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Fix a bug with UTF-16 byte-order-marks on big-endian hosts. (CVS 1522)

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FossilOrigin-Name: c17b864103fe5e6def0f650eadb7b2cc6e87144f
This commit is contained in:
danielk1977 2004-06-02 00:29:24 +00:00
parent cc74b1429d
commit 193c72f84e
3 changed files with 13 additions and 30 deletions
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14
manifest
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@ -1,5 +1,5 @@
C Fix\sanother\swebsite\stypo.\s(CVS\s1521)
D 2004-06-02T00:08:56
C Fix\sa\sbug\swith\sUTF-16\sbyte-order-marks\son\sbig-endian\shosts.\s(CVS\s1522)
D 2004-06-02T00:29:24
F Makefile.in ab7b0d5118e2da97bac66be8684a1034e3500f5a
F Makefile.linux-gcc b86a99c493a5bfb402d1d9178dcdc4bd4b32f906
F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@ -67,7 +67,7 @@ F src/test5.c a894fbfa8a7dcdc2cbc0c38c11149cc5c8252cea
F src/tokenize.c 183c5d7da11affab5d70d903d33409c8c0ce6c5b
F src/trigger.c 04b2c310d0d056b213609cab6df5fff03d5eaf88
F src/update.c 259f06e7b22c684b2d3dda54a18185892d6e9573
F src/utf.c c18b4e66bd13872b7199444addaa04785ff1b80a
F src/utf.c c8be20ecdcb10659e23c43e35d835460e964d248
F src/util.c 3b647719c0bece41491300b605cff96a7a26f03a
F src/vacuum.c c91acc316127411980982938d050b299d42b81ef
F src/vdbe.c cc754eddc0d2e741e57c4557c77754d8bbd93eeb
@ -214,7 +214,7 @@ F www/support.tcl 1801397edd271cc39a2aadd54e701184b5181248
F www/tclsqlite.tcl 19191cf2a1010eaeff74c51d83fd5f5a4d899075
F www/vdbe.tcl 59288db1ac5c0616296b26dce071c36cb611dfe9
F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
P 023d1760c1a720632b25c98d14bf521ab91861e2
R 5a6a7e0dc4da60097c6d0b9613de9a3a
U drh
Z 18ef1953bc240ed2b92d7ff4b96c3997
P 24e2bbd0f233eaec1789e866e9abb88db66e2278
R 770b5bbc0f504b74630be07ad566c456
U danielk1977
Z d278c6c962aa9ab7dcd916a21504bfc5

2
manifest.uuid
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@ -1 +1 @@
24e2bbd0f233eaec1789e866e9abb88db66e2278
c17b864103fe5e6def0f650eadb7b2cc6e87144f

27
src/utf.c
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@ -12,7 +12,7 @@
** This file contains routines used to translate between UTF-8,
** UTF-16, UTF-16BE, and UTF-16LE.
**
** $Id: utf.c,v 1.15 2004/05/31 18:51:58 drh Exp $
** $Id: utf.c,v 1.16 2004/06/02 00:29:24 danielk1977 Exp $
**
** Notes on UTF-8:
**
@ -59,19 +59,6 @@ struct UtfString {
int c; /* Number of pZ bytes already read or written */
};
/* TODO: Implement this macro in os.h. It should be 1 on big-endian
** machines, and 0 on little-endian.
*/
#define SQLITE_NATIVE_BIGENDIAN 0
#if SQLITE_NATIVE_BIGENDIAN == 1
#define BOM_BIGENDIAN 0x0000FFFE
#define BOM_LITTLEENDIAN 0x0000FEFF
#else
#define BOM_BIGENDIAN 0x0000FEFF
#define BOM_LITTLEENDIAN 0x0000FFFE
#endif
/*
** These two macros are used to interpret the first two bytes of the
** unsigned char array pZ as a 16-bit unsigned int. BE16() for a big-endian
@ -108,14 +95,10 @@ static int readUtf16Bom(UtfString *pStr, int big_endian){
** present.
*/
if( pStr->n>1 ){
u32 bom = BE16(pStr->pZ);
if( bom==BOM_BIGENDIAN ){
pStr->c = 2;
return 1;
}
if( bom==BOM_LITTLEENDIAN ){
pStr->c = 2;
return 0;
u8 bom = sqlite3UtfReadBom(pStr->pZ, 2);
if( bom ){
pStr->c += 2;
return (bom==TEXT_Utf16le)?0:1;
}
}