package Travel::Routing::DE::EFA; use strict; use warnings; use 5.010; no if $] >= 5.018, warnings => "experimental::smartmatch"; use Carp qw(cluck); use Encode qw(decode encode); use Travel::Routing::DE::EFA::Route; use LWP::UserAgent; use XML::LibXML; use Exception::Class ( 'Travel::Routing::DE::EFA::Exception', 'Travel::Routing::DE::EFA::Exception::Setup' => { isa => 'Travel::Routing::DE::EFA::Exception', description => 'invalid argument on setup', fields => [ 'option', 'have', 'want' ], }, 'Travel::Routing::DE::EFA::Exception::Net' => { isa => 'Travel::Routing::DE::EFA::Exception', description => 'could not submit POST request', fields => 'http_response', }, 'Travel::Routing::DE::EFA::Exception::NoData' => { isa => 'Travel::Routing::DE::EFA::Exception', description => 'backend returned no parsable route', }, 'Travel::Routing::DE::EFA::Exception::Ambiguous' => { isa => 'Travel::Routing::DE::EFA::Exception', description => 'ambiguous input', fields => [ 'post_key', 'possibilities' ], }, 'Travel::Routing::DE::EFA::Exception::Other' => { isa => 'Travel::Routing::DE::EFA::Exception', description => 'EFA backend returned an error', fields => ['message'], }, ); our $VERSION = '2.05'; sub set_time { my ( $self, %conf ) = @_; my $time; if ( $conf{departure_time} ) { $self->{post}->{itdTripDateTimeDepArr} = 'dep'; $time = $conf{departure_time}; } elsif ( $conf{arrival_time} ) { $self->{post}->{itdTripDateTimeDepArr} = 'arr'; $time = $conf{arrival_time}; } else { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'time', error => 'Specify either departure_time or arrival_time' ); } if ( $time !~ / ^ [0-2]? \d : [0-5]? \d $ /x ) { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'time', have => $time, want => 'HH:MM', ); } @{ $self->{post} }{ 'itdTimeHour', 'itdTimeMinute' } = split( /:/, $time ); return; } sub departure_time { my ( $self, $time ) = @_; return $self->set_time( departure_time => $time ); } sub arrival_time { my ( $self, $time ) = @_; return $self->set_time( arrival_time => $time ); } sub date { my ( $self, $date ) = @_; my ( $day, $month, $year ) = split( /[.]/, $date ); if ( not( defined $day and length($day) and $day >= 1 and $day <= 31 and defined $month and length($month) and $month >= 1 and $month <= 12 ) ) { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'date', have => $date, want => 'DD.MM[.[YYYY]]' ); } if ( not defined $year or not length($year) ) { $year = ( localtime(time) )[5] + 1900; } @{ $self->{post} }{ 'itdDateDay', 'itdDateMonth', 'itdDateYear' } = ( $day, $month, $year ); return; } sub exclude { my ( $self, @exclude ) = @_; my @mapping = qw{ zug s-bahn u-bahn stadtbahn tram stadtbus regionalbus schnellbus seilbahn schiff ast sonstige }; foreach my $exclude_type (@exclude) { my $ok = 0; for my $map_id ( 0 .. $#mapping ) { if ( $exclude_type eq $mapping[$map_id] ) { delete $self->{post}->{"inclMOT_${map_id}"}; $ok = 1; } } if ( not $ok ) { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'exclude', have => $exclude_type, want => join( ' / ', @mapping ), ); } } return; } sub max_interchanges { my ( $self, $max ) = @_; $self->{post}->{maxChanges} = $max; return; } sub number_of_trips { my ( $self, $num ) = @_; $self->{post}->{calcNumberOfTrips} = $num; return; } sub select_interchange_by { my ( $self, $prefer ) = @_; given ($prefer) { when ('speed') { $self->{post}->{routeType} = 'LEASTTIME' } when ('waittime') { $self->{post}->{routeType} = 'LEASTINTERCHANGE' } when ('distance') { $self->{post}->{routeType} = 'LEASTWALKING' } default { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'select_interchange_by', have => $prefer, want => 'speed / waittime / distance', ); } } return; } sub train_type { my ( $self, $include ) = @_; given ($include) { when ('local') { $self->{post}->{lineRestriction} = 403 } when ('ic') { $self->{post}->{lineRestriction} = 401 } when ('ice') { $self->{post}->{lineRestriction} = 400 } default { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'train_type', have => $include, want => 'local / ic / ice', ); } } return; } sub use_near_stops { my ( $self, $toggle ) = @_; $self->{post}->{useProxFootSearch} = $toggle; return; } sub walk_speed { my ( $self, $walk_speed ) = @_; if ( $walk_speed ~~ [ 'normal', 'fast', 'slow' ] ) { $self->{post}->{changeSpeed} = $walk_speed; } else { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'walk_speed', have => $walk_speed, want => 'normal / fast / slow', ); } return; } sub with_bike { my ( $self, $bike ) = @_; $self->{post}->{bikeTakeAlong} = $bike; return; } sub place { my ( $self, $which, $place, $stop, $type ) = @_; if ( not( $place and $stop ) ) { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'place', error => 'Need >= three elements' ); } $place = encode( 'ISO-8859-15', $place ); $stop = encode( 'ISO-8859-15', $stop ); $type //= 'stop'; @{ $self->{post} }{ "place_${which}", "name_${which}" } = ( $place, $stop ); if ( $type ~~ [qw[address poi stop]] ) { $self->{post}->{"type_${which}"} = $type; } return; } sub create_post { my ($self) = @_; my $conf = $self->{config}; my @now = localtime( time() ); $self->{post} = { changeSpeed => 'normal', command => q{}, execInst => q{}, imparedOptionsActive => 1, inclMOT_0 => 'on', inclMOT_1 => 'on', inclMOT_10 => 'on', inclMOT_11 => 'on', inclMOT_2 => 'on', inclMOT_3 => 'on', inclMOT_4 => 'on', inclMOT_5 => 'on', inclMOT_6 => 'on', inclMOT_7 => 'on', inclMOT_8 => 'on', inclMOT_9 => 'on', includedMeans => 'checkbox', itOptionsActive => 1, itdDateDay => $now[3], itdDateMonth => $now[4] + 1, itdDateYear => $now[5] + 1900, itdLPxx_ShowFare => q{ }, itdLPxx_command => q{}, itdLPxx_enableMobilityRestrictionOptionsWithButton => q{}, itdLPxx_id_destination => ':destination', itdLPxx_id_origin => ':origin', itdLPxx_id_via => ':via', itdLPxx_mapState_destination => q{}, itdLPxx_mapState_origin => q{}, itdLPxx_mapState_via => q{}, itdLPxx_mdvMap2_destination => q{}, itdLPxx_mdvMap2_origin => q{}, itdLPxx_mdvMap2_via => q{}, itdLPxx_mdvMap_destination => q{::}, itdLPxx_mdvMap_origin => q{::}, itdLPxx_mdvMap_via => q{::}, itdLPxx_priceCalculator => q{}, itdLPxx_transpCompany => 'vrr', itdLPxx_view => q{}, itdTimeHour => $now[2], itdTimeMinute => $now[1], itdTripDateTimeDepArr => 'dep', language => 'de', lineRestriction => 403, maxChanges => 9, nameInfo_destination => 'invalid', nameInfo_origin => 'invalid', nameInfo_via => 'invalid', nameState_destination => 'empty', nameState_origin => 'empty', nameState_via => 'empty', name_destination => q{}, name_origin => q{}, name_via => q{}, nextDepsPerLeg => 1, outputFormat => 'XML', placeInfo_destination => 'invalid', placeInfo_origin => 'invalid', placeInfo_via => 'invalid', placeState_destination => 'empty', placeState_origin => 'empty', placeState_via => 'empty', place_destination => q{}, place_origin => q{}, place_via => q{}, ptOptionsActive => 1, requestID => 0, routeType => 'LEASTTIME', sessionID => 0, text => 1993, trITArrMOT => 100, trITArrMOTvalue100 => 8, trITArrMOTvalue101 => 10, trITArrMOTvalue104 => 10, trITArrMOTvalue105 => 