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junie-undo

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This commit is contained in:
Kyle Isom
2025-11-29 11:55:55 -08:00
parent a574df2ab7
commit 0cfb06dff2
9 changed files with 388 additions and 57 deletions
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64
main.c
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@@ -1121,18 +1121,27 @@ insertch(const int16_t c)
* a row; it can just figure out where the cursor is
* at and what to do.
*/
if (ECURY == ENROWS) {
erow_insert(ENROWS, "", 0);
}
if (ECURY == ENROWS) {
erow_insert(ENROWS, "", 0);
}
/* Inserting ends kill ring chaining. */
editor.kill = 0;
/* Inserting ends kill ring chaining. */
editor.kill = 0;
row_insert_ch(&EROW[ECURY],
ECURX,
(int16_t) (c & 0xff));
ECURX++;
EDIRTY++;
/* Begin/append undo record for insert operations */
undo_tree *utree = &CURBUF->undo;
undo_begin(utree, UNDO_INSERT);
if (utree->pending && utree->pending->text.size == 0) {
utree->pending->row = ECURY;
utree->pending->col = ECURX;
}
undo_appendch(utree, (char)(c & 0xff));
row_insert_ch(&EROW[ECURY],
ECURX,
(int16_t) (c & 0xff));
ECURX++;
EDIRTY++;
}
@@ -1905,15 +1914,24 @@ move_cursor(const int16_t c, const int interactive)
void
newline(void)
{
abuf *row = NULL;
size_t rhs_len = 0;
char *tmp = NULL;
abuf *row = NULL;
size_t rhs_len = 0;
char *tmp = NULL;
if (ECURY >= ENROWS) {
erow_insert(ECURY, "", 0);
ECURY++;
ECURX = 0;
} else if (ECURX == 0) {
/* Begin/append undo record for insert operations (newline as '\n') */
undo_tree *utree = &CURBUF->undo;
undo_begin(utree, UNDO_INSERT);
if (utree->pending && utree->pending->text.size == 0) {
utree->pending->row = ECURY;
utree->pending->col = ECURX;
}
undo_appendch(utree, '\n');
if (ECURY >= ENROWS) {
erow_insert(ECURY, "", 0);
ECURY++;
ECURX = 0;
} else if (ECURX == 0) {
erow_insert(ECURY, "", 0);
ECURY++;
ECURX = 0;
@@ -2177,14 +2195,16 @@ process_kcommand(const int16_t c)
case 'u':
reps = uarg_get();
while (reps--) {}
editor_set_status("Undo not implemented.");
while (reps--) {
editor_undo(CURBUF);
}
break;
case 'U':
reps = uarg_get();
while (reps--) {}
editor_set_status("Redo not implemented.");
while (reps--) {
editor_redo(CURBUF);
}
break;
case 'y':
reps = uarg_get();