SQLite

#!/usr/bin/awk -f
#
# This AWK script scans the opcodes.h file (which is itself generated by
# another awk script) and uses the information gleaned to create the
# opcodes.c source file.
#
# Opcodes.c contains strings which are the symbolic names for the various
# opcodes used by the VDBE.  These strings are used when disassembling a
# VDBE program during tracing or as a result of the EXPLAIN keyword.
#
BEGIN {
  print "/* Automatically generated.  Do not edit */"
  print "/* See the mkopcodec.h script for details. */"
  print "const char *const sqlite3OpcodeNames[] = { \"?\","
}
/^#define OP_/ {
  sub("OP_","",$2)
  print "  \"" $2 "\","
}
END {
  print "};"

**     DROP INDEX
**     creating ID lists
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**     PRAGMA
**
** $Id: build.c,v 1.257 2004/10/06 15:41:16 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Check to see if the schema for the database needs

/*
** Scan the column type name zType (length nType) and return the
** associated affinity type.
*/
char sqlite3AffinityType(const char *zType, int nType){
  int n, i;
  static const struct {
    const char *zSub;  /* Keywords substring to search for */
    char nSub;         /* length of zSub */
    char affinity;     /* Affinity to return if it matches */
  } substrings[] = {
    {"INT",  3, SQLITE_AFF_INTEGER},
    {"CHAR", 4, SQLITE_AFF_TEXT},
    {"CLOB", 4, SQLITE_AFF_TEXT},

  }

  /* Generate code to remove the table from the master table
  ** on disk.
  */
  v = sqlite3GetVdbe(pParse);
  if( v ){
    static const VdbeOpList dropTable[] = {
      { OP_Rewind,     0, ADDR(13), 0},
      { OP_String8,    0, 0,        0}, /* 1 */
      { OP_MemStore,   1, 1,        0},
      { OP_MemLoad,    1, 0,        0}, /* 3 */
      { OP_Column,     0, 2,        0}, /* sqlite_master.tbl_name */
      { OP_Ne,         0, ADDR(12), 0},
      { OP_String8,    0, 0,        "trigger"},

    }
  }
#endif

  /* Generate code to remove the index and from the master table */
  v = sqlite3GetVdbe(pParse);
  if( v ){
    static const VdbeOpList dropIndex[] = {
      { OP_Rewind,     0, ADDR(9), 0}, 
      { OP_String8,    0, 0,       0}, /* 1 */
      { OP_MemStore,   1, 1,       0},
      { OP_MemLoad,    1, 0,       0}, /* 3 */
      { OP_Column,     0, 1,       0},
      { OP_Eq,         0, ADDR(8), 0},
      { OP_Next,       0, ADDR(3), 0},

** This file contains the C functions that implement date and time
** functions for SQLite.  
**
** There is only one exported symbol in this file - the function
** sqlite3RegisterDateTimeFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: date.c,v 1.37 2004/10/06 15:41:16 drh Exp $
**
** NOTES:
**
** SQLite processes all times and dates as Julian Day numbers.  The
** dates and times are stored as the number of days since noon
** in Greenwich on November 24, 4714 B.C. according to the Gregorian
** calendar system.

/*
** This function registered all of the above C functions as SQL
** functions.  This should be the only routine in this file with
** external linkage.
*/
void sqlite3RegisterDateTimeFunctions(sqlite3 *db){
#ifndef SQLITE_OMIT_DATETIME_FUNCS
  static const struct {
     char *zName;
     int nArg;
     void (*xFunc)(sqlite3_context*,int,sqlite3_value**);
  } aFuncs[] = {
    { "julianday", -1, juliandayFunc   },
    { "date",      -1, dateFunc        },
    { "time",      -1, timeFunc        },

** This file contains the C functions that implement various SQL
** functions of SQLite.  
**
** There is only one exported symbol in this file - the function
** sqliteRegisterBuildinFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: func.c,v 1.85 2004/10/06 15:41:17 drh Exp $
*/
#include <ctype.h>
#include <math.h>
#include <stdlib.h>
#include <assert.h>
#include "sqliteInt.h"
#include "vdbeInt.h"

