{% for sub in sub_a, sub_b %}
{{sub.name}} ({{sub.percentage}}%)
{% endfor %}
{% for sub, side in (sub_a, "left"), (sub_b, "right") %}
{% for file in sub.files %}

{{file.name}} ({{file.percentage}}%)

                                {%- set ns = namespace(is_newline=true) -%}
                                {%- for frag in file.fragments -%}
                                    
                                        {%- for line in frag.content -%}
                                            {{line}}
                                            {%- set ns.is_newline = line.endswith('\n') -%}
                                        {%- endfor -%}
                                    
                                {%- endfor -%}
                            
{% endfor %}
{% endfor %}