Enter text and save to file

Question

The following function creates a new text file and allows the user to input text to be saved to the file. The main issues that I\'m having troubles fixing is 1)allowing spaces b

Answer 1

Use fgets() instead of scanf() to get the input text from the user.

To do so replace this line

scanf("%s", c); 

with the following code:

if (NULL != fgets(c, sizeof(c), stdin))
{
  fprintf(pf, "%s", c);
}
else
{
  if (0 != ferror(stdin))
  {
    fprintf(stderr, "An error occured while reading from stdin\n");
  }
  else
  {
    fprintf(stderr, "EOF was reached while trying to read from stdin\n");
  }
}

---

To allow the user to read in more then one line put a loop around the code above. Doing so you need to define a condition which tells the program to stop looping:

The following example stops reading in lines when entering a single dot "." and pressing return:

do
{
  if (NULL != fgets(c, sizeof(c), stdin))
  {
    if (0 == strcmp(c, ".\n")) /* Might be necessary to use ".\r\n" if on windows. */
    {
      break;
    }

    fprintf(pf, "%s", c);
  }
  else
  {
    if (0 != ferror(stdin))
    {
      fprintf(stderr, "An error occured while reading from stdin\n");
    }
    else
    {
      fprintf(stderr, "EOF was reached while trying to read from stdin\n");
    }

    break;
  }
} while (1);