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66 lines
1.8 KiB
66 lines
1.8 KiB
<!doctype html> |
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<html> |
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<head> |
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<title>CodeMirror: PEG.js Mode</title> |
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<meta charset="utf-8"/> |
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<link rel=stylesheet href="../../doc/docs.css"> |
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<link rel="stylesheet" href="../../lib/codemirror.css"> |
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<script src="../../lib/codemirror.js"></script> |
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<script src="../javascript/javascript.js"></script> |
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<script src="pegjs.js"></script> |
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<style type="text/css">.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}</style> |
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</head> |
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<body> |
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<div id=nav> |
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<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a> |
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<ul> |
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<li><a href="../../index.html">Home</a> |
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<li><a href="../../doc/manual.html">Manual</a> |
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<li><a href="https://github.com/codemirror/codemirror">Code</a> |
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</ul> |
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<ul> |
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<li><a href="../index.html">Language modes</a> |
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<li><a class=active href="#">PEG.js Mode</a> |
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</ul> |
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</div> |
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<article> |
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<h2>PEG.js Mode</h2> |
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<form><textarea id="code" name="code"> |
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/* |
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* Classic example grammar, which recognizes simple arithmetic expressions like |
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* "2*(3+4)". The parser generated from this grammar then computes their value. |
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*/ |
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start |
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= additive |
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additive |
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= left:multiplicative "+" right:additive { return left + right; } |
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/ multiplicative |
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multiplicative |
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= left:primary "*" right:multiplicative { return left * right; } |
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/ primary |
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primary |
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= integer |
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/ "(" additive:additive ")" { return additive; } |
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integer "integer" |
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= digits:[0-9]+ { return parseInt(digits.join(""), 10); } |
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letter = [a-z]+</textarea></form> |
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<script> |
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), { |
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mode: {name: "pegjs"}, |
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lineNumbers: true |
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}); |
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</script> |
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<h3>The PEG.js Mode</h3> |
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<p> Created by Forbes Lindesay.</p> |
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</article> |
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</body> |
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</html>
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