Groovy - Regular expression question

[Dave McGee]

Hi there,

I have to deal with a String and try get a number identifier out of the String after the word "Element" has occurred. 

Some examples I am dealing with appear as follows:

random unnecessary data Element1 random unnecessary data

more random unnecessary data Element2 random unnecessary data

..

more and more random unnecessary data Element57 random unnecessary data

random unnecessary data random unnecessary data Element105 more and more random unnecessary data

etc

So I'd like to search for "Element" and get "Element105" for example. Is there an elegant way of doing this with regular expressions in Groovy? 

Any help appreciated!

Regards,
Dave

[Dinko Srkoc]

On 23 February 2012 01:16, Dave McGee <[hidden email]> wrote:

> Hi there,
>
> I have to deal with a String and try get a number identifier out of the
> String after the word "Element" has occurred.
>
> Some examples I am dealing with appear as follows:
>
> random unnecessary data Element1 random unnecessary data
> more random unnecessary data Element2 random unnecessary data
> ..
> more and more random unnecessary data Element57 random unnecessary data
> random unnecessary data random unnecessary data Element105 more and more
> random unnecessary data
>
> etc
>
> So I'd like to search for "Element" and get "Element105" for example. Is
> there an elegant way of doing this with regular expressions in Groovy?

    def str = """
    your multiline String example
    from above
    """
    (str =~ /Element\d+/).each { println it }

should print:

    Element1
    Element2
    Element57
    Element105

If you're after number identifiers, say '2' in 'Element2', this should
do the trick:

    (str =~ /Element(\d+)/).each { println it[1] }


Cheers,
Dinko

>
> Any help appreciated!
>
> Regards,
> Dave

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[Dave McGee]

Woa, thanks Dinko!

On 22 February 2012 17:17, Dinko Srkoc <[hidden email]> wrote:

On 23 February 2012 01:16, Dave McGee <[hidden email]> wrote:
> Hi there,
>
> I have to deal with a String and try get a number identifier out of the
> String after the word "Element" has occurred.
>
> Some examples I am dealing with appear as follows:
>
> random unnecessary data Element1 random unnecessary data
> more random unnecessary data Element2 random unnecessary data
> ..
> more and more random unnecessary data Element57 random unnecessary data
> random unnecessary data random unnecessary data Element105 more and more
> random unnecessary data
>
> etc
>
> So I'd like to search for "Element" and get "Element105" for example. Is
> there an elegant way of doing this with regular expressions in Groovy?

   def str = """
   your multiline String example
   from above
   """
   (str =~ /Element\d+/).each { println it }

should print:

   Element1
   Element2
   Element57
   Element105

If you're after number identifiers, say '2' in 'Element2', this should
do the trick:

   (str =~ /Element(\d+)/).each { println it[1] }


Cheers,
Dinko

>
> Any help appreciated!
>
> Regards,
> Dave

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--
Regards,
Dave