trist(1p) [debian man page]

TRIST(1p)						User Contributed Perl Documentation						 TRIST(1p)

NAME

       trist - command-line RDF statistics

SYNOPSIS

	 trist [options] INPUT-URI [INPUT-BASE-URI]

	 Options:
	   --input F, -i F	  Set the input format to F
	   --input-uri U, -I U	  Alternative to INPUT-BASE-URI
	   --summary, --nosummary Show/hide summary info
	   --vocabs, --novocabs   Show/hide vocabulary info
	   --nodes=X		  Show ABox node info
	   --quiet, -q		  No extra information messages
	   --help, -h		  Show this help
	   --version, -v	  Show module versions

	 Input formats: rdfxml, n3, turtle, rdfa, rdfjson, nquads, trig, atom, xrd.

OPTIONS

       --input, -i
	   Specify the input format. The synopsis of this manual page shows a list of input formats. Using media types should work too. In
	   summary, it accepts any type that the "rdf_parse" function from RDF::TrineShortcuts accepts.

	   If an input type is not specified, trist will try to guess the input type (and will almost always get it right).

       --input-uri, -I, INPUT-BASE-URI
	   Any of these three methods can be used to specify a base URI for the parser to resolve relative URI references.

       --summary, --nosummary
	   Show (or not) a summary of the RDF data. Shown by default.  Includes counts of the number of unique values in subject, predicate and
	   object positions, along with the most popular subject, predicate and object; etc.

	   In this summary, "Type" is defined as any node that is the object of a triple where the predicate is rdf:type; "Vocabulary" is
	   calculated from splitting predicate URIs and type URIs into vocabulary and term using QName rules.

       --vocabs, --novocabs
	   Vocabularies calculated as above. This shows all vocabularies used in the source RDF data; not just the single most popular one.

       --nodes=X
	   Show the X most popular "ABox" nodes. RDF doesn't actually distinguish between so called TBox and ABox terms, but this tool treats any
	   predicates or rdf:type objects as TBox, everything else as ABox.

	   One-off literals are ignored.

       --quiet, -q
	   Hides useless debugging messages.

       --help, -h
	   Shows a short help message.

       --version, -v
	   Shows the version of various Perl modules used by trist. trist itself doesn't have a version number, but is distributed along with
	   RDF::TrineShortcuts, so could be considered to have the same version number as that.

NOTE

       Trist is a tool that generates a set of statistics about some input RDF data. Its output is in Turtle, designed to be as human-readable as
       possible.

       Trist is an archaic spelling of 'tryst' which is a secret meeting.

AUTHOR

       Toby Inkster, <tobyink@cpan.org>

COPYRIGHT AND LICENCE

       Copyright (C) 2010 by Toby Inkster

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8 or, at
       your option, any later version of Perl 5 you may have available.

perl v5.10.1							    2010-10-04								 TRIST(1p)

RDF::vCard::Exporter(3pm)				User Contributed Perl Documentation				 RDF::vCard::Exporter(3pm)

NAME

       RDF::vCard::Exporter - export RDF data to vCard format

SYNOPSIS

	use RDF::vCard;

	my $input    = "http://example.com/contact-data.rdf";
	my $exporter = RDF::vCard::Exporter->new(vcard_version => 3);

	print $_ foreach $exporter->export_cards($input);

DESCRIPTION

       This module reads RDF and writes vCards.

   Constructor
       o   "new(%options)"

	   Returns a new RDF::vCard::Exporter object.

	   Options:

	   o   vcard_version - '3' or '4'. This module will happily use vCard 3.0 constructs in vCard 4.0 and vice versa. But in certain places it
	       can lean one way or the other. This option allows you to influence that.

   Methods
       o   "export_cards($input, %options)"

	   Returns a list of vCards found in the input, in no particular order.

	   The input may be a URI, file name, RDF::Trine::Model or anything else that can be handled by the "rdf_parse" method of
	   RDF::TrineShortcuts.

	   Supported options include sort which, if set to true, causes the output to be sorted by name (as well as is possible); source which
	   allows you to provide the URL where the cards were sourced from; and prodid which allows you to set the product ID used in the output.

	   (A prodid must be in FPI format to be valid, though the module doesn't check this. undef is allowed. By default, RDF::vCard:Exporter
	   uses its own prodid, and unless you have a good reason to change this, you should probably let it.)

	   e.g.

	     my @cards = $exporter->export_cards(
	       $some_data,
	       sort   => 1,
	       source => 'http://bigcorp.example.com/data.rdf',
	       prodid => '+//IDN example.net//NONSGML MyScript v 0.1//EN',
	       );

	   Each item in the list returned is an RDF::vCard::Entity, though that class overloads stringification, so you can just treat each item
	   as a string mostly.

       o   "export_card($input, $subject, %options)"

	   As per "export_cards" but exports just a single card.

	   The subject provided must be an RDF::Trine::Node::Blank or RDF::Trine::Node::Resource of type v:VCard.

       o   "is_v3"

	   Returns true if this exporter is in vCard 3.0 mode.

       o   "is_v4"

	   Returns true if this exporter is in vCard 4.0 mode.

   RDF Input
       Input is expected to use the newer of the 2010 revision of the W3C's vCard vocabulary http://www.w3.org/Submission/vcard-rdf/
       <http://www.w3.org/Submission/vcard-rdf/>. (Note that even though this was revised in 2010, the term URIs include "2006" in them.)

       Some extensions from the namespace <http://buzzword.org.uk/rdf/vcardx#> are also supported. (Namely: vx:usage, vx:kind, vx:gender, vx:sex,
       vx:dday, vx:anniversary, vx:lang, vx:caladruri, vx:caluri, vx:fburl, vx:impp, vx:source.)

       The module author has made the decision not to support FOAF and other RDF vocabularies that may be used to model contact information for
       people and organisations, as they do not necessarily map cleanly onto vCard. People hoping to map non-vCard RDF to vCard using this module
       may have some luck pre-processing their RDF using a rules-based reasoner.

   vCard Output
       The output of this module mostly aims at vCard 3.0 (RFC 2426) compliance.  In the face of weird input data though, (e.g. an FN property
       that is a URI instead of a literal) it can pretty easily descend into exporting junk, non-compliant vCards.

       Many vCard 4.0 properties, such as the IMPP and KIND, are also supported.

       The vcard_version constructor option allows you to influence how some properties like GEO and TEL (which differ between 3.0 and 4.0) are
       output.

SEE ALSO

       RDF::vCard, HTML::Microformats, RDF::TrineShortcuts.

       http://www.w3.org/Submission/vcard-rdf/ <http://www.w3.org/Submission/vcard-rdf/>.

       <http://www.perlrdf.org/>.

AUTHOR

       Toby Inkster <tobyink@cpan.org>.

COPYRIGHT

       Copyright 2011 Toby Inkster

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

perl v5.14.2							    2012-06-23						 RDF::vCard::Exporter(3pm)