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Diffstat (limited to 'rendu/ft_printf/ft_printf.c')
-rwxr-xr-xrendu/ft_printf/ft_printf.c365
1 files changed, 187 insertions, 178 deletions
diff --git a/rendu/ft_printf/ft_printf.c b/rendu/ft_printf/ft_printf.c
index 791efc3..d297149 100755
--- a/rendu/ft_printf/ft_printf.c
+++ b/rendu/ft_printf/ft_printf.c
@@ -1,12 +1,12 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
-/* utils.c :+: :+: :+: */
+/* ft_printf.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: exam <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
-/* Created: 2020/02/14 16:57:09 by exam #+# #+# */
-/* Updated: 2020/02/14 18:54:02 by exam ### ########.fr */
+/* Created: 2020/02/24 17:21:15 by exam #+# #+# */
+/* Updated: 2020/02/24 18:33:59 by exam ### ########.fr */
/* */
/* ************************************************************************** */
@@ -14,289 +14,298 @@
#include <stdlib.h>
#include <stdarg.h>
-#include <stdio.h>
-void ft_putchar(char c)
-{
- write(1, &c, 1);
-}
-
-int ft_strlen(char *s)
+int ft_strlen(char *s)
{
int i;
-
+
i = 0;
while (s[i])
i++;
return (i);
}
-void ft_putstr(char *s)
+char *ft_strcpy(char *dest, char *src)
{
- write(1, s, ft_strlen(s));
+ char *d;
+
+ d = dest;
+ while (*src)
+ *dest++ = *src++;
+ *dest = '\0';
+ return (d);
}
-char *ft_strcpy(char *dest, char *src)
+char *ft_strncpy(char *dest, char *src, int n)
{
- char *s;
+ char *d;
- s = dest;
- while (*src)
+ d = dest;
+ while (*src && n-- > 0)
*dest++ = *src++;
*dest = '\0';
- return (s);
+ return (d);
}
-char *ft_strdup(char *s)
+void ft_putchar(char c)
{
- char *clone;
-
- if ((clone = malloc(ft_strlen(s) + 1)) == NULL)
- return (NULL);
- ft_strcpy(clone, s);
- return (clone);
+ write(1, &c, 1);
}
-char *ft_strcat(char *dest, char *src)
+void ft_putstr(char *s)
{
- char *s;
-
- s = dest;
- while (*dest)
- dest++;
- while (*src)
- *dest++ = *src++;
- *dest = '\0';
- return (s);
+ write(1, s, ft_strlen(s));
}
-static int st_itoa_base_count(long num, int radix)
+void ft_putnbr_base(long long n, char *base, int radix)
{
- int counter;
-
- counter = 0;
- if (num <= 0)
- counter = 1;
- while (num > 0)
+ if (n < 0)
{
- num /= radix;
- counter++;
+ ft_putchar('-');
+ ft_putnbr_base(-n, base, radix);
+ return ;
}
- return (counter);
+ if (n > radix - 1)
+ ft_putnbr_base(n / radix, base, radix);
+ ft_putchar(base[n % radix]);
}
-char *ft_itoa_base(long long num, char *base)
+int nbrlen(long long n, int radix)
{
- int radix;
- char *s;
- int i;
- int is_neg;
+ int i;
- radix = ft_strlen(base);
- if ((s = malloc(st_itoa_base_count(num, radix) + 1)) == NULL)
- return (NULL);
- s[st_itoa_base_count(num, radix)] = '\0';
- is_neg = 0;
- if (num < 0)
- {
- s[0] = '-';
- num = -num;
- is_neg = 1;
- }
- i = st_itoa_base_count(num, radix);
- if (num == 0)
+ if (n == 0)
+ return (1);
+ i = 0;
+ if (n < 0)
{
- s[0] = base[0];
- return (s);
+ i++;
+ n = -n;
}
- while (i >= is_neg ? 1 : 0)
+ while (n > 0)
{
- i--;
- s[is_neg ? i + 1 : i] = base[num % radix];
- num /= radix;
+ n /= radix;
+ i++;
}
- return (s);
+ return (i);
+}
+
+char *ft_strndup(char *s, int n)
+{
+ char *d;
+
+ if ((d = malloc(sizeof(char) * (n + 1))) == NULL)
+ return (NULL);
+ return (ft_strncpy(d, s, n));
}
int ft_atoi_skip(char **s)
{
- long num;
+ long n;
- num = 0;
+ n = 0;
while (**s >= '0' && **s <= '9')
{
- num *= 10;
- num += **s - '0';
+ n *= 10;
+ n += **s - '0';
(*s)++;
}
- return ((int)num);
+ return ((int)n);
}
typedef struct
{
- int precision;
- int width;
-} t_parsing;
+ int precision;
+ int width;
+ char specifier;
+} t_parsing;
-char *parse(t_parsing *parsing, char *fmt)
+char *parse(char *fmt, t_parsing *parsing)
{
- parsing->precision = -1;
parsing->width = -1;
-
+ parsing->precision = -1;
if (*fmt >= '0' && *fmt <= '9')
parsing->width = ft_atoi_skip(&fmt);
if (*fmt == '.')
