Splited include like src/, Adding feature toggle protection in header

15 files changed, 793 insertions, 0 deletions

diff --git a/src/io/ft_printf/internals/convert.c b/src/io/ft_printf/internals/convert.c
new file mode 100644
index 0000000..398c754
--- /dev/null
+++ b/src/io/ft_printf/internals/convert.c
@@ -0,0 +1,122 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   printer.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/28 23:19:24 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/14 10:22:04 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include "libft.h"
+#include "ft_vasprintf.h"
+
+char	*convert(t_pformat *pformat, va_list ap)
+{
+	char			*str;
+
+	if (pformat == NULL)
+		return (NULL);
+	if (pformat->flags & FLAG_WIDTH_WILDCARD)
+	{
+		if (pformat->flags & FLAG_WIDTH_OVERWRITE)
+			(void)va_arg(ap, int);
+		else
+			pformat->width = va_arg(ap, int);
+		if (pformat->width < 0)
+		{
+			pformat->flags |= FLAG_MINUS;
+			pformat->width *= -1;
+		}
+	}
+	if (pformat->flags & FLAG_PRECISION_WILDCARD)
+		pformat->precision = va_arg(ap, int);
+	if ((str = convert_specifier(ap, pformat)) == NULL)
+		return (NULL);
+	return (str);
+}
+
+char	*convert_specifier(va_list ap, t_pformat *pformat)
+{
+	if (pformat->specifier == 'c')
+		return (convert_char(ap, pformat));
+	if (pformat->specifier == 's')
+		return (convert_str(ap, pformat));
+	if (pformat->specifier == 'p')
+		return (convert_ptr(ap, pformat));
+	if (pformat->specifier == 'd' || pformat->specifier == 'i')
+		return (convert_int(ap, pformat));
+	if (pformat->specifier == 'u')
+		return (convert_uint(ap, pformat));
+	if (pformat->specifier == 'x')
+		return (convert_hex(ap, pformat));
+	if (pformat->specifier == 'X')
+		return (convert_hex(ap, pformat));
+	if (pformat->specifier == '%')
+		return (convert_percent(ap, pformat));
+	if (pformat->specifier == 'n')
+		return (convert_written(ap, pformat));
+	else
+		return (convert_none(ap, pformat));
+	return (NULL);
+}
+
+char	*handle_width(t_pformat *pformat, char *str)
+{
+	char	*tmp;
+	int		len;
+	int		i;
+
+	if ((len = ft_strlen(str)) >= pformat->width)
+		return (str);
+	if ((tmp = (char*)malloc(sizeof(char) * (pformat->width + 1))) == NULL)
+		return (NULL);
+	if (pformat->flags & FLAG_MINUS)
+	{
+		i = len;
+		ft_strcpy(tmp, str);
+		while (i < pformat->width)
+			tmp[i++] = ' ';
+		tmp[i] = 0;
+	}
+	else
+	{
+		i = 0;
+		while (i <= pformat->width - len)
+			tmp[i++] = pformat->flags & FLAG_ZERO ? '0' : ' ';
+		ft_strcpy(tmp + i - 1, str);
+	}
+	free(str);
+	return (tmp);
+}
+
+char	*handle_precision(t_pformat *pformat, char *str)
+{
+	int		len;
+	char	*tmp;
+
+	if (pformat == NULL || str == NULL)
+		return (NULL);
+	if (ft_strchr("diuxX", pformat->specifier) && pformat->precision >= 0)
+		pformat->flags &= ~FLAG_ZERO;
+	len = ft_strlen(str);
+	if (pformat->precision == 0 && str[0] == '0')
+	{
+		free(str);
+		return (ft_strdup(""));
+	}
+	if (!ft_strchr("diuxXp", pformat->specifier) || len >= pformat->precision)
+		return (str);
+	if ((tmp = (char*)malloc(sizeof(char) * (pformat->precision + 1))) == NULL)
+		return (NULL);
+	ft_strcpy(tmp + pformat->precision - len, str);
+	while (pformat->precision-- > len)
+		tmp[pformat->precision - len] = '0';
+	free(str);
+	return (tmp);
+}
diff --git a/src/io/ft_printf/internals/convert_char.c b/src/io/ft_printf/internals/convert_char.c
new file mode 100644
index 0000000..c5f3a93
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_char.c
