From: Eric Hodel <drbrain@...7.net>
Date: 2006-09-02T11:22:34+09:00
Subject: Re: RegExp issues....

On Sep 1, 2006, at 7:14 PM, Timothy Hunter wrote:
> Ben V. wrote:
>> I am trying to validate user input so it contains only letters,  
>> numbers, underscores and dashes. I am using this regexp:/[A- 
>> Z0-9_-]/. However, when I type in 'hello' in the field, it says  
>> that it doesn't match the regexp, yet I'm sure that reg exp works  
>> for letters, numbers, and underscores only. What am I doing wrong?  
>> Thanks for your help and time.
>>
>>
> Shouldn't your regexp accept lowercase as well? /[A-Za-z0-9_-]/?
>
> Or you could simplify things a bit and use \w, which matches word  
> characters, and \d, which matches digits?
>
> [\w\d_-]

\w matches digits too

'0' =~ /\w/ # => 0

-- 
Eric Hodel - drbrain@segment7.net - http://blog.segment7.net
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