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ID 104🔗
Submitted by: Nicola Talbot 🦜
Date: 2015-12-08 09:41:49
Status Closed (Fixed)
Category mfirstuc
Version 2.01
Summary \capitalisewords fails with commands in non-first word

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\capitalisewords works okay when the first word contains a command, but not when subsequent words of the phrase contain commands or grouping.

Error message:

! You can't use `macro parameter character #' in math mode.
<recently read> ##


Download (436B)



%\newcommand*{\test}{\textbf{s}ample phrase}% works
%\newcommand*{\test}{\textbf{s}ample p\textbf{h}rase}% doesn't work
%\newcommand*{\test}{\textbf{s}ample {p}hrase}% doesn't work
\newcommand*{\test}{\textbf{s}ample \textbf{p}hrase}% doesn't work

Tagged text: \test.

First letter uppercase: \xmakefirstuc{\test}.

Title Case: \xcapitalisewords{\test}.



The cause is due to the use of etoolbox's \ifinlist macro, which is only intended for unformatted strings. The same error message is caused by:






The remedy is for mfirstuc (or its author, me) to follow the recommendation of the etoolbox manual and use a loop instead of \ifinlist. This will be fixed in the next version of mfirstuc.

Temporary patch for pre v2.02:


Update 2015-12-17: Fixed in version 2.02.



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