C语言 UNIX 终端应用程序中的彩色文本
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Color text in terminal applications in UNIX
提问by Nisanio
I started to write a terminal text editor, something like the first text editors for UNIX, such as vi. My only goal is to have a good time, but I want to be able to show text in color, so I can have syntax highlighting for editing source code.
我开始编写终端文本编辑器，类似于 UNIX 的第一个文本编辑器，例如 vi。我唯一的目标是玩得开心，但我希望能够以彩色显示文本，这样我就可以在编辑源代码时突出显示语法。
How can I achieve this? Is there some special POSIX API for this, or do I have to use ncurses? (I'd rather not)
我怎样才能做到这一点？是否有一些特殊的 POSIX API，或者我必须使用 ncurses？（我宁愿不）
Any advice? Maybe some textbooks on the UNIX API?
有什么建议吗？也许有一些关于 UNIX API 的教科书？
回答by karlphillip
This is a little C program that illustrates how you could use color codes:
这是一个小 C 程序，用于说明如何使用颜色代码：
#include <stdio.h>
#define KNRM "\x1B[0m"
#define KRED "\x1B[31m"
#define KGRN "\x1B[32m"
#define KYEL "\x1B[33m"
#define KBLU "\x1B[34m"
#define KMAG "\x1B[35m"
#define KCYN "\x1B[36m"
#define KWHT "\x1B[37m"
int main()
{
printf("%sred\n", KRED);
printf("%sgreen\n", KGRN);
printf("%syellow\n", KYEL);
printf("%sblue\n", KBLU);
printf("%smagenta\n", KMAG);
printf("%scyan\n", KCYN);
printf("%swhite\n", KWHT);
printf("%snormal\n", KNRM);
return 0;
}
回答by David Guyon
Different solution that I find more elegant
我发现更优雅的不同解决方案
Here's another way to do it. Some people will prefer this as the code is a bit cleaner. There are no %sand a RESETcolor to end the coloration.
这是另一种方法。有些人会更喜欢这个，因为代码更简洁一些。没有%s和RESET结束着色的颜色。
#include <stdio.h>
#define RED "\x1B[31m"
#define GRN "\x1B[32m"
#define YEL "\x1B[33m"
#define BLU "\x1B[34m"
#define MAG "\x1B[35m"
#define CYN "\x1B[36m"
#define WHT "\x1B[37m"
#define RESET "\x1B[0m"
int main() {
printf(RED "red\n" RESET);
printf(GRN "green\n" RESET);
printf(YEL "yellow\n" RESET);
printf(BLU "blue\n" RESET);
printf(MAG "magenta\n" RESET);
printf(CYN "cyan\n" RESET);
printf(WHT "white\n" RESET);
return 0;
}
This program gives the following output:
该程序提供以下输出：
Simple example with multiple colors
具有多种颜色的简单示例
This way, it's easy to do something like:
这样，很容易执行以下操作：
printf("This is " RED "red" RESET " and this is " BLU "blue" RESET "\n");
This line produces the following output:
此行产生以下输出：
回答by nmichaels
You probably want ANSI color codes. Most *nix terminals support them.
您可能需要ANSI 颜色代码。大多数 *nix 终端都支持它们。
回答by Vivin Paliath
Use ANSI escape sequences. This articlegoes into some detail about them. You can use them with printfas well.
使用 ANSI 转义序列。本文详细介绍了它们。您也可以使用它们printf。
