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/Lib/keyword.py

http://unladen-swallow.googlecode.com/
Python | 93 lines | 89 code | 2 blank | 2 comment | 0 complexity | f989bf735a1e817073584270bc527afc MD5 | raw file
 1#! /usr/bin/env python
 2
 3"""Keywords (from "graminit.c")
 4
 5This file is automatically generated; please don't muck it up!
 6
 7To update the symbols in this file, 'cd' to the top directory of
 8the python source tree after building the interpreter and run:
 9
10    python Lib/keyword.py
11"""
12
13__all__ = ["iskeyword", "kwlist"]
14
15kwlist = [
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
51iskeyword = frozenset(kwlist).__contains__
52
53def 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
92if __name__ == "__main__":
93    main()