morse.js
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var morse = (function() {
var morseDictionary = {
'A': ".-",
'B': "-...",
'C': "-.-.",
'D': "-..",
'E': ".",
'F': "..-.",
'G': "--.",
'H': "....",
'I': "..",
'J': ".---",
'K': "-.-",
'L': ".-..",
'M': "--",
'N': "-.",
'O': "---",
'P': ".--.",
'Q': "--.-",
'R': ".-.",
'S': "...",
'T': "-",
'U': "..-",
'V': "...-",
'W': ".--",
'X': "-..-",
'Y': "-.--",
'Z': "--..",
'Å': ".--.-",
'Ä': ".-.-",
'Ö': "---.",
'1': ".----",
'2': "..---",
'3': "...--",
'4': "....-",
'5': ".....",
'6': "-....",
'7': "--...",
'8': "---..",
'9': "----.",
'0': "-----",
'É': "..-..",
'Ñ': "--.--",
'Ñ': "--.--",
'Ü': "..--",
'Û': "..--",
'Š': "----",
'ß': "...--..",
'Ç': "-.-..",
'Ŝ': "-.-..",
'?': "..--..",
'!': "..--.",
',': "--..--",
'.': ".-.-.-",
'=': "-...-",
'-': "-....-",
'(': "-.--.-",
')': "-.--.-",
'〰': "........",
'+': ".-.-.",
'@': ".--.-.",
'/': "-..-.",
'\'': ".----.",
'%': ".--..",
'"': ".-..-.",
';': "-.-.-.",
':': "---...",
'§': "...-.",
'¿': "..-.-",
'~': "-.-.-",
'#': ".-..-",
'&': ".-...",
'$': "...-..-",
'√': ".-...",
'*': ".. ..",
'¡': "--...-"
};
var wpm = 13;
var unitTime = 1.2 / wpm;
var sampleRate = 8000;
var toneHeight = 1.6;
var toneBreak = [];
var charBreak = [];
var wordBreak = [];
var short = [];
var long = [];
function codeToMorseData(code) {
var tone = [];
for (var i = 0; i < code.length; i++) {
var char = code[i];
if (i>0) tone = tone.concat(toneBreak);
if (char === '-') {
tone = tone.concat(long);
} else if (char === '.') {
tone = tone.concat(short);
}
};
return tone;
}
function wordToMorseData(word) {
var characters = word.toUpperCase().trim().split('');
var tone = [];
for (var i=0; i<characters.length; i++) {
var code = morseDictionary[ characters[i] ];
if (code) {
if (tone.length>0) tone = tone.concat(charBreak);
tone = tone.concat( codeToMorseData(code) );
}
};
return tone;
}
return {
setWPM: function(wpm) {
unitTime = 1.2 / wpm;
toneBreak = []; for (var i=0; i<unitTime*sampleRate; i++) toneBreak[i] = 128;
charBreak = []; for (var i=0; i<3*unitTime*sampleRate; i++) charBreak[i] = 128;
wordBreak = []; for (var i=0; i<7*unitTime*sampleRate; i++) wordBreak[i] = 128;
short = []; for (var i=0; i<unitTime*sampleRate; i++) short[i] = 128+Math.round(127*Math.sin(i/toneHeight));
long = []; for (var i=0; i<3*unitTime*sampleRate; i++) long[i] = 128+Math.round(127*Math.sin(i/toneHeight));
},
sentenceToMorseString: function(sentence) {
var result = "";
var tokens = sentence.trim().match(/\S+/g);
for (var i=0; i<tokens.length; i++) {
var tokenResult = "";
var characters = tokens[i].toUpperCase().trim().split('');
for (var j=0; j<characters.length; j++) {
var code = morseDictionary[ characters[j] ];
if (code) {
if (tokenResult.length>0) tokenResult += " ";
tokenResult += code;
}
};
if (result.length>0) {
result += " / ";
}
result += tokenResult;
}
return result;
},
sentenceToMorseData: function(sentence) {
var tokens = sentence.trim().match(/\S+/g);
var tone = [];
for (var i=0; i<tokens.length; i++) {
if (tone.length>0) {
tone = tone.concat(wordBreak);
}
tone = tone.concat( wordToMorseData(tokens[i]) );
};
return tone;
}
};
})();
morse.setWPM(13);