Lib/keyword.py

   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 kwlist = [
  14 #--start keywords--
  15         'and',
  16         'assert',
  17         'break',
  18         'class',
  19         'continue',
  20         'def',
  21         'del',
  22         'elif',
  23         'else',
  24         'except',
  25         'exec',
  26         'finally',
  27         'for',
  28         'from',
  29         'global',
  30         'if',
  31         'import',
  32         'in',
  33         'is',
  34         'lambda',
  35         'not',
  36         'or',
  37         'pass',
  38         'print',
  39         'raise',
  40         'return',
  41         'try',
  42         'while',
  43 #--end keywords--
  44         ]
  45
  46 kwdict = {}
  47 for keyword in kwlist:
  48     kwdict[keyword] = 1
  49
  50 iskeyword = kwdict.has_key
  51
  52 def main():
  53     import sys, re, string
  54
  55     args = sys.argv[1:]
  56     iptfile = args and args[0] or "Python/graminit.c"
  57     if len(args) > 1: optfile = args[1]
  58     else: optfile = "Lib/keyword.py"
  59
  60     # scan the source file for keywords
  61     fp = open(iptfile)
  62     strprog = re.compile('"([^"]+)"')
  63     lines = []
  64     while 1:
  65         line = fp.readline()
  66         if not line: break
  67         if string.find(line, '{1, "') > -1:
  68             match = strprog.search(line)
  69             if match:
  70                 lines.append("        '" + match.group(1) + "',\n")
  71     fp.close()
  72     lines.sort()
  73
  74     # load the output skeleton from the target
  75     fp = open(optfile)
  76     format = fp.readlines()
  77     fp.close()
  78
  79     # insert the lines of keywords
  80     try:
  81         start = format.index("#--start keywords--\n") + 1
  82         end = format.index("#--end keywords--\n")
  83         format[start:end] = lines
  84     except ValueError:
  85         sys.stderr.write("target does not contain format markers\n")
  86         sys.exit(1)
  87
  88     # write the output file
  89     fp = open(optfile, 'w')
  90     fp.write(string.join(format, ''))
  91     fp.close()
  92
  93 if __name__ == "__main__":
  94     main()