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pattern matching


Hello,

I'm using mathematica 2.2 (Unix), and i'm trying to do pattern 
matching with repeated patterns.

This example produce the result i want :

	In :  {a,a,a,b} /. {a...,b} -> Hello
	Out : Hello

But this one don't :
	
	In : {b} /. {a...,b} -> Hello
	Out : {b}

I was hopping :     Out : Hello

Why doesn't work it ???

-- 
+--------------------------------------------------------+
|               - No brain, no headache -                |
+--------------------------------------------------------+
|    Marc Mazzariol                       		 |
|    Swiss Federal Institute of Technology (EPFL) 	 |
|    Peripheral Systems Laboratory (LSP)		 |
|    CH-1015 Lausanne, Switzerland			 |
|    Tel: +41 21 693 3944				 |
|    Fax: +41 21 693 6680				 |
|    E-mail: Marc.Mazzariol at di.epfl.ch        		 |
+--------------------------------------------------------+


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