sled

чување 4a42dc33bc72ee4c478982d4fb7dac740ecd719b
родитељ d0715e9fdb7ac6cb70d826d6a8f01fb1798f69e8
Аутор: Страхиња Радић <contact@strahinja.org>
Датум:   Thu, 28 Sep 2023 18:48:42 +0200

Pressing h/Left on the start of line goes to the end of previous line; pressing
l/Right on the end of line goes to the start of next line

Signed-off-by: Страхиња Радић <contact@strahinja.org>

Diffstat:
M
TODO
 | 
8
--------
A
TODO.done
 | 
10
++++++++++
M
sled.c
 | 
23
++++++++++++++++++++---

измењених датотека: 3, додавања: 30(+), брисања: 11(-)
diff --git a/TODO b/TODO
@@ -1,14 +1,6 @@
 TODO
 ====
 
-[ ] Pressing h/Left on the start of line should go to the end of previous line, 
-    similar for l/Right and beginning of next line
-
-</> CLI interface? Example:
-	sled -c '^\G$^\\nSome text at the end^\^L10\ng/text\n' file.txt
-    (wq would be assumed.)
-    - Con: this would overlap with sed(1), with far less actual features.
-
 [~] Code optimization (struct coord...)
 
 
diff --git a/TODO.done b/TODO.done
@@ -0,0 +1,10 @@
+Done or canceled todos
+======================
+
+[x] Pressing h/Left on the start of line should go to the end of previous line, 
+    similar for l/Right and beginning of next line
+
+</> CLI interface? Example:
+	sled -c '^\G$^\\nSome text at the end^\^L10\ng/text\n' file.txt
+    (wq would be assumed.)
+    - Con: this would overlap with sed(1), with far less actual features.
diff --git a/sled.c b/sled.c
@@ -706,11 +706,28 @@ position_to(struct DrawState* state, const int row, const int column)
 	{
 		state->coord.col = column;
 		if (state->coord.col < 0)
-			state->coord.col = 0;
+		{
+			if (state->coord.row > 0)
+			{
+				state->coord.row--;
+				state->coord.col
+					= state->buffer[state->coord.row].length;
+			}
+			else
+				state->coord.col = 0;
+		}
 		else if (state->coord.col
 			> (int)state->buffer[state->coord.row].length)
-			state->coord.col
-				= state->buffer[state->coord.row].length;
+		{
+			if (state->coord.row + 1 < state->rows_count)
+			{
+				state->coord.row++;
+				state->coord.col = 0;
+			}
+			else
+				state->coord.col
+					= state->buffer[state->coord.row].length;
+		}
 		state->display_column = display_length(state,
 			state->buffer[state->coord.row].text, state->coord.col);
 		state->saved_column   = state->display_column;