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__pycache__ dir drwxr-xr-x 2024-10-07 16:37 R D
  __init__.py 0.14 KB -rw-r--r-- 2018-12-23 21:37 R E G D
  conv.py 9.416 KB -rw-r--r-- 2018-12-23 21:37 R E G D
  driver.py 5.887 KB -rw-r--r-- 2018-12-23 21:37 R E G D
  grammar.py 6.435 KB -rw-r--r-- 2018-12-23 21:37 R E G D
  literals.py 1.577 KB -rw-r--r-- 2018-12-23 21:37 R E G D
  parse.py 7.864 KB -rw-r--r-- 2018-12-23 21:37 R E G D
  pgen.py 13.488 KB -rw-r--r-- 2018-12-23 21:37 R E G D
  token.py 1.254 KB -rwxr-xr-x 2018-12-23 21:37 R E G D
  tokenize.py 22.076 KB -rw-r--r-- 2018-12-23 21:37 R E G D
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# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006 Python Software Foundation. # All rights reserved. """Tokenization help for Python programs. generate_tokens(readline) is a generator that breaks a stream of text into Python tokens. It accepts a readline-like method which is called repeatedly to get the next line of input (or "" for EOF). It generates 5-tuples with these members: the token type (see token.py) the token (a string) the starting (row, column) indices of the token (a 2-tuple of ints) the ending (row, column) indices of the token (a 2-tuple of ints) the original line (string) It is designed to match the working of the Python tokenizer exactly, except that it produces COMMENT tokens for comments and gives type OP for all operators Older entry points tokenize_loop(readline, tokeneater) tokenize(readline, tokeneater=printtoken) are the same, except instead of generating tokens, tokeneater is a callback function to which the 5 fields described above are passed as 5 arguments, each time a new token is found.""" __author__ = 'Ka-Ping Yee ' __credits__ = \ 'GvR, ESR, Tim Peters, Thomas Wouters, Fred Drake, Skip Montanaro' import string, re from codecs import BOM_UTF8, lookup from lib2to3.pgen2.token import * from . import token __all__ = [x for x in dir(token) if x[0] != '_'] + ["tokenize", "generate_tokens", "untokenize"] del token try: bytes except NameError: # Support bytes type in Python <= 2.5, so 2to3 turns itself into # valid Python 3 code. bytes = str def group(*choices): return '(' + '|'.join(choices) + ')' def any(*choices): return group(*choices) + '*' def maybe(*choices): return group(*choices) + '?' Whitespace = r'[ \f\t]*' Comment = r'#[^\r\n]*' Ignore = Whitespace + any(r'\\\r?\n' + Whitespace) + maybe(Comment) Name = r'[a-zA-Z_]\w*' Binnumber = r'0[bB]_?[01]+(?:_[01]+)*' Hexnumber = r'0[xX]_?[\da-fA-F]+(?:_[\da-fA-F]+)*[lL]?' Octnumber = r'0[oO]?_?[0-7]+(?:_[0-7]+)*[lL]?' Decnumber = group(r'[1-9]\d*(?:_\d+)*[lL]?', '0[lL]?') Intnumber = group(Binnumber, Hexnumber, Octnumber, Decnumber) Exponent = r'[eE][-+]?\d+(?:_\d+)*' Pointfloat = group(r'\d+(?:_\d+)*\.(?:\d+(?:_\d+)*)?', r'\.\d+(?:_\d+)*') + maybe(Exponent) Expfloat = r'\d+(?:_\d+)*' + Exponent Floatnumber = group(Pointfloat, Expfloat) Imagnumber = group(r'\d+(?:_\d+)*[jJ]', Floatnumber + r'[jJ]') Number = group(Imagnumber, Floatnumber, Intnumber) # Tail end of ' string. Single = r"[^'\\]*(?:\\.[^'\\]*)*'" # Tail end of " string. Double = r'[^"\\]*(?:\\.[^"\\]*)*"' # Tail end of ''' string. Single3 = r"[^'\\]*(?:(?:\\.|'(?!''))[^'\\]*)*'''" # Tail end of """ string. Double3 = r'[^"\\]*(?:(?:\\.|"(?!""))[^"\\]*)*"""' _litprefix = r"(?:[uUrRbBfF]|[rR][bB]|[bBuU][rR])?" Triple = group(_litprefix + "'''", _litprefix + '"""') # Single-line ' or " string. String = group(_litprefix + r"'[^\n'\\]*(?:\\.[^\n'\\]*)*'", _litprefix + r'"[^\n"\\]*(?:\\.[^\n"\\]*)*"') # Because of leftmost-then-longest match semantics, be sure to put the # longest operators first (e.g., if = came before ==, == would get # recognized as two instances of =). Operator = group(r"\*\*=?", r">>=?", r"<<=?", r"<>", r"!=", r"//=?", r"->", r"[+\-*/%&@|^=<>]=?", r"~") Bracket = '[][(){}]' Special = group(r'\r?