| 1 | ;# getopts.pl - a better getopt.pl |
| 2 | # |
| 3 | # This library is no longer being maintained, and is included for backward |
| 4 | # compatibility with Perl 4 programs which may require it. |
| 5 | # |
| 6 | # In particular, this should not be used as an example of modern Perl |
| 7 | # programming techniques. |
| 8 | # |
| 9 | # Suggested alternatives: Getopt::Long or Getopt::Std |
| 10 | # |
| 11 | ;# Usage: |
| 12 | ;# do Getopts('a:bc'); # -a takes arg. -b & -c not. Sets opt_* as a |
| 13 | ;# # side effect. |
| 14 | |
| 15 | sub Getopts { |
| 16 | local($argumentative) = @_; |
| 17 | local(@args,$_,$first,$rest); |
| 18 | local($errs) = 0; |
| 19 | local($[) = 0; |
| 20 | |
| 21 | @args = split( / */, $argumentative ); |
| 22 | while(@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) { |
| 23 | ($first,$rest) = ($1,$2); |
| 24 | $pos = index($argumentative,$first); |
| 25 | if($pos >= $[) { |
| 26 | if($args[$pos+1] eq ':') { |
| 27 | shift(@ARGV); |
| 28 | if($rest eq '') { |
| 29 | ++$errs unless(@ARGV); |
| 30 | $rest = shift(@ARGV); |
| 31 | } |
| 32 | eval " |
| 33 | push(\@opt_$first, \$rest); |
| 34 | if(\$opt_$first eq '') { |
| 35 | \$opt_$first = \$rest; |
| 36 | } |
| 37 | else { |
| 38 | \$opt_$first .= ' ' . \$rest; |
| 39 | } |
| 40 | "; |
| 41 | } |
| 42 | else { |
| 43 | eval "\$opt_$first = 1"; |
| 44 | if($rest eq '') { |
| 45 | shift(@ARGV); |
| 46 | } |
| 47 | else { |
| 48 | $ARGV[0] = "-$rest"; |
| 49 | } |
| 50 | } |
| 51 | } |
| 52 | else { |
| 53 | print STDERR "Unknown option: $first\n"; |
| 54 | ++$errs; |
| 55 | if($rest ne '') { |
| 56 | $ARGV[0] = "-$rest"; |
| 57 | } |
| 58 | else { |
| 59 | shift(@ARGV); |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | $errs == 0; |
| 64 | } |
| 65 | |
| 66 | 1; |