1 #! /usr/bin/env python

     2 

     3 """Keywords (from "graminit.c")

     4 

     5 This file is automatically generated; please don't muck it up!

     6 

     7 To update the symbols in this file, 'cd' to the top directory of

     8 the python source tree after building the interpreter and run:

     9 

    10     python Lib/keyword.py

    11 """

    12 

    13 __all__ = ["iskeyword", "kwlist"]

    14 

    15 kwlist = [

    16 #--start keywords--

    17         'and',

    18         'as',

    19         'assert',

    20         'break',

    21         'class',

    22         'continue',

    23         'def',

    24         'del',

    25         'elif',

    26         'else',

    27         'except',

    28         'exec',

    29         'finally',

    30         'for',

    31         'from',

    32         'global',

    33         'if',

    34         'import',

    35         'in',

    36         'is',

    37         'lambda',

    38         'not',

    39         'or',

    40         'pass',

    41         'print',

    42         'raise',

    43         'return',

    44         'try',

    45         'while',

    46         'with',

    47         'yield',

    48 #--end keywords--

    49         ]

    50 

    51 iskeyword = frozenset(kwlist).__contains__

    52 

    53 def main():

    54     import sys, re

    55 

    56     args = sys.argv[1:]

    57     iptfile = args and args[0] or "Python/graminit.c"

    58     if len(args) > 1: optfile = args[1]

    59     else: optfile = "Lib/keyword.py"

    60 

    61     # scan the source file for keywords

    62     fp = open(iptfile)

    63     strprog = re.compile('"([^"]+)"')

    64     lines = []

    65     for line in fp:

    66         if '{1, "' in line:

    67             match = strprog.search(line)

    68             if match:

    69                 lines.append("        '" + match.group(1) + "',\n")

    70     fp.close()

    71     lines.sort()

    72 

    73     # load the output skeleton from the target

    74     fp = open(optfile)

    75     format = fp.readlines()

    76     fp.close()

    77 

    78     # insert the lines of keywords

    79     try:

    80         start = format.index("#--start keywords--\n") + 1

    81         end = format.index("#--end keywords--\n")

    82         format[start:end] = lines

    83     except ValueError:

    84         sys.stderr.write("target does not contain format markers\n")

    85         sys.exit(1)

    86 

    87     # write the output file

    88     fp = open(optfile, 'w')

    89     fp.write(''.join(format))

    90     fp.close()

    91 

    92 if __name__ == "__main__":

    93     main()