symbian-qemu-0.9.1-12/python-win32-2.6.1/lib/lib2to3/fixes/fix_paren.py
author johnathan.white@2718R8BGH51.accenture.com
Mon, 08 Mar 2010 18:45:03 +0000
changeset 46 b6935a90ca64
parent 1 2fb8b9db1c86
permissions -rw-r--r--
Modify framebuffer and NGA framebuffer to read screen size from board model dtb file. Optimise memory usuage of frame buffer Add example minigui application with hooks to profiler (which writes results to S:\). Modified NGA framebuffer to run its own dfc queue at high priority

"""Fixer that addes parentheses where they are required

This converts ``[x for x in 1, 2]`` to ``[x for x in (1, 2)]``."""

# By Taek Joo Kim and Benjamin Peterson

# Local imports
from .. import fixer_base
from ..fixer_util import LParen, RParen

# XXX This doesn't support nested for loops like [x for x in 1, 2 for x in 1, 2]
class FixParen(fixer_base.BaseFix):
    PATTERN = """
        atom< ('[' | '(')
            (listmaker< any
                comp_for<
                    'for' NAME 'in'
                    target=testlist_safe< any (',' any)+ [',']
                     >
                    [any]
                >
            >
            |
            testlist_gexp< any
                comp_for<
                    'for' NAME 'in'
                    target=testlist_safe< any (',' any)+ [',']
                     >
                    [any]
                >
            >)
        (']' | ')') >
    """

    def transform(self, node, results):
        target = results["target"]

        lparen = LParen()
        lparen.set_prefix(target.get_prefix())
        target.set_prefix("") # Make it hug the parentheses
        target.insert_child(0, lparen)
        target.append_child(RParen())