SQLite

  return SQLITE_OK;
}

/*
** The set of routines that implement the simple tokenizer
*/
static const sqlite3_tokenizer_module icuTokenizerModule = {
  0,                           /* iVersion    */
  icuCreate,                   /* xCreate     */
  icuDestroy,                  /* xCreate     */
  icuOpen,                     /* xOpen       */
  icuClose,                    /* xClose      */
  icuNext,                     /* xNext       */
  0,                           /* xLanguageid */
};

/*
** Set *ppModule to point at the implementation of the ICU tokenizer.
*/
void sqlite3Fts3IcuTokenizerModule(
  sqlite3_tokenizer_module const**ppModule

  int prevEscape = 0;     /* True if the previous character was uEsc */

  while( zPattern[iPattern]!=0 ){

    /* Read (and consume) the next character from the input pattern. */
    UChar32 uPattern;
    U8_NEXT_UNSAFE(zPattern, iPattern, uPattern);


    /* There are now 4 possibilities:
    **
    **     1. uPattern is an unescaped match-all character "%",
    **     2. uPattern is an unescaped match-one character "_",
    **     3. uPattern is an unescaped escape character, or
    **     4. uPattern is to be handled as an ordinary character

  UErrorCode status = U_ZERO_ERROR;
  const char *zLocale;      /* Locale identifier - (eg. "jp_JP") */
  const char *zName;        /* SQL Collation sequence name (eg. "japanese") */
  UCollator *pUCollator;    /* ICU library collation object */
  int rc;                   /* Return code from sqlite3_create_collation_x() */

  assert(nArg==2);
  (void)nArg; /* Unused parameter */
  zLocale = (const char *)sqlite3_value_text(apArg[0]);
  zName = (const char *)sqlite3_value_text(apArg[1]);

  if( !zLocale || !zName ){
    return;
  }

  sqlite3_load_extension,
  sqlite3_malloc64,
  sqlite3_msize,
  sqlite3_realloc64,
  sqlite3_reset_auto_extension,
  sqlite3_result_blob64,
  sqlite3_result_text64,
  sqlite3_strglob,
  /* Version 3.8.11 and later */
  (sqlite3_value*(*)(const sqlite3_value*))sqlite3_value_dup,
  sqlite3_value_free
};

/*
** Attempt to load an SQLite extension library contained in the file
** zFile.  The entry point is zProc.  zProc may be 0 in which case a
** default entry point name (sqlite3_extension_init) is used.  Use
** of the default name is recommended.

#if SQLITE_TEMP_STORE==1
  return ( db->temp_store==2 );
#endif
#if SQLITE_TEMP_STORE==2
  return ( db->temp_store!=1 );
#endif
#if SQLITE_TEMP_STORE==3
  UNUSED_PARAMETER(db);
  return 1;
#endif
#if SQLITE_TEMP_STORE<1 || SQLITE_TEMP_STORE>3
  UNUSED_PARAMETER(db);
  return 0;
#endif
}

/*
** Return UTF-8 encoded English language explanation of the most recent
** error.

}

/*
** Interface to the testing logic.
*/
int sqlite3_test_control(int op, ...){
  int rc = 0;
#ifdef SQLITE_OMIT_BUILTIN_TEST
  UNUSED_PARAMETER(op);
#else
  va_list ap;
  va_start(ap, op);
  switch( op ){

    /*
    ** Save the current state of the PRNG.
    */

    sqlite3_mutex_methods *pTo = &sqlite3GlobalConfig.mutex;

    if( sqlite3GlobalConfig.bCoreMutex ){
      pFrom = sqlite3DefaultMutex();
    }else{
      pFrom = sqlite3NoopMutex();
    }
    pTo->xMutexInit = pFrom->xMutexInit;
    pTo->xMutexEnd = pFrom->xMutexEnd;
    pTo->xMutexFree = pFrom->xMutexFree;
    pTo->xMutexEnter = pFrom->xMutexEnter;
    pTo->xMutexTry = pFrom->xMutexTry;
    pTo->xMutexLeave = pFrom->xMutexLeave;
    pTo->xMutexHeld = pFrom->xMutexHeld;
    pTo->xMutexNotheld = pFrom->xMutexNotheld;
    pTo->xMutexAlloc = pFrom->xMutexAlloc;
  }
  rc = sqlite3GlobalConfig.mutex.xMutexInit();

