Added template for the utf.c file containing conversion routines. (CVS 1313)

FossilOrigin-Name: 89b42c468f437003f74a1785370e75b2585fa9e2
This commit is contained in:
drh 2004-05-04 15:00:46 +00:00
parent 9102529d8c
commit a5d14fe7c5
3 changed files with 84 additions and 6 deletions

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C Incremental\sbtree.c\schanges.\s(CVS\s1312)
D 2004-05-03T19:49:33
C Added\stemplate\sfor\sthe\sutf.c\sfile\scontaining\sconversion\sroutines.\s(CVS\s1313)
D 2004-05-04T15:00:47
F Makefile.in ab7b0d5118e2da97bac66be8684a1034e3500f5a
F Makefile.linux-gcc b86a99c493a5bfb402d1d9178dcdc4bd4b32f906
F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@ -59,6 +59,7 @@ F src/test4.c 6e3e31acfaf21d66420fc35fda5b17dc0000cc8d
F src/tokenize.c 6676b946fd8825b67ab52140af4fdc57a70bda48
F src/trigger.c a9927b57c865b6f3df3fb5e40c9824d722660ded
F src/update.c 4c50328ebc127852bde8e2950eb8933234802c21
F src/utf.c 8d74ddbfffdc1f2e87bfc11b8c1e2a806313a715
F src/util.c b2287b07ddf55ef7aaa8888a9473123995a69f40
F src/vacuum.c a4e8464c9f6d60659c5343e9d62c742463227820
F src/vdbe.c 7c33f761fdc799633468766fb53eda4301daa6b3
@ -188,7 +189,7 @@ F www/sqlite.tcl 3c83b08cf9f18aa2d69453ff441a36c40e431604
F www/tclsqlite.tcl b9271d44dcf147a93c98f8ecf28c927307abd6da
F www/vdbe.tcl 9b9095d4495f37697fd1935d10e14c6015e80aa1
F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
P 0eee3b5cd400e9548437632ec1dfe625a3fca9cf
R 4e56ff31d4947da66d5a46115140d57d
P fdc629dbbf974024215969e0bd3def4597258812
R 862d1dd5fd20c7467c3bdf6faef3043d
U drh
Z 57bf0fd86b068e3d5bb631ec9f2832d0
Z b159d386ddf509db1096e77212da2220

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fdc629dbbf974024215969e0bd3def4597258812
89b42c468f437003f74a1785370e75b2585fa9e2

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src/utf.c Normal file
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/*
** 2004 April 13
**
** The author disclaims copyright to this source code. In place of
** a legal notice, here is a blessing:
**
** May you do good and not evil.
** May you find forgiveness for yourself and forgive others.
** May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used to translate between UTF-8,
** UTF-16, UTF-16BE, and UTF-16LE.
**
** $Id: utf.c,v 1.1 2004/05/04 15:00:47 drh Exp $
**
** Notes on UTF-8:
**
** Byte-0 Byte-1 Byte-2 Byte-3 Value
** 0xxxxxxx 00000000 00000000 0xxxxxxx
** 110yyyyy 10xxxxxx 00000000 00000yyy yyxxxxxx
** 1110zzzz 10yyyyyy 10xxxxxx 00000000 zzzzyyyy yyxxxxxx
** 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx 000uuuuu zzzzyyyy yyxxxxxx
**
**
** Notes on UTF-16: (with wwww+1==uuuuu)
**
** Word-0 Word-1 Value
** 110110wwwwxxxxxx 110111yyyyyyyyyy 000uuuuu xxxxxxyy yyyyyyyy
** xxxxxxxxyyyyyyyy 00000000 xxxxxxxx yyyyyyyy
**
** BOM or Byte Order Mark:
** 0xff 0xfe little-endian utf-16 follows
** 0xfe 0xff big-endian utf-16 follows
*/
/*
** Convert a string in UTF-16 native byte (or with a Byte-order-mark or
** "BOM") into a UTF-8 string. The UTF-8 string is written into space
** obtained from sqlit3Malloc() and must be released by the calling function.
**
** The parameter N is the number of bytes in the UTF-16 string. If N is
** negative, the entire string up to the first \u0000 character is translated.
**
** The returned UTF-8 string is always \000 terminated.
*/
unsigned char *sqlite3utf16to8(const void *pData, int N){
unsigned char *in = (unsigned char *)pData;
}
/*
** Convert a string in UTF-16 native byte or with a BOM into a UTF-16LE
** string. The conversion occurs in-place. The output overwrites the
** input. N bytes are converted. If N is negative everything is converted
** up to the first \u0000 character.
**
** If the native byte order is little-endian and there is no BOM, then
** this routine is a no-op. If there is a BOM at the start of the string,
** it is removed.
*/
void sqlite3utf16to16le(void *pData, int N){
}
void sqlite3utf16to16be(void *pData, int N){
}
/*
** Translation from UTF-16LE to UTF-16BE and back again is accomplished
** using the library function swab().
*/
/*
** Translate UTF-8 to UTF-16BE or UTF-16LE
*/
void *sqlite3utf8to16be(const unsigned char *pIn, int N){
}
void *sqlite3utf8to16le(const unsigned char *pIn, int N){
}