Function group_comparison

sqlparse/engine/grouping.py:228–249

(tlist)

def group_comparison(tlist):
    sqlcls = (sql.Parenthesis, sql.Function, sql.Identifier,
              sql.Operation, sql.TypedLiteral)
    ttypes = T_NUMERICAL + T_STRING + T_NAME

    def match(token):
        return token.ttype == T.Operator.Comparison

    def valid(token):
        if imt(token, t=ttypes, i=sqlcls):
            return True
        elif token and token.is_keyword and token.normalized == 'NULL':
            return True
        else:
            return False

    def post(tlist, pidx, tidx, nidx):
        return pidx, nidx

    valid_prev = valid_next = valid
    _group(tlist, sql.Comparison, match,
           valid_prev, valid_next, post, extend=False)


@recurse(sql.Identifier)