How to use StringTokenizer - implementation and introduction

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[iamthejustin]

Can anyone explain to me what the below for loop does and how it works please?
void tokenize(char *line, char **words, int *nwords)
{
*nwords=1;
for(words[0]=strtok(line, " \t\n");
(*nwords<MAX_WORDS)&&(words[*nwords]=strtok(NULL, " \t\n"));
*nwords=*nwords+1
); /* empty body */
return;
}