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Edit File: ppmquant
#!/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 nothing but a compatibility interface for Pnmquant. # An old program coded to call Ppmquant will continue working because # this interface exists. All new (or newly modified) programs should # call Pnmquant or Pnmremap instead. # # In days past, Pnmquant and Pnmremap did not exist. Ppmquant did # the job of both Pnmremap and Pnmquant, but only on PPM images. ############################################################################## use strict; sub doVersionHack($) { my ($argvR) = @_; my $arg1 = $argvR->[0]; if (defined($arg1) && (($arg1 eq "--version") || ($arg1 eq "-version"))) { my $termStatus = system('pnmquant', '--version'); exit($termStatus == 0 ? 0 : 1); } } doVersionHack(\@ARGV); use Getopt::Long; my @ppmquantArgv = @ARGV; Getopt::Long::Configure('pass_through'); my $validOptions = GetOptions('mapfile' => \my $mapfileopt); my $mapfileOptionPresent = ($validOptions && $mapfileopt); if ($mapfileOptionPresent) { system('pnmremap', @ppmquantArgv); } else { system('pnmquant', @ppmquantArgv); }