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RANK03/PRINTF/README.md

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+# PRINTF
+
+## INFORMATION/INFORMAÇÃO
+
+Write a function named `ft_printf` that will mimic the real printf but will
+manage only the following conversions:
+
+Esccreva uma função chamada `ft_printf` que vai imitar a printf real mas só vai
+tratar as seguintes conversões:
+
+```text
+s (string)
+d (decimal)
+x (lowercase hexadecimal)
+```
+
+## FUNCTIONS/FUNÇÕES
+
+`malloc, free, write, va_start, var_arg, va_copy and va_end`
+
+## PROTOTYPE
+
+```c
+int ft_printf(const char *, ...)
+```

RANK03/PRINTF/ft_printf.c

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+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_printf.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: adantas- <[email protected]>    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2024/06/25 14:43:17 by adantas-          #+#    #+#             */
+/*   Updated: 2024/06/27 11:28:00 by adantas-         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+static int	putstr(char **start, char *end);
+static int	expand_args(va_list args, char **fmt, char **walk);
+static int	print_str(char *str);
+
+int	ft_printf(const char *fmt, ...)
+{
+	int		printed;
+	char	*walk;
+	va_list	args;
+
+	if (fmt == 0)
+		return (-1);
+	va_start(args, fmt);
+	printed = 0;
+	for (walk = (char *)fmt; *walk != 0; walk++) {
+		if (*walk == '%') {
+			printed += putstr(&fmt, walk);
+			walk++;
+			if (*walk == 0)
+				break;
+			printed += expand_args(args, &fmt, &walk);
+		}
+	}
+	if (walk != fmt)
+		printed += putstr(&fmt, walk);
+	va_end(args);
+	return (printed);
+}
+
+static int	putstr(char **start, char *end)
+{
+	size_t	size;
+
+	size = *start - end;
+	size = write(STDOUT_FILENO, *start, size);
+	*start = end;
+	return ((int)size);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+// TODO LATER
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+static int	expand_args(va_list args, char **fmt, char **walk)
+{
+	int	size = 0;
+
+	if (**walk == 's') {
+		(*walk)++;
+		size = print_str(va_arg(args, char *));
+	}
+	else if (**walk == 'd') {
+		(*walk)++;
+		size = print_digit(va_arg(args, int));
+	}
+	else if (**walk == 'x') {
+		(*walk)++;
+		size = print_hexadecimal(va_arg(args, unsigned int));
+	}
+	else {
+		(*walk)++;
+		size = putstr(fmt, *walk);
+	}
+	*fmt = *walk;
+	return (size);
+}
+
+static int	print_str(char *str)
+{
+	int	i = 0;
+
+	while (str[i] != 0)
+		++i;
+	return (write(STDOUT_FILENO, str, i));
+}

RANK03/README.md

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+# CHOICES/ESCOLHAS
+
+⭕ ft_printf  
+❌ get_next_line