计算C中的行，数字和字符

Question

I'm new to C and I got an assignment today that requires that I read text in from a file, count the number of lines, characters, and words, and return it in a specific format.

Just to be clear - I need to read in this text file:

"I must not fear.
Fear is the mind-killer.
Fear is the little-death that brings total obliteration.
I will face my fear.
I will permit it to pass over me and through me.
And when it has gone past I will turn the inner eye to see its path.
Where the fear has gone there will be nothing... only I will remain"
  Litany Against Fear, Dune by Frank Herbert

and have it output like so:

1)"I must not fear.[4,17]
2)Fear is the mind-killer.[4,24]
3)Fear is the little-death that brings total obliteration.[8,56]
4)I will face my fear.[5,20]
5)I will permit it to pass over me and through me.[11,48]
6)And when it has gone past I will turn the inner eye to see its path.[16,68]
7)Where the fear has gone there will be nothing... only I will remain"[13,68]
8)      Litany Against Fear, Dune by Frank Herbert[7,48]

Now, I've written something that will accept the file, it counts the number of lines properly, but I have 2 major issues - 1. How do I get the text from the file to appear in the output? I can't get that at all. My word count doesn't work at all, and my character count is off too. Can you please help?

#include <stdio.h>

#define IN 1
#define OUT 0

void main()
{
    int numChars = 0;
    int numWords = 0;
    int numLines = 0;
    int state = 0;
    int test = 0;

    FILE *doesthiswork;

    doesthiswork = fopen("testWords.in", "r");
    state = OUT;

    while ((test = fgetc(doesthiswork)) != EOF) 
    {
        ++numChars;
        if ( test == '\n') 
        {
            ++numLines;
            if (test == ' ' || test == '\t' || test == '\n')
            {      
                state = OUT;
            } 
            else if (state == OUT)
            {
                state = IN;
                ++numWords;
            }

         }
         printf("%d) I NEED TEXT HERE. [%d %d]\n",numLines, numWords, numChars);
     }

}

Answer 1

1. It will be better if you use getline() function to read each line from the file.

2. And after reading the line process it using strtok() function. With this you will get the number of words in the line and save it in a variable.

3. Then process each variable and get the number of characters.

4. Output the line number, number of words and the number of characters.

Then read another line and so on.

Answer 2

1. How do I get the text from the file to appear in the output?
   It should be stored there by preparing a buffer.

2. My word count doesn't work at all, and my character count is off too.
   Order in which the test is wrong.

fix like this:

#include <stdio.h>

#define IN  1
#define OUT 0

int main(){
    int numChars = 0;
    int numWords = 0;
    int numLines = 0;
    int state = OUT;
    int test;
    char buffer[1024];
    int buff_pos = 0;
    FILE *doesthiswork;

    doesthiswork = fopen("data.txt", "r");
    state = OUT;

    while((test = fgetc(doesthiswork)) != EOF) {
        ++numChars;
        buffer[buff_pos++] = test;
        if(test == ' ' || test == '\t' || test == '\n'){
            state = OUT;
            if(test == '\n') {
                ++numLines;
                --numChars;//no count newline
                buffer[--buff_pos] = '\0';//rewrite newline
                printf("%d)%s[%d,%d]\n", numLines, buffer, numWords, numChars);
                buff_pos = 0;
                numWords = numChars = 0;
            }
         } else {
            if(state == OUT){
                state = IN;
                ++numWords;
            }
         }
    }
    fclose(doesthiswork);
    if(buff_pos != 0){//Input remains in the buffer.
        ++numLines;
        buffer[buff_pos] = '\0';
        printf("%d)%s[%d,%d]\n", numLines, buffer, numWords, numChars);
    }
    return 0;
}