[OS X TeX] Index

[George Gratzer via MacOSX-TeX]

I am perplexed. See this article:

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\documentclass{amsart}  
\usepackage{newlattice} 
\makeindex
\newcommand{\tikzname}{TiKz}
%copied from amslatex.tex \com{} makes a command
\newcommand{\bslash}{\symbol{'134}}%backslash
\newcommand{\bsl}{{\ttt{\bslash}}}
\newcommand{\com}[1]{\textup{{\ttt{\bsl#1}}}}%command \ + \texttt + textup

\begin{document}

xxx

\index{draw@\com{draw}, \tikzname{} command}%
\index{tikzname command@\tikzname{} command!\com{draw}}%

\index{draw@\com{draw}, \tikzname{} command}%
\index{tikzname command@\tikzname{} command!\com{draw}}%

\index{foreach@\com{foreach}, \tikzname{} command}%
\index{tikzname command@\tikzname{} command!\com{foreach}}%

\index{fill@\com{fill}, \tikzname{} command}%
\index{tikzname command@\tikzname{} command!\com{{fill}}}%
\index{filldraw@\com{filldraw}, \tikzname{} command}%
\index{tikzname command@\tikzname{} command!\com{{filldraw}}}%

\printindex

\end{document}
---------------------------------------------------------------------------------------------------------------------------------

The Index part, typeset is:
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As you can see, the items are not in alphabetic order. 

What gives?

GG


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