Pattern Matching in Scheme
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by kunjaan
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Published on 2009-06-27T17:51:50Z
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2010/06/08
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How do I accept the following input?
(list of 0 or more charcters and ends with 3) or
(list of 1 or more characters 4 and 0 or more characters after 4)
something like
(match ( list 3)) -> #t
(match ( list 1 2 3)) -> #t
(match (list 1 2 3 4)) -> #t
(match (list 1 2 3 4 5)) -> #t
(match (list 4)) -> #f
EDIT: THIS IS NOT MY HOMEWORK. I trying to write something like ELIZA from PAIP but I know only how to write a pattern that begins with a word.
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