On Jan 5, 2008, at 6:27 PM, Darin Adler wrote:
The regexp-dna expressions all could be translated from brackets
into character classes.
- They have the form: /a|b/ where "a" and "b" are expressions solely
containing letters and character classes of the same length.
- They could be converted into a sequence of character classes
without a bracket.
- Would this be faster?
Just for the record, this turned out to be wrong. The expressions
could not be translated into character classes. Because /abc|def/ is
not the same thing as /[ad][be][cf]/.
-- Darin
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