Merge branch 'master' of https://github.com/codeIIEST/Algorithms into sort_doc

Author: imVivekGupta

Security Algorithms/Cryptography/MorseCode/morseCode_decoder.cpp

@@ -0,0 +1,101 @@
+//C++ implemention of morse code decoding
+#include <iostream>
+#include<string>
+#include <iomanip>
+#include <map> //For map data structure
+using namespace std;
+
+//function for creating map structure
+map<string,string> createMap()
+{
+    // Decalaring map structure and Defination of map
+    map<string, string> decrypt;
+    decrypt[".-"] = "A";
+    decrypt["-..."] = "B";
+    decrypt["-.-."] = "C";
+    decrypt["-.."] = "D";
+    decrypt["."] = "E";
+    decrypt["..-."] = "F";
+    decrypt["--."] = "G";
+    decrypt["...."] = "H";
+    decrypt[".."] = "I";
+    decrypt[".---"] = "J";
+    decrypt["-.-"] = "K";
+    decrypt[".-.."] = "L";
+    decrypt["--"] = "M";
+    decrypt["-."] = "N";
+    decrypt["---"] = "O";
+    decrypt[".--."] = "P";
+    decrypt["--.-"] = "Q";
+    decrypt[".-."] = "R";
+    decrypt["..."] = "S";
+    decrypt["-"] = "T";
+    decrypt["..-"] = "U";
+    decrypt["...-"] = "V";
+    decrypt[".--"] = "W";
+    decrypt["-..-"] = "X";
+    decrypt["-.--"] = "Y";
+    decrypt["--.."] = "Z";
+    decrypt[".----"] = "1";
+    decrypt["..---"] = "2";
+    decrypt["...--"] = "3";
+    decrypt["....-"] = "4";
+    decrypt["....."] = "5";
+    decrypt["-...."] = "6";
+    decrypt["--..."] = "7";
+    decrypt["---.."] = "8";
+    decrypt["---."] = "9";
+    decrypt["-----"] = "0";
+    return decrypt;
+}
+
+map<string, string> decrypt=createMap();
+// decryption Function
+void decryption(string msg)
+{
+    string plain = "", tempPlain;
+    for (int i = 0; i < msg.size(); i++)
+    {
+        if (msg[i] != ' ' &&  msg[i] != '\t' && msg[i] != '\n')
+        {
+            tempPlain.append(1, msg[i]);
+        }
+        if ( msg[i] == ' ' || i==msg.size()-1)
+        {
+            plain=plain +decrypt[tempPlain];
+            tempPlain="";
+        }
+        if(msg[i] == '\t' || msg[i] =='\n')
+        {
+            plain=plain +decrypt[tempPlain];
+            tempPlain="";
+            plain += " ";
+
+        }
+    }
+    cout <<"Decrypted Code=:"<< plain<<endl;
+}
+//Driver program
+int main()
+{
+    string input = "";
+    char c;
+    cout<<"Keep spacing as follows and end morse code 'q' character.\n";
+    cout<<"----------------------------------------------------------------\n";
+    cout<<setw(20)<<" |"<<setw(20)<<" Morse Spacing |"<<setw(25)<<"This Program Spacing |\n";
+        cout<<"----------------------------------------------------------------\n";
+
+    cout<<setw(20)<<"Letter to Letter |"<<setw(20)<<"Three dits |"<<setw(25)<<"Single Space |\n";
+    cout<<setw(20)<<"Word to Word |"<<setw(20)<<"Five dits |"<<setw(25)<<"Tab(key) |\n";
+    cout<<"----------------------------------------------------------------\n";
+
+    cout<<"Enter Morse Code: ";
+    while (cin.get(c) && c != 'q')
+    {
+        input.append(1, c);
+    }
+    cout << "\nInput=" << input << endl;
+    //Calling Function
+    decryption(input);
+    return 0;
+}