Moonglow.cpp

[heroicJ]

Here's Moonglow's format. The text file is composed of words. If a word is a number, then that is a student's score on a question, so you add it to the student's exam score. If the word is not a number, but is the word "NAME", then the next word is the student's name (Moonglow only uses first names -- last names are corporate and impersonal). If the word is "AVERAGE", then you start reading numbers until you read a word that is not a number (or is the end of the file). You average all of those numbers and add that to the score. Since Moonglow is a little scatterbrained, sometimes a number does not follow "AVERAGE." In that case, you ignore the "AVERAGE"

This is the assignment. I haven't completely gotten to the math yet, because currently on this program I am getting tons of compilation errors.

Here is a sample of what it should look like:
"UNIX> cat test-5.txt
NAME Baby-Daisy
AVERAGE 3 4 5 6
AVERAGE 7 8 9
Where's Starrlite!!
UNIX> ./moonglow < test-5.txt
Baby-Daisy 12.5"

 #include <iostream>
#include <string>
#include <sstream>
#include <vector>
using namespace std;

int main(){
    vector <string> tokens;
    string s;
    bool hitavg = false;
    bool hitname = false;
    string avgKey = "AVERAGE";
    string nameKey = "NAME";
    string sub, name;
    bool isInt = false, isAvgInt = false;
    string stuName;
    int score, avg, final, finalavg;

    cin >> s;
    istringstream iss(s);

    while(iss){
        iss >> sub;

        tokens.push_back(sub);

    }
    for(unsigned int i = 0; i < tokens.size(); i++) {
        if (hitavg){
            for (int a = i; a < tokens.size(); a ++)
            {
                if (!(tokens[i] >= '0' && tokens[i] <= '9')) return false;
                else avg += tokens[i];
            }


        }
        if (hitname){
            name = tokens[i+1];
        }

        if(tokens[i] == avgKey) hitavg = true;
        else if (tokens[i] == nameKey) hitname = true;
    }





return 0;
    }// end of main

[Smac89]

Line 32, your vector contains strings not char
Line 33, you cannot add a string to an integer (You have also not initialised this integer)

[heroicJ]

So how would I check if an entire string is greater than or = to zero, and how would I add this to avg (which should be initialized to 0).

[Smac89]

Follow the instructions given carefully, you do have control over when you need to read in a string vs when you need to read in a number.

After you read a string that is "AVERAGE", is when you can start reading numbers. Apart from this, you should only be reading strings from stdin.

Hint: the istream object (cin) has a method called eof which returns true if cin has reached the end-of-file.

HintHint: Attempting to read a string into an integer returns false.

If you choose to only read strings, then you can use some c++ string-to-int functions to convert the string to an integer and do your testing

[heroicJ]

Couple followup questions:

How would I convert a read in word to a double or an integer?

I also need to read in numbers before I hit AVERAGE and/or NAME for individual scores (these will be added to the average at the end). Should I have cin read into a string and integer at the same time? Would vectors be best?

[Smac89]

Since each file contains only one name, there is no need for vector in this case
The string class contains the following functions which convert a string to integer:
http://en.cppreference.com/w/cpp/string/basic_string/stol
Or double:
http://en.cppreference.com/w/cpp/string/basic_string/stof

while (cin >> word)
{
	if (word == "NAME")
	{
		// read the name
	}
	else if (word == "AVERAGE")
	{
                // do average calculation
	}
	else // Found numbers
	{
					
	}
	cin.clear();
}