On Sat, Feb 11, 2017 at 3:48 PM, Fabien COELHO <coe...@cri.ensmp.fr> wrote:

> Just realized that '?' means "unknown transactional status" in %x. That
>> might cause confusion if a person had a prompt of %x%R. Is that enough
>> reason to pick a different cue?
> Argh.
> "\?\.?[tfz]" seems distinctive enough. Note that %R uses "'=-*^!$( and %x
> uses *!?, which means that they already share 2 characters, so adding ?
> does not seem like a big issue if it was not one before.
> Otherwise, maybe "&" or "%", but it is less about a condition.

Fair enough, it shouldn't be too confusing then.

The get_prompt() function can see the global pset, obviously, but can't see
the scan_state, where the if-stack currently resides. I could give up on
the notion of a per-file if-stack and just have one in pset, but that might
make life difficult for whomever is brave enough to tackle \while loops. Or
I could give pset a pointer to the current if-stack inside the scan_state,
or I could have pset hold a stack of stacks. Unsure which way would be

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