예제 #1
0
    def parse_subscribed(self):
        lineno = self.stream.current.lineno

        if self.stream.current.type == 'colon':
            next(self.stream)
            args = [None]
        else:
            node = self.parse_expression()
            if self.stream.current.type != 'colon':
                return node
            next(self.stream)
            args = [node]

        if self.stream.current.type == 'colon':
            args.append(None)
        elif self.stream.current.type not in ('rbracket', 'comma'):
            args.append(self.parse_expression())
        else:
            args.append(None)

        if self.stream.current.type == 'colon':
            next(self.stream)
            if self.stream.current.type not in ('rbracket', 'comma'):
                args.append(self.parse_expression())
            else:
                args.append(None)
        else:
            args.append(None)

        return nodes.Slice(lineno=lineno, *args)
예제 #2
0
def tablerow(
    token: "Token", parser: "Parser"
) -> Union[nodes.Node, List[nodes.Node]]:
    """The tablerow tag {% tablerow ... %} ... {% endtablerow %}

    Args:
        token: The token matches tag name
        parser: The parser

    Returns:
        The parsed node
    """
    target = parser.parse_assign_target(extra_end_rules=("name:in", ))
    parser.stream.expect("name:in")
    iter_ = parser.parse_tuple(
        with_condexpr=False,
        extra_end_rules=("name:cols", "name:limit", "name:offset"),
    )

    cols = parse_tag_args(parser.stream, "cols", token.lineno)
    limit = parse_tag_args(parser.stream, "limit", token.lineno)
    offset = parse_tag_args(parser.stream, "offset", token.lineno)

    if limit and offset:
        limit = nodes.Add(offset, limit)
    if limit or offset:
        iter_ = nodes.Getitem(iter_, nodes.Slice(offset, limit, None), "load")

    if cols:
        slice_start = nodes.Mul(nodes.Name("_tablerow_i", "load"), cols)
        inner_iter = nodes.Getitem(
            iter_,
            nodes.Slice(
                slice_start,
                nodes.Add(slice_start, cols),
                None,
            ),
            "load",
        )
    else:
        inner_iter: nodes.Getitem = iter_

    inner_body = [
        nodes.Output(
            [
                nodes.Const('<td class="col'),
                nodes.Getattr(nodes.Name("loop", "load"), "index", "load"),
                nodes.Const('">'),
            ]
        ),
        *parser.parse_statements(("name:endtablerow",), drop_needle=True),
        nodes.Output([nodes.Const("</td>")]),
    ]
    tr_begin = nodes.Output(
        [
            nodes.Const('<tr class="row'),
            nodes.CondExpr(
                nodes.Name("loop", "load"),
                nodes.Getattr(nodes.Name("loop", "load"), "index", "load"),
                nodes.Const(1),
            ),
            nodes.Const('">'),
        ]
    )
    tr_end = nodes.Output([nodes.Const("</tr>")])
    inner_loop = nodes.For(
        target, inner_iter, inner_body, [], None, False, lineno=token.lineno
    )
    if not cols:
        return [tr_begin, inner_loop, tr_end]

    # (iter_ | length) / cols
    iter_length = nodes.Div(
        nodes.Filter(iter_, "length", [], [], None, None),
        cols,
    )  # float
    # int(iter_length)
    iter_length_int = nodes.Filter(iter_length, "int", [], [], None, None)

    # implement ceil, as jinja's ceil is implemented as round(..., "ceil")
    # while liquid has a ceil filter
    # iter_length_int if iter_length == iter_length_int
    # else iter_length_int + 1
    iter_length = nodes.CondExpr(
        nodes.Compare(iter_length, [nodes.Operand("eq", iter_length_int)]),
        iter_length_int,
        nodes.Add(iter_length_int, nodes.Const(1)),
    )

    return nodes.For(
        nodes.Name("_tablerow_i", "store"),
        nodes.Call(nodes.Name("range", "load"), [iter_length], [], None, None),
        [tr_begin, inner_loop, tr_end],
        [],
        None,
        False,
        lineno=token.lineno,
    )