Question

c program that counts the number of characters, words and lines from standard input until EOF. attached is what i Have so far but its not working ?.

about shell redirection Requirements 1. Write a C program that counts the number of characters, words and lines read from standard Input until EOF Is reached. 2. Assume the Input is ASCII text of any length. 3. Every byte read from stdin counts as a character except EOF 4. Words are defined as contiguous sequences of letters (a through z, A through Z) and the apostrophe (' value 39 decimal) separated by any character outside these ranges. 5. Lines are defined as contiguous sequences of characters separated by newline characters (n'). 6. Characters beyond the final newline character will not be Included In the line count. 7.On reaching EOF, use this output command: printf luslu slu\n", charcount , wordcount , linecount ) Where charcount, wordcount and linecount are all of type unsigned long int. You may need these large types to handle long documents. Guide You may find the standard library function getchar() useful. Check It out onlin or read Its manpage. There's a handy standard program called wc that does a simlar Job, but it does not match the requlrements exactly (it Is a little more clever about word boundarles and will sometimes count fewer words than our simple program). Your program should agree with wc's character and line counts, as the logic for those Is the same. Escape characters This Q&A on StackOverflow glves advice on representing the apostrophe character using an escape sequence. StackOverflow Is very useful Indeed.

Answer 1

Solution

Try this code

#include <stdio.h>
int main( )
{

unsigned long int charcount=0;
   unsigned long int wordcount=0;
  unsigned long int linecount=0;
int word=1;
char input;
while( (input=getchar())!= EOF )
{
   charcount=charcount+1;
   if (input=='\n')
   {
       linecount=linecount+1;
   word=1;
   }
  
   else if ((input>='a' && input<='z')||(input>='A' && input<='Z')||input=='\'')
   {
      
       if (word==1)
       {
           wordcount=wordcount+1;
           word=0;
       }
      
   }
       else
       {
           word=1;
       }
  
}  
printf( "%lu %lu %lu\n", charcount, wordcount, linecount );
return 0;       
}      

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