#ifdef SQLITE_DEBUG
  GLOBAL(int, mutexIsInit) = 1;
#endif

    }
  }

  /* Step 5. If a usable page buffer has still not been found, 
  ** attempt to allocate a new one. 
  */
  if( !pPage ){
    if( createFlag==1 ){ sqlite3BeginBenignMalloc(); }
    pPage = pcache1AllocPage(pCache);
    if( createFlag==1 ){ sqlite3EndBenignMalloc(); }
  }

  if( pPage ){
    unsigned int h = iKey % pCache->nHash;
    pCache->nPage++;
    pPage->iKey = iKey;
    pPage->pNext = pCache->apHash[h];

/*
** Display scan stats.
*/
static void display_scanstats(
  sqlite3 *db,                    /* Database to query */
  ShellState *pArg                /* Pointer to ShellState */
){
#ifndef SQLITE_ENABLE_STMT_SCANSTATUS
  UNUSED_PARAMETER(db);
  UNUSED_PARAMETER(pArg);
#else
  int i, k, n, mx;
  fprintf(pArg->out, "-------- scanstats --------\n");
  mx = 0;
  for(k=0; k<=mx; k++){
    double rEstLoop = 1.0;
    for(i=n=0; 1; i++){
      sqlite3_stmt *p = pArg->pStmt;

  sqlite3_value **argv
){
  const char *zName;
  FILE *in;
  long nIn;
  void *pBuf;

  UNUSED_PARAMETER(argc);
  zName = (const char*)sqlite3_value_text(argv[0]);
  if( zName==0 ) return;
  in = fopen(zName, "rb");
  if( in==0 ) return;
  fseek(in, 0, SEEK_END);
  nIn = ftell(in);
  rewind(in);

  sqlite3_value **argv
){
  FILE *out;
  const char *z;
  sqlite3_int64 rc;
  const char *zFile;

  UNUSED_PARAMETER(argc);
  zFile = (const char*)sqlite3_value_text(argv[0]);
  if( zFile==0 ) return;
  out = fopen(zFile, "wb");
  if( out==0 ) return;
  z = (const char*)sqlite3_value_blob(argv[1]);
  if( z==0 ){
    rc = 0;

  }
  i = get2byteInt(aHdr+16);
  if( i==1 ) i = 65536;
  fprintf(p->out, "%-20s %d\n", "database page size:", i);
  fprintf(p->out, "%-20s %d\n", "write format:", aHdr[18]);
  fprintf(p->out, "%-20s %d\n", "read format:", aHdr[19]);
  fprintf(p->out, "%-20s %d\n", "reserved bytes:", aHdr[20]);
  for(i=0; i<ArraySize(aField); i++){
    int ofst = aField[i].ofst;
    unsigned int val = get4byteInt(aHdr + ofst);
    fprintf(p->out, "%-20s %u", aField[i].zName, val);
    switch( ofst ){
      case 56: {
        if( val==1 ) fprintf(p->out, " (utf8)"); 
        if( val==2 ) fprintf(p->out, " (utf16le)"); 
        if( val==3 ) fprintf(p->out, " (utf16be)"); 
      }
    }
    fprintf(p->out, "\n");
  }
  if( zDb==0 ){
    zSchemaTab = sqlite3_mprintf("main.sqlite_master");
  }else if( strcmp(zDb,"temp")==0 ){
    zSchemaTab = sqlite3_mprintf("%s", "sqlite_temp_master");
  }else{
    zSchemaTab = sqlite3_mprintf("\"%w\".sqlite_master", zDb);
  }
  for(i=0; i<ArraySize(aQuery); i++){
    char *zSql = sqlite3_mprintf(aQuery[i].zSql, zSchemaTab);
    int val = db_int(p, zSql);
    sqlite3_free(zSql);
    fprintf(p->out, "%-20s %d\n", aQuery[i].zName, val);
  }
  sqlite3_free(zSchemaTab);
  return 0;

