Patternset allows nested inverted patternsets using <invert>.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@526228 13f79535-47bb-0310-9956-ffa450edef68

WHATSNEW

@@ -92,7 +92,9 @@ Other changes:
 
 * Add IgnoreDependenciesExecutor for weird cases when the user wants to run
   only the targets explicitly specified.
-  
+
+* Patternset allows nested inverted patternsets using <invert>.
+
 
 Changes from Ant 1.6.5 to Ant 1.7.0
 ===================================

docs/manual/CoreTypes/patternset.html

@@ -126,6 +126,9 @@ you can use to test the existance of a property.</p>
 <h4><code>patternset</code></h4>
 <p>Patternsets may be nested within one another, adding the nested
 patterns to the parent patternset.</p>
+<h4><code>invert</code></h4>
+<p>A nested patternset can be inverted using the <code>&lt;invert&gt;</code>
+element. <em>Since Ant 1.7.1</em></p>
 <h3>Examples</h3>
 <blockquote><pre>
 &lt;patternset id=&quot;non.test.sources&quot;&gt;

src/main/org/apache/tools/ant/types/PatternSet.java

@@ -143,6 +143,19 @@ public class PatternSet extends DataType implements Cloneable {
         }
     }
 
+    private class InvertedPatternSet extends PatternSet {
+        private InvertedPatternSet(PatternSet p) {
+            setProject(p.getProject());
+            addConfiguredPatternset(p);
+        }
+        public String[] getIncludePatterns(Project p) {
+            return super.getExcludePatterns(p);
+        }
+        public String[] getExcludePatterns(Project p) {
+            return super.getIncludePatterns(p);
+        }
+    }
+
     /**
      * Creates a new <code>PatternSet</code> instance.
      */
@@ -509,4 +522,11 @@ public class PatternSet extends DataType implements Cloneable {
         }
     }
 
+    /**
+     * Add an inverted patternset.
+     *
+     */
+    public void addConfiguredInvert(PatternSet p) {
+        addConfiguredPatternset(new InvertedPatternSet(p));
+    }
 }