Find: <!--#include virtual="\/includes\/(.+).ssi" -->
Replace: {% include '$1.twig' %}
Find: <!--#include (?:virtual|file)="(.+).ssi" -->
Replace: {% include '$1.twig' %}
Find: (?<={% include ')\/?includes\/
Replace:
Find: <!-- InstanceParam name="(.+)" .+ value="(.+)" -->
Replace: {% set $1 = "$2" %}
Find: <!--(.+)-->
Replace: {# $1 #}
Find: <!--([\s\S]*?)-->
Replace: {# $1 #}
Find: {#\s?(.+)\s?#}
Replace: {# $1 #}
Find: <!-- InstanceBeginEditable name="Main" ?-->([\S\s]+?)<!-- ?InstanceEndEditable
Replace: {% block content %}$1{% endblock %}