;# getopts.pl - a better getopt.pl # # This library is no longer being maintained, and is included for backward # compatibility with Perl 4 programs which may require it. # # In particular, this should not be used as an example of modern Perl # programming techniques. # # Suggested alternatives: Getopt::Long or Getopt::Std # ;# Usage: ;# do Getopts('a:bc'); # -a takes arg. -b & -c not. Sets opt_* as a ;# # side effect. sub Getopts { local($argumentative) = @_; local(@args,$_,$first,$rest); local($errs) = 0; local($[) = 0; @args = split( / */, $argumentative ); while(@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) { ($first,$rest) = ($1,$2); $pos = index($argumentative,$first); if($pos >= $[) { if($args[$pos+1] eq ':') { shift(@ARGV); if($rest eq '') { ++$errs unless(@ARGV); $rest = shift(@ARGV); } eval " push(\@opt_$first, \$rest); if (!defined \$opt_$first or \$opt_$first eq '') { \$opt_$first = \$rest; } else { \$opt_$first .= ' ' . \$rest; } "; } else { eval "\$opt_$first = 1"; if($rest eq '') { shift(@ARGV); } else { $ARGV[0] = "-$rest"; } } } else { print STDERR "Unknown option: $first\n"; ++$errs; if($rest ne '') { $ARGV[0] = "-$rest"; } else { shift(@ARGV); } } } $errs == 0; } 1;