19 lines
390 B
Perl
19 lines
390 B
Perl
package Nix::Utils;
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$urlRE = "(?: [a-zA-Z][a-zA-Z0-9\+\-\.]*\:[a-zA-Z0-9\%\/\?\:\@\&\=\+\$\,\-\_\.\!\~\*]+ )";
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sub checkURL {
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my ($url) = @_;
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die "invalid URL ‘$url’\n" unless $url =~ /^ $urlRE $ /x;
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}
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sub uniq {
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my %seen;
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my @res;
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foreach my $name (@_) {
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next if $seen{$name};
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$seen{$name} = 1;
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push @res, $name;
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}
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return @res;
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}
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