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Diffstat (limited to 'src/backend/utils/mb/wchar.c')
-rw-r--r--src/backend/utils/mb/wchar.c154
1 files changed, 78 insertions, 76 deletions
diff --git a/src/backend/utils/mb/wchar.c b/src/backend/utils/mb/wchar.c
index 0c51da5ab71..9d778d00418 100644
--- 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 1.24 2001/10/15 01:19:15 ishii Exp $
+ * $Id: wchar.c,v 1.25 2001/10/25 05:49:51 momjian Exp $
*
* WIN1250 client encoding updated by Pavel Behal
*
@@ -29,7 +29,7 @@
* SQL/ASCII
*/
static int pg_ascii2wchar_with_len
- (const unsigned char *from, pg_wchar * to, int len)
+ (const unsigned char *from, pg_wchar *to, int len)
{
int cnt = 0;
@@ -54,7 +54,7 @@ pg_ascii_mblen(const unsigned char *s)
*/
static int pg_euc2wchar_with_len
- (const unsigned char *from, pg_wchar * to, int len)
+ (const unsigned char *from, pg_wchar *to, int len)
{
int cnt = 0;
@@ -111,7 +111,7 @@ pg_euc_mblen(const unsigned char *s)
* EUC_JP
*/
static int pg_eucjp2wchar_with_len
- (const unsigned char *from, pg_wchar * to, int len)
+ (const unsigned char *from, pg_wchar *to, int len)
{
return (pg_euc2wchar_with_len(from, to, len));
}
@@ -126,7 +126,7 @@ pg_eucjp_mblen(const unsigned char *s)
* EUC_KR
*/
static int pg_euckr2wchar_with_len
- (const unsigned char *from, pg_wchar * to, int len)
+ (const unsigned char *from, pg_wchar *to, int len)
{
return (pg_euc2wchar_with_len(from, to, len));
}
@@ -141,7 +141,7 @@ pg_euckr_mblen(const unsigned char *s)
* EUC_CN
*/
static int pg_euccn2wchar_with_len
- (const unsigned char *from, pg_wchar * to, int len)
+ (const unsigned char *from, pg_wchar *to, int len)
{
int cnt = 0;
@@ -195,7 +195,7 @@ pg_euccn_mblen(const unsigned char *s)
* EUC_TW
*/
static int pg_euctw2wchar_with_len
- (const unsigned char *from, pg_wchar * to, int len)
+ (const unsigned char *from, pg_wchar *to, int len)
{
int cnt = 0;
@@ -257,7 +257,7 @@ pg_euctw_mblen(const unsigned char *s)
* "from" not necessarily null terminated.
*/
static int
-pg_utf2wchar_with_len(const unsigned char *from, pg_wchar * to, int len)
+pg_utf2wchar_with_len(const unsigned char *from, pg_wchar *to, int len)
{
unsigned char c1,
c2,
@@ -325,7 +325,7 @@ pg_utf_mblen(const unsigned char *s)
* "from" not necessarily null terminated.
*/
static int
-pg_mule2wchar_with_len(const unsigned char *from, pg_wchar * to, int len)
+pg_mule2wchar_with_len(const unsigned char *from, pg_wchar *to, int len)
{
int cnt = 0;
@@ -395,7 +395,7 @@ pg_mule_mblen(const unsigned char *s)
* ISO8859-1
*/
static int
-pg_latin12wchar_with_len(const unsigned char *from, pg_wchar * to, int len)
+pg_latin12wchar_with_len(const unsigned char *from, pg_wchar *to, int len)
{
int cnt = 0;
@@ -458,33 +458,33 @@ pg_big5_mblen(const unsigned char *s)
}
pg_wchar_tbl pg_wchar_table[] = {
- {pg_ascii2wchar_with_len, pg_ascii_mblen, 1}, /* 0; PG_SQL_ASCII */
- {pg_eucjp2wchar_with_len, pg_eucjp_mblen, 3}, /* 1; PG_EUC_JP */
- {pg_euccn2wchar_with_len, pg_euccn_mblen, 3}, /* 2; PG_EUC_CN */
- {pg_euckr2wchar_with_len, pg_euckr_mblen, 3}, /* 3; PG_EUC_KR */
- {pg_euctw2wchar_with_len, pg_euctw_mblen, 3}, /* 4; PG_EUC_TW */
+ {pg_ascii2wchar_with_len, pg_ascii_mblen, 1}, /* 0; PG_SQL_ASCII */
+ {pg_eucjp2wchar_with_len, pg_eucjp_mblen, 3}, /* 1; PG_EUC_JP */
+ {pg_euccn2wchar_with_len, pg_euccn_mblen, 3}, /* 2; PG_EUC_CN */
+ {pg_euckr2wchar_with_len, pg_euckr_mblen, 3}, /* 3; PG_EUC_KR */
+ {pg_euctw2wchar_with_len, pg_euctw_mblen, 3}, /* 4; PG_EUC_TW */
{pg_utf2wchar_with_len, pg_utf_mblen, 3}, /* 5; PG_UNICODE */
- {pg_mule2wchar_with_len, pg_mule_mblen, 3}, /* 6; PG_MULE_INTERNAL */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 7; PG_LATIN1 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 8; PG_LATIN2 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 9; PG_LATIN3 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 10; PG_LATIN4 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 11; PG_LATIN5 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 12; PG_KOI8 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 13; PG_WIN1251 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 14; PG_ALT */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 15; ISO-8859-5 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 16; ISO-8859-6 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 17; ISO-8859-7 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 18; ISO-8859-8 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 19; ISO-8859-10 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 20; ISO-8859-13 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 21; ISO-8859-14 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 22; ISO-8859-15 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 23; ISO-8859-16 */
