Escaping overlay vars (mustache variables) inside template files about bbmustache HOT 2 CLOSED

Fixed using set delimiter: http://mustache.github.io/mustache.5.html

The trick is when we want to “escape” a variable we can change the delimiter right before, and after the variable declaration we change back to the default delimiter.

 { {{ name }}, [
        %% Application settings
        {environment, {{=<% %>=}}{{environment}}<%={{ }}=%>},
        {major, "{{=<% %>=}}{{major}}<%={{ }}=%>"},

        %% Network Settings
        {cluster_node_discover, {{=<% %>=}}{{cluster_node_discover}}<%={{ }}=%>},
        {server_interface, {{=<% %>=}}{{server_interface}}<%={{ }}=%> },
        { {{custom_parameter}}, param_value }
    ]}

With {{=<% %>=}} we change the delimiter as <% %>, then we declare the "escaped variable " {{cluster_node_discover}} and after that we set the default delimiter with <%={{ }}=%>

The template variable {{custom_parameter}} is not escaped and because the previous variables have the default delimiter set, this variable will be processed correctly by template engine.

I hope this helps

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Discussion was done on slack.
https://erlanger.slack.com/archives/C055DJA49/p1493986463810192

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