General ⇒ Recovery of Value by Condition

[leo simon]

Hi,

I'm trying to condition on the current directory using the "currfile-abspath" package from currfile by means of ifthen. The command \getpwd does recover the pwd, but for some reason I can't condition on the value of \thepwd using ifthen. The problem seems to be with the ifthen command, since I *can* condition on the value of \currfilepath so long as I use the provided \ifcurrfilepath, but *not* if I use an ifthen statement.


Here's an example.

Code: Select all

\documentclass{amsart}
\usepackage{currfile}
\usepackage{currfile-abspath}
\usepackage{ifthen}

\begin{document}
\getpwd

The current file name is \currfilepath

Pwd is set to \thepwd

\ifcurrfilepath{testCurrfile.tex}
    {The current filename is \currfilepath}
    {Apparently the current filename is not \currfilepath}

\ifthenelse{\equal{\currfilepath}{testCurrfile.tex}}
    {The current filename is \currfilepath}
    {Apparently the current filename is not \currfilepath}

\ifthenelse{\equal{\thepwd}{/tmp}}
    {The current directory is \thepwd}
    {Apparently the current directory is not \thepwd}


\end{document}

If I run this from, say, /tmp, (I'm using Linux) then \thepwd correctly returns /tmp/ but the ifthen conditional fails. Also the \ifcurrfilepath returns true, but the \equal{\currfilepath}{testCurrfile.tex} returns false.



Any advice would be most appreciated, Thanks

[tom]

Hi!

It seems \equal only works with numbers. Use \pdf@strcmp instead (pdftexcmds).

Code: Select all

%Preamble
\usepackage[abspath]{currfile}
\usepackage{ifthen, pdftexcmds}

\newif\ifequal
\makeatletter
\def\isequal#1#2{
	\ifnum\pdf@strcmp{#1}{#2}=0
		\equaltrue
	\else
		\equalfalse
	\fi
}
\makeatother

%Document
\isequal{\currfilepath}{testCurrfile.tex}
\ifequal
	The current filename is \currfilepath
\else
	Apparently the current filename is not \currfilepath
\fi

HTH,
Tom

[leo simon]

Thank you very much indeed, Tom, this is perfect, Leo