在ISO C ++中对i18n和L10n有什么好的参考吗？

Question

There is a header (" < locale > ") in Standard ISO C++.

Is there any good references for Internationalization and localization in ISO C++?

Answer 1

The best sources I know are:

• Standard C++ IOStreams and Locales by Langer and Kraft (it has a tutorial part and a more reference part)

• the appendix in some version of the third edition of The C++ Programming Language by Stroustrup (which is also available online ) is more a user guide than a reference

• the relevant section in the standard is only a reference and not suitable as a user guide.

Answer 2

No.

There are references on how to use C++ streams and the locale facets... but ISO C++ does not provide a way for true Internalization/Localization.

The subject is much more difficult than it appears, because some languages have arcane rules

• in Greek, the tolower method would require looking at the whole word, instead of just the current character because toupper is not injective.
• in Spanish, ll is a letter itself (although two distinct tokens), with its own place in the alphabet.

And I won't even start on the ordinals in Polish...

If you really want proper I18n/L10n in C++, you may turn toward the ICU library, which despite its C-ish interface, is the de-facto standard. For translation of content, you may want to look at GetText (a GNU project). The two can be combined to obtain both translation and manipulation of internationalized resources, like translating a list of items and rendering it sorted alphabetically.

Answer 3

这是在线参考手册。