input question

[tree_v1]

I know i can get input from a .dat file like this

do		// get maze file name 		{			 			printf("\nPlease enter a maze file name, if finished enter \"Done\"\n"); 			scanf("%s",dataName); 			if (strcmp(dataName,"Done")==0 | strcmp(dataName,"done")==0) 			{			  				printf("\nThank you for running the maze.\n\n");	// accept either "Done" or "done" 				return 0;														// and exit the program 			} 			else  			{ 				if (!strstr(dataName,".dat"))			// validate the maze file name 				{ 					if (strstr(dataName,".txt")) 					{  						i = strlen(dataName)-4; 						dataName[i]='\0'; 					} 					strcat(dataName,".dat"); 				} 				if ((mazeData=fopen(dataName,"r"))==NULL) printf("\n%s does not exist.\n",dataName); 				else break;		// if valid file, exit get name loop 			}  		} while (strcmp(dataName,"done")!=0);

but what i was wondering is if there is another way to get the same effect without using scanf?

[quzah]

The main problem you have is that you decided that everything should be on the same line, and as such, rendered everything past do as a comment.


Quzah.

[Tclausex]

I know i can get input from a .dat file like this

do        // get maze file name         
{
     printf("\nPlease enter a maze file name, if finished enter \"Done\"\n");
     scanf("%s",dataName);
     if (strcmp(dataName,"Done")==0 || strcmp(dataName,"done")==0)
     {
           printf("\nThank you for running the maze.\n\n");
              // accept either "Done" or "done"
           return 0; 
              // and exit the program             
      }
      else
      {
            if (!strstr(dataName,".dat"))     // validate the maze file name                 
            {
                     if (strstr(dataName,".txt"))
                     {
                          i = strlen(dataName)-4;
                         dataName[i]='\0';
                     }
                     strcat(dataName,".dat");
             }

             if ((mazeData=fopen(dataName,"r"))==NULL)
                 printf("\n%s does not exist.\n",dataName);
             else 
                 break;        // if valid file, exit get name loop
       }
} while (strcmp(dataName,"done")!=0);

but what i was wondering is if there is another way to get the same effect without using scanf?

Not sure if this is what you're looking for but here it is... passing filename argument to program on command-line, i.e. >maze.exe file.dat

#include <stdio.h>
#include <string.h>

int main( int argc, char *argv[] )
{
    if( argc != 2 )
    {
        printf("Usage: %s filename\n", argv[0]) ;
        return 0 ;
    }

    char fname[ 50 ] ;
    strcpy( fname, argv[1] );

printf("%s\n", fname ) ;


return 0 ;
}

The main problem you have is that you decided that everything should be on the same line, and as such, rendered everything past do as a comment.


Quzah.

That is a forum posting problem unfortunately.

[tree_v1]

I'm not really sure if that is what i'm looking for or not to be honest.

after i open up my file i have to use the rest of my code to go through the maze, and im not sure if the code you have given will do this?

[CommonTater]

I'm not really sure if that is what i'm looking for or not to be honest.

after i open up my file i have to use the rest of my code to go through the maze, and im not sure if the code you have given will do this?

Post a few lines from the maze data file... with carriage returns this time.