I've downloaded and compiled icu.c according to the instructions in
the included README (though I had to add -fPIC to the compiler options).
Now, when searching a table, I'm not getting the kind of
diacritic-insensitive behavior I was expecting:
sqlite> .load lib/libSQLiteICU.so
sqlite> select * from owner where firstname like '%dré%';
id firstname last emai phon netid
---- ------------- ---- ---- ---- -------------
2 André-Marie Ampère amp...@example.com 555-2222 ampere
sqlite> select * from owner where firstname like '%dre%';
I expected both statements to return the same result. Am I
overlooking something or do I misunderstand the capabilities of ICU's
"unicode-aware LIKE operator"?
To get the diacritic-insensitive behavior you're after, you can follow
previous advice and implement the Unicode Collation Algorithm.
Alternatively and if you're ready to accept some cut corners, you can
try a small SQLite extension I wrote to this effect. It contains a
fair range of Unicode-aware string functions and contrary to ICU,
focusses on locale-independant behavior (which was what I needed at the
time).
It uses simplified Unicode v5.1 tries for upper, lower, title, proper
cases, unfolding, unaccenting, various collations, fuzzy compare and
much more (LIKE, GLOB, ...). It works decently well with norm-C
strings but will give surprising results with other forms of
normalization. It's faster than ICU/UCA and has a much smaller
footprint (~180Kb).
It comes as an archive with public domain C source code and ready to
use Win32 DLL so that you can try it using a third-party SQLite manager
(e.g. SQLite Expert) without having to write a single line of code or
compile anything tricky.
Discussion of all functions can be found at top of the source file.
Download <http://dl.dropbox.com/u/26433628/unifuzz.zip>here anytime.
I always appreciate when people report bugs and/or usefulness for
specific languages.
_______________________________________________
sqlite-users mailing list
sqlite-users@sqlite.org
http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
