On Tue, November 14, 2006 7:57 pm, John Meyer wrote:
> Is there a way to make a regular expression to match on a particular
> way
> the letters are arranged? For instance, if you had a word:
> THAT
> It could match on any word in the dictionary that had the form:
> 1231
At 11/21/2006 11:07 AM, Richard Lynch wrote:
For any word with more then 9 unique characters, you are going to have
SERIOUS problems...
Consider this:
supercalifragilisticexpialidocious
123456789105711989...
How can you tell that '11' for the 'g' isn't supposed to be '1'
followed by '1' for two 's' characters in a row?
supercalifrassilisticexpialidocious
123456789105711989...
You may need to represent your digits in, say, hex form, or even in
base 26 form, which gives you the full alphabet as unique digits.
I agree that, of the many ways to encode this, using single ASCII
digits would be one of the poorest.
One rather obvious cypher would be the alphabet itself -- a set of
one-character symbols of precisely the same number as the characters
you want to encode:
php
ABA
that
ABCA
whew
ABCA
supercalifragilisticexpialidocious
ABCDEFGHIJEGKIHIALIFDMCIGHINOFIOBA
Regards,
Abcd
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