| Linux / Unix Command: strtok_r |
NAME
strtok, strtok_r - extract tokens from stringsSYNOPSIS
#include <string.h> char *strtok(char *s, const char *delim); char *strtok_r(char *s, const char *delim, char **ptrptr);
DESCRIPTION
A `token' is a nonempty string of characters not occurring in the string delim, followed by \0 or by a character occurring in delim.The strtok() function can be used to parse the string s into tokens. The first call to strtok() should have s as its first argument. Subsequent calls should have the first argument set to NULL. Each call returns a pointer to the next token, or NULL when no more tokens are found.
If a token ends with a delimiter, this delimiting character is overwritten with a \0 and a pointer to the next character is saved for the next call to strtok(). The delimiter string delim may be different for each call.
The strtok_r() function is a reentrant version of the strtok() function, which instead of using its own static buffer, requires a pointer to a user allocated char*. This pointer, the ptrptr parameter, must be the same while parsing the same string.
SEE ALSO
index(3), memchr(3), rindex(3), strchr(3), strpbrk(3), strsep(3), strspn(3), strstr(3)
Important: Use the man command (% man) to see how a command is used on your particular computer.
