Dear Monks,

assume I have a list of "simple enough" regexes (in the sense that they don't contain any backrefs, embedded code or the like).

Is it possible to decide (and if so what would be a good algorithm for that) that every possible string matches only against at most one regex in the list - or put another way that no possible string would match against 2 or more regexes of the list.

So I want an algorithm that takes a list of regexes and decides whether these regexes are mutual exclusive in the sense that no string would ever match against more than 1 regex of the list.

Any ideas?

Many thanks!

In reply to mutual exclusion of regexes by morgon

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