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-rw-r--r--src/backend/utils/mb/wchar.c569
1 files changed, 314 insertions, 255 deletions
diff --git a/src/backend/utils/mb/wchar.c b/src/backend/utils/mb/wchar.c
index 3cc2477061f..edd786f29f8 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 1.3 1998/08/25 04:19:16 momjian Exp $
+ * $Id: wchar.c,v 1.4 1998/09/01 04:33:26 momjian Exp $
*/
#include "mb/pg_wchar.h"
@@ -10,7 +10,7 @@
* conversion to pg_wchar is done by "table driven."
* to add an encoding support, define mb2wchar_with_len(), mblen()
* for the particular encoding. Note that if the encoding is only
- * supported in the client, you don't need to define
+ * supported in the client, you don't need to define
* mb2wchar_with_len() function (SJIS is the case).
*/
@@ -18,18 +18,20 @@
* SQL/ASCII
*/
static void pg_ascii2wchar_with_len
-(const unsigned char *from, pg_wchar *to, int len)
+ (const unsigned char *from, pg_wchar * to, int len)
{
- while (*from && len > 0) {
- *to++ = *from++;
- len--;
- }
- *to = 0;
+ while (*from && len > 0)
+ {
+ *to++ = *from++;
+ len--;
+ }
+ *to = 0;
}
-static int pg_ascii_mblen(const unsigned char *s)
+static int
+pg_ascii_mblen(const unsigned char *s)
{
- return(1);
+ return (1);
}
/*
@@ -37,169 +39,195 @@ static int pg_ascii_mblen(const unsigned char *s)
*/
static void pg_euc2wchar_with_len
-(const unsigned char *from, pg_wchar *to, int len)
+ (const unsigned char *from, pg_wchar * to, int len)
{
- while (*from && len > 0) {
- if (*from == SS2) {
- from++;
- len--;
- *to = 0xff & *from++;
- len--;
- } else if (*from == SS3) {
- from++;
- *to = *from++ << 8;
- *to |= 0x3f & *from++;
- len -= 3;
- } else if (*from & 0x80) {
- *to = *from++ << 8;
- *to |= *from++;
- len -= 2;
- } else {
- *to = *from++;
- len--;
- }
- to++;
- }
- *to = 0;
+ while (*from && len > 0)
+ {
+ if (*from == SS2)
+ {
+ from++;
+ len--;
+ *to = 0xff & *from++;
+ len--;
+ }
+ else if (*from == SS3)
+ {
+ from++;
+ *to = *from++ << 8;
+ *to |= 0x3f & *from++;
+ len -= 3;
+ }
+ else if (*from & 0x80)
+ {
+ *to = *from++ << 8;
+ *to |= *from++;
+ len -= 2;
+ }
+ else
+ {
+ *to = *from++;
+ len--;
+ }
+ to++;
+ }
+ *to = 0;
}
-static int pg_euc_mblen(const unsigned char *s)
+static int
+pg_euc_mblen(const unsigned char *s)
{
- int len;
+ int len;
- if (*s == SS2) {
- len = 2;
- } else if (*s == SS3) {
- len = 3;
- } else if (*s & 0x80) {
- len = 2;
- } else {
- len = 1;
- }
- return(len);
+ if (*s == SS2)
+ len = 2;
+ else if (*s == SS3)
+ len = 3;
+ else if (*s & 0x80)
+ len = 2;
+ else
+ len = 1;
+ return (len);
}
/*
* EUC_JP
*/
static void pg_eucjp2wchar_with_len
-(const unsigned char *from, pg_wchar *to, int len)
+ (const unsigned char *from, pg_wchar * to, int len)
{
- pg_euc2wchar_with_len(from,to,len);
+ pg_euc2wchar_with_len(from, to, len);
}
-static int pg_eucjp_mblen(const unsigned char *s)
+static int
+pg_eucjp_mblen(const unsigned char *s)
{
- return(pg_euc_mblen(s));
+ return (pg_euc_mblen(s));
}
/*
* EUC_KR
*/
static void pg_euckr2wchar_with_len
-(const unsigned char *from, pg_wchar *to, int len)
