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c:\python24\lib \ token.py



0001 #! /usr/bin/env python
0002 
0003 """Token constants (from "token.h")."""
0004 
0005 #  This file is automatically generated; please don't muck it up!
0006 #
0007 #  To update the symbols in this file, 'cd' to the top directory of
0008 #  the python source tree after building the interpreter and run:
0009 #
0010 #    python Lib/token.py
0011 
0012 #--start constants--
0013 ENDMARKER = 0
0014 NAME = 1
0015 NUMBER = 2
0016 STRING = 3
0017 NEWLINE = 4
0018 INDENT = 5
0019 DEDENT = 6
0020 LPAR = 7
0021 RPAR = 8
0022 LSQB = 9
0023 RSQB = 10
0024 COLON = 11
0025 COMMA = 12
0026 SEMI = 13
0027 PLUS = 14
0028 MINUS = 15
0029 STAR = 16
0030 SLASH = 17
0031 VBAR = 18
0032 AMPER = 19
0033 LESS = 20
0034 GREATER = 21
0035 EQUAL = 22
0036 DOT = 23
0037 PERCENT = 24
0038 BACKQUOTE = 25
0039 LBRACE = 26
0040 RBRACE = 27
0041 EQEQUAL = 28
0042 NOTEQUAL = 29
0043 LESSEQUAL = 30
0044 GREATEREQUAL = 31
0045 TILDE = 32
0046 CIRCUMFLEX = 33
0047 LEFTSHIFT = 34
0048 RIGHTSHIFT = 35
0049 DOUBLESTAR = 36
0050 PLUSEQUAL = 37
0051 MINEQUAL = 38
0052 STAREQUAL = 39
0053 SLASHEQUAL = 40
0054 PERCENTEQUAL = 41
0055 AMPEREQUAL = 42
0056 VBAREQUAL = 43
0057 CIRCUMFLEXEQUAL = 44
0058 LEFTSHIFTEQUAL = 45
0059 RIGHTSHIFTEQUAL = 46
0060 DOUBLESTAREQUAL = 47
0061 DOUBLESLASH = 48
0062 DOUBLESLASHEQUAL = 49
0063 AT = 50
0064 OP = 51
0065 ERRORTOKEN = 52
0066 N_TOKENS = 53
0067 NT_OFFSET = 256
0068 #--end constants--
0069 
0070 tok_name = {}
0071 for _name, _value in globals().items():
0072     if type(_value) is type(0):
0073         tok_name[_value] = _name
0074 
0075 
0076 def ISTERMINAL(x):
0077     return x < NT_OFFSET
0078 
0079 def ISNONTERMINAL(x):
0080     return x >= NT_OFFSET
0081 
0082 def ISEOF(x):
0083     return x == ENDMARKER
0084 
0085 
0086 def main():
0087     import re
0088     import sys
0089     args = sys.argv[1:]
0090     inFileName = args and args[0] or "Include/token.h"
0091     outFileName = "Lib/token.py"
0092     if len(args) > 1:
0093         outFileName = args[1]
0094     try:
0095         fp = open(inFileName)
0096     except IOError, err:
0097         sys.stdout.write("I/O error: %s\n" % str(err))
0098         sys.exit(1)
0099     lines = fp.read().split("\n")
0100     fp.close()
0101     prog = re.compile(
0102         "#define[ \t][ \t]*([A-Z0-9][A-Z0-9_]*)[ \t][ \t]*([0-9][0-9]*)",
0103         re.IGNORECASE)
0104     tokens = {}
0105     for line in lines:
0106         match = prog.match(line)
0107         if match:
0108             name, val = match.group(1, 2)
0109             val = int(val)
0110             tokens[val] = name          # reverse so we can sort them...
0111     keys = tokens.keys()
0112     keys.sort()
0113     # load the output skeleton from the target:
0114     try:
0115         fp = open(outFileName)
0116     except IOError, err:
0117         sys.stderr.write("I/O error: %s\n" % str(err))
0118         sys.exit(2)
0119     format = fp.read().split("\n")
0120     fp.close()
0121     try:
0122         start = format.index("#--start constants--") + 1
0123         end = format.index("#--end constants--")
0124     except ValueError:
0125         sys.stderr.write("target does not contain format markers")
0126         sys.exit(3)
0127     lines = []
0128     for val in keys:
0129         lines.append("%s = %d" % (tokens[val], val))
0130     format[start:end] = lines
0131     try:
0132         fp = open(outFileName, 'w')
0133     except IOError, err:
0134         sys.stderr.write("I/O error: %s\n" % str(err))
0135         sys.exit(4)
0136     fp.write("\n".join(format))
0137     fp.close()
0138 
0139 
0140 if __name__ == "__main__":
0141     main()
0142 

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