[bug #62264] string iteration handles escape sequences inconsistently (want `for` request)

[G. Branden Robinson]

Follow-up Comment #2, bug #62264 (project groff):

I had wondered idly if we needed a reverse iterator.

I thought, "surely not".

I'm thinking again.

See bug #64114, where I want to traverse backward along a string and truncate
it (toward the front) upon first hitting a slash.

Another possibility would be to have a node-list reversing request.

But that seems like a dangerous gun to hand the user.

On the other hand you can already suicide as hard as you like by walking
strings/macros/diversions with .substring and mangling them.  So...maybe. 


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