Using LateX packages

Using LateX packages

[Holger Peters]

Hi,

I want to use a LaTeX Package (clrscode), or at least I want to port it 
to Context.

http://www.cs.dartmouth.edu/~thc/clrscode/

Is there some way to use LaTex Packages (I guess not).

Is there documentation about writing ConTeXt modules? (I didn't find any).

-- Holger

Re: Using LateX packages

[luigi scarso]

Holger Peters wrote:

> Hi,
>
> I want to use a LaTeX Package (clrscode), or at least I want to port 
> it to Context.
>
> http://www.cs.dartmouth.edu/~thc/clrscode/
>
> Is there some way to use LaTex Packages (I guess not).
>
> Is there documentation about writing ConTeXt modules? (I didn't find 
> any).
>
> -- Holger
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context
>
I always look into TEXMFMAIN/tex/context/base and try to figure how to 
make what I want;
on pragma site there are some docs  about to make pdf for  documentation.

luigi

Re: Using LateX packages

[h h extern]

Holger Peters wrote:
> Hi,
> 
> I want to use a LaTeX Package (clrscode), or at least I want to port it 
> to Context.
> 
> http://www.cs.dartmouth.edu/~thc/clrscode/

hm, not complex but mostly calls to latex font switches ans such

> Is there some way to use LaTex Packages (I guess not).

so you need to rewrite it

> Is there documentation about writing ConTeXt modules? (I didn't find any).

- try to use high level constructs (or ask me to provide them -)
- only use low level macroe documented in syst-*.tex and supp-*.tex (the ones 
mentioned in \macros, not the \dododo things)
- think fresh, forget about how other packages do it, think about what *you* 
want / need
- user modules are prefixed with t- (m- x- p- and s- are reserved for core 
modules and styles)

Now, about your code beautifier. Since you end up with additional markup anyway, 
why not go XML. You can then embed that in you tex document as usual (and have 
the full power of context available) but also use the code in webpages.

To give you an idea:

\starttext

\long\def\startcode#1\stopcode
  {\begingroup
   \startXMLmapping[code]%
   \enableXML\scantokens{#1}%
   \stopXMLmapping
   \endgroup}

\newcount\codedepth
\newdimen\codeindent \codeindent=1em

\def\incrementcodedepth
   {\advance\codedepth\plusone
    \ifnum\codedepth>\plusone \advance\leftskip\codeindent \fi
    \relax}

\def\decrementcodedepth
   {\ifnum\codedepth>\plusone \advance\leftskip-\codeindent \fi
    \advance\codedepth\minusone
    \relax}

\defineregister[function][functions]
\setupregister[function][expansion=yes]

\startXMLmapping[code]

   \defineXMLsingular [if]   {\endgraf{\bf if}\incrementcodedepth}
   \defineXMLsingular [then] {{\bf then}\endgraf\incrementcodedepth}
   \defineXMLsingular [else] {\endgraf\decrementcodedepth{\bf 
else}\endgraf\incrementcodedepth}
   \defineXMLsingular [end]  {\endgraf{\bf end}\decrementcodedepth\endgraf}

   \defineXMLsingular [int]  {{\bf int}\space\ignorespaces}
   \defineXMLsingular [bool] {{\bf bool}\space\ignorespaces}

   \defineXMLsingular [var]  [id='x'] {{\tf \XMLop{id}}}

   \defineXMLenvironment [function] [id=unknown]
     {\endgraf\function{\XMLop{id}}{\bf function}\space{\sl\XMLop{id}}\space}
     {\endgraf\incrementcodedepth}

   \defineXMLenvironment [return]
     {{\bf return}\space}
     {\endgraf}

   \defineXMLenvironment [c]
     {\bgroup\setups{code:comment}\type{//* }\ignorespaces}
     {\removeunwantedspaces\type{ *//}\egroup\endgraf}

\stopXMLmapping

\startsetups [code:comment]

   \defineXMLsingular [var]  [id='x'] {{\bs \XMLop{id}}}

\stopsetups

\startcode
<function id='ExampleFunction'>(<bool/> i; <int/> j)</function>
     <if/> (i&lt;10) <then/>
        <c>Let's add some comment here. Well, <var id='a'/> means nothing to me.</c>
        <var id='a'/> := 3
     <else/>
        <c>This is a funny language, a kind of mixture.</c>
        <var id='a'/> := 1
     <end/>
     <return>a</return>
<end/>
\stopcode

\blank[3*big]\placeregister[function][criterium=all]

\stoptext

If there is interest in such a module, i can write the auxiliary macros needed 
for it and others can define the languages.

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------

Re: Using LateX packages

[Holger Peters]

Hi,

thanks, that's a good start for me.

