Utils.h

//=================================================================================================
// Author:            Jerome Richards
// Assignment:        Program 7 Graphs
// File:              Utils.h
// Instructor:        Dr. Reza Sanati
// Class:             CS 2420-002
// Date Written:      08-December-2015
//
// Description
//
// Contains utility functions that may be used broadly across the software
//=================================================================================================
#pragma once
#include <string>
#include <algorithm>
#include <iomanip>
#include <sstream>
#include <locale>


class Utils
{
public:

    //-------------------------------------------------------------------------------------------------
    // Function Name:     toLower
    // Purpose:           converts input to lower case and returns the result as a new string
    //
    // Parameters:        string reference (theSting) holds the string to be converted to lowercase
    // Returns:           string result contains the converted string
    // Pre-conditions:    none
    // Post-conditions:   none
    //-------------------------------------------------------------------------------------------------
    static std::string toLower(const std::string& theString)
    {
        std::string result = theString;

        std::transform(result.begin(), result.end(), result.begin(), ::tolower);
        return result;
    }


    //-------------------------------------------------------------------------------------------------
    // Function Name:     toCurrency
    // Purpose:           converts input to the currency representation for the locale
    //
    // Parameters:        double value
    //                    bool removeDecimals
    //
    // Returns:           string result contains the converted string
    // Pre-conditions:    none
    // Post-conditions:   none
    //-------------------------------------------------------------------------------------------------
    static std::string toCurrency(double value, bool removeDecimals = true)
    {
        std::stringstream ss;
        ss.imbue(std::locale(""));

        ss << std::showbase << std::put_money(value*100.0);

        std::string result;
        ss >> result;

        if(removeDecimals)
            result = result.substr(0, result.size() - 3);

        return result;
    }
};