Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?

Re: regex help

by AnomalousMonk (Canon)
on Oct 06, 2013 at 03:27 UTC ( #1057102=note: print w/replies, xml ) Need Help??

in reply to regex help

(Further to kcott's reply:)

kelscat18: Not only does the substitution you show in the OP select the wrong strings when used with grep, it changes them and also changes strings in the input array.

>perl -wMstrict -le "my @lines = qw(aaa 111 a2a2 a2==a2 aa==aa); printf '@lines before: '; printf qq{'$_' } for @lines; print ''; ;; my @words = grep(s/[^a-zA-Z0-9]/ /g, @lines); printf '@lines after: '; printf qq{'$_' } for @lines; print ''; printf '@words: '; printf qq{'$_' } for @words; print ''; " @lines before: 'aaa' '111' 'a2a2' 'a2==a2' 'aa==aa' @lines after: 'aaa' '111' 'a2a2' 'a2 a2' 'aa aa' @words: 'a2 a2' 'aa aa'

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1057102]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others cooling their heels in the Monastery: (5)
As of 2016-10-22 17:24 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (297 votes). Check out past polls.