Hi
  Thanks for all of your replies. Maybe I have trouble
expressiong my thought, so I describe it in details.
  I have once developed a system in visualworks 5i.4,
and now I want to convert the codes to Squeak. In
VW5i.4, I parse an expression
"Student.birthYear:=2003-Student.age", and two parts
are expected to return: 'Student.birthYear',
'Student.age' by calling a method ScanCompoundWords: ,
which I add to the class Scanner. 

scanCompoundWords: stringOrArray 
| strm |
(stringOrArray isMemberOf: Array)
   ifTrue: [^stringOrArray].
stringOrArray isEmpty ifTrue: [^Array new: 0].
self scan: (ReadStream on: stringOrArray asString).
strm := WriteStream on: (Array new: 10).
[tokenType = #doIt]
	whileFalse: 
	[(tokenType = #compoundWord 
                 or: [tokenType = #word])
		ifTrue: [strm nextPut: token].
			self scanToken].
	^strm contents.

In Squeak, however, calling the method returns four
parts:'Student', 'age', 'Student', 'birthYear'. It
seems as if that the tokenType #compoundWords can not
be recognized. 
Please tell me how to solve the problem. Thanks again.
Lulu





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