<h2>Editing File: /usr/share/perl5/URI/_query.pm</h2><form method='post'><textarea name='content' class='file-edit'>package URI::_query;

use strict;
use warnings;

use URI ();
use URI::Escape qw(uri_unescape);

our $VERSION = '1.73';
$VERSION = eval $VERSION;

sub query
{
    my $self = shift;
    $$self =~ m,^([^?\#]*)(?:\?([^\#]*))?(.*)$,s or die;

    if (@_) {
	my $q = shift;
	$$self = $1;
	if (defined $q) {
	    $q =~ s/([^$URI::uric])/ URI::Escape::escape_char($1)/ego;
	    utf8::downgrade($q);
	    $$self .= &quot;?$q&quot;;
	}
	$$self .= $3;
    }
    $2;
}

# Handle ...?foo=bar&amp;bar=foo type of query
sub query_form {
    my $self = shift;
    my $old = $self-&gt;query;
    if (@_) {
        # Try to set query string
        my $delim;
        my $r = $_[0];
        if (ref($r) eq &quot;ARRAY&quot;) {
            $delim = $_[1];
            @_ = @$r;
        }
        elsif (ref($r) eq &quot;HASH&quot;) {
            $delim = $_[1];
            @_ = map { $_ =&gt; $r-&gt;{$_} } sort keys %$r;
        }
        $delim = pop if @_ % 2;

        my @query;
        while (my($key,$vals) = splice(@_, 0, 2)) {
            $key = '' unless defined $key;
	    $key =~ s/([;\/?:@&amp;=+,\$\[\]%])/ URI::Escape::escape_char($1)/eg;
	    $key =~ s/ /+/g;
	    $vals = [ref($vals) eq &quot;ARRAY&quot; ? @$vals : $vals];
            for my $val (@$vals) {
                $val = '' unless defined $val;
		$val =~ s/([;\/?:@&amp;=+,\$\[\]%])/ URI::Escape::escape_char($1)/eg;
                $val =~ s/ /+/g;
                push(@query, &quot;$key=$val&quot;);
            }
        }
        if (@query) {
            unless ($delim) {
                $delim = $1 if $old &amp;&amp; $old =~ /([&amp;;])/;
                $delim ||= $URI::DEFAULT_QUERY_FORM_DELIMITER || &quot;&amp;&quot;;
            }
            $self-&gt;query(join($delim, @query));
        }
        else {
            $self-&gt;query(undef);
        }
    }
    return if !defined($old) || !length($old) || !defined(wantarray);
    return unless $old =~ /=/; # not a form
    map { s/\+/ /g; uri_unescape($_) }
         map { /=/ ? split(/=/, $_, 2) : ($_ =&gt; '')} split(/[&amp;;]/, $old);
}

# Handle ...?dog+bones type of query
sub query_keywords
{
    my $self = shift;
    my $old = $self-&gt;query;
    if (@_) {
        # Try to set query string
	my @copy = @_;
	@copy = @{$copy[0]} if @copy == 1 &amp;&amp; ref($copy[0]) eq &quot;ARRAY&quot;;
	for (@copy) { s/([;\/?:@&amp;=+,\$\[\]%])/ URI::Escape::escape_char($1)/eg; }
	$self-&gt;query(@copy ? join('+', @copy) : undef);
    }
    return if !defined($old) || !defined(wantarray);
    return if $old =~ /=/;  # not keywords, but a form
    map { uri_unescape($_) } split(/\+/, $old, -1);
}

# Some URI::URL compatibility stuff
sub equery { goto &amp;query }

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