71 lines
2.2 KiB
Perl
Executable File
71 lines
2.2 KiB
Perl
Executable File
#!/usr/bin/perl -w
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#######################################################################################
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# A tool for updating .dtx files with a correspodning checksum counter #
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# Copyright (c) 2010, Deyan Ginev, released under the Gnu General Public License (GPL)#
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# see http://www.gnu.org/copyleft/gpl.html #
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#######################################################################################
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use strict;
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use Getopt::Long;
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use Modparse;
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use Pod::Usage;
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use Cwd qw(abs_path);
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####### start of program #######
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my $mode = "update"; #Default is update
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my $action = { "update" => \&update, "disable" => \&disable, "enable"=>\&enable };
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GetOptions("disable" => sub { $mode="disable"; },
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"enable" => sub { $mode="enable"; },
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"update" => sub { $mode="update"; });
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my ($path) = @ARGV;
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$path = abs_path($path);
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my ($volume,$dir,$file) = File::Spec->splitpath( $path );
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my @lines = `cd $dir; pdflatex "\\nonstopmode\\input{$file}"` if ($mode eq "update");
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my ($checksum) = map {$_=~/^\* The checksum should be (\d+)!/; $1;} grep ($_ =~ /^\* The checksum should be (\d+)!/,@lines) if @lines;
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if (!$checksum) {
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#One more possible error message:
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($checksum) = map {$_=~/^! Package doc Error: Checksum not passed \((\d+)<>(\d+)\)\./; $2;} grep ($_ =~ /^! Package doc Error: Checksum not passed \((\d+)<>(\d+)\)\./,@lines) if @lines;
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}
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open(IN,"<$path") or die "Cannot open DTX source: $path\n";
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@lines = ();
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while (<IN>) {
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push @lines, &{$$action{$mode}}($_,$checksum);
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}
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close(IN);
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open(OUT,">$path") or die "Cannot write to DTX target: $path\n";
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print OUT join("",@lines);
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close(OUT);
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######### Subroutines ############
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sub update {
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my $checksum=$_[1];
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$_[0]=~s/\\CheckSum\{\d*\}/\\CheckSum{$checksum}/ if $checksum;
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$_[0];
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}
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sub disable {
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$_[0]=~s/\\CheckSum\{(\d*)\}/\\iffalse\\CheckSum\{$1}\\fi/ unless $_[0]=~/\\iffalse\\CheckSum\{(\d*)\}\\fi/;
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$_[0];
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}
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sub enable {
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$_[0]=~s/\\iffalse\\CheckSum\{(\d*)\}\\fi/\\CheckSum{$1}/;
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$_[0];
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}
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__END__
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=head1 SYNOPSIS
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checksum <input filename> --update|enable|disable
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Purpose:
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Update, enable or disable the \CheckSum macro for a given .dtx source
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Example:
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checksum omd.dtx --update
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