Index: RECompiler.java
===================================================================
RCS file: /home/cvspublic/jakarta-regexp/src/java/org/apache/regexp/RECompiler.java,v
retrieving revision 1.8
diff -u -b -r1.8 RECompiler.java
--- RECompiler.java	13 Dec 2002 18:40:16 -0000	1.8
+++ RECompiler.java	3 Feb 2003 14:57:27 -0000
@@ -98,7 +98,7 @@
     static final char ESC_CLASS    = 0xfffd;            // Escape represents a whole class of characters
 
     // {m,n} stacks
-    static final int maxBrackets = 10;                  // Maximum number of bracket pairs
+    static int maxBrackets = 10;                        // Initial max number of bracket pairs
     static final int bracketUnbounded = -1;             // Unbounded value
     static final int bracketFinished = -2;              // Unbounded value
     int brackets = 0;                                   // Number of bracket sets
@@ -291,6 +291,32 @@
         }
     }
 
+    /** Enlarge storage for brackets only as needed. */
+    synchronized void reallocBrackets() {
+        // trick the tricky
+        if( bracketStart == null )
+            allocBrackets();
+
+        int new_size = maxBrackets * 2;
+        int[] new_bS = new int[ new_size ];
+        int[] new_bE = new int[ new_size ];
+        int[] new_bM = new int[ new_size ];
+        int[] new_bO = new int[ new_size ];
+        // Initialize to invalid values
+        for( int i=brackets; i<new_size; i++ ) {
+            new_bS[i] = new_bE[i] = new_bM[i] = new_bO[i] = -1;
+        }
+        System.arraycopy( bracketStart,0, new_bS,0, brackets );
+        System.arraycopy( bracketEnd,0,   new_bE,0, brackets );
+        System.arraycopy( bracketMin,0,   new_bM,0, brackets );
+        System.arraycopy( bracketOpt,0,   new_bO,0, brackets );
+        bracketStart = new_bS;
+        bracketEnd   = new_bE;
+        bracketMin   = new_bM;
+        bracketOpt   = new_bO;
+        maxBrackets = new_size;
+    }
+
     /**
      * Match bracket {m,n} expression put results in bracket member variables
      * @exception RESyntaxException Thrown if the regular expression has invalid syntax.
@@ -1031,7 +1057,8 @@
                     {
                         if (brackets >= maxBrackets)
                         {
-                            syntaxError("Too many bracketed closures (limit is 10)");
+                            // no limit anymore
+                            reallocBrackets();
                         }
                         bracketStart[brackets] = idx;
                         bracket();