2006-09-11 04:19:00 +00:00
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Licensed to the Apache Software Foundation (ASF) under one or more
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The ASF licenses this file to You under the Apache License, Version 2.0
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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-->
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2001-02-13 12:32:01 +00:00
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<html>
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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2005-04-29 18:58:16 +00:00
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<link rel="stylesheet" type="text/css" href="../stylesheets/style.css">
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2002-02-03 22:00:42 +00:00
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<title>AntStructure Task</title>
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2001-02-13 12:32:01 +00:00
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</head>
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<body>
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2018-01-22 23:52:21 +01:00
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<h2 id="antstructure">AntStructure</h2>
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<h3>Description</h3>
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2004-04-06 13:48:22 +00:00
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2010-11-11 17:04:16 +00:00
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<p>Generates an DTD for Apache Ant buildfiles which contains information
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2004-04-06 13:48:22 +00:00
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about all tasks currently known to Ant.</p>
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<p>Actually the DTD will not be a real DTD for buildfiles since Ant's
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usage of XML cannot be captured with a DTD. Several elements in Ant
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can have different attribute lists depending on the element that
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contains them. "fail" for example can be <a
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href="fail.html">the task</a> or the nested child element of the <a
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2010-05-26 20:33:51 +00:00
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href="../Tasks/sound.html">sound</a> task. Don't consider the
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2004-04-06 13:48:22 +00:00
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generated DTD something to rely upon.</p>
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<p>Also note that the DTD generated by this task is incomplete, you can
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2001-02-13 12:32:01 +00:00
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always add XML entities using <a
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2002-04-10 10:02:54 +00:00
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href="taskdef.html"><code><taskdef></code></a> or <a
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href="typedef.html"><code><typedef></code></a>. See <a
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href="http://www.sdv.fr/pages/casa/html/ant-dtd.en.html"
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target="_top">here</a> for a way to get around this problem.</p>
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2001-02-13 12:32:01 +00:00
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<p>This task doesn't know about required attributes, all will be
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listed as <code>#IMPLIED</code>.</p>
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2005-09-28 18:34:04 +00:00
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<p><em>Since Ant 1.7</em> custom structure printers can be used
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instead of the one that emits a DTD. In order to plug in your own
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structure, you have to implement the interface
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<code>org.apache.tools.ant.taskdefs.AntStructure.StructurePrinter</code>
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2018-01-22 23:52:21 +01:00
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and <code><typedef></code> your class and use the new type as a nested
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element of this task - see the example below.
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2005-09-28 18:34:04 +00:00
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2001-02-13 12:32:01 +00:00
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<h3>Parameters</h3>
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2018-01-22 23:52:21 +01:00
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<table>
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2001-02-13 12:32:01 +00:00
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top">output</td>
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<td valign="top">file to write the DTD to.</td>
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<td valign="top" align="center">Yes</td>
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</tr>
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</table>
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<h3>Examples</h3>
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2018-02-09 06:54:03 +01:00
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<pre><antstructure output="project.dtd"/></pre>
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2005-09-28 18:34:04 +00:00
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<p><b>Emitting your own structure instead of a DTD</b></p>
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<p>First you need to implement the interface</p>
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<pre>
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package org.example;
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import org.apache.tools.ant.taskdefs.AntStructure;
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public class MyPrinter implements AntStructure.StructurePrinter {
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...
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}
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</pre>
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<p>and then use it via typedef</p>
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<pre>
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2006-11-15 16:12:22 +00:00
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<typedef name="myprinter" classname="org.example.MyPrinter" />
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2005-09-28 18:34:04 +00:00
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<antstructure output="project.my">
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2006-11-15 16:12:22 +00:00
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<myprinter />
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</antstructure>
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2005-09-28 18:34:04 +00:00
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</pre>
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<p>Your own StructurePrinter can accept attributes and nested elements
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just like any other Ant type or task.</p>
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2001-02-13 12:32:01 +00:00
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</body>
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</html>
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