[CWB] Any way to filter out some preceding tokens in a CQP query?

[Ray Wu]

Some clarification.

I used  a:[] [pos="VB.*"] "that" [:pos!= "JJ.*| N.*":] :: a.pos!="N.*"   and it does help filter out all nouns preceding the token "that" but the label "a" inserts itself as part of the query result so that seems not be a neat solution. What is intended for in my previous post is something like a zero-width assertion (but in the front of a query expression) .


Best,
Ray


At 2012-10-16 21:42:56,"Ray Wu" <liangpingwu at 126.com> wrote:

Hi all,

CQP's zero-width assertions are quite handy when we want to filter out some tokens after a CQP query. A typical example is given in Stephen's "Inside the IMS Corpus Workbench" presentation to find clausal verb complement:
[pos="VB.*"] "that" [:pos!= "JJ.*| N.*":]

My question is: is there a way in CQP to limit the content BEFORE a CQP query? I guess that mechanism might be equally handy in other situations.

Thanks for any input.

Best
Ray









Best,
Ray



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