On October 15, 2015 14:53:29 Konstantin Ritt <ritt...@gmail.com> wrote:
> 2015-10-15 11:00 GMT+03:00 Bubke Marco > <marco.bu...@theqtcompany.com<mailto:marco.bu...@theqtcompany.com>>: > On October 15, 2015 08:45:30 Knoll Lars > <lars.kn...@theqtcompany.com<mailto:lars.kn...@theqtcompany.com>> wrote: > >> On 14/10/15 23:51, "Bubke Marco" >> <marco.bu...@theqtcompany.com<mailto:marco.bu...@theqtcompany.com>> wrote: >> >>>On October 14, 2015 23:10:26 Thiago Macieira >>><thiago.macie...@intel.com<mailto:thiago.macie...@intel.com>> >>>wrote: >>>> Qt does not have to provide a comparator that operates on something >>>>other than >>>> its native string type. >>> >>>Isn't Qt a framework to help developers? Sorry your argumentation is >>>sounds not very empirical. >> >> Of course our aim should be to help developers. But there will always be >> some use cases which we will not cover. The question is whether this is >> one of them or not. > > Most file and network content is in utf 8, databases too. It has simply a > size and performance advantage for most cases. You have not so many cases > where you have pure Chinese signs in an text. Mostly it is an mixture. In > Linux, which is very important in embedded, utf 8 dominates ?he APIs. Ask > your self if we don't want support that. We could start simply and expand > slowly. If the standard library would support utf 8 collations on all > platforms very well we could skip it but today you have to do your own > solutions again and again. > > For everything but US-ASCII / Latin-1, UTF-8 isn't faster than UTF-16 (feel > free to compare their complexity against UTF-32). Do you have mesured it? Please no theoretical discussions. If you have larger texts you have annotations in ascii like XML. > And why "pure Chinese signs" again? Did you ever look into the Unicode's > Scripts.txt [1], for example? It clearly shows UTF-16 covers [almost] all > spoken languages, without any performance hits (in compare to UTF-8), and all > we have to pay is an extra byte per every Base Latin character (in compare to > UTF-8, again). Okay, again. Most text today is embedded in meta information and this information are very often ascii. Why do you think utf8 is used so widely?
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