Question

Program a clean_string function that combines both the convert_lower and remove_punct functionality in one function. In other words, take a string as a parameter and return a clean version of the string that has no punctuation, no spaces and is all lower case.

#include <iostream>
#include <string>

using namespace std;

// TODO: Add your clean_string function here

int main()
{
string line;
  
getline(cin, line);
while(line != "quit")
{
  
cout << clean_string(line) << ": " << line << endl;
getline(cin, line);
  
}
  
return 0;
}

CODE: C++

Answer 1

string clean_string(string str)
{

// removes punctuations
   for (int i = 0, len = str.size(); i < len; i++)
{
if (ispunct(str[i]))
{
str.erase(i--, 1);
len = str.size();
}
}
cout << str << endl;
  
//Converts to lowercase
int i=0;
while(str[i]!='\0')
{
if(str[i]>='A' && str[i]<='Z'){
str[i]=str[i]+32;
}
++i;
}
cout << str << endl;
  
//removes blank spaces
int len = str.size();
   for(int i = 0; i < len; i++) {
if (str[i] == ' ') {
for (int j = i; j < len; j++)
str[j] = str[j+1];
len--;
}
}
return str;
}

If you face any problem please comment