105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
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#include "ft_printf.h"
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/*
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** FT_PRINTF :
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** va_list ap;
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** int length;
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** char *print; | -contain the arg converted into a string
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** char *type; | -contain the specifier type to use
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** | by va_arg
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** while s = next_word() | -return the next sequence to be print
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** | (either a string, or a conversion)
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** type = specifier(s) | -return the type if it's a conversion, or "%",
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** | or NULL if it's a string. if it's a
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** | single '%' it's considered as a string
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** | if convers0, rmvs length & specifier from s
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** if !type: ft_put_word() | -print the string if it wasn't a conversion
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** else | or if it was a '%%'
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** while strchr(s,*) | -for each * present, expand it into s in
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** ft_expand_star()| order it appears
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** print = ft_convert()| -convert the arg with its type,
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** | then trsfm it into a str and rtrn the str
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** ft_flag_transform() | -proceed all modification according to flags
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** ft_put_word(print) | -print the string fully converted
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** return (length) | -return the length of what was printed
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*/
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int ft_printf(char *string, ...)
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{
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char *s;
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char *print;
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char *type;
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int length;
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va_list ap;
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length = 0;
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va_start(ap, string);
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while ((s = next_word(&string)) != NULL)
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{
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if ((type = specifier(s)) == NULL)
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length += ft_put_word(s);
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else
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{
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while (ft_strchr(s, '*'))
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if (!(ft_expand_star(va_arg(ap, int), &s)))
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return (-1);
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print = ft_convert(ap, type);
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// print = ft_flag_transform(s, print);
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length += ft_put_word(print);
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}
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}
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return (length);
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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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** | on str, if < length(str), cuts it,
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** print = ft_precision() | on nbr, if > length(nbr), add '0' before,
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** | then add '-' if negatif
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** | (if precision given with flags '-' or '0'
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** | they're ignored and cuted from s)
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** if i = flag_w(s) | -width is caculated
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** if flag_-(&s) | -if flag '-', rm '-' and width from s
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** print = ft_rpadd() | -put extra width as ' ' to right,
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** else if flag_0(&s) | -if flag '0', rm '0' and width from s
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** print = ft_lpadd() | -put extra width as '0' to left
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** else | -if just width
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** print = ft_lpadd() | put extra width as ' ' to left
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** // if flag_+(s) |
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** // else if flag_space(s) |
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** // if flag_'(s) |
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** // if flag_#(s) |
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** // print = ft_altfrm() |
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**
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** int flag_p(char **s);
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** char *ft_precision(int i, char *print);
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** int flag_w(char *s);
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** void flag_-(char **s);
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** char *ft_rpadd(int i, char *print);
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** char *ft_lpadd(int i, char *print, char c);
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*/
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/*
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char *ft_flag_transform(char *s, char *print)
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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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if ((i = flag_w(s)))
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{
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if (flag_-(&s))
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print = ft_rpadd(i, print);
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else if (flag_0(&s))
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print = ft_lpadd(i, print, '0');
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else
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print = ft_lpadd(i, print, ' ');
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}
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// if (flag_+(s)) //
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// else if (flag_space(s)) //
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// if (flag_'(s)) //
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// if (flag_#(s)) //
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// print = ft_alternate_form(print) //
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}
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*/
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