Mercurial > cpython-lru_cache-weakref

annotate Lib/token.py @ 80661:94de77bd0b4b 2.7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents 05a808bc6867
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #! /usr/bin/env python
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2
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3 """Token constants (from "token.h")."""
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4
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5 # This file is automatically generated; please don't muck it up!
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6 #
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7 # To update the symbols in this file, 'cd' to the top directory of
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8 # the python source tree after building the interpreter and run:
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9 #
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10 # ./python Lib/token.py
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11
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12 #--start constants--
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13 ENDMARKER = 0
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14 NAME = 1
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15 NUMBER = 2
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16 STRING = 3
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17 NEWLINE = 4
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18 INDENT = 5
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19 DEDENT = 6
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20 LPAR = 7
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21 RPAR = 8
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22 LSQB = 9
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23 RSQB = 10
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24 COLON = 11
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25 COMMA = 12
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26 SEMI = 13
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27 PLUS = 14
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28 MINUS = 15
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29 STAR = 16
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30 SLASH = 17
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31 VBAR = 18
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32 AMPER = 19
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33 LESS = 20
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34 GREATER = 21
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35 EQUAL = 22
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36 DOT = 23
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37 PERCENT = 24
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38 BACKQUOTE = 25
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39 LBRACE = 26
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40 RBRACE = 27
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41 EQEQUAL = 28
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42 NOTEQUAL = 29
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43 LESSEQUAL = 30
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44 GREATEREQUAL = 31
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45 TILDE = 32
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46 CIRCUMFLEX = 33
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47 LEFTSHIFT = 34
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48 RIGHTSHIFT = 35
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49 DOUBLESTAR = 36
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50 PLUSEQUAL = 37
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51 MINEQUAL = 38
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52 STAREQUAL = 39
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53 SLASHEQUAL = 40
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54 PERCENTEQUAL = 41
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55 AMPEREQUAL = 42
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56 VBAREQUAL = 43
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57 CIRCUMFLEXEQUAL = 44
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58 LEFTSHIFTEQUAL = 45
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59 RIGHTSHIFTEQUAL = 46
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60 DOUBLESTAREQUAL = 47
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61 DOUBLESLASH = 48
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62 DOUBLESLASHEQUAL = 49
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63 AT = 50
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64 OP = 51
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65 ERRORTOKEN = 52
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66 N_TOKENS = 53
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67 NT_OFFSET = 256
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68 #--end constants--
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69
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70 tok_name = {}
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71 for _name, _value in globals().items():
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72 if type(_value) is type(0):
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73 tok_name[_value] = _name
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74 del _name, _value
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75
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76
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77 def ISTERMINAL(x):
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78 return x < NT_OFFSET
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79
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80 def ISNONTERMINAL(x):
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81 return x >= NT_OFFSET
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82
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83 def ISEOF(x):
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84 return x == ENDMARKER
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85
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86
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87 def main():
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88 import re
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89 import sys
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90 args = sys.argv[1:]
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91 inFileName = args and args[0] or "Include/token.h"
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92 outFileName = "Lib/token.py"
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93 if len(args) > 1:
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94 outFileName = args[1]
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95 try:
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96 fp = open(inFileName)
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97 except IOError, err:
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98 sys.stdout.write("I/O error: %s\n" % str(err))
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99 sys.exit(1)
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100 lines = fp.read().split("\n")
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101 fp.close()
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102 prog = re.compile(
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103 "#define[ \t][ \t]*([A-Z0-9][A-Z0-9_]*)[ \t][ \t]*([0-9][0-9]*)",
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104 re.IGNORECASE)
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105 tokens = {}
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106 for line in lines:
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107 match = prog.match(line)
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108 if match:
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109 name, val = match.group(1, 2)
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110 val = int(val)
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111 tokens[val] = name # reverse so we can sort them...
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112 keys = tokens.keys()
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113 keys.sort()
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114 # load the output skeleton from the target:
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115 try:
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116 fp = open(outFileName)
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117 except IOError, err:
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118 sys.stderr.write("I/O error: %s\n" % str(err))
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119 sys.exit(2)
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120 format = fp.read().split("\n")
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121 fp.close()
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122 try:
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123 start = format.index("#--start constants--") + 1
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124 end = format.index("#--end constants--")
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125 except ValueError:
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126 sys.stderr.write("target does not contain format markers")
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127 sys.exit(3)
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128 lines = []
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129 for val in keys:
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130 lines.append("%s = %d" % (tokens[val], val))
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131 format[start:end] = lines
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132 try:
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133 fp = open(outFileName, 'w')
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134 except IOError, err:
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135 sys.stderr.write("I/O error: %s\n" % str(err))
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136 sys.exit(4)
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137 fp.write("\n".join(format))
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138 fp.close()
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Guido van Rossum <guido@python.org>
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139
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140
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parents: 3754
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141 if __name__ == "__main__":
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142 main()