[Zope3-dev] Bytes versus ASCII
gary at zope.com
Fri Feb 3 09:40:32 EST 2006
On Feb 3, 2006, at 4:00 AM, Egon Frerich wrote:
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> Gary Poster schrieb am 27.01.2006 21:40:
>> On Jan 27, 2006, at 5:16 AM, Christian Theune wrote:
>>> (this is about zope.schema)
>>> I assumed that the fields Bytes and ASCII have some distinction. The
>>> ASCII field explicitly checks for every character to have an ordinal
>>> value lower than 127.
>>> Bytes however does a cast in fromUnicode(u) that does str(u).
>>> This will
>>> break if there are non-ascii characters in the unicode string.
>>> Effectively this makes it an ASCII field as well.
>>> However, I don't know enough about the environment, so eventually
>>> is all good. When does the fromUnicode method get called?
>>> Everytime I
>>> use this field through zope.app.form or zope.formlib?
>> I think it might be leveraged elsewhere, but the big client AFAIK
>> is zcml.
> But zcml needs two types:
> - - unicode for title and description parameters (what is not the
> case in
> the actual version)
> - - bytes elsewere.
Hi Egon. I'm not sure I followed your message, but to clarify my
statement, I meant that the big client for the `fromUnicode` method
(of all schema fields) is zcml, though I'm pretty sure that it is
also used elsewhere. I was not talking about any field specifically.
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