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#include <stdlib.h>
#include "header.h"
#define STRRCHR_CONVERSIONS(c) (ft_strrchr(CONVERSIONS_STR, c))
#define IS_STANDALONE_FLAG(c) (c == '0' || c == '-')
t_list *parse(const char *format)
{
t_list *format_list;
t_list *tmp;
t_pformat *parsed;
format_list = NULL;
while (*format)
{
if (*format != '%')
{
format++;
continue;
}
format++;
if ((parsed = parse_conversion(isolate_conversion(format))) == NULL)
return (list_destroy(format_list));
if ((tmp = list_new(parsed)) == NULL)
return (list_destroy(format_list));
list_push_back(&format_list, tmp);
}
return (format_list);
}
char *isolate_conversion(const char *conversion_start)
{
int i;
i = 0;
while (strrchr_index(CONVERSIONS_STR, conversion_start[i]) == -1)
i++;
return (ft_strndup(conversion_start, i + 1));
}
// %[position][dollar][flags][width][.precision][length]type
t_pformat *parse_conversion(char *conversion)
{
int i;
char *start;
t_pformat *pformat;
if (conversion == NULL)
return (NULL);
if ((pformat = (t_pformat*)malloc(sizeof(t_pformat))) == NULL)
return (NULL);
i = ft_strlen(conversion) - 1;
pformat->len = i + 1;
pformat->conversion = strrchr_index(CONVERSIONS_STR, conversion[i]);
i--;
if ((conversion = parse_arg_position(conversion, pformat)) == NULL)
return (NULL);
start = conversion;
pformat->zero_padding = FALSE;
pformat->left_adjusted = FALSE;
while (IS_STANDALONE_FLAG(*start))
{
if (!pformat->zero_padding)
pformat->zero_padding = *start == '0';
if (!pformat->left_adjusted)
pformat->left_adjusted = *start == '-';
start++;
}
pformat->min_field_width_wildcard = FALSE;
if (*start == '*')
{
pformat->min_field_width_wildcard = TRUE;
start++;
}
if (ft_isdigit(*start))
{
pformat->min_field_width = ft_atoi(start);
while (ft_isdigit(*start))
start++;
}
else
pformat->min_field_width = -1;
pformat->precision = -1;
pformat->precision_wildcard = FALSE;
if (*start == '.')
{
start++;
/* printf("\n%s\n", start); */
if (*start == '*')
pformat->precision_wildcard = TRUE;
else
{
pformat->precision_wildcard = FALSE;
pformat->precision = ft_atoi(start);
while (ft_isdigit(*start))
start++;
}
}
return (pformat);
}
char *parse_arg_position(char *conversion, t_pformat *pformat)
{
if (strrchr_index(conversion, '$') != -1)
{
if ((pformat->ap_index = ft_atoi(conversion)) == 0)
{
free(pformat);
return (NULL);
}
while (ft_isdigit(*conversion))
conversion++;
conversion++;
}
else
pformat->ap_index = -1;
return (conversion);
}
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