Question about strings

[joestevens232]

Im writing a progrem that takes input (a sentence) from the user and I about it in the proper format. All i need now is to figure out how to get the spacing correct in the sentence. I need all the strings of two or more blank spaces should be compressed to one single space. Here is what I got so far. Any ideas on how to go about doing the spacing would be greatly appreciated. Thanks!!

#include <iostream>
#include <string>
#include <cctype>
using namespace std;
int main()
{
string str;
cout << "Enter your sentence and then press enter. " << endl;
getline (cin, str);
str[0] = toupper (str[0]);
for (int i = 1; i < str.length(); i++)
{
str[i] = tolower (str[i]);
}
cout << str << endl;

}

[Banfa]

You can do this in 1 variable but I think it is easier (and requires less copying of data to do in in 2.

Initialise result string to ""
Get input string
 
For each character in the input string
    If it is not space or the previous character was not space
        Copy character to the result string
    End If
End For
 

[joestevens232]

You can do this in 1 variable but I think it is easier (and requires less copying of data to do in in 2.

Initialise result string to ""
Get input string
 
For each character in the input string
    If it is not space or the previous character was not space
        Copy character to the result string
    End If
End For
 

ALright i tried to do what you said but I'm a begginner programmer and Im not sure how to do some of the things you said: here's what i got now:

string result;
string str;
cout << "Enter your sentence and then press enter. " << endl;
getline (cin, str);
str[0] = toupper (str[0]);
for (int i = 1; i < str.length(); i++)
{
str[i] = tolower (str[i]);
}
result = "";
i = 0;
for (int i = 0; i < str.length(); i++)
if (str[i] != " " || str[i-1] != " ")
return = result;

cout << str << endl;

Im getting errors witht hat...I don't know how to copy character to result string or enter in if not a space i just guessed to use " "....Please help

[horace1]

you have a couple of errors indicated by // ** comments

    string result;
string str;
cout << "Enter your sentence and then press enter. " << endl;
getline (cin, str);
str[0] = toupper (str[0]);
for (int i = 1; i < str.length(); i++)
{
str[i] = tolower (str[i]);
}
result = "";
//i = 0;                               // ** removed
for (int i = 0; i < str.length(); i++)
   if (str[i] != ' ' || str[i-1] != ' ') // ** replaced " with '
     return = result;
cout << str << endl;
 

you now need to replace the line

return = result;
 

with code which adds the character from str[i] to result