Joey McCollum via ntg-context schrieb am 09.12.2021 um 15:08:
I believe \orelse might be what you want. It works with most \if...
macros, and it avoids nesting of \doifelse constructs. Here's an
example, which I use in conditionally removing preceding punctuation
if any other keys are defined before a specific one in an assignment:
```
% If any of the preceding keys was specified, then replace any
preceding punctuation with a space
% and typeset the number with its CSL abbreviation, followed by a
comma
\ifdefined\btxsbllocvol
\removeunwantedspaces\removepunctuation\btxspace
\orelse\ifdefined\btxsbllocno
\removeunwantedspaces\removepunctuation\btxspace
\fi
\orelse\ifdefined\btxsbllocpt
[...]
\fi
```
The \fi at the end of each \orelse branch is wrong.
\ifdefined\btxsbllocvol
...
\orelse\ifdefined\btxsbllocno
...
\else
...
\fi
Wolfgang
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