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C_02/git_todo/ex11/ft_putstr_non_printable.c

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_putstr_non_printable.c                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni <marvin@42lausanne.ch>            +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2021/08/11 11:29:09 by gbaconni          #+#    #+#             */
+/*   Updated: 2021/08/12 11:40:23 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+#include <stdio.h>
+
+// for i in {0..127}; do printf "%02x" $i; done
+void	ft_putstr_non_printable(char *str)
+{
+	const char	*hex = "\
+000102030405060708090a0b0c0d0e0f\
+101112131415161718191a1b1c1d1e1f\
+202122232425262728292a2b2c2d2e2f\
+303132333435363738393a3b3c3d3e3f\
+404142434445464748494a4b4c4d4e4f\
+505152535455565758595a5b5c5d5e5f\
+606162636465666768696a6b6c6d6e6f\
+707172737475767778797a7b7c7d7e7f";
+
+	while (*str != '\0')
+	{
+		if (*str >= ' ' && *str != '~' + 1)
+			write(1, str, 1);
+		else
+		{
+			write(1, "\\", 1);
+			write(1, hex + *str * 2, 2);
+		}
+		str++;
+	}
+}