bodewig     2003/03/14 05:45:17

  Modified:    docs/manual/CoreTypes filterchain.html
               src/etc/testcases/filters build.xml
               src/main/org/apache/tools/ant/types FilterChain.java
  Added:       src/etc/testcases/filters/expected escapeunicode.test
               src/etc/testcases/filters/input escapeunicode.test
               src/main/org/apache/tools/ant/filters EscapeUnicode.java
               src/testcases/org/apache/tools/ant/filters
                        EscapeUnicodeTest.java
  Log:
  New filter <escapeunicode> that translates non-ASCII characters to
  \u1234 escapes.
  
  addresses PR: 17506
  
  Revision  Changes    Path
  1.5       +29 -1     ant/docs/manual/CoreTypes/filterchain.html
  
  Index: filterchain.html
  ===================================================================
  RCS file: /home/cvs/ant/docs/manual/CoreTypes/filterchain.html,v
  retrieving revision 1.4
  retrieving revision 1.5
  diff -u -r1.4 -r1.5
  --- filterchain.html  3 Sep 2002 15:24:08 -0000       1.4
  +++ filterchain.html  14 Mar 2003 13:45:16 -0000      1.5
  @@ -89,6 +89,7 @@
   nested elements.<BR>
   <a href="#filterreader">FilterReader</a><BR>
   <a href="#classconstants">ClassConstants</a><BR>
  +<a href="#escapeunicode">EscapeUnicode</a><BR>
   <a href="#expandproperties">ExpandProperties</a><BR>
   <a href="#headfilter">HeadFilter</a><BR>
   <a href="#linecontains">LineContains</a><BR>
  @@ -162,6 +163,33 @@
   &lt;/loadproperties&gt;
   </PRE></BLOCKQUOTE>
   
  +<H3><a name="escapeunicode">EscapeUnicode</a></H3>
  +<P>
  +This filter converts its input by changing all non US-ASCII characters
  +into their equivalent unicode escape backslash u plus 4 digits.</p>
  +
  +<P><em>since Ant 1.6</em></p>
  +
  +<H4>Example:</H4>
  +
  +This loads the basic constants defined in a Java class as Ant properties.
  +<BLOCKQUOTE><PRE>
  +&lt;loadproperties srcfile=&quot;non_ascii_property.properties&quot;&gt;
  +  &lt;filterchain&gt;
  +    &lt;filterreader 
classname=&quot;org.apache.tools.ant.filters.EscapeUnicode&quot;/&gt;
  +  &lt;/filterchain&gt;
  +&lt;/loadproperties&gt;
  +</PRE></BLOCKQUOTE>
  +
  +Convenience method:
  +<BLOCKQUOTE><PRE>
  +&lt;loadproperties srcfile=&quot;non_ascii_property.properties&quot;&gt;
  +  &lt;filterchain&gt;
  +    &lt;escapeunicode/&gt;
  +  &lt;/filterchain&gt;
  +&lt;/loadproperties&gt;
  +</PRE></BLOCKQUOTE>
  +
   <H3><a name="expandproperties">ExpandProperties</a></H3>
   <P>
   If the data contains data that represents Ant
  @@ -629,5 +657,5 @@
   
   <HR>
   
  -<P align=center>Copyright &copy; 2002 Apache Software Foundation. All rights
  +<P align=center>Copyright &copy; 2002-2003 Apache Software Foundation. All 
rights
   Reserved.</P></BODY></HTML>
  
  
  
  1.2       +21 -2     ant/src/etc/testcases/filters/build.xml
  
  Index: build.xml
  ===================================================================
  RCS file: /home/cvs/ant/src/etc/testcases/filters/build.xml,v
  retrieving revision 1.1
  retrieving revision 1.2
  diff -u -r1.1 -r1.2
  --- build.xml 30 Sep 2002 12:08:20 -0000      1.1
  +++ build.xml 14 Mar 2003 13:45:16 -0000      1.2
  @@ -6,18 +6,37 @@
     </target>
   
     <target name="cleanup">
  -    <delete dir="result" />
  +    <delete dir="result"/>
     </target>
   
