In the join, you might want to map quotemeta over @list so that any meta-chars (particulary |) get escaped.

Also you have to be careful that none of the strings are prefixes of another string, otherwise you'll find that ordering is significant in an alternation.

--
integral, resident of freenode's #perl

In reply to Re^2: creating a regular expression's alternation dynamically? by integral
in thread creating a regular expression's alternation dynamically? by Anonymous Monk

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