nico wrote:
> Hello,
>
> For those who know, I'm trying to have the DocBook callout mechanism with
> context. Basically, there are some numbers in lines of verbatim text, and
> below the verbatim text the numbers are used to explain the portion of the
> text (kind of footnote). Typically the numbers are rendered white in black
> circle. I could use the Dingbats numbers, but it is limited to 10, so that
> I emulated them with the following code to be able to go up to 99.
>
> The questions I have:
> - Is it the right way to do it in context (do I really need metafont?
> Simpler, smarter method?)
This is pretty smart, I'd say. Of course it would be better to have an
official font with encircled numbers for reasons of efficiency, but this
looks pretty good and the code is quite clean so i believe you did
well enough. One remark only: if you would know that want them all the
same size (beforehand), you can call \evalwidth only once.
> - What should I do to make them as anchors, so that it can be
> cross-referenced (I mean, one can click on a hot spot that jump to the
> number in the verbatim text).
Like this maybe:
\def\markline#1%
{\conum{#1}%
\expanded{\textreference[line#1]{\noexpand\conum{#1}}}}
\def\refline#1{\in{line }[line#1]}
\dorecurse{99}{\markline{\recurselevel}, }
\dorecurse{99}{\refline{\recurselevel}, }
Cheers, taco
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