Fix keymap generator, drop prototype keymap

keymaps/factory-keymap-megi.txt

@@ -1,63 +0,0 @@
-# physical layout Row:Col -> KEY COMBO_KEY1 COMBO_KEY2
-# combo1 is using FN key, combo2 is using PINE key
-# see factory-keymap.jpg
-# https://elixir.bootlin.com/linux/latest/source/include/uapi/linux/input-event-codes.h#L76
-
-1:1  ESC
-1:2  1 LEFTSHIFT+BACKSLASH F1
-1:3  2 BACKSLASH F2
-1:4  3 DOLLAR F3    # pound, really, but who uses that? also it doesn't have a keycode in Linux
-1:5  4 EURO F4
-1:6  5 LEFTSHIFT+GRAVE F5
-1:7  6 GRAVE F6
-1:8  7 MINUS F7
-1:9  8 EQUAL F8
-1:10 9 LEFTSHIFT+MINUS F9
-1:11 0 PLUS F10
-1:12 BACKSPACE DELETE
-
-2:1  TAB
-2:2  Q
-2:3  W
-2:4  E
-2:5  R
-2:6  T
-2:7  Y Z
-2:8  U
-2:9  I
-2:10 O
-2:11 P
-2:12 ENTER
-
-3:1  LEFTMETA LEFTSHIFT+SYSRQ    # LEFTMETA = PINE key
-3:2  A
-3:3  S
-3:4  D
-3:5  F
-3:6  G
-3:7  H
-3:8  J
-3:9  K
-3:10 L
-3:11 SEMICOLON INSERT
-
-4:1  LEFTSHIFT
-4:2  Z
-4:3  X
-4:4  C LEFTCTRL
-4:5  V
-4:6  B
-4:7  N
-4:8  M
-4:9  COMMA HOME
-4:10 DOT UP
-4:11 SLASH END
-
-5:1  LEFTCTRL
-5:2  FN
-5:3  LEFTALT
-5:4  SPACE
-5:5  RIGHTALT
-5:6  APOSTROPHE LEFT
-5:7  LEFTBRACE DOWN
-5:8  RIGHTBRACE RIGHT

keymaps/factory-keymap.txt

@@ -13,7 +13,7 @@
 1:8  7 MINUS F7
 1:9  8 EQUAL F8
 1:10 9 LEFTSHIFT+MINUS F9
-1:11 0 PLUS F10
+1:11 0 KPPLUS F10
 1:12 BACKSPACE DELETE
 
 2:1  TAB

keymaps/map-to-c.php

@@ -57,7 +57,7 @@ foreach (explode("\n", $kmap) as $ln) {
 		
 		for ($i = 0; $i < 3; $i++) {
 			$alt = $alts[$i] ?? null;
-			if (!$alt)
+			if ($alt === null)
 				break;
 
 			$keys = preg_split('#\+#', $alt, -1, PREG_SPLIT_NO_EMPTY);