NAME

NAME
RDF::TrineX::Serializer::MockTurtleSoup - he's a bit slow, but he's sure
good lookin'

SYNOPSIS
use RDF::TrineX::Serializer::MockTurtleSoup;

my $ser = "RDF::TrineX::Serializer::MockTurtleSoup"->new(%opts);
$ser->serialize_model_to_file($fh, $model);

DESCRIPTION
Like RDF::Trine::Serializer::Turtle but real pretty.

And slower.

And probably breaks with some complex graphs.

What's so pretty?
* Output interesting data first. Output URIs before bnodes. Output
rdf:type and rdfs:label before other predicates. Allow the user to
define criteria for what nodes are "interesting".

* Use QNames for predicates, classes and datatypes, use full URIs
elsewhere. But also allow the user to supply a list of additional
URIs that will be abbreviated to QNames:

"RDF::TrineX::Serializer::MockTurtleSoup"->new(
abbreviate => [
qr{^http://ontologi\.es/},
qr{^http://purl\.org/},
"http://www.google.com/",
],
);

* Generate those QNames using RDF::Prefixes because it generates
awesome prefixes. (Better than "ns1", "ns2", etc.)

* When data is equally interesting, sort alphabetically by subject,
predicate and object. When sorting by predicate, sort by the
predicate's QName, not its full URI.

* Compact Turtle list syntax (mostly stolen from Greg's
RDF::Trine::Serializer::Turtle)

* Inline simple bnodes.

* Indent nicely.

Options
The constructor supports the following options:

"abbreviate"
This option will be used as the right-hand side of a smart match to
test URIs to see if they should be abbreviated to QNames.

URIs used as predicates or as the object of rdf:type triples are
always abbreviated anyway. URIs which cannot be abbreviated to a
legal QName will just be output as URIs.

"apostrophe"
Boolean; if true, then the serializer will sometimes quote literals
with an apostrophe instead of double-quote marks. This is allowed by
recent versions of the Turtle spec, but was disallowed by earlier
specifications, and not widely supported yet. Defaults to false.

"colspace"
This allows your predicate-object pairs to line up as nice columns.
The smaller the number, the closer they get. Default is 20.

"encoding"
Either "ascii" or "utf8". Default is "utf8".

"indent"
A whitespace string to indent by. The default is one tab character.
(God's chosen indentation.)

"labelling"
This option will be used as the right-hand side of a smart match to
determine which URIs are considered to be equivalent to
"rdfs:label". The default is just
"http://www.w3.org/2000/01/rdf-schema#label".

"namespaces"
A hashref of prefix => URI pairs to define preferred QName prefixes.
There is no guarantee that these will be honoured, but they usually
will. RDF::Prefixes does a damn good job without any help, so this
is generally pretty unnecessary.

"priorities"
If defined, must be a coderef. The coderef will be called with
arguments: the serializer object itself, a node and the
RDF::Trine::Model being serialized.

The coderef can use data within the model to determine how
"interesting" the node is. High numbers are very interesting.
Negitive numbers are very boring.

Interesting nodes are more likely to appear earlier on in the
output.

Default is undef.

"repeats"
Boolean. If false (the default), will output data like:

<http://example.com/>
dc:title "Cat"@en, "Chat"@fr.

If true, will output data like:

<http://example.com/>
dc:title "Cat"@en;
dc:title "Chat"@fr.

Methods
This module provides the same API as RDF::Trine::Serializer.

BUGS
Please report any bugs to
<http://rt.cpan.org/Dist/Display.html?Queue=RDF-TrineX-Serializer-MockTu
rtleSoup>.

SEE ALSO
RDF::Trine::Serializer::Turtle.

AUTHOR
Toby Inkster <[email protected]>.

COPYRIGHT AND LICENCE
This software is copyright (c) 2013 by Toby Inkster.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

DISCLAIMER OF WARRANTIES
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.