Add pg_database_encoding_max_length() function.

tatsuo-ishii · tatsuo-ishii · commit be629abfc85d · 2001-09-23T10:59:45.000Z
diff --git a/src/backend/utils/mb/wchar.c b/src/backend/utils/mb/wchar.c
@@ -1,7 +1,7 @@
 /*
  * conversion functions between pg_wchar and multi-byte streams.
  * Tatsuo Ishii
- * $Id: wchar.c,v 1.21 2001/09/21 15:27:38 tgl Exp $
+ * $Id: wchar.c,v 1.22 2001/09/23 10:59:45 ishii Exp $
  *
  * WIN1250 client encoding updated by Pavel Behal
  *
@@ -573,4 +573,14 @@ pg_verifymbstr(const unsigned char *mbstr, int len)
 	}
 	return NULL;
 }
+
+/*
+ * fetch maximum length of a char encoding for the current database
+ */
+int
+pg_database_encoding_max_length(void)
+{
+	return pg_wchar_table[GetDatabaseEncoding()].maxmblen;
+}
+
 #endif
diff --git a/src/include/mb/pg_wchar.h b/src/include/mb/pg_wchar.h
@@ -1,4 +1,4 @@
-/* $Id: pg_wchar.h,v 1.31 2001/09/21 15:27:38 tgl Exp $ */
+/* $Id: pg_wchar.h,v 1.32 2001/09/23 10:59:45 ishii Exp $ */
 
 #ifndef PG_WCHAR_H
 #define PG_WCHAR_H
@@ -226,6 +226,7 @@ extern int	pg_mbstrlen_with_len(const unsigned char *, int);
 extern int	pg_mbcliplen(const unsigned char *, int, int);
 extern int	pg_mbcharcliplen(const unsigned char *, int, int);
 extern int	pg_encoding_max_length(int);
+extern int	pg_database_encoding_max_length(void);
 
 extern int		pg_set_client_encoding(int);
 extern int		pg_get_client_encoding(void);

Original file line number	Diff line number	Diff line change
`@@ -1,7 +1,7 @@`
`1`	`1`	`/*`
`2`	`2`	`* conversion functions between pg_wchar and multi-byte streams.`
`3`	`3`	`* Tatsuo Ishii`
`4`		`- * $Id: wchar.c,v 1.21 2001/09/21 15:27:38 tgl Exp $`
	`4`	`+ * $Id: wchar.c,v 1.22 2001/09/23 10:59:45 ishii Exp $`
`5`	`5`	`*`
`6`	`6`	`* WIN1250 client encoding updated by Pavel Behal`
`7`	`7`	`*`
`@@ -573,4 +573,14 @@ pg_verifymbstr(const unsigned char *mbstr, int len)`
`573`	`573`	`}`
`574`	`574`	`return NULL;`
`575`	`575`	`}`
	`576`	`+`
	`577`	`+/*`
	`578`	`+ * fetch maximum length of a char encoding for the current database`
	`579`	`+ */`
	`580`	`+int`
	`581`	`+pg_database_encoding_max_length(void)`
	`582`	`+{`
	`583`	`+ return pg_wchar_table[GetDatabaseEncoding()].maxmblen;`
	`584`	`+}`
	`585`	`+`
`576`	`586`	`#endif`