<!DOCTYPE html> <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <html lang="en"> <head> <link rel="stylesheet" type="text/css" href="../stylesheets/style.css"> <title>FilterSet Type</title> </head> <body> <h2 id="filterset">FilterSet</h2> <p>FilterSets are groups of filters. Filters can be defined as token-value pairs or be read in from a file. FilterSets can appear inside tasks that support this feature or at the same level as <code><target></code>—i.e., as children of <code><project></code>.</p> <p>FilterSets support the <var>id</var> and <var>refid</var> attributes. You can define a FilterSet with an <var>id</var> attribute and then refer to that definition from another FilterSet with a <var>refid</var> attribute. It is also possible to nest filtersets into filtersets to get a set union of the contained filters.</p> <p>In addition, FilterSets can specify <var>begintoken</var> and/or <var>endtoken</var> attributes to define what to match.</p> <p>Filtersets are used for doing replacements in tasks such as <code><copy></code>, etc.</p> <p>Filters can also by specified by one or more nested propertysets, the contents of which are applied when the filterset is created.</p> <p>If you specify multiple values for the same token, the last one defined within a filterset will be used.</p> <p><strong>Note</strong>: When a filterset is used in an operation, the files are processed in text mode and the filters applied line by line. This means that the copy operations will typically corrupt binary files. When applying filters you should ensure that the set of files being filtered are all text files.</p> <h3>Filterset</h3> <table class="attr"> <tr> <th scope="col">Attribute</th> <th scope="col">Description</th> <th scope="col">Default</th> <th scope="col">Required</th> </tr> <tr> <td>begintoken</td> <td>The string marking the beginning of a token (eg., <samp>@DATE@</samp>).</td> <td><q>@</q></td> <td>No</td> </tr> <tr> <td>endtoken</td> <td>The string marking the end of a token (eg., <samp>@DATE@</samp>).</td> <td><q>@</q></td> <td>No</td> </tr> <tr> <td>filtersfile</td> <td>Specify a single filtersfile.</td> <td><em>none</em></td> <td>No</td> </tr> <tr> <td>recurse</td> <td>Indicates whether the replacement text of tokens should be searched for more tokens. <em>Since Ant 1.6.3</em></td> <td><q>true</q></td> <td>No</td> </tr> <tr> <td>onmissingfiltersfile</td> <td>Indicate behavior when a nonexistent <var>filtersfile</var> is specified. One of <q>fail</q>, <q>warn</q>, <q>ignore</q>. <em>Since Ant 1.7</em></td> <td><q>fail</q></td> <td>No</td> </tr> <tr> <td>refid</td> <td>Makes this <code>filterset</code> a <a href="../using.html#references">reference</a> to a <code>filterset</code> defined elsewhere. If specified no other attributes or nested elements are allowed.</td> <td>No</td> </tr> </table> <h3>Filter</h3> <table> <tr> <th scope="col">Attribute</th> <th scope="col">Description</th> <th scope="col">Required</th> </tr> <tr> <td>token</td> <td>The token to replace (eg., <samp>@DATE@</samp>)</td> <td>Yes</td> </tr> <tr> <td>value</td> <td>The value to replace it with (eg., <q>Thursday, April 26, 2001</q>).</td> <td>Yes</td> </tr> </table> <h3>Filtersfile</h3> <table> <tr> <th scope="col">Attribute</th> <th scope="col">Description</th> <th scope="col">Required</th> </tr> <tr> <td>file</td> <td>A properties file of name-value pairs from which to load the tokens.</td> <td>Yes</td> </tr> </table> <h4>Examples</h4> <p>You are copying the <samp>version.txt</samp> file to the <samp>dist</samp> directory from the <samp>build</samp> directory but wish to replace the token <samp>@DATE@</samp> with today's date.</p> <pre> <copy file="${build.dir}/version.txt" toFile="${dist.dir}/version.txt"> <filterset> <filter token="DATE" value="${TODAY}"/> </filterset> </copy> </pre> <p>You are copying the <samp>version.txt</samp> file to the <samp>dist</samp> directory from the build directory but wish to replace the token <samp>%DATE*</samp> with today's date.</p> <pre> <copy file="${build.dir}/version.txt" toFile="${dist.dir}/version.txt"> <filterset begintoken="%" endtoken="*"> <filter token="DATE" value="${TODAY}"/> </filterset> </copy> </pre> <p>Copy all the docs but change all dates and appropriate notices as stored in a file.</p> <pre> <copy toDir="${dist.dir}/docs"> <fileset dir="${build.dir}/docs"> <include name="**/*.html"> </fileset> <filterset begintoken="%" endtoken="*"> <filtersfile file="${user.dir}/dist.properties"/> </filterset> </copy> </pre> <p>Define a FilterSet and reference it later.</p> <pre> <filterset id="myFilterSet" begintoken="%" endtoken="*"> <filter token="DATE" value="${TODAY}"/> </filterset> <copy file="${build.dir}/version.txt" toFile="${dist.dir}/version.txt"> <filterset refid="myFilterSet"/> </copy> </pre> <p>You are copying the <samp>version.txt</samp> file to the <samp>dist</samp> directory from the <samp>build</samp> directory but wish to replace the token <samp>@project.date@</samp> with the property of the same name.</p> <pre> <copy file="${build.dir}/version.txt" toFile="${dist.dir}/version.txt"> <filterset> <propertyset> <propertyref name="project.date"/> </propertyset> </filterset> </copy> </pre> </body> </html>