Code for parsimonious issue #110

hello.py

from parsimonious import Grammar, NodeVisitor
from parsimonious.grammar import RuleVisitor

class FoamConfigFileParser(NodeVisitor):
	"""docstring for FoamConfigFileParser."""

	grammar = Grammar(
	r"""
	body  		 	 = spacing declaration_list spacing
	declaration_list = ( spacing ( declaration / struct )? )*
	declaration 	 = identifier spacing value ";"
	struct			 = identifier spacing "{" declaration_list* "}"
	identifier		 = ~"[a-zA-Z]+"
	value 			 = text / number
	spacing			 = ( comment / EndOfLine / Space )*
	Space			 = ~"[ \t]*"
	EndOfLine		 = ~"[\n\r]"
	comment		 	 = ~"(/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+/)|(//([^\r\n])*)"
	number			 = ~"([-]?[0-9]*)(([.][0-9]+)|([e][+-][0-9]+))?"
	text 			 = ~"[a-zA-Z_]+"
	""")

	def __init__(self):
		super(FoamConfigFileParser, self).__init__()

	def visit_body(self, node, visited_children):
		print "the body"

	def visit_identifier(self, node, visited_children):
		print "This is the identifier ", node.text

	def visit_spacing(self, node, visited_children):
		print "Found spacing token"

	def visit_comment(self, node, visited_children):
		pass

	def parse(self, text):
		tree = self.grammar.parse(text)
		#print tree

		FoamConfigFileParser().visit(tree)

#programFile = open("program.foam")
parser = FoamConfigFileParser()
#parser.parse(programFile.read())
parser.parse("""/*--------------------------------*- C++ -*----------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | foam-extend: Open Source CFD                    |
|  \\    /   O peration     | Version:     3.0                                |
|   \\  /    A nd           | Web:         http://www.extend-project.de       |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      fvSolution;
}""")