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index.html
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<!doctype html>
<html class="no-js" lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>JS Brainfuck Interpreter</title>
<link rel="stylesheet" href="stylesheets/app.css" />
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css">
<link rel="stylesheet" href="bower_components/sweetalert/lib/sweet-alert.css">
<script src="bower_components/modernizr/modernizr.js"></script>
<script src="bower_components/jquery/dist/jquery.min.js"></script>
<script src="bower_components/foundation/js/foundation.min.js"></script>
<script src="bower_components/js-url/url.min.js"></script>
<script src="bower_components/sweetalert/lib/sweet-alert.min.js"></script>
<script src="js/app.js"></script>
<style>
textarea {
font-family: Courier;
}
</style>
</head>
<body>
<iframe src="https://ghbtns.com/github-btn.html?user=mstallone&type=follow&count=true" frameborder="0" scrolling="0" width="220px" height="30px" align="right" style="margin-top: 1em; margin-right:-3.5em"></iframe>
<div class="row">
<div class="panel">
<label>Brainfuck code:
<textarea placeholder="++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++." class="larger-height" id="brainfuckCode"></textarea>
</label>
<label id="brainfuckInputLabel" class="hide">Input:
<textarea placeholder="Hello, world?" id="brainfuckInput"></textarea>
</label>
<label>Output:
<textarea placeholder="Hello World!" id="brainfuckOutput" readonly></textarea>
</label>
<div class="clearfix">
<a class="button small radius left disabled" id="runButton">Run
<!--
<span id="runningIndicator">
<i class="fa fa-spinner fa-spin"></i>
</span>
-->
</a>
<a id="clearButton">Clear Output</a>
<a class="button small radius right secondary" id="debugmodeButton">Debug Mode</a>
</div>
</div>
</div>
<script>
$(document).ready(function() {
var rawInput = "";
$('#clearButton').hide();
//$('#runningIndicator').hide();
$('#brainfuckCode').bind('input propertychange', function() {
$("#brainfuckInputLabel").hide();
if(!$('#runButton').hasClass('disabled')) $('#runButton').addClass('disabled');
if(this.value.length > 0){
$('#runButton').removeClass('disabled');
if(this.value.indexOf(",") > -1) $("#brainfuckInputLabel").show();
}
});
$('#runButton').click(function() {
rawInput = $('#brainfuckInput').val() + String.fromCharCode(0);
if(!$('#runButton').hasClass('disabled')) {
//$('#runningIndicator').show();
$('#brainfuckOutput').val(execute($('#brainfuckCode').val().replace(/\s+/g, ''))[2]).trigger('propertychange');
//$('#runningIndicator').hide();
}
});
$('#debugmodeButton').click(function() {
sweetAlert("Oops...", "Debug mode has not been implemented yet.", "error");
});
$('#brainfuckOutput').bind('input propertychange', function() {
$('#clearButton').hide();
if(this.value.length > 0){
$('#clearButton').show();
}
});
$('#clearButton').click(function() {
$('#brainfuckOutput').val("").trigger('propertychange');
});
var loopedCode = function(rawCode) {
var leftCount = 0, rightCount = 0;
for(var i = 0; i < rawCode.length; i++){
if(rawCode.charCodeAt(i) === 91) leftCount++;
else if(rawCode.charCodeAt(i) === 93) rightCount++;
if(leftCount === rightCount && leftCount !== 0) return rawCode.substring(1, i);
}
}
var execute = function(rawCode, index, data, output) {
//--//INIT\\--\\
index = index || 0;
if(!data){
data = [];
for(var i = 0; i < 10000; i++) data.push(0);
}
output = output || "";
console.log(rawCode + "\n" + index + "\n" + data);
//--//MAIN\\--\\
while(rawCode.length > 0){
var currentCharacter = rawCode.charCodeAt(0);
switch(currentCharacter){
case 43: //+
data[index]++;
if (data[index] === 256) data[index] = 0;
rawCode = rawCode.slice(1);
break;
case 45: //-
data[index]--;
if (data[index] === -1) data[index] = 255;
rawCode = rawCode.slice(1);
break;
case 44: //,
data[index] = rawInput.charCodeAt(0);
rawInput = rawInput.slice(1);
rawCode = rawCode.slice(1);
break;
case 46: //.
output += String.fromCharCode(data[index]);
rawCode = rawCode.slice(1);
break;
case 60: //<
index--;
if(index === -1) index = data.length - 1;
rawCode = rawCode.slice(1);
break;
case 62: //>
index++;
if(index === data.length) index = 0;
rawCode = rawCode.slice(1);
break;
case 91: //[
var loopCode = loopedCode(rawCode);
while(data[index] !== 0) {
var newData = execute(loopCode, index, data, output);
index = newData[0];
data = newData[1];
output = newData[2]
}
rawCode = rawCode.substring(loopCode.length + 2);
break;
default: //*
rawCode = rawCode.slice(1);
break;
}
}
return [index, data, output];
}
if($.url('?code')) {
var inputCode = $.url('?code').replace(new RegExp('%3E', 'g'), '>').replace(new RegExp('%3C', 'g'), '<').replace(/%20/g, '');
var inputInput = $.url('?input').replace(/%20/g, ' ') || "";
$('#brainfuckCode').val(inputCode).trigger('propertychange');
$('#brainfuckInput').val(inputInput).trigger('propertychange');
$('#runButton').click();
}
});
</script>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-61783730-1', 'auto');
ga('send', 'pageview');
</script>
</body>
</html>