      { "variable_number",       SQLITE_LIMIT_VARIABLE_NUMBER           },
      { "trigger_depth",         SQLITE_LIMIT_TRIGGER_DEPTH             },
      { "worker_threads",        SQLITE_LIMIT_WORKER_THREADS            },
    };
    int i, n2;
    open_db(p, 0);
    if( nArg==1 ){
      for(i=0; i<ArraySize(aLimit); i++){
        printf("%20s %d\n", aLimit[i].zLimitName, 
               sqlite3_limit(p->db, aLimit[i].limitCode, -1));
      }
    }else if( nArg>3 ){
      fprintf(stderr, "Usage: .limit NAME ?NEW-VALUE?\n");
      rc = 1;
      goto meta_command_exit;
    }else{
      int iLimit = -1;
      n2 = strlen30(azArg[1]);
      for(i=0; i<ArraySize(aLimit); i++){
        if( sqlite3_strnicmp(aLimit[i].zLimitName, azArg[1], n2)==0 ){
          if( iLimit<0 ){
            iLimit = i;
          }else{
            fprintf(stderr, "ambiguous limit: \"%s\"\n", azArg[1]);
            rc = 1;
            goto meta_command_exit;

    int rc2 = 0;
    int i, n2;
    open_db(p, 0);

    /* convert testctrl text option to value. allow any unique prefix
    ** of the option name, or a numerical value. */
    n2 = strlen30(azArg[1]);
    for(i=0; i<ArraySize(aCtrl); i++){
      if( strncmp(azArg[1], aCtrl[i].zCtrlName, n2)==0 ){
        if( testctrl<0 ){
          testctrl = aCtrl[i].ctrlCode;
        }else{
          fprintf(stderr, "ambiguous option name: \"%s\"\n", azArg[1]);
          testctrl = -1;
          break;

      zHome = find_home_dir();
      if( zHome ){
        nHistory = strlen30(zHome) + 20;
        if( (zHistory = malloc(nHistory))!=0 ){
          sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
        }
      }
      if( zHistory ){ shell_read_history(zHistory); }
      rc = process_input(&data, 0);
      if( zHistory ){
        shell_stifle_history(100);
        shell_write_history(zHistory);
        free(zHistory);
      }
    }else{

  void *(*realloc64)(void*,sqlite3_uint64);
  void (*reset_auto_extension)(void);
  void (*result_blob64)(sqlite3_context*,const void*,sqlite3_uint64,
                        void(*)(void*));
  void (*result_text64)(sqlite3_context*,const char*,sqlite3_uint64,
                         void(*)(void*), unsigned char);
  int (*strglob)(const char*,const char*);
  /* Version 3.8.11 and later */
  sqlite3_value *(*value_dup)(const sqlite3_value*);
  void (*value_free)(sqlite3_value*);
};

/*
** The following macros redefine the API routines so that they are
** redirected through the global sqlite3_api structure.
**

# define sqlite3Isspace(x)   isspace((unsigned char)(x))
# define sqlite3Isalnum(x)   isalnum((unsigned char)(x))
# define sqlite3Isalpha(x)   isalpha((unsigned char)(x))
# define sqlite3Isdigit(x)   isdigit((unsigned char)(x))
# define sqlite3Isxdigit(x)  isxdigit((unsigned char)(x))
# define sqlite3Tolower(x)   tolower((unsigned char)(x))
#endif
#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
int sqlite3IsIdChar(u8);
#endif

/*
** Internal function prototypes
*/
#define sqlite3StrICmp sqlite3_stricmp
int sqlite3Strlen30(const char*);
#define sqlite3StrNICmp sqlite3_strnicmp

int sqlite3MallocSize(void*);
int sqlite3DbMallocSize(sqlite3*, void*);
void *sqlite3ScratchMalloc(int);
void sqlite3ScratchFree(void*);
void *sqlite3PageMalloc(int);
void sqlite3PageFree(void*);
void sqlite3MemSetDefault(void);
#ifndef SQLITE_OMIT_BUILTIN_TEST
void sqlite3BenignMallocHooks(void (*)(void), void (*)(void));
#endif
int sqlite3HeapNearlyFull(void);

/*
** On systems with ample stack space and that support alloca(), make
** use of alloca() to obtain space for large automatic objects.  By default,
** obtain space from malloc().
**

Bitvec *sqlite3BitvecCreate(u32);
int sqlite3BitvecTest(Bitvec*, u32);
int sqlite3BitvecSet(Bitvec*, u32);
void sqlite3BitvecClear(Bitvec*, u32, void*);
void sqlite3BitvecDestroy(Bitvec*);
u32 sqlite3BitvecSize(Bitvec*);
#ifndef SQLITE_OMIT_BUILTIN_TEST
int sqlite3BitvecBuiltinTest(int,int*);
#endif

