vis: restructure register handling

Decouple register content from cursors. Previously each cursor had
exactly one corresponding register. Now each register can save a
list of values whose lifetime is not tied to the cursor.

If multiple cursors exist and a put with a register holding only
a single value is performed, then this value is inserted at every
cursor location. If there are fewer values available than cursors,
then only the matching ones will be used. If a register holding
multiple values is inserted in a single cursor context, only the
first value will be used. Another option would be to join all
existing values. The details of this behavior might be changed
in the future.

<C-r> in insert mode has not yet been adapted and register handling
in general needs to be cleaned up further.

Fix #527

1 files changed, 0 insertions, 6 deletions

diff --git a/view.c b/view.c
index 7e893ff..76410aa 100644
--- a/view.c
+++ b/view.c
@@ -55,7 +55,6 @@ struct Cursor {             /* cursor position */
 	Selection *sel;     /* selection (if any) which folows the cursor upon movement */
 	Mark lastsel_anchor;/* previously used selection data, */
 	Mark lastsel_cursor;/* used to restore it */
-	Register reg;       /* per cursor register to support yank/put operation */
 	int generation;     /* used to filter out newly created cursors during iteration */
 	int number;         /* how many cursors are located before this one */
 	View *view;         /* associated view to which this cursor belongs */
@@ -1005,7 +1004,6 @@ bool view_cursors_multiple(View *view) {
 static void view_cursors_free(Cursor *c) {
 	if (!c)
 		return;
-	register_release(&c->reg);
 	for (Cursor *after = c->next; after; after = after->next)
 		after->number--;
 	if (c->prev)
@@ -1119,10 +1117,6 @@ int view_cursors_cell_set(Cursor *c, int cell) {
 	return c->col;
 }
 
-Register *view_cursors_register(Cursor *c) {
-	return &c->reg;
-}
-
 void view_cursors_scroll_to(Cursor *c, size_t pos) {
 	View *view = c->view;
 	if (view->cursor == c) {