The token \jobname
amusingly produces a sequence of characters
whose category code is 12 (“other”), regardless of what the characters
actually are. Since one inevitably has to compare a macro with the
contents of another macro (using \ifx
, somewhere) one needs to
create a macro whose expansion looks the same as the expansion of
\jobname
. We find we can do this with \meaning
, if we strip
the “\show
command” prefix.
The full command looks like: <!– {% raw %} –
>
<
!– {% endraw %} –
>
A
nd it's used as:
\if\jobis{mainfile}% \message{YES}% \else \message{NO}% \fi
Note that the command \StripPrefix
need not be defined if you're
using LaTeX - there's already an
internal command \strip@prefix
that you can
use.