@@ -0,0 +1,53 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_char.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/30 23:22:29 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/05 23:44:42 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+static char	*handle_width_char(t_pformat *pformat, char *str)
+{
+	char	*tmp;
+	int		i;
+
+	pformat->size = 1;
+	if (1 >= pformat->width)
+		return (str);
+	if ((tmp = (char*)malloc(sizeof(char) * (pformat->width + 1))) == NULL)
+		return (NULL);
+	if (pformat->flags & FLAG_MINUS)
+	{
+		ft_memcpy(tmp, str, (i = 1) + 1);
+		while (i < pformat->width)
+			tmp[i++] = ' ';
+		tmp[i] = 0;
+	}
+	else
+	{
+		i = 0;
+		while (i <= pformat->width - 1)
+			tmp[i++] = pformat->flags & FLAG_ZERO ? '0' : ' ';
+		ft_memcpy(tmp + i - 1, str, 2);
+	}
+	free(str);
+	pformat->size = pformat->width;
+	return (tmp);
+}
+
+char		*convert_char(va_list ap, t_pformat *pformat)
+{
+	char	*str;
+
+	if ((str = ft_strnew(2)) == NULL)
+		return (NULL);
+	str[0] = va_arg(ap, int);
+	str[1] = '\0';
+	return (handle_width_char(pformat, str));
+}
diff --git a/src/io/ft_printf/internals/convert_hex.c b/src/io/ft_printf/internals/convert_hex.c
new file mode 100644
index 0000000..0464dc7
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_hex.c
@@ -0,0 +1,34 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_hex.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/30 23:23:06 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/05 23:58:59 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+char	*convert_hex(va_list ap, t_pformat *pformat)
+{
+	char					*str;
+	long long unsigned int	n;
+
+	n = length_modifier_unsigned_int(ap, pformat);
+	str = pformat->specifier == 'x' ? ITOA_HEX_LOW(n) : ITOA_HEX_UP(n);
+	str = handle_precision(pformat, str);
+	if (pformat->flags & FLAG_ZERO)
+	{
+		if (pformat->flags & FLAG_ALTERNATE && n != 0)
+			pformat->width -= 2;
+		str = handle_width(pformat, str);
+	}
+	if (pformat->flags & FLAG_ALTERNATE && n != 0)
+		str = ft_strjoin_free_snd(pformat->specifier == 'X' ? "0X" : "0x", str);
+	if (!(pformat->flags & FLAG_ZERO))
+		str = handle_width(pformat, str);
+	return (str);
+}
diff --git a/src/io/ft_printf/internals/convert_int.c b/src/io/ft_printf/internals/convert_int.c
new file mode 100644
index 0000000..2345f76
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_int.c
@@ -0,0 +1,40 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_int.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/30 23:29:53 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/06 00:00:09 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+char	*convert_int(va_list ap, t_pformat *pformat)
+{
+	int				is_neg;
+	long long int	n;
+	char			*str;
+
+	n = length_modifier_int(ap, pformat);
+	is_neg = n < 0;
+	str = ITOA_DEC(n);
+	if (is_neg)
+		ft_strcpy(str, str + 1);
+	str = handle_precision(pformat, str);
+	if (pformat->flags & FLAG_ZERO)
+	{
+		if (is_neg || pformat->flags & (FLAG_SIGNED | FLAG_SPACE))
+			pformat->width--;
+		str = handle_width(pformat, str);
+	}
+	if (is_neg)
+		str = ft_strjoin_free_snd("-", str);
+	else if (pformat->flags & (FLAG_SIGNED | FLAG_SPACE))
+		str = ft_strjoin_free_snd(pformat->flags & FLAG_SPACE ? " " : "+", str);
+	if (!(pformat->flags & FLAG_ZERO))
+		str = handle_width(pformat, str);
+	return (str);
+}
diff --git a/src/io/ft_printf/internals/convert_none.c b/src/io/ft_printf/internals/convert_none.c
new file mode 100644
index 0000000..358ef1b
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_none.c
