-package PLP::Tie::Headers;
-
-use strict;
-use Carp;
-
-=head1 PLP::Tie::Headers
-
-Makes a hash case insensitive, and sets some headers. <_> equals <->, so C<$foo{CONTENT_TYPE}> is
-the same as C<$foo{'Content-Type'}>.
-
- tie %somehash, 'PLP::Tie::Headers';
-
-This module is part of the PLP internals and probably not of much use to others.
-
-=cut
-
-sub _lc ($) {
- local $_ = $_[0];
- tr/_/-/;
- return lc;
-}
-
-sub TIEHASH {
- return bless [ # Defaults
- {
- 'Content-Type' => 'text/html',
- 'X-PLP-Version' => $PLP::VERSION,
- },
- {
- 'content-type' => 'Content-Type',
- 'x-plp-version' => 'X-PLP-Version',
- }
- ], $_[0];
-}
-
-sub FETCH {
- my ($self, $key) = @_;
- return $self->[0]->{ $self->[1]->{_lc $key} };
-}
-
-sub STORE {
- my ($self, $key, $value) = @_;
- if ($PLP::sentheaders) {
- my @caller = caller;
- die "Can't set headers after sending them at " .
- "$caller[1] line $caller[2].\n(Output started at " .
- "$PLP::sentheaders->[0] line $PLP::sentheaders->[1].)\n"
- }
- if (defined $self->[1]->{_lc $key}){
- $key = $self->[1]->{_lc $key};
- } else {
- $self->[1]->{lc $key} = $key;
- }
- return ($self->[0]->{$key} = $value);
-}
-
-sub DELETE {
- my ($self, $key) = @_;
- delete $self->[0]->{$key};
- return delete $self->[1]->{_lc $key};
-}
-
-sub CLEAR {
- my $self = $_[0];
- return (@$self = ());
-}
-
-sub EXISTS {
- my ($self, $key) = @_;
- return exists $self->[1]->{_lc $key};
-}
-
-sub FIRSTKEY {
- my $self = $_[0];
- keys %{$self->[0]};
- return each %{ $self->[0] }; # Key only, Tie::Hash doc is wrong.
-}
-
-sub NEXTKEY {
- return each %{ $_[0]->[0] };
-}
-
-1;
-