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some precisions in main and advancements in pseudo code in printf

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This commit is contained in:
Hugo LAMY
2020-01-11 01:45:00 +01:00
parent b0702fd2f3
commit 8b3d35bdc9
3 changed files with 118 additions and 127 deletions
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.ft_printf.c.swn
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215
ft_printf.c
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@@ -2,85 +2,14 @@
#include "ft_printf.h" #include "ft_printf.h"
#include <libc.h> #include <libc.h>
//int ft_error(int i)
//{
// if (i == 0)
// return (1);
// return (0);
//}
/*
%[arg_nbr$][flags 0,-,#,', ,+][width *][.precision *][length hh,h,ll,l,L,j,t,z][specifier d,i,u,x,X,c,s,p,%,e,f,g,n,E,F,G,a,A,C,S,o]
% [flags 0,- ][width *][.precision *] [specifier d,i,u,x,X,c,s,p,% ]
% [flags #,', ,+] [length hh,h,ll,l ][specifier e,f,g,n ]
str = "%3s - truc: %.2i - machin: %04c \n"
ft_next_word
if str[0] == '%'
from str+1 to [specifier];
else
from str[0] to '%';
[%3s][ - truc: ][%.2i][ - machin: ][%04c][ \n]
while ((s = next_word(str)) != NULL)
type = ft_specifier(&s); // return the type according to specifier and length && pull them out of s
while (flag_*(s))
s = ft_expand_star(va_arg, "i", s); // (use ft_convert) replace first * by arg in s, ex: "%*.*i" --> "%2.*i" --> "%2.3i"
print = ft_convert(va_arg, type);
if ((i = flag_p(s)))
print = ft_precision(i, print);
if ((i = flag_w(s)))
if (flag_-(s))
print = ft_right_padded(i, print);
else if (flag_0(s))
print = ft_right_padded(i, print);
( if (flag_+(s))
( else if (flag_space(s))
( if (flag_'(s))
( if (flag_#(s))
( print = ft_alternate_form(print)
*/
//char *ft_nextword(char *str)
//{
// char *word;
//
// word = strdup(str);
// return (word);
//}
//t_prist *ft_store(char *str)
//{
// t_prist *lst;
// t_prist *lstmp;
// char *tmp;
//
// lst = NULL;
// while (*str != '\0')
// {
// lstmp = lst;
// (*lst) = (t_prist *)malloc(sizeof(*lst));
// tmp = ft_nextword(str);
// (*arglst)->str = ft_strdup(tmp);
// ...fill_flag...;
// if (tmp != NULL)
// tmp[0] = '%';
// str = tmp;
// lst->next = lstmp;
// }
// return (lst);
//}
/* /*
** va_list ap;
** char *print; | -contain the arg converted into a string ** char *print; | -contain the arg converted into a string
** char *type; | -contain the specifier type to use ** char *type; | -contain the specifier type to use
** | by va_arg ** | by va_arg
** while s = next_word() | -return the next sequence to be print ** while s = next_word() | -return the next sequence to be print
** | (either a string, or a conversion) ** | (either a string, or a conversion)
** type = ft_specifier(&s) | -return the type if it's a conversion, ** type = ft_specifier(&s) | -return the type if it's a conversion, or "%",
** | or NULL if it's a string. ** | or NULL if it's a string.
** | if convers0, rmvs length & specifier from s ** | if convers0, rmvs length & specifier from s
** if !type: ft_put_word() | -print the string if it wasn't a conversion ** if !type: ft_put_word() | -print the string if it wasn't a conversion
@@ -91,45 +20,88 @@ while ((s = next_word(str)) != NULL)
** ft_flag_transform() | -proceed all modification according to flags ** ft_flag_transform() | -proceed all modification according to flags
** ft_put_word(print) | -print the string fully converted ** ft_put_word(print) | -print the string fully converted
** return (length) | -return the length of what was printed ** return (length) | -return the length of what was printed
**
** char *next_word(char *s);
** char *ft_specifier(char **s);
** int ft_put_words(char *s);
** void flag_*(char *s);
** void ft_expand_star(int i, char **s);
** char *ft_convert(va_list ap, char *type);
** char *ft_flag_transform(char *s, char *print);
*/ */
int ft_printf(char *string, ...) int ft_printf(char *string, ...)
