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Turns out Neil didn't intend for *all* of his gen-branch work to get

Browse source 
committed.

tokenize.py:  I like these changes, and have tested them extensively
without even realizing it, so I just updated the docstring and the docs.

tabnanny.py:  Also liked this, but did a little code fiddling.  I should
really rewrite this to *exploit* generators, but that's near the bottom
of my effort/benefit scale so doubt I'll get to it anytime soon (it
would be most useful as a non-trivial example of ideal use of generators;
but test_generators.py has already grown plenty of food-for-thought
examples).

inspect.py:  I'm sure Ping intended for this to continue running even
under 1.5.2, so I reverted this to the last pre-gen-branch version.  The
"bugfix" I checked in in-between was actually repairing a bug *introduced*
by the conversion to generators, so it's OK that the reverted version
doesn't reflect that checkin.
This commit is contained in:
Tim Peters 2001-06-29 23:51:08 +00:00
parent 88e66254f9
commit 4efb6e9643
4 changed files with 79 additions and 47 deletions
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29
Lib/tokenize.py
View file

@ -1,13 +1,26 @@
"""Tokenization help for Python programs.
This module exports a function called 'tokenize()' that breaks a stream of
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) and a "token-eater"
function which is called once for each token found. The latter function is
passed the token type, a string containing the token, the starting and
ending (row, column) coordinates of the token, and the original line. 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."""
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 <ping@lfw.org>'
__credits__ = \
@ -111,7 +124,7 @@ def tokenize(readline, tokeneater=printtoken):
except StopTokenizing:
pass
# backwards compatible interface, probably not used
# backwards compatible interface
def tokenize_loop(readline, tokeneater):
for token_info in generate_tokens(readline):
apply(tokeneater, token_info)