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# -*- coding: utf-8 -*-
#
# AWL simulator - utility functions
#
# Copyright 2012-2014 Michael Buesch <m@bues.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from __future__ import division, absolute_import, print_function, unicode_literals
import sys
import os
# Convenient operating system identifiers
if os.name == "java":
import java.lang.System
__osName = java.lang.System.getProperty("os.name").lower()
osIsWindows = __osName.startswith("windows")
osIsPosix = not osIsWindows
else:
osIsWindows = os.name == "nt" or os.name == "ce"
osIsPosix = os.name == "posix"
# isPyPy is True, if the interpreter is PyPy.
isPyPy = "PyPy" in sys.version
# isJython is True, if the interpreter is Jython.
isJython = sys.platform.lower().startswith("java")
# isIronPython is True, if the interpreter is IronPython
isIronPython = "IronPython" in sys.version
# isCython is True, if the interpreter is Cython
isCython = False #@nocy
#isCython = True #@cy
# isWinStandalone is True, if this is a Windows standalone package (py2exe)
isWinStandalone = osIsWindows and\
(sys.executable.endswith("awlsim-gui.exe") or\
sys.executable.endswith("awlsim-cli.exe") or\
sys.executable.endswith("awlsim-server.exe") or\
sys.executable.endswith("awlsim-server-module.exe") or\
sys.executable.endswith("awlsim-symtab.exe"))
# isPy3Compat is True, if the interpreter is Python 3 compatible.
isPy3Compat = sys.version_info[0] == 3
# isPy2Compat is True, if the interpreter is Python 2 compatible.
isPy2Compat = sys.version_info[0] == 2
# Python 2/3 helper selection
def py23(py2, py3):
if isPy3Compat:
return py3
if isPy2Compat:
return py2
raise Exception("Failed to detect Python version")
# Python interpreter name, as string.
if isCython:
pythonInterpreter = "Cython"
elif isPyPy:
pythonInterpreter = "PyPy"
elif isJython:
pythonInterpreter = "Jython"
elif isIronPython:
pythonInterpreter = "IronPython"
elif isWinStandalone:
pythonInterpreter = "Python (standalone)"
else:
pythonInterpreter = "Python"
# input() compatibility.
# Force Python3 behavior
if isPy2Compat:
input = raw_input
# range() compatibility.
# Force Python3 behavior
if isPy2Compat:
range = xrange
# reduce() compatibility.
# Force Python2 behavior
if isPy3Compat:
from functools import reduce
# Compat wrapper for monotonic time
import time
monotonic_time = getattr(time, "monotonic", time.clock)
# BlockingIOError dummy
try:
BlockingIOError
except NameError:
class BlockingIOError(BaseException): pass
# ConnectionError dummy
try:
ConnectionError
except NameError:
ConnectionError = OSError
# Import StringIO
if isIronPython and isPy2Compat:
# XXX: Workaround for IronPython's buggy io.StringIO
from StringIO import StringIO
else:
from io import StringIO
from io import BytesIO
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