Question

C++

Write a word search program that searches an input data file for a word specified by the user. The program should display the number of times the word appears in the input data file. In addition, the program should count and display the number of grammatical characters in the input data file. Your program must do this by providing the following function:

void processFile(ifstream &inFile, string wordSearch, int &wordCount, int &grammaticalCount);

void processFile(ifstream &inFile, string wordSearch, int &wordCount, int &grammaticalCount);

Both functions should be called from main(). No non-constant global variables should be used.

Test using this txt file:

You prolly like eating lots of cake and stuff. But, if you eat

too much then you'll just be more prone to getting some cavities. Kids

especially like eating sweets and all sorts of candy cause I've never even met one that hasn't

lmao. Remember: "An apple a day keeps the doctor away!" or

"Good kids listen to their parents".

Answer 1

Please up vote ,comment if any query . Thanks for question . Be safe .

Note : check attached image for output .code compiled and tested in C++14 Code blocks IDE.

Program Plan :

1. inside processFile function read each line using ifstream object
2. now check each char between A-Z or a-z increment grammatical count.
3. countWords function separate sentence by space and inside space seprated string
4. we check for single quote for word like you'will
5. so parse by ' and match word till inbuilt function find not return -1 .
6. also toLower function return lowercase string of passed srtring

Program :

#include<iostream>
#include<fstream>
#include<string>
#include<iomanip>
#include <ctype.h>
using namespace std;

void processFile(ifstream &inFile, string wordSearch, int &wordCount, int &grammaticalCount);
int countWord(string word,string line);
string toLower(string word);

int main(int argc, char *argv[])
{
    char fileName[]={"data.txt"}; //array of file name
    int wordCount,grammaticalCount;
    string wordSearch="you";

    ifstream inFile(fileName);

    if(!inFile)
    {
        cout<<"Can not open file "<<endl;
        return 0;
    }
    else
    {
        processFile(inFile,wordSearch,wordCount,grammaticalCount);
        cout<<wordSearch<<" word found "<<wordCount<<" times."<<endl;
        cout<<"File have "<<grammaticalCount<<" grammatical characters."<<endl;
    }

    //process_file(fileName);

    return 0;

}

//this function takes a string word
//return a new word with converted in lowercase string
string toLower(string word)
{
    string newWord=""; //declare a empty string
    for(int i=0;i<word.length();i++) //run a loop from 0 to length of word
    {
        newWord+=tolower(word[i]); //convert each char into lower case
    }
    return newWord; //return a new word
}

void processFile(ifstream &inFile, string wordSearch, int &wordCount, int &grammaticalCount)
{

        wordCount=0; //first set value to zero of word count
        grammaticalCount=0; //first set grammatical count to 0

        string line; //line string

        //get each line in line string
        while (getline(inFile,line)) //read line by line
        {
            //if line is not empty proceed
            if (!line.empty()) //if line is not empty
            {
                for(int i=0;i<line.length();i++) //run a loop from 0 to length of line
                {
                    unsigned char ch=(unsigned char)line[i]; //get ASCII value of char
                    if((ch>=65 && ch<=90) || (ch>=97 && ch<=122)) //check char between A-Z or a-z
                            grammaticalCount++; //increment grammatical count
                }

                //this function takes word to find and each line as string
                //return number of times word found
                //add count to word count
                wordCount+=countWord(wordSearch,line);

            }

    }

    inFile.close(); //close file
}

//function takes how many word appeared in each line of file
int countWord(string word,string line)
{
    int pos=0; //pos =0
    int count=0;
    while(1)
    {
        //separate each sentence by space
        pos=line.find(' '); //get index of space

        if(pos==-1) //if its single word sentence
        {
            if(toLower(line)==toLower(word)) //so if word equal to word increment count
                    count++;
            break; //break from loop
        }

        else //if pos not equal -1
        {
            string newWord=line.substr(0,pos); //get a new word from 0 to pos (index of space)
            int newPos=newWord.find("'"); //after get new pos for word you'will
            //if ' found
            if(newPos!=-1)
            {
                newWord=newWord.substr(0,newPos); //get new word for you'will new word = you
                if(toLower(newWord)==toLower(word)) //check word equal to new word increment count
                    count++;
            }
            else //if word not have ' You
            {
                //we have new word separated by space check if equal to word
                if(toLower(newWord)==toLower(word))
                    count++;
            }
            //remove space string from start
            line=line.substr(pos+1);
        }
    }
    //return how many time word appears
    return count;
}

Output :

'

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