/*This program is to find out statistics of a specified file*/
 
#include<fstream.h>
#include<iostream.h>
#include<stdlib.h>
#include<conio.h>
 
int characternumber,arraylength,nextcharacter,
numberofcharacters,totalnumberofcharacters,numberoflines;
char filename[100];
char linebuffer[100];
char characters[100]="abcdefghijklmnopqrstuvwxyz0123456789[];'#,./<>?:@~{}!\"£$%^&*()_+=-\\`¬|";
 
 
int main ()
{
    cout<<"Enter the filename: ";      //get user input
    cin.getline(filename,100);         
 
    ifstream file1(filename);          //check to see if file exists
    if (!file1.is_open())              //if file doesnt exist clear screen and restart
    {
       cout<<endl<<endl<<"file does not exist\n\n";
       system("PAUSE");
       system("CLS");
       main();       
    }
    file1.close();
 
    arraylength = (strlen(characters)-1);          //used in main loop to find # of characters**needs to be length - 1 or else it shows the number of NULL chars too
    characternumber = 0;                           //reinitialize the variables
    numberofcharacters = 0;
    totalnumberofcharacters = 0;
    numberoflines = 0;
 
    /*this section finds out how many of each character is in the file*/
 
          while (characternumber <= arraylength)   //main loop do this for each character
          {
                ifstream file(filename);                  
                while (!file.eof())                //2nd loop, goes through file 1ce for each character       
                {
                      nextcharacter = file.get();
                      if (nextcharacter == characters[characternumber])
                      {
                         numberofcharacters++;
                      }
                      else
                      {
                         if (characternumber == 0) //makes sure it calculates total # of chars 1nce
                         {
                            totalnumberofcharacters++;
                         }
                      }
                }
                cout<<characters[characternumber]<<" = "<<numberofcharacters<<"\t"; //output results in columns
                numberofcharacters = 0;              //re-initialize this variable for next character
                characternumber++;                   //get next character
                file.close();                        //close file as it is re-opened at beginning of main loop
          }    
 
          cout<<endl<<endl<<"Total number of Characters: "<<totalnumberofcharacters; //output total number of chars only 1ce
 
          //number of lines...code stops excecuting here !!!***********************
          ifstream file(filename);                       //open file
                   while (!file.eof())                   //loop till eof() is reached
                   {
                         cin.getline(linebuffer,100);    //count how many times cin.getline()
                         numberoflines++;                //needs to be used before eof()
                   }
          file.close();
          cout<<endl<<endl<<"Number of lines: "<<numberoflines; //output result
 
          /*extra features are needed like 
          number of lines: how many times do ya need to do cin.getline() before eof(), 
          filesize: need to look this up
          wordcount: if character == space or newline and character after that is not == a space or newline then tht is 1 word
          *****need lots of extra features******
          */
 
          system(filename); //open file for comparing - testing
          getch();          //keep on screen
 
    /*
    take user input on a file they want to check
    use arraylength as product of loop with incremental characternumber that starts at 0 while (characternumber <= arraylength)
    take 1st char from array and then use that to compare
    use a loop to get next char from file and compare 
    if the character matchs the 1 brought form the array increment the numberofcharacters
    when eof if reached break from loop, output number of chars and add 1 to characternumber and go through the loop again
    do this till all characters in the array have been checked and outputted
    
    next section to count the total number of chars and estimated file size
    then get actual file size
    */    
}

          //number of lines...code stops excecuting here !!!***********************
          ifstream file(filename);                       //open file
                   while (!file.eof())                   //loop till eof() is reached
                   {
                         cin.getline(linebuffer,100);    //count how many times cin.getline()
                         numberoflines++;                //needs to be used before eof()
                   }
          file.close();
          cout<<endl<<endl<<"Number of lines: "<<numberoflines; //output result