Thanks, this helps a lot!
Matthias
On May 29, 2007, at 1:22 PM, Peter Münster wrote:
> On Mon, 28 May 2007, Matthias Weber wrote:
>
>> is there a simple TeX/ConTeXt way to test in a TeX file whether a
>> link to an external document is broken
>> so that I get an error message if not?
>
> Quick and dirty:
>
> \def\UseURL[#1][#2]{%
> \executesystemcommand{%
> if wget -qO/dev/null #2 \letterbar\letterbar [ -f #2 ]; then
> echo \letterbackslash\letterbackslash useURL[#1][#2];
> else
> echo \letterbackslash\letterbackslash#1DoesNotExist;
> fi >texcmd.tmp}%
> \input texcmd.tmp}
>
> \setupcolors[state=start]
> \setupinteraction[state=start]
>
> \UseURL[fileOk][/tmp/real-file]
> \UseURL[fileNotOk][/tmp/not-existing-file]
> \UseURL[urlOk][http://contextgarden.net/]
> \UseURL[urlNotOk][http://no.contextgarden.net/]
>
> \starttext
> existing file: \from[fileOk]
>
> not existing file: \from[fileNotOk]
>
> existing url: \from[urlOk]
>
> not existing url: \from[urlNotOk]
> \stoptext
>
> Cheers, Peter
>
> --
> http://pmrb.free.fr/contact/
> ______________________________________________________________________
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>
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> wiki : http://contextgarden.net
> ______________________________________________________________________
> _____________
___________________________________________________________________________________
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 : https://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
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