{ {
char *print; // char *print;
char *type; // char *type;
int length; // int length;
// va_list ap;
//
// length = 0;
// va_start(ap, string);
// while ((s = next_word(str)) != NULL)
// {
// if (!(type = ft_specifier(&s)))
// lentgh += ft_put_word(s);
// while (flag_*(s))
// ft_expand_star(va_arg(ap, int), &s);
// if (*type == '%')
// print = ft_strdup("%");
// else
// print = ft_convert(ap, type);
// print = ft_flag_transform(s, print);
// length += ft_put_word(print);
// }
// return (length)
//}
length = 0; /*
while ((s = next_word(str)) != NULL) ** if i = flag_p(&s) | -precision is calculated before width,
{ ** | on str, if < length(str), cuts it,
if (!(type = ft_specifier(&s))) ** print = ft_precision() | on nbr, if > length(nbr), add '0' before,
lentgh += ft_put_word(s); ** | then add '-' if negatif
while (flag_*(s)) ** | (if precision given with flags '-' or '0'
ft_expand_star(va_arg(ap, int), &s); ** | they're ignored and cuted from s)
print = ft_convert(va_arg(ap, type), type); ** if i = flag_w(s) | -width is caculated
print = ft_flag_transform(s, print); ** if flag_-(&s) | -if flag '-', rm '-' and width from s
length += ft_put_word(print); ** print = ft_rpadd() | -put extra width as ' ' to right,
} ** else if flag_0(&s) | -if flag '0', rm '0' and width from s
return (length) ** print = ft_lpadd() | -put extra width as '0' to left
} ** else | -if just width
** print = ft_lpadd() | put extra width as ' ' to left
** // if flag_+(s) |
** // else if flag_space(s) |
** // if flag_'(s) |
** // if flag_#(s) |
** // print = ft_altfrm() |
**
** int flag_p(char **s);
** char *ft_precision(int i, char *print);
** int flag_w(char *s);
** void flag_-(char **s);
** char *ft_rpadd(int i, char *print);
** char *ft_lpadd(int i, char *print, char c);
*/
// ft_flag_transform() // ft_flag_transform()
// { // {
// if ((i = flag_p(&s))) // precision is calculated before width, if its on string it cuts it if smaller than it, // if ((i = flag_p(&s)))
// print = ft_precision(i, print); // and on numbers it add '0' before it if bigger, then add minus sign if negatif (if precision is given with flags - or 0 they're ignored and cuted from s) // print = ft_precision(i, print);
// if ((i = flag_w(s))) // // if ((i = flag_w(s)))
// { // {
// if (flag_-(s)) // if (flag_-(&s))
// print = ft_right_padded(i, print); // print = ft_rpadd(i, print);
// else if (flag_0(s)) // else if (flag_0(&s))
// print = ft_left_padded(i, print); // print = ft_lpadd(i, print, '0');
// } // else
// // if (flag_+(s)) // print = ft_lpadd(i, print, ' ');
// // else if (flag_space(s))
// // if (flag_'(s))
// // if (flag_#(s))
// // print = ft_alternate_form(print)
// } // }
// if (flag_+(s)) //
// else if (flag_space(s)) //
// if (flag_'(s)) //
// if (flag_#(s)) //
// print = ft_alternate_form(print) //
// }
t_prist *lst; t_prist *lst;
va_list ap; va_list ap;
@@ -162,24 +134,6 @@ int main(void)
i = 6; i = 6;
printf("%s-%s-%c-%i\n\n", s, str, c, i); printf("%s-%s-%c-%i\n\n", s, str, c, i);
ft_printf(s, c, str, i); ft_printf(s, c, str, i);
printf("char %lu\n", sizeof(char));
printf("short %lu\n", sizeof(short));
