Wednesday, 20 March 2013

Morse Code Converter Using Javascript


Morse Code Converter Using Javascript


Have You heard about Morse Code?? Ha Ha Ha .. Well It is some kind of secret code used for communication during  WWI and WWII.. Pretty Old Technology but Guess what we can replicate the same using ASP.Net and Javascript....

What is Morse Code?

Morse code is a method of transmitting text information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment. The International Morse Code encodes the ISO basic Latin alphabet, some extra Latin letters, the Arabic numerals and a small set of punctuation and procedural signals as standardized sequences of short and long signals called "dots" and "dashes", or "dits" and "dahs". Because many non-English natural languages use more than the 26 Roman letters, extensions to the Morse alphabet exist for those languages.

Read More Over here.


How can I generate My Own Brand New Morse Code Translator?



<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Morse Code Generator</title>
    
    <script type="text/javascript" language="JavaScript">

 var table =
 {
  "A" : ".-",   "K" : "-.-",  "U" : "..-",   "5" : ".....",  "," : "--..--", "$" : "...-..-",
  "B" : "-...", "L" : ".-..", "V" : "...-",  "6" : "-....",  "?" : "..--..", " " : "*",
  "C" : "-.-.", "M" : "--",   "W" : ".--",   "7" : "--...",  "(" : "-.--.",
  "D" : "-..",  "N" : "-.",   "X" : "-..-",  "8" : "---..",  ")" : "-.--.-",
  "E" : ".",    "O" : "---",  "Y" : "-.--",  "9" : "----.",  "-" : "-....-",
  "F" : "..-.", "P" : ".--.", "Z" : "--..",  "0" : "-----",  "\"" : ".-..-.",
  "G" : "--.",  "Q" : "--.-", "1" : ".----", "/" : "-..-.",  "_" : "..--.-",
  "H" : "....", "R" : ".-.",  "2" : "..---", "+" : ".-.-.",  "'" : ".----.",
  "I" : "..",   "S" : "...",  "3" : "...--", "=" : "-...-",  ":" : "---...",
  "J" : ".---", "T" : "-",    "4" : "....-", "." : ".-.-.-", ";" : "-.-.-."
 };

 function go()
 {
  var output = "";
  var input  = document.forms[0].ALPHA.value.toUpperCase();

  for( var i = 0; i < input.length; i++ )
  {
   var temp = table[ input.charAt(i) ];
   if( temp )
   {
    if( "*" == temp )
    {
     temp = " ";
    }
    output += temp + " ";
   }
   else output += "  ";
  }

  document.forms[0].MORSE.value = output;
 }

 function ungo()
 {
  var output = "";
  var input  = document.forms[0].MORSE.value.replace( /   /g, " * " ).split( " " );

  for( var ix = 0; ix < input.length; ix++ )
  {
   for( var key in table )
   {
    if( table[key] == input[ix])
    {
     output += key;
     break;
    }
   }
  }

  document.forms[0].ALPHA.value = output;
 }
</script>
    
</head>
<body>
<h1>Morse Code Translator</h1>
<form name="entree" id="entree">
 <table>
  <tr>
   <td>Alphabet:</td>
   <td><input size="30" type="text" name='ALPHA'></td>
   <td><input type="button" value='To Morse Code' onclick="javascript:go()"></td>
  </tr>
  <tr>
   <td>Morse Code:</td>
   <td><input size="30" type="text" name="MORSE"></td>
   <td><input type="button" value='To Alphabet' onclick="javascript:ungo()"></td>
  </tr>
  <tr>
   <td colspan="3" align="center"><input type="reset" value='Clear All'></td>
  </tr>
 </table>
</form>
</body>
</html>




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