/*
** This function registered all of the above C functions as SQL
** functions.  This should be the only routine in this file with
** external linkage.
*/
void sqlite3RegisterBuiltinFunctions(sqlite3 *db){
  static const struct {
     char *zName;
     signed char nArg;
     u8 argType;           /* 0: none.  1: db  2: (-1) */
     u8 eTextRep;          /* 1: UTF-16.  0: UTF-8 */
     u8 needCollSeq;
     void (*xFunc)(sqlite3_context*,int,sqlite3_value **);
  } aFuncs[] = {

#ifdef SQLITE_TEST
    { "randstr",               2, 0, SQLITE_UTF8, 0, randStr    },
    { "test_destructor",       1, 1, SQLITE_UTF8, 0, test_destructor},
    { "test_destructor_count", 0, 0, SQLITE_UTF8, 0, test_destructor_count},
    { "test_auxdata",         -1, 0, SQLITE_UTF8, 0, test_auxdata},
#endif
  };
  static const struct {
    char *zName;
    signed char nArg;
    u8 argType;
    u8 needCollSeq;
    void (*xStep)(sqlite3_context*,int,sqlite3_value**);
    void (*xFinalize)(sqlite3_context*);
  } aAggs[] = {

**
*************************************************************************
** Main file for the SQLite library.  The routines in this file
** implement the programmer interface to the library.  Routines in
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.263 2004/10/06 15:41:17 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>

/*
** The following constant value is used by the SQLITE_BIGENDIAN and

  InitData initData;
  char const *zMasterSchema;
  char const *zMasterName;

  /*
  ** The master database table has a structure like this
  */
  static const char master_schema[] = 
     "CREATE TABLE sqlite_master(\n"
     "  type text,\n"
     "  name text,\n"
     "  tbl_name text,\n"
     "  rootpage integer,\n"
     "  sql text\n"
     ")"
  ;
  static const char temp_master_schema[] = 
     "CREATE TEMP TABLE sqlite_temp_master(\n"
     "  type text,\n"
     "  name text,\n"
     "  tbl_name text,\n"
     "  rootpage integer,\n"
     "  sql text\n"
     ")"

*/
const void *sqlite3_errmsg16(sqlite3 *db){
  /* Because all the characters in the string are in the unicode
  ** range 0x00-0xFF, if we pad the big-endian string with a 
  ** zero byte, we can obtain the little-endian string with
  ** &big_endian[1].
  */
  static const char outOfMemBe[] = {
    0, 'o', 0, 'u', 0, 't', 0, ' ', 
    0, 'o', 0, 'f', 0, ' ', 
    0, 'm', 0, 'e', 0, 'm', 0, 'o', 0, 'r', 0, 'y', 0, 0, 0
  };
  static const char misuseBe [] = {
    0, 'l', 0, 'i', 0, 'b', 0, 'r', 0, 'a', 0, 'r', 0, 'y', 0, ' ', 
    0, 'r', 0, 'o', 0, 'u', 0, 't', 0, 'i', 0, 'n', 0, 'e', 0, ' ', 
    0, 'c', 0, 'a', 0, 'l', 0, 'l', 0, 'e', 0, 'd', 0, ' ', 
    0, 'o', 0, 'u', 0, 't', 0, ' ', 
    0, 'o', 0, 'f', 0, ' ', 
    0, 's', 0, 'e', 0, 'q', 0, 'u', 0, 'e', 0, 'n', 0, 'c', 0, 'e', 0, 0, 0
  };

  static const char *azDirs[] = {
     0,
     "/var/tmp",
     "/usr/tmp",
     "/tmp",
     ".",
  };
  static const unsigned char zChars[] =
    "abcdefghijklmnopqrstuvwxyz"
    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    "0123456789";
  int i, j;
  struct stat buf;
  const char *zDir = ".";
  azDirs[0] = sqlite3_temp_directory;

