minishell/stdme/src/printf/formatter/hex.c
2024-10-12 17:54:07 +02:00

66 lines
2.3 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* hex.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/16 18:16:16 by maiboyer #+# #+# */
/* Updated: 2024/10/12 17:52:40 by rparodi ### ########.fr */
/* */
/* ************************************************************************** */
#include "me/mem/mem.h"
#include "me/printf/formatter/utils.h"
#include "me/str/str.h"
#define HEX_INLINE_BUF 17
static void fill_hex(t_str out_buf, t_u64 num, t_const_str base)
{
t_usize i;
mem_set(out_buf, 0, HEX_INLINE_BUF);
out_buf[HEX_INLINE_BUF - 1] = 0;
i = 0;
while (i < HEX_INLINE_BUF - 1)
{
out_buf[HEX_INLINE_BUF - i - 2] = base[(num >> (4 * i) & 15)];
i++;
}
}
static void printf_x_common(t_printf_arg data, t_printf_func f,
t_const_str pretty, t_const_str base)
{
t_u64 value;
char inline_buffer[HEX_INLINE_BUF];
t_str start_num;
value = *(t_u64 *)data.argument;
inline_buffer[0] = '0';
inline_buffer[1] = '\0';
if (value)
fill_hex(inline_buffer, value, base);
start_num = &inline_buffer[0];
while (start_num[1] != '\0' && start_num[0] == '0')
start_num++;
if (value == 0)
data.extra.pretty = false;
handle_weird_precision_stuff(&data, (t_prec_strs){.out = &start_num,
.free_out = false, .pretty = (t_str *)&pretty}, value);
pad_and_stuff(
(t_pad_and_stuff_args){\
.fill_zero = 0, .fill = 0, .len = str_len(start_num), .pretty = (t_str)pretty, \
.pretty_len = 2, .str = start_num, .allow_zero_fill = true, .sign = NULL, \
.sign_len = 0, }, data, f);
}
void printf_x_up(t_printf_arg data, t_printf_func f)
{
printf_x_common(data, f, "0X", "0123456789ABCDEF");
}
void printf_x_low(t_printf_arg data, t_printf_func f)
{
printf_x_common(data, f, "0x", "0123456789abcdef");
}