New keystroke implementations

src/buf/buf_helpers.c

@@ -769,8 +769,22 @@ void buf_change_line(void) {
         return;
 
     buf_change_selection(&sel);
+    win->cursor.x = 0;
 }
 
+void buf_change_to_line_end(void) {
+    Buffer *buf = buf_cur();
+    Window *win = window_cur();
+    if (!PTR_VALID(buf) || !PTR_VALID(win))
+        return;
+
+    TextSelection sel;
+    if (!textobj_to_line_end(buf, win->cursor.y, win->cursor.x, &sel))
+        return;
+
+    buf_change_selection(&sel);
+    win->cursor.x = sel.start.col;
+}
 
 void buf_move_cursor_key(int key) {
 	BUFWIN(buf, win);

src/commands/cmd_misc.c

@@ -573,6 +573,7 @@ void cmd_new_line_above(const char *args) {
 
     win->cursor.x = 0;
     buf_insert_newline_in(buf);
+    win->cursor.y--;
     /* Cursor should now be on the new blank line above */
     ed_set_mode(MODE_INSERT);
 }

src/config.c

@@ -81,6 +81,11 @@ void normal_mode_bindings() {
     cmapn(".", "repeat");
     cmapn("q", "record");
     cmapn("@", "play");
+    cmapn("ZQ", "q!");
+    cmapn("ZZ", "wq"); // not quite the same as in neovim
+                       // ZZ in neovim writes to disk only if changes are made
+                       // whereas :wq always writes to disk
+
     /* $, 0, w, b, e movements now handled by text object fallback */
     mapn("%", buf_find_matching_bracket, "match bracket");
     mapv("%", buf_find_matching_bracket, "match bracket");
@@ -162,6 +167,11 @@ void normal_mode_bindings() {
     mapn("zR", kb_fold_open_all, "open all folds");
     mapn("zz", buf_center_screen, "center screen");
     mapn("~", kb_toggle_case, "toggle case");
+
+    // one-offs
+    mapn("D", kb_delete_to_line_end, "del to line end");
+    mapn("C", buf_change_to_line_end, "change to line end");
+    mapn("S", buf_change_line, "change line");
 }
 
 void user_keybinds_init(void) {

src/keybinds_builtins.c

@@ -318,6 +318,17 @@ void kb_delete_line(void) {
     buf_delete_selection(&sel);
 }
 
+void kb_delete_to_line_end(void) {
+    ASSERT_EDIT(buf, win);
+
+    TextSelection sel;
+    if (!textobj_to_line_end(buf, win->cursor.y, win->cursor.x, &sel))
+        return;
+
+    buf_delete_selection(&sel);
+    win->cursor.x = sel.start.col > 0 ? sel.start.col - 1 : 0;
+}
+
 void kb_yank_line(void) {
 	BUFWIN(buf, win)
     buf_yank_line_in(buf);

src/keybinds_builtins.h

@@ -17,6 +17,7 @@ void kb_enter_insert_mode(void);
 void kb_append_mode(void);
 void kb_enter_command_mode(void);
 void kb_delete_line(void);
+void kb_delete_to_line_end(void);
 void kb_yank_line(void);
 void kb_paste(void);
 void kb_delete_char(void);