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-rw-r--r--src/ctype/casemap.h290
-rw-r--r--src/ctype/towctrans.c345
2 files changed, 345 insertions, 290 deletions
diff --git a/src/ctype/casemap.h b/src/ctype/casemap.h
new file mode 100644
index 00000000..e4f759af
--- /dev/null
+++ b/src/ctype/casemap.h
@@ -0,0 +1,290 @@
+static const unsigned char tab[] = {
+	7, 8, 9, 10, 11, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	13, 6, 6, 14, 6, 6, 6, 6, 6, 6, 6, 6, 15, 16, 17, 18,
+	6, 19, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 20, 21, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 22, 23, 6, 6, 6, 24, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 25,
+	6, 6, 6, 6, 26, 6, 6, 6, 6, 6, 6, 6, 27, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 28, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 29, 6, 6, 6, 6, 6, 6,
+	6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 36,
+	43, 43, 43, 43, 43, 43, 43, 43, 1, 0, 84, 86, 86, 86, 86, 86,
+	86, 86, 86, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 24, 0, 0, 0, 43, 43, 43, 43, 43, 43,
+	43, 7, 43, 43, 91, 86, 86, 86, 86, 86, 86, 86, 74, 86, 86, 5,
+	49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80,
+	36, 80, 121, 49, 80, 49, 80, 49, 56, 80, 49, 80, 49, 80, 49, 80,
+	49, 80, 49, 80, 49, 80, 49, 80, 78, 49, 2, 78, 13, 13, 78, 3,
+	78, 0, 36, 110, 0, 78, 49, 38, 110, 81, 78, 36, 80, 78, 57, 20,
+	129, 27, 29, 29, 83, 49, 80, 49, 80, 13, 49, 80, 49, 80, 49, 80,
+	27, 83, 36, 80, 49, 2, 92, 123, 92, 123, 92, 123, 92, 123, 92, 123,
+	20, 121, 92, 123, 92, 123, 92, 45, 43, 73, 3, 72, 3, 120, 92, 123,
+	20, 0, 150, 10, 1, 43, 40, 6, 6, 0, 42, 6, 42, 42, 43, 7,
+	187, 187, 43, 30, 0, 43, 7, 43, 43, 43, 1, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 1, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 205, 70, 205, 43, 0, 37, 43, 7, 1, 6, 1, 85, 86, 86, 86,
+	86, 86, 85, 86, 86, 2, 36, 129, 129, 129, 129, 129, 21, 129, 129, 129,
+	0, 0, 43, 0, 178, 209, 178, 209, 178, 209, 178, 209, 0, 0, 205, 204,
+	1, 0, 215, 215, 215, 215, 215, 131, 129, 129, 129, 129, 129, 129, 129, 129,
+	129, 129, 172, 172, 172, 172, 172, 172, 172, 172, 172, 172, 28, 0, 0, 0,
+	0, 0, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 2, 0, 0,
+	49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80,
+	49, 80, 78, 49, 80, 49, 80, 78, 49, 80, 49, 80, 49, 80, 49, 80,
+	49, 80, 49, 80, 49, 80, 49, 2, 135, 166, 135, 166, 135, 166, 135, 166,
+	135, 166, 135, 166, 135, 166, 135, 166, 42, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 0, 0, 0, 84, 86, 86, 86, 86, 86, 86, 86,