10, trITDepMOT => 100, trITDepMOTvalue100 => 8, trITDepMOTvalue101 => 10, trITDepMOTvalue104 => 10, trITDepMOTvalue105 => 10, typeInfo_destination => 'invalid', typeInfo_origin => 'invalid', typeInfo_via => 'invalid', type_destination => 'stop', type_origin => 'stop', type_via => 'stop', useRealtime => 1 }; $self->place( 'origin', @{ $conf->{origin} } ); $self->place( 'destination', @{ $conf->{destination} } ); if ( $conf->{via} ) { $self->place( 'via', @{ $conf->{via} } ); } if ( $conf->{arrival_time} || $conf->{departure_time} ) { $self->set_time( %{$conf} ); } if ( $conf->{date} ) { $self->date( $conf->{date} ); } if ( $conf->{exclude} ) { $self->exclude( @{ $conf->{exclude} } ); } if ( $conf->{max_interchanges} ) { $self->max_interchanges( $conf->{max_interchanges} ); } if ( $conf->{num_results} ) { $self->number_of_trips( $conf->{num_results} ); } if ( $conf->{select_interchange_by} ) { $self->select_interchange_by( $conf->{select_interchange_by} ); } if ( $conf->{use_near_stops} ) { $self->use_near_stops(1); } if ( $conf->{train_type} ) { $self->train_type( $conf->{train_type} ); } if ( $conf->{walk_speed} ) { $self->walk_speed( $conf->{walk_speed} ); } if ( $conf->{with_bike} ) { $self->with_bike(1); } return; } sub new { my ( $obj, %conf ) = @_; my $ref = {}; $ref->{config} = \%conf; bless( $ref, $obj ); if ( not $ref->{config}->{efa_url} ) { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'efa_url', error => 'must be set' ); } $ref->{config}->{efa_url} =~ m{ (? (? [^:]+ : // [^/]+ ) / [^/]+ / ) }ox; $ref->{config}->{rm_base} = $+{netroot}; $ref->{config}->{sm_base} = $+{root} . '/download/envmaps/'; $ref->create_post; if ( not( defined $conf{submit} and $conf{submit} == 0 ) ) { $ref->submit( %{ $conf{lwp_options} } ); } return $ref; } sub new_from_xml { my ( $class, %opt ) = @_; my $self = { xml_reply => $opt{xml} }; $self->{config} = { efa_url => $opt{efa_url}, }; $self->{config}->{efa_url} =~ m{ (? (? [^:]+ : // [^/]+ ) / [^/]+ / ) }ox; $self->{config}->{rm_base} = $+{netroot}; $self->{config}->{sm_base} = $+{root} . '/download/envmaps/'; bless( $self, $class ); $self->parse_xml; return $self; } sub submit { my ( $self, %conf ) = @_; $self->{ua} = LWP::UserAgent->new(%conf); $self->{ua}->env_proxy; my $response = $self->{ua}->post( $self->{config}->{efa_url}, $self->{post} ); if ( $response->is_error ) { Travel::Routing::DE::EFA::Exception::Net->throw( http_response => $response, ); } $self->{xml_reply} = $response->decoded_content; $self->parse_xml; return; } sub itddate_str { my ( $self, $node ) = @_; return sprintf( '%02d.%02d.%04d', $node->getAttribute('day'), $node->getAttribute('month'), $node->getAttribute('year') ); } sub itdtime_str { my ( $self, $node ) = @_; return sprintf( '%02d:%02d', $node->getAttribute('hour'), $node->getAttribute('minute') ); } sub parse_xml_part { my ( $self, $route ) = @_; my $xp_route = XML::LibXML::XPathExpression->new( './itdPartialRouteList/itdPartialRoute'); my $xp_dep = XML::LibXML::XPathExpression->new('./itdPoint[@usage="departure"]'); my $xp_arr = XML::LibXML::XPathExpression->new('./itdPoint[@usage="arrival"]'); my $xp_date = XML::LibXML::XPathExpression->new('./itdDateTime/itdDate'); my $xp_time = XML::LibXML::XPathExpression->new('./itdDateTime/itdTime'); my $xp_via = XML::LibXML::XPathExpression->new('./itdStopSeq/itdPoint'); my $xp_sdate = XML::LibXML::XPathExpression->new('./itdDateTimeTarget/itdDate'); my $xp_stime = XML::LibXML::XPathExpression->new('./itdDateTimeTarget/itdTime'); my $xp_mot = XML::LibXML::XPathExpression->new('./itdMeansOfTransport'); my $xp_delay = XML::LibXML::XPathExpression->new('./itdRBLControlled'); my $xp_info = XML::LibXML::XPathExpression->new('./itdInfoTextList/infoTextListElem'); my $xp_mapitem_rm = XML::LibXML::XPathExpression->new( './itdMapItemList/itdMapItem[@type="RM"]/itdImage'); my $xp_mapitem_sm = XML::LibXML::XPathExpression->new( './itdMapItemList/itdMapItem[@type="SM"]/itdImage'); my $xp_fare = XML::LibXML::XPathExpression->new('./itdFare/itdSingleTicket'); my @route_parts; my $info = { duration => $route->getAttribute('publicDuration'), vehicle_time => $route->getAttribute('vehicleTime'), }; my $e_fare = ( $route->findnodes($xp_fare) )[0]; if ($e_fare) { $info->{ticket_type} = $e_fare->getAttribute('unitsAdult'); $info->{fare_adult} = $e_fare->getAttribute('fareAdult'); $info->{fare_child} = $e_fare->getAttribute('fareChild'); $info->{ticket_text} = $e_fare->textContent; } for my $e ( $route->findnodes($xp_route) ) { my $e_dep = ( $e->findnodes($xp_dep) )[0]; my $e_arr = ( $e->findnodes($xp_arr) )[0]; my $e_ddate = ( $e_dep->findnodes($xp_date) )[0]; my $e_dtime = ( $e_dep->findnodes($xp_time) )[0]; my $e_dsdate = ( $e_dep->findnodes($xp_sdate) )[0]; my $e_dstime = ( $e_dep->findnodes($xp_stime) )[0]; my $e_adate = ( $e_arr->findnodes($xp_date) )[0]; my $e_atime = ( $e_arr->findnodes($xp_time) )[0]; my $e_asdate = ( $e_arr->findnodes($xp_sdate) )[0]; my $e_astime = ( $e_arr->findnodes($xp_stime) )[0]; my $e_mot = ( $e->findnodes($xp_mot) )[0]; my $e_delay = ( $e->findnodes($xp_delay) )[0]; my @e_info = $e->findnodes($xp_info); my @e_dmap_rm = $e_dep->findnodes($xp_mapitem_rm); my @e_dmap_sm = $e_dep->findnodes($xp_mapitem_sm); my @e_amap_rm = $e_arr->findnodes($xp_mapitem_rm); my @e_amap_sm = $e_arr->findnodes($xp_mapitem_sm); my $delay = $e_delay ? $e_delay->getAttribute('delayMinutes') : 0; my ( @dep_rms, @dep_sms, @arr_rms, @arr_sms ); if ( $self->{config}->{rm_base} ) { my $base = $self->{config}->{rm_base}; @dep_rms = map { $base . $_->getAttribute('src') } @e_dmap_rm; @arr_rms = map { $base . $_->getAttribute('src') } @e_amap_rm; } if ( $self->{config}->{sm_base} ) { my $base = $self->{config}->{sm_base}; @dep_sms = map { $base . $_->getAttribute('src') } @e_dmap_sm; @arr_sms = map { $base . $_->getAttribute('src') } @e_amap_sm; } my $hash = { delay => $delay, departure_date => $self->itddate_str($e_ddate), departure_time => $self->itdtime_str($e_dtime), departure_sdate => $self->itddate_str($e_dsdate), departure_stime => $self->itdtime_str($e_dstime), departure_stop => $e_dep->getAttribute('name'), departure_platform => $e_dep->getAttribute('platformName'), train_line => $e_mot->getAttribute('name'), train_destination => $e_mot->getAttribute('destination'), arrival_date => $self->itddate_str($e_adate), arrival_time => $self->itdtime_str($e_atime), arrival_sdate => $self->itddate_str($e_asdate), arrival_stime => $self->itdtime_str($e_astime), arrival_stop => $e_arr->getAttribute('name'), arrival_platform => $e_arr->getAttribute('platformName'), }; for my $key ( keys %{$hash} ) { $hash->{$key} = decode( 'UTF-8', $hash->{$key} ); } $hash->{departure_routemaps} = \@dep_rms; $hash->{departure_stationmaps} = \@dep_sms; $hash->{arrival_routemaps} = \@arr_rms; $hash->{arrival_stationmaps} = \@arr_sms; for my $ve ( $e->findnodes($xp_via) ) { my $e_vdate = ( $ve->findnodes($xp_date) )[-1]; my $e_vtime = ( $ve->findnodes($xp_time) )[-1]; if ( not( $e_vdate and $e_vtime ) or ( $e_vdate->getAttribute('weekday') == -1 ) ) { next; } my $name = decode( 'UTF-8', $ve->getAttribute('name') ); my $platform = $ve->getAttribute('platformName'); if ( $name ~~ [ $hash->{departure_stop}, $hash->{arrival_stop} ] ) { next; } push( @{ $hash->{via} }, [ $self->itddate_str($e_vdate), $self->itdtime_str($e_vtime), $name, $platform ] ); } $hash->{extra} = [ map { decode( 'UTF-8', $_->textContent ) } @e_info ]; push( @route_parts, $hash ); } push( @{ $self->{routes} }, Travel::Routing::DE::EFA::Route->new( $info, @route_parts ) ); return; } sub parse_xml { my ($self) = @_; my $tree = $self->{tree} = XML::LibXML->load_xml( string => $self->{xml_reply}, ); #say $tree->toString(2); my $xp_element = XML::LibXML::XPathExpression->new( '//itdItinerary/itdRouteList/itdRoute'); my $xp_err = XML::LibXML::XPathExpression->new( '//itdTripRequest/itdMessage[@type="error"]'); my $xp_odv = XML::LibXML::XPathExpression->new('//itdOdv'); for my $odv ( $tree->findnodes($xp_odv) ) { $self->check_ambiguous_xml($odv); } my $err = ( $tree->findnodes($xp_err) )[0]; if ($err) { Travel::Routing::DE::EFA::Exception::Other->throw( message => $err->textContent ); } for my $part ( $tree->findnodes($xp_element) ) { $self->parse_xml_part($part); } if ( not defined $self->{routes} or @{ $self->{routes} } == 0 ) { Travel::Routing::DE::EFA::Exception::NoData->throw; } return 1; } sub check_ambiguous_xml { my ( $self, $tree ) = @_; my $xp_place = XML::LibXML::XPathExpression->new('./itdOdvPlace'); my $xp_name = XML::LibXML::XPathExpression->new('./itdOdvName'); my $xp_place_elem = XML::LibXML::XPathExpression->new('./odvPlaceElem'); my $xp_name_elem = XML::LibXML::XPathExpression->new('./odvNameElem'); my $e_place = ( $tree->findnodes($xp_place) )[0]; my $e_name = ( $tree->findnodes($xp_name) )[0]; if ( not( $e_place and $e_name ) ) { cluck('skipping ambiguity check - itdOdvPlace/itdOdvName missing'); return; } my $s_place = $e_place->getAttribute('state'); my $s_name = $e_name->getAttribute('state'); if ( $s_place eq 'list' ) { Travel::Routing::DE::EFA::Exception::Ambiguous->throw( post_key => 'place', possibilities => join( q{ | }, map { decode( 'UTF-8', $_->textContent ) } @{ $e_place->findnodes($xp_place_elem) } ) ); } if ( $s_name eq 'list' ) { Travel::Routing::DE::EFA::Exception::Ambiguous->throw( post_key => 'name', possibilities => join( q{ | }, map { decode( 'UTF-8', $_->textContent ) } @{ $e_name->findnodes($xp_name_elem) } ) ); } if ( $s_place eq 'notidentified' ) { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'place', error => 'unknown place (typo?)' ); } if ( $s_name eq 'notidentified' ) { Travel::Routing::DE::EFA::Exception::Setup->throw( option => 'name', error => 'unknown name (typo?)' ); } # 'identified' and 'empty' are ok return; } sub routes { my ($self) = @_; return @{ $self->{routes} }; } 1; __END__ =head1 NAME Travel::Routing::DE::EFA - unofficial interface to EFA-based itinerary services =head1 SYNOPSIS use Travel::Routing::DE::EFA; my $efa = Travel::Routing::DE::EFA->new( efa_url => 'http://efa.vrr.de/vrr/XSLT_TRIP_REQUEST2', origin => [ 'Essen', 'HBf' ], destination => [ 'Duisburg', 'HBf' ], ); for my $route ( $efa->routes ) { for my $part ( $route->parts ) { printf( "%s at %s -> %s at %s, via %s to %s", $part->departure_time, $part->departure_stop, $part->arrival_time, $part->arrival_stop, $part->train_line, $part->train_destination, ); } print "\n\n"; } =head1 VERSION version 2.05 =head1 DESCRIPTION B is a client for EFA-based itinerary services. You pass it the start/stop of your journey, maybe a