[Exist-open] Lucene queries: "and" queries ; queries with "regex"

[Lmhelp2 <lm...@wa...>]

Hi,

Thank you for reading my post.

I am trying to write "Lucene" queries which work...
I have been working with:
http://exist-db.org/lucene.html#N10352

My XML source contains "<text>" elements.

======================================================
AND QUERY
======================================================
I want to get all the "<text>" elements which contain
the three words "word1", "word2" and "word3" at the
same time ("and" query). I have tried the following:
------------------------------------------------------
<query>
    <bool>
        <term occur="must">word1</term>
        <term occur="must">word2</term>
        <term occur="must">word3</term>
    </bool>
</query>
------------------------------------------------------
but I didn't get the expected results...

======================================================
QUERY WITH REGEX
======================================================
I also wanted to perform a query containing a regular
expression. So I tried the following:

------------------------------------------------------
<query>
    <term>word1</term>
    <regex>#[\S\s]*#[\S\s]*#</regex>
</query>
------------------------------------------------------
Nota:
For example (if I'm not mistaken):
#[\S\s]*#[\S\s]*# would normally match:

#
This is a sentence1.
#This is a sentence2.#
------------------------------------------------------
But:
1) It didn't work.
2) I wish it could be a "and" query: I want both
   "word1" and a match for the "regex" to be present
   in the "<text>" element.
2) There seam to be a problem with the characters
   '{', '}', '[', ']' which are special characters in 
   "regexes" and the escape character '\'.
   (In fact, I put the <query> ... </query> strings into
   Java Strings...)


Can you help me with writing the correct queries?

Thanks and all the best,
--
Léa
-- 
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