What is the good way to display errors in the console via \PackageError
when this command is used inside \ExplSyntaxOn ... \ExplSyntaxOff
because for the moment the spaces in the messages are not displayed (I know that is normal) ?
1 Answer
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is a space within ExplSyntax
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2But it should be noted that it is not a space at the beginning of a line (and a newline is not a space either) Therefore, if you put the text over several lines you have to add the
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at the end of the line not at the beginning of the next --- this is due to the way TeX drops newlines. Sep 2, 2020 at 8:33
~
is a space withinExplSyntax