def _group_expand(start, end, context):
start\
.connect(tn(PAR_OPEN))\
.connect(_BranchRule('branch'))\
.connect(zeroToMany(sequence(tn(OR), _BranchRule('branch'))))\
.connect(tn(PAR_CLOSE))\
.connect(end)
def expand(self, start, end, context):
start\
.connect(zeroToMany(fork(
_CommentRule('comment-style'),
_EnableRule('enable'),
_TokensRule('tokens'),
_RuleRule('rule')
)))\
.connect(end)
def _rule_expand(start, end, context):
branch = _BranchRule('branch')
start\
.connect(zeroToOne(tn(GRAMMAR_ANNOTATION, 'is-grammar')))\
.connect(tn(RULE_ID, 'rule-id'))\
.connect(tn(ASSIGN))\
.connect(branch)\
.connect(zeroToMany(sequence(tn(OR), branch)))\
.connect(tn(SEMICOLON))\
.connect(end)
