From: Robert Klemme <shortcutter@...>
Date: 2010-04-10T20:45:07+09:00
Subject: Re: return string within seperators only

On 04/09/2010 10:26 PM, Caleb Clausen wrote:
> On 4/9/10, Jesse B. <jessebos@aol.com> wrote:
>> trying to do something like this
>>
>> some text
>> some more text /what I want/ some more text
>> some more text
>>
>> returns
>>
>> "what I want"
>>
>> how would I write this to get just what is between the first and second
>> forward slashes?
> 
> irb(main):001:0> s=<<END
> irb(main):002:0" some text
> irb(main):003:0" some more text /what I want/ some more text
> irb(main):004:0" some more text
> irb(main):005:0" END
> => "some text\nsome more text /what I want/ some more text\nsome more text\n"
> irb(main):006:0> s[%r{/.*?/}]
> => "/what I want/"

With a capturing group you can even get exactly the text wanted:

irb(main):001:0> s = "some /text that I want/ not"
=> "some /text that I want/ not"
irb(main):002:0> s[%r{/(.*?)/}, 1]
=> "text that I want"

Or, if you also want to remove whitespace at the edges:

irb(main):004:0> s = "some / text that I want trimmed  / not"
=> "some / text that I want trimmed  / not"
irb(main):005:0> s[%r{/(.*?)/}, 1]
=> " text that I want trimmed  "
irb(main):006:0> s[%r{/\s*(.*?)\s*/}, 1]
=> "text that I want trimmed"

Kind regards

	robert

-- 
remember.guy do |as, often| as.you_can - without end
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