def __init__(self): # , predefined_symbols=None):
grammar.Parser.__init__(self)
pytoken.setup_tokens(self)
# remember how many tokens were loaded
self._basetokens_count = self._sym_count
# if predefined_symbols:
# self.load_symbols(predefined_symbols)
self.keywords = []
def __init__(self): # , predefined_symbols=None):
grammar.Parser.__init__(self)
pytoken.setup_tokens(self)
# remember how many tokens were loaded
self._basetokens_count = self._sym_count
# if predefined_symbols:
# self.load_symbols(predefined_symbols)
self.keywords = []
def build_parser(gramfile, parser=None):
"""reads a (EBNF) grammar definition and builds a parser for it"""
if parser is None:
parser = Parser()
setup_tokens(parser)
# XXX: clean up object dependencies
from pypy.rlib.streamio import open_file_as_stream
stream = open_file_as_stream(gramfile)
grammardef = stream.readall()
stream.close()
assert isinstance(grammardef, str)
source = GrammarSource(GRAMMAR_GRAMMAR, grammardef)
builder = EBNFBuilder(GRAMMAR_GRAMMAR, dest_parser=parser)
GRAMMAR_GRAMMAR.root_rules['grammar'].match(source, builder)
builder.resolve_rules()
parser.build_first_sets()
parser.keywords = builder.keywords
return parser
def build_parser(gramfile, parser=None):
"""reads a (EBNF) grammar definition and builds a parser for it"""
if parser is None:
parser = Parser()
setup_tokens(parser)
# XXX: clean up object dependencies
from pypy.rlib.streamio import open_file_as_stream
stream = open_file_as_stream(gramfile)
grammardef = stream.readall()
stream.close()
assert isinstance(grammardef, str)
source = GrammarSource(GRAMMAR_GRAMMAR, grammardef)
builder = EBNFBuilder(GRAMMAR_GRAMMAR, dest_parser=parser)
GRAMMAR_GRAMMAR.root_rules['grammar'].match(source, builder)
builder.resolve_rules()
parser.build_first_sets()
parser.keywords = builder.keywords
return parser
def setup_class(self):
self.parser = ParserStub()
setup_tokens(self.parser)