Thanks Markus!
--
Later,
Darin
On Sun, Sep 30, 2012 at 4:47 PM, markus <mar...@reality.com> wrote:
>
>> I'm working on a provider and it needs to parce the output from a
>> command that's space separated on a single line. So far I've been
>> unsuccessful at splitting it up so I can loop thru the values to see
>> if a certain value is present, my utter lack of programming exp isn't
>> helping things. How can I split the output?
>
> A few things that might be helpful:
>
> 1. If you haven't already, check out irb, a command line utility that
> lets you try out little bits of ruby.
>
> 2. String#split(regex) is likely what you are looking for.
>
> my_line.split(/ +/)
>
> will split the string on each occurrence of one or more spaces.
>
> 3. Array#any? {test} may also be useful. It returns true if any of the
> elements in the array pass the test.
>
> Try going in to irb and playing with these to see if they do what you
> want:
>
>> irb
> irb(main):001:0> "This is a test".split(/ +/)
> => ["This", "is", "a", "test"]
> irb(main):002:0> "This is a test".split(/ +/).any? { |w| w == 'a' }
> => true
> irb(main):003:0> "This is a test".split(/ +/).any? { |w| w == 'an' }
> => false
>
> 4. A more direct solution may be to use a regular expression to test for
> the value you are interested in directly, without bothering to split up
> the line. By using a \b at the start and end of your regular expression
> you can make it only match on word boundaries:
>
> irb(main):004:0> "This is a test" =~ /\bhis\b/i
> => nil
> irb(main):005:0> "This is a test" =~ /\bthis\b/i
> => 0
>
> (Note that 0, meaning the start of the string, counts as true in ruby,
> while nil, meaning no match found, counts as false).
>
> -- Markus
>
>
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