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use strict; |
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use warnings; |
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package Data::Hive::PathPacker::Flexible 1.014; |
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# ABSTRACT: a path packer that can be customized with callbacks |
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use parent 'Data::Hive::PathPacker'; |
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#pod =head1 DESCRIPTION |
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#pod |
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#pod This class provides the Data::Hive::PathPacker interface, and the way in which |
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#pod paths are packed and unpacked can be defined by callbacks set during |
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#pod initialization. |
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#pod |
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#pod =method new |
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#pod |
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#pod my $path_packer = Data::Hive::PathPacker::Flexible->new( \%arg ); |
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#pod |
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#pod The valid arguments are: |
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#pod |
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#pod =begin :list |
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#pod |
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#pod = escape and unescape |
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#pod |
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#pod These coderefs are used to escape and path parts so that they can be split and |
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#pod joined without ambiguity. The callbacks will be called like this: |
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#pod |
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#pod my $result = do { |
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#pod local $_ = $path_part; |
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#pod $store->$callback( $path_part ); |
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#pod } |
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#pod |
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#pod The default escape routine uses URI-like encoding on non-word characters. |
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#pod |
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#pod = join, split, and separator |
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#pod |
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#pod The C coderef is used to join pre-escaped path parts. C is used |
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#pod to split up a complete name before unescaping the parts. |
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#pod |
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#pod By default, they will use a simple perl join and split on the character given |
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#pod in the C option. |
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#pod |
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#pod =end :list |
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#pod |
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#pod =cut |
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sub new { |
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my ($class, $arg) = @_; |
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$arg ||= {}; |
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my $guts = { |
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separator => $arg->{separator} || '.', |
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escape => $arg->{escape} || sub { |
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my ($self, $str) = @_; |
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$str =~ s/([^a-z0-9_])/sprintf("%%%x", ord($1))/gie; |
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return $str; |
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}, |
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unescape => $arg->{unescape} || sub { |
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my ($self, $str) = @_; |
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$str =~ s/%([0-9a-f]{2})/chr(hex($1))/ge; |
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return $str; |
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}, |
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join => $arg->{join} || sub { join $_[0]{separator}, @{$_[1]} }, |
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66
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split => $arg->{split} || sub { split /\Q$_[0]{separator}/, $_[1] }, |
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1
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}; |
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return bless $guts => $class; |
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} |
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sub pack_path { |
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my ($self, $path) = @_; |
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75
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11
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my $escape = $self->{escape}; |
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my $join = $self->{join}; |
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return $self->$join([ map {; $self->$escape($_) } @$path ]); |
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34
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79
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} |
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81
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sub unpack_path { |
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15
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my ($self, $str) = @_; |
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84
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15
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my $split = $self->{split}; |
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my $unescape = $self->{unescape}; |
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return [ map {; $self->$unescape($_) } $self->$split($str) ]; |
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88
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} |
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90
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1; |
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__END__ |