WL#3090 Japanese Character Set adjustments

added:
  @ mysql-test/include/ctype_utf8_table.inc
    Adding a share file to populate all utf8 values [U+0000..U+FFFF]
modified:
  @ include/m_ctype.h
    Introducing MB2 and MY_PUT_MB2 macros

  @ mysql-test/r/ctype_cp932_binlog_stm.result
  @ mysql-test/r/ctype_eucjpms.result
  @ mysql-test/r/ctype_sjis.result
  @ mysql-test/r/ctype_ujis.result
  @ mysql-test/t/ctype_cp932_binlog_stm.test
  @ mysql-test/t/ctype_eucjpms.test
  @ mysql-test/t/ctype_sjis.test
  @ mysql-test/t/ctype_ujis.test
    Adding test

  @ strings/ctype-cp932.c
  @ strings/ctype-eucjpms.c
  @ strings/ctype-sjis.c
  @ strings/ctype-ujis.c
    Adding new functions using Big-Table approach.

Author: Alexander Barkov

include/m_ctype.h

@@ -38,6 +38,23 @@ extern "C" {
 
 #define my_wc_t ulong
 
+
+/*
+  On i386 we store Unicode->CS conversion tables for
+  some character sets using Big-endian order,
+  to copy two bytes at onces.
+  This gives some performance improvement.
+*/
+#ifdef __i386__
+#define MB2(x)                (((x) >> 8) + (((x) & 0xFF) << 8))
+#define MY_PUT_MB2(s, code)   { *((uint16*)(s))= (code); }
+#else
+#define MB2(x)                (x)
+#define MY_PUT_MB2(s, code)   { s[0]= code >> 8; s[1]= code & 0xFF; }
+#endif
+
+
+
 typedef struct unicase_info_st
 {
   uint32 toupper;

mysql-test/include/ctype_utf8_table.inc

@@ -0,0 +1,44 @@
+CREATE TABLE t1 (a CHAR(1)) CHARACTER SET utf8;
+INSERT INTO t1 VALUES ('0'),('1'),('2'),('3'),('4'),('5'),('6'),('7');
+INSERT INTO t1 VALUES ('8'),('9'),('A'),('B'),('C'),('D'),('E'),('F');
+#
+# Populate tables head and tail with values '00'-'FF'
+#
+CREATE TEMPORARY TABLE head   AS SELECT concat(b1.a, b2.a) AS head   FROM t1 b1, t1 b2;
+CREATE TEMPORARY TABLE tail   AS SELECT concat(b1.a, b2.a) AS tail   FROM t1 b1, t1 b2;
+CREATE TEMPORARY TABLE middle AS SELECT concat(b1.a, b2.a) AS middle FROM t1 b1, t1 b2;
+DROP TABLE t1;
+
+CREATE TABLE t1 (a varchar(1)) CHARACTER SET utf8;
+
+#
+# Populate single byte characters
+#
+
+INSERT INTO t1 SELECT UNHEX(head)
+FROM head WHERE (head BETWEEN '00' AND '7F') ORDER BY head;
+
+#
+# Populate 2-byte byte characters: U+80..U+7FF:  [C2-DF][80-BF]
+#
+INSERT INTO t1
+SELECT UNHEX(CONCAT(head,tail))
+FROM head, tail
+WHERE (head BETWEEN 'C2' AND 'DF') AND (tail BETWEEN '80' AND 'BF')
+ORDER BY head, tail;
+
+
+# 
+# Populate 3-byte characters: U+800..U+FFFF: [E0-EF][80-BF][80-BF] 
+# excluding overlong [E0][80-9F][80-BF]
+#
+INSERT INTO t1
+SELECT UNHEX(CONCAT(head, middle, tail))
+FROM head, middle, tail
+WHERE (head BETWEEN 'E0' AND 'EF') 
+AND (middle BETWEEN '80' AND 'BF')
+AND (tail BETWEEN '80' AND 'BF')
+AND NOT (head='E0' AND middle BETWEEN '80' AND '9F')
+ORDER BY head, middle, tail;
+
+SELECT count(*) FROM t1;