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/* |
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* The Apache Software License, Version 1.1 |
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* |
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* Copyright (c) 2000 The Apache Software Foundation. All rights |
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* reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if |
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* any, must include the following acknowlegement: |
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* "This product includes software developed by the |
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* Apache Software Foundation (http://www.apache.org/)." |
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* Alternately, this acknowlegement may appear in the software itself, |
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* if and wherever such third-party acknowlegements normally appear. |
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* |
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* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software |
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* Foundation" must not be used to endorse or promote products derived |
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* from this software without prior written permission. For written |
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* permission, please contact apache@apache.org. |
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* |
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* 5. Products derived from this software may not be called "Apache" |
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* nor may "Apache" appear in their names without prior written |
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* permission of the Apache Group. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of the Apache Software Foundation. For more |
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* information on the Apache Software Foundation, please see |
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* <http://www.apache.org/>. |
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*/ |
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package org.apache.tools.ant.types; |
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import org.apache.tools.ant.Project; |
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import org.apache.tools.ant.PathTokenizer; |
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import java.io.File; |
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import java.util.Vector; |
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import java.util.StringTokenizer; |
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import java.text.CharacterIterator; |
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import java.text.StringCharacterIterator; |
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/** |
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* This object represents a path as used by CLASSPATH or PATH |
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* environment variable. |
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* |
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* <code> |
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* <sometask><br> |
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* <somepath> |
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* <pathelement location="/path/to/file.jar" /> |
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* <pathelement path="/path/to/file2.jar:/path/to/class2;/path/to/class3" /> |
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* <pathelement location="/path/to/file3.jar" /> |
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* <pathelement location="/path/to/file4.jar" /> |
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* </somepath> |
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* </sometask><br> |
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* </code> |
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* |
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* The object implemention <code>sometask</code> must provide a method called |
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* <code>createSomepath</code> which returns an instance of <code>Path</code>. |
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* Nested path definitions are handled by the Path object and must be labeled |
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* <code>pathelement</code>.<p> |
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* |
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* The path element takes a parameter <code>path</code> which will be parsed |
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* and split into single elements. It will usually be used |
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* to define a path from an environment variable. |
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* |
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* @author Thomas.Haas@softwired-inc.com |
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* @author <a href="mailto:stefan.bodewig@megabit.net">Stefan Bodewig</a> |
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*/ |
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public class Path { |
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private Vector definition; |
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private Project project; |
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public static Path systemClasspath = |
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new Path(null, System.getProperty("java.class.path")); |
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public Path(Project p, String path) { |
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this(p); |
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setPath(path); |
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} |
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public Path(Project p) { |
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this.project = project; |
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definition = new Vector(); |
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} |
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/** |
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* Adds a element definition to the path. |
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* @param location the location of the element to add (must not be |
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* <code>null</code> nor empty. |
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*/ |
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public void setLocation(String location) { |
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if (location != null && location.length() > 0) { |
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String element = translateFile(resolveFile(project, location)); |
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if (definition.indexOf(element) == -1) { |
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definition.addElement(element); |
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} |
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} |
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} |
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/** |
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* Append the contents of the other Path instance to this. |
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*/ |
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public void append(Path other) { |
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String[] l = other.list(); |
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for (int i=0; i<l.length; i++) { |
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if (definition.indexOf(l[i]) == -1) { |
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definition.addElement(l[i]); |
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} |
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} |
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} |
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/** |
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* Parses a path definition and creates single PathElements. |
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* @param path the path definition. |
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*/ |
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public void setPath(String path) { |
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final Vector elements = translatePath(project, path); |
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for (int i=0; i < elements.size(); i++) { |
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String element = (String) elements.elementAt(i); |
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if (definition.indexOf(element) == -1) { |
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definition.addElement(element); |
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} |
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} |
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} |
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public Path createPathElement() { |
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return this; |
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} |
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/** |
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* Returns all path elements defined by this and netsed path objects. |
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* @return list of path elements. |
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*/ |
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public String[] list() { |
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final String[] result = new String[definition.size()]; |
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definition.copyInto(result); |
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return result; |
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} |
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/** |
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* Returns a textual representation of the path, which can be used as |
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* CLASSPATH or PATH environment variable definition. |
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* @return a textual representation of the path. |
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*/ |
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public String toString() { |
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final String[] list = list(); |
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// empty path return empty string |
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if (list.length == 0) return ""; |
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// path containing one or more elements |
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final StringBuffer result = new StringBuffer(list[0].toString()); |
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for (int i=1; i < list.length; i++) { |
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result.append(File.pathSeparatorChar); |
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result.append(list[i]); |
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} |
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return result.toString(); |
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} |
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public static Vector translatePath(Project project, String source) { |
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final Vector result = new Vector(); |
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if (source == null) return result; |
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PathTokenizer tok = new PathTokenizer(source); |
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StringBuffer element = new StringBuffer(); |
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while (tok.hasMoreTokens()) { |
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element.setLength(0); |
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element.append(resolveFile(project, tok.nextToken())); |
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for (int i=0; i<element.length(); i++) { |
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translateFileSep(element, i); |
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} |
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result.addElement(element.toString()); |
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} |
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return result; |
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} |
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public static String translateFile(String source) { |
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if (source == null) return ""; |
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final StringBuffer result = new StringBuffer(source); |
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for (int i=0; i < result.length(); i++) { |
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translateFileSep(result, i); |
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} |
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return result.toString(); |
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} |
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protected static boolean translateFileSep(StringBuffer buffer, int pos) { |
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if (buffer.charAt(pos) == '/' || buffer.charAt(pos) == '\\') { |
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buffer.setCharAt(pos, File.separatorChar); |
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return true; |
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} |
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return false; |
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} |
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public int size() { |
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return definition.size(); |
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} |
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private static String resolveFile(Project project, String relativeName) { |
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if (project != null) { |
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return project.resolveFile(relativeName).getAbsolutePath(); |
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} |
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return relativeName; |
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} |
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} |
Stefan Bodewig