On Jan 25, 2008, at 7:26 AM, Myk Melez wrote:
Hi all,
I'm working to enable FTS3 in the next version of Firefox [1] so
that extenders can take advantage of it, although Firefox itself
isn't using it for the next release.
Given Firefox's international audience, it would be useful for FTS3
to support Unicode. We currently do this for upper(), lower(), and
LIKE by redefining them with sqlite3_create_function [2].
For FTS3 it seems like we'd have to redefine the tokenizer and
MATCH. Can that be done using sqlite3_create_function, and what's
the status of the international support mentioned in a previous
message on this list [3]?
Hi Myk,
The 'icu' and 'fts3' SQLite extensions can take advantage of the
ICU library to provide internationalization if it is available.
The ICU extension provides internationalized versions of upper(),
lower(), collation sequences and a REGEXP operator. Details
are available here:
http://www.sqlite.org/cvstrac/fileview?f=sqlite/ext/icu/README.txt
Fts3 has an API for creating new tokenizers. See here:
http://www.sqlite.org/cvstrac/fileview?f=sqlite/ext/fts3/
README.tokenizers
One of the example tokenizers uses the ICU library for localization.
See the same document for details. It is built if the
SQLITE_ENABLE_ICU macro is defined when fts3 is compiled.
Regards,
Dan.
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