+	86, 86, 86, 86, 86, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	6, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 42, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 86, 86, 108, 129, 21, 0, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 7, 72, 182, 58, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 1,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 6, 72, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37,
+	6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37,
+	6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37,
+	6, 37, 6, 37, 6, 37, 6, 37, 86, 122, 158, 38, 6, 37, 6, 37,
+	6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 37,
+	6, 37, 6, 37, 6, 37, 6, 37, 6, 37, 6, 1, 43, 43, 79, 86,
+	86, 44, 43, 127, 86, 86, 57, 43, 43, 85, 86, 86, 43, 43, 79, 86,
+	86, 44, 43, 127, 86, 86, 129, 55, 117, 91, 123, 92, 43, 43, 79, 86,
+	86, 2, 172, 4, 0, 0, 57, 43, 43, 85, 86, 86, 43, 43, 79, 86,
+	86, 44, 43, 43, 86, 86, 50, 19, 129, 87, 0, 111, 129, 126, 201, 215,
+	126, 45, 129, 129, 14, 126, 57, 127, 111, 87, 0, 129, 129, 126, 21, 0,
+	126, 3, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 7, 43,
+	36, 43, 151, 43, 43, 43, 43, 43, 43, 43, 43, 43, 42, 43, 43, 43,
+	43, 43, 86, 86, 86, 86, 86, 128, 129, 129, 129, 129, 57, 187, 42, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 1, 129, 129, 129, 129, 129, 129, 129, 129,
+	129, 129, 129, 129, 129, 129, 129, 201, 172, 172, 172, 172, 172, 172, 172, 172,
+	172, 172, 172, 172, 172, 172, 172, 208, 13, 0, 78, 49, 2, 180, 193, 193,
+	215, 215, 36, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80,
+	49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80, 49, 80,
+	49, 80, 49, 80, 215, 215, 83, 193, 71, 212, 215, 215, 215, 5, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 7, 1, 0, 1, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 78, 49, 80, 49, 80, 49, 80,
+	49, 80, 49, 80, 49, 80, 49, 80, 13, 0, 0, 0, 0, 0, 36, 80,
+	49, 80, 49, 80, 49, 80, 49, 80, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 121, 92, 123, 92, 123, 79, 123, 92, 123, 92, 123,
+	92, 123, 92, 123, 92, 123, 92, 123, 92, 123, 92, 123, 92, 123, 92, 45,
+	43, 43, 121, 20, 92, 123, 92, 45, 121, 42, 92, 45, 92, 123, 92, 123,
+	92, 123, 164, 0, 10, 180, 92, 45, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 1,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 72, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 43, 43, 43, 43, 43, 43, 43, 43, 7, 0, 72, 86, 86, 86, 86,
