mirror of
https://github.com/morpheus65535/bazarr.git
synced 2024-11-10 17:13:35 +08:00
328 lines
8.9 KiB
Python
328 lines
8.9 KiB
Python
# module pyparsing.py
|
|
#
|
|
# Copyright (c) 2003-2021 Paul T. McGuire
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be
|
|
# included in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
#
|
|
|
|
__doc__ = """
|
|
pyparsing module - Classes and methods to define and execute parsing grammars
|
|
=============================================================================
|
|
|
|
The pyparsing module is an alternative approach to creating and
|
|
executing simple grammars, vs. the traditional lex/yacc approach, or the
|
|
use of regular expressions. With pyparsing, you don't need to learn
|
|
a new syntax for defining grammars or matching expressions - the parsing
|
|
module provides a library of classes that you use to construct the
|
|
grammar directly in Python.
|
|
|
|
Here is a program to parse "Hello, World!" (or any greeting of the form
|
|
``"<salutation>, <addressee>!"``), built up using :class:`Word`,
|
|
:class:`Literal`, and :class:`And` elements
|
|
(the :meth:`'+'<ParserElement.__add__>` operators create :class:`And` expressions,
|
|
and the strings are auto-converted to :class:`Literal` expressions)::
|
|
|
|
from pyparsing import Word, alphas
|
|
|
|
# define grammar of a greeting
|
|
greet = Word(alphas) + "," + Word(alphas) + "!"
|
|
|
|
hello = "Hello, World!"
|
|
print(hello, "->", greet.parse_string(hello))
|
|
|
|
The program outputs the following::
|
|
|
|
Hello, World! -> ['Hello', ',', 'World', '!']
|
|
|
|
The Python representation of the grammar is quite readable, owing to the
|
|
self-explanatory class names, and the use of :class:`'+'<And>`,
|
|
:class:`'|'<MatchFirst>`, :class:`'^'<Or>` and :class:`'&'<Each>` operators.
|
|
|
|
The :class:`ParseResults` object returned from
|
|
:class:`ParserElement.parseString` can be
|
|
accessed as a nested list, a dictionary, or an object with named
|
|
attributes.
|
|
|
|
The pyparsing module handles some of the problems that are typically
|
|
vexing when writing text parsers:
|
|
|
|
- extra or missing whitespace (the above program will also handle
|
|
"Hello,World!", "Hello , World !", etc.)
|
|
- quoted strings
|
|
- embedded comments
|
|
|
|
|
|
Getting Started -
|
|
-----------------
|
|
Visit the classes :class:`ParserElement` and :class:`ParseResults` to
|
|
see the base classes that most other pyparsing
|
|
classes inherit from. Use the docstrings for examples of how to:
|
|
|
|
- construct literal match expressions from :class:`Literal` and
|
|
:class:`CaselessLiteral` classes
|
|
- construct character word-group expressions using the :class:`Word`
|
|
class
|
|
- see how to create repetitive expressions using :class:`ZeroOrMore`
|
|
and :class:`OneOrMore` classes
|
|
- use :class:`'+'<And>`, :class:`'|'<MatchFirst>`, :class:`'^'<Or>`,
|
|
and :class:`'&'<Each>` operators to combine simple expressions into
|
|
more complex ones
|
|
- associate names with your parsed results using
|
|
:class:`ParserElement.setResultsName`
|
|
- access the parsed data, which is returned as a :class:`ParseResults`
|
|
object
|
|
- find some helpful expression short-cuts like :class:`delimitedList`
|
|
and :class:`oneOf`
|
|
- find more useful common expressions in the :class:`pyparsing_common`
|
|
namespace class
|
|
"""
|
|
from typing import NamedTuple
|
|
|
|
|
|
class version_info(NamedTuple):
|
|
major: int
|
|
minor: int
|
|
micro: int
|
|
releaselevel: str
|
|
serial: int
|
|
|
|
@property
|
|
def __version__(self):
|
|
return "{}.{}.{}".format(self.major, self.minor, self.micro) + (
|
|
"{}{}{}".format(
|
|
"r" if self.releaselevel[0] == "c" else "",
|
|
self.releaselevel[0],
|
|
self.serial,
|
|
),
|
|
"",
|
|
)[self.releaselevel == "final"]
|
|
|
|
def __str__(self):
|
|
return "{} {} / {}".format(__name__, self.__version__, __version_time__)
|
|
|
|
def __repr__(self):
|
|
return "{}.{}({})".format(
|
|
__name__,
|
|
type(self).__name__,
|
|
", ".join("{}={!r}".format(*nv) for nv in zip(self._fields, self)),
|
|
)
|
|
|
|
|
|
__version_info__ = version_info(3, 0, 7, "final", 0)
|
|
__version_time__ = "15 Jan 2022 04:10 UTC"
|
|
__version__ = __version_info__.__version__
|
|
