Thread: Reversing String from .txt ignoring special characters

The .txt file says "The Homework is due on Friday. Good$?Luck!"

Console:
The Homework 1 is due on Friday. Good$?Luck!
ehT krowemoH 1 si eud no .yadirF !kcuL?$dooG
It should be like this: ehT krowemoH si eud no yadirF. dooG$?kcuL!
I'm trying to get the program to ignore special characters, but am struggling as to where to add an if statement.

Code:

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

void reverse_string(char*);
void reverse_words(char*);

int main()
{

FILE *fp;
char Input[255];
fp = fopen("test.txt", "r");
fgets(Input, 255, (FILE*)fp);
printf("%s\n", Input);
reverse_words(Input);
printf("%s", Input);

  return 0;
}

void reverse_words(char *s) {
  char b[100], *t, *z;
  int c = 0;

  t = s;

  while(*t) {                           //processing complete string
    while(*t != ' ' && *t != '\0') {    //extracting word from string
      b[c] = *t;
      t++;
      c++;
    }
    b[c] = '\0';
    c = 0;

    reverse_string(b);        // reverse the extracted word

    z = b;

    while (*z) {    //copying the reversed word into original string
      *s = *z;
      z++;
      s++;
    }
     if (*s == ' ') //Skipping spaces
        {
            s++;
        }
    t = s;                              // pointing to next word
}
}

void reverse_string(char *t) {
  int l, c;
  char *e, s;
  l = strlen(t);
  e = t + l - 1;
  for (c = 0; c < l/2; c++) {
    s  = *t;
    *t = *e;
    *e = s;
    t++;
    e--;
    }
}

while(*t != ' '&& *t != '\0')
if(*s == ' ')

I tried adding *s/t || '$' to these lines, but that didnt seem to work