+ (const unsigned char *from, pg_wchar * to, int len)
{
- pg_euc2wchar_with_len(from,to,len);
+ pg_euc2wchar_with_len(from, to, len);
}
-static int pg_euckr_mblen(const unsigned char *s)
+static int
+pg_euckr_mblen(const unsigned char *s)
{
- return(pg_euc_mblen(s));
+ return (pg_euc_mblen(s));
}
/*
* EUC_CN
*/
static void pg_euccn2wchar_with_len
-(const unsigned char *from, pg_wchar *to, int len)
+ (const unsigned char *from, pg_wchar * to, int len)
{
- while (*from && len > 0) {
- if (*from == SS2) {
- from++;
- len--;
- *to = 0x3f00 & (*from++ << 8);
- *to = *from++;
- len -= 2;
- } else if (*from == SS3) {
- from++;
- *to = *from++ << 8;
- *to |= 0x3f & *from++;
- len -= 3;
- } else if (*from & 0x80) {
- *to = *from++ << 8;
- *to |= *from++;
- len -= 2;
- } else {
- *to = *from++;
- len--;
- }
- to++;
- }
- *to = 0;
+ while (*from && len > 0)
+ {
+ if (*from == SS2)
+ {
+ from++;
+ len--;
+ *to = 0x3f00 & (*from++ << 8);
+ *to = *from++;
+ len -= 2;
+ }
+ else if (*from == SS3)
+ {
+ from++;
+ *to = *from++ << 8;
+ *to |= 0x3f & *from++;
+ len -= 3;
+ }
+ else if (*from & 0x80)
+ {
+ *to = *from++ << 8;
+ *to |= *from++;
+ len -= 2;
+ }
+ else
+ {
+ *to = *from++;
+ len--;
+ }
+ to++;
+ }
+ *to = 0;
}
-static int pg_euccn_mblen(const unsigned char *s)
+static int
+pg_euccn_mblen(const unsigned char *s)
{
- int len;
+ int len;
- if (*s == SS2) {
- len = 3;
- } else if (*s == SS3) {
- len = 3;
- } else if (*s & 0x80) {
- len = 2;
- } else {
- len = 1;
- }
- return(len);
+ if (*s == SS2)
+ len = 3;
+ else if (*s == SS3)
+ len = 3;
+ else if (*s & 0x80)
+ len = 2;
+ else
+ len = 1;
+ return (len);
}
/*
* EUC_TW
*/
static void pg_euctw2wchar_with_len
-(const unsigned char *from, pg_wchar *to, int len)
+ (const unsigned char *from, pg_wchar * to, int len)
{
- while (*from && len > 0) {
- if (*from == SS2) {
- from++;
- len--;
- *to = *from++ << 16;
- *to |= *from++ << 8;
- *to |= *from++;
- len -= 3;
- } else if (*from == SS3) {
- from++;
- *to = *from++ << 8;
- *to |= 0x3f & *from++;
- len -= 3;
- } else if (*from & 0x80) {
- *to = *from++ << 8;
- *to |= *from++;
- len -= 2;
- } else {
- *to = *from++;
- len--;
- }
- to++;
- }
- *to = 0;
+ while (*from && len > 0)
+ {
+ if (*from == SS2)
+ {
+ from++;
+ len--;
+ *to = *from++ << 16;
+ *to |= *from++ << 8;
+ *to |= *from++;
+ len -= 3;
+ }
+ else if (*from == SS3)
+ {
+ from++;
+ *to = *from++ << 8;
+ *to |= 0x3f & *from++;
+ len -= 3;
+ }
+ else if (*from & 0x80)
+ {
+ *to = *from++ << 8;
+ *to |= *from++;
+ len -= 2;
+ }
+ else
+ {
+ *to = *from++;
+ len--;
+ }
+ to++;
+ }
+ *to = 0;
}
-static int pg_euctw_mblen(const unsigned char *s)
+static int
+pg_euctw_mblen(const unsigned char *s)
{
- int len;
+ int len;
- if (*s == SS2) {
- len = 4;
- } else if (*s == SS3) {
- len = 3;
- } else if (*s & 0x80) {
- len = 2;
- } else {
- len = 1;
- }
- return(len);
+ if (*s == SS2)
+ len = 4;
+ else if (*s == SS3)
+ len = 3;
+ else if (*s & 0x80)
+ len = 2;
+ else
+ len = 1;
+ return (len);
}
/*
@@ -208,45 +236,55 @@ static int pg_euctw_mblen(const unsigned char *s)
* len: length of from.
* "from" not necessarily null terminated.
