X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/e36b8c71bb78f70735b8b4f239b0f574a6e0f277..2dfa69bb7fc1d310902ae565271d595d307f166b:/blib2to3/pgen2/tokenize.py?ds=inline diff --git a/blib2to3/pgen2/tokenize.py b/blib2to3/pgen2/tokenize.py index 6b8a5cb..9a7664b 100644 --- a/blib2to3/pgen2/tokenize.py +++ b/blib2to3/pgen2/tokenize.py @@ -29,7 +29,7 @@ __author__ = 'Ka-Ping Yee ' __credits__ = \ 'GvR, ESR, Tim Peters, Thomas Wouters, Fred Drake, Skip Montanaro' -import string, re, unicodedata +import re from codecs import BOM_UTF8, lookup from blib2to3.pgen2.token import * @@ -48,11 +48,15 @@ except NameError: def group(*choices): return '(' + '|'.join(choices) + ')' def any(*choices): return group(*choices) + '*' def maybe(*choices): return group(*choices) + '?' +def _combinations(*l): + return set( + x + y for x in l for y in l + ("",) if x.casefold() != y.casefold() + ) Whitespace = r'[ \f\t]*' Comment = r'#[^\r\n]*' Ignore = Whitespace + any(r'\\\r?\n' + Whitespace) + maybe(Comment) -Name = r'[^\d\W]\w*' +Name = r'\w+' # this is invalid but it's fine because Name comes after Number in all groups Binnumber = r'0[bB]_?[01]+(?:_[01]+)*' Hexnumber = r'0[xX]_?[\da-fA-F]+(?:_[\da-fA-F]+)*[lL]?' @@ -74,7 +78,7 @@ Double = r'[^"\\]*(?:\\.[^"\\]*)*"' Single3 = r"[^'\\]*(?:(?:\\.|'(?!''))[^'\\]*)*'''" # Tail end of """ string. Double3 = r'[^"\\]*(?:(?:\\.|"(?!""))[^"\\]*)*"""' -_litprefix = r"(?:[uUrRbBfF]|[rR][bB]|[bBuU][rR])?" +_litprefix = r"(?:[uUrRbBfF]|[rR][fFbB]|[fFbBuU][rR])?" Triple = group(_litprefix + "'''", _litprefix + '"""') # Single-line ' or " string. String = group(_litprefix + r"'[^\n'\\]*(?:\\.[^\n'\\]*)*'", @@ -107,59 +111,29 @@ tokenprog = re.compile(Token, re.UNICODE) pseudoprog = re.compile(PseudoToken, re.UNICODE) single3prog = re.compile(Single3) double3prog = re.compile(Double3) + +_strprefixes = ( + _combinations('r', 'R', 'f', 'F') | + _combinations('r', 'R', 'b', 'B') | + {'u', 'U', 'ur', 'uR', 'Ur', 'UR'} +) + 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 + **{f"{prefix}'''": single3prog for prefix in _strprefixes}, + **{f'{prefix}"""': double3prog for prefix in _strprefixes}, + **{prefix: None for prefix in _strprefixes}} + +triple_quoted = ( + {"'''", '"""'} | + {f"{prefix}'''" for prefix in _strprefixes} | + {f'{prefix}"""' for prefix in _strprefixes} +) +single_quoted = ( + {"'", '"'} | + {f"{prefix}'" for prefix in _strprefixes} | + {f'{prefix}"' for prefix in _strprefixes} +) tabsize = 8 @@ -360,8 +334,6 @@ def untokenize(iterable): ut = Untokenizer() return ut.untokenize(iterable) -InitialCategories = {'Lu', 'Ll', 'Lt', 'Lm', 'Lo', 'Nl', 'Mn', 'Mc', 'Nd', 'Pc'} - def generate_tokens(readline): """ The generate_tokens() generator requires one argument, readline, which @@ -379,7 +351,7 @@ def generate_tokens(readline): logical line; continuation lines are included. """ lnum = parenlev = continued = 0 - namechars, numchars = string.ascii_letters + '_', '0123456789' + numchars = '0123456789' contstr, needcont = '', 0 contline = None indents = [0] @@ -438,10 +410,6 @@ def generate_tokens(readline): yield (NL, line[pos:], (lnum, pos), (lnum, len(line)), line) continue - if column > indents[-1]: # count indents - indents.append(column) - yield (INDENT, line[:pos], (lnum, 0), (lnum, pos), line) - if line[pos] == '#': # skip comments comment_token = line[pos:].rstrip('\r\n') nl_pos = pos + len(comment_token) @@ -451,6 +419,10 @@ def generate_tokens(readline): (lnum, nl_pos), (lnum, len(line)), line) continue + if column > indents[-1]: # count indents + indents.append(column) + yield (INDENT, line[:pos], (lnum, 0), (lnum, pos), line) + while column < indents[-1]: # count dedents if column not in indents: raise IndentationError( @@ -477,8 +449,6 @@ def generate_tokens(readline): while pos < max: pseudomatch = pseudoprog.match(line, pos) - if not pseudomatch: - print('no pseudomatch') if pseudomatch: # scan for tokens start, end = pseudomatch.span(1) spos, epos, pos = (lnum, start), (lnum, end), end @@ -534,8 +504,7 @@ def generate_tokens(readline): yield stashed stashed = None yield (STRING, token, spos, epos, line) - elif (initial in namechars or # ordinary name - unicodedata.category(initial) in InitialCategories): + elif initial.isidentifier(): # ordinary name if token in ('async', 'await'): if async_def: yield (ASYNC if token == 'async' else AWAIT,