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bug#6388: Should not match data be set on misses?
From: |
Stefan Monnier |
Subject: |
bug#6388: Should not match data be set on misses? |
Date: |
Thu, 10 Jun 2010 14:57:01 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
>> The main obstacle to such a change are:
>> - it breaks some code.
> Aka it makes some bugs (bad assumptions) surface. That is not always bad.
I really meant bugs, as in: the code consciously takes advantage of
current behavior. Those assumptions are only bad if we define them
that way.
> Yes, that is true. However the current behavior probably wastes a lot
> of time for those unaware of it.
Just like with programming with monitors where you're taught "always do
the wait within a `while' loop", regexp-patching should always take
place within a `if' or equivalent,
Stefan