RowSet *sqlite3RowSetInit(sqlite3*, void*, unsigned int);
void sqlite3RowSetClear(RowSet*);
void sqlite3RowSetInsert(RowSet*, i64);
int sqlite3RowSetTest(RowSet*, int iBatch, i64);
int sqlite3RowSetNext(RowSet*, i64*);

int sqlite3ExprCompare(Expr*, Expr*, int);
int sqlite3ExprListCompare(ExprList*, ExprList*, int);
int sqlite3ExprImpliesExpr(Expr*, Expr*, int);
void sqlite3ExprAnalyzeAggregates(NameContext*, Expr*);
void sqlite3ExprAnalyzeAggList(NameContext*,ExprList*);
int sqlite3FunctionUsesThisSrc(Expr*, SrcList*);
Vdbe *sqlite3GetVdbe(Parse*);
#ifndef SQLITE_OMIT_BUILTIN_TEST
void sqlite3PrngSaveState(void);
void sqlite3PrngRestoreState(void);
#endif
void sqlite3RollbackAll(sqlite3*,int);
void sqlite3CodeVerifySchema(Parse*, int);
void sqlite3CodeVerifyNamedSchema(Parse*, const char *zDb);
void sqlite3BeginTransaction(Parse*, int);
void sqlite3CommitTransaction(Parse*);
void sqlite3RollbackTransaction(Parse*);
void sqlite3Savepoint(Parse*, int, Token*);

    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1,  /* Cx */
    0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1,  /* Dx */
    0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1,  /* Ex */
    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0,  /* Fx */
};
#define IdChar(C)  (((c=C)>=0x42 && sqlite3IsEbcdicIdChar[c-0x40]))
#endif

/* Make the IdChar function accessible from ctime.c */
#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
int sqlite3IsIdChar(u8 c){ return IdChar(c); }
#endif


/*
** Return the length of the token that begins at z[0]. 
** Store the token type in *tokenType before returning.
*/
int sqlite3GetToken(const unsigned char *z, int *tokenType){

#/bin/sh
#
# Run this script in a directory with a working makefile to check for 
# compiler warnings in SQLite.
#
rm -f sqlite3.c
make sqlite3.c
echo '********** No optimizations.  Includes FTS4 and RTREE *********'
gcc -c -Wshadow -Wall -Wextra -pedantic-errors -Wno-long-long -std=c89 \
      -ansi -DHAVE_STDINT_H -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_RTREE \
      sqlite3.c
echo '********** Android configuration ******************************'
gcc -c \
  -DHAVE_USLEEP=1 \
  -DSQLITE_HAVE_ISNAN \
  -DSQLITE_DEFAULT_JOURNAL_SIZE_LIMIT=1048576 \
  -DSQLITE_THREADSAFE=2 \
  -DSQLITE_TEMP_STORE=3 \
  -DSQLITE_POWERSAFE_OVERWRITE=1 \
  -DSQLITE_DEFAULT_FILE_FORMAT=4 \
  -DSQLITE_DEFAULT_AUTOVACUUM=1 \
  -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1 \
  -DSQLITE_ENABLE_FTS3 \
  -DSQLITE_ENABLE_FTS3_BACKWARDS \
  -DSQLITE_ENABLE_FTS4 \
  -DSQLITE_OMIT_BUILTIN_TEST \
  -DSQLITE_OMIT_COMPILEOPTION_DIAGS \
  -DSQLITE_OMIT_LOAD_EXTENSION \
  -DSQLITE_DEFAULT_FILE_PERMISSIONS=0600 \
  -DSQLITE_ENABLE_ICU \
  -DUSE_PREAD64 \
  -Wshadow -Wall -Wextra \
  -Os sqlite3.c shell.c
echo '********** No optimizations. ENABLE_STAT4. THREADSAFE=0 *******'
gcc -c -Wshadow -Wall -Wextra -pedantic-errors -Wno-long-long -std=c89 \
      -ansi -DSQLITE_ENABLE_STAT4 -DSQLITE_THREADSAFE=0 \
      sqlite3.c
echo '********** Optimized -O3.  Includes FTS4 and RTREE ************'
gcc -O3 -c -Wshadow -Wall -Wextra -pedantic-errors -Wno-long-long -std=c89 \
      -ansi -DHAVE_STDINT_H -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_RTREE \