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copied!<p>As pib mentioned, <a href="http://code.google.com/p/pynarcissus/" rel="noreferrer">pynarcissus</a> is a Javascript tokenizer written in Python. It seems to have some rough edges but so far has been working well for what I want to accomplish.</p> <p>Updated: Took another crack at pynarcissus and below is a working direction for using PyNarcissus in a visitor pattern like system. Unfortunately my current client bought the next iteration of my experiments and have decided not to make it public source. A cleaner version of the code below is on gist <a href="https://gist.github.com/1598830/495dc623541ffe3f5a95d6822b9b42cab09def1b" rel="noreferrer">here</a></p> <pre><code>from pynarcissus import jsparser from collections import defaultdict class Visitor(object): CHILD_ATTRS = ['thenPart', 'elsePart', 'expression', 'body', 'initializer'] def __init__(self, filepath): self.filepath = filepath #List of functions by line # and set of names self.functions = defaultdict(set) with open(filepath) as myFile: self.source = myFile.read() self.root = jsparser.parse(self.source, self.filepath) self.visit(self.root) def look4Childen(self, node): for attr in self.CHILD_ATTRS: child = getattr(node, attr, None) if child: self.visit(child) def visit_NOOP(self, node): pass def visit_FUNCTION(self, node): # Named functions if node.type == "FUNCTION" and getattr(node, "name", None): print str(node.lineno) + " | function " + node.name + " | " + self.source[node.start:node.end] def visit_IDENTIFIER(self, node): # Anonymous functions declared with var name = function() {}; try: if node.type == "IDENTIFIER" and hasattr(node, "initializer") and node.initializer.type == "FUNCTION": print str(node.lineno) + " | function " + node.name + " | " + self.source[node.start:node.initializer.end] except Exception as e: pass def visit_PROPERTY_INIT(self, node): # Anonymous functions declared as a property of an object try: if node.type == "PROPERTY_INIT" and node[1].type == "FUNCTION": print str(node.lineno) + " | function " + node[0].value + " | " + self.source[node.start:node[1].end] except Exception as e: pass def visit(self, root): call = lambda n: getattr(self, "visit_%s" % n.type, self.visit_NOOP)(n) call(root) self.look4Childen(root) for node in root: self.visit(node) filepath = r"C:\Users\dward\Dropbox\juggernaut2\juggernaut\parser\test\data\jasmine.js" outerspace = Visitor(filepath) </code></pre>

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