sscanf

[paperbox005]

i know you can split strings using strtok..
but i was wondering if it was possible using sscanf..

but the trick is that i dont know how many tokens there will be in the string..
eg str = "hi there this is cool"
and i want it to print
hi
there
this
is
cool

i've tried a while loop but it gets stuck on the first word infinetley
hi
hi
hi
....

??? any ideas?

[StanleyC]

Do you need to store the strings or just print them out ? If just printing them out you dont really need to use sscanf.

How about something like this :

#include <stdio.h>

void split_up(char *string, char delimiter)
{
  for( ; *string != '\0' ; string++ )
  {
    if( *string == delimiter ) printf("\n");
    else printf("%c", *string);
  }
}

int main(void)
{
  char string[] = "This is a test";

  split_up(string, ' ');

  return 0;
}

Does this help ?

Stan

[Salem]

Use the "%n" conversion to tell you how many characters have been processed

Something like

char *p = str;
int n;
while ( sscanf( p, "%s%n", word, &n ) == 1 ) {
  printf( "word=%s\n", word );
  p += n;
}

Note: %n does NOT increment the return result of sscanf()