On Sep 9, 12:42 pm, Fredrik Lundh <[EMAIL PROTECTED]> wrote:
>
> you may also want to do re.escape on all the words, to avoid surprises
> when the choices contain special characters.
yes, thank you very much:
import re
def oneOf(s):
alts = sorted(s.split(), reverse=True)
alts = [re.esca
On Sep 9, 9:23 am, [EMAIL PROTECTED] wrote:
> >> I really dont care if theexpressionis optimal. So the goal is
> >> something like:
>
> >> vowel_regexp = oneOf("a aa i ii u uu".split()) # yielding r'(aa|a|uu|
> >> u|ii|i)'
>
> >> Is there a public module available for this purp
Pyparsing has a really nice feature that I want in PLY. I want to
specify a list of strings and have them converted to a regular
expression.
A Perl module which does an aggressively optimizing job of this is
Regexp::List -
http://search.cpan.org/~dankogai/Regexp-Optimizer-0.15/lib/Regexp/List.pm
I'm reading http://norvig.com/spell-correct.html
and do not understand the expression listed in the subject which is
part of this function:
def train(features):
model = collections.defaultdict(lambda: 1)
for f in features:
model[f] += 1
return model
Per http://docs.python.org/