+	86, 86, 86, 86, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 43, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 85, 86, 86, 86, 86, 86, 86,
+	86, 86, 86, 86, 86, 86, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 36, 43, 43, 43, 43, 43, 43, 43, 43, 43,
+	43, 43, 7, 0, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 36, 43, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 7, 0, 0,
+	0, 0, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86,
+	86, 86, 86, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 42, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 86, 86, 86, 86, 86, 86, 86, 86,
+	86, 86, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 43, 43,
+	43, 43, 43, 43, 43, 43, 43, 43, 43, 85, 86, 86, 86, 86, 86, 86,
+	86, 86, 86, 86, 14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0,
+};
+static const int rules[] = {
+	0x0, 0x2001, -0x2000, 0x1dbf00, 0x2e700, 0x7900,
+	0x2402, 0x101, -0x100, 0x0, 0x201, -0x200,
+	-0xc6ff, -0xe800, -0x78ff, -0x12c00, 0xc300, 0xd201,
+	0xce01, 0xcd01, 0x4f01, 0xca01, 0xcb01, 0xcf01,
+	0x6100, 0xd301, 0xd101, 0xa300, 0xd501, 0x8200,
+	0xd601, 0xda01, 0xd901, 0xdb01, 0x3800, 0x3,
+	-0x4f00, -0x60ff, -0x37ff, 0x242702, 0x0, 0x101,
+	-0x100, -0xcd00, -0xda00, -0x81ff, 0x2a2b01, -0xa2ff,
+	0x2a2801, 0x2a3f00, -0xc2ff, 0x4501, 0x4701, 0x2a1f00,
+	0x2a1c00, 0x2a1e00, -0xd200, -0xce00, -0xca00, -0xcb00,
+	0xa54f00, 0xa54b00, -0xcf00, 0xa52800, 0xa54400, -0xd100,
+	-0xd300, 0x29f700, 0xa54100, 0x29fd00, -0xd500, -0xd600,
+	0x29e700, 0xa52a00, -0x4500, -0xd900, -0x4700, -0xdb00,
+	0xa51500, 0xa51200, 0x4b2402, 0x0, 0x2001, -0x2000,
+	0x101, -0x100, 0x5400, 0x7401, 0x2601, 0x2501,
+	0x4001, 0x3f01, -0x2600, -0x2500, -0x1f00, -0x4000,
+	-0x3f00, 0x801, -0x3e00, -0x3900, -0x2f00, -0x3600,
+	-0x800, -0x5600, -0x5000, 0x700, -0x7400, -0x3bff,
+	-0x6000, -0x6ff, 0x6f1a02, 0x101, -0x100, 0x2001,
+	-0x2000, 0x5001, 0xf01, -0xf00, 0x0, 0x3001,
+	-0x3000, 0x101, -0x100, 0x0, 0x1c6001, 0x0,
+	0x97d001, 0x801, -0x800, 0x890402, 0x0, -0x186200,
+	0x89c200, -0x182500, -0x185c00, -0x186e00, -0x186d00, -0x186400,
+	-0x186300, 0x0, 0x8a0400, 0xee600, 0x101, -0x100,
+	0x0, -0x3b00, -0x1dbeff, 0x8d1d02, 0x800, -0x7ff,
+	0x0, 0x5600, -0x55ff, 0x4a00, 0x6400, 0x8000,
+	0x7000, 0x7e00, 0x900, -0x49ff, -0x8ff, -0x1c2500,
+	-0x63ff, -0x6fff, -0x7fff, -0x7dff, 0xaa0502, 0x0,
+	0x1001, -0x1000, 0x1c01, 0x101, -0x1d5cff, -0x20beff,
+	-0x2045ff, -0x1c00, 0xaf0b02, 0x101, -0x100, 0x3001,
