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cpython/Lib/keyword.py
R David Murray f0f7ceae3c 17830: preserve line endings of original file when updating keywords.
This fixes the test failures on Windows from the new tests, and
includes test fixes as well as the module fix.
2013-04-25 12:01:36 -04:00

95 lines
2.2 KiB
Python
Executable File

#! /usr/bin/env python3
"""Keywords (from "graminit.c")
This file is automatically generated; please don't muck it up!
To update the symbols in this file, 'cd' to the top directory of
the python source tree after building the interpreter and run:
./python Lib/keyword.py
"""
__all__ = ["iskeyword", "kwlist"]
kwlist = [
#--start keywords--
'False',
'None',
'True',
'and',
'as',
'assert',
'break',
'class',
'continue',
'def',
'del',
'elif',
'else',
'except',
'finally',
'for',
'from',
'global',
'if',
'import',
'in',
'is',
'lambda',
'nonlocal',
'not',
'or',
'pass',
'raise',
'return',
'try',
'while',
'with',
'yield',
#--end keywords--
]
iskeyword = frozenset(kwlist).__contains__
def main():
import sys, 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)
if __name__ == "__main__":
main()