ft_printf/hex_type.c at master · pgomez-a/ft_printf · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   hex_type.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: pgomez-a <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/03/11 08:44:17 by pgomez-a          #+#    #+#             */
/*   Updated: 2021/03/15 08:58:32 by pgomez-a         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "ft_printf.h"

static void	man_zero(char **itoa, char **pre)
{
	if (**pre == '0' || **pre == '\0')
	{
		free(*itoa);
		(*itoa) = ft_strdup("");
	}
	else if (**pre != '-')
		(**itoa) = ' ';
}

static void	man_neg_pre(char **itoa, char **pre)
{
	char	*aux;
	char	*temp;
	int		num_p;
	int		len_i;

	aux = ft_strdup(*itoa + 1);
	num_p = ft_atoi(*pre);
	len_i = ft_strlen(aux);
	while (num_p > len_i)
	{
		temp = aux;
		aux = ft_strjoin("0", aux);
		free(temp);
		num_p--;
	}
	temp = *itoa;
	(*itoa) = ft_strjoin("-", aux);
	free(temp);
	free(aux);
}

static int	hex_pre(char **itoa, char **pre)
{
	char	*temp;
	int		num_p;
	int		len_i;

	if (ft_isdigit(**itoa) && ft_atoi(*itoa) == 0
		&& (**pre <= '0' || **pre > '9'))
		man_zero(itoa, pre);
	else if (**itoa == '-')
		man_neg_pre(itoa, pre);
	else
	{
		num_p = ft_atoi(*pre);
		len_i = ft_strlen(*itoa);
		while (num_p > len_i)
		{
			temp = *itoa;
			(*itoa) = ft_strjoin("0", *itoa);
			free(temp);
			num_p--;
		}
	}
	if (ft_strchr(*pre, '-'))
		return (0);
	return (1);
}

static void	convert_to_lower(unsigned int num, char c, char **hextoa)
{
	int	len;

	ft_hextoa(num, hextoa);
	if (c == 'x')
	{
		len = 0;
		while ((*hextoa)[len])
		{
			(*hextoa)[len] = ft_tolower((*hextoa)[len]);
			len++;
		}
	}
}

void	pf_find_hex(va_list *ap, char c, char **width, int **result)
{
	char			*hextoa;
	char			*pre;
	int				verif;
	unsigned int	num;

	num = va_arg(*ap, unsigned int);
	convert_to_lower(num, c, &hextoa);
	pre = ft_strchr(*width, '.');
	verif = 0;
	if (pre)
	{
		(*pre) = '\0';
		pre++;
		verif = hex_pre(&hextoa, &pre);
	}
	if (ft_strchr(*width, '-'))
		man_neg_width(&hextoa, width, result);
	else
		man_pos_width(verif, &hextoa, width, result);
	free(hextoa);
}