stripping punctuation from input file stream

[asdfasdfasdf]

hi,
I'm supposed to input a string from a file, strip its punctuation from it , and put its letters into an array. Is there some type of string function that can do that?

[Sebastiani]

Is there some type of string function that can do that?

No. Have you tried anything yet? I'll give you a hint:


-create an array of the same length +1 of the original.
-loop through the string, and if you don't encounter punctuation(use ispunct() or write it by hand - easy), then copy to the second string.
-null terminate the second string.
-copy string 2 into string 1.

[lightatdawn]

Not to my knowledge. Read the string on character at a time into the new string using a loop. i.e.

char string[50];
char output[50];

//read to string here

int a = 0;
for(int i = 0; i < strlen(string); i ++)
{
   //you could do this several ways. One is to check for a valid character value:
   if ((string[i] >= 97 && string[i] <= 122) || //lowercase a-z
      (string[i] >= 65 && string[i] <= 90)) //upercase a-z
      {
         output[a] = string[i];
         a ++;
      }
}

OR

   //Alternatly you could check in the for loop like this by weeding out specific punctuation instead of only allowing characters
   if (string[i] != '.' && string[i] != '!' && string[i] != '?') //etc, etc...
   {
      output[a] = string[i];
      a ++;
   }

[endo]

check out ispunct( int ), found in <ctype.h>. It could be useful...

[asdfasdfasdf]

I fixed it. Cant believe I didn't think of this stuff before!!