     <target name="testLineContains" depends="init">
       <copy todir="result">
  -      <fileset dir="input"/>
  +      <fileset dir="input">
  +        <include name="linecontains.test"/>
  +      </fileset>
         <filterchain>
           <filterreader classname="org.apache.tools.ant.filters.LineContains">
             <param type="contains" value="beta"/>
           </filterreader>
         </filterchain>
       </copy>
  +    <!--fixcrlf srcdir="result" eol="lf">
  +      <include name="linecontains.test"/>
  +    </fixcrlf-->
  +  </target>
  +
  +  <target name="testEscapeUnicode" depends="init">
  +    <copy todir="result" encoding="UTF-8">
  +      <fileset dir="input">
  +        <include name="escapeunicode.test"/>
  +      </fileset>
  +      <filterchain>
  +        <escapeunicode/>
  +      </filterchain>
  +    </copy>
  +    <fixcrlf srcdir="result" eol="crlf">
  +      <include name="escapeunicode.test"/>
  +    </fixcrlf>
     </target>
   
   </project>
  
  
  
  1.1                  ant/src/etc/testcases/filters/expected/escapeunicode.test
  
  Index: escapeunicode.test
  ===================================================================
  #hebrew shalom olam (hello world)
  text.hebrew=\u05e9\u05dc\u05d5\u05dd \u05e2\u05d5\u05dc\u05dd
  #goethe gingko biloba
  text.german.1=Sp\u00fcrst du nicht an meinen Liedern,
  text.german.2=Da\u00df ich eins und doppelt bin ?
  # Francois Villon Ballade des Pendus
  text.french=Fr\u00e8res humains qui apr\u00e8s nous vivez
  # Usual IT example
  text.basic.latin=Hello World 
  
  
  
  1.1                  ant/src/etc/testcases/filters/input/escapeunicode.test
  
  Index: escapeunicode.test
  ===================================================================
  #hebrew shalom olam (hello world)
  text.hebrew=שלום עולם
  #goethe gingko biloba
  text.german.1=Spürst du nicht an meinen Liedern,
  text.german.2=Daß ich eins und doppelt bin ?
  # Francois Villon Ballade des Pendus
  text.french=Frères humains qui après nous vivez
  # Usual IT example
  text.basic.latin=Hello World 
  
  
  
  1.1                  
ant/src/main/org/apache/tools/ant/filters/EscapeUnicode.java
  
  Index: EscapeUnicode.java
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2003 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "Ant" and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact [EMAIL PROTECTED]
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  package org.apache.tools.ant.filters;
  
  import java.io.IOException;
  import java.io.Reader;
  import org.apache.tools.ant.types.Parameter;
  
  /**
   * Converts non latin characters to unicode escapes
   * Useful to load properties containing non latin
   * Example:
   *
   * <pre>&lt;escapeunicode&gt;</pre>
   *
   * Or:
   *
   * <pre>&lt;filterreader 
classname=&quot;org.apache.tools.ant.filters.EscapeUnicode&quot;/&gt;
  *  </pre>
   *
   * @author <a href="mailto:[EMAIL PROTECTED]">Antoine Levy-Lambert</a>
   * @since Ant 1.6
   */
  public class EscapeUnicode
      extends BaseParamFilterReader
      implements ChainableReader {
      //this field will hold unnnn right after reading a non latin character
      //afterwards it will be truncated of one char every call to read
      private StringBuffer unicodeBuf;
  
      /**
       * Constructor for "dummy" instances.
       *
       * @see BaseFilterReader#BaseFilterReader()
       */
      public EscapeUnicode() {
          super();
          unicodeBuf = new StringBuffer();
      }
  
      /**
       * Creates a new filtered reader.
       *
       * @param in A Reader object providing the underlying stream.
       *           Must not be <code>null</code>.
       */
      public EscapeUnicode(final Reader in) {
          super(in);
          unicodeBuf = new StringBuffer();
      }
  
