[OS X TeX] ifthen

[Michael Sharpe]

> On Jun 14, 2016, at 1:10 PM, Nitecki, Zbigniew H. <Zbigniew.Nitecki at tufts.edu> wrote:
> 
> Seems to work fine: if I follow it with a multi do statement it prints out the names of the colors in order.
> 
> However, when I try to use it in the following macro
>> \newcommand{\colornode}[5]{\rput*(#4,#5){\circlenode[linecolor=white]{V#1#2}{\textcolor{\strandcolor{#3}}{$\boldsymbol{\scriptsize{#3}}$}}}}
> 
> I get the error message that \equal is an undefined control sequence.  Is there something about expanding or protecting macros that I am missing, or what other stupid mistake have I made.  Attached is the pared-down total source code and log of the (unfinished) run..
> 
It  works if you replace your definition  of \strandcolor with

\def\strandcolor#1{%
\ifcase#1 %
\or orange%
\or black%
\or red%
\or purple%
\or green%
\fi}

Michael