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#! /usr/bin/perl -w
eval 'exec perl -S $0 ${1+"$@"}'
if 0; #$running_under_some_shell
# ======================================================================
# genindex.pl
# Copyright (c) Markus Kohm, 2002
#
# This file is part of the LaTeX2e KOMA-Script-Bundle
#
# This file can be redistributed and/or modified under the terms
# of the LaTeX Project Public License Version 1.0 distributed
# together with this file. See LEGAL.TXT or LEGALDE.TXT.
#
# This bundle is written specialy for use at german-language. So the
# main documentation is german. There is also a english documentation,
# but this is NOT up-to-date.
# ----------------------------------------------------------------------
# genindex.pl
# Copyright (c) Markus Kohm, 2002
#
# Diese Datei ist Teil des LaTeX2e KOMA-Script-Pakets.
#
# Diese Datei kann nach den Regeln der LaTeX Project Public
# Licence Version 1.0, wie sie zusammen mit dieser Datei verteilt
# wird, weiterverbreitet und/oder modifiziert werden. Siehe dazu
# auch LEGAL.TXT oder LEGALDE.TXT.
#
# Dieses Paket ist fuer den deutschen Sprachraum konzipiert. Daher ist
# auch diese Anleitung komplett in Deutsch. Zwar existiert auch eine
# englische Version der Anleitung, diese hinkt der deutschen Anleitung
# jedoch fast immer hinterher.
# ======================================================================
# This perl scripts splits the index of scrguide or scrguien into
# several files, each with one index section.
#
# Usage: genindex.pl <ind-file>
#
# If <ind-file> has no extension ``.ind'', this extension will be added.
# ----------------------------------------------------------------------
# Dieses perl Script spaltet den Index des scrguide in mehrere getrennte
# Dateien auf, von denen jede jeweils einen Index-Abschnitt enthlt.
#
# Verwendung: genindex.pl <ind-Datei>
#
# Wenn die <ind-Datei> ohne Endung ".ind" angegeben wird, so wird diese
# Endung automatisch angehngt.
# ======================================================================
use strict;
use Fcntl;
my $indexinput = $ARGV[0];
my $indexbase;
my $line;
my $entry = "";
my %indfile;
$indexinput = "$indexinput.ind" if ( ! ( $indexinput =~ /^.*\.ind\z/ ) );
$indexbase = $1 if $indexinput =~ /^(.*)\.ind/;
print "Generate multiindex for $indexinput\n";
# pass 1: search for and open destination index files
open (IDX, "<$indexinput") ||
die "Cannot open $indexinput for reading\n";
print "Search for index:\n";
while ( <IDX> ) {
if ( /\\UseIndex *\{([^\}]*)\}/ ) {
my $file;
if ( !$indfile{"$1"} ) {
print " Open new index $indexbase-$1.ind\n";
open ( $file, ">$indexbase-$1.ind" ) ||
die "Cannot open $indexbase-$1.ind for writing\n";
$indfile{"$1"} = $file;
}
}
}
# we must have a general index
if ( !$indfile{"gen"} ) {
print " Open new index $indexbase-gen.ind\n" ;
open ( $indfile{"gen"}, ">indexbase-gen.ind" ) ||
die "Cannot open $indexbase-gen.ind for writing\n";
}
# pass 2: copy to destination index files
seek (IDX, 0, 0) ||
die "Cannot rewind $indexinput\n";
print "Copy entries:\n";
# step 1: copy to every index file until first \indexsectione
while ( defined( ( $line = <IDX> ) )
&& ( ! ( $line =~ /^( *\\indexsection *\{)/ ) ) ) {
printtoallind( "$line" );
$line = "";
}
# copy also \indexsection-line
printtoallind( "$line" );
# step 2: read complete \indexsection, \indexspace, \item, \subitem or
# \subsubitem and process it (= copy it to destination index files)
while ( $line = <IDX> ) {
if ( $line =~ /^ *((\\indexsection|\\end) *\{|\\indexspace)/ ) {
processentry( "$entry" );
$entry = "";
printtoallind( "$line" );
} elsif ( $line =~ /^ *\\(sub(sub)?)?item +/ ) {
processentry( "$entry" );
$entry = $line;
} else {
$entry = "$entry$line";
}
}
close (IDX);
closeallind ();
# post optimization of all destination index files
print "Optimize every index:\n";
optimizeallind ();
exit;
# close all destination index files
sub closeallind {
my $name;
my $file;
while (($name,$file) = each %indfile) {
print " Close $indexbase-$name.ind\n" ;
close ($file);
$indfile{"$name"}=0;
}
}
# optimize all destination index files
sub optimizeallind {
my $name;
my $file;
while (($name,$file) = each %indfile) {
print " $indexbase-$name.ind\n";
optimizeind( "$name" );
}
}
# print arg 1 to all destination index files
sub printtoallind {
my $line = shift;
my $name;
my $file;
while (($name,$file) = each %indfile) {
print ($file $line);
}
}
# process an index entry (copy it to valid destination index files)
sub processentry {
my $line = shift;
my $file = $indfile{"gen"};
if ( $line =~ /\\UseIndex *\{([^\}]*)\} *(.*)/ ) {
$file = $indfile{"$1"};
print ($file $line);
} else {
print ($file $line);
}
}
# optimize an index files (remove \indexsection without \item)
sub optimizeind {
my $idx = shift;
my $interstuff = "";
my $line;
open (IN, "<$indexbase-$idx.ind" ) ||
die "Cannot open $indexbase-$idx.ind for reading";
open (OUT, ">$indexbase-$idx.new" ) ||
die "Cannot open $indexbase-$idx.new for writing";
while ( $line=<IN> ) {
if ( $line =~ /^ *\\indexspace/ ) {
$interstuff = "\n$line";
} elsif ( ( $line =~ /^ *\\indexsection *\{/ ) ||
( $line =~ /^$/ ) ) {
$interstuff = "$interstuff$line";
} else {
print (OUT $interstuff) if ( !( $interstuff =~ /^$/ )
&& !( $line =~ /^ *\\end\{theindex\}/ ) );
$interstuff = "";
print (OUT $line);
}
}
close (OUT);
close (IN);
unlink "$indexbase-$idx.ind" ||
die "Cannot delete $indexbase-$idx.ind";
rename "$indexbase-$idx.new", "$indexbase-$idx.ind" ||
die "Cannot rename $indexbase-$idx.new to indexbase-$idx.ind";
}
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