Here is the prompt for the program that I have to write:
We are given a Shakespeare prose:
Blow, blow, thou winter wind,
Thou art not so unkind
As man's ingratitude;
Thy tooth is not so keen
Because thou art not seen,
Although thy breath be rude.
Heigh-ho! sing heigh-ho! unto the green holly:

I have to convert the prose code into morse code using this table.

Character Code Character Code Character Code
A .- N -. 1 .----
B -... O --- 2 ..---
C -.-. P .--. 3 ...--
D -.. Q --.- 4 ....-
E . R .-. 5 .....
F ..-. S ... 6 -....
G --. T - 7 --...
H .... U ..- 8 ---..
I .. V ...- 9 ----.
J .--- W .-- 0 -----
K -.- X -..-
L .-.. Y -.--
M -- Z --..

I am just starting my work and have several confusion.
Here is my code so far (just starting).

#include<iostream>
#include<cstring>
#include <string>
#include <fstream>
using namespace std;

int main (int argc, char *argv[])
{
ifstream inStream;
ofstream outStream;

inStream.open("Shakespeare");
if (inStream.fail( ))
{
cout<<"Opening file failed."<<endl;
}

2 Questions.
1) I was thinking to use the getline function to get one line at a time and then convert each character in to morse code but I am not sure how to do that. I am not sure how would I get program to read only one line at a time (not sure if array works)?
2) I don't really know how to use the functions argc and *argv[] in my program and how does it work?

Please help me out.

thanks.

This post has been edited by jingoria: 21 Jan, 2008 - 08:16 PM

You can use a map, which essentially an array indexed by anything you want. You can index, say, "s" to "..."

Initialize you map like so:


After you initialize all of you alphabet, iterate through all of the characters in the message and add appropriate morse to a new string and give that as the output.

This post has been edited by GWatt: 21 Jan, 2008 - 08:21 PM

works like this. Let's say your program is called "myprogram.exe" and you wanted the user to specify a file to open when that program ran called "Shakespeare.txt". You could type this in at the command line:


myprogram Shakespeare.txt


This would run "myprogram.exe" and initialize the parameters as such:

int argc = 2 // this is because you typed in two things ("myprogram" and "Shakespeare.txt")
argv[0] = "myprogram"
argv[1] = "Shakespeare.txt"


argv is an array of type char* with 2 elements (since argc = 2).

If you wanted to use "argv" later in your program, you could do something like this:



That's the equivalent of this:

As Gwatt says, MAP container is good for this problem...

Here is the example, to start with: