forward and backward word

4 files changed, 62 insertions, 12 deletions

diff --git a/README.md b/README.md
index 4f6b2ea..16a8fb4 100644
--- a/README.md
+++ b/README.md
@@ -27,9 +27,10 @@ Q: What is an ENU?
 - [x] page scroll
 - [x] emacs keybindings
 - [x] "prompt"
-- [ ] fuzzy filter
+- [x] fuzzy filter
 - [ ] config file
-- [ ] unicode + shaping
+- [ ] scrolling in input
+- [ ] unicode + text shaping
 
 Stretch:
 - [ ] input fluff (icons, descriptions, output names)
diff --git a/input_field.c b/input_field.c
index d24239c..ab0492f 100644
--- a/input_field.c
+++ b/input_field.c
@@ -104,7 +104,7 @@ key_repeat_t type_key(client_state* state, xkb_keysym_t keysym) {
 			case XKB_KEY_p: return select_previous(state);
 
 			case XKB_KEY_e: return goto_end(state);
-			case XKB_KEY_a: return goto_begining(state);
+			case XKB_KEY_a: return goto_start(state);
 
 			case XKB_KEY_f: return forward_char(state);
 			case XKB_KEY_b: return backward_char(state);
@@ -114,15 +114,16 @@ key_repeat_t type_key(client_state* state, xkb_keysym_t keysym) {
 
 			case XKB_KEY_v: return paste_from_clipboard(state);
 
-			case XKB_KEY_BackSpace:
-			case XKB_KEY_Delete:
-				return clear_input(state);
+			case XKB_KEY_BackSpace: return kill_to_start(state);
+			case XKB_KEY_Delete: return clear_input(state);
 		}
 	}
 	else if (alt) {
 		switch (keysym) {
 			case XKB_KEY_d: return delete_word(state);
-            case XKB_KEY_BackSpace: return delete_word_backward(state);
+			case XKB_KEY_BackSpace: return delete_word_backward(state);
+			case XKB_KEY_f: return forward_word(state);
+			case XKB_KEY_b: return backward_word(state);
 		}
 	}
 	switch (keysym) {
diff --git a/keybind.c b/keybind.c
index 910fd95..1d8cfba 100644
--- a/keybind.c
+++ b/keybind.c
@@ -61,7 +61,7 @@ key_repeat_t goto_end(client_state* state) {
 	return KEY_NO_REPEAT;
 }
 
-key_repeat_t goto_begining(client_state* state) {
+key_repeat_t goto_start(client_state* state) {
 	state->cursor_index = 0;
 	return KEY_NO_REPEAT;
 }
@@ -80,6 +80,48 @@ key_repeat_t backward_char(client_state* state) {
 	return KEY_REPEAT;
 }
 
+key_repeat_t forward_word(client_state* state) {
+	if (state->cursor_index < array_size(state->input_buffer)) {
+		bool hit_white = false;
+		for (; state->cursor_index < array_size(state->input_buffer); state->cursor_index++) {
+			if (state->input_buffer[state->cursor_index] == ' ') {
+				hit_white = true;
+			} else if (hit_white) {
+				break;
+			}
+		}
+	}
+	return KEY_REPEAT;
+}
+
+key_repeat_t backward_word(client_state* state) {
+	if (state->cursor_index > 0) {
+		bool hit_non_white = false;
+		state->cursor_index--;
+		for (; state->cursor_index > 0; state->cursor_index--) {
+			if (state->input_buffer[state->cursor_index] == ' ') {
+				if (hit_non_white) {
+					++state->cursor_index;
+					break;
+				}
+			} else {
+				hit_non_white = true;
+			}
+		}
+	}
+	return KEY_REPEAT;
+}
+
+key_repeat_t kill_to_start(client_state* state) {
+	if (array_size(state->input_buffer) && state->cursor_index) {
+		array_erase_range(state->input_buffer, 0, state->cursor_index - 1);
+		state->cursor_index = 0;
+		update_text_buffer(state);
+	}
+
+	return KEY_NO_REPEAT;
+}
+
 key_repeat_t kill_to_end(client_state* state) {
 	array_resize(state->input_buffer, state->cursor_index);
 	update_text_buffer(state);
diff --git a/keybind.h b/keybind.h
index a56e48a..abf8145 100644
--- a/keybind.h
+++ b/keybind.h
@@ -10,20 +10,26 @@ typedef bool key_repeat_t;
 #define KEY_NO_REPEAT 0
 
 key_repeat_t quit(client_state* state);
-
 key_repeat_t submit_line(client_state* state);
 
-key_repeat_t insert_selected(client_state* state);
-
+// options
 key_repeat_t select_next(client_state* state);
 key_repeat_t select_previous(client_state* state);
+// select first
+// select last
+
+// input
+key_repeat_t insert_selected(client_state* state);
 
 key_repeat_t goto_end(client_state* state);
-key_repeat_t goto_begining(client_state* state);
+key_repeat_t goto_start(client_state* state);
 
 key_repeat_t forward_char(client_state* state);
 key_repeat_t backward_char(client_state* state);
+key_repeat_t forward_word(client_state* state);
+key_repeat_t backward_word(client_state* state);
 
+key_repeat_t kill_to_start(client_state* state);
 key_repeat_t kill_to_end(client_state* state);
 
 key_repeat_t delete_word(client_state* state);