__versionTime__ = __version_time__
|
|
__author__ = "Paul McGuire <ptmcg.gm+pyparsing@gmail.com>"
|
|
|
|
from .util import *
|
|
from .exceptions import *
|
|
from .actions import *
|
|
from .core import __diag__, __compat__
|
|
from .results import *
|
|
from .core import *
|
|
from .core import _builtin_exprs as core_builtin_exprs
|
|
from .helpers import *
|
|
from .helpers import _builtin_exprs as helper_builtin_exprs
|
|
|
|
from .unicode import unicode_set, UnicodeRangeList, pyparsing_unicode as unicode
|
|
from .testing import pyparsing_test as testing
|
|
from .common import (
|
|
pyparsing_common as common,
|
|
_builtin_exprs as common_builtin_exprs,
|
|
)
|
|
|
|
# define backward compat synonyms
|
|
if "pyparsing_unicode" not in globals():
|
|
pyparsing_unicode = unicode
|
|
if "pyparsing_common" not in globals():
|
|
pyparsing_common = common
|
|
if "pyparsing_test" not in globals():
|
|
pyparsing_test = testing
|
|
|
|
core_builtin_exprs += common_builtin_exprs + helper_builtin_exprs
|
|
|
|
|
|
__all__ = [
|
|
"__version__",
|
|
"__version_time__",
|
|
"__author__",
|
|
"__compat__",
|
|
"__diag__",
|
|
"And",
|
|
"AtLineStart",
|
|
"AtStringStart",
|
|
"CaselessKeyword",
|
|
"CaselessLiteral",
|
|
"CharsNotIn",
|
|
"Combine",
|
|
"Dict",
|
|
"Each",
|
|
"Empty",
|
|
"FollowedBy",
|
|
"Forward",
|
|
"GoToColumn",
|
|
"Group",
|
|
"IndentedBlock",
|
|
"Keyword",
|
|
"LineEnd",
|
|
"LineStart",
|
|
"Literal",
|
|
"Located",
|
|
"PrecededBy",
|
|
"MatchFirst",
|
|
"NoMatch",
|
|
"NotAny",
|
|
"OneOrMore",
|
|
"OnlyOnce",
|
|
"OpAssoc",
|
|
"Opt",
|
|
"Optional",
|
|
"Or",
|
|
"ParseBaseException",
|
|
"ParseElementEnhance",
|
|
"ParseException",
|
|
"ParseExpression",
|
|
"ParseFatalException",
|
|
"ParseResults",
|
|
"ParseSyntaxException",
|
|
"ParserElement",
|
|
"PositionToken",
|
|
"QuotedString",
|
|
"RecursiveGrammarException",
|
|
"Regex",
|
|
"SkipTo",
|
|
"StringEnd",
|
|
"StringStart",
|
|
"Suppress",
|
|
"Token",
|
|
"TokenConverter",
|
|
"White",
|
|
"Word",
|
|
"WordEnd",
|
|
"WordStart",
|
|
"ZeroOrMore",
|
|
"Char",
|
|
"alphanums",
|
|
"alphas",
|
|
"alphas8bit",
|
|
"any_close_tag",
|
|
"any_open_tag",
|
|
"c_style_comment",
|
|
"col",
|
|
"common_html_entity",
|
|
"counted_array",
|
|
"cpp_style_comment",
|
|
"dbl_quoted_string",
|
|
"dbl_slash_comment",
|
|
"delimited_list",
|
|
"dict_of",
|
|
"empty",
|
|
"hexnums",
|
|
"html_comment",
|
|
"identchars",
|
|
"identbodychars",
|
|
"java_style_comment",
|
|
"line",
|
|
"line_end",
|
|
"line_start",
|
|
"lineno",
|
|
"make_html_tags",
|
|
"make_xml_tags",
|
|
"match_only_at_col",
|
|
"match_previous_expr",
|
|
"match_previous_literal",
|
|
"nested_expr",
|
|
"null_debug_action",
|
|
"nums",
|
|
"one_of",
|
|
"printables",
|
|
"punc8bit",
|
|
"python_style_comment",
|
|
"quoted_string",
|
|
"remove_quotes",
|
|
"replace_with",
|
|
"replace_html_entity",
|
|
"rest_of_line",
|
|
"sgl_quoted_string",
|
|
"srange",
|
|
"string_end",
|
|
"string_start",
|
|
"trace_parse_action",
|
|
"unicode_string",
|
|
"with_attribute",
|
|
"indentedBlock",
|
|
"original_text_for",
|
|
"ungroup",
|
|
"infix_notation",
|
|
"locatedExpr",
|
|
"with_class",
|
|
"CloseMatch",
|
|
"token_map",
|
|
"pyparsing_common",
|
|
"pyparsing_unicode",
|
|
"unicode_set",
|
|
"condition_as_parse_action",
|
|
"pyparsing_test",
|
|
# pre-PEP8 compatibility names
|
|
"__versionTime__",
|
|
"anyCloseTag",
|
|
"anyOpenTag",
|
|
"cStyleComment",
|
|
"commonHTMLEntity",
|
|
"countedArray",
|
|
"cppStyleComment",
|
|
"dblQuotedString",
|
|
"dblSlashComment",
|
|
"delimitedList",
|
|
"dictOf",
|
|
"htmlComment",
|
|
"javaStyleComment",
|
|
"lineEnd",
|
|
"lineStart",
|
|
"makeHTMLTags",
|
|
"makeXMLTags",
|
|
"matchOnlyAtCol",
|
|
"matchPreviousExpr",
|
|
"matchPreviousLiteral",
|
|
"nestedExpr",
|
|
"nullDebugAction",
|
|
"oneOf",
|
|
"opAssoc",
|
|
"pythonStyleComment",
|
|
"quotedString",
|
|
"removeQuotes",
|
|
"replaceHTMLEntity",
|
|
"replaceWith",
|
|
"restOfLine",
|
|
"sglQuotedString",
|
|
"stringEnd",
|
|
"stringStart",
|
|
"traceParseAction",
|
|
"unicodeString",
|
|
"withAttribute",
|
|
"indentedBlock",
|
|
"originalTextFor",
|
|
"infixNotation",
|
|
"locatedExpr",
|
|
"withClass",
|
|
"tokenMap",
|
|
"conditionAsParseAction",
|
|
"autoname_elements",
|
|
]
|