Textmarker/Ruta - negative look behind/ahead

[Ar...@bka.bund.de]

Hello!

Is there a mechanism like negative look behind or negative look ahead in Ruta?

Cheers,
Armin

Re: Textmarker/Ruta - negative look behind/ahead

[Peter Klügl <pk...@uni-wuerzburg.de>]

Hi,

no, there is no direct negative match support (actually, there has been
one, but it was removed).

What you can do is just use the positive matches with additional
conditions, e.g., something like:

Person ANY{-STARTSWITH(Org)}; // additional rule element

Person{-NEAR(Org, 0, 4, true)}; // with additional condition

Person{-NEAR(Org, 0, 4, false)}; // with additional condition

A negative lookahead with an additional rule element is a bit more
complicated because of the matching strategy. You could activate dynamic
anchoring in order to avoid inefficient matches.

Document{-> DYNAMICANCHORING(true)};
ANY{-ENDSWITH(Org)} Person ; // additional rule element

I hope this helps. Just let me know if I misinterpreted your question.

Best,

Peter

On 08.05.2013 08:42, Armin.Wegner@bka.bund.de wrote:
> Hello!
>
> Is there a mechanism like negative look behind or negative look ahead in Ruta?
>
> Cheers,
> Armin