[Zope-dev] Re: Escaping special characters in ZCTextIndex.QueryParser?
Dieter Maurer wrote:
Robert Casties wrote at 2007-11-25 19:32 +0100:
is it possible to escape parentheses in ZCTextIndex searches?
If not, why not and how can I do a simple search in an index bypassing
the QueryParser?
I fear nobody of us knows this.
Therefore, you must yourself look at the sources.
I had a quick look at the QueryParser source before but it wasn't
obvious to me. I will have a deeper look again.
If you need this feature and ZCTextIndex does not provide
it, then you may use a different text index.
I know that with TextIndexNG3 you can select different
parsers (among others a parser that does not interpret '(' and ')')
or provide your own one.
Is the parser for the search query also pluggable? I will have another
look at TextIndexNG.
I have an index where words can contain parentheses and I am unable to
enter a query for these words because the QueryParser interprets all
parentheses as search expression groupings.
Then, you will need to change the lexicon as well.
Usually, the lexicon breaks words at non alnum characters
(with a few exeptions).
I have my own splitter for the Lexicon so I think the right words are in
the index but I haven't been able to check because I can't search the
index...
Thanks
Robert
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[Zope-dev] Re: Escaping special characters in ZCTextIndex.QueryParser?
Robert Casties wrote: Hi, is it possible to escape parentheses in ZCTextIndex searches? Yes If not, why not and how can I do a simple search in an index bypassing the QueryParser? I said Yes :) I have an index where words can contain parentheses and I am unable to enter a query for these words because the QueryParser interprets all parentheses as search expression groupings. Enclosing the words with double quotes has not helped, neither have backslashes... You have to enclose your string with double quotes and then with single quote. So the parser gets the double quotes with the search string The parser does not interpret the string between double quotes. It works for me :) suppose you are searching for: my text (really good text) to search for txt = 'my text (really good text) to search for' brains = context.portal_catalog(searchableText=text) HTH Is there a way other than having to write a new ZCTextIndex? Thanks for any insight Robert ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope ) ___ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
