NAME
RDF::Query::Functions::Buzzword::Util - plugin for buzzword.org.uk utility functions
SYNOPSIS
use RDF::TrineShortcuts qw[:all];
use Data::Dumper;
my $data = rdf_parse(<<'TURTLE', type=>'turtle');
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
<http://tobyinkster.co.uk/#i>
foaf:name "Toby Inkster" ;
foaf:phone "0123456789 ext 1234" .
TURTLE
$r = rdf_query(<<'SPARQL', $data);
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX gb: <http://buzzword.org.uk/2011/functions/gb#>
SELECT
?name
(gb:telephone_uri(?phone) AS ?phoneuri)
WHERE
{
?person foaf:name ?name ; foaf:phone ?phone .
}
SPARQL
print Dumper(flatten_iterator($r, literal_as=>'ntriples'));
DESCRIPTION
This is a plugin for RDF::Query providing a number of extension functions.
http://buzzword.org.uk/2011/functions/gb#postcode_valid
Given a literal, returns a boolean indicating whether it seems to be a syntactically valid UK postcode.
http://buzzword.org.uk/2011/functions/gb#postcode_format
Given a literal, if it seems to be a valid UK postcode, canonicalises the formatting; otherwise returns the literal unscathed.
http://buzzword.org.uk/2011/functions/gb#telephone_valid
Given a literal, returns a boolean indicating whether it seems to be a number that could be dialed from a UK phone.
Only the digits '0' to '9', letter 'x' (extension) and '+' (international dialing code) are expected. Other characters are stripped out before any checks.
http://buzzword.org.uk/2011/functions/gb#telephone_format
Canonicalises the formatting of a phone number that is valid. Should return invalid phone numbers unscathed.
http://buzzword.org.uk/2011/functions/gb#telephone_std
Returns the STD code for a phone number, if it could be extracted; the empty string otherwise.
http://buzzword.org.uk/2011/functions/gb#telephone_local
Returns the local part of a phone number, if it could be extracted; the empty string otherwise.
http://buzzword.org.uk/2011/functions/gb#telephone_extension
Returns the extension from a phone number, if it could be extracted; the empty string otherwise.
http://buzzword.org.uk/2011/functions/gb#telephone_uri
Returns a phone number as a <tel:> URI.
An existing <tel:> URI should pass through unscathed.
SEE ALSO
AUTHOR
Toby Inkster <tobyink@cpan.org>.
COPYRIGHT
Copyright 2004-2011 Toby Inkster
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.