Returns list of sections (horizontal cut, base level).

def _get_sections(request):
    """
    Returns list of sections (horizontal cut, base level).
    """
    sections = []
    for section_url in SECTIONS:
        crumb = find_crumb(request, section_url)
        if crumb:
            if section_url == '/':
                if request.path == section_url:
                    crumb.is_current = True
            else:
                if request.path.startswith(section_url):
                    crumb.is_current = True
            sections.append(crumb)

    return sections