;# $RCSfile: getopt.pl,v $$Revision$$Date$
#
# This library is no longer being maintained, and is included for backward
# compatibility with Perl 4 programs which may require it.
# This legacy library is deprecated and will be removed in a future
# release of perl.
#
# In particular, this should not be used as an example of modern Perl
# programming techniques.
#
# Suggested alternatives: Getopt::Long or Getopt::Std

;# Process single-character switches with switch clustering.  Pass one argument
;# which is a string containing all switches that take an argument.  For each
;# switch found, sets $opt_x (where x is the switch name) to the value of the
;# argument, or 1 if no argument.  Switches which take an argument don't care
;# whether there is a space between the switch and the argument.

;# Usage:
;#	do Getopt('oDI');  # -o, -D & -I take arg.  Sets opt_* as a side effect.

sub Getopt {
	local($argumentative) = @_;
	local($_,$first,$rest);

	while (@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) {
		($first,$rest) = ($1,$2);
		if (index($argumentative,$first) >= 0) {
			if ($rest ne '') {
				shift(@ARGV);
			}
			else {
				shift(@ARGV);
				$rest = shift(@ARGV);
			}
			${"opt_$first"} = $rest;
		}
		else {
			${"opt_$first"} = 1;
			if ($rest ne '') {
				$ARGV[0] = "-$rest";
			}
			else {
				shift(@ARGV);
			}
		}
	}
}

1;
