我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用token.type()。
def exact_type(self): if self.type == OP and self.string in EXACT_TOKEN_TYPES: return EXACT_TOKEN_TYPES[self.string] else: return self.type
def tokenize(readline): """ The tokenize() generator requires one argument, readline, which 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 bytes. Alternatively, readline can be a callable function terminating with StopIteration: readline = open(myfile, 'rb').__next__ # Example of alternate readline The generator produces 5-tuples with these members: the token type; the token string; a 2-tuple (srow, scol) of ints specifying the row and column where the token begins in the source; a 2-tuple (erow, ecol) of ints specifying the row and column where the token ends in the source; and the line on which the token was found. The line passed is the logical line; continuation lines are included. The first token sequence will always be an ENCODING token which tells you which encoding was used to decode the bytes stream. """ # This import is here to avoid problems when the itertools module is not # built yet and tokenize is imported. from itertools import chain, repeat encoding, consumed = detect_encoding(readline) rl_gen = iter(readline, b"") empty = repeat(b"") return _tokenize(chain(consumed, rl_gen, empty).__next__, encoding)
def token_repr(tok_type, string): """Returns a human-friendly representation of a token with the given type and string.""" # repr() prefixes unicode with 'u' on Python2 but not Python3; strip it out for consistency. return '%s:%s' % (token.tok_name[tok_type], repr(string).lstrip('u'))
def __str__(self): return token_repr(self.type, self.string)
def match_token(token, tok_type, tok_str=None): """Returns true if token is of the given type and, if a string is given, has that string.""" return token.type == tok_type and (tok_str is None or token.string == tok_str)
def expect_token(token, tok_type, tok_str=None): """ Verifies that the given token is of the expected type. If tok_str is given, the token string is verified too. If the token doesn't match, raises an informative ValueError. """ if not match_token(token, tok_type, tok_str): raise ValueError("Expected token %s, got %s on line %s col %s" % ( token_repr(tok_type, tok_str), str(token), token.start[0], token.start[1] + 1))
def get(self, obj, cls): """ Using the lowercase name of the class as node_type, returns `obj.visit_{node_type}`, or `obj.visit_default` if the type-specific method is not found. """ method = self._cache.get(cls) if not method: name = "visit_" + cls.__name__.lower() method = getattr(obj, name, obj.visit_default) self._cache[cls] = method return method
def __repr__(self): annotated_type = '%d (%s)' % (self.type, tok_name[self.type]) return ('TokenInfo(type=%s, string=%r, start=%r, end=%r, line=%r)' % self._replace(type=annotated_type))
def tokenize(readline): """ The tokenize() generator requires one argment, readline, which 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 bytes. Alternately, readline can be a callable function terminating with StopIteration: readline = open(myfile, 'rb').__next__ # Example of alternate readline The generator produces 5-tuples with these members: the token type; the token string; a 2-tuple (srow, scol) of ints specifying the row and column where the token begins in the source; a 2-tuple (erow, ecol) of ints specifying the row and column where the token ends in the source; and the line on which the token was found. The line passed is the logical line; continuation lines are included. The first token sequence will always be an ENCODING token which tells you which encoding was used to decode the bytes stream. """ # This import is here to avoid problems when the itertools module is not # built yet and tokenize is imported. from itertools import chain, repeat encoding, consumed = detect_encoding(readline) rl_gen = iter(readline, b"") empty = repeat(b"") return _tokenize(chain(consumed, rl_gen, empty).__next__, encoding)
def main(): import argparse # Helper error handling routines def perror(message): print(message, file=sys.stderr) def error(message, filename=None, location=None): if location: args = (filename,) + location + (message,) perror("%s:%d:%d: error: %s" % args) elif filename: perror("%s: error: %s" % (filename, message)) else: perror("error: %s" % message) sys.exit(1) # Parse the arguments and options parser = argparse.ArgumentParser(prog='python -m tokenize') parser.add_argument(dest='filename', nargs='?', metavar='filename.py', help='the file to tokenize; defaults to stdin') parser.add_argument('-e', '--exact', dest='exact', action='store_true', help='display token names using the exact type') args = parser.parse_args() try: # Tokenize the input if args.filename: filename = args.filename with _builtin_open(filename, 'rb') as f: tokens = list(tokenize(f.readline)) else: filename = "<stdin>" tokens = _tokenize(sys.stdin.readline, None) # Output the tokenization for token in tokens: token_type = token.type if args.exact: token_type = token.exact_type token_range = "%d,%d-%d,%d:" % (token.start + token.end) print("%-20s%-15s%-15r" % (token_range, tok_name[token_type], token.string)) except IndentationError as err: line, column = err.args[1][1:3] error(err.args[0], filename, (line, column)) except TokenError as err: line, column = err.args[1] error(err.args[0], filename, (line, column)) except SyntaxError as err: error(err, filename) except OSError as err: error(err) except KeyboardInterrupt: print("interrupted\n") except Exception as err: perror("unexpected error: %s" % err) raise
