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1 | ;# $RCSfile: getopt.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:23:58 $ |
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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,$rest); |
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15 | local($[) = 0; |
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16 | |
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17 | while (@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) { |
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18 | ($first,$rest) = ($1,$2); |
19 | if (index($argumentative,$first) >= $[) { |
20 | if ($rest ne '') { |
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21 | shift(@ARGV); |
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22 | } |
23 | else { |
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24 | shift(@ARGV); |
25 | $rest = shift(@ARGV); |
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26 | } |
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27 | ${"opt_$first"} = $rest; |
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28 | } |
29 | else { |
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30 | ${"opt_$first"} = 1; |
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31 | if ($rest ne '') { |
32 | $ARGV[0] = "-$rest"; |
33 | } |
34 | else { |
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35 | shift(@ARGV); |
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36 | } |
37 | } |
38 | } |
39 | } |
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40 | |
41 | 1; |