holy SHIFT

src/io/term.c

@@ -66,7 +66,19 @@ static void draw_char(char c, int px, int py, int fg, int bg)
 	}
 }
 
-static void putchar(char c)
+static void erase_char(int px, int py)
+{
+	for (size_t y=0; y<FONT_HEIGHT; y++)
+	{
+		for (size_t x=0; x<8; x++)
+		{
+			// Black
+			putpixel(px+x, py+y, 0);
+		}
+	}
+}
+
+void putchar(char c)
 {
 	if (c == '\n')
 	{
@@ -75,6 +87,17 @@ static void putchar(char c)
 		return;
 	}
 
+	// Improperly handled.
+	// When we're on an empty line it should get to the upper line's last character
+	if (c == '\b')
+	{
+		cursor.x--;
+		int px = cursor.x * FONT_WIDTH;
+		int py = cursor.y * FONT_HEIGHT;
+		erase_char(px, py);
+		return;
+	}
+
 	if ((cursor.x+1)*FONT_WIDTH >= framebuffer->width)
 	{
 		cursor.x = 0;
@@ -87,7 +110,7 @@ static void putchar(char c)
 	cursor.x++;
 }
 
-// Overhead that could be avoided, right?
+// Overhead that could be avoided, right? (for printf)
 void _putchar(char character)
 {
 	putchar(character);

src/io/term.h

@@ -3,6 +3,7 @@
 
 int term_init();
 void kputs(const char* str);
+void putchar(char c);
 
 enum TermColors
 {