3

I have defined a conditional using the ifthen package as:

\newcommand{\Switch}[1] { \ifthenelse{\equal{#1}{1}}{Test1}{Test2} }

Running this command works without problem. However, if I try to place it within a Figure Caption, it produces an error (i.e., \Switch{1} and \caption{Example text} work fine, but \caption{\Switch{1}} does not).

Is this expected behavior? How do I work around it to produce a conditional caption?

4

The \ifthenelse command appears to be fragile? \caption{\protect\Switch{1}} works.

3

As a modern alternative, you can use the commands from the etoolbox package:

\newcommand*{\Switch}[1]{\ifnumequal{#1}{1}{Test1}{Test2}}

Or the xparse package:

\ExplSyntaxOn
\NewDocumentCommand \Switch { m } {
  \int_compare:nNnTF { #1 } = { \c_one } {
    Test1
  } {
    Test2
  }
}
\ExplSyntaxOff
  • 2
    You don't like \int_compare:nTF { #1=1 }? No need for using the constant here (in fact, we shouldn't be promoting their use much, really). – Will Robertson Jan 3 '11 at 16:31

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.