42_ft_printf/ft_skipflag.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_skipflag.c                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/10/12 14:47:52 by cchauvet          #+#    #+#             */
/*   Updated: 2022/10/12 16:14:07 by cchauvet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "ft_printf.h"

int	ft_skipflag(const char *str)
{
	size_t	i;

	i = 0;
	if (str[i] != '%')
		return (0);
	i++;
	if (str[i] == '\0')
		return (-1);
	while (ft_isdigit(str[i]))
		i++;
	if (ft_isarg(str[i]))
		return (i + 1);
	return (0);
}