ERB tags nested in escaped blocks are skipped

[toncid]

Hello,

I'm importing a ticket from Rails: rails/rails#18098

Please find @rafaelfranca's comment (rails/rails#18098 (comment)) for a repro example.

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It seems that ERB doesn't handle well tags embedded within another tag. My goal is to produce ERB code with some values prefilled in the first pass.

Input ERB code:

    <div>
        <%%= Results: <%= 'first' %> | <%= 'second' %> | <%= 'third' %> %>
    </div>

Produces the following output:

    <div>
        <%= Results: <%= 'first' %> | second | third %>
    </div>

Expected output is:

    <div>
        <%= Results: first | second | third %>
    </div>

The first nested ERB tag is skipped. The same happens when there is just one block nested.

This is reproducible in Rails v4.1.8, which is using Erubis v2.7.0.

[seuros]

I think this is the wrong repo. This repo was no updated since 2011.
If i recall correctly, ERubis is part of Ruby now.

[toncid]

Hm, that seems unlikely. The Erubis gem hasn't been updated since 2011 as well.