#include<iostream>
#include<conio.h>
#include<fstream>
#include<ctype.h>
#include<string.h>
using namespace std;
void mainmenu();
void para()
{
ofstream fout;
fout.open("writing.txt",ios::app);
char para[100];
cout<<"ENTER CONTENT:";
cin.getline(para,100,'$');
fout<<para;
fout.close();
}
void line()
{
ofstream fout;
fout.open("writing.txt",ios::app);
char line[50],ans;
do
{
cout<<"ENTER LINE CONTENT:";
cin.ignore();
cin.getline(line,100);
fout<<line<<endl;
cout<<"DO YOU WANT TO ADD MORE:";
cin>>ans;
}while((ans=='y')||(ans=='Y'));
fout.close();
}
void character()
{
ofstream fout;
fout.open("writing.txt",ios::app);
char ch,ans;
do
{
cout<<"ENTER CONTENT:";
cin.ignore();
cin.get(ch);
fout<<ch<<" ";
cout<<"DO YOU WANT TO ADD MORE:";
cin>>ans;
}while((ans=='y')||(ans=='Y'));
fout.close();
}
void writingmenu()
{
char ans;
int ch;
do
{
system("cls");
cout<<"SUB MENU:";
cout<<"\n1.PARA WISE.";
cout<<"\n2.LINE BY LINE.";
cout<<"\n3.CHARCTER BY CHARACTER.";
cout<<"\n4.MAIN MENU.";
cout<<"\nENTER YOUR CHOICE:";
cin>>ch;
switch(ch)
{
case 1:para();
break;
case 2:line();
break;
case 3:character();
break;
case 4:mainmenu();
break;
default:cout<<"WRONG CHOICE..";
}
cout<<"DO YOU WANT TO REVISIT WRITING MENU..";
cin>>ans;
}while(ans=='y');


}
/*********************************************/
void read()
{
ifstream fin("writing.txt");
char c;
while(fin.get(c))
cout<<c;
fin.close();
}
void count()
{
ifstream fin("writing.txt");
char ch;
int a=0,l=0,s=0,t=0,v=0,c=0;
while(fin.get(ch))
{
if(isalpha(ch))
{
a++;
switch(ch)
{
case 'a':
case 'A':
case 'e':
case 'E':
case 'i':
case 'I':
case 'o':
case 'O':
case 'u':
case 'U':v++;
break;
default:c++;
}
}
else if(ch==' ')
s++;
else if(ch=='\t')
t++;
else if(ch=='\n')
l++;
}

cout<<"\nNO OF ALPHABETS:"<<a;
cout<<"\nNO OF VOWELS:"<<v;
cout<<"\nNO OF CONSONANTS:"<<c;
cout<<"\nNO OF SPACES:"<<s;
cout<<"\nNO OF TABS:"<<t;
cout<<"\nNO OF LINES:"<<l;

fin.close();
}
void toggle()
{
ifstream fin("writing.txt");
char c;

while(fin.get(c))
{
if(islower(c))
c=toupper(c);
else if(isupper(c))
c=tolower(c);
cout<<c;
}
fin.close();
}
void searchword(char word[])
{
ifstream fin("writing.txt");
char w[20];
int cnt=0;
while(fin>>w)
{
if(strcmpi(w,word)==0)
cnt++;
}
cout<<"NO OF OCCURENCE OF THE WORD "<<word<<"is/are "<<cnt<<" times.";
fin.close();
}
void searchletter(char l)
{
ifstream fin("writing.txt");
char w[20];
int cnt=0;
while(fin>>w)
{
if(w[0]==l)
cnt++;
}
cout<<"NO OF WORDs STARTING WITH "<<l<<" are "<<cnt;
fin.close();
}
void countword(int len)
{
ifstream fin("writing.txt");
char w[20];
int cnt=0;
while(fin>>w)
{
if(strlen(w)==len)
cnt++;
}
cout<<"NO OF "<<len<<" LETTER WORDS"<<" are "<<cnt;
fin.close();
}
void readingmenu()
{
char ans;
int ch;
do
{
system("cls");
cout<<"SUB MENU:";
cout<<"\n1.READ.";
cout<<"\n2.FILE STATISTICS.";
cout<<"\n3.TOGGLE CASE.";
cout<<"\n4.OCCURENCE OF A WORD.";
cout<<"\n5.WORDS STARTING FROM A LETTER.";
cout<<"\n6.NO OF WORDS.";
cout<<"\n7.MAIN MENU.";
cout<<"\nENTER YOUR CHOICE:";
cin>>ch;
switch(ch)
{
case 1:read();
break;
case 2:count();
break;
case 3:toggle();
break;
case 4: char word[15];
cout<<"\nENTER WORD TO FIND:";
cin>>word;
searchword(word);
break;
case 5:char l;
cout<<"ENTER STARTING LETTER:";
cin>>l;
searchletter(l) ;
break;
case 6:int len;
cout<<"ENTER LENGTH OF WORD:";
cin>>len;
countword(len);
break;
case 7:mainmenu();
break;
default:cout<<"WRONG CHOICE..";
}
cout<<"\nDO YOU WANT TO REVISIT READING MENU..";
cin>>ans;
}while(ans=='y');
}
/*********************************************/
void mainmenu()
{
int choice;
char ans;
do
{
system("cls");
cout<<endl<<endl;
cout<<"*****************************************************************************";
cout<<endl<<endl;
cout<<"MAIN MENU:";
cout<<"\n1.WRITING.";
cout<<"\n2.READING.";
cout<<"\nENTER YOUR CHOICE:";
cin>>choice;
switch(choice)
{
case 1:writingmenu();
break;
case 2: readingmenu();
break;
default:cout<<"INVALID CHOICE..";
}
cout<<"\nDO YOU WANT TO REVISIT MAIN MENU:";
cin>>ans;
}while(ans=='y');
}
int main()
{
mainmenu();
cout<<"\n*****************************************************************************";
getch();
return 0;
}