/*
** 2003 April 6
**
** 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 code used to implement the PRAGMA command.
**
** $Id: pragma.c,v 1.70 2004/10/06 15:41:17 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
# include "pager.h"
# include "btree.h"

  ** The default cache size is stored in meta-value 2 of page 1 of the
  ** database file.  The cache size is actually the absolute value of
  ** this memory location.  The sign of meta-value 2 determines the
  ** synchronous setting.  A negative value means synchronous is off
  ** and a positive value means synchronous is on.
  */
  if( sqlite3StrICmp(zLeft,"default_cache_size")==0 ){
    static const VdbeOpList getCacheSize[] = {
      { OP_ReadCookie,  0, 2,        0},  /* 0 */
      { OP_AbsValue,    0, 0,        0},
      { OP_Dup,         0, 0,        0},
      { OP_Integer,     0, 0,        0},
      { OP_Ne,          0, 6,        0},
      { OP_Integer,     0, 0,        0},  /* 5 */
      { OP_Callback,    1, 0,        0},

  if( sqlite3StrICmp(zLeft, "integrity_check")==0 ){
    int i, j, addr;

    /* Code that initializes the integrity check program.  Set the
    ** error count 0
    */
    static const VdbeOpList initCode[] = {
      { OP_Integer,     0, 0,        0},
      { OP_MemStore,    0, 1,        0},
    };

    /* Code that appears at the end of the integrity check.  If no error
    ** messages have been generated, output OK.  Otherwise output the
    ** error message
    */
    static const VdbeOpList endCode[] = {
      { OP_MemLoad,     0, 0,        0},
      { OP_Integer,     0, 0,        0},
      { OP_Ne,          0, 0,        0},    /* 2 */
      { OP_String8,     0, 0,        "ok"},
      { OP_Callback,    1, 0,        0},
    };

        sqlite3OpenTableAndIndices(pParse, pTab, 1, OP_OpenRead);
        sqlite3VdbeAddOp(v, OP_Integer, 0, 0);
        sqlite3VdbeAddOp(v, OP_MemStore, 1, 1);
        loopTop = sqlite3VdbeAddOp(v, OP_Rewind, 1, 0);
        sqlite3VdbeAddOp(v, OP_MemIncr, 1, 0);
        for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
          int jmp2;
          static const VdbeOpList idxErr[] = {
            { OP_MemIncr,     0,  0,  0},
            { OP_String8,     0,  0,  "rowid "},
            { OP_Recno,       1,  0,  0},
            { OP_String8,     0,  0,  " missing from index "},
            { OP_String8,     0,  0,  0},    /* 4 */
            { OP_Concat,      2,  0,  0},
            { OP_Callback,    1,  0,  0},
          };
          sqlite3GenerateIndexKey(v, pIdx, 1);
          jmp2 = sqlite3VdbeAddOp(v, OP_Found, j+2, 0);
          addr = sqlite3VdbeAddOpList(v, ArraySize(idxErr), idxErr);
          sqlite3VdbeChangeP3(v, addr+4, pIdx->zName, P3_STATIC);
          sqlite3VdbeChangeP2(v, jmp2, sqlite3VdbeCurrentAddr(v));
        }
        sqlite3VdbeAddOp(v, OP_Next, 1, loopTop+1);
        sqlite3VdbeChangeP2(v, loopTop, sqlite3VdbeCurrentAddr(v));
        for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
          static const VdbeOpList cntIdx[] = {
             { OP_Integer,      0,  0,  0},
             { OP_MemStore,     2,  1,  0},
             { OP_Rewind,       0,  0,  0},  /* 2 */
             { OP_MemIncr,      2,  0,  0},
             { OP_Next,         0,  0,  0},  /* 4 */
             { OP_MemLoad,      1,  0,  0},
             { OP_MemLoad,      2,  0,  0},

