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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:40:05 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:40:05 +0000 |
| commit | 4038ab95a094b363f1748f3dcb51511a1217475d (patch) | |
| tree | 7f393d66a783f91ddd263c78d681e485cf4f45ca /docs/html/tutorial-parser-set-id-handler.html | |
| parent | Initial commit. (diff) | |
| download | raptor2-4038ab95a094b363f1748f3dcb51511a1217475d.tar.xz raptor2-4038ab95a094b363f1748f3dcb51511a1217475d.zip | |
Adding upstream version 2.0.16.upstream/2.0.16upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'docs/html/tutorial-parser-set-id-handler.html')
| -rw-r--r-- | docs/html/tutorial-parser-set-id-handler.html | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/docs/html/tutorial-parser-set-id-handler.html b/docs/html/tutorial-parser-set-id-handler.html new file mode 100644 index 0000000..4f17805 --- /dev/null +++ b/docs/html/tutorial-parser-set-id-handler.html @@ -0,0 +1,61 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> +<title>Set the identifier creator handler: Raptor RDF Syntax Library Manual</title> +<meta name="generator" content="DocBook XSL Stylesheets Vsnapshot"> +<link rel="home" href="index.html" title="Raptor RDF Syntax Library Manual"> +<link rel="up" href="tutorial-parsing.html" title="Parsing syntaxes to RDF Triples"> +<link rel="prev" href="tutorial-parser-set-error-warning-handlers.html" title="Set parsing log message handlers"> +<link rel="next" href="tutorial-parser-set-namespace-handler.html" title="Set namespace declared handler"> +<meta name="generator" content="GTK-Doc V1.33.1 (XML mode)"> +<link rel="stylesheet" href="style.css" type="text/css"> +</head> +<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> +<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> +<td width="100%" align="left" class="shortcuts"></td> +<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> +<td><a accesskey="u" href="tutorial-parsing.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> +<td><a accesskey="p" href="tutorial-parser-set-error-warning-handlers.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> +<td><a accesskey="n" href="tutorial-parser-set-namespace-handler.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> +</tr></table> +<div class="section"> +<div class="titlepage"><div><div><h2 class="title" style="clear: both"> +<a name="tutorial-parser-set-id-handler"></a>Set the identifier creator handler</h2></div></div></div> +<p>Identifiers are created in some parsers by generating them +automatically or via hints given a syntax. Raptor can customise this +process using a user-supplied identifier handler function. +For example, in RDF/XML generated blank node identifiers and those +those specified <code class="literal">rdf:nodeID</code> are passed through this +process. Setting a handler allows the identifier generation mechanism to be +fully replaced. A lighter alternative is to use +<a class="link" href="raptor2-section-world.html#raptor-world-set-generate-bnodeid-parameters" title="raptor_world_set_generate_bnodeid_parameters ()"><code class="function">raptor_world_set_generate_bnodeid_parameters()</code></a> +to adjust the default algorithm for generated identifiers. +</p> +<p>It is used as follows +</p> +<pre class="programlisting"> + raptor_generate_bnodeid_handler bnodeid_handler; + + raptor_world_set_generate_bnodeid_handler(rdf_parser, user_data, bnodeid_handler); +</pre> +<p> +</p> +<p>The <span class="emphasis"><em>bnodeid_handler</em></span> takes the following signature: +</p> +<pre class="programlisting"> +unsigned char* +generate_id_handler(void* user_data, unsigned char* user_id) +{ + /* return a new generated ID based on user_id (optional) */ +} +</pre> +<p> +where <span class="emphasis"><em>user_id</em></span> an optional user-supplied identifier, +such as the value of a <code class="literal">rdf:nodeID</code> in RDF/XML. +</p> +</div> +<div class="footer"> +<hr>Generated by GTK-Doc V1.33.1</div> +</body> +</html>
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