js-cadence/parser.html at master · EMGroup/js-cadence · GitHub

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<html>
	<head>
		<title>Cadence to JS translator test page</title>

		<!--script src="../js/dummyconsole.js"></script-->
		<script src="./js/lib/json2.js"></script>

		<script src="./js/lib/beautify.js"></script>

		<script>Cadence = { };</script>

		<script src="./js/language/lang.js"></script>
		<script src="./js/core/lex.js"></script>
		<script src="./js/core/parser.js"></script>
		<script src="./js/core/errors.js"></script>
		<script src="./js/core/ast.js"></script>
		<script src="./js/core/core.js"></script>
	</head>
	<body>
		<h2>Test the parser</h2>
		<textarea id="parser-input" rows="8" cols="80"></textarea>
		<p>
			<button id="parse-btn">Parse</button>
			<button id="link-btn">Link to example</button>
		</p>

		<h2>Generated Javascript</h2>
		<pre id="parser-output2"></pre>
		<h2>Generated AST</h2>
		<pre id="parser-output"></pre>
		<script>
			function getParameterByName(name) {
				name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
				var regexS = "[\\?&]"+name+"=([^&#]*)";
				var regex = new RegExp( regexS );
				var results = regex.exec( window.location.href );
				if (results == null)
					return "";
				else
					return decodeURIComponent(results[1].replace(/\+/g, " "));
			}

			function getCadenceSource() {
				return document.getElementById('parser-input').value;
			}

			function translate() {
				var cadenceSource = getCadenceSource();
				try {
					window.localStorage.setItem('cadenceSource', cadenceSource);
				} catch (e) {
					// allow localStorage to fail
				}

				var parserAST = new Cadence.Parser(cadenceSource);
				parserAST.parse();
				if (parserAST.errors.length == 0) {
					var genout = parserAST.generate();
					document.getElementById('parser-output2').innerHTML = genout;
					eval(genout);
				}
				var parserOutput = parserAST.prettyPrint();
				document.getElementById('parser-output').innerHTML = parserOutput;
			}

			var previousSource = getParameterByName("s");

			if (!previousSource) {
				try {
					previousSource = window.localStorage.getItem('cadenceSource');
				} catch (e) {
					// allow localStorage to fail
				}
			}

			if (previousSource) {
				document.getElementById('parser-input').value = previousSource;
				translate();
			}

			document.getElementById('parse-btn').addEventListener('click', function () {
				translate();
			});

			document.getElementById('link-btn').addEventListener('click', function () {
				window.location.href = window.location.origin + window.location.pathname +
					'?s=' + encodeURIComponent(getCadenceSource());
			});
		</script>
	</body>
</html>