{%- macro format_path(hops, path) -%}
{# 
usage: {% from 'formatter.jinja' import format_path -%} {{ format_path(hops, path_in ) }} 
created by: WJ4IoT, december 2025
#}

{%- if hops > 0 -%}
    {%- set ns = namespace(s='') -%}
    {%- for i in range(hops) -%}
    {%- set b = path[i*2 : i*2 + 2] -%}
    {%- set ns.s = ns.s + (('->' if ns.s else '') + b) -%}
    {%- endfor -%}
    {{ ns.s }}
{%- else -%}
    DM
{%- endif -%}
{%- endmacro -%}