+	-0x3000, 0x0, -0x29f6ff, -0xee5ff, -0x29e6ff, -0x2a2b00,
+	-0x2a2800, -0x2a1bff, -0x29fcff, -0x2a1eff, -0x2a1dff, -0x2a3eff,
+	0x0, -0x1c6000, 0x0, 0x101, -0x100, 0xba0802,
+	0x0, 0x101, -0x100, -0xa543ff, 0x3a001, -0x8a03ff,
+	-0xa527ff, -0xa54eff, -0xa54aff, -0xa540ff, -0xa511ff, -0xa529ff,
+	-0xa514ff, 0x0, -0x97d000, -0x3a000, 0x0, 0x2001,
+	-0x2000, 0x0, 0x2801, -0x2800, 0x0, 0x4001,
+	-0x4000, 0x0, 0x2001, -0x2000, 0x0, 0x2201,
+	-0x2200,
+};
+static const unsigned char rulebases[] = {
+	0, 6, 39, 80, 110, 118, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	123, 0, 0, 125, 0, 0, 0, 0, 0, 0, 0, 0, 129, 139, 142, 147,
+	0, 166, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 176, 192, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 194, 197, 0, 0, 0, 211, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 214,
+	0, 0, 0, 0, 217, 0, 0, 0, 0, 0, 0, 0, 220, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 223, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 226, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+static const unsigned char exceptions[][2] = {
+	{ 48, 12 }, { 49, 13 }, { 120, 14 }, { 127, 15 },
+	{ 128, 16 }, { 129, 17 }, { 134, 18 }, { 137, 19 },
+	{ 138, 19 }, { 142, 20 }, { 143, 21 }, { 144, 22 },
+	{ 147, 19 }, { 148, 23 }, { 149, 24 }, { 150, 25 },
+	{ 151, 26 }, { 154, 27 }, { 156, 25 }, { 157, 28 },
+	{ 158, 29 }, { 159, 30 }, { 166, 31 }, { 169, 31 },
+	{ 174, 31 }, { 177, 32 }, { 178, 32 }, { 183, 33 },
+	{ 191, 34 }, { 197, 35 }, { 200, 35 }, { 203, 35 },
+	{ 221, 36 }, { 242, 35 }, { 246, 37 }, { 247, 38 },
+	{ 32, 45 }, { 58, 46 }, { 61, 47 }, { 62, 48 },
+	{ 63, 49 }, { 64, 49 }, { 67, 50 }, { 68, 51 },
+	{ 69, 52 }, { 80, 53 }, { 81, 54 }, { 82, 55 },
+	{ 83, 56 }, { 84, 57 }, { 89, 58 }, { 91, 59 },
+	{ 92, 60 }, { 97, 61 }, { 99, 62 }, { 101, 63 },
+	{ 102, 64 }, { 104, 65 }, { 105, 66 }, { 106, 64 },
+	{ 107, 67 }, { 108, 68 }, { 111, 66 }, { 113, 69 },
+	{ 114, 70 }, { 117, 71 }, { 125, 72 }, { 135, 73 },
+	{ 137, 74 }, { 138, 75 }, { 139, 75 }, { 140, 76 },
+	{ 146, 77 }, { 157, 78 }, { 158, 79 }, { 69, 86 },
+	{ 123, 29 }, { 124, 29 }, { 125, 29 }, { 127, 87 },
+	{ 134, 88 }, { 136, 89 }, { 137, 89 }, { 138, 89 },
+	{ 140, 90 }, { 142, 91 }, { 143, 91 }, { 172, 92 },
+	{ 173, 93 }, { 174, 93 }, { 175, 93 }, { 194, 94 },
+	{ 204, 95 }, { 205, 96 }, { 206, 96 }, { 207, 97 },
+	{ 208, 98 }, { 209, 99 }, { 213, 100 }, { 214, 101 },
+	{ 215, 102 }, { 240, 103 }, { 241, 104 }, { 242, 105 },
+	{ 243, 106 }, { 244, 107 }, { 245, 108 }, { 249, 109 },
