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# Copyright (C) 2010 Chris Jerdonek (cjerdonek@webkit.org)
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Supports checking WebKit style in Python files."""
from webkitpy.thirdparty.autoinstalled import pep8
class PythonChecker(object):
"""Processes text lines for checking style."""
def __init__(self, file_path, handle_style_error):
self._file_path = file_path
self._handle_style_error = handle_style_error
def check(self, lines):
# Initialize pep8.options, which is necessary for
# Checker.check_all() to execute.
pep8.process_options(arglist=[self._file_path])
checker = pep8.Checker(self._file_path)
def _pep8_handle_error(line_number, offset, text, check):
# FIXME: Incorporate the character offset into the error output.
# This will require updating the error handler __call__
# signature to include an optional "offset" parameter.
pep8_code = text[:4]
pep8_message = text[5:]
category = "pep8/" + pep8_code
self._handle_style_error(line_number, category, 5, pep8_message)
checker.report_error = _pep8_handle_error
errors = checker.check_all()
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