diff options
author | Jason Downs <downsj@cvs.openbsd.org> | 1996-08-19 10:13:38 +0000 |
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committer | Jason Downs <downsj@cvs.openbsd.org> | 1996-08-19 10:13:38 +0000 |
commit | 14856225739aa48b6c9cf4c17925362b2d95cea3 (patch) | |
tree | dfd38f1b654fb5bbdfc38887c1a829b658e71530 /gnu/usr.bin/perl/lib/Getopt/Std.pm | |
parent | 77469082517e44fe6ca347d9e8dc7dffd1583637 (diff) |
Import of Perl 5.003 into the tree. Makefile.bsd-wrapper and
config.sh.OpenBSD are the only local changes.
Diffstat (limited to 'gnu/usr.bin/perl/lib/Getopt/Std.pm')
-rw-r--r-- | gnu/usr.bin/perl/lib/Getopt/Std.pm | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/gnu/usr.bin/perl/lib/Getopt/Std.pm b/gnu/usr.bin/perl/lib/Getopt/Std.pm new file mode 100644 index 00000000000..4117ca7f8b5 --- /dev/null +++ b/gnu/usr.bin/perl/lib/Getopt/Std.pm @@ -0,0 +1,128 @@ +package Getopt::Std; +require 5.000; +require Exporter; + +=head1 NAME + +getopt - Process single-character switches with switch clustering + +getopts - Process single-character switches with switch clustering + +=head1 SYNOPSIS + + use Getopt::Std; + getopt('oDI'); # -o, -D & -I take arg. Sets opt_* as a side effect. + getopts('oif:'); # -o & -i are boolean flags, -f takes an argument + # Sets opt_* as a side effect. + +=head1 DESCRIPTION + +The getopt() functions processes single-character switches with switch +clustering. Pass one argument which is a string containing all switches +that take an argument. For each switch found, sets $opt_x (where x is the +switch name) to the value of the argument, or 1 if no argument. Switches +which take an argument don't care whether there is a space between the +switch and the argument. + +=cut + +@ISA = qw(Exporter); +@EXPORT = qw(getopt getopts); + +# $RCSfile: getopt.pl,v $$Revision: 4.1 $$Date: 92/08/07 18:23:58 $ + +# Process single-character switches with switch clustering. Pass one argument +# which is a string containing all switches that take an argument. For each +# switch found, sets $opt_x (where x is the switch name) to the value of the +# argument, or 1 if no argument. Switches which take an argument don't care +# whether there is a space between the switch and the argument. + +# Usage: +# getopt('oDI'); # -o, -D & -I take arg. Sets opt_* as a side effect. + +sub getopt { + local($argumentative) = @_; + local($_,$first,$rest); + local $Exporter::ExportLevel; + + while (@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) { + ($first,$rest) = ($1,$2); + if (index($argumentative,$first) >= 0) { + if ($rest ne '') { + shift(@ARGV); + } + else { + shift(@ARGV); + $rest = shift(@ARGV); + } + eval "\$opt_$first = \$rest;"; + push( @EXPORT, "\$opt_$first" ); + } + else { + eval "\$opt_$first = 1;"; + push( @EXPORT, "\$opt_$first" ); + if ($rest ne '') { + $ARGV[0] = "-$rest"; + } + else { + shift(@ARGV); + } + } + } + $Exporter::ExportLevel++; + import Getopt::Std; +} + +# Usage: +# getopts('a:bc'); # -a takes arg. -b & -c not. Sets opt_* as a +# # side effect. + +sub getopts { + local($argumentative) = @_; + local(@args,$_,$first,$rest); + local($errs) = 0; + local $Exporter::ExportLevel; + + @args = split( / */, $argumentative ); + while(@ARGV && ($_ = $ARGV[0]) =~ /^-(.)(.*)/) { + ($first,$rest) = ($1,$2); + $pos = index($argumentative,$first); + if($pos >= 0) { + if(defined($args[$pos+1]) and ($args[$pos+1] eq ':')) { + shift(@ARGV); + if($rest eq '') { + ++$errs unless @ARGV; + $rest = shift(@ARGV); + } + eval "\$opt_$first = \$rest;"; + push( @EXPORT, "\$opt_$first" ); + } + else { + eval "\$opt_$first = 1"; + push( @EXPORT, "\$opt_$first" ); + if($rest eq '') { + shift(@ARGV); + } + else { + $ARGV[0] = "-$rest"; + } + } + } + else { + print STDERR "Unknown option: $first\n"; + ++$errs; + if($rest ne '') { + $ARGV[0] = "-$rest"; + } + else { + shift(@ARGV); + } + } + } + $Exporter::ExportLevel++; + import Getopt::Std; + $errs == 0; +} + +1; + |