C ++字符串：UTF-8或16位编码？ [英] C++ strings: UTF-8 or 16-bit encoding?

问题描述

我仍在尝试决定我的（住家）项目是否应使用 UTF-8 < a> strings（根据std :: string在必要时使用附加的UTF-8特定函数实现）或一些16位字符串（实现为std :: wstring）。该项目是一个编程语言和环境（如VB，它是两者的组合）。

I'm still trying to decide whether my (home) project should use UTF-8 strings (implemented in terms of std::string with additional UTF-8-specific functions when necessary) or some 16-bit string (implemented as std::wstring). The project is a programming language and environment (like VB, it's a combination of both).

有一些愿望/约束：

• 如果它可以在有限的硬件上运行，例如内存有限的计算机，这将是很酷。


• 我想让代码运行在Windows，Mac和（如果资源允许）Linux。


• 我将使用 wxWidgets 作为我的GUI层，但我想要与该工具包交互的代码限制在代码库的一角（我将有非GUI可执行文件）。


• 在处理用户可见文本和应用程序的数据时，避免使用两种不同类型的字符串。

• It would be cool if it could run on limited hardware, such as computers with limited memory.
• I want the code to run on Windows, Mac and (if resources allow) Linux.
• I'll be using wxWidgets as my GUI layer, but I want the code that interacts with that toolkit confined in a corner of the codebase (I will have non-GUI executables).
• I would like to avoid working with two different kinds of strings when working with user-visible text and with the application's data.

m使用std :: string，目的是仅在必要时使用UTF-8操作函数。

Currently, I'm working with std::string, with the intent of using UTF-8 manipulation functions only when necessary. It requires less memory, and seems to be the direction many applications are going anyway.

如果您推荐使用16位编码，请输入以下字符： UTF-16 ？ UCS-2 ？另一个？

If you recommend a 16-bit encoding, which one: UTF-16? UCS-2? Another one?

推荐答案

我会建议UTF-16任何种类的数据操作和UI。
Mac OS X和Win32 API使用UTF-16，与wxWidgets，Qt，ICU，Xerces和其他相同。
UTF-8可能更适合数据交换和存储。
请参见 http://unicode.org/notes/tn12/ 。

I would recommend UTF-16 for any kind of data manipulation and UI. The Mac OS X and Win32 API uses UTF-16, same for wxWidgets, Qt, ICU, Xerces, and others. UTF-8 might be better for data interchange and storage. See http://unicode.org/notes/tn12/.

但是无论你选择什么，我肯定会推荐使用UTF-8的std :: string只在必要时。

But whatever you choose, I would definitely recommend against std::string with UTF-8 "only when necessary".

一路用UTF-16或UTF-8，但不要混合和匹配，这是要求麻烦。

Go all the way with UTF-16 or UTF-8, but do not mix and match, that is asking for trouble.

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