C++ program help!!! Write a program that reads a report ( running text ) and pro

Question

C++ program help!!!

Write a program that reads a report ( running text ) and produces a statistical summary with the following items:

Total number of words in the report

Number of unique words

Average word length

Average sentence length

An index (alphabetical listing) of all the unique words (see next page for specific format)

Input (From a file)

The report to be analyzed

Output

Write the following information to a file:

The name of the file

The statistical summary of the report ( see above )

Data Structures

A list (BST) of unique words in the report, created as the file is read.

Definitions:

Word: Sequence of letters ending in a blank, a period, an exclamation point, a question mark, a colon, a comma, a single quote, or a semicolon. You may assume that numbers do not appear in the words; they may be ignored.

Unique word: Words that are spelled the same, ignoring uppercase and lowercase distinctions.

Sentence: Words between end of markers.

SAMPLE OUTPUT

Name of file: whatever.txt

Total number of words : 1,450.

Number of unique words: 1,105.

Average word length: 6 characters.

Average sentence length: 8 words.

INDEX:

A

and

all

around

at

Explanation / Answer

#include <iostream>
#include <string>
#include <sstream>
#include <fstream>

using namespace std;

int compare(string str1, string str2){
   int size = 0;
   if (str1.size() > str2.size()){
       size = str2.size();
   }
   else{
       size = str1.size();
   }
   for (int i = 0; i < size; ++i){
       if (tolower(str1[i]) < tolower(str2[i])){
           return -1;
       }
       else if (tolower(str1[i]) > tolower(str2[i])){
           return 1;
       }
   }
   if (str1.size() < str2.size()){
       return -1;
   }
   else if (str1.size() > str2.size()){
       return 1;
   }
   else{
       return 0;
   }
   return 0;
}

struct node{
   string str;
   node *left;
   node *right;
};

class Bst{
private:
   int count;
   int total;
   node *root;
   char ch;
public:
   Bst();
   void add(string str);
   void add(node *&temp, string str);
   int size();
   double avglength();
   void print();
   void print(node *temp);
};

Bst::Bst(){
   count = 0;
   total = 0;
   ch = 'a';
   root = NULL;
}

void Bst::add(node *&temp, string str){
   if (temp == NULL){
       node *newone = new node;
       newone->str = str;
       newone->left = NULL;
       newone->right = NULL;
       temp = newone;
       total += str.size();
       count++;
       return;
   }
   else{
       if (compare(temp->str, str) == -1){
           add(temp->right, str);
       }
       else if (compare(temp->str, str) == 1){
           add(temp->left, str);
       }
       else{
           return;
       }
   }
}

void Bst::add(string str){
   if (root == NULL){
       node *newone = new node;
       newone->str = str;
       newone->left = NULL;
       newone->right = NULL;
       root = newone;
       total += str.size();
       count++;
   }
   else{
       add(root, str);
   }
}

int Bst::size(){
   return count;
}

double Bst::avglength(){
   return (double)total / count;
}

void Bst::print(node *temp){
   if (temp == NULL){
       return;
   }
   else{
       print(temp->left);
       if (tolower(temp->str[0]) == (int)ch){
           cout << temp->str << endl;
       }
       else{
           do{
               ch = (char)(((int)ch) + 1);
           } while (tolower(temp->str[0]) != (int)ch);
           cout << "..." << endl << endl;
           cout << (char)toupper(ch) << endl << endl;
           cout << temp->str << endl;
       }
       print(temp->right);
   }
}

void Bst::print(){
   cout << "A" << endl;
   print(root);
   cout << "..." << endl;
}

int main(){
   ifstream file;
   int scount = 0, count = 0, total = 0;
   Bst tree;
   string line, fname;
   cout << "Name of the file: ";
   cin >> fname;
   file.open(fname.c_str());
   if (file.is_open()){
       while (file >> line){
           string temp = "";
           for (int i = 0; i < line.size(); ++i){
               if (((int)line[i] > 64 && (int)line[i] < 91) || ((int)line[i] > 96 && (int)line[i] < 123)){
                   temp = temp + line[i];
                   if (i == line.size() - 1){
                       if (temp != ""){
                           count++;
                           total += temp.size();
                           tree.add(temp);
                           temp = "";
                       }
                   }
               }
               else if (line[i] == '.'){
                   scount++;
                   if (temp != ""){
                       count++;
                       total += temp.size();
                       tree.add(temp);
                       temp = "";
                   }
               }
               else{
                   if (temp != ""){
                       tree.add(temp);
                       count++;
                       total += temp.size();
                       temp = "";
                   }
               }
           }
       }
   }
   else{
       cout << "can not open the file" << endl;
   }
   cout << "Total Number of words: " << count << endl;
   cout << "Number of unique words: " << tree.size() << endl;
   cout << "Average world length: " << total / (double)count << endl;
   cout << "Average sentence length: " << count / (double)scount << endl;
   cout << "INDEX: " << endl;
   tree.print();
   return 0;
}

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