char * strtok ( char * str, const char * delimiters ); ... Once the terminating null character of str has been found in a call to strtok, all subsequent calls to this function with a null pointer as the first argument return a null pointer.
www.cplusplus.com/reference/clibrary/cstring/strtok/ www.cplusplus.com/reference/clibrary/cstring/strtok/
I recently worked on a project that required I use the strtok function. A problem I was running into was that the strtok was changing my original variable. I finally was able to fix my problem to get a successful copy to tokenize without changing the original.
www.cplusplus.com/forum/articles/4860/
The strtok() function returns a pointer to the next “token” in str1, where str2 contains the delimiters that determine the token. strtok() returns NULL if no token is found. In order to convert a string to tokens, the first call to strtok() should have str1 point to the string to be tokenized.
www.cppreference.com/wiki/c/string/strtok www.cppreference.com/wiki/c/string/strtok
For strtok(): [CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to the ISO C standard.
www.opengroup.org/onlinepubs/000095399/functions/strtok... www.opengroup.org/onlinepubs/000095399/functions/strtok.html
A sequence of calls to strtok() breaks the string pointed to by s1 into a sequence of tokens, each of which is delimited by a byte from the string pointed to by s2. The first call in the sequence has s1 as its first argument, and is followed by calls with a null pointer as their first argument.
www.opengroup.org/onlinepubs/007908799/xsh/strtok.html www.opengroup.org/onlinepubs/007908799/xsh/strtok.html
Note that only the first call to strtok uses the string argument. Every subsequent call to strtok only needs the token to use, as it keeps track of where it is in the current string. To start over, or to tokenize a new string you simply call strtok with the string argument again to initialize it.
php.net/manual/en/function.strtok.php php.net/manual/en/function.strtok.php
char *strtok( char *strToken, const char *strDelimit ); wchar_t *wcstok( wchar_t *strToken, const wchar_t *strDelimit ); unsigned char *_mbstok( unsigned char*strToken, const unsigned char *strDelimit ) ... The strtok function finds the next token in strToken. The set of characters in strDelimit specifies possible...
msdn.microsoft.com/en-us/library/2c8d19sb(VS.71).aspx
It's fairly common for programs to have a need to do some simple kinds of lexical analysis and parsing, such as splitting a command string up into tokens. You can do this with the strtok function, declared in the header file string.h.
www.gnu.org/s/libc/manual/html_node/Finding-Tokens-in-a... www.gnu.org/s/libc/manual/html_node/Finding-Tokens-in-a-String.html
The strtok() function parses a string into a sequence of tokens. On the first call to strtok() the string to be parsed should be specified in str. In each ... ... The strtok() function parses a string into a sequence of tokens. On the first call to strtok() the string to be parsed should be specified in str.
linux.die.net/man/3/strtok linux.die.net/man/3/strtok
The strtok() function gets the next token from string s1, where tokens are strings separated by characters from s2. To get the first token from s1, strtok() is called with s1 as its first parameter. Remaining tokens from s1 are obtained by calling strtok() with a null pointer for the first parameter.
www.mkssoftware.com/docs/man3/strtok.3.asp www.mkssoftware.com/docs/man3/strtok.3.asp