Re: t-vim module: math in "normal" code and background color

[Henri Menke <henrimenke@gmail.com>]

On Mon, 2017-07-17 at 21:13 +0200, Gerion Entrup wrote:
> Hi,
> 
> I have two questions with the vim module.
> 
> 1. I want to use the math mode inside the code. I've seen the escape option, 
> e.g. here [1], but this seems to work only with comments. Is there a 
> possibility to use it directly in the code, too?
> 
> Minimal example:
> ```
> \usemodule[vim]
> \definevimtyping[python][syntax=python, escape=on]
> 
> \starttext
> \startpython
> # Returns \m{\sum_{i=1}^{n}i}
> def sum_upto(\m{n \in \mathbb{N}})
>     r = range(1, \m{n} + 1)
>     return sum(r)
> \stoppython
> \stoptext
> ```
> 
> 2. It would be cool, if I can define some background color for the code. 
> Unfortunately I'm very new to context and haven't seen a direct option. I 
> assume this is possible with some kind of extra environment around the code?

Background is no problem, escape in code is not implemented in t-vim.  I filed a feature request for
/BTEX ... /ETEX escaping as in regular typing on Aditya's GitHub: https://github.com/adityam/filter/
issues/23


\definetextbackground
  [verbatim]
  [location=paragraph]

\usemodule[vim]

\definevimtyping
  [python]
  [syntax=python,
   escape=on,
   before={\starttextbackground[verbatim]},
   after={\stoptextbackground}]

\setuptyping
  [before={\starttextbackground[verbatim]},
   after={\stoptextbackground}]

\starttext

\starttyping[escape=yes]
# Returns /BTEX\m{\sum_{i=1}^{n}i}/ETEX
def sum_upto(/BTEX\m{n \in \mathbb{N}}/ETEX)
    r = range(1, \m{n} + 1)
    return sum(r)
\stoptyping

\startpython
# Returns \m{\sum_{i=1}^{n}i}
def sum_upto(\m{n \in \mathbb{N}}w)
    r = range(1, \m{n} + 1)
    return sum(r)
\stoppython

\stoptext


> (I've subscribed the list, so you don't have to CC me.)
> 
> Thank you in advance,
> Gerion
> 
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