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vim-patch:8.2.4861: it is not easy to restore saved mappings

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Problem:    It is not easy to restore saved mappings.
Solution:   Make mapset() accept a dict argument. (Ernie Rael, closes vim/vim#10295)

51d04d16f2

Co-authored-by: Ernie Rael <errael@raelity.com>
This commit is contained in:
zeertzjq
2023-11-09 19:48:50 +08:00
parent d4dbfb092b
commit f748a73a35
9 changed files with 350 additions and 41 deletions
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34
src/nvim/eval.lua
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@@ -6194,6 +6194,7 @@ M.funcs = {
"lnum" The line number in "sid", zero if unknown.
"nowait" Do not wait for other, longer mappings.
(|:map-<nowait>|).
"abbr" True if this is an |abbreviation|.
The dictionary can be used to restore a mapping with
|mapset()|.
@@ -6287,12 +6288,20 @@ M.funcs = {
signature = 'mapnew({expr1}, {expr2})',
},
mapset = {
args = 3,
args = { 1, 3 },
base = 1,
desc = [=[
Restore a mapping from a dictionary returned by |maparg()|.
{mode} and {abbr} should be the same as for the call to
|maparg()|. *E460*
Restore a mapping from a dictionary, possibly returned by
|maparg()| or |maplist()|. A buffer mapping, when dict.buffer
is true, is set on the current buffer; it is up to the caller
to ensure that the intended buffer is the current buffer. This
feature allows copying mappings from one buffer to another.
The dict.mode value may restore a single mapping that covers
more than one mode, like with mode values of '!', ' ', "nox",
or 'v'. *E1276*
In the first form, {mode} and {abbr} should be the same as
for the call to |maparg()|. *E460*
{mode} is used to define the mode in which the mapping is set,
not the "mode" entry in {dict}.
Example for saving and restoring a mapping: >vim
@@ -6301,8 +6310,21 @@ M.funcs = {
" ...
call mapset('n', 0, save_map)
<Note that if you are going to replace a map in several modes,
e.g. with `:map!`, you need to save the mapping for all of
them, since they can differ.
e.g. with `:map!`, you need to save/restore the mapping for
all of them, when they might differ.
In the second form, with {dict} as the only argument, mode
and abbr are taken from the dict.
Example: >vim
let save_maps = maplist()->filter(
\ {_, m -> m.lhs == 'K'})
nnoremap K somethingelse
cnoremap K somethingelse2
" ...
unmap K
for d in save_maps
call mapset(d)
endfor
]=],
name = 'mapset',
params = { { 'mode', 'string' }, { 'abbr', 'any' }, { 'dict', 'any' } },