\n', r'[:;.,`@]') Funny = group(Operator, Bracket, Special) PlainToken = group(Number, Funny, String, Name) Token = Ignore + PlainToken # First (or only) line of ' or " string. ContStr = group(_litprefix + r"'[^\n'\\]*(?:\\.[^\n'\\]*)*" + group("'", r'\\\r?\n'), _litprefix + r'"[^\n"\\]*(?:\\.[^\n"\\]*)*' + group('"', r'\\\r?\n')) PseudoExtras = group(r'\\\r?\n', Comment, Triple) PseudoToken = Whitespace + group(PseudoExtras, Number, Funny, ContStr, Name) tokenprog, pseudoprog, single3prog, double3prog = list(map( re.compile, (Token, PseudoToken, Single3, Double3))) endprogs = {"'": re.compile(Single), '"': re.compile(Double), "'''": single3prog, '"""': double3prog, "r'''": single3prog, 'r"""': double3prog, "u'''": single3prog, 'u"""': double3prog, "b'''": single3prog, 'b"""': double3prog, "f'''": single3prog, 'f"""': double3prog, "ur'''": single3prog, 'ur"""': double3prog, "br'''": single3prog, 'br"""': double3prog, "rb'''": single3prog, 'rb"""': double3prog, "R'''": single3prog, 'R"""': double3prog, "U'''": single3prog, 'U"""': double3prog, "B'''": single3prog, 'B"""': double3prog, "F'''": single3prog, 'F"""': double3prog, "uR'''": single3prog, 'uR"""': double3prog, "Ur'''": single3prog, 'Ur"""': double3prog, "UR'''": single3prog, 'UR"""': double3prog, "bR'''": single3prog, 'bR"""': double3prog, "Br'''": single3prog, 'Br"""': double3prog, "BR'''": single3prog, 'BR"""': double3prog, "rB'''": single3prog, 'rB"""': double3prog, "Rb'''": single3prog, 'Rb"""': double3prog, "RB'''": single3prog, 'RB"""': double3prog, 'r': None, 'R': None, 'u': None, 'U': None, 'f': None, 'F': None, 'b': None, 'B': None} triple_quoted = {} for t in ("'''", '"""', "r'''", 'r"""', "R'''", 'R"""', "u'''", 'u"""', "U'''", 'U"""', "b'''", 'b"""', "B'''", 'B"""', "f'''", 'f"""', "F'''", 'F"""', "ur'''", 'ur"""', "Ur'''", 'Ur"""', "uR'''", 'uR"""', "UR'''", 'UR"""', "br'''", 'br"""', "Br'''", 'Br"""', "bR'''", 'bR"""', "BR'''", 'BR"""', "rb'''", 'rb"""', "Rb'''", 'Rb"""', "rB'''", 'rB"""', "RB'''", 'RB"""',): triple_quoted[t] = t single_quoted = {} for t in ("'", '"', "r'", 'r"', "R'", 'R"', "u'", 'u"', "U'", 'U"', "b'", 'b"', "B'", 'B"', "f'", 'f"', "F'", 'F"', "ur'", 'ur"', "Ur'", 'Ur"', "uR'", 'uR"', "UR'", 'UR"', "br'", 'br"', "Br'", 'Br"', "bR'", 'bR"', "BR'", 'BR"', "rb'", 'rb"', "Rb'", 'Rb"', "rB'", 'rB"', "RB'", 'RB"',): single_quoted[t] = t tabsize = 8 class TokenError(Exception): pass class StopTokenizing(Exception): pass def printtoken(type, token, xxx_todo_changeme, xxx_todo_changeme1, line): # for testing (srow, scol) = xxx_todo_changeme (erow, ecol) = xxx_todo_changeme1 print("%d,%d-%d,%d:\t%s\t%s" % \ (srow, scol, erow, ecol, tok_name[type], repr(token))) def tokenize(readline, tokeneater=printtoken): """ The tokenize() function accepts two parameters: one representing the input stream, and one providing an output mechanism for tokenize(). The first parameter, readline, must be a callable object which provides the same interface as the readline() method of built-in file objects. Each call to the function should return one line of input as a string. The second parameter, tokeneater, must also be a callable object. It is called once for each token, with five arguments, corresponding to the tuples generated by generate_tokens(). """ try: tokenize_loop(readline, tokeneater) except StopTokenizing: pass # backwards compatible interface def tokenize_loop(readline, tokeneater): for token_info in generate_tokens(readline): tokeneater(*token_info) class Untokenizer: def __init__(self): self.tokens = [] self.prev_row = 1 self.prev_col = 0 def add_whitespace(self, start): row, col = start assert row <= self.prev_row col_offset = col - self.prev_col if col_offset: self.tokens.append(" " * col_offset) def untokenize(self, iterable): for t in iterable: if len(t) == 2: self.compat(t, iterable) break tok_type, token, start, end, line = t self.add_whitespace(start) self.tokens.append(token) self.prev_row, self.prev_col = end if tok_type in (NEWL