rawmode.c

#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include <ctype.h>
#include <stdio.h>

struct termios orig_termios;

void disableRawMode()
{
	tcsetattr(STDIN_FILENO, TCSAFLUSH, &orig_termios);
}

void enableRawMode() 
{
	tcgetattr(STDIN_FILENO, &orig_termios);
	atexit(disableRawMode);

	struct termios raw = orig_termios;
	raw.c_lflag &= ~(ECHO | ICANON);

	tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw);

}

int main()
{
	enableRawMode();

	int c;

	/*
	while (read(STDIN_FILENO, &c, 1) == 1 && c!= 'q')
	{
		// if (iscntrl(c)) {

			if (c == 0x7F){
				printf("%d\n", c);
			}
		else {
			printf("%d ('%c')\n", c, c);
			}
	}
	*/


	while ((c = getchar()) != EOF)
	{
		if (c == '	')
			printf("\\t");
		if (c == '\\')
			printf("\\\\");
		if (c == 0x7F)
			printf("backspace");
	}
	return 0;
}