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Re: Stregex question - extracting substring [message #87016 is a reply to message #87013]

Fri, 20 December 2013 07:53

PMan
Messages: 61
Registered: January 2011

Member

On Thursday, December 19, 2013 5:31:40 PM UTC-5, Phillip Bitzer wrote:
> OK, how about a STREGEX solution:
>
>
>
> str = ['xxxxxxx:yyy', 'xxxxxxx:yyyyyyy', 'x:yyyy'] ;define the string array
>
>
>
> yStrColon = STREGEX(str, ':.+$', /EXTRACT) ;get everything past the colon, including the colon
>
>
>
> yStr = STRMID(yStrColon, 1) ;strip the colon
>
>
>
> About that regular expression:
>
>
>
> : get the substring starting with the colon
>
> .+ get one or more instances of the "dot" (so, any character)
>
> $ anchor at the end of the string

I figured out my solution, just moments after my post (isn't that always the case??) Here is what I did, which is similar to Philip's approach:

I was starting with an array of strings, hence the indices at the end:
x = (stregex(splLines, ':(.*)$' , /extract, /sub))[1, *]

(x = (stregex(splLines, ':(.*)$' , /extract, /sub))[1] for a single string)

The () encapsulates what the /sub extracts and [1] index gets the subexpression only, the 0th element starts with the colon, which I did not want.

Thanks for the reply to my short-lived post!

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[Message index]

		Stregex question - extracting substring By: PMan on Thu, 19 December 2013 12:44
		Re: Stregex question - extracting substring By: John Correira on Thu, 19 December 2013 12:53
		Re: Stregex question - extracting substring By: Helder Marchetto on Thu, 19 December 2013 13:09
		Re: Stregex question - extracting substring By: Phillip Bitzer on Thu, 19 December 2013 14:31
		Re: Stregex question - extracting substring By: PMan on Fri, 20 December 2013 07:53

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