Edit File by line

<!doctype html>

[0] Fix | Delete

<html>

[1] Fix | Delete

<head>

[2] Fix | Delete

<title>CodeMirror: PEG.js Mode</title>

[3] Fix | Delete

[4] Fix | Delete

[5] Fix | Delete

[6] Fix | Delete

[7] Fix | Delete

[8] Fix | Delete

[9] Fix | Delete

[10] Fix | Delete

[11] Fix | Delete

</head>

[12] Fix | Delete

<body>

[13] Fix | Delete

[14] Fix | Delete

<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>

[15] Fix | Delete

[16] Fix | Delete

<ul>

[17] Fix | Delete

[18] Fix | Delete

<li><a href="../../doc/manual.html">Manual</a>

[19] Fix | Delete

[20] Fix | Delete

</ul>

[21] Fix | Delete

<ul>

[22] Fix | Delete

<li><a href="../index.html">Language modes</a>

[23] Fix | Delete

[24] Fix | Delete

</ul>

[25] Fix | Delete

</div>

[26] Fix | Delete

[27] Fix | Delete

[28] Fix | Delete

[29] Fix | Delete

[30] Fix | Delete

[31] Fix | Delete

* Classic example grammar, which recognizes simple arithmetic expressions like

[32] Fix | Delete

* "2*(3+4)". The parser generated from this grammar then computes their value.

[33] Fix | Delete

[34] Fix | Delete

[35] Fix | Delete

start

[36] Fix | Delete

= additive

[37] Fix | Delete

[38] Fix | Delete

additive

[39] Fix | Delete

= left:multiplicative "+" right:additive { return left + right; }

[40] Fix | Delete

/ multiplicative

[41] Fix | Delete

[42] Fix | Delete

multiplicative

[43] Fix | Delete

= left:primary "*" right:multiplicative { return left * right; }

[44] Fix | Delete

/ primary

[45] Fix | Delete

[46] Fix | Delete

primary

[47] Fix | Delete

= integer

[48] Fix | Delete

/ "(" additive:additive ")" { return additive; }

[49] Fix | Delete

[50] Fix | Delete

integer "integer"

[51] Fix | Delete

= digits:[0-9]+ { return parseInt(digits.join(""), 10); }

[52] Fix | Delete

[53] Fix | Delete

letter = [a-z]+</textarea></form>

[54] Fix | Delete

[55] Fix | Delete

var editor = CodeMirror.fromTextArea(document.getElementById("code"), {

[56] Fix | Delete

mode: {name: "pegjs"},

[57] Fix | Delete

lineNumbers: true

[58] Fix | Delete

});

[59] Fix | Delete

</script>

[60] Fix | Delete

[61] Fix | Delete

<p> Created by Forbes Lindesay.</p>

[62] Fix | Delete

</article>

[63] Fix | Delete

</body>

[64] Fix | Delete

</html>

[65] Fix | Delete

[66] Fix | Delete