- {0, pg_sjis_mblen, 2}, /* 24; PG_SJIS */
- {0, pg_big5_mblen, 2}, /* 25; PG_BIG5 */
- {pg_latin12wchar_with_len, pg_latin1_mblen, 1} /* 26; PG_WIN1250 */
+ {pg_mule2wchar_with_len, pg_mule_mblen, 3}, /* 6; PG_MULE_INTERNAL */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 7; PG_LATIN1 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 8; PG_LATIN2 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 9; PG_LATIN3 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 10; PG_LATIN4 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 11; PG_LATIN5 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 12; PG_KOI8 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 13; PG_WIN1251 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 14; PG_ALT */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 15; ISO-8859-5 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 16; ISO-8859-6 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 17; ISO-8859-7 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 18; ISO-8859-8 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 19; ISO-8859-10 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 20; ISO-8859-13 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 21; ISO-8859-14 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 22; ISO-8859-15 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1}, /* 23; ISO-8859-16 */
+ {0, pg_sjis_mblen, 2}, /* 24; PG_SJIS */
+ {0, pg_big5_mblen, 2}, /* 25; PG_BIG5 */
+ {pg_latin12wchar_with_len, pg_latin1_mblen, 1} /* 26; PG_WIN1250 */
};
/* returns the byte length of a word for mule internal code */
@@ -502,9 +502,9 @@ pg_encoding_mblen(int encoding, const unsigned char *mbstr)
{
Assert(PG_VALID_ENCODING(encoding));
- return( (encoding >= 0 &&
- encoding < sizeof(pg_wchar_table)/sizeof(pg_wchar_tbl)) ?
- ((*pg_wchar_table[encoding].mblen) (mbstr)) :
+ return ((encoding >= 0 &&
+ encoding < sizeof(pg_wchar_table) / sizeof(pg_wchar_tbl)) ?
+ ((*pg_wchar_table[encoding].mblen) (mbstr)) :
((*pg_wchar_table[PG_SQL_ASCII].mblen) (mbstr)));
}
@@ -531,59 +531,62 @@ pg_encoding_max_length(int encoding)
char *
pg_verifymbstr(const unsigned char *mbstr, int len)
{
- int l;
- int i, j;
- static char buf[256];
- int slen = 0;
+ int l;
+ int i,
+ j;
+ static char buf[256];
+ int slen = 0;
/* we do not check single byte encodings */
if (pg_database_encoding_max_length() <= 1)
- return NULL;
+ return NULL;
while (len > 0 && *mbstr)
{
/* special UTF-8 check */
if (GetDatabaseEncoding() == PG_UTF8 &&
- (*mbstr & 0xf8) == 0xf0)
+ (*mbstr & 0xf8) == 0xf0)
{
- snprintf(buf, sizeof(buf), "Unicode >= 0x10000 is not supoorted");
- return(buf);
+ snprintf(buf, sizeof(buf), "Unicode >= 0x10000 is not supoorted");
+ return (buf);
}
-
+
l = pg_mblen(mbstr);
/* multi-byte letter? */
if (l > 1)
{
- for (i=1;i<l;i++)
- {
- if (i > len || *(mbstr+i) == '\0' ||
- /* we assume that every muti-byte letter
- * consists of bytes being the 8th bit set
- */
- ((*(mbstr+i) & 0x80) == 0))
+ for (i = 1; i < l; i++)
{
- int remains = sizeof(buf);
- char *p = buf;
-
- slen = snprintf(p, remains, "Invalid %s character sequence found (0x",
- GetDatabaseEncodingName());
- p += slen;
- remains -= slen;
-
- i = ((*(mbstr+i) & 0x80) == 0)?l:i;
-
- for (j=0;j<i;j++)
- {
- slen = snprintf(p, remains, "%02x",
- *(mbstr+j));
- p += slen;
- remains -= slen;
- }
- snprintf(p, remains, ")");
- return(buf);
+ if (i > len || *(mbstr + i) == '\0' ||
+
+ /*
+ * we assume that every muti-byte letter consists of bytes
+ * being the 8th bit set
+ */
+ ((*(mbstr + i) & 0x80) == 0))
+ {
+ int remains = sizeof(buf);
+ char *p = buf;
+
+ slen = snprintf(p, remains, "Invalid %s character sequence found (0x",
+ GetDatabaseEncodingName());
+ p += slen;
+ remains -= slen;
+
+ i = ((*(mbstr + i) & 0x80) == 0) ? l : i;
+
+ for (j = 0; j < i; j++)
+ {
+ slen = snprintf(p, remains, "%02x",
+ *(mbstr + j));
+ p += slen;
+ remains -= slen;
+ }
+ snprintf(p, remains, ")");
+ return (buf);
+ }
}
- }
}
len -= l;
mbstr += l;
@@ -599,5 +602,4 @@ pg_database_encoding_max_length(void)
{
return pg_wchar_table[GetDatabaseEncoding()].maxmblen;
}
-
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-19 16:52:40 +0000