booleanfunctions/parser.html at master · nohponex/booleanfunctions · GitHub

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<html>
	<head>
		<title>Booole Function Parser</title>
		<link rel="stylesheet" type="text/css" href="style.css" />
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8;"/>
		<meta name="description" content="Boolean algebra function parser" />
		<meta name="author" content="NohponeX" />

		<script type="text/javascript" src="parser.js"></script>
	</head>
	<body>
		<div id="input_area">
			<span>Enter logical function ( Use ! for Negation , + for logical OR, ^ FOR XOR ) :</span><br/>
			&#402;=<input type="text" id="input_box" onkeyup="keyPressedEvt(event)" value="A+!(BC)"/>
			<input type="button" value="Eval" onClick="eval();"/>
		</div>

		<div id="results">
		</div>
		<div id="footer">
			<p><a href="https://github.com/NohponeX/booleanfunctions">Created by NohponeX</a></p>
		</div>
		<script type="text/javascript">
			function keyPressedEvt( e ) {
				if (e.keyCode)
					x = e.keyCode;
				else if (e.which)
					x = e.which;
				if (x == 13) {//Enter key pressed
					eval();
				}
			}
			function eval(){
				parser(document.getElementById("input_box").value, eval_callback);
			}
			function eval_callback( err, variables, variations, TruthTableValues, TruthTableResult ){
				var result = document.getElementById("results");

				var out = "";
				//Output
				out += "<table><tr>";
				for (var i = 0; i < variables.length; i++) {
					out += "<th>" + variables[i] + "</th>";
				}
				out += "<th>&#402;</th></tr>";

				for (var i = 0; i < variations; i++) {
					var cclass = (i % 2 == 0 ? "lineA" : "lineB" );
					out += "<tr class=\"" + cclass + "\">";
					for (var v = 0; v < variables.length; v++) {
						out += "<td>" + (TruthTableValues[i][v] == true ? 1 : 0 ) + "</td>";
					}
					out += "<td class=\"result\">" + TruthTableResult[i] + "</td></tr>";
				}

				out += "</table>";

				result.innerHTML = out;
			}
		</script>
	</body>
</html>