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proc
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self
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root
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proc
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thread-self
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root
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usr
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lib
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python3.6
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site-packages
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pycparser
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files >> //proc/self/root/proc/thread-self/root/usr/lib/python3.6/site-packages/pycparser/plyparser.py
#----------------------------------------------------------------- # plyparser.py # # PLYParser class and other utilites for simplifying programming # parsers with PLY # # Copyright (C) 2008-2015, Eli Bendersky # License: BSD #----------------------------------------------------------------- class Coord(object): """ Coordinates of a syntactic element. Consists of: - File name - Line number - (optional) column number, for the Lexer """ __slots__ = ('file', 'line', 'column', '__weakref__') def __init__(self, file, line, column=None): self.file = file self.line = line self.column = column def __str__(self): str = "%s:%s" % (self.file, self.line) if self.column: str += ":%s" % self.column return str class ParseError(Exception): pass class PLYParser(object): def _create_opt_rule(self, rulename): """ Given a rule name, creates an optional ply.yacc rule for it. The name of the optional rule is <rulename>_opt """ optname = rulename + '_opt' def optrule(self, p): p[0] = p[1] optrule.__doc__ = '%s : empty\n| %s' % (optname, rulename) optrule.__name__ = 'p_%s' % optname setattr(self.__class__, optrule.__name__, optrule) def _coord(self, lineno, column=None): return Coord( file=self.clex.filename, line=lineno, column=column) def _parse_error(self, msg, coord): raise ParseError("%s: %s" % (coord, msg))
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