@@ -0,0 +1,25 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_none.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/11/04 19:30:25 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/05 23:44:13 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+char	*convert_none(va_list ap, t_pformat *pformat)
+{
+	char	*str;
+
+	(void)ap;
+	if ((str = ft_strdup("")) == NULL)
+		return (NULL);
+	str = handle_precision(pformat, str);
+	str = handle_width(pformat, str);
+	return (str);
+}
diff --git a/src/io/ft_printf/internals/convert_percent.c b/src/io/ft_printf/internals/convert_percent.c
new file mode 100644
index 0000000..813bb77
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_percent.c
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_percent.c                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/30 23:23:27 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/05 23:44:07 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+char	*convert_percent(va_list ap, t_pformat *pformat)
+{
+	char *str;
+
+	(void)ap;
+	str = ft_strdup("%");
+	str = handle_width(pformat, str);
+	return (str);
+}
diff --git a/src/io/ft_printf/internals/convert_ptr.c b/src/io/ft_printf/internals/convert_ptr.c
new file mode 100644
index 0000000..63babb9
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_ptr.c
@@ -0,0 +1,29 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_ptr.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/30 23:24:08 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/05 23:43:45 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+char	*convert_ptr(va_list ap, t_pformat *pformat)
+{
+	char *str;
+
+	str = ITOA_HEX_LOW((long long unsigned int)va_arg(ap, void*));
+	str = handle_precision(pformat, str);
+	if (!(pformat->flags & FLAG_ZERO))
+		str = ft_strjoin_free_snd("0x", str);
+	if (pformat->flags & FLAG_ZERO)
+		pformat->width -= 2;
+	str = handle_width(pformat, str);
+	if (pformat->flags & FLAG_ZERO)
+		str = ft_strjoin_free_snd("0x", str);
+	return (str);
+}
diff --git a/src/io/ft_printf/internals/convert_str.c b/src/io/ft_printf/internals/convert_str.c
new file mode 100644
index 0000000..7d51a5e
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_str.c
@@ -0,0 +1,25 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_str.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/30 23:22:25 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/09 01:07:24 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+char	*convert_str(va_list ap, t_pformat *pformat)
+{
+	char *str;
+
+	str = va_arg(ap, char*);
+	str = str == NULL ? ft_strdup("(null)") : ft_strdup(str);
+	if (pformat->precision >= 0 && pformat->precision < (int)ft_strlen(str))
+		str[pformat->precision] = '\0';
+	str = handle_width(pformat, str);
+	return (str);
+}
diff --git a/src/io/ft_printf/internals/convert_uint.c b/src/io/ft_printf/internals/convert_uint.c
new file mode 100644
index 0000000..4207165
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_uint.c
@@ -0,0 +1,34 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_uint.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/30 23:25:40 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/05 23:44:19 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+char	*convert_uint(va_list ap, t_pformat *pformat)
+{
+	char					*str;
+	long long unsigned int	n;
+
+	if (pformat->flags & FLAG_SHORT)
+		n = (unsigned short)va_arg(ap, int);
+	else if (pformat->flags & FLAG_SHORT_SHORT)
