如何在C语言中将Unicode代码点打印为字符? [英] How to print Unicode codepoints as characters in C?

问题描述

我有一个 uint32_t 元素数组，每个元素存储一个非拉丁Unicode字符的代码点.如何在控制台上打印它们或将它们以UTF-8编码字符存储在文件中?我知道它们可能无法在控制台上正确呈现，但是如果我在兼容的编辑器中将其打开，它们应该可以正常显示.

I have an array of uint32_t elements that each store a codepoint for a non-latin Unicode character. How do I print them on the console or store them in a file as UTF-8 encoded characters? I understand that they may fail to render properly on a console, but they should display fine if I open them in a compatible editor.

我尝试使用 wprintf(L％lc"，UINT32_T_VARIABLE)和 fwprintf(FILE_STREAM，L％lc"，UINT32_T_VARIABLE)，但无济于事.

I have tried using wprintf(L"%lc", UINT32_T_VARIABLE), and fwprintf(FILE_STREAM, L"%lc", UINT32_T_VARIABLE) but to no avail.

推荐答案

您必须首先使用以下选项选择正确的语言环境:

You must first select the proper locale with:

#include <locale.h>

setlocale(LC_ALL, "C.UTF-8");

或

setlocale(LC_ALL, "en_US.UTF-8");

然后使用％lc 格式的 printf 或 fprintf :

printf("%lc", UINT32_T_VARIABLE);

这仅适用于足够小以适合 wchar_t 的Unicode代码点.对于更完整和可移植的解决方案，您可以自己实现将Unicode转换为UTF-8的操作，这并不是很难.

This will work only for Unicode code points small enough to fit in a wchar_t. For a more complete and portable solution, you may nee to implement the Unicode to UTF-8 conversion yourself, which is not very difficult.

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