91634c3c9b
flake8 was used to evaluate the file, with a couple of exeptions:
E501,E266,W503
black was used to reformat the code automatically
The changes were:
* Added a README that explains how to use pipenv and pip,
* Remove unnecessary return statements,
* Remove '\' from the end of the lines,
* Use f-strings (>= 3.6) since we are requiring Python 3.7,
* Commenting unused variables,
* Adding assert when Python >= 3.7 is not being used,
* Wrapping long lines to 100 (Qt Style),
* Re-factoring some lines,
* Re-ordering imports,
* Naming `except` for sympy (SympifyError, TypeError)
Change-Id: Ie05f754e7d8ee4bf427117c58e0eb1b903202933
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
102 lines
3.9 KiB
Python
102 lines
3.9 KiB
Python
#!/usr/bin/env python3
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#############################################################################
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##
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## Copyright (C) 2019 The Qt Company Ltd.
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## Contact: https://www.qt.io/licensing/
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##
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## This file is part of the plugins of the Qt Toolkit.
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##
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## $QT_BEGIN_LICENSE:GPL-EXCEPT$
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## Commercial License Usage
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## Licensees holding valid commercial Qt licenses may use this file in
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## accordance with the commercial license agreement provided with the
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## Software or, alternatively, in accordance with the terms contained in
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## a written agreement between you and The Qt Company. For licensing terms
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## and conditions see https://www.qt.io/terms-conditions. For further
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## information use the contact form at https://www.qt.io/contact-us.
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##
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## GNU General Public License Usage
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## Alternatively, this file may be used under the terms of the GNU
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## General Public License version 3 as published by the Free Software
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## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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## included in the packaging of this file. Please review the following
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## information to ensure the GNU General Public License requirements will
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## be met: https://www.gnu.org/licenses/gpl-3.0.html.
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##
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## $QT_END_LICENSE$
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##
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#############################################################################
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import pyparsing as pp
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import json
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import re
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from helper import _set_up_py_parsing_nicer_debug_output
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_set_up_py_parsing_nicer_debug_output(pp)
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class QMakeSpecificJSONParser:
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def __init__(self, *, debug: bool = False) -> None:
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self.debug = debug
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self.grammar = self.create_py_parsing_grammar()
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def create_py_parsing_grammar(self):
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# Keep around all whitespace.
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pp.ParserElement.setDefaultWhitespaceChars("")
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def add_element(name: str, value: pp.ParserElement):
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nonlocal self
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if self.debug:
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value.setName(name)
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value.setDebug()
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return value
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# Our grammar is pretty simple. We want to remove all newlines
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# inside quoted strings, to make the quoted strings JSON
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# compliant. So our grammar should skip to the first quote while
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# keeping everything before it as-is, process the quoted string
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# skip to the next quote, and repeat that until the end of the
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# file.
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EOF = add_element("EOF", pp.StringEnd())
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SkipToQuote = add_element("SkipToQuote", pp.SkipTo('"'))
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SkipToEOF = add_element("SkipToEOF", pp.SkipTo(EOF))
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def remove_newlines_and_whitespace_in_quoted_string(tokens):
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first_string = tokens[0]
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replaced_string = re.sub(r"\n[ ]*", " ", first_string)
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return replaced_string
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QuotedString = add_element(
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"QuotedString", pp.QuotedString(quoteChar='"', multiline=True, unquoteResults=False)
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)
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QuotedString.setParseAction(remove_newlines_and_whitespace_in_quoted_string)
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QuotedTerm = add_element("QuotedTerm", pp.Optional(SkipToQuote) + QuotedString)
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Grammar = add_element("Grammar", pp.OneOrMore(QuotedTerm) + SkipToEOF)
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return Grammar
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def parse_file_using_py_parsing(self, file: str):
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print(f'Pre processing "{file}" using py parsing to remove incorrect newlines.')
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try:
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with open(file, "r") as file_fd:
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contents = file_fd.read()
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parser_result = self.grammar.parseString(contents, parseAll=True)
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token_list = parser_result.asList()
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joined_string = "".join(token_list)
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return joined_string
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except pp.ParseException as pe:
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print(pe.line)
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print(" " * (pe.col - 1) + "^")
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print(pe)
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raise pe
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def parse(self, file: str):
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pre_processed_string = self.parse_file_using_py_parsing(file)
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print(f'Parsing "{file}" using json.loads().')
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json_parsed = json.loads(pre_processed_string)
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return json_parsed
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