vis: use I and A instead of CTRL-O for new cursors in visual mode

I and A creates a new cursor at start/end of every selected line.

2 files changed, 18 insertions, 3 deletions

diff --git a/config.def.h b/config.def.h
index a2eabee..3736833 100644
--- a/config.def.h
+++ b/config.def.h
@@ -436,9 +436,10 @@ static KeyBinding vis_mode_visual[] = {
 	{ { CONTROL('N')            }, cursors_select_next, {                      } },
 	{ { CONTROL('X')            }, cursors_select_skip, {                      } },
 	{ { CONTROL('P')            }, cursors_remove, {                           } },
+	{ { NONE('I')               }, cursors_split,  { .i = -1                   } },
+	{ { NONE('A')               }, cursors_split,  { .i = +1                   } },
 	{ { KEY(BACKSPACE)          }, operator,       { .i = OP_DELETE            } },
 	{ { KEY(DELETE)             }, operator,       { .i = OP_DELETE            } },
-	{ { CONTROL('O')            }, operator,       { .i = OP_CURSOR            } },
 	{ { NONE(ESC)               }, switchmode,     { .i = VIS_MODE_NORMAL      } },
 	{ { CONTROL('c')            }, switchmode,     { .i = VIS_MODE_NORMAL      } },
 	{ { NONE('v')               }, switchmode,     { .i = VIS_MODE_NORMAL      } },
diff --git a/vis.c b/vis.c
index ba2e94d..5b499ba 100644
--- a/vis.c
+++ b/vis.c
@@ -326,6 +326,9 @@ static void totill_reverse(const Arg *arg);
 static void replace(const Arg *arg);
 /* create a new cursor on the previous (arg->i < 0) or next (arg->i > 0) line */
 static void cursors_new(const Arg *arg);
+/* create new cursors in visual mode either at the start (arg-i < 0)
+ * or end (arg->i > 0) of the selected lines */
+static void cursors_split(const Arg *arg);
 /* try to align all cursors on the same column */
 static void cursors_align(const Arg *arg);
 /* remove all but the primary cursor and their selections */
@@ -595,8 +598,14 @@ static size_t op_cursor(OperatorContext *c) {
 	Filerange r = text_range_linewise(txt, &c->range);
 	for (size_t line = text_range_line_first(txt, &r); line != EPOS; line = text_range_line_next(txt, &r, line)) {
 		Cursor *cursor = view_cursors_new(view);
-		if (cursor)
-			view_cursors_to(cursor, text_line_start(txt, line));
+		if (cursor) {
+			size_t pos;
+			if (c->arg->i > 0)
+				pos = text_line_finish(txt, line);
+			else
+				pos = text_line_start(txt, line);
+			view_cursors_to(cursor, pos);
+		}
 	}
 	return EPOS;
 }
@@ -857,6 +866,11 @@ static void cursors_new(const Arg *arg) {
 		view_cursors_to(cursor, pos);
 }
 
+static void cursors_split(const Arg *arg) {
+	vis->action.arg = *arg;
+	operator(&(const Arg){ .i = OP_CURSOR });
+}
+
 static void cursors_align(const Arg *arg) {
 	View *view = vis->win->view;
 	Text *txt = vis->win->file->text;