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#!/bin/sh
##############################################################################
# This is essentially a Perl program. We exec the Perl interpreter specifying
# this same file as the Perl program and use the -x option to cause the Perl
# interpreter to skip down to the Perl code. The reason we do this instead of
# just making /usr/bin/perl the script interpreter (instead of /bin/sh) is
# that the user may have multiple Perl interpreters and the one he wants to
# use is properly located in the PATH. The user's choice of Perl interpreter
# may be crucial, such as when the user also has a PERL5LIB environment
# variable and it selects modules that work with only a certain main
# interpreter program.
#
# An alternative some people use is to have /usr/bin/env as the script
# interpreter. We don't do that because we think the existence and
# compatibility of /bin/sh is more reliable.
#
# Note that we aren't concerned about efficiency because the user who needs
# high efficiency can use directly the programs that this program invokes.
#
##############################################################################
exec perl -w -x -S -- "$0" "$@"
#! /usr/bin/perl
#============================================================================
# This is a compatibility interface to Pbmtoxbm.
#
# It exists so existing programs and procedures that rely on Pbmtox10bm
# syntax continue to work. You should not make new use of Pbmtox10bm and
# if you modify an old use, you should upgrade it to use Pbmtoxbm.
#
# Pbmtoxbm with the -x10 option is backward compatible with Pbmtox10bm.
#============================================================================
use strict;
use File::Basename;
use Cwd 'abs_path';
use IO::Handle;
sub pm_message($) {
STDERR->print("pbmtox10bm: $_[0]\n");
}
sub doVersionHack($) {
my ($argvR) = @_;
my $arg1 = $argvR->[0];
if (defined($arg1) && (($arg1 eq "--version") || ($arg1 eq "-version"))) {
my $termStatus = system('pbmtoxbm', '--version');
exit($termStatus == 0 ? 0 : 1);
}
}
doVersionHack(\@ARGV);
my $infile;
foreach (@ARGV) {
if (/^-/) {
# It's an option. But Pbmtox10bm didn't have any options.
pm_message("Invalid option '$_'");
exit(10);
} else {
# It's a parameter
if (defined($infile)) {
pm_message("You may specify at most one non-option parameter.");
exit(10);
} else {
$infile = $_;
}
}
}
my $infileParm = defined($infile) ? $infile : "-";
# We want to get Pbmtoxbm from the same directory we came from if
# it's there. Frequently, the directory containing Netpbm programs is
# not in the PATH and we were invoked by absolute path.
my $my_directory = abs_path(dirname($0));
$ENV{"PATH"} = $my_directory . ":" . $ENV{"PATH"};
exec('pbmtoxbm', '-x10', $infileParm);
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