morse/index.html at master · RayColt/morse · GitHub

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<html>
<head>
<script type="text/javascript">
/**
 * JavaScript MorseMap
 *
 * @author Ray Colt <ray_colt@pentagon.mil>
 * @copyright Copyright (c) 2015 Ray Colt
 * @license Public General License US Army
 *
 */
	var morseMap = {
		" " : "", // SPACE (0b1)
		"!" : "101011", // -.-.--
		"\"" : "010010", // .-..-.
		"$" : "0001001", // ...-..-
		"'" : "011110", // .----.
		"(" : "10110", // -.--.
		")" : "101101", // -.--.-
		"," : "110011", // --..--
		"-" : "100001", // -....-
		"." : "010101", // .-.-.-
		"/" : "10010", // -..-.
		"0" : "11111", // -----
		"1" : "01111", // .----
		"2" : "00111", // ..---
		"3" : "00011", // ...--
		"4" : "00001", // ....-
		"5" : "00000", // .....
		"6" : "10000", // -....
		"7" : "11000", // --...
		"8" : "11100", // ---..
		"9" : "11110", // ----.
		":" : "111000", // ---...
		";" : "101010", // -.-.-.
		"=" : "10001", // -...-
		"?" : "001100", // ..--..
		"@" : "011010", // .--.-.
		"A" : "01", // .-
		"B" : "1000", // -...
		"C" : "1010", // -.-.
		"D" : "100", // -..
		"E" : "0", // .
		"F" : "0010", // ..-.
		"G" : "110", // --.
		"H" : "0000", // ....
		"I" : "00", // ..
		"J" : "0111", // .---
		"K" : "101", // -.-
		"L" : "0100", // .-..
		"M" : "11", // --
		"N" : "10", // -.
		"O" : "111", // ---
		"P" : "0110", // .--.
		"Q" : "1101", // --.-
		"R" : "010", // .-.
		"S" : "000", // ...
		"T" : "1", // -
		"U" : "001", // ..-
		"V" : "0001", // ...-
		"W" : "011", // .--
		"X" : "1001", // -..-
		"Y" : "1011", // -.--
		"Z" : "1100", // --..
		"_" : "001101", // ..--.-
		"ERR" : "00000000" // ........
	};

	var reversedMorseMap = array_flip(morseMap);

	/**
	 * Similar to array_flip in php, returns an array in flip order, <br>
	 * i.e. keys from array become values and values from array become keys. <br>
     *
	 * @param arr
	 * @return array
	 */
	function array_flip(arr) {
		var key = null;
		var tmp_arr = {};
		for (key in arr) {
			if (arr.hasOwnProperty(key))
				tmp_arr[arr[key]] = key;
		}
		return tmp_arr;
	}

	/**
	 * Similar to strtr in php, characters in 'from' will be <br>
	 * replaced by characters in 'to' in the same <br>
	 * order character by character.
	 *
	 * @param str
	 * @param from
	 * @param to
	 * @return String
	 */
	function strtr(str, from, to) {
		var out = null;
		var len = 0;
		for (var i = 0, len = str.length; i < len; i++) {
			var c = str.charAt(i);
			var p = from.indexOf(c);
			if (p >= 0) {
				if (out == null)
					out = str.split("");
				out[i] = to.charAt(p);
			}
		}
		return out != null ? out.join("") : str;
	}

	/**
	 * Get binary morse code (dit/dah) for a given character
	 *
	 * @param character
	 * @return String
	 */
	function getBinChar(character) {
		return morseMap[character];
	}

	/**
	 * Get morse code (dit/dah) for a given character
	 *
	 * @param character
	 * @return String
	 */
	function getMorse(character) {
		return strtr(morseMap[character], "01", ".-");
	}

	/**
	 * Get character for given morse code
	 *
	 * @param morse
	 * @return String
	 */
	function getCharacter(morse) {
		return reversedMorseMap[strtr(morse, ".-", "01")];
	}

	/**
	 * Get binary morse code for given string
	 *
	 * @param str
	 * @return String
	 */
	function morse_binary(str) {
		var line = "";
		for (var i = 0; i < str.length; i++) {
			var chr = str.substring(i, i + 1);
			line += getBinChar(chr.toUpperCase());
			line += " ";
		}
		return line.trim();
	}

	/**
	 * Get morse code for given string
	 *
	 * @param str
	 * @return String
	 */
	function morse_encode(str) {
		var line = "";
		for (var i = 0; i < str.length; i++) {
			var chr = str.substring(i, i + 1);
			line += getMorse(chr.toUpperCase());
			line += " ";
		}
		return line.trim();
	}