- {
fmt++;
+ if (*fmt >= '0' && *fmt <= '9')
parsing->precision = ft_atoi_skip(&fmt);
- }
+ parsing->specifier = *fmt++;
return (fmt);
}
-int convert_str(va_list ap, t_parsing *parsing)
+int convert_s(va_list ap, t_parsing *parsing)
{
- int written;
char *tmp;
- char *str;
- int is_null;
+ int len;
+ char s[400000];
+ int counter;
- str = va_arg(ap, char*);
- is_null = str == NULL;
- if (str == NULL)
- if ((str = ft_strdup("(null)")) == NULL)
- return (-1);
- if (parsing->precision != -1 && ft_strlen(str) > parsing->precision)
+ tmp = va_arg(ap, char*);
+ if (tmp == NULL)
+ ft_strcpy(s, "(null)");
+ else
+ ft_strcpy(s, tmp);
+ len = ft_strlen(s);
+ if (parsing->width != -1 && parsing->precision != -1)
{
- if ((tmp = ft_strdup(str)) == NULL)
- return (-1);
- tmp[parsing->precision] = '\0';
- str = tmp;
+ while (len > parsing->precision)
+ len--;
+ s[len] = 0;
+ counter = parsing->width > len ? parsing->width : len;
+ while (parsing->width-- > len)
+ ft_putchar(' ');
+ ft_putstr(s);
+ return (counter);
}
- written = ft_strlen(str);
- if (parsing->width != -1)
+ else if (parsing->width != -1)
{
- while (ft_strlen(str) < parsing->width)
- {
+ counter = parsing->width > len ? parsing->width : len;
+ while (parsing->width-- > len)
ft_putchar(' ');
- parsing->width--;
- written++;
- }
+ ft_putstr(s);
+ return (counter);
}
- ft_putstr(str);
- if (parsing->precision != -1 || is_null)
- free(str);
- return (written);
+ else if (parsing->precision != -1)
+ {
+ counter = parsing->precision < len ? parsing->precision : len;
+ while (len-- > parsing->precision)
+ ;
+ s[len + 1] = 0;
+ ft_putstr(s);
+ return (counter);
+ }
+ else
+ ft_putstr(s);
+ return (len);
}
int convert_d(va_list ap, t_parsing *parsing)
{
- int i;
- int len;
- long int num;
- char *s;
- char *tmp;
+ long n;
+ int len;
+ int counter;
- num = va_arg(ap, int);
- if ((s = ft_itoa_base(num, "0123456789")) == NULL)
- return (-1);
- len = ft_strlen(s);
- if (parsing->precision != -1 && len < parsing->precision)
+ n = (long)va_arg(ap, int);
+ len = nbrlen(n, 10);
+ if (parsing->width != -1 && parsing->precision != -1)
{
- if ((tmp = malloc(parsing->precision + 10)) == NULL)
- return (-1);
- ft_strcpy(tmp + parsing->precision - len, s);
- i = 0;
- while (i < parsing->precision - len)
+ counter = parsing->width > len ? parsing->width : len;
+ while (parsing->width > (parsing->precision > len ? (n < 0 ? parsing->precision + 1 : parsing->precision) : len))
+ {
+ ft_putchar(' ');
+ parsing->width--;
+ }
+ if (n < 0)
{
- tmp[i] = '0';
- i++;
+ ft_putchar('-');
+ n = -n;
+ len--;
}
- s = tmp;
+ counter = counter > parsing->precision ? counter :parsing->precision;
+ while (parsing->precision-- > len)
+ ft_putchar('0');
+ ft_putnbr_base(n, "0123456789", 10);
+ return (counter);
}
- len = ft_strlen(s);
- if (parsing->width != -1 && len < parsing->width)
+ else if (parsing->width != -1)
{
- while (len < parsing->width)
- {
+ counter = parsing->width > len ? parsing->width : len;
+ while (parsing->width-- > len)
ft_putchar(' ');
- len++;
+ ft_putnbr_base(n, "0123456789", 10);
+ return (counter);
+ }
+ else if (parsing->precision != -1)
+ {
+ counter = 0;
+ if (n < 0)
+ {
