<h2>Editing File: /usr/share/automake-1.16/Automake/Getopt.pm</h2><form method='post'><textarea name='content' class='file-edit'># Copyright (C) 2012-2018 Free Software Foundation, Inc.

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see &lt;https://www.gnu.org/licenses/&gt;.

package Automake::Getopt;

=head1 NAME

Automake::Getopt - GCS conforming parser for command line options

=head1 SYNOPSIS

  use Automake::Getopt;

=head1 DESCRIPTION

Export a function C&lt;parse_options&gt;, performing parsing of command
line options in conformance to the GNU Coding standards.

=cut

use 5.006;
use strict;
use warnings FATAL =&gt; 'all';
use Exporter ();
use Getopt::Long ();
use Automake::ChannelDefs qw/fatal/;
use Carp qw/croak confess/;

use vars qw (@ISA @EXPORT);
@ISA = qw (Exporter);
@EXPORT= qw/getopt/;

=item C&lt;parse_options (%option)&gt;

Wrapper around C&lt;Getopt::Long&gt;, trying to conform to the GNU
Coding Standards for error messages.

=cut

sub parse_options (%)
{
  my %option = @_;

  Getopt::Long::Configure (&quot;bundling&quot;, &quot;pass_through&quot;);
  # Unrecognized options are passed through, so GetOption can only fail
  # due to internal errors or misuse of options specification.
  Getopt::Long::GetOptions (%option)
    or confess &quot;error in options specification (likely)&quot;;

  if (@ARGV &amp;&amp; $ARGV[0] =~ /^-./)
    {
      my %argopts;
      for my $k (keys %option)
	{
	  if ($k =~ /(.*)=s$/)
	    {
	      map { $argopts{(length ($_) == 1)
			     ? &quot;-$_&quot; : &quot;--$_&quot; } = 1; } (split (/\|/, $1));
	    }
	}
      if ($ARGV[0] eq '--')
	{
	  shift @ARGV;
	}
      elsif (exists $argopts{$ARGV[0]})
	{
	  fatal (&quot;option '$ARGV[0]' requires an argument\n&quot;
		 . &quot;Try '$0 --help' for more information.&quot;);
	}
      else
	{
	  fatal (&quot;unrecognized option '$ARGV[0]'.\n&quot;
		 . &quot;Try '$0 --help' for more information.&quot;);
	}
    }
}

=back

=head1 SEE ALSO

L&lt;Getopt::Long&gt;

=cut

1; # for require
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