1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Raptor RDF Parser Toolkit</title>
<link rel="meta" type="application/rdf+xml" title="DOAP" href="raptor.rdf" />
</head>
<body>
<h1 style="text-align:center">Raptor RDF Parser Toolkit</h1>
<h2 style="text-align:center"><a href="http://purl.org/net/dajobe/">Dave Beckett</a></h2>
<h2>Overview</h2>
<p><a href="http://librdf.org/raptor/">Raptor</a>
is a free software / Open Source C library that provides
a set of parsers and serializers that
generate Resource Description Framework (RDF) triples
by parsing syntaxes or serialize the triples into a syntax.
The supported parsing syntaxes are RDF/XML,
N-Triples, Turtle, RSS tag soup including Atom 1.0 and 0.3,
GRDDL for XHTML and XML. The serializing syntaxes are RDF/XML (regular,
and abbreviated), N-Triples, RSS 1.0, Atom 1.0 and Adobe XMP.</p>
<p>Raptor was designed to work closely with the
<a href="http://librdf.org/">Redland RDF library</a>
(<b>R</b>DF <b>P</b>arser <b>T</b>oolkit f<b>o</b>r <b>R</b>edland)
but is entirely separate. It is a portable library that works
across many POSIX systems (Unix, GNU/Linux, BSDs, OSX, cygwin,
win32). Raptor has no memory leaks and is fast.
</p>
<p>This is a mature and stable library. A summary
of the changes can be found in the <a href="NEWS.html">NEWS</a> file,
detailed API changes in the <a href="RELEASE.html">release notes</a>
and file-by-file changes in the CVS <a href="ChangeLog">ChangeLog</a>.</p>
<ul>
<li>Designed to integrate well with <a href="http://librdf.org/">Redland</a></li>
<li>Parses content on the web if <a href="http://curl.haxx.se/libcurl/">libcurl</a>, <a href="http://xmlsoft.org/">libxml2</a> or BSD libfetch is available.</li>
<li>Supports all RDF terms including datatyped and XML literals</li>
<li>Optional features including parsers and serialisers can be selected at configure time.</li>
<li>C#, Java, Perl, PHP, Python, Ruby, Tcl interfaces when used via Redland</li>
<li>No memory leaks</li>
<li>Fast</li>
<li>Standalone <a href="rapper.html">rapper</a> RDF parser utility program</li>
</ul>
<p>Known bugs and issues are recorded in the
<a href="http://bugs.librdf.org/">Redland issue tracker</a>.</p>
<h2>Parsers</h2>
<h3>RDF/XML Parser</h3>
<p>A Parser for the standard
<a href="http://www.w3.org/TR/rdf-syntax-grammar/">RDF/XML syntax</a>.</p>
<ul>
<li>Fully handles the <a href="http://www.w3.org/TR/rdf-syntax-grammar/">RDF/XML syntax updates</a> for <a href="http://www.w3.org/TR/xmlbase/">XML Base</a>, <code>xml:lang</code>, RDF datatyping and Collections.</li>
<li>Handles all RDF vocabularies such as <a href="http://www.foaf-project.org/">FOAF</a>, <a href="http://www.purl.org/rss/1.0/">RSS 1.0</a>, <a href="http://dublincore.org/">Dublin Core</a>, <a href="http://www.w3.org/TR/owl-features/">OWL</a>, <a href="http://usefulinc.com/doap">DOAP</a></li>
<li>Handles <code>rdf:resource</code> / <code>resource</code> attributes</li>
<li>Uses <a href="http://expat.sourceforge.net/">expat</a> and/or (GNOME) <a href="http://xmlsoft.org/">libxml</a> XML parsers as available or required</li>
</ul>
<h3>N-Triples Parser</h3>
<p>A parser for the
<a href="http://www.w3.org/TR/rdf-testcases/#ntriples">N-Triples</a>
syntax as defined by the
<a href="http://www.w3.org/2001/sw/RDFCore/">W3C RDF Core working group</a>
for the <a href="http://www.w3.org/TR/rdf-testcases/">RDF Test Cases</a>.
</p>
<h3>Turtle Parser</h3>
<p>A parser for the
<a href="http://www.dajobe.org/2004/01/turtle/">Turtle Terse RDF Triple Language</a>
syntax, designed as a useful subset of
<a href="http://www.w3.org/DesignIssues/Notation3">Notation 3</a>.
</p>
<h3>RSS "tag soup" parser</h3>
<p>A parser for the multiple XML RSS formats that use the elements
such as channel, item, title, description in different ways.
