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package WWW::Form::UrlEncoded::PP;
use strict;
use warnings;
use base qw/Exporter/;
our @EXPORT_OK = qw/parse_urlencoded parse_urlencoded_arrayref build_urlencoded build_urlencoded_utf8/;
our $DECODE = qr/%([0-9a-fA-F]{2})/;
our %DecodeMap;
our %EncodeMap;
for my $num ( 0 .. 255 ) {
my $h = sprintf "%02X", $num;
my $chr = chr $num;
$DecodeMap{ lc $h } = $chr; #%aa
$DecodeMap{ uc $h } = $chr; #%AA
$DecodeMap{ ucfirst lc $h } = $chr; #%Aa
$DecodeMap{ lcfirst uc $h } = $chr; #%aA
$EncodeMap{$chr} = '%'. uc $h;
}
$EncodeMap{" "} = '+';
sub parse_urlencoded {
my @params;
return @params unless defined $_[0];
for my $pair ( split( /[&;] ?/, $_[0], -1 ) ) {
$pair =~ y/\+/\x20/;
my ($key, $val) = split /=/, $pair, 2;
for ($key, $val) {
if ( ! defined $_ ) {
push @params, '';
next;
}
s/$DECODE/$DecodeMap{$1}/gs;
push @params, $_;
}
}
return @params;
}
sub parse_urlencoded_arrayref {
[parse_urlencoded(@_)];
}
our $NEED_UPGRADE = 0;
sub build_urlencoded {
return "" unless @_;
my $uri = '';
my $delim = '&';
if ( ref $_[0] && ref $_[0] eq 'ARRAY') {
my @args = @{$_[0]};
$delim = $_[1] if defined $_[1];
utf8::encode($delim) if $NEED_UPGRADE;
while ( @args ) {
my $k = shift @args;
my $v = shift @args;
if ( ref $v && ref $v eq 'ARRAY') {
$uri .= url_encode($k) . '='. url_encode($_) . $delim for @$v;
}
else {
$uri .= url_encode($k) . '='. url_encode($v) . $delim
}
}
}
elsif ( ref $_[0] && ref $_[0] eq 'HASH') {
$delim = $_[1] if defined $_[1];
utf8::encode($delim) if $NEED_UPGRADE;
while ( my ($k,$v) = each %{$_[0]} ) {
if ( ref $v && ref $v eq 'ARRAY') {
$uri .= url_encode($k) . '='. url_encode($_) . $delim for @$v;
}
else {
$uri .= url_encode($k) . '='. url_encode($v) . $delim
}
}
}
else {
if ( @_ > 2 && @_ % 2 ) {
$delim = pop @_;
utf8::encode($delim) if $NEED_UPGRADE;
}
while ( @_ ) {
my $k = shift @_;
my $v = shift @_;
if ( ref $v && ref $v eq 'ARRAY') {
$uri .= url_encode($k) . '='. url_encode($_) . $delim for @$v;
}
else {
$uri .= url_encode($k) . '='. url_encode($v) . $delim
}
}
}
substr($uri,-1*length($delim),length($delim),"");
$uri;
}
sub build_urlencoded_utf8 {
local $NEED_UPGRADE = 1;
my $uri = build_urlencoded(@_);
$uri;
}
sub url_encode {
return '' unless defined $_[0];
my $t = shift;
utf8::encode($t) if $NEED_UPGRADE;
{
use bytes;
$t =~ s!([^A-Za-z0-9\-\._~])!
join '',@EncodeMap{exists $EncodeMap{$1} ? ($1) : (split //,$1)}
!gsxe;
}
return $t;
}
1;
__END__
=encoding utf-8
=head1 NAME
WWW::Form::UrlEncoded::PP - pure-perl parser and builder for application/x-www-form-urlencoded
=head1 SYNOPSIS
use WWW::Form::UrlEncoded::PP qw/parse_urlencoded build_urlencoded/;
my $query_string = "foo=bar&baz=param";
my @params = parse_urlencoded($query_string);
# ('foo','bar','baz','param')
my $query_string = build_urlencoded('foo','bar','baz','param');
# "foo=bar&baz=param";
=head1 DESCRIPTION
WWW::Form::UrlEncoded::PP provides pure-perl application/x-www-form-urlencoded parser and builder.
see L<WWW::Form::UrlEncoded>'s document.
=head1 LICENSE
Copyright (C) Masahiro Nagano.
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=head1 AUTHOR
Masahiro Nagano E<lt>kazeburo@gmail.comE<gt>
=cut
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