Peter Rolf wrote:
> Hans Hagen wrote:
>
>> Peter Rolf wrote:
>>
>>> Hans Hagen wrote:
>>>
>>>
>>>> Peter Rolf wrote:
>>>>
>>>>
>>>>> \processaction[\FOO][
>>>>> |=>,
>>>>> unknown=>]
>>>>>
>>>>>
>>>>>
>>>> hm, | and ~ are always special, put \string in fron tof it, or use
>>>> \letterbar and \lettertilde
>>>>
>>>>
>>>>
>>> hm, same error if I use \string| or \letterbar
>>>
>>>
>> do you have a minimal tes file?
>>
>> a solution may be
>>
>> \let\savedbarcommand=|
>>
>> \unexpanded\def|{\savedbarcommand}
>>
>>
> Yes, this works.
>
> I've tried to create a minimal example, but in the end all points to the
> fact, that "|" is a special character. So even the use of "|" as
> argument of some macro like
>
> \FOO[data={||abcx}]{..}
>
> is not recommended (without prior catcode change). I use the symbols as
> an abbreviation for different MP graphics, and it wouldn't make sense to
> write \letterbar every time. Looks like I have to choose a different symbol.
>
still experimental is that you can change the catcodetable (pseudo in
mkii, native in mkiv) but i won't bring up it's dirty details here
\let\savedbarcommand=|
\unexpanded\def|{\savedbarcommand}
this makes them unexpandable but still using ~ and | for such purposes is kind
of tricky
Hans
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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
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