StringBuffer.java (ensureCapacity): Don't resize vector when shared.

* java/lang/StringBuffer.java (ensureCapacity): Don't resize
	vector when shared.
	* java/util/Locale.java (Locale(String,String)): Implement in
	terms of 3-argument version; variant now defaults to empty
	string.
	(toString): Assume variant is not null.
	(equals): Assume all strings are not null.
	(Locale): Throw NullPointerException if any argument is null.
	* java/util/ResourceBundle.java (getBundle): Don't try the base
	name; now implicit in partialGetBundle call.
	(trySomeGetBundle): Search for parent bundles and call setParent
	as required.
	(partialGetBundle): Added `langStop' argument.  Use
	`Locale.toString' to compute bundleName.
	(resource_cache): New static field.
	(partialGetBundle): Cache the returned resource bundle.  Now
	synchronized.
	* gnu/gcj/text/LocaleData_en.java (contents): [collatorRule] Added
	missing `<'.
	* mauve-libgcj: Enable Collator and RuleBasedCollator.
	* java/text/natCollator.cc (decomposeCharacter): `base' now
	`const'.
	* Makefile.in: Rebuilt.
	* Makefile.am (ordinary_java_source_files): Added
	CollationElementIterator, CollationKey, Collator,
	RuleBasedCollator.
	(nat_source_files): Added natCollator.cc.
	* java/text/RuleBasedCollator.java (ceiNext): No longer static.
	(compare): Pass `this' to CollationElementIterator constructor.
	(getCollationElementIterator): Likewise.
	(ceiNext): Fix off-by-one error when finding initial substring.
	(next): Correctly mask off bits when computing return value.
	Fixed return values when one string is shorter than the other.
	* java/text/CollationElementIterator.java (collator): New field.
	(CollationElementIterator): Added collator argument.
	(next): Call ceiNext on collator object.

From-SVN: r26707

libjava/java/text/CollationElementIterator.java

@@ -27,7 +27,7 @@ public final class CollationElementIterator
   {
     if (index == text.length())
       return NULLORDER;
-    return RuleBasedCollator.ceiNext(this);
+    return collator.ceiNext(this);
   }
 
   // This one returns int while the others return short.
@@ -55,12 +55,13 @@ public final class CollationElementIterator
   }
 
   // Non-public constructor.
-  CollationElementIterator (String text)
+  CollationElementIterator (String text, RuleBasedCollator collator)
   {
     this.text = text;
     this.index = 0;
     this.lookahead_set = false;
     this.lookahead = 0;
+    this.collator = collator;
   }
 
   // Text over which we iterate.
@@ -72,4 +73,7 @@ public final class CollationElementIterator
   // A piece of lookahead.
   boolean lookahead_set;
   int lookahead;
+
+  // The RuleBasedCollator which created this object.
+  RuleBasedCollator collator;
 }

libjava/java/text/RuleBasedCollator.java

@@ -43,7 +43,7 @@ public class RuleBasedCollator extends Collator
   }
 
   // A helper for CollationElementIterator.next().
-  static int ceiNext (CollationElementIterator cei)
+  int ceiNext (CollationElementIterator cei)
   {
     if (cei.lookahead_set)
       {
@@ -61,7 +61,7 @@ public class RuleBasedCollator extends Collator
     boolean found = false;
 
     int i;
-    for (i = save; i < max; ++i)
+    for (i = save + 1; i <= max; ++i)
       {
 	s = cei.text.substring(save, i);
 	if (prefixes.get(s) == null)
@@ -108,16 +108,15 @@ public class RuleBasedCollator extends Collator
 	switch (strength)
 	  {
 	  case PRIMARY:
-	    c |= CollationElementIterator.primaryOrder(os);
-	    /* Fall through.  */
-	  case SECONDARY:
-	    c |= CollationElementIterator.secondaryOrder(os);
-	    /* Fall through.  */
-	  case TERTIARY:
-	    c |= CollationElementIterator.tertiaryOrder(os);
+	    c = os & ~0xffff;
 	    break;
+	  case SECONDARY:
+	    c = os & ~0x00ff;
+	    break;
+	  case TERTIARY:
 	  case IDENTICAL:
 	    c = os;
+	    break;
 	  }
 	if (c != 0)
 	  return c;
@@ -128,8 +127,8 @@ public class RuleBasedCollator extends Collator
   {
     CollationElementIterator cs, ct;
 
-    cs = new CollationElementIterator (source);
-    ct = new CollationElementIterator (target);
+    cs = new CollationElementIterator (source, this);
+    ct = new CollationElementIterator (target, this);
 
     while (true)
       {
@@ -140,9 +139,15 @@ public class RuleBasedCollator extends Collator
 	    && ot == CollationElementIterator.NULLORDER)
 	  break;
 	else if (os == CollationElementIterator.NULLORDER)
-	  return 1;
+	  {
+	    // Source string is shorter, so return "less than".
+	    return -1;
+	  }
 	else if (ot == CollationElementIterator.NULLORDER)
-	  return -1;
+	  {
+	    // Target string is shorter, so return "greater than".
+	    return 1;
+	  }
 
 	if (os != ot)
 	  return os - ot;
@@ -168,7 +173,7 @@ public class RuleBasedCollator extends Collator
     int max = source.length();
     for (int i = 0; i < max; ++i)
       decomposeCharacter (source.charAt(i), expand);
-    return new CollationElementIterator (expand.toString());
+    return new CollationElementIterator (expand.toString(), this);
   }
 
   public CollationKey getCollationKey (String source)

libjava/java/text/natCollator.cc

@@ -30,7 +30,7 @@ java::text::Collator::decomposeCharacter (jchar c,
       return;
     }
 
-  struct decomp_entry *base;
+  const struct decomp_entry *base;
   int high;
 
   if (decmp == FULL_DECOMPOSITION)