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package Path::Naive; |
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our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY |
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our $DATE = '2020-02-07'; # DATE |
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our $DIST = 'Path-Naive'; # DIST |
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our $VERSION = '0.042'; # VERSION |
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58275
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use strict; |
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use warnings; |
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use Exporter; |
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our @ISA = qw(Exporter); |
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our @EXPORT_OK = qw( |
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abs_path |
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concat_path |
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concat_and_normalize_path |
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normalize_path |
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is_abs_path |
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is_rel_path |
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split_path |
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); |
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sub abs_path { |
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2271
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my ($path, $base) = @_; |
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100
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die "Please specify path (first arg)" unless defined $path && length $path; |
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die "Please specify base (second arg)" unless defined $base && length $base; |
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100
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die "base must be absolute" unless is_abs_path($base); |
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concat_and_normalize_path($base, $path); |
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} |
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sub is_abs_path { |
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my $path = shift; |
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die "Please specify path" unless defined $path && length $path; |
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$path =~ m!\A/! ? 1:0; |
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} |
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sub is_rel_path { |
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3126
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my $path = shift; |
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100
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100
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die "Please specify path" unless defined $path && length $path; |
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2
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100
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$path =~ m!\A/! ? 0:1; |
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} |
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sub normalize_path { |
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1
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2898
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my $path = shift; |
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my @elems0 = split_path($path); |
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my $is_abs = $path =~ m!\A/!; |
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my @elems; |
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while (@elems0) { |
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my $elem = shift @elems0; |
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100
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next if $elem eq '.' && (@elems || @elems0 || $is_abs); |
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100
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100
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do { pop @elems; next } if $elem eq '..' && |
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100
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(@elems>1 && $elems[-1] ne '..' || |
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@elems==1 && $elems[-1] ne '..' && $elems[-1] ne '.' && @elems0 || |
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$is_abs); |
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push @elems, $elem; |
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} |
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100
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($is_abs ? "/" : "") . join("/", @elems); |
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} |
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61
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sub split_path { |
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54
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1
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3285
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my $path = shift; |
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100
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100
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die "Please specify path" unless defined $path && length $path; |
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339
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grep {length} split qr!/+!, $path; |
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261
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65
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} |
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67
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sub concat_path { |
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100
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1
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3163
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die "Please specify at least two paths" unless @_ > 1; |
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25
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my $i = 0; |
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my $res = $_[0]; |
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for (@_) { |
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50
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33
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111
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die "Please specify path (#$i)" unless defined && length; |
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100
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next unless $i++; |
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100
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if (m!\A/!) { |
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6
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9
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$res = $_; |
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} else { |
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100
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$res .= ($res =~ m!/\z! ? "" : "/") . $_; |
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} |
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} |
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58
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$res; |
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} |
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sub concat_and_normalize_path { |
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16
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16
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1
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2886
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normalize_path(concat_path(@_)); |
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} |
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87
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1; |
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# ABSTRACT: Yet another abstract, Unix-like path manipulation routines |
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90
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__END__ |