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** 2001 September 15

** 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.

*************************************************************************

** Code for testing the utf.c module in SQLite. This code

** is not included in the SQLite library. It is used for automated

** testing of the SQLite library. Specifically, the code in this file

** is used for testing the SQLite routines for converting between

** the various supported unicode encodings.

#include "sqliteInt.h"

#include "vdbeInt.h"

#if defined(INCLUDE_SQLITE_TCL_H)

# include "sqlite_tcl.h"

#else

# include "tcl.h"

#endif

#include <stdlib.h>

#include <string.h>

** The first argument is a TCL UTF-8 string. Return the byte array

** object with the encoded representation of the string, including

** the NULL terminator.

static int SQLITE_TCLAPI binarize(

void * clientData,

Tcl_Interp *interp,

int objc,

Tcl_Obj *CONST objv[]

){

int len;

char *bytes;

Tcl_Obj *pRet;

assert(objc==2);

bytes = Tcl_GetStringFromObj(objv[1], &len);

pRet = Tcl_NewByteArrayObj((u8*)bytes, len+1);

Tcl_SetObjResult(interp, pRet);

return TCL_OK;

}

** Usage: test_value_overhead <repeat-count> <do-calls>.

** This routine is used to test the overhead of calls to

** sqlite3_value_text(), on a value that contains a UTF-8 string. The idea

** is to figure out whether or not it is a problem to use sqlite3_value

** structures with collation sequence functions.

** If <do-calls> is 0, then the calls to sqlite3_value_text() are not

** actually made.

static int SQLITE_TCLAPI test_value_overhead(

void * clientData,

Tcl_Interp *interp,

int objc,

Tcl_Obj *CONST objv[]

){

int do_calls;

int repeat_count;

int i;

Mem val;

if( objc!=3 ){

Tcl_AppendResult(interp, "wrong # args: should be \"",

Tcl_GetStringFromObj(objv[0], 0), " <repeat-count> <do-calls>", 0);

return TCL_ERROR;

}

if( Tcl_GetIntFromObj(interp, objv[1], &repeat_count) ) return TCL_ERROR;

if( Tcl_GetIntFromObj(interp, objv[2], &do_calls) ) return TCL_ERROR;

val.flags = MEM_Str|MEM_Term|MEM_Static;

val.z = "hello world";

val.enc = SQLITE_UTF8;

for(i=0; i<repeat_count; i++){

if( do_calls ){

sqlite3_value_text(&val);

}

return TCL_OK;

}

static u8 name_to_enc(Tcl_Interp *interp, Tcl_Obj *pObj){

struct EncName {

char *zName;

u8 enc;

} encnames[] = {

{ "UTF8", SQLITE_UTF8 },

{ "UTF16LE", SQLITE_UTF16LE },

{ "UTF16BE", SQLITE_UTF16BE },

{ "UTF16", SQLITE_UTF16 },

{ 0, 0 }

};

struct EncName *pEnc;

char *z = Tcl_GetString(pObj);

for(pEnc=&encnames[0]; pEnc->zName; pEnc++){

if( 0==sqlite3StrICmp(z, pEnc->zName) ){

break;

}

if( !pEnc->enc ){

Tcl_AppendResult(interp, "No such encoding: ", z, 0);

}

if( pEnc->enc==SQLITE_UTF16 ){

return SQLITE_UTF16NATIVE;

}

return pEnc->enc;

}

** Usage: test_translate <string/blob> <from enc> <to enc> ?<transient>?

static int SQLITE_TCLAPI test_translate(

void * clientData,

Tcl_Interp *interp,

int objc,

Tcl_Obj *CONST objv[]

){

u8 enc_from;

u8 enc_to;

sqlite3_value *pVal;

char *z;

int len;

void (*xDel)(void *p) = SQLITE_STATIC;

if( objc!=4 && objc!=5 ){

Tcl_AppendResult(interp, "wrong # args: should be \"",

Tcl_GetStringFromObj(objv[0], 0),

" <string/blob> <from enc> <to enc>", 0

);

return TCL_ERROR;

}

if( objc==5 ){

xDel = sqlite3_free;

}

enc_from = name_to_enc(interp, objv[2]);

if( !enc_from ) return TCL_ERROR;

enc_to = name_to_enc(interp, objv[3]);

if( !enc_to ) return TCL_ERROR;

pVal = sqlite3ValueNew(0);

if( enc_from==SQLITE_UTF8 ){

z = Tcl_GetString(objv[1]);

if( objc==5 ){

z = sqlite3_mprintf("%s", z);

}

sqlite3ValueSetStr(pVal, -1, z, enc_from, xDel);

}else{

z = (char*)Tcl_GetByteArrayFromObj(objv[1], &len);

if( objc==5 ){

char *zTmp = z;

z = sqlite3_malloc(len);

memcpy(z, zTmp, len);

}

sqlite3ValueSetStr(pVal, -1, z, enc_from, xDel);

}

z = (char *)sqlite3ValueText(pVal, enc_to);

len = sqlite3ValueBytes(pVal, enc_to) + (enc_to==SQLITE_UTF8?1:2);

Tcl_SetObjResult(interp, Tcl_NewByteArrayObj((u8*)z, len));

sqlite3ValueFree(pVal);

return TCL_OK;

}

** Usage: translate_selftest

** Call sqlite3UtfSelfTest() to run the internal tests for unicode

** translation. If there is a problem an assert() will fail.

**/

void sqlite3UtfSelfTest(void);

static int SQLITE_TCLAPI test_translate_selftest(

void * clientData,

Tcl_Interp *interp,

int objc,

Tcl_Obj *CONST objv[]

){

#ifndef SQLITE_OMIT_UTF16

sqlite3UtfSelfTest();

#endif

return SQLITE_OK;

}

** Register commands with the TCL interpreter.

int Sqlitetest5_Init(Tcl_Interp *interp){

static struct {

char *zName;

Tcl_ObjCmdProc *xProc;

} aCmd[] = {

{ "binarize", (Tcl_ObjCmdProc*)binarize },

{ "test_value_overhead", (Tcl_ObjCmdProc*)test_value_overhead },

{ "test_translate", (Tcl_ObjCmdProc*)test_translate },

{ "translate_selftest", (Tcl_ObjCmdProc*)test_translate_selftest},

};

int i;

for(i=0; i<sizeof(aCmd)/sizeof(aCmd[0]); i++){

Tcl_CreateObjCommand(interp, aCmd[i].zName, aCmd[i].xProc, 0, 0);

}

return SQLITE_OK;

}