diff options
Diffstat (limited to '')
| -rw-r--r-- | libft/src/ft_strtok_r.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/libft/src/ft_strtok_r.c b/libft/src/ft_strtok_r.c new file mode 100644 index 0000000..f3411cc --- /dev/null +++ b/libft/src/ft_strtok_r.c @@ -0,0 +1,100 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_strtok_r.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/02/14 17:07:12 by rbousset #+# #+# */ +/* Updated: 2020/02/14 17:07:12 by rbousset ### ########lyon.fr */ +/* */ +/* ************************************************************************** */ + +#include <libft.h> + +static t_stok + ft_cont(char *s, const char *delim) +{ + t_stok stok; + t_bool inc; + + stok.c = *s++; + stok.spanp = (char *)delim; + inc = TRUE; + while ((stok.sc = *stok.spanp) != '\0') + { + if (stok.c == stok.sc) + { + stok.c = *s++; + stok.spanp = (char*)delim; + inc = FALSE; + } + if (inc == TRUE) + stok.spanp++; + else + inc = TRUE; + } + stok.ns = s; + return (stok); +} + +static char + *ft_scan_ret(char *s, char **last, char *tok, t_stok stok) +{ + if ((stok.sc = *stok.spanp++) == stok.c) + { + if (stok.c == '\0') + s = NULL; + else + s[-1] = '\0'; + *last = s; + return (tok); + } + while (stok.sc != '\0') + { + if ((stok.sc = *stok.spanp++) == stok.c) + { + if (stok.c == '\0') + s = NULL; + else + s[-1] = '\0'; + *last = s; + return (tok); + } + } + return (NULL); +} + +static char + *ft_scan_tok(char *s, const char *delim, char **last, t_stok stok) +{ + char *tok; + char *ret; + + tok = s - 1; + while (TRUE) + { + stok.c = *s++; + stok.spanp = (char *)delim; + if ((ret = ft_scan_ret(s, last, tok, stok)) != NULL) + { + return (ret); + } + } +} + +char + *ft_strtok_r(char *s, const char *delim, char **last) +{ + t_stok stok; + + if (s == NULL && (s = *last) == NULL) + return (NULL); + stok = ft_cont(s, delim); + s = stok.ns; + if (stok.c == '\0') + *last = NULL; + if (stok.c == '\0') + return (NULL); + return (ft_scan_tok(s, delim, last, stok)); +} |