#!/bin/sh

: ${fvwm_libdir=../../libs}

infile=${fvwm_libdir}/Module.h
outfile=`dirname $0`/Constants.pm

( \
	echo "# Autogenerated from the fvwm sources."; \
	echo ""; \
	echo "package FVWM::Constants;"; \
	echo "use Exporter;"; \
	echo "use Config;"; \
	echo "@ISA = qw(Exporter);"; \
	echo ""; \
) \
	>$outfile

( \
	grep "#define M_" $infile; \
	grep "#define MX_" $infile | sed 's/ | /|/'; \
	grep "#define MAX_MSG_MASK " $infile; \
	grep "#define MAX_XMSG_MASK " $infile; \
	grep "#define FvwmPacketHeaderSize " $infile | sed 's/FvwmPacketHeaderSize/HEADER_SIZE/'; \
	grep "#define START_FLAG " $infile; \
	grep "#define ModuleFinishedStartupResponse " $infile | tr ' ' : | sed 's/:ModuleFinishedStartupResponse:\+/ RESPONSE_READY /'; \
	grep "#define ModuleUnlockResponse " $infile | tr ' ' : | sed 's/:ModuleUnlockResponse:\+/ RESPONSE_UNLOCK /'; \
) \
	| awk '{ print "use constant " $2 " => " $3 ";" }' \
	| tr : ' ' \
	>>$outfile

( \
	echo "use constant ON_EXIT => '1e20';"; \
	echo "use constant INTSIZE => \$Config{longsize};" \
) \
	>>$outfile

( \
	grep constant $outfile | cut -d" " -f3 | awk '{ print "  " $1 }'; \
) \
	>"$outfile.tmp"

( \
	echo '@EXPORT = qw('; \
	cat "$outfile.tmp"; \
	echo ');' \
) \
	>>$outfile

( \
	echo "
1;

__END__

=head1 NAME

FVWM::Constants - exports fvwm specific constants

=head1 DESCRIPTION

This class is used to load fvwm constants into your perl script or class.
Note, if you use I<FVWM::Module> the constants are automatically exported.
So you usually do not need to include this class.

=head1 USAGE

  use FVWM::Constants;

=head1 SEE ALSO

For more information, see L<FVWM::Module>.

=head1 EXPORTED CONSTANTS
"; \
	cat "$outfile.tmp"; \
) \
	>>$outfile

rm "$outfile.tmp"