[Zope3-dev] Bytes versus ASCII

[Egon Frerich]

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Gary Poster schrieb am 27.01.2006 21:40:

> 
> On Jan 27, 2006, at 5:16 AM, Christian Theune wrote:
> 
>> Hi,
>>
>> (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 this
>> 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.

Egon

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- --
Egon Frerich, Freudenbergstr. 16, 28213 Bremen

E-Mail: e.frerich at nord-com.net
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