+	{ 253, 45 }, { 254, 45 }, { 255, 45 }, { 80, 104 },
+	{ 81, 104 }, { 82, 104 }, { 83, 104 }, { 84, 104 },
+	{ 85, 104 }, { 86, 104 }, { 87, 104 }, { 88, 104 },
+	{ 89, 104 }, { 90, 104 }, { 91, 104 }, { 92, 104 },
+	{ 93, 104 }, { 94, 104 }, { 95, 104 }, { 130, 0 },
+	{ 131, 0 }, { 132, 0 }, { 133, 0 }, { 134, 0 },
+	{ 135, 0 }, { 136, 0 }, { 137, 0 }, { 192, 116 },
+	{ 207, 117 }, { 128, 135 }, { 129, 136 }, { 130, 137 },
+	{ 133, 138 }, { 112, 153 }, { 113, 153 }, { 118, 154 },
+	{ 119, 154 }, { 120, 155 }, { 121, 155 }, { 122, 156 },
+	{ 123, 156 }, { 124, 157 }, { 125, 157 }, { 179, 158 },
+	{ 186, 159 }, { 187, 159 }, { 188, 160 }, { 190, 161 },
+	{ 195, 158 }, { 204, 160 }, { 218, 162 }, { 219, 162 },
+	{ 229, 105 }, { 234, 163 }, { 235, 163 }, { 236, 109 },
+	{ 243, 158 }, { 248, 164 }, { 249, 164 }, { 250, 165 },
+	{ 251, 165 }, { 252, 160 }, { 38, 172 }, { 42, 173 },
+	{ 43, 174 }, { 78, 175 }, { 132, 8 }, { 98, 182 },
+	{ 99, 183 }, { 100, 184 }, { 101, 185 }, { 102, 186 },
+	{ 109, 187 }, { 110, 188 }, { 111, 189 }, { 112, 190 },
+	{ 126, 191 }, { 127, 191 }, { 125, 203 }, { 141, 204 },
+	{ 171, 205 }, { 172, 206 }, { 173, 207 }, { 176, 208 },
+	{ 177, 209 }, { 178, 210 },
+};
diff --git a/src/ctype/towctrans.c b/src/ctype/towctrans.c
index 9b91b2de..76d13769 100644
--- a/src/ctype/towctrans.c
+++ b/src/ctype/towctrans.c
@@ -1,308 +1,73 @@
-#include <ctype.h>
-#include <stddef.h>
 #include <wctype.h>
 
-#define CASEMAP(u1,u2,l) { (u1), (l)-(u1), (u2)-(u1)+1 }
-#define CASELACE(u1,u2) CASEMAP((u1),(u2),(u1)+1)
+static const unsigned char tab[];
 
-static const struct {
-	unsigned short upper;
-	signed char lower;
-	unsigned char len;
-} casemaps[] = {
-	CASEMAP(0xc0,0xde,0xe0),
+static const unsigned char rulebases[512];
+static const int rules[];
 
-	CASELACE(0x0100,0x012e),
-	CASELACE(0x0132,0x0136),
-	CASELACE(0x0139,0x0147),
-	CASELACE(0x014a,0x0176),
-	CASELACE(0x0179,0x017d),
+static const unsigned char exceptions[][2];
 
-	CASELACE(0x370,0x372),
-	CASEMAP(0x391,0x3a1,0x3b1),
-	CASEMAP(0x3a3,0x3ab,0x3c3),
-	CASEMAP(0x400,0x40f,0x450),
-	CASEMAP(0x410,0x42f,0x430),
+#include "casemap.h"
 
-	CASELACE(0x460,0x480),
-	CASELACE(0x48a,0x4be),
-	CASELACE(0x4c1,0x4cd),
-	CASELACE(0x4d0,0x50e),
-
-	CASELACE(0x514,0x52e),
-	CASEMAP(0x531,0x556,0x561),
-
-	CASELACE(0x01a0,0x01a4),
-	CASELACE(0x01b3,0x01b5),
-	CASELACE(0x01cd,0x01db),
-	CASELACE(0x01de,0x01ee),
-	CASELACE(0x01f8,0x021e),
-	CASELACE(0x0222,0x0232),
-	CASELACE(0x03d8,0x03ee),
-
-	CASELACE(0x1e00,0x1e94),
-	CASELACE(0x1ea0,0x1efe),
