parse_format.c

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   parse_format.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: kfujita <kfujita@student.42tokyo.jp>       +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/04/23 00:19:18 by kfujita           #+#    #+#             */
/*   Updated: 2023/05/03 20:20:49 by kfujita          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include <stdlib.h>
#include <limits.h>
#include <stdint.h>
#include "ft_printf_local.h"
 
t_list  *parse_format(const char *fmt, va_list *args)
{
    t_list  *p_ret;
    size_t  ret_len;
 
    p_ret = NULL;
    ret_len = 0;
    while (*fmt != '\0' && ret_len < INT_MAX)
    {
        if (*fmt == '%')
            ft_lstadd_back(&p_ret,
                ft_lstnew(parse_opt(&ret_len, (char **)&fmt, args)));
        else
            ft_lstadd_back(&p_ret,
                ft_lstnew(check_no_opt_str(&ret_len, (char **)&fmt, NULL)));
        if (p_ret == NULL || ft_lstlast(p_ret)->content == NULL)
            ret_len = UINTPTR_MAX;
    }
    if (ret_len >= INT_MAX)
        ft_lstclear(&p_ret, free);
    return (p_ret);
}