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#! /usr/bin/python
#
# Copyright(c) 2006, James Le Cuirot <chewi@aura-online.co.uk>
# Copyright(c) 2004, Karl Trygve Kalleberg <karltk@gentoo.org>
# Copyright(c) 2004, Gentoo Foundation
#
# Licensed under the GNU General Public License, v2
#
# $Header: $
from tree import *
import parser
class BuildPropertiesParser(parser.Parser):
def parse(self, ins):
""" Parse an input stream containing an ant build.properties file. Return a
structured document represented by tree.Node
@param ins - input stream
@return tree.Node containing the structured representation
"""
lineno = 0
continued_line = False
inside_html_comment = False
attrib = ""
value = ""
root = Node()
for x in ins.readlines():
lineno += 1
x = x.strip()
if inside_html_comment and x.find("-->") != -1:
inside_html_comment = False
x = x.split("-->", 1)[0]
if x.find("<!--") != -1:
inside_html_comment = True
if inside_html_comment:
continue
if continued_line:
continued_line = False
value += x.strip("\"")
if len(value) and value[-1] == "\\":
value = value[:-1]
continued_line = True
continue
root.add_kid(Node(attrib,value))
continue
if len(x) == 0 or x[:1] == "#":
continue
x = x.split("#", 1)[0]
xs = x.split("=", 2)
if len(xs) > 1:
attrib = xs[0].strip()
value = xs[1].strip().strip("\"")
if value != "" and value[-1] == "\\":
value = value[:-1]
continued_line = True
continue
root.add_kid(Node(attrib,value))
else:
raise ParseError("Malformed line " + str(lineno))
return root
def output(self, ous, tree):
tree.output(ous, "", " = ", "")
if __name__ == "__main__":
print "This is not an executable module"
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