1 #! /usr/bin/env python

     2 

     3 """Token constants (from "token.h")."""

     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/token.py

    11 

    12 #--start constants--

    13 ENDMARKER = 0

    14 NAME = 1

    15 NUMBER = 2

    16 STRING = 3

    17 NEWLINE = 4

    18 INDENT = 5

    19 DEDENT = 6

    20 LPAR = 7

    21 RPAR = 8

    22 LSQB = 9

    23 RSQB = 10

    24 COLON = 11

    25 COMMA = 12

    26 SEMI = 13

    27 PLUS = 14

    28 MINUS = 15

    29 STAR = 16

    30 SLASH = 17

    31 VBAR = 18

    32 AMPER = 19

    33 LESS = 20

    34 GREATER = 21

    35 EQUAL = 22

    36 DOT = 23

    37 PERCENT = 24

    38 BACKQUOTE = 25

    39 LBRACE = 26

    40 RBRACE = 27

    41 EQEQUAL = 28

    42 NOTEQUAL = 29

    43 LESSEQUAL = 30

    44 GREATEREQUAL = 31

    45 TILDE = 32

    46 CIRCUMFLEX = 33

    47 LEFTSHIFT = 34

    48 RIGHTSHIFT = 35

    49 DOUBLESTAR = 36

    50 PLUSEQUAL = 37

    51 MINEQUAL = 38

    52 STAREQUAL = 39

    53 SLASHEQUAL = 40

    54 PERCENTEQUAL = 41

    55 AMPEREQUAL = 42

    56 VBAREQUAL = 43

    57 CIRCUMFLEXEQUAL = 44

    58 LEFTSHIFTEQUAL = 45

    59 RIGHTSHIFTEQUAL = 46

    60 DOUBLESTAREQUAL = 47

    61 DOUBLESLASH = 48

    62 DOUBLESLASHEQUAL = 49

    63 AT = 50

    64 OP = 51

    65 ERRORTOKEN = 52

    66 N_TOKENS = 53

    67 NT_OFFSET = 256

    68 #--end constants--

    69 

    70 tok_name = {}

    71 for _name, _value in globals().items():

    72     if type(_value) is type(0):

    73         tok_name[_value] = _name

    74 

    75 

    76 def ISTERMINAL(x):

    77     return x < NT_OFFSET

    78 

    79 def ISNONTERMINAL(x):

    80     return x >= NT_OFFSET

    81 

    82 def ISEOF(x):

    83     return x == ENDMARKER

    84 

    85 

    86 def main():

    87     import re

    88     import sys

    89     args = sys.argv[1:]

    90     inFileName = args and args[0] or "Include/token.h"

    91     outFileName = "Lib/token.py"

    92     if len(args) > 1:

    93         outFileName = args[1]

    94     try:

    95         fp = open(inFileName)

    96     except IOError, err:

    97         sys.stdout.write("I/O error: %s\n" % str(err))

    98         sys.exit(1)

    99     lines = fp.read().split("\n")

   100     fp.close()

   101     prog = re.compile(

   102         "#define[ \t][ \t]*([A-Z0-9][A-Z0-9_]*)[ \t][ \t]*([0-9][0-9]*)",

   103         re.IGNORECASE)

   104     tokens = {}

   105     for line in lines:

   106         match = prog.match(line)

   107         if match:

   108             name, val = match.group(1, 2)

   109             val = int(val)

   110             tokens[val] = name          # reverse so we can sort them...

   111     keys = tokens.keys()

   112     keys.sort()

   113     # load the output skeleton from the target:

   114     try:

   115         fp = open(outFileName)

   116     except IOError, err:

   117         sys.stderr.write("I/O error: %s\n" % str(err))

   118         sys.exit(2)

   119     format = fp.read().split("\n")

   120     fp.close()

   121     try:

   122         start = format.index("#--start constants--") + 1

   123         end = format.index("#--end constants--")

   124     except ValueError:

   125         sys.stderr.write("target does not contain format markers")

   126         sys.exit(3)

   127     lines = []

   128     for val in keys:

   129         lines.append("%s = %d" % (tokens[val], val))

   130     format[start:end] = lines

   131     try:

   132         fp = open(outFileName, 'w')

   133     except IOError, err:

   134         sys.stderr.write("I/O error: %s\n" % str(err))

   135         sys.exit(4)

   136     fp.write("\n".join(format))

   137     fp.close()

   138 

   139 

   140 if __name__ == "__main__":

   141     main()