| 1 | ;# $RCSfile: getopt.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:23:58 $ |
| 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 | ;# Process single-character switches with switch clustering. Pass one argument |
| 12 | ;# which is a string containing all switches that take an argument. For each |
| 13 | ;# switch found, sets $opt_x (where x is the switch name) to the value of the |
| 14 | ;# argument, or 1 if no argument. Switches which take an argument don't care |
| 15 | ;# whether there is a space between the switch and the argument. |
| 16 | |
| 17 | ;# Usage: |
| 18 | ;# do Getopt('oDI'); # -o, -D & -I take arg. Sets opt_* as a side effect. |
| 19 | |
| 20 | sub Getopt { |
| 21 | local($argumentative) = @_; |
| 22 | local($_,$first,$rest); |
| 23 | local($[) = 0; |
| 24 | |
| 25 | while (@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) { |
| 26 | ($first,$rest) = ($1,$2); |
| 27 | if (index($argumentative,$first) >= $[) { |
| 28 | if ($rest ne '') { |
| 29 | shift(@ARGV); |
| 30 | } |
| 31 | else { |
| 32 | shift(@ARGV); |
| 33 | $rest = shift(@ARGV); |
| 34 | } |
| 35 | ${"opt_$first"} = $rest; |
| 36 | } |
| 37 | else { |
| 38 | ${"opt_$first"} = 1; |
| 39 | if ($rest ne '') { |
| 40 | $ARGV[0] = "-$rest"; |
| 41 | } |
| 42 | else { |
| 43 | shift(@ARGV); |
| 44 | } |
| 45 | } |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | 1; |