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Kirill Smelkov
cpython
Commits
43e4ea1b
Commit
43e4ea1b
authored
14 years ago
by
Florent Xicluna
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Remove unused import, fix typo and rewrap docstrings.
parent
7dde792e
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Lib/tokenize.py
Lib/tokenize.py
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Lib/tokenize.py
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43e4ea1b
"""Tokenization help for Python programs.
tokenize(readline) is a generator that breaks a stream of
bytes into Python tokens. It decodes the bytes according to
PEP-0263 for
determining source file encoding.
tokenize(readline) is a generator that breaks a stream of
bytes into
Python tokens. It decodes the bytes according to PEP-0263 for
determining source file encoding.
It accepts a readline-like method which is called
repeatedly to get the next line of input (or b"" for EOF). It generates
5-tuples with these
members:
It accepts a readline-like method which is called
repeatedly to get the
next line of input (or b"" for EOF). It generates 5-tuples with these
members:
the token type (see token.py)
the token (a string)
...
...
@@ -16,14 +16,16 @@ repeatedly to get the next line of input (or b"" for EOF). It generates
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. Aditionally, all token lists start with an ENCODING token
which tells you which encoding was used to decode the bytes stream."""
operators. Additionally, all token lists start with an ENCODING token
which tells you which encoding was used to decode the bytes stream.
"""
__author__
=
'Ka-Ping Yee <ping@lfw.org>'
__credits__
=
(
'GvR, ESR, Tim Peters, Thomas Wouters, Fred Drake, '
'Skip Montanaro, Raymond Hettinger, Trent Nelson, '
'Michael Foord'
)
import
re
,
string
,
sys
import
re
import
sys
from
token
import
*
from
codecs
import
lookup
,
BOM_UTF8
cookie_re
=
re
.
compile
(
"coding[:=]
\
s*([-
\
w.]+)"
)
...
...
@@ -298,17 +300,16 @@ def _get_normal_name(orig_enc):
def
detect_encoding
(
readline
):
"""
The detect_encoding() function is used to detect the encoding that should
be used to decode a Python source file. It requires one argment, readline,
be used to decode a Python source file.
It requires one argment, readline,
in the same way as the tokenize() generator.
It will call readline a maximum of twice, and return the encoding used
(as a string) and a list of any lines (left as bytes) it has read
in.
(as a string) and a list of any lines (left as bytes) it has read in.
It detects the encoding from the presence of a utf-8 bom or an encoding
cookie as specified in pep-0263.
If both a bom and a cookie are present, but
disagree, a SyntaxError will be raised. If the encoding cookie is an invalid
charset, raise a SyntaxError. Note that if a utf-8 bom is found,
cookie as specified in pep-0263.
If both a bom and a cookie are present,
but disagree, a SyntaxError will be raised. If the encoding cookie is an
invalid
charset, raise a SyntaxError. Note that if a utf-8 bom is found,
'utf-8-sig' is returned.
If no encoding is specified, then the default of 'utf-8' will be returned.
...
...
@@ -372,7 +373,7 @@ 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
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
...
...
@@ -381,7 +382,7 @@ def tokenize(readline):
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
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
...
...
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