C++ Question Reading a scenario line with 'n' variables

[Hlynkacg]

As the title suggests, I'd like some help with parsing scenario files.

I know how to use sscanf() to read a known # of variables off a line, but how would I go about adapting it to an unknown number of variables?

The context is as follows. I currently have a std::map container that is used to store all of my spacecraft's panel elements using their active area ids. The save function generates a string of number pairs that contain the id and state of each panel element currently declared. Because the string gets longer or shorter depending on the number of elements declared I have to keep going back and modifying ParseScenarioLine() function each time an element is added or commented out which is both annoying and time consuming.

I I'd like to be able to write the "ParseScenarioLine()" function once rather having to modify it each time a panel element is added or removed but I'm not sure how.

 

[GLS]

Checkout the strtok function.

 

[Hlynkacg]

Ok that looks promising, If I'm understanding it correctly, the following code will populate the "input" array with the integers found.

int tmp = 0;
int count = 0;
int input[1024];

char * token;
token = strtok(line, " ,.-");
while (token != NULL)
{
   if (sscanf(token, "%d", &tmp) > 0)
   {
      input[count++] = tmp;
   }

   token = strtok(NULL, " ,.-");
}

...and from there step through the array using a standard "for" loop. Have I missed anything?

 

[GLS]

Ok that looks promising, If I'm understanding it correctly, the following code will populate the "input" array with the integers found.

int tmp = 0;
int count = 0;
int input[1024];

char * token;
token = strtok(line, " ,.-");
while (token != NULL)
{
   if (sscanf(token, "%d", &tmp) > 0)
   {
      input[count++] = tmp;
   }

   token = strtok(NULL, " ,.-");
}

...and from there step through the array using a standard "for" loop. Have I missed anything?

That should work.

 

[Hlynkacg]

Got it up and running, thank you again