-
-	CASEMAP(0x1f08,0x1f0f,0x1f00),
-	CASEMAP(0x1f18,0x1f1d,0x1f10),
-	CASEMAP(0x1f28,0x1f2f,0x1f20),
-	CASEMAP(0x1f38,0x1f3f,0x1f30),
-	CASEMAP(0x1f48,0x1f4d,0x1f40),
-
-	CASEMAP(0x1f68,0x1f6f,0x1f60),
-	CASEMAP(0x1f88,0x1f8f,0x1f80),
-	CASEMAP(0x1f98,0x1f9f,0x1f90),
-	CASEMAP(0x1fa8,0x1faf,0x1fa0),
-	CASEMAP(0x1fb8,0x1fb9,0x1fb0),
-	CASEMAP(0x1fba,0x1fbb,0x1f70),
-	CASEMAP(0x1fc8,0x1fcb,0x1f72),
-	CASEMAP(0x1fd8,0x1fd9,0x1fd0),
-	CASEMAP(0x1fda,0x1fdb,0x1f76),
-	CASEMAP(0x1fe8,0x1fe9,0x1fe0),
-	CASEMAP(0x1fea,0x1feb,0x1f7a),
-	CASEMAP(0x1ff8,0x1ff9,0x1f78),
-	CASEMAP(0x1ffa,0x1ffb,0x1f7c),
-
-	CASEMAP(0x13f0,0x13f5,0x13f8),
-	CASELACE(0xa698,0xa69a),
-	CASELACE(0xa796,0xa79e),
-
-	CASELACE(0x246,0x24e),
-	CASELACE(0x510,0x512),
-	CASEMAP(0x2160,0x216f,0x2170),
-	CASEMAP(0x2c00,0x2c2e,0x2c30),
-	CASELACE(0x2c67,0x2c6b),
-	CASELACE(0x2c80,0x2ce2),
-	CASELACE(0x2ceb,0x2ced),
-
-	CASELACE(0xa640,0xa66c),
-	CASELACE(0xa680,0xa696),
-
-	CASELACE(0xa722,0xa72e),
-	CASELACE(0xa732,0xa76e),
-	CASELACE(0xa779,0xa77b),
-	CASELACE(0xa77e,0xa786),
-
-	CASELACE(0xa790,0xa792),
-	CASELACE(0xa7a0,0xa7a8),
-
-	CASELACE(0xa7b4,0xa7b6),
-
-	CASEMAP(0xff21,0xff3a,0xff41),
-	{ 0,0,0 }
-};
-
-static const unsigned short pairs[][2] = {
-	{ 'I',    0x0131 },
-	{ 'S',    0x017f },
-	{ 0x0130, 'i'    },
-	{ 0x0178, 0x00ff },
-	{ 0x0181, 0x0253 },
-	{ 0x0182, 0x0183 },
-	{ 0x0184, 0x0185 },
-	{ 0x0186, 0x0254 },
-	{ 0x0187, 0x0188 },
-	{ 0x0189, 0x0256 },
-	{ 0x018a, 0x0257 },
-	{ 0x018b, 0x018c },
-	{ 0x018e, 0x01dd },
-	{ 0x018f, 0x0259 },
-	{ 0x0190, 0x025b },
-	{ 0x0191, 0x0192 },
-	{ 0x0193, 0x0260 },
-	{ 0x0194, 0x0263 },
-	{ 0x0196, 0x0269 },
-	{ 0x0197, 0x0268 },
-	{ 0x0198, 0x0199 },
-	{ 0x019c, 0x026f },
-	{ 0x019d, 0x0272 },
-	{ 0x019f, 0x0275 },
-	{ 0x01a6, 0x0280 },
-	{ 0x01a7, 0x01a8 },
-	{ 0x01a9, 0x0283 },
-	{ 0x01ac, 0x01ad },
-	{ 0x01ae, 0x0288 },
-	{ 0x01af, 0x01b0 },
-	{ 0x01b1, 0x028a },
-	{ 0x01b2, 0x028b },
-	{ 0x01b7, 0x0292 },
-	{ 0x01b8, 0x01b9 },
-	{ 0x01bc, 0x01bd },
-	{ 0x01c4, 0x01c6 },
-	{ 0x01c4, 0x01c5 },
-	{ 0x01c5, 0x01c6 },
-	{ 0x01c7, 0x01c9 },
-	{ 0x01c7, 0x01c8 },
-	{ 0x01c8, 0x01c9 },
-	{ 0x01ca, 0x01cc },
-	{ 0x01ca, 0x01cb },
-	{ 0x01cb, 0x01cc },
-	{ 0x01f1, 0x01f3 },
-	{ 0x01f1, 0x01f2 },
-	{ 0x01f2, 0x01f3 },
-	{ 0x01f4, 0x01f5 },
-	{ 0x01f6, 0x0195 },
-	{ 0x01f7, 0x01bf },
-	{ 0x0220, 0x019e },
-	{ 0x0386, 0x03ac },
-	{ 0x0388, 0x03ad },
-	{ 0x0389, 0x03ae },
-	{ 0x038a, 0x03af },
-	{ 0x038c, 0x03cc },
-	{ 0x038e, 0x03cd },
-	{ 0x038f, 0x03ce },
-	{ 0x0399, 0x0345 },
