Function children_section

xarray/core/formatting_html.py:554–585

(
    children: Mapping[str, DataTree], displays: dict[str, _DataTreeDisplay]
)

def children_section(
    children: Mapping[str, DataTree], displays: dict[str, _DataTreeDisplay]
) -> str:
    child_elements = []
    children_list = list(children.values())
    nchildren = len(children_list)
    max_children = int(OPTIONS["display_max_children"])

    if nchildren <= max_children:
        # Render all children
        for i, child in enumerate(children_list):
            is_last = i == nchildren - 1
            child_elements.append(datatree_child_repr(child, displays, end=is_last))
    else:
        # Truncate: show first ceil(max/2), ellipsis, last floor(max/2)
        first_n = ceil(max_children / 2)
        last_n = max_children - first_n

        child_elements.extend(
            datatree_child_repr(children_list[i], displays, end=False)
            for i in range(first_n)
        )

        child_elements.append(_ellipsis_element())

        child_elements.extend(
            datatree_child_repr(children_list[i], displays, end=(i == nchildren - 1))
            for i in range(nchildren - last_n, nchildren)
        )

    children_html = "".join(child_elements)
    return f"<div class='xr-children'>{children_html}</div>"


def datatree_sections(