  ** is executed, this is done before the ATTACH operation.
  **
  ** In the second form this pragma sets the text encoding to be used in
  ** new database files created using this database handle. It is only
  ** useful if invoked immediately after the main database i
  */
  if( sqlite3StrICmp(zLeft, "encoding")==0 ){
    static struct EncName {
      char *zName;
      u8 enc;
    } encnames[] = {
      { "UTF-8",    SQLITE_UTF8        },
      { "UTF8",     SQLITE_UTF8        },
      { "UTF-16le", SQLITE_UTF16LE     },
      { "UTF16le",  SQLITE_UTF16LE     },

  }else

#if defined(SQLITE_DEBUG) || defined(SQLITE_TEST)
  /*
  ** Report the current state of file logs for all databases
  */
  if( sqlite3StrICmp(zLeft, "lock_status")==0 ){
    static const char *const azLockName[] = {
      "unlocked", "shared", "reserved", "pending", "exclusive"
    };
    int i;
    Vdbe *v = sqlite3GetVdbe(pParse);
    sqlite3VdbeSetNumCols(v, 2);
    sqlite3VdbeSetColName(v, 0, "database", P3_STATIC);
    sqlite3VdbeSetColName(v, 1, "status", P3_STATIC);

/*
** The following table is searched linearly, so it is good to put the
** most frequently used conversion types first.
*/
static const char aDigits[] = "0123456789ABCDEF0123456789abcdef";
static const char aPrefix[] = "-x0\000X0";
static const et_info fmtinfo[] = {
  {  'd', 10, 1, etRADIX,      0,  0 },
  {  's',  0, 0, etSTRING,     0,  0 },
  {  'z',  0, 2, etDYNSTRING,  0,  0 },
  {  'q',  0, 0, etSQLESCAPE,  0,  0 },
  {  'Q',  0, 0, etSQLESCAPE2, 0,  0 },
  {  'c',  0, 0, etCHARX,      0,  0 },
  {  'o',  8, 0, etRADIX,      0,  2 },

  etByte flag_blanksign;     /* True if " " flag is present */
  etByte flag_alternateform; /* True if "#" flag is present */
  etByte flag_zeropad;       /* True if field width constant starts with zero */
  etByte flag_long;          /* True if "l" flag is present */
  etByte flag_longlong;      /* True if the "ll" flag is present */
  UINT64_TYPE longvalue;     /* Value for integer types */
  LONGDOUBLE_TYPE realvalue; /* Value for real types */
  const et_info *infop;      /* Pointer to the appropriate info structure */
  char buf[etBUFSIZE];       /* Conversion buffer */
  char prefix;               /* Prefix character.  "+" or "-" or " " or '\0'. */
  etByte errorflag = 0;      /* True if an error is encountered */
  etByte xtype;              /* Conversion paradigm */
  char *zExtra;              /* Extra memory used for etTCLESCAPE conversions */
  static const char spaces[] =
   "                                                                         ";
#define etSPACESIZE (sizeof(spaces)-1)
#ifndef etNOFLOATINGPOINT
  int  exp;                  /* exponent of real numbers */
  double rounder;            /* Used for rounding floating point values */
  etByte flag_dp;            /* True if decimal point should be shown */
  etByte flag_rtz;           /* True if trailing zeros should be removed */
  etByte flag_exp;           /* True to force display of the exponent */

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.212 2004/10/06 15:41:17 drh Exp $
*/
#include "sqliteInt.h"


/*
** Allocate a new Select structure and return a pointer to that
** structure.

