precision ok, width en cours
This commit is contained in:
Hugo LAMY
183
ft_printf.c
183
ft_printf.c
@@ -1,6 +1,105 @@
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#include "ft_printf.h"
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/*
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** -function that modify the string 'print' according to the precision flag :
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** if length(s) < precision, add x '0' bfr nbr, but after '-' if negative
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*/
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char *precision_int(char *print, int precision)
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{
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int i;
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char *tmp;
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i = ft_strlen(print);
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if (print[0] == '-')
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precision++;
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if (precision > i)
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{
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if (!(tmp = (char *)malloc(sizeof(char) * (precision + 1))))
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return (NULL);
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tmp[precision] = '\0';
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if (print[0] == '-')
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tmp[0] = '-';
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while (i)
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tmp[--precision] = print[--i];
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if (print[0] == '-')
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precision++;
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while (precision)
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tmp[--precision] = '0';
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if (print[0] == '-')
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tmp[0] = '-';
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free(print);
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print = tmp;
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}
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return (print);
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}
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/*
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** -it first verify if there is a precision point, and if so, it execute a
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** serie of action listed below, otherwise return print as it is
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** ACTIONS :
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** -look for a '.'
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** -if followed by numbers, extract an int version of those numbers
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** -if the '.' is alone, gives value '0' to the int
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** -then removes the '.' and the numbers from the %string
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** -if flag '0' is present in %string, removes it (actually turn each occurence
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** in a '.')
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** -and transform 'print' according to the precision :
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** -1 if type is s: if length(s) > precision, removes end of 'print' to print
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** only x chars, with x = precision
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** -2 if type is "diouxX": call fonction 'precision_int' that return :
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** if length(s) < precision, add x '0' bfr nbr, but after '-' if negative
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** -3 if type is "aAeEfF": not covered
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** -4 si type is "gG": not covered
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** -5 else: error
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*/
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char *ft_precision(char *s, char *print, char *type)
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{
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char *tmp;
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int precision;
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int i;
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if ((tmp = ft_strchr(s, '.')))
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{
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precision = ft_atoi(tmp + 1);
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*tmp = '\0';
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while (ft_strchr("#- +'0", *(++s)))
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if (*s == '0')
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*s = '.';
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i = 0;
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if (ft_strchr(type, 's'))
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{
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while (i < precision && print[i])
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i++;
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if (print[i])
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print[i] = '\0';
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}
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if (ft_strchrset(type, "diouxX"))
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print = precision_int(print, precision);
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}
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return (print);
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}
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/*
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**
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*/
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char *ft_width(char *s, char *print, char *type)
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{
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int i;
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ft_putstr("[");ft_putstr(s);ft_putstr("|");
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while (ft_strchr("%#- +'0.", *s))
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s++;
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ft_putstr(s);ft_putstr("|");
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i = ft_atoi(s);
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(void)type;
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ft_putnbr(i);ft_putstr("]");
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return (print);
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}
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/*
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** FT_FLAG_TRANSFORM :
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** if i = flag_p(&s) | -precision is calculated before width,
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@@ -30,84 +129,12 @@
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** char *ft_lpadd(int i, char *print, char c);
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*/
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char *ft_precision(char *s, char *print)
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{ char *test;
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char *tmp;
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int i; test = s;
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if ((tmp = ft_strchr(s, '.')))
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{ ft_putstr("(");ft_putstr(s);ft_putstr(")");
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i = ft_atoi(tmp + 1);
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while (*tmp)
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*(tmp++) = '\0';
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while (ft_strchr("#- +'0", *(++s)))
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if (*s == '0')
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*s = '.';
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// tmp = s;
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// while (ft_strchr("%#- +'0", *s))
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// {
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// if (*s == '0')
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// s++;
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// *tmp = *s;
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// tmp++;
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// s++;
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// }
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// while (*s)
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// {
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// *tmp = *s;
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// s++;
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// tmp++;
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// }
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/* *tmp = '\0';*/ s = test;ft_putstr("[");ft_putnbr(i);ft_putstr("]");ft_putstr("(");ft_putstr(s);ft_putstr(")");
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// return (precision_trsf);
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}
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return (print);
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}
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char *ft_flag_transform(char *s, char *print)
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char *ft_flag_transform(char *s, char *print, char *type)
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{
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// printf("|%i| - |%.0i| - |%.0i| - |%.i|\n",0,0,1,0);
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// printf("|%i| - |%i| - |%.4i| - |%.4i|\n",10,-10,10,-10);
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// printf("|%i| - |%05i| - |%05.4i| - |%.4i|\n",10,10,10,10);
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// printf("|%i| - |%-5i| - |%-5.4i| - |%-.4i|\n",10,10,10,10);
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// char * t = "trois";
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// printf("|%s| - |%.0s| - |%.2s| - |%.10s|\n",t,t,t,t);
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// char y = 'y';
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// printf("|%c| - |%.0c| - |%.2c| - |%.10c|\n",y,y,y,y);
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print = ft_precision(s, print);
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// (print, s, type); // -regarde s'il y a un '.' suivit de
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// chiffres, donc une precision
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// -si oui transforme les chiffres en
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// un int 'precision'
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// -s'il y a un '.' sans chiffres,
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// donner la valeur 0 a 'precision'
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// -virer ces chiffres et le '.' de s
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// -si flag '0', l'enlever de s aussi
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// -transformer print en fonction de
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// cette precision :
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// -1 si type vaut s:
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// -si length(s) > a precision
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// raboter la fin de s pour afficher
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// uniquement au max la longueur de
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// precision
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// -sinon laisser print tel quel
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// -2 si type de s est "diouxX":
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// -si length(s) < a precision
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// ajouter des '0' avant le nombre
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// mais apres le signe '-' si c'est
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// un nombre negatif
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// -3 si type de s est "aAeEfF":
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// -non traite
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// -4 si type de s est "gG":
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// -non traite
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// -5 sinon:
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// -erreur
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// int i;
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//
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// if ((i = flag_p(&s)))
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// print = ft_precision(i, print);
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ft_putstr(s);ft_putstr("|");
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print = ft_precision(s, print, type);
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ft_putstr(s);ft_putstr("|");
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print = ft_width(s, print, type);
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// if ((i = flag_w(s)))
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// {
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// if (flag_-(&s))
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@@ -171,7 +198,7 @@ int ft_printf(char *string, ...)
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return (-1);
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if (!(print = ft_convert(ap, type)))
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return (-1);
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if (!(print = ft_flag_transform(s, print)))
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if (!(print = ft_flag_transform(s, print, type)))
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return (-1);
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length += ft_put_word(print);
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}
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