Rename all ft_vprintf_*.c to ft_va_*.c

libftprintf/ft_va_escape.c

@@ -0,0 +1,84 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_va_escape.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: gbaconni@student.42lausanne.ch             +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2022/04/17 22:35:03 by gbaconni          #+#    #+#             */
+/*   Updated: 2022/04/29 14:34:51 by gbaconni         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftprintf.h"
+
+static char		ft_unescape_char(const char c);
+static size_t	ft_unescape_len(const char *str);
+
+int	ft_va_escape(const char *format, va_list ap)
+{
+	int	ret;
+
+	(void) ap;
+	ret = ft_putchar(ft_unescape_char(*format));
+	return (ret);
+}
+
+char	*ft_unescape(const char *str)
+{
+	char	*s;
+	void	*ptr;
+
+	s = (char *) ft_calloc(ft_unescape_len(str) + 1, sizeof(char));
+	if (s == NULL)
+		return (NULL);
+	ptr = s;
+	while (*str != '\0')
+	{
+		if (*str == '\\')
+			*s++ = ft_unescape_char(*++str);
+		else
+			*s++ = *str;
+		str++;
+	}
+	*s = '\0';
+	s = ptr;
+	return (s);
+}
+
+static char	ft_unescape_char(const char c)
+{
+	if (c == 'a')
+		return ('\a');
+	else if (c == 'b')
+		return ('\b');
+	else if (c == 't')
+		return ('\t');
+	else if (c == 'n')
+		return ('\n');
+	else if (c == 'v')
+		return ('\v');
+	else if (c == 'f')
+		return ('\f');
+	else if (c == 'r')
+		return ('\r');
+	else if (c == 'e')
+		return ('\033');
+	else
+		return (c);
+}
+
+static size_t	ft_unescape_len(const char *str)
+{
+	size_t	len;
+
+	len = 0;
+	while (*str != '\0')
+	{
+		if (*str == '\\')
+			str++;
+		len++;
+		str++;
+	}
+	return (len);
+}