Attempts to turn the input into
<a href="http://www.purl.org/rss/1.0/">RSS 1.0</a>
RDF triples. True <a href="http://www.purl.org/rss/1.0/">RSS 1.0</a>,
as a full RDF vocabulary, is best parsed by the RDF/XML parser.
It also generates triples for RSS enclosures.</p>
<p>This parser also provides support for the Atom 1.0 syndication
format defined in IETF
<a href="http://www.ietf.org/rfc/rfc4287.txt">RFC 4287</a>
</p>
<h3>GRDDL parser</h3>
<p>A parser for
<a href="http://www.w3.org/TR/2006/WD-grddl-20061024/">Gleaning Resource Descriptions from Dialects of Languages (GRDDL)</a>
syntax, W3C Working Draft of 2006-10-24 which allows reading XHTML
and XML as RDF triples by using profiles in the document that declare
XSLT transforms from the XHTML or XML content into RDF/XML or other
RDF syntax which can then be parsed.</p>
<p>The parser is beta quality.</p>
<h2>Serializers</h2>
<h3>RDF/XML Serializer</h3>
<p>A serializer to the standard
<a href="http://www.w3.org/TR/rdf-syntax-grammar/">RDF/XML syntax</a>
as revised by the
<a href="http://www.w3.org/2001/sw/RDFCore/">W3C RDF Core working group</a>
in 2004. This writes a plain triple-based RDF/XML serialization with
no optimisation or pretty-printing.</p>
<p>A second serializer is provided using several of the RDF/XML
abbreviations to provide a more compact readable format, at the cost
of some pre-processing. This is suitable for small documents.
</p>
<h3>N-Triples Serializer</h3>
<p>A serializer to the
<a href="http://www.w3.org/TR/rdf-testcases/#ntriples">N-Triples</a>
syntax as used by the
<a href="http://www.w3.org/2001/sw/RDFCore/">W3C RDF Core working group</a>
for the <a href="http://www.w3.org/TR/rdf-testcases/">RDF Test Cases</a>.
</p>
<h3>RSS 1.0 Serializer</h3>
<p>A serializer to the
<a href="http://purl.org/rss/1.0/spec">RDF Site Summary (RSS) 1.0</a>
format.
</p>
<h3>Atom 1.0 Serializer</h3>
<p>A serializer to the Atom 1.0 syndication format defined in IETF
<a href="http://www.ietf.org/rfc/rfc4287.txt">RFC 4287</a>
</p>
<h3>Adobe XMP Serializer</h3>
<p>An alpha quality serializer to the Adobe XMP profile of RDF/XML
suitable for embedding inside an external document.
</p>
<h3>GraphViz DOT Serializer</h3>
<p>An serializer to the GraphViz
<a href="http://www.graphviz.org/doc/info/lang.html">DOT format</a>
which aids visualising RDF graphs.
</p>
<h3>Turtle Serializer</h3>
<p>A serializer for the
<a href="http://www.dajobe.org/2004/01/turtle/">Turtle Terse RDF Triple Language</a>
syntax.
</p>
<h2>Documentation</h2>
<p>The public API is described in the
<a href="libraptor.html">libraptor.3</a> UNIX manual page.
It is demonstrated in the
<a href="rapper.html">rapper</a>
utility program which shows how to call the parser and write
the triples in a serialization. When Raptor is used inside
<a href="http://librdf.org/">Redland</a>,
the Redland documentation explains
how to call the parser and contains several example programs.
There are also further examples in the <tt>example</tt> directory
of the distribution.</p>
<p>To install Raptor see the <a href="INSTALL.html">Installation document</a>.
</p>
<h2>Sources</h2>
<p>The packaged sources are available from
<a href="http://download.librdf.org/source/">http://download.librdf.org/source/</a> (master site) and also from the
<a href="http://sourceforge.net/projects/librdf/">SourceForge site</a>.
The development <a href="http://subversion.tigris.org/">Subversion</a>
sources can also be
<a href="http://svn.librdf.org/view/raptor/">browsed with ViewCV</a>.
</p>
<h2>License</h2>
<p>This library is free software / open source software released
under the LGPL (GPL) or Apache 2.0 licenses. See
<a href="LICENSE.html">LICENSE.html</a> for full details.</p>
<h2>Mailing Lists</h2>
<p>The
<a href="http://librdf.org/lists/">Redland mailing lists</a>
discusses the development and use of Raptor and Redland as well as
future plans and announcement of releases.</p>
<hr />
<p>Copyright (C) 2000-2007 <a href="http://purl.org/net/dajobe/">Dave Beckett</a><br />Copyright (C) 2000-2005 <a href="http://www.bristol.ac.uk/">University of Bristol</a></p>
</body>
</html>
|