** If an illegal or unsupported join type is seen, then still return
** a join type, but put an error in the pParse structure.
*/
int sqlite3JoinType(Parse *pParse, Token *pA, Token *pB, Token *pC){
  int jointype = 0;
  Token *apAll[3];
  Token *p;
  static const struct {
    const char *zKeyword;
    u8 nChar;
    u8 code;
  } keywords[] = {
    { "natural", 7, JT_NATURAL },
    { "left",    4, JT_LEFT|JT_OUTER },
    { "right",   5, JT_RIGHT|JT_OUTER },

    goto triggerfinish_cleanup;
  }

  /* if we are not initializing, and this trigger is not on a TEMP table, 
  ** build the sqlite_master entry
  */
  if( !db->init.busy ){
    static const VdbeOpList insertTrig[] = {
      { OP_NewRecno,   0, 0,  0          },
      { OP_String8,    0, 0,  "trigger"  },
      { OP_String8,    0, 0,  0          },  /* 2: trigger name */
      { OP_String8,    0, 0,  0          },  /* 3: table name */
      { OP_Integer,    0, 0,  0          },
      { OP_String8,    0, 0,  "CREATE TRIGGER "},
      { OP_String8,    0, 0,  0          },  /* 6: SQL */

  }
#endif

  /* Generate code to destroy the database record of the trigger.
  */
  if( pTable!=0 && (v = sqlite3GetVdbe(pParse))!=0 ){
    int base;
    static const VdbeOpList dropTrigger[] = {
      { OP_Rewind,     0, ADDR(9),  0},
      { OP_String8,    0, 0,        0}, /* 1 */
      { OP_Column,     0, 1,        0},
      { OP_Ne,         0, ADDR(8),  0},
      { OP_String8,    0, 0,        "trigger"},
      { OP_Column,     0, 0,        0},
      { OP_Ne,         0, ADDR(8),  0},
      { OP_Delete,     0, 0,        0},
      { OP_Next,       0, ADDR(1),  0}, /* 8 */
    };

    sqlite3BeginWriteOperation(pParse, 0, iDb);

**
** Various scripts scan this source file in order to generate HTML
** documentation, headers files, or other derived files.  The formatting
** of the code in this file is, therefore, important.  See other comments
** in this file for details.  If in doubt, do not deviate from existing
** commenting and indentation practices when changing or adding code.
**
** $Id: vdbe.c,v 1.418 2004/10/06 15:41:17 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include "vdbeInt.h"

/*

** Write a nice string representation of the contents of cell pMem
** into buffer zBuf, length nBuf.
*/
void sqlite3VdbeMemPrettyPrint(Mem *pMem, char *zBuf, int nBuf){
  char *zCsr = zBuf;
  int f = pMem->flags;

  static const char *const encnames[] = {"(X)", "(8)", "(16LE)", "(16BE)"};

  if( f&MEM_Blob ){
    int i;
    char c;
    if( f & MEM_Dyn ){
      c = 'z';
      assert( (f & (MEM_Static|MEM_Ephem))==0 );

/*
** Return the length of the data corresponding to the supplied serial-type.
*/
int sqlite3VdbeSerialTypeLen(u32 serial_type){
  if( serial_type>=12 ){
    return (serial_type-12)/2;
  }else{
    static const u8 aSize[] = { 0, 1, 2, 3, 4, 6, 8, 8, 0, 0, 0, 0 };
    return aSize[serial_type];
  }
}

/*
** Write the serialized data blob for the value stored in pMem into 
** buf. It is assumed that the caller has allocated sufficient space.

      if( stp->iNtOfst<mnNtOfst ) mnNtOfst = stp->iNtOfst;
      if( stp->iNtOfst>mxNtOfst ) mxNtOfst = stp->iNtOfst;
    }
  }
  free(ax);

  /* Output the yy_action table */
  fprintf(out,"static const YYACTIONTYPE yy_action[] = {\n"); lineno++;
  n = acttab_size(pActtab);
  for(i=j=0; i<n; i++){
    int action = acttab_yyaction(pActtab, i);
    if( action<0 ) action = lemp->nsymbol + lemp->nrule + 2;
    if( j==0 ) fprintf(out," /* %5d */ ", i);
    fprintf(out, " %4d,", action);
    if( j==9 || i==n-1 ){
      fprintf(out, "\n"); lineno++;
      j = 0;
    }else{
      j++;
    }
  }
  fprintf(out, "};\n"); lineno++;

