first commit

internal/hhkb/palette.go

@@ -0,0 +1,29 @@
+package hhkb
+
+// KeycodeGroup is one labelled section of the keycode palette.
+type KeycodeGroup struct {
+	Name  string
+	Codes []byte
+}
+
+// Palette groups the assignable scancodes for the editor, roughly the way the
+// official tool and QMK present them.
+var Palette = []KeycodeGroup{
+	{"Letters", codeRange(0x04, 0x1d)},
+	{"Numbers", codeRange(0x1e, 0x27)},
+	{"Symbols", []byte{0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38}},
+	{"Editing", []byte{0x29, 0x2a, 0x2b, 0x28, 0x2c, 0x39}},
+	{"Navigation", codeRange(0x49, 0x52)},
+	{"Function", codeRange(0x3a, 0x45)},
+	{"Modifiers", []byte{0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7}},
+	{"Media", []byte{0xe8, 0xe9, 0xea, 0xeb}},
+	{"Special", []byte{0x00, 0x01, 0x46, 0x47, 0x48}},
+}
+
+func codeRange(lo, hi byte) []byte {
+	out := make([]byte, 0, int(hi-lo)+1)
+	for c := lo; c <= hi; c++ {
+		out = append(out, c)
+	}
+	return out
+}