⚡ add proper support for numerals and symbols, fixes #3

main.js

@@ -1,19 +1,21 @@
 (function () {
   "use strict";
-  var words, inputElement, outputElement;
+  var symbols, inputElement, outputElement;
 
   function translate(input) {
-    var i, length, output, key, a = 'a'.charCodeAt(0), z = 'z'.charCodeAt(0);
+    var i, length, output, key;
     input = input.toLowerCase();
     output = "";
     length = input.length;
     for (i = 0; i < length; i += 1) {
-      key = input.charCodeAt(i) - a;
-      if (key >= 0 && key <= 26) {
-        if (i > 0) {
-          output += " ";
-        }
-        output += words[key];
+      key = input.charAt(i);
+      if (i > 0) {
+        output += " ";
+      }
+      if (symbols.hasOwnProperty(key)) {
+        output += symbols[key];
+      } else {
+        output += key;
       }
     }
     return output;
@@ -24,7 +26,79 @@
   }
 
   function init() {
-    words = [ "Alfa", "Bravo", "Charlie", "Delta", "Echo", "Foxtrot", "Golf", "Hotel", "India", "Juliett", "Kilo", "Lima", "Mike", "November", "Oscar", "Papa", "Quebec", "Romeo", "Sierra", "Tango", "Uniform", "Victor", "Whiskey", "X-ray", "Yankee", "Zulu" ];
+    symbols = {
+      'a': 'Alfa',
+      'b': 'Bravo',
+      'c': 'Charlie',
+      'd': 'Delta',
+      'e': 'Echo',
+      'f': 'Foxtrot',
+      'g': 'Golf',
+      'h': 'Hotel',
+      'i': 'India',
+      'j': 'Juliett',
+      'k': 'Kilo',
+      'l': 'Lima',
+      'm': 'Mike',
+      'n': 'November',
+      'o': 'Oscar',
+      'p': 'Papa',
+      'q': 'Quebec',
+      'r': 'Romeo',
+      's': 'Sierra',
+      't': 'Tango',
+      'u': 'Uniform',
+      'v': 'Victor',
+      'w': 'Whiskey',
+      'x': 'X-ray',
+      'y': 'Yankee',
+      'z': 'Zulu',
+      '0': 'Zero',
+      '1': 'One',
+      '2': 'Two',
+      '3': 'Three',
+      '4': 'Four',
+      '5': 'Five',
+      '6': 'Six',
+      '7': 'Seven',
+      '8': 'Eight',
+      '9': 'Nine',
+      ' ': 'Space',
+      '.': 'Dot',
+      ',': 'Comma',
+      ';': 'Semicolon',
+      ':': 'Colon',
+      '?': 'Question-Mark',
+      '!': 'Exclamation-Mark',
+      '@': 'At-Sign',
+      '&': 'Ampersand',
+      '"': 'Double-Quotation-Mark',
+      '': 'Apostrophe',
+      '-': 'Dash',
+      '/': 'Forward-Slash',
+      '\\': 'Backslash',
+      '(': 'Left-Parenthesis',
+      ')': 'Right-Parenthesis',
+      '[': 'Left-Square-Bracket',
+      ']': 'Right-Square-Bracket',
+      '{': 'Left-Curly-Bracket',
+      '}': 'Right-Curly-Bracket',
+      '<': 'Left-Angle-Bracket',
+      '>': 'Right-Angle-Bracket',
+      '|': 'Pipe',
+      '°': 'Degree-Symbol',
+      '*': 'Asterisk',
+      '+': 'Plus-Sign',
+      '=': 'Equal-Sign',
+      '#': 'Number-Sign',
+      '§': 'Section-Sign',
+      '$': 'Dollar-Sign',
+      '€': 'Euro-Sign',
+      '~': 'Tilde',
+      '_': 'Underscore',
+      '%': 'Percent-Sign',
+      '^': 'Caret'
+    };
     inputElement = document.getElementById("inputElement");
     outputElement = document.getElementById("outputElement");