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String tokenisation function in C
In this section, we will see how to tokenize strings in C. The C has library function for this. The C library function char *strtok(char *str, const char *delim) breaks string str into a series of tokens using the delimiter delim.
Following is the declaration for strtok() function.
char *strtok(char *str, const char *delim)
It takes two parameters. The str - The contents of this string are modified and broken into smaller strings (tokens), and delim - This is the C string containing the delimiters. These may vary from one call to another. This function returns a pointer to the first token found in the string. A null pointer is returned if there are no tokens left to retrieve.
Example Code
#include <string.h>
#include <stdio.h>
int main () {
char str[80] = "This is - www.tutorialspoint.com - website";
const char s[2] = "-";
char *token;
/* get the first token */
token = strtok(str, s);
/* walk through other tokens */
while( token != NULL ) {
printf( " %s
", token );
token = strtok(NULL, s);
}
return(0);
}Output
This is www.tutorialspoint.com website
Updated on: 30-Jul-2019
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