+		n = (unsigned char)va_arg(ap, int);
+	else if (pformat->flags & FLAG_LONG)
+		n = va_arg(ap, long unsigned int);
+	else if (pformat->flags & FLAG_LONG_LONG)
+		n = va_arg(ap, long long unsigned int);
+	else
+		n = va_arg(ap, unsigned int);
+	str = ft_itoa_unsigned_base(n, "0123456789");
+	str = handle_precision(pformat, str);
+	str = handle_width(pformat, str);
+	return (str);
+}
diff --git a/src/io/ft_printf/internals/convert_written.c b/src/io/ft_printf/internals/convert_written.c
new file mode 100644
index 0000000..4beeaef
--- /dev/null
+++ b/src/io/ft_printf/internals/convert_written.c
@@ -0,0 +1,28 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   convert_written.c                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/30 23:38:28 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/05 23:59:24 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+char	*convert_written(va_list ap, t_pformat *pformat)
+{
+	if (pformat->flags & FLAG_SHORT)
+		pformat->written = (long long int*)va_arg(ap, signed char*);
+	if (pformat->flags & FLAG_SHORT_SHORT)
+		pformat->written = (long long int*)va_arg(ap, short*);
+	if (pformat->flags & FLAG_LONG)
+		pformat->written = (long long int*)va_arg(ap, long int*);
+	if (pformat->flags & FLAG_LONG_LONG)
+		pformat->written = va_arg(ap, long long int*);
+	else
+		pformat->written = (long long int*)va_arg(ap, int*);
+	return (NULL);
+}
diff --git a/src/io/ft_printf/internals/extract.c b/src/io/ft_printf/internals/extract.c
new file mode 100644
index 0000000..c56a777
--- /dev/null
+++ b/src/io/ft_printf/internals/extract.c
@@ -0,0 +1,98 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   extract.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/29 00:10:36 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/10 10:33:33 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+const char	*extract_flags(t_pformat *pformat, const char *fmt)
+{
+	if (*fmt == '\0')
+		return (fmt);
+	while (ft_strchr(FLAGS_STR, *fmt) != NULL)
+	{
+		if (*fmt == '0')
+			pformat->flags |= FLAG_ZERO;
+		if (*fmt == '-')
+			pformat->flags |= FLAG_MINUS;
+		if (*fmt == '+')
+			pformat->flags |= FLAG_SIGNED;
+		if (*fmt == ' ')
+			pformat->flags |= FLAG_SPACE;
+		if (*fmt == '#')
+			pformat->flags |= FLAG_ALTERNATE;
+		if (*fmt == '\'')
+			;
+		fmt++;
+	}
+	if (pformat->flags & FLAG_SIGNED)
+		pformat->flags &= ~FLAG_SPACE;
+	return (fmt);
+}
+
+const char	*extract_width(t_pformat *pformat, const char *fmt)
+{
+	if (*fmt == '\0')
+		return (fmt);
+	if (*fmt == '*')
+	{
+		pformat->flags |= FLAG_WIDTH_WILDCARD;
+		fmt++;
+	}
+	if (!ft_isdigit(*fmt))
+		return (fmt);
+	pformat->width = ft_atoi(fmt);
+	while (*fmt && ft_isdigit(*fmt))
+		fmt++;
+	if (pformat->flags & FLAG_WIDTH_WILDCARD)
+		pformat->flags |= FLAG_WIDTH_OVERWRITE;
+	return (fmt);
+}
+
+const char	*extract_precision(t_pformat *pformat, const char *fmt)
+{
+	if (*fmt == '\0' || *fmt != '.')
+		return (fmt);
+	fmt++;
+	if (*fmt == '*')
+	{
+		pformat->flags |= FLAG_PRECISION_WILDCARD;
+		fmt++;
+	}
+	pformat->precision = ft_atoi(fmt);
+	while (*fmt && ft_isdigit(*fmt))
+		fmt++;
+	return (fmt);
+}
+
+const char	*extract_length_modifier(t_pformat *pformat, const char *fmt)
+{
+	if (fmt[0] && fmt[0] == 'l')
+	{
+		if (fmt[1] && fmt[1] == 'l')
+		{
+			pformat->flags |= FLAG_LONG_LONG;
+			return (fmt + 2);
+		}
+		pformat->flags |= FLAG_LONG;
+		return (fmt + 1);
+	}
+	if (fmt[0] && fmt[0] == 'h')
+	{
+		if (fmt[1] && fmt[1] == 'h')
+		{
+			pformat->flags |= FLAG_SHORT_SHORT;