  /* Output the yy_lookahead table */
  fprintf(out,"static const YYCODETYPE yy_lookahead[] = {\n"); lineno++;
  for(i=j=0; i<n; i++){
    int la = acttab_yylookahead(pActtab, i);
    if( la<0 ) la = lemp->nsymbol;
    if( j==0 ) fprintf(out," /* %5d */ ", i);
    fprintf(out, " %4d,", la);
    if( j==9 || i==n-1 ){
      fprintf(out, "\n"); lineno++;
      j = 0;
    }else{
      j++;
    }
  }
  fprintf(out, "};\n"); lineno++;

  /* Output the yy_shift_ofst[] table */
  fprintf(out, "#define YY_SHIFT_USE_DFLT (%d)\n", mnTknOfst-1); lineno++;
  fprintf(out, "static const %s yy_shift_ofst[] = {\n", 
          minimum_size_type(mnTknOfst-1, mxTknOfst)); lineno++;
  n = lemp->nstate;
  for(i=j=0; i<n; i++){
    int ofst;
    stp = lemp->sorted[i];
    ofst = stp->iTknOfst;
    if( ofst==NO_OFFSET ) ofst = mnTknOfst - 1;
    if( j==0 ) fprintf(out," /* %5d */ ", i);
    fprintf(out, " %4d,", ofst);
    if( j==9 || i==n-1 ){
      fprintf(out, "\n"); lineno++;
      j = 0;
    }else{
      j++;
    }
  }
  fprintf(out, "};\n"); lineno++;

  /* Output the yy_reduce_ofst[] table */
  fprintf(out, "#define YY_REDUCE_USE_DFLT (%d)\n", mnNtOfst-1); lineno++;
  fprintf(out, "static const %s yy_reduce_ofst[] = {\n", 
          minimum_size_type(mnNtOfst-1, mxNtOfst)); lineno++;
  n = lemp->nstate;
  for(i=j=0; i<n; i++){
    int ofst;
    stp = lemp->sorted[i];
    ofst = stp->iNtOfst;
    if( ofst==NO_OFFSET ) ofst = mnNtOfst - 1;
    if( j==0 ) fprintf(out," /* %5d */ ", i);
    fprintf(out, " %4d,", ofst);
    if( j==9 || i==n-1 ){
      fprintf(out, "\n"); lineno++;
      j = 0;
    }else{
      j++;
    }
  }
  fprintf(out, "};\n"); lineno++;

  /* Output the default action table */
  fprintf(out, "static const YYACTIONTYPE yy_default[] = {\n"); lineno++;
  n = lemp->nstate;
  for(i=j=0; i<n; i++){
    stp = lemp->sorted[i];
    if( j==0 ) fprintf(out," /* %5d */ ", i);
    fprintf(out, " %4d,", stp->iDflt);
    if( j==9 || i==n-1 ){
      fprintf(out, "\n"); lineno++;

  else if( yyTracePrompt==0 ) yyTraceFILE = 0;
}
#endif /* NDEBUG */

#ifndef NDEBUG
/* For tracing shifts, the names of all terminals and nonterminals
** are required.  The following table supplies these names */
static const char *const yyTokenName[] = { 
%%
};
#endif /* NDEBUG */

#ifndef NDEBUG
/* For tracing reduce actions, the names of all rules are required.
*/
static const char *const yyRuleName[] = {
%%
};
#endif /* NDEBUG */

/*
** This function returns the symbolic name associated with a token
** value.

  }
#endif
}

/* The following table contains information about every rule that
** is used during the reduce.
*/
static const struct {
  YYCODETYPE lhs;         /* Symbol on the left-hand side of the rule */
  unsigned char nrhs;     /* Number of right-hand side symbols in the rule */
} yyRuleInfo[] = {
%%
};

static void yy_accept(yyParser*);  /* Forward Declaration */