-- Holger

h h extern wrote:

> Holger Peters wrote:
>
>> Hi,
>>
>> I want to use a LaTeX Package (clrscode), or at least I want to port 
>> it to Context.
>>
>> http://www.cs.dartmouth.edu/~thc/clrscode/
>
>
> hm, not complex but mostly calls to latex font switches ans such
>
>> Is there some way to use LaTex Packages (I guess not).
>
>
> so you need to rewrite it
>
>> Is there documentation about writing ConTeXt modules? (I didn't find 
>> any).
>
>
> - try to use high level constructs (or ask me to provide them -)
> - only use low level macroe documented in syst-*.tex and supp-*.tex 
> (the ones mentioned in \macros, not the \dododo things)
> - think fresh, forget about how other packages do it, think about what 
> *you* want / need
> - user modules are prefixed with t- (m- x- p- and s- are reserved for 
> core modules and styles)
>
> Now, about your code beautifier. Since you end up with additional 
> markup anyway, why not go XML. You can then embed that in you tex 
> document as usual (and have the full power of context available) but 
> also use the code in webpages.
>
> To give you an idea:
>
> \starttext
>
> \long\def\startcode#1\stopcode
>  {\begingroup
>   \startXMLmapping[code]%
>   \enableXML\scantokens{#1}%
>   \stopXMLmapping
>   \endgroup}
>
> \newcount\codedepth
> \newdimen\codeindent \codeindent=1em
>
> \def\incrementcodedepth
>   {\advance\codedepth\plusone
>    \ifnum\codedepth>\plusone \advance\leftskip\codeindent \fi
>    \relax}
>
> \def\decrementcodedepth
>   {\ifnum\codedepth>\plusone \advance\leftskip-\codeindent \fi
>    \advance\codedepth\minusone
>    \relax}
>
> \defineregister[function][functions]
> \setupregister[function][expansion=yes]
>
> \startXMLmapping[code]
>
>   \defineXMLsingular [if]   {\endgraf{\bf if}\incrementcodedepth}
>   \defineXMLsingular [then] {{\bf then}\endgraf\incrementcodedepth}
>   \defineXMLsingular [else] {\endgraf\decrementcodedepth{\bf 
> else}\endgraf\incrementcodedepth}
>   \defineXMLsingular [end]  {\endgraf{\bf 
> end}\decrementcodedepth\endgraf}
>
>   \defineXMLsingular [int]  {{\bf int}\space\ignorespaces}
>   \defineXMLsingular [bool] {{\bf bool}\space\ignorespaces}
>
>   \defineXMLsingular [var]  [id='x'] {{\tf \XMLop{id}}}
>
>   \defineXMLenvironment [function] [id=unknown]
>     {\endgraf\function{\XMLop{id}}{\bf 
> function}\space{\sl\XMLop{id}}\space}
>     {\endgraf\incrementcodedepth}
>
>   \defineXMLenvironment [return]
>     {{\bf return}\space}
>     {\endgraf}
>
>   \defineXMLenvironment [c]
>     {\bgroup\setups{code:comment}\type{//* }\ignorespaces}
>     {\removeunwantedspaces\type{ *//}\egroup\endgraf}
>
> \stopXMLmapping
>
> \startsetups [code:comment]
>
>   \defineXMLsingular [var]  [id='x'] {{\bs \XMLop{id}}}
>
> \stopsetups
>
> \startcode
> <function id='ExampleFunction'>(<bool/> i; <int/> j)</function>
>     <if/> (i&lt;10) <then/>
>        <c>Let's add some comment here. Well, <var id='a'/> means 
> nothing to me.</c>
>        <var id='a'/> := 3
>     <else/>
>        <c>This is a funny language, a kind of mixture.</c>
>        <var id='a'/> := 1
>     <end/>
>     <return>a</return>
> <end/>
> \stopcode
>
> \blank[3*big]\placeregister[function][criterium=all]
>
> \stoptext
>
> If there is interest in such a module, i can write the auxiliary 
> macros needed for it and others can define the languages.
>
> Hans
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>      tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>                                              | www.pragma-pod.nl
> -----------------------------------------------------------------
>
> _______________________________________________
> ntg-context mailing list
> ntg-context@ntg.nl
> http://www.ntg.nl/mailman/listinfo/ntg-context
>

Re: Using LateX packages

[Patrick Gundlach]

Hello Holger,

> I want to use a LaTeX Package (clrscode), or at least I want to port
> it to Context.
>
> http://www.cs.dartmouth.edu/~thc/clrscode/
>
> Is there some way to use LaTex Packages (I guess not).

No. The low level commands are different in LaTeX and ConTeXt. The
named package does not use a lot of unique LaTeX features, so a port
shouldn't be too difficult. But as I guess from your question, you are
unable to do that, so the question is: who else does the job? And I
guess, nobody rises his hand now.


> Is there documentation about writing ConTeXt modules? (I didn't find any).

There is an API documentation project.... Taco has written a paper on
some commands, but there is much more to do.

Patrick
-- 
ConTeXt wiki: http://contextgarden.net

Re: Re: Using LateX packages => for algorithms

[Maurice Diamantini]

Bonjour à tous !

Le 25 janv. 05, à 22:16, Patrick Gundlach a écrit :

> Hello Holger,
>
>> I want to use a LaTeX Package (clrscode), or at least I want to port
>> it to Context.
>>
>> http://www.cs.dartmouth.edu/~thc/clrscode/
>>
>> Is there some way to use LaTex Packages (I guess not).
>
> No. The low level commands are different in LaTeX and ConTeXt. The
> named package does not use a lot of unique LaTeX features, so a port
> shouldn't be too difficult. But as I guess from your question, you are
> unable to do that, so the question is: who else does the job? And I
> guess, nobody rises his hand now.

See HH answer about a similar request.
I think this solution could be the start of your package.

Hans had extended the startlines environment with an option
which keep spaces, so that it's easier to write
algorithms without having some \it begining every lines !

http://www.ntg.nl/pipermail/ntg-context/2004/008169.html