[CWB] Regular expressions with word groups

Andrew Nelson an.linguist at gmail.com
Tue Jul 28 19:41:40 CEST 2020


Hey Josep,

I'm fairly sure you just use ! if you're not testing a specific annotation.
Place ! before the left parenthesis of the group you're trying to test. So
if you're trying to test the negation of that entire group, just add ! to
the front of it. See 2.6 in the CQP Tutorial.

All the best,

Andrew



On Tue, Jul 28, 2020 at 11:15 AM Josep M. Fontana <josepm.fontana at upf.edu>
wrote:

> Hi,
>
> I don't know whether this is the right forum to ask this particular kind
> of question but I figure there are enough people here with sufficient
> experience to lend me a hand with this problem. If you cannot answer the
> question but you can point me to some other forum/group where I can find
> help, I would appreciate it.
>
> So, I have the following regular expression to identify a set of
> expressions that can appear in a particular position in the text. What I
> would like to do is to create the negation of this regular expression.
> That is, any string/expression/group of expressions that does NOT
> contain the expressions in these groups.
>
> I know how to use the != operator for a particular item (word, pos,
> lemma) but where would one insert this operator to have scope over the
> whole group of expressions that match this pattern? Thanks in advance.
>
> (([(pos="S.*") &
>
> (word="d.*")][word=".*el"][word="ca[buv]allo.*"])|[word="entierra"]|([word="en"][word="tierra"]))
>
>
> Josep M.
>
>
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