def _compile_pattern(pat):
if isinstance(pat, bytes):
pat_str = str(pat, 'ISO-8859-1')
res_str = translate(pat_str)
res = bytes(res_str, 'ISO-8859-1')
else:
res = translate(pat)
return re.compile(res).match
def expandvars(path):
"""Expand shell variables of form $var and ${var}. Unknown variables
are left unchanged."""
path = os.fspath(path)
global _varprog, _varprogb
if isinstance(path, bytes):
if b'$' not in path:
return path
if not _varprogb:
_varprogb = re.compile(br'\$(\w+|\{[^}]*\})', re.ASCII)
search = _varprogb.search
start = b'{'
end = b'}'
environ = getattr(os, 'environb', None)
else:
if '$' not in path:
return path
if not _varprog:
_varprog = re.compile(r'\$(\w+|\{[^}]*\})', re.ASCII)
search = _varprog.search
start = '{'
end = '}'
environ = os.environ
i = 0
while True:
m = search(path, i)
if not m:
break
i, j = m.span(0)
name = m.group(1)
if name.startswith(start) and name.endswith(end):
name = name[1:-1]
try:
if environ is None:
value = os.fsencode(os.environ[os.fsdecode(name)])
else:
value = environ[name]
except KeyError:
i = j
else:
tail = path[j:]
path = path[:i] + value
i = len(path)
path += tail
return path
def filterwarnings(action,
message="",
category=Warning,
module="",
lineno=0,
append=False):
"""Insert an entry into the list of warnings filters (at the front).
'action' -- one of "error", "ignore", "always", "default", "module",
or "once"
'message' -- a regex that the warning message must match
'category' -- a class that the warning must be a subclass of
'module' -- a regex that the module name must match
'lineno' -- an integer line number, 0 matches all warnings
'append' -- if true, append to the list of filters
"""
assert action in ("error", "ignore", "always", "default", "module",
"once"), "invalid action: %r" % (action, )
assert isinstance(message, str), "message must be a string"
assert isinstance(category, type), "category must be a class"
assert issubclass(category, Warning), "category must be a Warning subclass"
assert isinstance(module, str), "module must be a string"
assert isinstance(lineno, int) and lineno >= 0, \
"lineno must be an int >= 0"
if message or module:
from code.图片资料.env.Lib import re
if message:
message = re.compile(message, re.I)
else:
message = None
if module:
module = re.compile(module)
else:
module = None
_add_filter(action, message, category, module, lineno, append=append)
def main():
import sys
from code.图片资料.env.Lib import re
args = sys.argv[1:]
iptfile = args and args[0] or "Python/graminit.c"
if len(args) > 1: optfile = args[1]
else: optfile = "Lib/keyword.py"
# load the output skeleton from the target, taking care to preserve its
# newline convention.
with open(optfile, newline='') as fp:
format = fp.readlines()
nl = format[0][len(format[0].strip()):] if format else '\n'
# scan the source file for keywords
with open(iptfile) as fp:
strprog = re.compile('"([^"]+)"')
lines = []
for line in fp:
if '{1, "' in line:
match = strprog.search(line)
if match:
lines.append(" '" + match.group(1) + "'," + nl)
lines.sort()
# insert the lines of keywords into the skeleton
try:
start = format.index("#--start keywords--" + nl) + 1
end = format.index("#--end keywords--" + nl)
format[start:end] = lines
except ValueError:
sys.stderr.write("target does not contain format markers\n")
sys.exit(1)
# write the output file
with open(optfile, 'w', newline='') as fp:
fp.writelines(format)
def _compile(expr):
return re.compile(expr, re.UNICODE)
"""
__author__ = 'Ka-Ping Yee <*****@*****.**>'
__credits__ = ('GvR, ESR, Tim Peters, Thomas Wouters, Fred Drake, '
'Skip Montanaro, Raymond Hettinger, Trent Nelson, '
'Michael Foord')
from builtins import open as _builtin_open
from code.图片资料.env.Lib.codecs import lookup, BOM_UTF8
from code.图片资料.env.Lib import collections, token, re
from code.图片资料.env.Lib.io import TextIOWrapper
from itertools import chain
import itertools as _itertools
import sys
from code.图片资料.env.Lib.token import *
cookie_re = re.compile(r'^[ \t\f]*#.*?coding[:=][ \t]*([-\w.]+)', re.ASCII)
blank_re = re.compile(br'^[ \t\f]*(?:[#\r\n]|$)', re.ASCII)
__all__ = token.__all__ + [
"tokenize", "detect_encoding", "untokenize", "TokenInfo"
]
del token
EXACT_TOKEN_TYPES = {
'(': LPAR,
')': RPAR,
'[': LSQB,
']': RSQB,
':': COLON,
',': COMMA,
';': SEMI,
def _main():
from code.图片资料.env.Lib import re
import sys
args = sys.argv[1:]
inFileName = args and args[0] or "Include/token.h"
outFileName = "Lib/token.py"
if len(args) > 1:
outFileName = args[1]
try:
fp = open(inFileName)
except OSError as err:
sys.stdout.write("I/O error: %s\n" % str(err))
sys.exit(1)
with fp:
lines = fp.read().split("\n")
prog = re.compile(
r"#define[ \t][ \t]*([A-Z0-9][A-Z0-9_]*)[ \t][ \t]*([0-9][0-9]*)",
re.IGNORECASE)
comment_regex = re.compile(r"^\s*/\*\s*(.+?)\s*\*/\s*$", re.IGNORECASE)
tokens = {}
prev_val = None
for line in lines:
match = prog.match(line)
if match:
name, val = match.group(1, 2)
val = int(val)
tokens[val] = {'token': name} # reverse so we can sort them...
prev_val = val
else:
comment_match = comment_regex.match(line)
if comment_match and prev_val is not None:
comment = comment_match.group(1)
tokens[prev_val]['comment'] = comment
keys = sorted(tokens.keys())
# load the output skeleton from the target:
try:
fp = open(outFileName)
except OSError as err:
sys.stderr.write("I/O error: %s\n" % str(err))
sys.exit(2)
with fp:
format = fp.read().split("\n")
try:
start = format.index("#--start constants--") + 1
end = format.index("#--end constants--")
except ValueError:
sys.stderr.write("target does not contain format markers")
sys.exit(3)
lines = []
for key in keys:
lines.append("%s = %d" % (tokens[key]["token"], key))
if "comment" in tokens[key]:
lines.append("# %s" % tokens[key]["comment"])
format[start:end] = lines
try:
fp = open(outFileName, 'w')
except OSError as err:
sys.stderr.write("I/O error: %s\n" % str(err))
sys.exit(4)
with fp:
fp.write("\n".join(format))