def grammar(self, ast, *args):
directives = OrderedDict((d.name, d.value) for d in ast.directives)
keywords = set(ast.keywords or [])
return grammars.Grammar(self.grammar_name,
list(self.rules.values()),
directives=directives,
keywords=keywords)
def grammar(self, ast, *args):
directives = OrderedDict(
(d.name, d.value) for d in flatten(ast.directives))
keywords = set(flatten(ast.keywords) or [])
if directives.get('whitespace') in ('None', 'False'):
directives['whitespace'] = ''
return grammars.Grammar(self.grammar_name,
list(self.rules.values()),
directives=directives,
keywords=keywords)
def generate_tatsu_grammar(grammar: gll_grammar.Grammar, extra_rules=()) -> tatsu_grammars.Grammar:
tatsu_rules = list(extra_rules)
for (symbol, rule) in grammar.rules.items():
tatsu_rule = tatsu_grammars.Rule(
ast=None,
name=symbol,
exp=node_to_tatsu(rule),
params=None,
kwparams=None,
)
tatsu_rules.append(tatsu_rule)
return tatsu_grammars.Grammar(name=grammar.name, rules=tatsu_rules)
def grammar(self, ast):
return model.Grammar(
self.name,
[r for r in chain(ast.rules, self.synthetic_rules) if r is not None]
)
def grammar(self, ast):
return model.Grammar(self.name,
[r for r in ast.rules if r is not None])