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-rw-r--r--src/nvim/mapping.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/src/nvim/mapping.c b/src/nvim/mapping.c
index e055ebc2fa..23efd2a841 100644
--- a/src/nvim/mapping.c
+++ b/src/nvim/mapping.c
@@ -568,6 +568,12 @@ static int buf_do_map(int maptype, MapArguments *args, int mode, bool is_abbrev,
mapblock_T **abbr_table = args->buffer ? &buf->b_first_abbr : &first_abbr;
mapblock_T *mp_result[2] = { NULL, NULL };
+ bool unmap_lhs_only = false;
+ if (maptype == MAPTYPE_UNMAP_LHS) {
+ unmap_lhs_only = true;
+ maptype = MAPTYPE_UNMAP;
+ }
+
// For ":noremap" don't remap, otherwise do remap.
int noremap = args->script ? REMAP_SCRIPT
: maptype == MAPTYPE_NOREMAP ? REMAP_NONE : REMAP_YES;
@@ -720,8 +726,8 @@ static int buf_do_map(int maptype, MapArguments *args, int mode, bool is_abbrev,
// entry with a matching 'to' part. This was done to allow ":ab foo bar"
// to be unmapped by typing ":unab foo", where "foo" will be replaced by
// "bar" because of the abbreviation.
- for (int round = 0; (round == 0 || maptype == MAPTYPE_UNMAP) && round <= 1
- && !did_it && !got_int; round++) {
+ const int num_rounds = maptype == MAPTYPE_UNMAP && !unmap_lhs_only ? 2 : 1;
+ for (int round = 0; round < num_rounds && !did_it && !got_int; round++) {
int hash_start, hash_end;
if ((round == 0 && has_lhs) || is_abbrev) {
// just use one hash
@@ -935,9 +941,11 @@ theend:
/// for :cabbr mode is MODE_CMDLINE
/// ```
///
-/// @param maptype MAPTYPE_MAP for |:map|
-/// MAPTYPE_UNMAP for |:unmap|
-/// MAPTYPE_NOREMAP for |:noremap|.
+/// @param maptype MAPTYPE_MAP for |:map| or |:abbr|
+/// MAPTYPE_UNMAP for |:unmap| or |:unabbr|
+/// MAPTYPE_NOREMAP for |:noremap| or |:noreabbr|
+/// MAPTYPE_UNMAP_LHS is like MAPTYPE_UNMAP, but doesn't try to match
+/// with {rhs} if there is no match with {lhs}.
/// @param arg C-string containing the arguments of the map/abbrev
/// command, i.e. everything except the initial `:[X][nore]map`.
/// - Cannot be a read-only string; it will be modified.
@@ -2348,7 +2356,7 @@ void f_mapset(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
MapArguments unmap_args = MAP_ARGUMENTS_INIT;
set_maparg_lhs_rhs(lhs, strlen(lhs), "", 0, LUA_NOREF, p_cpo, &unmap_args);
unmap_args.buffer = buffer;
- buf_do_map(MAPTYPE_UNMAP, &unmap_args, mode, is_abbr, curbuf);
+ buf_do_map(MAPTYPE_UNMAP_LHS, &unmap_args, mode, is_abbr, curbuf);
xfree(unmap_args.rhs);
xfree(unmap_args.orig_rhs);