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eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' && eval 'exec perl -S $0 $argv:q'
if 0;
use strict;
$^W=1; # turn warning on
#
# adjust_checksum.pl
#
# Copyright (C) 2006-2011 by Heiko Oberdiek <heiko.oberdiek at googlemail.com>
#
# This work may be distributed and/or modified under the
# conditions of the LaTeX Project Public License, either
# version 1.3 of this license or (at your option) any later
# version. The latest version of this license is in
# http://www.latex-project.org/lppl.txt
# and version 1.3 or later is part of all distributions of
# LaTeX version 2003/12/01 or later.
#
# This work has the LPPL maintenance status "maintained".
#
# This Current Maintainer of this work is Heiko Oberdiek.
#
# This work consists of this file.
#
# This file "adjust_checksum.pl" may be renamed to "adjust_checksum"
# for installation purposes.
#
my $file = "adjust_checksum.pl";
my $program = uc($&) if $file =~ /^\w+/;
my $version = "1.5";
my $date = "2011/04/15";
my $author = "Heiko Oberdiek";
my $copyright = "Copyright (c) 2002, 2006-2011 by $author.";
#
# Reqirements: Perl5, Linux
# History:
# 2002/03/15 v1.0: First release.
# 2006/02/12 v1.1: Fix for \Checksum{0}.
# 2007/06/15 v1.2: -draftmode added.
# 2007/09/25 v1.3: ltxdoc.cfg added to speed up.
# 2008/07/16 v1.4: Use of package `syntonly' for speed.
# 2011/04/15 v1.5: Email address updated.
#
my $prg_latex = 'latex -draftmode';
my $tempdir = "tmp_\L$program\E_$$";
### program identification
my $title = "$program $version, $date - $copyright\n";
my $usage = <<"END_OF_USAGE";
${title}Syntax: \L$program\E <file.dtx>
Function: Correction of "\\Checksum{...}" entry in <file.dtx>.
END_OF_USAGE
### error strings
my $Error = "!!! Error:"; # error prefix
### parse command line arguments
@ARGV == 1 or die $usage;
my $dtxfile = $ARGV[0];
print $title;
### check dtx file
-f $dtxfile or die "$Error File not found: '$dtxfile'!\n";
### signals
$SIG{__DIE__} = \&clean;
$SIG{'HUP'} = \&clean;
$SIG{'INT'} = \&clean;
$SIG{'QUIT'} = \&clean;
$SIG{'TERM'} = \&clean;
### make temp dir
mkdir $tempdir;
-d $tempdir or die "$Error Cannot create directory '$tempdir'!\n";
### copy dtx file
my $tempdtxfile = $dtxfile;
$tempdtxfile =~ s/.*\///;
my $latexfile = $tempdtxfile;
$tempdtxfile = $tempdir . "/" . $tempdtxfile;
system("cp $dtxfile $tempdtxfile");
-f $tempdtxfile or die "$Error Cannot copy dtx file!\n";
### create ltxdoc.cfg
my $ltxdocfile = $tempdir . "/" . 'ltxdoc.cfg';
open(OUT, '>', $ltxdocfile)
or die "!!! Error: Cannot open file `$ltxdocfile'!\n";
print OUT <<'__END__LTXDOC_CFG__';
\typeout{* version for adjust_checksum}
\AtEndOfClass{%
\DontCheckModules
\DisableCrossrefs
\def\DisableCrossrefs{\@bsphack\@esphack}%
\let\EnableCrossrefs\DisableCrossrefs
\let\CodelineIndex\relax
\let\PageIndex\relax
\let\CodelineNumbered\relax
\let\PrintChanges\relax
\let\PrintIndex\relax
\let\tableofcontents\relax
\PassOptionsToPackage{hyperref}{bookmarks=false}%
\PassOptionsToPackage{hypdoc}{numbered}%
\expandafter\xdef\csname ver@hypdoc.sty\endcsname{}%
\expandafter\xdef\csname ver@bmhydoc.sty\endcsname{}%
\nofiles
\hfuzz\maxdimen
\pretolerance10000 %
\tolerance10000 %
}
\endinput
__END__LTXDOC_CFG__
close(OUT);
### run latex
print "*** Running LaTeX ...\n";
my $argcode = "'\\AtBeginDocument{\\usepackage{syntonly}\\syntaxonly}"
. "\\input{$latexfile}'";
system("(cd $tempdir; $prg_latex --interaction=batchmode $argcode)");
my $logfile = $tempdtxfile;
$logfile =~ s/\.[^\.]+$//;
$logfile .= ".log";
-f $logfile or die "$Error Cannot find log file '$logfile'!\n";
### parse log file for CheckSum
print "*** Looking for checksum statement ...\n";
my $found = 0;
my $changed = 0;
my $old = 0;
my $new = 0;
open(LOG, $logfile) or die "$Error Cannot open log file '$logfile'!\n";
while (<LOG>) {
if (/\* Checksum passed \*/) {
$found = 1;
$changed = 0;
print "==> Checksum passed.\n";
last;
}
if (/Checksum not passed \((\d+)<>(\d+)\)/) {
$found = 1;
$changed = 1;
$old = $1;
$new = $2;
last;
}
if (/The checksum should be (\d+)!/) {
$found = 1;
$changed = 1;
$old = 0;
$new = $1;
last;
}
}
close(LOG);
$found or die "$Error Checksum statement not found in log file!\n";
if ($changed) {
print "==> Checksum not passed ($old<>$new).\n";
### write changed dtx file
print "*** Fixing Checksum ...\n";
my $fixed = 0;
open(IN, $tempdtxfile) or die "$Error Cannot open '$tempdtxfile'!\n";
open(OUT, ">$dtxfile") or die "$Error Cannot write '$dtxfile'!\n";
while (<IN>) {
if (s/\\CheckSum\{\d+\}/\\CheckSum{$new}/) {
$fixed++;
print "==> Checksum fixed:\n$_";
}
print OUT;
}
close(IN);
close(OUT);
$fixed > 0 or
die "$Error: \"\\CheckSum{...}\" not found!\n";
$fixed == 1 or
die "$Error: More than one \"\\CheckSum\" command found!\n";
}
### cleaning
sub clean {
if (-d $tempdir) {
unlink glob("$tempdir/*");
rmdir $tempdir;
}
}
clean();
print "*** Ready.\n";
__END__
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