[CWB] Text-level restricted query error

Wed Sep 3 05:35:59 CEST 2025

Dear Stephanie,

In terms of CQP syntax and the management of CQPweb, we were wondering if
the *full CQP-syntax tutorial
<https://cwb.sourceforge.io/files/CQP_Tutorial/> *and the *CQPweb Admin
Manual* are the definitive sources of truth that we should be referring to.

Thank you once again for your invaluable guidance.

Best,
Min

On Wed, Sep 3, 2025 at 11:13 AM Min Qu <qumino2 at gmail.com> wrote:

> Dear Stephanie,
>
> It works perfectly following your guide! You are truly educating the CWB
> community, one query at a time, and our team has learned a great deal from
> your detailed and insightful reply.
>
>
> Best,
> Min
>
>
> On Wed, Sep 3, 2025 at 3:28 AM Stephanie Evert <stefanML at collocations.de>
> wrote:
>
>>
>> > I am encountering an error when I run the query `[lemma="run" &
>> text_author="Muir, John, 1838-1914"]` on our CQPweb.
>>
>> I assume that text_author is an s-attribute. In this case, you need a
>> different syntax to access its annotation
>>
>>         [lemma="run" & _.text_author="Muir, John, 1838-1914"]
>>
>> The "this" label _ refers to the current token and allows you to access
>> the values of s-attributes, which are only exposed through label
>> references.  I often find it more readable to specify metadata filters as a
>> global constraint, e.g.
>>
>>         [lemma="run"] :: match.text_author="Muir, John, 1838-1914"
>>
>> > Does anyone know why this error might be occurring?
>>
>> The error message is indeed a bit cryptic. The full explanation is that
>> bare references to s-attributes are allowed, but always return an integer
>> code that is 0 outside a region of the specified type, and nonzero inside.
>> This allows you to find tokens e.g. inside a <head> element with
>>
>>         [lemma="run" & head]
>>
>> or even the lemma "run" at the start of a sentence:
>>
>>         [lemma="run" & lbound(head)]
>>
>> where the builtin lbound() function tests appropriate bits of the integer
>> code.  Another use is to find any tokens in the corpus that are not wrapped
>> in an <s> element (assuming this should not happen).
>>
>>         [!s]
>>
>> In your query, text_author returns such an integer code, which cannot be
>> compared with a string value.
>>
>> Best,
>> Stephanie [educating the CWB community, one query at a time]
>> _______________________________________________
>> CWB mailing list
>> CWB at sslmit.unibo.it
>> http://liste.sslmit.unibo.it/mailman/listinfo/cwb
>>
>
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