Idea: allow literals

[diogobaeder]

One thing that could be implemented, which would be helpful, is the support to literal dollar signs.

Something like this:

foo: $${BAR}

would translate to:

foo: ${BAR}

after interpolation.

What do you think?

[lbolla]

I am not sure that's a good idea. Interpolation only happens if a substring like ${...} is found. So, dollar signs $ are allowed, as long as they don't form a substring like ${...}.
Maybe one could use bash syntax of not interpolating something enclosed in single quotes, instead of double quotes, but I am not sure this is a good idea either.
What particular use case are you trying to support?