The Case Against Autodecode

[Andrei Alexandrescu via Digitalmars-d]

On 06/02/2016 04:27 PM, Walter Bright wrote:
> On 6/2/2016 12:34 PM, deadalnix wrote:
>> On Thursday, 2 June 2016 at 19:05:44 UTC, Andrei Alexandrescu wrote:
>>> Pretty much everything. Consider s and s1 string variables with possibly
>>> different encodings (UTF8/UTF16).
>>>
>>> * s.all!(c => c == 'ö') works only with autodecoding. It returns
>>> always false
>>> without.
>>>
>>
>> False. Many characters can be represented by different sequences of
>> codepoints.
>> For instance, ê can be ê as one codepoint or ^ as a modifier followed
>> by e. ö is
>> one such character.
>
> There are 3 levels of Unicode support. What Andrei is talking about is
> Level 1.
>
> http://unicode.org/reports/tr18/tr18-5.1.html

Apparently I'm not the only idiot. -- Andrei