Implement java.util.regex.Matcher#toMatchResult()

2008-08-17  Andrew John Hughes  <gnu_andrew@member.fsf.org>

	* java/util/regex/Matcher.java:
	(toMatchResult()): Implemented.

1 files changed, 17 insertions, 1 deletions

diff --git a/java/util/regex/Matcher.java b/java/util/regex/Matcher.java
index cc2a2e5e9..a6f34a63b 100644
--- a/java/util/regex/Matcher.java
+++ b/java/util/regex/Matcher.java
@@ -171,7 +171,7 @@ public final class Matcher implements MatchResult
 	int endIndex = match.getEndIndex();
 	// Are we stuck at the same position?
 	if (!first && endIndex == position)
-	  {
+	  {	    
 	    match = null;
 	    // Not at the end of the input yet?
 	    if (position < input.length() - 1)
@@ -590,4 +590,20 @@ public final class Matcher implements MatchResult
     return this;
   }
 
+  /**
+   * Returns a read-only snapshot of the current state of
+   * the {@link Matcher} as a {@link MatchResult}.  Any
+   * subsequent changes to this instance are not reflected
+   * in the returned {@link MatchResult}.
+   *
+   * @return a {@link MatchResult} instance representing the
+   *         current state of the {@link Matcher}.
+   */
+  public MatchResult toMatchResult()
+  {
+    Matcher snapshot = new Matcher(pattern, input);
+    snapshot.match = (REMatch) match.clone();
+    return snapshot;
+  }
+
 }