Joey McCollum via ntg-context schrieb am 10.10.2021 um 05:42:
The test using \removepunctuation that you provided does what it
should be doing (it produces 6 instances of "test-test" with the
intervening punctuation mark in each case removed), but it doesn't do
what I'm trying to do in the MWE above. I'm trying to take certain
punctuation marks that follow the \autopuncttest macro and place them
before it instead. Looking at the typo-chr .lua and .mkiv files, I see
that there are \pushpunctuation and \poppunctuationmethods in addition
to the \removepunctuation method. These might be useful for this
purpose, but in any case, I still have to check if the trailing
character is one of the characters in a specified set/string, and this
is where the error is arising.
Add \protected (or \unexpanded) to your command definition.
\startbtxrenderingdefinitions[myspec]
\protected\def\autopuncttest#1#2%
{\removeunwantedspaces%
\doifinstring{#2}{,.!?;:}{#2}%
\footnote{#1}%
\doifnotinstring{#2}{,.!?;:}{#2}}
\stopbtxrenderingdefinitions
Wolfgang
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