time and a date and more details, and it returns the up-to-date scheduled connections between those two stops. It uses B and B for this. =head1 METHODS =over =item $efa = Travel::Routing::DE::EFA->new(I<%opts>) Returns a new Travel::Routing::DE::EFA object and sets up its POST data via %opts. Valid hash keys and their values are: =over =item B => I Mandatory. Sets the entry point to the EFA itinerary service. Known URLs are: =over =item * L (Verkehrsverbund GroEraum NErnberg) =item * L (Verkehrsverbund Rhein-Ruhr) =item * L (Verkehrsverbund Stuttgart) =back If you found a URL not listed here, please send it to Ederf@finalrewind.orgE. =item B => B<[> IB<,> I [ B<,> I ] B<]> Mandatory. Sets the start of the journey. I is optional and may be one of B (default), B
(street and house number) or B ("point of interest"). =item B => B<[> IB<,> I [ B<,> I ] B<]> Mandatory. Sets the end of the journey, see B. =item B => B<[> IB<,> I [ B<,> I ] B<]> Optional. Specifies an intermediate stop which the resulting itinerary must contain. See B for arguments. =item B => I Journey end time =item B => I Journey start time. Default: now =item B => I[I] Journey date. Default: tdoay =item B => \@exclude Do not use certain transport types for itinerary. Accepted arguments: zug, s-bahn, u-bahn, stadtbahn, tram, stadtbus, regionalbus, schnellbus, seilbahn, schiff, ast, sonstige =item B => I Set maximum number of interchanges =item B => I Return up to I connections. If unset, the default of the respective EFA server is used (usually 4 or 5). =item B => B|B|B Prefer either fast connections (default), connections with low wait time or connections with little distance to walk =item B => B<0>|B<1> If true: Try using near stops instead of the specified origin/destination ones =item B => B|B|B Include only local trains into itinarery (default), all but ICEs, or all. The latter two are usually way more expensive for short routes. =item B => B|B|B Set walk speed. Default: B =item B => B<0>|B<1> If true: Prefer connections allowing passengers with bikes =item B => I<\%hashref> Options to pass to C<< LWP::UserAgent->new >>. =item B => B<0>|B<1> By default, B will create a POST request and submit it. If you do not want it to be submitted yet, set this to B<0>. =back =item $efa->submit(I<%opts>) Submit the query to I. I<%opts> is passed on to C<< LWP::UserAgent->new >>. =item $efa->routes Returns a list of Travel::Routing::DE::EFA::Route(3pm) elements. Each one contains one method of getting from start to stop. =back =head2 ACCESSORS The following methods act like the arguments to B. See there. =over =item $efa->departure_time(I<$time>) =item $efa->arrival_time(I<$time>) =item $efa->date(I<$date>) =item $efa->exclude(I<@exclude>) =item $efa->max_interchanges(I<$num>) =item $efa->select_interchange_by(I<$selection>) =item $efa->train_type(I<$type>) =item $efa->use_near_stops(I<$bool>) =item $efa->walk_speed(I<$speed>) =item $efa->with_bike(I<$bool>) =back =head1 DIAGNOSTICS When encountering an error, Travel::Routing::DE::EFA throws a Travel::Routing::DE::EFA::Exception(3pm) object. =head1 DEPENDENCIES =over =item * LWP::UserAgent(3pm) =item * XML::LibXML(3pm) =back =head1 BUGS AND LIMITATIONS None known. =head1 SEE ALSO =over =item * Travel::Routing::DE::EFA::Exception(3pm) =item * Travel::Routing::DE::EFA::Route(3pm) =item * L is another implementation, using L. =back =head1 AUTHOR Copyright (C) 2009-2014 by Daniel Friesel Ederf@finalrewind.orgE =head1 LICENSE 0. You just DO WHAT THE FUCK YOU WANT TO.