Function group_period

sqlparse/engine/grouping.py:164–191

(tlist)

def group_period(tlist):
    def match(token):
        for ttype, value in ((T.Punctuation, '.'),
                             (T.Operator, '->'),
                             (T.Operator, '->>')):
            if token.match(ttype, value):
                return True
        return False

    def valid_prev(token):
        sqlcls = sql.SquareBrackets, sql.Identifier
        ttypes = T.Name, T.String.Symbol
        return imt(token, i=sqlcls, t=ttypes)

    def valid_next(token):
        # issue261, allow invalid next token
        return True

    def post(tlist, pidx, tidx, nidx):
        # next_ validation is being performed here. issue261
        sqlcls = sql.SquareBrackets, sql.Function
        ttypes = T.Name, T.String.Symbol, T.Wildcard, T.String.Single
        next_ = tlist[nidx] if nidx is not None else None
        valid_next = imt(next_, i=sqlcls, t=ttypes)

        return (pidx, nidx) if valid_next else (pidx, tidx)

    _group(tlist, sql.Identifier, match, valid_prev, valid_next, post)


def group_as(tlist):