find sublist inside list

[Matthias Gallé]

Hi.

My problem is to replace all occurrences of a sublist with a new element.

Example:
Given ['a','c','a','c','c','g','a','c'] I want to replace all 
occurrences of ['a','c'] by 6 (result [6,6,'c','g',6]).

If I do this with string ('acaccgac') I have the advantage of all the 
'find' functions, but perfomance is bad and some extra care must be 
taken if one element consist of more then one character (case of 11 for 
example)

So I really would like to work with lists straightforward, but I could 
not found anything to search a sublist inside a list.
Any propositions for a simple solution?

Thanks in advance,


--
Matthias Gallé
Project Symbiose
Centre de Recherche INRIA Rennes - Bretagne Atlantique,
Campus de Beaulieu, 35042 Rennes cedex, France
tel: (33|0) 2 9984 7523
http://www.irisa.fr/symbiose/matthias_galle