rneovim.git/test/functional/insert/insert_spec.lua, branch stable Neovim fork with Rahm's personal hacks. edit.c: Ensure undo sync when emulating <Esc>x #11706 2020-01-13T01:09:39+00:00 Matthew Malcomson hardenedapple@gmail.com 2020-01-13T01:09:39+00:00 dfb676fe0d64c708c0c334b09c947db1bae4736d After PR #8226 an unmapped META key in insert mode behaves like ESC-<key> (:help i_META). The behaviour does not fully match, since if <Esc>-<key> is pressed manually then since it were pressed manually `gotchars` would be called on the second <key> after insert-mode had already been left. This would mean that `may_sync_undo` (called from `gotchars`) would call `u_sync(FALSE)` on the second key (since we would be in normal mode). This overall means that <Meta-[something]> behaves differently with respect to undo than <Esc>[something] when the [something] makes a change. As an example, under `nvim -u NONE`: ihello<M-.>u leaves the buffer empty, while ihello<Esc>.u leaves the buffer with one instance of `hello`. - Fix by calling u_sync() manually in the new clause under `normalchar:` in `insert_handle_key`. - Update test in tui_spec.lua that accidentally relied on the old behaviour. 
After PR #8226 an unmapped META key in insert mode behaves like
ESC-<key> (:help i_META).

The behaviour does not fully match, since if <Esc>-<key> is pressed
manually then since it were pressed manually `gotchars` would be called
on the second <key> after insert-mode had already been left.

This would mean that `may_sync_undo` (called from `gotchars`) would
call `u_sync(FALSE)` on the second key (since we would be in normal
mode).

This overall means that <Meta-[something]> behaves differently with
respect to undo than <Esc>[something] when the [something] makes a
change.

As an example, under `nvim -u NONE`:
ihello<M-.>u

leaves the buffer empty, while
ihello<Esc>.u

leaves the buffer with one instance of `hello`.

- Fix by calling u_sync() manually in the new clause under
  `normalchar:` in `insert_handle_key`.
- Update test in tui_spec.lua that accidentally relied on the old behaviour.
 insert-mode: interpret unmapped META as ESC 2018-04-04T01:23:15+00:00 Justin M. Keyes justinkz@gmail.com 2018-04-03T23:08:07+00:00 224ebc0078f29ac3189d7fbd9a59b386ae2ee303 closes #2454 closes #8213 ref #7972 
closes #2454
closes #8213
ref #7972