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fix(edit.c): indentkeys double indent after "!" #12894

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which is both unexpected and different from the Vim behaviour.

Indent was triggered once by the '!' check in insert_execute(), and
inserting the char was correctly skipped, but then triggered again in
insert_check() (provided that cindent was not being ignored after manual
indentation, i.e. `can_cindent == true`).

While this is the smallest fix, another solution would be to remove
VimState#check and instead move that to *_enter()/-_execute(), since the
control flow is pretty unnecessarily convoluted as is. That would also
have the benefit of differing less from the Vim source code.
This commit is contained in:
Axel Forsman
2022-08-22 06:48:18 +02:00
committed by GitHub
parent 4f6d0d6da9
commit d4d27c41b3
2 changed files with 16 additions and 7 deletions
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15
src/nvim/edit.c
View File

@@ -624,16 +624,17 @@ static int insert_execute(VimState *state, int key)
}
if (cindent_on() && ctrl_x_mode_none()) {
s->line_is_white = inindent(0);
// A key name preceded by a bang means this key is not to be
// inserted. Skip ahead to the re-indenting below.
// A key name preceded by a star means that indenting has to be
// done before inserting the key.
s->line_is_white = inindent(0);
if (in_cinkeys(s->c, '!', s->line_is_white)) {
insert_do_cindent(s);
if (in_cinkeys(s->c, '!', s->line_is_white)
&& stop_arrow() == OK) {
do_c_expr_indent();
return 1; // continue
}
// A key name preceded by a star means that indenting has to be
// done before inserting the key.
if (can_cindent && in_cinkeys(s->c, '*', s->line_is_white)
&& stop_arrow() == OK) {
do_c_expr_indent();
@@ -3657,7 +3658,7 @@ void fix_indent(void)
/// Check that "cinkeys" contains the key "keytyped",
/// when == '*': Only if key is preceded with '*' (indent before insert)
/// when == '!': Only if key is preceded with '!' (don't insert)
/// when == ' ': Only if key is not preceded with '*' (indent afterwards)
/// when == ' ': Only if key is not preceded with '*' or '!' (indent afterwards)
///
/// "keytyped" can have a few special values:
/// KEY_OPEN_FORW :
@@ -3697,7 +3698,7 @@ bool in_cinkeys(int keytyped, int when, bool line_is_empty)
case '!':
try_match = (*look == '!'); break;
default:
try_match = (*look != '*'); break;
try_match = (*look != '*') && (*look != '!'); break;
}
if (*look == '*' || *look == '!') {
look++;

8
test/functional/editor/mode_insert_spec.lua
View File

@@ -6,12 +6,20 @@ local expect = helpers.expect
local command = helpers.command
local eq = helpers.eq
local eval = helpers.eval
local curbuf_contents = helpers.curbuf_contents
describe('insert-mode', function()
before_each(function()
clear()
end)
it('indents only once after "!" keys #12894', function()
command('let counter = []')
command('set indentexpr=len(add(counter,0))')
feed('i<C-F>x')
eq(' x', curbuf_contents())
end)
it('CTRL-@', function()
-- Inserts last-inserted text, leaves insert-mode.
insert('hello')