+ ft_putchar('-');
+ n = -n;
+ len--;
+ counter = 1;
}
+ counter += parsing->precision > len ? parsing->precision : len;
+ while (parsing->precision-- > len)
+ ft_putchar('0');
+ ft_putnbr_base(n, "0123456789", 10);
+ return (counter);
}
- ft_putstr(s);
- free(s);
+ ft_putnbr_base(n, "0123456789", 10);
return (len);
}
int convert_x(va_list ap, t_parsing *parsing)
{
- int i;
+ unsigned int n;
int len;
- long unsigned int num;
- char *s;
- char *tmp;
+ int counter;
- num = va_arg(ap, unsigned int);
- if ((s = ft_itoa_base(num, "0123456789abcdef")) == NULL)
- return (-1);
- len = ft_strlen(s);
- if (parsing->precision != -1 && len < parsing->precision)
+ n = va_arg(ap, unsigned int);
+ len = nbrlen(n, 16);
+ if (parsing->width != -1 && parsing->precision != -1)
{
- if ((tmp = malloc(parsing->precision + 1)) == NULL)
- return (-1);
- ft_strcpy(tmp + parsing->precision - len, s);
- i = 0;
- while (i < parsing->precision - len)
- {
- tmp[i] = '0';
- i++;
- }
- free(s);
- s = tmp;
+ counter = parsing->width > len ? parsing->width : len;
+ while (parsing->width-- > (parsing->precision > len ? parsing->precision : len))
+ ft_putchar(' ');
+ counter = counter > parsing->precision ? counter :parsing->precision;
+ counter = counter > parsing->precision ? counter :parsing->precision;
+ counter = counter > parsing->precision ? counter :parsing->precision;
+ counter = counter > parsing->precision ? counter :parsing->precision;
+ while (parsing->precision-- > len)
+ ft_putchar('0');
+ ft_putnbr_base(n, "0123456789abcdef", 16);
+ return (counter);
}
- len = ft_strlen(s);
- if (parsing->width != -1 && len < parsing->width)
+ else if (parsing->width != -1)
{
- while (len < parsing->width)
- {
+ counter = parsing->width > len ? parsing->width : len;
+ while (parsing->width-- > len)
ft_putchar(' ');
- len++;
- }
+ ft_putnbr_base(n, "0123456789abcdef", 16);
+ return (counter);
}
- ft_putstr(s);
- if (parsing->precision == -1)
- free(s);
-// free(s);
+ else if (parsing->precision != -1)
+ {
+ counter = len > parsing->precision ? len :parsing->precision;
+ while (parsing->precision-- > len)
+ ft_putchar('0');
+ ft_putnbr_base(n, "0123456789abcdef", 16);
+ return (counter);
+ }
+ ft_putnbr_base(n, "0123456789abcdef", 16);
return (len);
}
int ft_printf(const char *fmt, ... )
{
t_parsing parsing;
+ int counter;
va_list ap;
- int i;
- int tmp;
va_start(ap, fmt);
- i = 0;
+ counter = 0;
while (*fmt)
{
if (*fmt == '%')
{
- fmt = parse(&parsing, (char*)++fmt);
- if (*fmt == 's')
- i += convert_str(ap, &parsing);
- else if (*fmt == 'd')
- i += convert_d(ap, &parsing);
- else if (*fmt == 'x')
- i += convert_x(ap, &parsing);
fmt++;
+ fmt = parse((char*)fmt, &parsing);
+// printf("%d %d\n", parsing.width, parsing.precision);
+ if (parsing.specifier == 's')
+ counter += convert_s(ap, &parsing);
+ else if (parsing.specifier == 'd')
+ counter += convert_d(ap, &parsing);
+ else if (parsing.specifier == 'x')
+ counter += convert_x(ap, &parsing);
+ else
+ return (-1);
}
else
{
- ft_putchar(*fmt);
- fmt++;
- i++;
+ ft_putchar(*fmt++);
+ counter++;
}
}
- va_end(ap);
- return (i);
+ return (counter);
}
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