*/
-static void pg_utf2wchar_with_len(const unsigned char *from, pg_wchar *to, int len)
+static void
+pg_utf2wchar_with_len(const unsigned char *from, pg_wchar * to, int len)
{
- unsigned char c1,c2,c3;
- while (*from && len > 0) {
- if ((*from & 0x80) == 0) {
- *to = *from++;
- len--;
- } else if ((*from & 0xe0) == 0xc0) {
- c1 = *from++ & 0x1f;
- c2 = *from++ & 0x3f;
- len -= 2;
- *to = c1 << 6;
- *to |= c2;
- } else if ((*from & 0xe0) == 0xe0) {
- c1 = *from++ & 0x0f;
- c2 = *from++ & 0x3f;
- c3 = *from++ & 0x3f;
- len -= 3;
- *to = c1 << 12;
- *to |= c2 << 6;
- *to |= c3;
- }
- to++;
- }
- *to = 0;
+ unsigned char c1,
+ c2,
+ c3;
+
+ while (*from && len > 0)
+ {
+ if ((*from & 0x80) == 0)
+ {
+ *to = *from++;
+ len--;
+ }
+ else if ((*from & 0xe0) == 0xc0)
+ {
+ c1 = *from++ & 0x1f;
+ c2 = *from++ & 0x3f;
+ len -= 2;
+ *to = c1 << 6;
+ *to |= c2;
+ }
+ else if ((*from & 0xe0) == 0xe0)
+ {
+ c1 = *from++ & 0x0f;
+ c2 = *from++ & 0x3f;
+ c3 = *from++ & 0x3f;
+ len -= 3;
+ *to = c1 << 12;
+ *to |= c2 << 6;
+ *to |= c3;
+ }
+ to++;
+ }
+ *to = 0;
}
-static int pg_utf_mblen(const unsigned char *s)
+static int
+pg_utf_mblen(const unsigned char *s)
{
- int len = 1;
+ int len = 1;
- if ((*s & 0x80) == 0) {
- len = 1;
- } else if ((*s & 0xe0) == 0xc0) {
- len = 2;
- } else if ((*s & 0xe0) == 0xe0) {
- len = 3;
- }
- return(len);
+ if ((*s & 0x80) == 0)
+ len = 1;
+ else if ((*s & 0xe0) == 0xc0)
+ len = 2;
+ else if ((*s & 0xe0) == 0xe0)
+ len = 3;
+ return (len);
}
/*
@@ -255,127 +293,148 @@ static int pg_utf_mblen(const unsigned char *s)
* len: length of from.
* "from" not necessarily null terminated.
*/
-static void pg_mule2wchar_with_len(const unsigned char *from, pg_wchar *to, int len)
+static void
+pg_mule2wchar_with_len(const unsigned char *from, pg_wchar * to, int len)
{
- while (*from && len > 0) {
- if (IS_LC1(*from)) {
- *to = *from++ << 16;
- *to |= *from++;
- len -= 2;
- } else if (IS_LCPRV1(*from)) {
- from++;
- *to = *from++ << 16;
- *to |= *from++;
- len -= 3;
- } else if (IS_LC2(*from)) {
- *to = *from++ << 16;
- *to |= *from++ << 8;
- *to |= *from++;
- len -= 3;
- } else if (IS_LCPRV2(*from)) {
- from++;
- *to = *from++ << 16;
- *to |= *from++ << 8;
- *to |= *from++;
- len -= 4;
- } else { /* assume ASCII */
- *to = (unsigned char)*from++;
- len--;
- }
- to++;
- }
- *to = 0;
+ while (*from && len > 0)
+ {
+ if (IS_LC1(*from))
+ {
+ *to = *from++ << 16;
+ *to |= *from++;
+ len -= 2;
+ }
+ else if (IS_LCPRV1(*from))
+ {
+ from++;
+ *to = *from++ << 16;
+ *to |= *from++;
+ len -= 3;
+ }
+ else if (IS_LC2(*from))
+ {
+ *to = *from++ << 16;
+ *to |= *from++ << 8;
+ *to |= *from++;
+ len -= 3;
+ }
+ else if (IS_LCPRV2(*from))
+ {
+ from++;
+ *to = *from++ << 16;
+ *to |= *from++ << 8;
+ *to |= *from++;
+ len -= 4;
+ }
+ else
+ { /* assume ASCII */
+ *to = (unsigned char) *from++;
+ len--;
+ }
+ to++;
+ }
+ *to = 0;
}
-int pg_mule_mblen(const unsigned char *s)
+int
+pg_mule_mblen(const unsigned char *s)