-	{ 0x0399, 0x1fbe },
-	{ 0x03a3, 0x03c2 },
-	{ 0x03f7, 0x03f8 },
-	{ 0x03fa, 0x03fb },
-	{ 0x1e60, 0x1e9b },
-	{ 0x1e9e, 0xdf },
-
-	{ 0x1f59, 0x1f51 },
-	{ 0x1f5b, 0x1f53 },
-	{ 0x1f5d, 0x1f55 },
-	{ 0x1f5f, 0x1f57 },
-	{ 0x1fbc, 0x1fb3 },
-	{ 0x1fcc, 0x1fc3 },
-	{ 0x1fec, 0x1fe5 },
-	{ 0x1ffc, 0x1ff3 },
-
-	{ 0x23a, 0x2c65 },
-	{ 0x23b, 0x23c },
-	{ 0x23d, 0x19a },
-	{ 0x23e, 0x2c66 },
-	{ 0x241, 0x242 },
-	{ 0x243, 0x180 },
-	{ 0x244, 0x289 },
-	{ 0x245, 0x28c },
-	{ 0x37f, 0x3f3 },
-	{ 0x3f4, 0x3b8 },
-	{ 0x3f9, 0x3f2 },
-	{ 0x3fd, 0x37b },
-	{ 0x3fe, 0x37c },
-	{ 0x3ff, 0x37d },
-	{ 0x4c0, 0x4cf },
-
-	{ 0x2126, 0x3c9 },
-	{ 0x212a, 'k' },
-	{ 0x212b, 0xe5 },
-	{ 0x2132, 0x214e },
-	{ 0x2183, 0x2184 },
-	{ 0x2c60, 0x2c61 },
-	{ 0x2c62, 0x26b },
-	{ 0x2c63, 0x1d7d },
-	{ 0x2c64, 0x27d },
-	{ 0x2c6d, 0x251 },
-	{ 0x2c6e, 0x271 },
-	{ 0x2c6f, 0x250 },
-	{ 0x2c70, 0x252 },
-	{ 0x2c72, 0x2c73 },
-	{ 0x2c75, 0x2c76 },
-	{ 0x2c7e, 0x23f },
-	{ 0x2c7f, 0x240 },
-	{ 0x2cf2, 0x2cf3 },
-
-	{ 0xa77d, 0x1d79 },
-	{ 0xa78b, 0xa78c },
-	{ 0xa78d, 0x265 },
-	{ 0xa7aa, 0x266 },
-
-	{ 0x10c7, 0x2d27 },
-	{ 0x10cd, 0x2d2d },
-
-	/* bogus greek 'symbol' letters */
-	{ 0x376, 0x377 },
-	{ 0x39c, 0xb5 },
-	{ 0x392, 0x3d0 },
-	{ 0x398, 0x3d1 },
-	{ 0x3a6, 0x3d5 },
-	{ 0x3a0, 0x3d6 },
-	{ 0x39a, 0x3f0 },
-	{ 0x3a1, 0x3f1 },
-	{ 0x395, 0x3f5 },
-	{ 0x3cf, 0x3d7 },
-
-	{ 0xa7ab, 0x25c },
-	{ 0xa7ac, 0x261 },
-	{ 0xa7ad, 0x26c },
-	{ 0xa7ae, 0x26a },
-	{ 0xa7b0, 0x29e },
-	{ 0xa7b1, 0x287 },
-	{ 0xa7b2, 0x29d },
-	{ 0xa7b3, 0xab53 },
-
-	/* special cyrillic lowercase forms */
-	{ 0x412, 0x1c80 },
-	{ 0x414, 0x1c81 },
-	{ 0x41e, 0x1c82 },
-	{ 0x421, 0x1c83 },
-	{ 0x422, 0x1c84 },
-	{ 0x422, 0x1c85 },
-	{ 0x42a, 0x1c86 },
-	{ 0x462, 0x1c87 },
-	{ 0xa64a, 0x1c88 },
-
-	{ 0,0 }
-};
-
-
-static wchar_t __towcase(wchar_t wc, int lower)
+static int casemap(unsigned c, int dir)
 {
-	int i;
-	int lmul = 2*lower-1;
-	int lmask = lower-1;
-	/* no letters with case in these large ranges */
-	if (!iswalpha(wc)
-	 || (unsigned)wc - 0x0600 <= 0x0fff-0x0600
-	 || (unsigned)wc - 0x2e00 <= 0xa63f-0x2e00
-	 || (unsigned)wc - 0xa800 <= 0xab52-0xa800
-	 || (unsigned)wc - 0xabc0 <= 0xfeff-0xabc0)
-		return wc;
-	/* special case because the diff between upper/lower is too big */
-	if (lower && (unsigned)wc - 0x10a0 < 0x2e)
-		if (wc>0x10c5 && wc != 0x10c7 && wc != 0x10cd) return wc;
-		else return wc + 0x2d00 - 0x10a0;
-	if (!lower && (unsigned)wc - 0x2d00 < 0x26)
-		if (wc>0x2d25 && wc != 0x2d27 && wc != 0x2d2d) return wc;
