strcmp question

**voidpain()** · 08-11-2011

Part of my file:

Code:

int main(void)
{

   int done = 0;
   char line[300];

   do
   {
      printf("> ");
      fgets(line, 300, stdin);
      line[strlen(line) - 1] = '\0';

      if(strcmp(line, "area items") == 0)
      {
         areaItems(current, startPtr);
      }

      if(strcmp(line, "commands") == 0)
      {
         commands();
      }

//...etc

   }while(! done);

   return(0);
}

The code is working fine. However, I'd like the user to be able to type "grab butter" or "grab toast" or "grab [item]". Can I still use strcmp to read in grab but store the second word in a char name[10]? Or is there something much better to use than strcmp?

Hope that makes sense. Thanks

**TheBigH** · 08-11-2011

You can use strtok to parse any command the user enters into a series of tokens. Then you can use strcmp on the first token to see if it's "grab", and then do whatever you want with the remaining tokens.

**quzah** · 08-11-2011

sscanf will do what you want.

Quzah.

**AndrewHunter** · 08-11-2011

As quzah suggested, you would want an fgets / sscanf pair; which is the easiest way, IMO, to get user input. So something like this:

Code:

#include <stdio.h>

int main(void){

	char inputBuffer[100]={0};
	char word1[10]={0}, word2[10]={0};

	printf("> ");
	//grab entire lineof input
	fgets(inputBuffer, sizeof(inputBuffer), stdin);
	
	//Parse the line into, in this case 2 different strings seperated by spaces
	//it could be any format you want, e.g. %s %d %s %c, ect.
	sscanf(inputBuffer, "%s %s", word1, word2);
	
	printf("Word1:%s Word2:%s ", word1, word2);
	
	getchar();
	return (0);
}

**voidpain()** · 08-11-2011

Thanks! Got sscanf to work

**~~CommonTater~~** · 08-11-2011

If you only care if the words are present... but arent worried about the order... you could use strstr() which might be faster...

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