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Troy Melhase
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Initial checkin. Copied from ibpy.melhase.net ast_branch.
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‎java2python/LICENSE‎

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‎java2python/Makefile‎

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.PHONY: all clean lib
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all: lib
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clean:
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rm -f *.pyo
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rm -f *.pyc
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cd lib && $(MAKE) clean
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lib:
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cd lib && $(MAKE)

‎java2python/README‎

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‎java2python/bin/java_to_python‎

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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import optparse
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import os.path
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import sys
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from lib.lexer import Lexer
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from lib.parser import Parser
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from lib.walker import Walker
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from lib.sourcetypes import Module, set_config
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try:
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import psyco
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except (ImportError, ):
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pass
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else:
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psyco.full()
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def transform(options):
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lexer_args = [options.inputfile, ] if options.inputfile else []
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L = Lexer(*lexer_args)
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P = Parser(L)
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W = Walker()
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try:
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P.compilationUnit()
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except (Exception, ), exc:
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print '*** exception while parsing:'
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print exc
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return 1
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ast = P.getAST()
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if not ast:
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print '*** error: no AST generated.'
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return 2
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filein = fileout = filedefault = '-'
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if options.inputfile:
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filein = os.path.basename(options.inputfile)
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if options.outputfile:
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fileout = os.path.basename(options.outputfile)
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elif fileout != filedefault:
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fileout = '%s.py' % (os.path.splitext(filein)[0])
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if fileout == filedefault:
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output = sys.stdout
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else:
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output = open(fileout, 'w')
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set_config(options.configs)
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M = Module(filein, fileout)
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W.walk(ast, M)
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print >> output, M
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return 0
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def cli_options(argv):
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parser = optparse.OptionParser(version='%prog 0.1')
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parser.add_option('-i', '--input', dest='inputfile',
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help='read INPUTFILE',
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metavar='INPUTFILE', default=None)
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parser.add_option('-o', '--output', dest='outputfile',
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help='write OUTPUTFILE',
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metavar='OUTPUTFILE', default=None)
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parser.add_option('-c', '--config', dest='configs',
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help='use CONFIG (multiple allowed)',
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metavar='CONFIG', default=[],
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action='append')
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options, args = parser.parse_args(argv)
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return options, args
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if __name__ == '__main__':
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options, args = cli_options(sys.argv)
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ret = transform(options)
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sys.exit(ret)
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‎java2python/bin/print_java_ast‎

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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from antlr import ASTVisitor
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from lib import lexer
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from lib import parser
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class Printer(ASTVisitor):
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def visit(self, node, level=0):
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if not node:
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return
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txt = node.getText()
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typ = node.getType()
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print '%s%s:%s' % (' '*level, typ, txt, )
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self.visit(node.getFirstChild(), level+1)
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if typ in (parser.CLASS_DEF, parser.PACKAGE_DEF, parser.IMPORT):
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print
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self.visit(node.getNextSibling(), level)
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def show(filename):
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if not filename:
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args = []
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else:
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args = [filename, ]
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L = lexer.Lexer(*args)
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P = parser.Parser(L)
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P.setFilename(L.getFilename())
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try:
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P.compilationUnit()
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except (Exception, ), exc:
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print '*** exception while parsing:'
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print exc
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return 1
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ast = P.getAST()
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ast = P.getAST()
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if not ast:
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print '*** error: no AST generated.'
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return 2
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printer = Printer()
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printer.visit(ast)
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return 0
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if __name__ == '__main__':
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import sys
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import psyco
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psyco.full()
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try:
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name = sys.argv[1]
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except (IndexError, ):
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name = None
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ret = show(name)
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sys.exit(ret)

‎java2python/lib/Makefile‎

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.PHONY: all clean
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all: parser.py lexer.py walker.py
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lexer.py: java.g
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antlr java.g
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parser.py: java.g
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antlr java.g
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walker.py: walker.g lexer.py
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antlr walker.g
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clean:
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rm -f *.pyo
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rm -f *.pyc
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rm -rf lexer.py
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rm -rf parser.py
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rm -rf walker.py
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rm -rf walkerTokenTypes.txt
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rm -rf JavaTokenTypes.txt

‎java2python/lib/__init__.py‎

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‎java2python/lib/defaultconfig.py‎

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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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headings = {
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'Contract.java' : [
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'from helpers import *',
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],
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'ContractDetails.java' : [
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'from overloading import overloaded',
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'from Contract import Contract',
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],
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'ScannerSubscription.java' : [
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'from helpers import *',
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],
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'ExecutionFilter.java': [
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'from overloading import overloaded',
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],
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}
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features = {
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'ContractDetails.java' : 'rename strip frobinate',
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}
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defaults = {
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'writemods':False
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}
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globalSubs = [
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(r'(\.self\.)', '.'),
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(r'String\.valueOf\((.*?)\)', r'str(\1)'),
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(r'System\.out\.println\((.*?)\)', r'print \1'),
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(r'(.*?)\.equals\((.*?)\)', r'\1 == \2'),
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(r'(.*?)\.equalsIgnoreCase\((.*?)\)', r'\1.lower() == \2.lower()'),
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(r'if self == p_other:', r'if self is p_other:'),
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(r'([\w.]+)\.size\(\)', r'len(\1)'),
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(r'(\w+)\.get\((.*?)\)', r'\1[\2]'),
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]

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