+			return (fmt + 2);
+		}
+		pformat->flags |= FLAG_SHORT;
+		return (fmt + 1);
+	}
+	return (fmt);
+}
diff --git a/src/io/ft_printf/internals/length_modifier.c b/src/io/ft_printf/internals/length_modifier.c
new file mode 100644
index 0000000..88226da
--- /dev/null
+++ b/src/io/ft_printf/internals/length_modifier.c
@@ -0,0 +1,39 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   length_modifier.c                                  :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/11/05 23:56:07 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/09 00:50:06 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+t_big_uint	length_modifier_unsigned_int(va_list ap, t_pformat *pformat)
+{
+	if (pformat->flags & FLAG_SHORT)
+		return ((unsigned short)va_arg(ap, int));
+	else if (pformat->flags & FLAG_SHORT_SHORT)
+		return ((unsigned char)va_arg(ap, int));
+	else if (pformat->flags & FLAG_LONG)
+		return (va_arg(ap, long unsigned int));
+	else if (pformat->flags & FLAG_LONG_LONG)
+		return (va_arg(ap, long long unsigned int));
+	return (va_arg(ap, unsigned int));
+}
+
+t_big_int	length_modifier_int(va_list ap, t_pformat *pformat)
+{
+	if (pformat->flags & FLAG_SHORT)
+		return ((short)va_arg(ap, int));
+	else if (pformat->flags & FLAG_SHORT_SHORT)
+		return ((signed char)va_arg(ap, int));
+	else if (pformat->flags & FLAG_LONG)
+		return (va_arg(ap, long int));
+	else if (pformat->flags & FLAG_LONG_LONG)
+		return (va_arg(ap, long long int));
+	return (va_arg(ap, int));
+}
diff --git a/src/io/ft_printf/internals/list.c b/src/io/ft_printf/internals/list.c
new file mode 100644
index 0000000..99491f4
--- /dev/null
+++ b/src/io/ft_printf/internals/list.c
@@ -0,0 +1,67 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   list.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/29 00:14:50 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/05 23:45:42 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+t_flist	*list_new(t_pformat *content)
+{
+	t_flist	*lst;
+
+	if ((lst = (t_flist*)malloc(sizeof(t_flist))) == NULL)
+		return (NULL);
+	lst->content = content;
+	lst->next = NULL;
+	return (lst);
+}
+
+void	*list_destroy(t_flist **lst)
+{
+	if (lst == NULL)
+		return (NULL);
+	while (*lst != NULL)
+		list_pop_front(lst);
+	return (NULL);
+}
+
+void	list_push_front(t_flist **lst, t_flist *new)
+{
+	if (lst == NULL || new == NULL)
+		return ;
+	new->next = *lst;
+	*lst = new;
+}
+
+void	list_pop_front(t_flist **lst)
+{
+	t_flist	*tmp;
+
+	if (lst == NULL || *lst == NULL)
+		return ;
+	tmp = (*lst)->next;
+	free((*lst)->content);
+	free(*lst);
+	*lst = tmp;
+}
+
+t_flist	*list_reverse(t_flist *lst)
+{
+	t_flist	*tmp;
+
+	if (lst == NULL)
+		return (NULL);
+	if (lst->next == NULL)
+		return (lst);
+	tmp = list_reverse(lst->next);
+	lst->next->next = lst;
+	lst->next = NULL;
+	return (tmp);
+}
diff --git a/src/io/ft_printf/internals/parse.c b/src/io/ft_printf/internals/parse.c
new file mode 100644
index 0000000..33928a0
--- /dev/null
+++ b/src/io/ft_printf/internals/parse.c
@@ -0,0 +1,61 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   parse.c                                            :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/29 00:11:33 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/13 08:13:02 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+int			parse(const char *format, t_flist **flist)
+{
+	t_flist		*tmp;
+	t_pformat	*parsed;
+
+	*flist = NULL;
+	while (*format)
+	{
+		format++;
+		if (format[-1] != '%')