-		else return wc + 0x10a0 - 0x2d00;
-	if (lower && (unsigned)wc - 0x13a0 < 0x50)
-		return wc + 0xab70 - 0x13a0;
-	if (!lower && (unsigned)wc - 0xab70 < 0x50)
-		return wc + 0x13a0 - 0xab70;
-	for (i=0; casemaps[i].len; i++) {
-		int base = casemaps[i].upper + (lmask & casemaps[i].lower);
-		if ((unsigned)wc-base < casemaps[i].len) {
-			if (casemaps[i].lower == 1)
-				return wc + lower - ((wc-casemaps[i].upper)&1);
-			return wc + lmul*casemaps[i].lower;
+	unsigned b, x, y, v, rt, xb, xn;
+	int r, rd, c0 = c;
+
+	if (c >= 0x20000) return c;
+
+	b = c>>8;
+	c &= 255;
+	x = c/3;
+	y = c%3;
+
+	/* lookup entry in two-level base-6 table */
+	v = tab[tab[b]*86+x];
+	static const int mt[] = { 2048, 342, 57 };
+	v = (v*mt[y]>>11)%6;
+
+	/* use the bit vector out of the tables as an index into
+	 * a block-specific set of rules and decode the rule into
+	 * a type and a case-mapping delta. */
+	r = rules[rulebases[b]+v];
+	rt = r & 255;
+	rd = r >> 8;
+
+	/* rules 0/1 are simple lower/upper case with a delta.
+	 * apply according to desired mapping direction. */
+	if (rt < 2) return c0 + (rd & -(rt^dir));
+
+	/* binary search. endpoints of the binary search for
+	 * this block are stored in the rule delta field. */
+	xn = rd & 0xff;
+	xb = (unsigned)rd >> 8;
+	while (xn) {
+		unsigned try = exceptions[xb+xn/2][0];
+		if (try == c) {
+			r = rules[exceptions[xb+xn/2][1]];
+			rt = r & 255;
+			rd = r >> 8;
+			if (rt < 2) return c0 + (rd & -(rt^dir));
+			/* Hard-coded for the four exceptional titlecase */
+			return c0 + (dir ? -1 : 1);
+		} else if (try > c) {
+			xn /= 2;
+		} else {
+			xb += xn/2;
+			xn -= xn/2;
 		}
 	}
-	for (i=0; pairs[i][1-lower]; i++) {
-		if (pairs[i][1-lower] == wc)
-			return pairs[i][lower];
-	}
-	if ((unsigned)wc - (0x10428 - 0x28*lower) < 0x28)
-		return wc - 0x28 + 0x50*lower;
-	if ((unsigned)wc - (0x104d8 - 0x28*lower) < 0x24)
-		return wc - 0x28 + 0x50*lower;
-	if ((unsigned)wc - (0x10cc0 - 0x40*lower) < 0x33)
-		return wc - 0x40 + 0x80*lower;
-	if ((unsigned)wc - (0x118c0 - 0x20*lower) < 0x20)
-		return wc - 0x20 + 0x40*lower;
-	if ((unsigned)wc - (0x1e922 - 0x22*lower) < 0x22)
-		return wc - 0x22 + 0x44*lower;
-	return wc;
+	return c0;
 }
 
-wint_t towupper(wint_t wc)
+wint_t towlower(wint_t wc)
 {
-	return (unsigned)wc < 128 ? toupper(wc) : __towcase(wc, 0);
+	return casemap(wc, 0);
 }
 
-wint_t towlower(wint_t wc)
+wint_t towupper(wint_t wc)
 {
-	return (unsigned)wc < 128 ? tolower(wc) : __towcase(wc, 1);
+	return casemap(wc, 1);
 }
 
 wint_t __towupper_l(wint_t c, locale_t l)