Beefy Boxes and Bandwidth Generously Provided by pair Networks
Do you know where your variables are?

Re^2: regex for word puzzle

by Anonymous Monk
on May 17, 2011 at 02:46 UTC ( #905194=note: print w/replies, xml ) Need Help??

in reply to Re: regex for word puzzle
in thread regex for word puzzle

Assume your rack is rtesamcna. Assume also you have the list of valid words in TWL.txt. The following grep command will show you words formed using only letters in your rack, but it will use any number of the letters:

grep -i '^[rtesamcna]*$' TWL.txt

Not quite what you want. You don't want words with more than 1 R, or more than 2 A's. So we filter it out:

grep -i '^[rtesamcna]*$' TWL.txt | grep -iEv 'r.*r|t.*t|e.*e|s.*s|a.*a.*a|m.*m|c.*c|n.*n'

And finally, to show anything with at least 9 letters:

grep -i '^[rtesamcna]*$' TWL.txt | grep -iEv 'r.*r|t.*t|e.*e|s.*s|a.*a.*a|m.*m|c.*c|n.*n' | grep ...... +...

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://905194]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others wandering the Monastery: (7)
As of 2018-06-20 20:13 GMT
Find Nodes?
    Voting Booth?
    Should cpanminus be part of the standard Perl release?

    Results (117 votes). Check out past polls.