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tricky - undo function - planning info
From: |
gnuist006 |
Subject: |
tricky - undo function - planning info |
Date: |
Sun, 7 Jun 2015 13:42:53 -0700 (PDT) |
User-agent: |
G2/1.0 |
Hi All.
Normally M-x undo would undo each step. A function may comprise one or more
steps. When a function is applied, and then undone, it is not clear how many
steps of undo are really needed. This is really a very basic need and should
have been addressed - and solved decades ago. I am looking for a good plan of
what to do to achieve this functionality and basic facility. For example,
something from the interpreter needs to be accessed about each function
executed to indicate its number of elementary steps and this data stored
elsewhere so an undo-function can be applied without any bugs.
Then again, maybe it is already implemented and undocumented, or there is a
simple solution.
Bolega
- tricky - undo function - planning info,
gnuist006 <=