xhartae/chapters/chapter_3.c

/*
Copyright (c) 2023 : Ognjen 'xolatile' Milan Robovic

Xhartae is free software! You will redistribute it or modify it under the terms of the GNU General Public License by Free Software Foundation.
And when you do redistribute it or modify it, it will use either version 3 of the License, or (at yours truly opinion) any later version.
It is distributed in the hope that it will be useful or harmful, it really depends... But no warranty what so ever, seriously. See GNU/GPLv3.
*/

#ifndef CHAPTER_3_SOURCE
#define CHAPTER_3_SOURCE

#include "chapter_3.h"

static void print_colour (char colour_id) {
	switch (colour_id) {
		case '/': out ("/", 1);                                   break;
		case '0': terminal_colour (COLOUR_GREY,   EFFECT_BOLD);   break;
		case '1': terminal_colour (COLOUR_RED,    EFFECT_BOLD);   break;
		case '2': terminal_colour (COLOUR_GREEN,  EFFECT_BOLD);   break;
		case '3': terminal_colour (COLOUR_YELLOW, EFFECT_BOLD);   break;
		case '4': terminal_colour (COLOUR_BLUE,   EFFECT_BOLD);   break;
		case '5': terminal_colour (COLOUR_PINK,   EFFECT_BOLD);   break;
		case '6': terminal_colour (COLOUR_CYAN,   EFFECT_BOLD);   break;
		case '7': terminal_colour (COLOUR_WHITE,  EFFECT_BOLD);   break;
		case '-': terminal_colour (COLOUR_WHITE,  EFFECT_NORMAL); break;
		default:  terminal_colour (COLOUR_WHITE,  EFFECT_NORMAL); break;
	}
}

static void print_format (char format_id, va_list argument_list) {
	switch (format_id) {
		case '%': {
			out ("%", 1);
		} break;
		case 'i': {
			int integer;
			integer = va_arg (argument_list, int);
			echo (number_to_string (integer));
		} break;
		case 'f': {
			double ieee754;
			ieee754 = va_arg (argument_list, double);
			echo (number_to_string ((int) ieee754));
		} break;
		case 's': {
			char * string;
			string = va_arg (argument_list, char *);
			echo (string);
		} break;
		default: {
			out ("?", 1);
		} break;
	}
}

void print (char * format, ...) {
	va_list argument_list;

	int offset, length;

	length = string_length (format);

	va_start (argument_list, format);

	for (offset = 0; offset != length; ++offset) {
		if (format [offset] == '/') {
			++offset;
			print_colour (format [offset]);
		} else if (format [offset] == '%') {
			++offset;
			print_format (format [offset], argument_list);
		} else {
			out (& format [offset], 1);
		}
	}

	va_end (argument_list);
}

void file_print (int file, char * format, ...) {
	(void) file;
	(void) format;
	return;
}

void string_print (char * string, char * format, ...) {
	(void) string;
	(void) format;
	return;
}

#endif