{
- int len;
+ int len;
- if (IS_LC1(*s)) {
- len = 2;
- } else if (IS_LCPRV1(*s)) {
- len = 3;
- } else if (IS_LC2(*s)) {
- len = 3;
- } else if (IS_LCPRV2(*s)) {
- len = 4;
- } else { /* assume ASCII */
- len = 1;
- }
- return(len);
+ if (IS_LC1(*s))
+ len = 2;
+ else if (IS_LCPRV1(*s))
+ len = 3;
+ else if (IS_LC2(*s))
+ len = 3;
+ else if (IS_LCPRV2(*s))
+ len = 4;
+ else
+ { /* assume ASCII */
+ len = 1;
+ }
+ return (len);
}
/*
* ISO8859-1
*/
-static void pg_latin12wchar_with_len(const unsigned char *from, pg_wchar *to, int len)
+static void
+pg_latin12wchar_with_len(const unsigned char *from, pg_wchar * to, int len)
{
- while (*from && len-- > 0) {
- *to++ = *from++;
- }
- *to = 0;
+ while (*from && len-- > 0)
+ *to++ = *from++;
+ *to = 0;
}
-static int pg_latin1_mblen(const unsigned char *s)
+static int
+pg_latin1_mblen(const unsigned char *s)
{
- return(1);
+ return (1);
}
/*
* SJIS
*/
-static int pg_sjis_mblen(const unsigned char *s)
+static int
+pg_sjis_mblen(const unsigned char *s)
{
- int len;
+ int len;
- if (*s >= 0xa1 && *s <= 0xdf) { /* 1 byte kana? */
- len = 1;
- } else if (*s > 0x7f) { /* kanji? */
- len = 2;
- } else { /* should be ASCII */
- len = 1;
- }
- return(len);
+ if (*s >= 0xa1 && *s <= 0xdf)
+ { /* 1 byte kana? */
+ len = 1;
+ }
+ else if (*s > 0x7f)
+ { /* kanji? */
+ len = 2;
+ }
+ else
+ { /* should be ASCII */
+ len = 1;
+ }
+ return (len);
}
pg_wchar_tbl pg_wchar_table[] = {
- {pg_ascii2wchar_with_len, pg_ascii_mblen},
- {pg_eucjp2wchar_with_len, pg_eucjp_mblen},
- {pg_euccn2wchar_with_len, pg_euccn_mblen},
- {pg_euckr2wchar_with_len, pg_euckr_mblen},
- {pg_euctw2wchar_with_len, pg_euctw_mblen},
- {pg_utf2wchar_with_len, pg_utf_mblen},
- {pg_mule2wchar_with_len, pg_mule_mblen},
- {pg_latin12wchar_with_len, pg_latin1_mblen},
- {pg_latin12wchar_with_len, pg_latin1_mblen},
- {pg_latin12wchar_with_len, pg_latin1_mblen},
- {pg_latin12wchar_with_len, pg_latin1_mblen},
- {pg_latin12wchar_with_len, pg_latin1_mblen},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, 0},
- {0, pg_sjis_mblen}
+ {pg_ascii2wchar_with_len, pg_ascii_mblen},
+ {pg_eucjp2wchar_with_len, pg_eucjp_mblen},
+ {pg_euccn2wchar_with_len, pg_euccn_mblen},
+ {pg_euckr2wchar_with_len, pg_euckr_mblen},
+ {pg_euctw2wchar_with_len, pg_euctw_mblen},
+ {pg_utf2wchar_with_len, pg_utf_mblen},
+ {pg_mule2wchar_with_len, pg_mule_mblen},
+ {pg_latin12wchar_with_len, pg_latin1_mblen},
+ {pg_latin12wchar_with_len, pg_latin1_mblen},
+ {pg_latin12wchar_with_len, pg_latin1_mblen},
+ {pg_latin12wchar_with_len, pg_latin1_mblen},
+ {pg_latin12wchar_with_len, pg_latin1_mblen},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, 0},
+ {0, pg_sjis_mblen}
};
/* returns the byte length of a word for mule internal code */
-int pg_mic_mblen(const unsigned char *mbstr)
+int
+pg_mic_mblen(const unsigned char *mbstr)
{
- return(pg_mule_mblen(mbstr));
+ return (pg_mule_mblen(mbstr));
}
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