From: t-ishii@sra.co.jp

Included are patches intended for allowing PostgreSQL to handle
multi-byte charachter sets such as EUC(Extende Unix Code), Unicode and
Mule internal code. With the MB patch you can use multi-byte character
sets in regexp and LIKE. The encoding system chosen is determined at
the compile time.

To enable the MB extension, you need to define a variable "MB" in
Makefile.global or in Makefile.custom. For further information please
take a look at README.mb under doc directory.

(Note that unlike "jp patch" I do not use modified GNU regexp any
more. I changed Henry Spencer's regexp coming with PostgreSQL.)

1 files changed, 44 insertions, 0 deletions

diff --git a/src/include/regex/pg_wchar.h b/src/include/regex/pg_wchar.h
new file mode 100644
index 00000000000..616f76cfec5
--- /dev/null
+++ b/src/include/regex/pg_wchar.h
@@ -0,0 +1,44 @@
+/* $Id: pg_wchar.h,v 1.1 1998/03/15 07:38:47 scrappy Exp $ */
+
+#ifndef PG_WCHAR_H
+#define PG_WCHAR_H
+
+#include <sys/types.h>
+
+#define EUC_JP 0	/* EUC for Japanese */
+#define EUC_CN 1	/* EUC for Chinese */
+#define EUC_KR 2	/* EUC for Korean */
+#define EUC_TW 3	/* EUC for Taiwan */
+#define UNICODE 4	/* Unicode UTF-8 */
+#define MULE_INTERNAL 5	/* Mule internal code */
+
+#ifdef MB
+typedef unsigned int pg_wchar;
+#else
+#define pg_wchar char
+#endif
+
+/*
+ * various definitions for EUC
+ */
+#define SS2 0x8e	/* single shift 2 */
+#define SS3 0x8f	/* single shift 3 */
+
+/*
+ * various definitions for mule internal code
+ */
+#define IS_LC1(c)	((unsigned char)(c) >= 0x81 && (unsigned char)(c) <= 0x8f)
+#define IS_LCPRV1(c)	((unsigned char)(c) == 0x9a || (unsigned char)(c) == 0x9b)
+#define IS_LC2(c)	((unsigned char)(c) >= 0x90 && (unsigned char)(c) <= 0x99)
+#define IS_LCPRV2(c)	((unsigned char)(c) == 0x9c || (unsigned char)(c) == 0x9d)
+
+#ifdef MB
+extern void pg_mb2wchar(const unsigned char *, pg_wchar *);
+extern void pg_mb2wchar_with_len(const unsigned char *, pg_wchar *, int);
+extern int pg_char_and_wchar_strcmp(const char *, const pg_wchar *);
+extern int pg_wchar_strncmp(const pg_wchar *, const pg_wchar *, size_t);
+extern int pg_char_and_wchar_strncmp(const char *, const pg_wchar *, size_t);
+extern size_t pg_wchar_strlen(const pg_wchar *);
+#endif
+
+#endif