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% amsmidx.sty
% 2001/09/26
% preliminary version
%
% Package for use with AMS document classes to produce multiple indexes
%
% Adapted from multind.sty (version 1.1b, 31 August 1991), by F.W. Long
% Modified \makeindex and \index commands to allow multiple indexes
% The first argument of \makeindex and \index is the index file name.
% These commands now work more like \@starttoc and \addcontentsline.
% \index is no longer defined inside \makeindex but determines whether
% the appropriate file is defined before writing to it.
\def\makeindex#1{\begingroup
\makeatletter
\if@filesw \expandafter\newwrite\csname #1@idxfile\endcsname
\expandafter\immediate\openout \csname #1@idxfile\endcsname #1.idx\relax
\typeout{Writing index file #1.idx }\fi \endgroup}
\def\index#1{\@bsphack
\begingroup
\def\protect##1{\string##1\space}\@sanitize
\@wrindex{#1}}
% \@wrindex now checks that the appropriate file is defined.
\def\@wrindex#1#2{\let\thepage\relax
\xdef\@gtempa{\@ifundefined{#1@idxfile}{}{%
\expandafter\write\csname #1@idxfile\endcsname
{\string\indexentry{#2}{\thepage}}}}%
\endgroup\@gtempa
\if@nobreak \ifvmode\nobreak\fi\fi
\@esphack}
% Modified \printindex command to accept the name of an index file.
\renewcommand{\printindex}[1]{\@input{#1.ind}}
% Alternate command with new name:
% \Printindex locally modifies some formatting commands for an improved
% appearance, sets the index title and reads in the requested index file.
% #1 = file name, #2 = index title
\newcommand\Printindex[2]{%
\begingroup
\cleardoublepage
\def\indexname{#2}%
\raggedright
\hyphenpenalty=10000
\renewcommand{\seename}{see~also}
\renewcommand{\subitem}{\par\hangindent 3em\hspace*{1em}}
\@input{#1.ind}%
\endgroup
}
\endinput
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Instructions for using amsmidx.sty
Put these commands in the preamble:
\usepackage{amsmidx}
\makeindex{filename-a}
\makeindex{filename-b}
To identify the index entries in the text:
\index{filename-a}{index term}
\index{filename-b}{index term}
In the backmatter, where the indexes are to appear:
\Printindex{filename-a}{First Index}
\Printindex{filename-b}{Second Index}
Two files of index terms, filename-a.idx and filename-b.idx, will be
generated. To sort the index terms, process the two .idx files
separately with Makeindex; this will create the files filename-a.ind
and filename-b.ind, which will in turn be input by \Printindex.
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