From: Hiroshi Inoue <inoue@tpf.co.jp>
Date: Fri, 16 Mar 2001 13:03:04 +0000 (+0000)
Subject: Oops I forgot to add new files for multibyte support.
X-Git-Tag: REL7_1~174
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=935017457bb4a5efffcf1a734d1b1b817f225c19;p=postgresql

Oops I forgot to add new files for multibyte support.
Sorry Eiji.
---

diff --git a/src/interfaces/odbc/multibyte.c b/src/interfaces/odbc/multibyte.c
new file mode 100644
index 0000000000..d365618fc7
--- /dev/null
+++ b/src/interfaces/odbc/multibyte.c
@@ -0,0 +1,124 @@
+/*
+ * Module :			multibyte.c
+ *
+ * Description:		Mlutibyte related additional function.
+ *
+ *					Create 2001-03-03 Eiji Tokuya
+ *
+ */		
+#include <string.h>
+#include "multibyte.h"
+
+int multibyte_client_encoding ;	/* Multibyte Client Encoding. */
+int multibyte_status ;		/* Multibyte Odds and ends character. */
+
+unsigned char *multibyte_strchr(unsigned char *s,unsigned char c)
+{
+	int mb_st = 0 ,i = 0;
+	while (!(mb_st == 0 && s[i] == c || s[i] == 0))
+	{
+		if (s[i] == 0)
+			return (0);
+		switch ( multibyte_client_encoding )
+		{
+			case SJIS:
+			{
+				if (mb_st < 2 && s[i] > 0x80 && !(s[i] > 0x9f && s[i] < 0xe0))
+					mb_st = 2;
+				else if (mb_st == 2)
+						mb_st = 1;
+					else
+						mb_st = 0;
+			}
+			break;
+
+
+/* Chinese Big5 Support. */
+		case BIG5:
+			{
+				if ( mb_st < 2 && s[i] > 0xA0 )
+						mb_st = 2;
+				else if ( mb_st == 2 )
+						mb_st = 1;
+					else
+						mb_st = 0;
+			}
+			break;
+		default:
+			{
+				mb_st = 0;
+			}
+		}
+		i++;
+	}
+#ifdef _DEBUG
+	qlog("i = %d\n",i);
+#endif
+	return (s + i);
+}
+
+void multibyte_init(void)
+{
+	multibyte_status = 0;
+}
+
+unsigned char *check_client_encoding(unsigned char *str)
+{
+	if(strstr(str,"%27SJIS%27")||strstr(str,"'SJIS'")||strstr(str,"'sjis'"))
+	{
+		multibyte_client_encoding = SJIS;
+		return ("SJIS");
+	}
+	if(strstr(str,"%27BIG5%27")||strstr(str,"'BIG5'")||strstr(str,"'big5'"))
+	{
+		multibyte_client_encoding = BIG5;
+		return ("BIG5");
+	}
+	return ("OHTER");
+}
+
+/* 
+ * Multibyte Status Function.
+ *	Input	char
+ *	Output	0	: 1 Byte Character.
+ *			1	: MultibyteCharacter Last Byte.
+ *			N	: MultibyteCharacter Fast or Middle Byte.
+ */
+int multibyte_char_check(unsigned char s)
+{
+	switch ( multibyte_client_encoding )
+	{
+/* Japanese Shift-JIS(CP932) Support. */
+		case SJIS:
+		{
+			if ( multibyte_status < 2 && s > 0x80 && !(s > 0x9f && s < 0xE0))
+				multibyte_status = 2;
+			else if (multibyte_status == 2)
+				multibyte_status = 1;
+			else
+				multibyte_status = 0;
+		}
+		break;
+
+		
+/* Chinese Big5(CP950) Support. */
+	case BIG5:
+		{
+			if ( multibyte_status < 2 && s > 0xA0)
+				multibyte_status = 2;
+			else if (multibyte_status == 2)
+				multibyte_status = 1;
+			else
+				multibyte_status = 0;
+		}
+		break;
+	default:
+		{
+			multibyte_status = 0;
+		}
+	}
+#ifdef _DEBUG
+	qlog("multibyte_client_encoding = %d   s = 0x%02X   multibyte_stat = %d\n", multibyte_client_encoding, s, multibyte_status );
+#endif
+	return( multibyte_status );
+}
diff --git a/src/interfaces/odbc/multibyte.h b/src/interfaces/odbc/multibyte.h
new file mode 100644
index 0000000000..7b35ba57ae
--- /dev/null
+++ b/src/interfaces/odbc/multibyte.h
@@ -0,0 +1,39 @@
+/*
+ *
+ * Multibyte library header ( psqlODBC Only )
+ *
+ *
+ */
+
+/* PostgreSQL client encoding */
+#define SQL_ASCII		0	/* SQL/ASCII */
+#define EUC_JP			1	/* EUC for Japanese */
+#define EUC_CN			2	/* EUC for Chinese */
+#define EUC_KR			3	/* EUC for Korean */
+#define EUC_TW			4	/* EUC for Taiwan */
+#define UNICODE			5	/* Unicode UTF-8 */
+#define MULE_INTERNAL	6	/* Mule internal code */
+#define LATIN1			7	/* ISO-8859 Latin 1 */
+#define LATIN2			8	/* ISO-8859 Latin 2 */
+#define LATIN3			9	/* ISO-8859 Latin 3 */
+#define LATIN4			10	/* ISO-8859 Latin 4 */
+#define LATIN5			11	/* ISO-8859 Latin 5 */
+#define LATIN6			12	/* ISO-8859 Latin 6 */
+#define LATIN7			13	/* ISO-8859 Latin 7 */
+#define LATIN8			14	/* ISO-8859 Latin 8 */
+#define LATIN9			15	/* ISO-8859 Latin 9 */
+#define KOI8			16	/* KOI8-R */
+#define WIN				17	/* windows-1251 */
+#define ALT				18	/* Alternativny Variant (MS-DOS CP866) */
+#define SJIS			32	/* Shift JIS */
+#define BIG5			33	/* Big5 */
+#define WIN1250			34	/* windows-1250 */
+
+
+extern int multibyte_client_encoding ;	/* Multibyte client encoding. */
+extern int multibyte_status ;			/* Multibyte charcter status. */
+
+void multibyte_init(void);
+unsigned char *check_client_encoding(unsigned char *str);
+int multibyte_char_check(unsigned char s);
+unsigned char *multibyte_strchr(unsigned char *s, unsigned char c);