4 of <a href="http://relaxng.org/spec-20011203.html">Relax
5 NG</a> schema validation
7 Lisp, including support for compact syntax and the XSD type
12 by <a href="mailto:david@lichteblau.com">David
13 Lichteblau</a> and is designed as an add-on library for
14 <a href="http://common-lisp.net/project/cxml">Closure XML</a>.
15 It is available under an X11-style license.
18 Please send bug reports
19 to <a href="mailto:cxml-devel@common-lisp.net">
20 cxml-devel@common-lisp.net</a>
21 (<a href="http://common-lisp.net/cgi-bin/mailman/listinfo/cxml-devel">list information</a>).
24 <h3>Download and Installation</h3>
28 <a href="http://www.lichteblau.com/cxml-rng/download/">tarballs</a>
29 or get it from git: <tt>http://www.lichteblau.com/git/cxml-rng.git</tt>
33 <a href="http://common-lisp.net/project/cxml">Closure XML</a>,
34 <a href="http://weitz.de/cl-ppcre/">CL-PPCE</a>,
35 <a href="http://www.pps.jussieu.fr/~jch/software/cl-yacc/">CL-Yacc</a>,
36 <a href="http://www.cliki.net/PARSE-NUMBER">parse-number</a>,
37 and <a href="http://www.cliki.net/cl-base64">cl-base64</a>.
38 <a href="http://www.cliki.net/asdf">ASDF</a> is used for
39 compilation. Register the .asd file, e.g. by symlinking it,
40 then compile cxml-rng using <tt>asdf:operate</tt>.
42 <pre>$ ln -sf `pwd`/cxml-rng.asd /path/to/your/registry/
43 * (asdf:operate 'asdf:load-op :cxml-rng)</pre>
45 <h3>Implementation-specific notes</h3>
47 At this point, cxml-rng is written to work with Lisp strings
48 (as opposed to runes and rods), and is meant to be used on
49 Lisp implementations with Unicode support.
54 Use <a href="doc/pages/cxml-rng__parse-schema.html">cxml-rng:parse-schema</a>
55 to parse a Relax NG schema file. The
57 href="doc/pages/cxml-rng__schema.html">schema</a>
58 object is a representation of a simplified schema using Lisp
59 objects, which has gone through most stages of simplification as
60 described the Relax NG
61 specification. <a href="doc/pages/cxml-rng__serialize-schema.html">cxml-rng:serialize-schema</a>
62 can be used to write a Relax NG file in XML syntax for this
66 In order to validate XML against a schema, create a
67 validation handler for the grammar
68 using <a href="doc/pages/cxml-rng__make-validator.html">cxml-rng:make-validator</a>.
70 handler processes SAX events and can be used with any
71 function generating such events, in particular
73 href="http://common-lisp.net/project/cxml/sax.html#parser">cxml:parse-file</a>.
75 <pre class="code">(cxml:parse-file "example.xml"
76 <blau>(cxml-rng:make-validator
77 (cxml-rng:parse-schema #p"example.rng"))</blau>)</pre>
79 In order to validate while also processing events with
80 another handler, use a broadcast handler. For example, to
81 parse XML into DOM while also validating it, broadcast to
82 the validator and DOM builder (in that order):
84 <pre class="code" style="color: #777777">(cxml:parse-file "example.xml"
85 <blau>(cxml:make-broadcast-handler</blau>
86 (cxml-rng:make-validator
87 (cxml-rng:parse-schema #p"example.rng"))
88 <blau>(cxml-dom:make-dom-builder))</blau>)</pre>
90 To validate with the klacks parser, use a tapping source.
92 <pre class="code" style="color: #777777">(klacks:with-open-source
93 (s <blau>(klacks:make-tapping-source</blau>
94 (cxml:make-source #p"example.xml")
95 <blau>(cxml-rng:make-validator
96 (cxml-rng:parse-schema #p"example.rng"))</blau>))
97 (loop for key = (klacks:peek-next s) while key do (print key)))</pre>
99 <h3>Documentation</h3>
101 <a href="doc/index.html">API documentation</a> is available.