Expandable \@testopt (and related) macros.
The package provides an expandable variant of the LaTeX kernel command \@testopt, named \@expandable@testopt, and a more general \@expandable@ifopt, both intended for package writers. Also we have a variant of \newcommand which uses these macros to check for optional arguments.
The author is Paul Ebermann. The package is Copyright © 2008 Paul Ebermann.
License: lppl Version: 0.3 Catalogued: 2009-03-08
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Documentation
Package documentation (Esperanto): exp-testopt.pdf.
Distributions
This package is included in MikTeX.