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package URI::Split;
use strict;
use vars qw(@ISA @EXPORT_OK);
require Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(uri_split uri_join);
use URI::Escape ();
sub uri_split {
return $_[0] =~ m,(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?,;
}
sub uri_join {
my($scheme, $auth, $path, $query, $frag) = @_;
my $uri = defined($scheme) ? "$scheme:" : "";
$path = "" unless defined $path;
if (defined $auth) {
$auth =~ s,([/?\#]), URI::Escape::escape_char($1),eg;
$uri .= "//$auth";
$path = "/$path" if length($path) && $path !~ m,^/,;
}
elsif ($path =~ m,^//,) {
$uri .= "//"; # XXX force empty auth
}
unless (length $uri) {
$path =~ s,(:), URI::Escape::escape_char($1),e while $path =~ m,^[^:/?\#]+:,;
}
$path =~ s,([?\#]), URI::Escape::escape_char($1),eg;
$uri .= $path;
if (defined $query) {
$query =~ s,(\#), URI::Escape::escape_char($1),eg;
$uri .= "?$query";
}
$uri .= "#$frag" if defined $frag;
$uri;
}
1;
__END__
=head1 NAME
URI::Split - Parse and compose URI strings
=head1 SYNOPSIS
use URI::Split qw(uri_split uri_join);
($scheme, $auth, $path, $query, $frag) = uri_split($uri);
$uri = uri_join($scheme, $auth, $path, $query, $frag);
=head1 DESCRIPTION
Provides functions to parse and compose URI
strings. The following functions are provided:
=over
=item ($scheme, $auth, $path, $query, $frag) = uri_split($uri)
Breaks up a URI string into its component
parts. An C<undef> value is returned for those parts that are not
present. The $path part is always present (but can be the empty
string) and is thus never returned as C<undef>.
No sensible value is returned if this function is called in a scalar
context.
=item $uri = uri_join($scheme, $auth, $path, $query, $frag)
Puts together a URI string from its parts.
Missing parts are signaled by passing C<undef> for the corresponding
argument.
Minimal escaping is applied to parts that contain reserved chars
that would confuse a parser. For instance, any occurrence of '?' or '#'
in $path is always escaped, as it would otherwise be parsed back
as a query or fragment.
=back
=head1 SEE ALSO
L<URI>, L<URI::Escape>
=head1 COPYRIGHT
Copyright 2003, Gisle Aas
This library is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
=cut
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