      /**
       * Returns the next character in the filtered stream, converting non latin
       * characters to unicode escapes.
       *
       * @return the next character in the resulting stream, or -1
       * if the end of the resulting stream has been reached
       *
       * @exception java.io.IOException if the underlying stream throws
       * an IOException during reading
       */
      public final int read() throws IOException {
          if (!getInitialized()) {
              initialize();
              setInitialized(true);
          }
  
          int ch= - 1;
          if (unicodeBuf.length() == 0) {
              ch = in.read();
              if (ch != -1) {
                  char achar = (char) ch;
                  if (achar >= '\u0080') {
                      unicodeBuf = new StringBuffer("u0000");
                      String s = Integer.toHexString(ch);
                      //replace the last 0s by the chars contained in s
                      for (int i = 0; i < s.length(); i++) {
                          unicodeBuf.setCharAt(unicodeBuf.length()
                                               - s.length() + i,
                                               s.charAt(i));
                      }
                      ch='\\';
                  }
              }
          } else {
              ch = (int) unicodeBuf.charAt(0);
              unicodeBuf.deleteCharAt(0);
          }
          return ch;
      }
  
      /**
       * Creates a new EscapeUnicode using the passed in
       * Reader for instantiation.
       *
       * @param rdr A Reader object providing the underlying stream.
       *            Must not be <code>null</code>.
       *
       * @return a new filter based on this configuration, but filtering
       *         the specified reader
       */
      public final Reader chain(final Reader rdr) {
          EscapeUnicode newFilter = new EscapeUnicode(rdr);
          newFilter.setInitialized(true);
          return newFilter;
      }
  
      /**
       * Parses the parameters (currently unused)
       */
      private final void initialize() {
          Parameter[] params = getParameters();
          if (params != null) {
              for (int i = 0; i < params.length; i++) {
              }
          }
      }
  }
  
  
  
  
  1.9       +9 -1      ant/src/main/org/apache/tools/ant/types/FilterChain.java
  
  Index: FilterChain.java
  ===================================================================
  RCS file: /home/cvs/ant/src/main/org/apache/tools/ant/types/FilterChain.java,v
  retrieving revision 1.8
  retrieving revision 1.9
  diff -u -r1.8 -r1.9
  --- FilterChain.java  10 Feb 2003 14:14:30 -0000      1.8
  +++ FilterChain.java  14 Mar 2003 13:45:16 -0000      1.9
  @@ -1,7 +1,7 @@
   /*
    * The Apache Software License, Version 1.1
    *
  - * Copyright (c) 2002 The Apache Software Foundation.  All rights
  + * Copyright (c) 2002-2003 The Apache Software Foundation.  All rights
    * reserved.
    *
    * Redistribution and use in source and binary forms, with or without
  @@ -56,6 +56,7 @@
   import java.util.Vector;
   import org.apache.tools.ant.BuildException;
   import org.apache.tools.ant.filters.ClassConstants;
  +import org.apache.tools.ant.filters.EscapeUnicode;
   import org.apache.tools.ant.filters.ExpandProperties;
   import org.apache.tools.ant.filters.HeadFilter;
   import org.apache.tools.ant.filters.LineContains;
  @@ -135,6 +136,13 @@
   
       public final void addTailFilter(final TailFilter tailFilter) {
           filterReaders.addElement(tailFilter);
  +    }
  +
  +    /**
  +     * @since Ant 1.6
  +     */
  +    public final void addEscapeUnicode(final EscapeUnicode escapeUnicode) {
  +        filterReaders.addElement(escapeUnicode);
       }
   
       /**
  
  
  
  1.1                  
ant/src/testcases/org/apache/tools/ant/filters/EscapeUnicodeTest.java
  
  Index: EscapeUnicodeTest.java
  ===================================================================
  /*
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2003 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "Ant" and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact [EMAIL PROTECTED]
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  package org.apache.tools.ant.filters;
  
  import java.io.File;
  import java.io.IOException;
  
  import org.apache.tools.ant.BuildFileTest;
  import org.apache.tools.ant.util.FileUtils;
  
  /**
   */
  public class EscapeUnicodeTest extends BuildFileTest {
  
      public EscapeUnicodeTest(String name) {
          super(name);
      }
  
      public void setUp() { 
          configureProject("src/etc/testcases/filters/build.xml");
      }
      
      public void tearDown() { 
          executeTarget("cleanup");
      }
      
      public void testEscapeUnicode() throws IOException {
          executeTarget("testEscapeUnicode");
          File expected = 
getProject().resolveFile("expected/escapeunicode.test");
          File result = getProject().resolveFile("result/escapeunicode.test");
          FileUtils fu = FileUtils.newFileUtils();
          assertTrue(fu.contentEquals(expected, result));
      }
  
  }
  
  
  

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