Bjarne Stroustrup “Programming Principles and Practice Using C++”
Chapter 11 Exercise 6
Using std_lib_facilities.h by Bjarne Stroustrup.
[code language=”cpp”]
// Philipp Siedler
// Bjarne Stroustrup’s PPP
// Chapter 11 Exercise 6
#include "std_lib_facilities.h"
void calculate() {
while (cin) {
string s;
string s_mod;
char quit;
cout << "enter string and I will replace punctuation with a whitespace" << endl;
if (cin >> quit && quit == ‘x’) {
break;
}
cin.putback(quit);
if (getline(cin, s)) {
for (char c : s) {
if (!ispunct(c)) {
s_mod += c;
}
else {
s_mod += " ";
}
}
cout << s_mod << endl;
}
else {
cin.clear();
cout << "enter a valid string or x to quit" << endl;
}
}
}
int main()
try
{
calculate();
keep_window_open();
}
catch (runtime_error e) {
cout << e.what() << endl;
keep_window_open();
}
catch (…) {
cout << "Exiting" << endl;
keep_window_open();
}
[/code]
Output: enter string and I will replace punctuation with a whitespace Hello world, how are you today? Hope fine as usual. Hello world how are you today Hope fine as usual enter string and I will replace punctuation with a whitespace
