From: James Edward Gray II <james@...>
Date: 2007-01-14T13:26:06+09:00
Subject: Re: checking if a string matches a regexp - am I missing something?

On Jan 13, 2007, at 10:09 PM, Rob Sanheim wrote:

> On 1/13/07, James Edward Gray II <james@grayproductions.net> wrote:
>> On Jan 13, 2007, at 9:43 PM, Rob Sanheim wrote:
>>
>> > I figure that I must be missing something really obvious with this
>> > question.  But here goes:
>> >
>> > I want to know if a string matches a regular expression.  I  
>> don't care
>> > where the match begins, I don't want a matchdata object, I don't  
>> want
>> > to check for nil, I just want a boolean indicating if a string  
>> matches
>> > a regexp.  And I want this to be one method call.  From what I can
>> > tell, this is the closest I can get:
>> >
>> > ("string" =~ reg) >= 0 # ugly
>>
>> Just drop the noise:
>>
>> "string" =~ reg # => int results are +true+ and nil is +false+
>>
>> Hope that helps.
>>
>
> True...but here is a cleaned up version of the place where I tried  
> to do that:
>
> def valid_query?
> # query is a string accessor
>    if query_is_plain_text?
>      is_valid = valid_query_length? && (query =~ regex)
>    else
>      is_valid = query_is_url?
>    end
>    is_valid
>  end

!!(query =~ regex)

James Edward Gray II