Nicola
2020-05-17 15:21 ` Aditya Mahajan
2020-05-18 5:30 ` Aditya Mahajan
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