Re: colors for pretty-printing

[Hans Hagen <pragma@wxs.nl>]

On 7-12-2010 2:29, Aditya Mahajan wrote:
> On Tue, 7 Dec 2010, Peter Münster wrote:
>
>> On Mon, Dec 06 2010, Renaud AUBIN wrote:
>>>
>>> Concerning the color abstraction patch, one needs just to overload
>>> Ccomment, Cpreproc, Cstring, Ctype, Ckeyword, Cname and Cfuncnbound to
>>> use custom color scheme.
>>
>> You don't need that. There is already a standard interface for color
>> and style
>> configuration. Example:
>>
>> \setupstartstop[CSnippetComment][color=blue]
>>
>> So you can simplify t-pretty-c.mkiv:
>>
>> \unprotect
>>
>> \setupcolor[ema]
>>
>> \definestartstop
>> [CSnippetName]
>> [\c!color=darkgoldenrod,
>> \c!style=]
>
> I have not looked into the new verbatim code yet, but I have been
> thinking about a similar interface for a new module that uses external
> programs for syntax highlighting (sort of a superset of t-vim that will
> allow one to use other programs like pgyments, etc.).

it all boils down hooking in a parser then:

\startluacode
local function parser(s)
   local s = somexternalthing(s)
   -- feedback s
end

visualizers.register("myparser", { parser = parser })
\stopluacode

\starttyping[option=myparser]
....
\stoptyping

> Why are you using a C prefix for all environments? Isn't it better to
> use a syntax like this:
>
> \startsetups[verbatim:C]
> \definestartstop[SnippetName][color=...,style=...]
> \definestartstop[string][color=...,style=...]
> ....
> \stopsetups
>
> and then pass setups=verbatim:C to an appropriate \setup... command.
> That will make it easy to share the same syntax highlighting between
> different languages.

it's hard to come up with common names for characteristics for all those 
languages but at some point we can have a set predefined as default

btw, startstop can inherit (now):

\definestartstop
     [MetapostSnippet]
     [DefaultSnippet]

etc so there is no need for setups

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________