convert list of strings to set of regexes; convert list of strings to trie

Matteo Dell'Amico della at
Tue Jul 20 11:45:08 EDT 2004

Klaus Neuner wrote:
> Hello,
> I need a function that converts a list into a set of regexes. Like so:
>   string_list = ["blaa", "blab", "raaa", "rabb"]
>   print string_list2regexes(string_list)
> This should return something like:
>   ["bla(a|b)", "ra(aa|bb)"]

So, I guess you just want to isolate common prefixes.

> I am aware of the fact that converting the list to a *trie* would almost do
> the job. But I couldn't find anything about Python modules that produce tries.

can be of some use for you, even if I didn't have a look at it.


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