[boost] Re: Any interest in adding unicode support to boost?

From: David Abrahams (dave_at_[hidden])
Date: 2004-10-22 12:25:19

Miro Jurisic <macdev_at_[hidden]> writes:

> In article <uoeiuu4n6.fsf_at_[hidden]>,
>  David Abrahams <dave_at_[hidden]> wrote:
>
>> Is this going to be illegal for most fs, then?
>> 
>>    std::copy(
>>         std::istream_iterator<char>(f), std::istream_iterator<char>(),
>>         std::back_inserter(my_utf8_string));
>> 
>> I think it pretty much has to work.
>
> I think this is a red herring. A UTF-8 string is not a sequence of chars, nor is 
> every char convertible to a UTF-8 char, so why should this work any more than
>
> vector<void*>     my_vector;
>
>     std::copy(
>          std::istream_iterator<char>(f), std::istream_iterator<char>(),
>          std::back_inserter(my_vector));
>
> ?
>
>
> OTOH, A UTF-8 string is a sequence of Unicode chars, so what should work is:
>
>     std::copy(
>          std::istream_iterator<unicode_char>(f), 
> std::istream_iterator<unicode_char>(),
>          std::back_inserter(my_utf8_string));
>
> with the semantics that every time you hit the iterator, an entire unicode 
> character is read off the stream and appended to the string.

Okay.

-- 
Dave Abrahams
Boost Consulting
http://www.boost-consulting.com