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160 lines
3.7 KiB
Python
160 lines
3.7 KiB
Python
"""Token constants (from "token.h")."""
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__all__ = ['tok_name', 'ISTERMINAL', 'ISNONTERMINAL', 'ISEOF']
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# This file is automatically generated; please don't muck it up!
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#
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# To update the symbols in this file, 'cd' to the top directory of
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# the python source tree after building the interpreter and run:
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#
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# ./python Lib/token.py
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#--start constants--
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ENDMARKER = 0
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NAME = 1
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NUMBER = 2
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STRING = 3
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NEWLINE = 4
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INDENT = 5
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DEDENT = 6
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LPAR = 7
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RPAR = 8
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LSQB = 9
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RSQB = 10
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COLON = 11
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COMMA = 12
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SEMI = 13
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PLUS = 14
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MINUS = 15
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STAR = 16
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SLASH = 17
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VBAR = 18
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AMPER = 19
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LESS = 20
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GREATER = 21
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EQUAL = 22
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DOT = 23
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PERCENT = 24
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LBRACE = 25
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RBRACE = 26
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EQEQUAL = 27
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NOTEQUAL = 28
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LESSEQUAL = 29
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GREATEREQUAL = 30
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TILDE = 31
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CIRCUMFLEX = 32
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LEFTSHIFT = 33
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RIGHTSHIFT = 34
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DOUBLESTAR = 35
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PLUSEQUAL = 36
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MINEQUAL = 37
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STAREQUAL = 38
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SLASHEQUAL = 39
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PERCENTEQUAL = 40
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AMPEREQUAL = 41
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VBAREQUAL = 42
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CIRCUMFLEXEQUAL = 43
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LEFTSHIFTEQUAL = 44
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RIGHTSHIFTEQUAL = 45
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DOUBLESTAREQUAL = 46
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DOUBLESLASH = 47
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DOUBLESLASHEQUAL = 48
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AT = 49
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ATEQUAL = 50
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RARROW = 51
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ELLIPSIS = 52
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# Don't forget to update the table _PyParser_TokenNames in tokenizer.c!
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OP = 53
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ERRORTOKEN = 54
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# These aren't used by the C tokenizer but are needed for tokenize.py
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COMMENT = 55
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NL = 56
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ENCODING = 57
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N_TOKENS = 58
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# Special definitions for cooperation with parser
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NT_OFFSET = 256
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#--end constants--
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tok_name = {value: name
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for name, value in globals().items()
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if isinstance(value, int) and not name.startswith('_')}
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__all__.extend(tok_name.values())
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def ISTERMINAL(x):
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return x < NT_OFFSET
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def ISNONTERMINAL(x):
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return x >= NT_OFFSET
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def ISEOF(x):
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return x == ENDMARKER
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def _main():
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import re
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import sys
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args = sys.argv[1:]
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inFileName = args and args[0] or "Include/token.h"
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outFileName = "Lib/token.py"
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if len(args) > 1:
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outFileName = args[1]
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try:
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fp = open(inFileName)
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except OSError as err:
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sys.stdout.write("I/O error: %s\n" % str(err))
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sys.exit(1)
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with fp:
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lines = fp.read().split("\n")
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prog = re.compile(
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r"#define[ \t][ \t]*([A-Z0-9][A-Z0-9_]*)[ \t][ \t]*([0-9][0-9]*)",
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re.IGNORECASE)
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comment_regex = re.compile(
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r"^\s*/\*\s*(.+?)\s*\*/\s*$",
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re.IGNORECASE)
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tokens = {}
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prev_val = None
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for line in lines:
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match = prog.match(line)
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if match:
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name, val = match.group(1, 2)
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val = int(val)
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tokens[val] = {'token': name} # reverse so we can sort them...
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prev_val = val
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else:
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comment_match = comment_regex.match(line)
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if comment_match and prev_val is not None:
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comment = comment_match.group(1)
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tokens[prev_val]['comment'] = comment
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keys = sorted(tokens.keys())
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# load the output skeleton from the target:
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try:
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fp = open(outFileName)
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except OSError as err:
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sys.stderr.write("I/O error: %s\n" % str(err))
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sys.exit(2)
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with fp:
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format = fp.read().split("\n")
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try:
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start = format.index("#--start constants--") + 1
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end = format.index("#--end constants--")
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except ValueError:
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sys.stderr.write("target does not contain format markers")
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sys.exit(3)
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lines = []
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for key in keys:
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lines.append("%s = %d" % (tokens[key]["token"], key))
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if "comment" in tokens[key]:
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lines.append("# %s" % tokens[key]["comment"])
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format[start:end] = lines
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try:
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fp = open(outFileName, 'w')
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except OSError as err:
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sys.stderr.write("I/O error: %s\n" % str(err))
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sys.exit(4)
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with fp:
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fp.write("\n".join(format))
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if __name__ == "__main__":
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_main()
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