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378cc40b |
1 | ;# $Header: getopt.pl,v 2.0 88/06/05 00:16:22 root Exp $ |
2 | |
3 | ;# Process single-character switches with switch clustering. Pass one argument |
4 | ;# which is a string containing all switches that take an argument. For each |
5 | ;# switch found, sets $opt_x (where x is the switch name) to the value of the |
6 | ;# argument, or 1 if no argument. Switches which take an argument don't care |
7 | ;# whether there is a space between the switch and the argument. |
8 | |
9 | ;# Usage: |
10 | ;# do Getopt('oDI'); # -o, -D & -I take arg. Sets opt_* as a side effect. |
11 | |
12 | sub Getopt { |
13 | local($argumentative) = @_; |
14 | local($_,$first,$rest); |
15 | |
16 | while (($_ = $ARGV[0]) =~ /^-(.)(.*)/) { |
17 | ($first,$rest) = ($1,$2); |
18 | if (index($argumentative,$first) >= $[) { |
19 | if ($rest ne '') { |
20 | shift; |
21 | } |
22 | else { |
23 | shift; |
24 | $rest = shift; |
25 | } |
26 | eval "\$opt_$first = \$rest;"; |
27 | } |
28 | else { |
29 | eval "\$opt_$first = 1;"; |
30 | if ($rest ne '') { |
31 | $ARGV[0] = "-$rest"; |
32 | } |
33 | else { |
34 | shift; |
35 | } |
36 | } |
37 | } |
38 | } |