Re: numbered programlistings

[Hans Hagen <pragma@wxs.nl>]

At 07:45 PM 6/12/2002 +0200, Kris Hermans wrote:
>Hi again!
>
>I'm writing a programming tutorial with ConTeXt. Therefore I have
>programlistings that I want to reference in my text. My idea is to labels
>together with verbatim text.
>
>For instance:
>
>\definelabel[programlisting][text=listing,
>                              location=inmargin,
>                              headstyle=small]
>
>And in my text I write:
>
>\listing\starttyping
>/* first.c : my first C program */
>#include <stdio.h>
>
>int main()
>{
>   puts("Hello Everybody!");
>   return 0;
>}
>\stoptyping
>
>This all works fine, but I expected the label ("listing 1.1") to appear in
>the margin AT THE SAME LINE as the first line of my programlisting (/*
>first.c ... */). However, the label is somewhat above the actual verbatim
>text.

This is because there is a \blank line preceding the typing, so better is:

\definelabel[programlisting][text=listing,
                              headstyle=small]

And in my text I write:

\margintitle{\programlisting}

\starttyping
/* first.c : my first C program */
#include <stdio.h>

int main()
{
   puts("Hello Everybody!");
   return 0;
}
\stoptyping

However, i would go for:

\definetyping
   [listing]
   [before=\margintitle{\programlisting}\blank,
    after=\blank]

\startlisting
/* first.c : my first C program */
#include <stdio.h>

int main()
{
   puts("Hello Everybody!");
   return 0;
}
\stoplisting

Which is (1) more structured, (2) can be adapted without changing the 
source, (3) saves keystrokes, and (4) looks nicer in the source code.

Hans
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