	/**
	 * Get character string for given morse code
	 *
	 * @param str
	 * @return String
	 */
	function morse_decode(str) {
		var line = "";
		var morse = null;
		var morsecodes = str.split(" ");
		for (morse in morsecodes) {
			if (!morsecodes.hasOwnProperty(morse))
				line += " ";
			var chr = getCharacter(morsecodes[morse]);
			line += chr;
		}
		return line.replace(/\s{2,}/g," ").trim();
	}

	/**
	* (\  /)
	* ( .  .)
	* Get hexadecimal morse code for given string
	*
	* @param str
	* @param modus
	* @return String
	*/
	function bin_morse_hexadecimal(str, modus)
	{
		var str1, str2;
		var a = ["2E ", "2D ", "30 ", "31 "];
		if (modus == 0) { str1 = a[0]; str2 = a[1]; };
		if (modus == 1) { str1 = a[2]; str2 = a[3]; };
		var line = morse_binary(str);
		line = line.replace(/  /g, "A");
		line = line.replace(/ /g, "K");
		line = line.replace(/0/g, str1);
		line = line.replace(/1/g, str2);
		line = line.replace(/A/g, "20 20 ");
		line = line.replace(/K/g, "20 ");
		return line.trim();
	}

	/**
	* (\  /)
	* ( .  .)
	* Get txt for given hexadecimal morse code
	*
	* @param str
	* @param modus
	* @return string
	*/
	function hexadecimal_bin_txt(str, modus)
	{
		var str1, str2;
		var a = ["2E", "2D", "30", "31"];
		if (modus == 0) { str1 = a[0]; str2 = a[1]; };
		if (modus == 1) { str1 = a[2]; str2 = a[3]; };;
		var line = str.replace(/ /g,"");
		line = line.replace(/2020/g, "  ");
		line = line.replace(/20/g, " ");
		line = line.replace(new RegExp(str1,'g'), "0");
		line = line.replace(new RegExp(str2,'g'), "1");
		return morse_decode(line.trim());
	}
</script>
</head>
<body>
<script type="text/javascript">
	function morseForm() {
	  var modus = document.querySelector('input[name="modus"]:checked').value;
	  var data =  document.getElementById("data").value;
	  if(modus == "encode")
		  document.getElementById("data").value = morse_encode(data);
	  if(modus == "decode")
		  document.getElementById("data").value = morse_decode(data);
	  if(modus == "binary_encode")
		  document.getElementById("data").value = morse_binary(data);
	  if(modus == "binary_decode")
		  document.getElementById("data").value = morse_decode(data);
	  if(modus == "encode_hex")
		  document.getElementById("data").value = bin_morse_hexadecimal(data, 0);
	  if(modus == "encode_hex_bin")
		  document.getElementById("data").value = bin_morse_hexadecimal(data, 1);
	  if(modus == "decode_hex")
		  document.getElementById("data").value = hexadecimal_bin_txt(data, 0);
	  if(modus == "decode_hex_bin")
		  document.getElementById("data").value = hexadecimal_bin_txt(data, 1);
	}
</script>
<table width="100%" border="0" cellspacing="2" cellpadding="2">
<tr>
  <td align="center"><b>Morse</b></td>
</tr>
<tr>
  <td align="center"><textarea id="data" name="data" cols="50" rows="15">ABC DEFGHIJKLMNOPQRSTUVWXYZ 12 34567890 !$'(),-./ :; =?@"</textarea></td>
</tr>
<tr>
  <td align="center"><table width="333" border="0">
      <tr>
        <td align="center"><label>
            <input type="radio" id="modus" name="modus" value="encode" checked="checked"/>
            Encode</label></td>
        <td align="center"><label>
            <input type="radio" id="modus" name="modus" value="decode" />
            Decode</label></td>
        <td align="center"><label>
            <input type="radio" id="modus" name="modus" value="binary_encode" />
            Binary Encode</label></td>
        <td align="center"><label>
            <input type="radio" id="modus" name="modus" value="binary_decode" />
            Binary Decode</label></td>
      </tr>
      <tr>
        <td align="center"><label>
            <input type="radio" id="modus" name="modus" value="encode_hex" />
            Encode Hex</label></td>
        <td align="center"><label>
            <input type="radio" id="modus" name="modus" value="decode_hex" />
            Decode Hex</label></td>
        <td align="center"><label>
            <input type="radio" id="modus" name="modus" value="encode_hex_bin" />
            Encode Hex Bin</label></td>
        <td align="center"><label>
            <input type="radio" id="modus" name="modus" value="decode_hex_bin" />
            Decode Hex Bin</label></td>
      </tr>
    </table>
    </td>
</tr>
<tr>
  <td align="center"><input type="submit" onClick="morseForm()" /></td>
</tr>
</table>
</body>
</html>