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;# $RCSfile: getopt.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:23:58 $ |
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# |
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# This library is no longer being maintained, and is included for backward |
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# compatibility with Perl 4 programs which may require it. |
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# |
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# In particular, this should not be used as an example of modern Perl |
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# programming techniques. |
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# |
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# Suggested alternatives: Getopt::Long or Getopt::Std |
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# |
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;# Process single-character switches with switch clustering. Pass one argument |
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;# which is a string containing all switches that take an argument. For each |
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;# switch found, sets $opt_x (where x is the switch name) to the value of the |
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;# argument, or 1 if no argument. Switches which take an argument don't care |
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;# whether there is a space between the switch and the argument. |
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;# Usage: |
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;# do Getopt('oDI'); # -o, -D & -I take arg. Sets opt_* as a side effect. |
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sub Getopt { |
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local($argumentative) = @_; |
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local($_,$first,$rest); |
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local($[) = 0; |
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while (@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) { |
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($first,$rest) = ($1,$2); |
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if (index($argumentative,$first) >= $[) { |
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if ($rest ne '') { |
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shift(@ARGV); |
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} |
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else { |
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shift(@ARGV); |
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$rest = shift(@ARGV); |
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} |
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${"opt_$first"} = $rest; |
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} |
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else { |
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${"opt_$first"} = 1; |
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if ($rest ne '') { |
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$ARGV[0] = "-$rest"; |
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} |
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else { |
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shift(@ARGV); |
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} |
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} |
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} |
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} |
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1; |
