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. Greetings, Peter
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