a question about REGEXP

["B. Li" <cs...@126.com>]

Hi All,


I have a question about REGEXP. I would like to extract a digit (e.g. the third one) in a number (NUM). Could I use REGEXP to get the result of a matched group (something like NUM{REGEXP("^\\d\\d(\\d)")})?


Any hint would be greatly appreciated! Thanks in advance!


Baoli

Re: a question about REGEXP

[Peter Klügl <pe...@averbis.com>]

Hi,


the REGEXP condition is only a boolean function without "side effects".


You could solve your use case in Ruta with simple regex rules. You need
to use some rules which do not depend on annotations for matching in
order to create smaller annotations. Something like:

DECLARE ThirdDigitInNum;

NUM -> {"^\\d\\d(\\d)" -> 1 = ThirdDigitInNum;};


Best,


Peter

Am 20.09.2019 um 10:21 schrieb B. Li:
> Hi All,
>
>
> I have a question about REGEXP. I would like to extract a digit (e.g. the third one) in a number (NUM). Could I use REGEXP to get the result of a matched group (something like NUM{REGEXP("^\\d\\d(\\d)")})?
>
>
> Any hint would be greatly appreciated! Thanks in advance!
>
>
> Baoli
>
>
>
-- 
Dr. Peter Klügl
R&D Text Mining/Machine Learning

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