Unicode Support for PDA

Question

We are trying to Localize PDA using J2ME toolkit. Do the PDA's support unicode? Could you help me which models do and which don't? Is is possible to install Unicode fonts in a PDA device? Any tutorials would be praised. We have various emulators including Palm OS emulator.
Thanking you in advance,
Kushal

Answer 1

It's not what you describe, but here is more detail on what I'm doing.
This an example of the value string I'm storing. It's a simple xml object, converted to a unicode string, encoded in utf-8:
u'<d cdt="1267569920" eml="[email protected]" nm="\u3059\u3053\u3099\u304f\u597d\u304d\u306a\u4e16\u754c" pwd="2689367b205c16ce32ed4200942b8b8b1e262dfc70d9bc9fbc77c49699a4f1df" sx="M" tx="000000000" zp="07030" />'
The nm attribute is Japanese text: すごく好きな世界
So when I add a secondary index on nm, my callback function is an xml parser which returns the value of a given attribute:
Generically it's this:
def callbackfn (attribute):
"""Define how the secondary index retrieves the desired attribute from the data value"""
return lambda primary_key, primary_data: xml_utils.parse_item_attribute(primary_data, attribute)
And so for this specific attribute ("nm"), my callback function is:
callbackfn('nm')
As I said in my original post, if I add this the the db, I get this type error:
TypeError: DB associate callback should return DB_DONOTINDEX/string/list of strings.
But when I do not place a secondary index on "nm", the type error does not occur.
So that's consistent with what Sandra wrote in the other post, i.e.:
"Berkeley DB never operates on the value part of a record. Values are simply payload, to be stored with keys and reliably delivered back to the application on demand."
My guess is that I need to add an additional utf-8 encoding or decoding to the callback function, or else define a custom comparsion function so the callback will know what to do with the nm attribute value, but I'm not sure what exactly.