+			continue;
+		if ((parsed = parse_reduced(format)) == NULL)
+			return ((int)list_destroy(flist));
+		if ((tmp = list_new(parsed)) == NULL)
+			return ((int)list_destroy(flist));
+		list_push_front(flist, tmp);
+		format += (*flist)->content->fmt_len;
+	}
+	*flist = list_reverse(*flist);
+	return (1);
+}
+
+t_pformat	*parse_reduced(const char *fmt)
+{
+	t_pformat	*pformat;
+	const char	*start;
+
+	if ((pformat = (t_pformat*)malloc(sizeof(t_pformat))) == NULL)
+		return (NULL);
+	pformat->precision = -1;
+	pformat->width = -1;
+	pformat->flags = 0;
+	start = fmt;
+	fmt = extract_flags(pformat, fmt);
+	fmt = extract_width(pformat, fmt);
+	fmt = extract_precision(pformat, fmt);
+	fmt = extract_length_modifier(pformat, fmt);
+	pformat->fmt_len = fmt - start + 1;
+	if (*fmt == '\0' || ft_strchr(SPECIFIERS_STR, *fmt) == NULL)
+	{
+		pformat->fmt_len--;
+		pformat->specifier = '_';
+	}
+	else
+		pformat->specifier = *ft_strchr(SPECIFIERS_STR, *fmt);
+	return (pformat);
+}
diff --git a/src/io/ft_printf/internals/utils.c b/src/io/ft_printf/internals/utils.c
new file mode 100644
index 0000000..ad44980
--- /dev/null
+++ b/src/io/ft_printf/internals/utils.c
@@ -0,0 +1,115 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   utils.c                                            :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: cacharle <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2019/10/29 00:12:40 by cacharle          #+#    #+#             */
+/*   Updated: 2019/11/13 08:49:58 by cacharle         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "ft_vasprintf.h"
+
+static int	nbrlen_radix(long long int nbr, int radix)
+{
+	int						counter;
+	long long unsigned int	u_nbr;
+
+	if (nbr == 0)
+		return (1);
+	counter = 0;
+	u_nbr = nbr;
+	if (nbr < 0)
+	{
+		counter++;
+		u_nbr = -nbr;
+	}
+	while (u_nbr > 0)
+	{
+		u_nbr /= radix;
+		counter++;
+	}
+	return (counter);
+}
+
+char		*ft_itoa_base(long long int n, char *base)
+{
+	char					*str;
+	int						len;
+	int						radix;
+	long long unsigned int	u_nbr;
+
+	radix = ft_strlen(base);
+	len = nbrlen_radix(n, radix);
+	if ((str = (char*)malloc(sizeof(char) * (len + 1))) == NULL)
+		return (NULL);
+	str[len] = '\0';
+	u_nbr = n < 0 ? -n : n;
+	if (n < 0)
+		str[0] = '-';
+	while (--len >= (n < 0 ? 1 : 0))
+	{
+		str[len] = base[u_nbr % radix];
+		u_nbr /= radix;
+	}
+	return (str);
+}
+
+static int	nbrlen_unsigned_radix(long long unsigned int nbr, int radix)
+{
+	int					counter;
+
+	if (nbr == 0)
+		return (1);
+	counter = 0;
+	while (nbr > 0)
+	{
+		nbr /= radix;
+		counter++;
+	}
+	return (counter);
+}
+
+char		*ft_itoa_unsigned_base(long long unsigned int n, char *base)
+{
+	char				*str;
+	int					len;
+	int					radix;
+
+	radix = ft_strlen(base);
+	len = nbrlen_unsigned_radix(n, radix);
+	if ((str = (char*)malloc(sizeof(char) * (len + 1))) == NULL)
+		return (NULL);
+	str[len] = '\0';
+	while (--len >= 0)
+	{
+		str[len] = base[n % radix];
+		n /= radix;
+	}
+	return (str);
+}
+
+void		*ft_memjoin_free(void *dst, int dst_size, void *src, int src_size)
+{
+	void	*clone;
+
+	if (dst == NULL)
+	{
+		if ((dst = malloc(src_size)) == NULL)
+			return (NULL);
+		ft_memcpy(dst, src, src_size);
+		return (dst);
+	}
+	if ((clone = malloc(dst_size)) == NULL)
+		return (NULL);
+	ft_memcpy(clone, dst, dst_size);
+	free(dst);
+	if ((dst = malloc(dst_size + src_size)) == NULL)
+		return (NULL);
+	ft_memcpy(dst, clone, dst_size);
+	free(clone);
+	ft_memcpy(dst + dst_size, src, src_size);
+	return (dst);
+}