printf("int %lu\n", sizeof(int));
printf("long %lu\n", sizeof(long));
printf("long long %lu\n", sizeof(long long));
printf("unsigned char %lu\n", sizeof(unsigned char));
printf("unsigned short %lu\n", sizeof(unsigned short));
printf("unsigned int %lu\n", sizeof(unsigned int));
printf("unsigned long %lu\n", sizeof(unsigned long));
printf("unsigned long long %lu\n", sizeof(unsigned long long));
printf("char * %lu\n", sizeof(char *));
printf("short * %lu\n", sizeof(short *));
printf("int * %lu\n", sizeof(int *));
printf("long * %lu\n", sizeof(long *));
printf("long long * %lu\n", sizeof(long long *));
printf("double %lu\n", sizeof(double));
// printf("wint_t %lu\n", sizeof(wint_t));
// printf("wchar_T %lu\n", sizeof(wchar_t));
return (0); return (0);
} }
@@ -268,4 +222,25 @@ nhh char *
nh short * 15 short * nh short * 15 short *
nl long * 16 long * nl long * 16 long *
nll long long * 17 long long * nll long long * 17 long long *
printf("char %lu\n", sizeof(char));
printf("short %lu\n", sizeof(short));
printf("int %lu\n", sizeof(int));
printf("long %lu\n", sizeof(long));
printf("long long %lu\n", sizeof(long long));
printf("unsigned char %lu\n", sizeof(unsigned char));
printf("unsigned short %lu\n", sizeof(unsigned short));
printf("unsigned int %lu\n", sizeof(unsigned int));
printf("unsigned long %lu\n", sizeof(unsigned long));
printf("unsigned long long %lu\n", sizeof(unsigned long long));
printf("char * %lu\n", sizeof(char *));
printf("short * %lu\n", sizeof(short *));
printf("int * %lu\n", sizeof(int *));
printf("long * %lu\n", sizeof(long *));
printf("long long * %lu\n", sizeof(long long *));
printf("double %lu\n", sizeof(double));
// printf("wint_t %lu\n", sizeof(wint_t));
// printf("wchar_T %lu\n", sizeof(wchar_t));
*/ */

30
main.c
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@@ -121,6 +121,9 @@ int main(void)
// printf("(\"%%6i\",-456) ft : "); ft_printf("'%6i'\n", -456); // printf("(\"%%6i\",-456) ft : "); ft_printf("'%6i'\n", -456);
printf("(\"%%6i\",-456) : "); printf("'%6i'\n", -456); printf("\n"); printf("(\"%%6i\",-456) : "); printf("'%6i'\n", -456); printf("\n");
// printf("(\"%%6%%\") ft : "); ft_printf("'%6%'\n");
printf("(\"%%6%%\") : "); printf("'%6%'\n"); printf("\n");
printf("- flag - --------------------------------------\n\n"); printf("- flag - --------------------------------------\n\n");
// printf("(\"%%-3s\",\"a\") ft : "); ft_printf("'%-3s'\n", "a"); // printf("(\"%%-3s\",\"a\") ft : "); ft_printf("'%-3s'\n", "a");
@@ -144,19 +147,23 @@ int main(void)
// printf("(\"%%-3i\",123456) ft : "); ft_printf("'%-3i'\n", 123456); // printf("(\"%%-3i\",123456) ft : "); ft_printf("'%-3i'\n", 123456);
printf("(\"%%-3i\",123456) : "); printf("'%-3i'\n", 123456); printf("\n"); printf("(\"%%-3i\",123456) : "); printf("'%-3i'\n", 123456); printf("\n");
printf("- flag 0 --------------------------------------\n\n"); printf("- flag 0 (diouxX%%)------------------------------\n");
printf("- \n");
// printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1); // printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1);
printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n"); printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n");
// printf("(\"%%09i\",\"123456\") ft : "); ft_printf("'%09s'\n", "123456"); // printf("(\"%%03u\",1) ft : "); ft_printf("'%03u'\n", 1);
// printf("(\"%%09i\",\"123456\") : "); printf("'%09s'\n", "123456"); printf("\n"); printf("(\"%%03u\",1) : "); printf("'%03u'\n", 1); printf("\n");
// printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1); // printf("(\"%%03x\",1) ft : "); ft_printf("'%03x'\n", 1);
printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n"); printf("(\"%%03x\",1) : "); printf("'%03x'\n", 1); printf("\n");
// printf("(\"%%03i\",1) ft : "); ft_printf("'%03i'\n", 1); // printf("(\"%%03%%\") ft : "); ft_printf("'%03%'\n");
printf("(\"%%03i\",1) : "); printf("'%03i'\n", 1); printf("\n"); printf("(\"%%03%%\") : "); printf("'%03%'\n"); printf("\n");
// printf("(\"%%0%%\") ft : "); ft_printf("'%0%'\n");
printf("(\"%%0%%\") : "); printf("'%0%'\n"); printf("\n");
printf("- flag . (diouxXs) ----------------------------------------------------------\n"); printf("- flag . (diouxXs) ----------------------------------------------------------\n");
printf("- if the . is not followed by a number, the value is 0\n"); printf("- if the . is not followed by a number, the value is 0\n");
@@ -228,6 +235,9 @@ int main(void)
// printf("(\"%%.07i\",8645) ft : "); ft_printf("'%.07i'\n", 8645); // printf("(\"%%.07i\",8645) ft : "); ft_printf("'%.07i'\n", 8645);
printf("(\"%%.07i\",8645) : "); printf("'%.07i'\n", 8645); printf("\n"); printf("(\"%%.07i\",8645) : "); printf("'%.07i'\n", 8645); printf("\n");
// printf("(\"%%.7%%\") ft : "); ft_printf("'%.7%'\n");
printf("(\"%%.7%%\") : "); printf("'%.7%'\n"); printf("\n");
printf("- flag * --------------------------------------\n\n"); printf("- flag * --------------------------------------\n\n");
// printf("(\"%%*i\",3,1) ft : "); ft_printf("'%*i'\n", 3, 1); // printf("(\"%%*i\",3,1) ft : "); ft_printf("'%*i'\n", 3, 1);
@@ -309,6 +319,12 @@ int main(void)
// printf("(\"%%010s\",str) ft : "); ft_printf("'%010s'", str); // printf("(\"%%010s\",str) ft : "); ft_printf("'%010s'", str);
printf("(\"%%010s\",str) : ");/* printf("'%010s'", str);*/ printf(" flag 0 has undefined behavior with s specifier\n\n"); printf("(\"%%010s\",str) : ");/* printf("'%010s'", str);*/ printf(" flag 0 has undefined behavior with s specifier\n\n");
// printf("(\"%%010c\",c) ft : "); ft_printf("'%010c'", c);
printf("(\"%%010c\",c) : ");/* printf("'%010c'", c);*/ printf(" flag 0 has undefined behavior with c specifier\n\n");
// printf("(\"%%03p\",str) ft : "); ft_printf("'%03p'\n", str);
printf("(\"%%03p\",str) : ");/* printf("'%03p'\n", str);*/ printf(" flag 0 has undefined behavior with p specifier\n\n");
// printf("(\"%%.-7X\",8645) ft : "); ft_printf("'%.-7X'", 8645); // printf("(\"%%.-7X\",8645) ft : "); ft_printf("'%.-7X'", 8645);
printf("(\"%%.-7X\",8645) : ");/* printf("'%.-7X'", 8645);*/ printf(" invalid flag - for .precision\n\n"); printf("(\"%%.-7X\",8645) : ");/* printf("'%.-7X'", 8645);*/ printf(" invalid flag - for .precision\n\n");