**    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 DELETE FROM statements.
**
** $Id: delete.c,v 1.36 2002/05/24 02:04:33 drh Exp $
*/
#include "sqliteInt.h"


/*
** Given a table name, find the corresponding table and make sure the
** table is writeable.  Generate an error and return NULL if not.  If
................................................................................
      }
      sqliteVdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
      sqliteVdbeAddOp(v, OP_PutIntKey, oldIdx, 0);
      sqliteVdbeAddOp(v, OP_Close, base, 0);
      sqliteVdbeAddOp(v, OP_Rewind, oldIdx, 0);

      sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_BEFORE, pTab, -1, 
          oldIdx, (pParse->trigStack)?pParse->trigStack->orconf:OE_Default);

    }

    /* Open cursors for the table we are deleting from and all its
    ** indices.  If there are row triggers, this happens inside the
    ** OP_ListRead loop because the cursor have to all be closed
    ** before the trigger fires.  If there are no row triggers, the
    ** cursors are opened only once on the outside the loop.
................................................................................
    */
    if( row_triggers_exist ){
      for(i=1, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
        sqliteVdbeAddOp(v, OP_Close, base + i, pIdx->tnum);
      }
      sqliteVdbeAddOp(v, OP_Close, base, 0);
      sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_AFTER, pTab, -1, 
          oldIdx, (pParse->trigStack)?pParse->trigStack->orconf:OE_Default);

    }

    /* End of the delete loop */
    sqliteVdbeAddOp(v, OP_Goto, 0, addr);
    sqliteVdbeResolveLabel(v, end);
    sqliteVdbeAddOp(v, OP_ListReset, 0, 0);

**    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 DELETE FROM statements.
**
** $Id: delete.c,v 1.37 2002/06/11 02:25:41 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Given a table name, find the corresponding table and make sure the
** table is writeable.  Generate an error and return NULL if not.  If
................................................................................
      }
      sqliteVdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
      sqliteVdbeAddOp(v, OP_PutIntKey, oldIdx, 0);
      sqliteVdbeAddOp(v, OP_Close, base, 0);
      sqliteVdbeAddOp(v, OP_Rewind, oldIdx, 0);

      sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_BEFORE, pTab, -1, 
          oldIdx, (pParse->trigStack)?pParse->trigStack->orconf:OE_Default,
	  addr);
    }

    /* Open cursors for the table we are deleting from and all its
    ** indices.  If there are row triggers, this happens inside the
    ** OP_ListRead loop because the cursor have to all be closed
    ** before the trigger fires.  If there are no row triggers, the
    ** cursors are opened only once on the outside the loop.
................................................................................
    */
    if( row_triggers_exist ){
      for(i=1, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
        sqliteVdbeAddOp(v, OP_Close, base + i, pIdx->tnum);
      }
      sqliteVdbeAddOp(v, OP_Close, base, 0);
      sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_AFTER, pTab, -1, 
          oldIdx, (pParse->trigStack)?pParse->trigStack->orconf:OE_Default,
	  addr);
    }

    /* End of the delete loop */
    sqliteVdbeAddOp(v, OP_Goto, 0, addr);
    sqliteVdbeResolveLabel(v, end);
    sqliteVdbeAddOp(v, OP_ListReset, 0, 0);

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.70 2002/06/09 01:16:01 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Construct a new expression node and return a pointer to it.  Memory
** for this node is obtained from sqliteMalloc().  The calling function
................................................................................
  SrcList *pNew;
  int i;
  if( p==0 ) return 0;
  pNew = sqliteMalloc( sizeof(*pNew) );
  if( pNew==0 ) return 0;
  pNew->nSrc = p->nSrc;
  pNew->a = sqliteMalloc( p->nSrc*sizeof(p->a[0]) );
  if( pNew->a==0 ) return 0;
  for(i=0; i<p->nSrc; i++){
    pNew->a[i].zName = sqliteStrDup(p->a[i].zName);
    pNew->a[i].zAlias = sqliteStrDup(p->a[i].zAlias);
    pNew->a[i].jointype = p->a[i].jointype;
    pNew->a[i].pTab = 0;
    pNew->a[i].pSelect = sqliteSelectDup(p->a[i].pSelect);
    pNew->a[i].pOn = sqliteExprDup(p->a[i].pOn);
................................................................................
      }
      if( pExpr->pRight ){
        sqliteExprCode(pParse, pExpr->pRight);
      }else{
        sqliteVdbeAddOp(v, OP_String, 0, 0);
      }
      sqliteVdbeResolveLabel(v, expr_end_label);






















    }
    break;
  }
}

/*
** Generate code for a boolean expression such that a jump is made

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.71 2002/06/11 02:25:41 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Construct a new expression node and return a pointer to it.  Memory
** for this node is obtained from sqliteMalloc().  The calling function
................................................................................
  SrcList *pNew;
  int i;
  if( p==0 ) return 0;
  pNew = sqliteMalloc( sizeof(*pNew) );
  if( pNew==0 ) return 0;
  pNew->nSrc = p->nSrc;
  pNew->a = sqliteMalloc( p->nSrc*sizeof(p->a[0]) );
  if( pNew->a==0 && p->nSrc != 0 ) return 0;
  for(i=0; i<p->nSrc; i++){
    pNew->a[i].zName = sqliteStrDup(p->a[i].zName);
    pNew->a[i].zAlias = sqliteStrDup(p->a[i].zAlias);
    pNew->a[i].jointype = p->a[i].jointype;
    pNew->a[i].pTab = 0;
    pNew->a[i].pSelect = sqliteSelectDup(p->a[i].pSelect);
    pNew->a[i].pOn = sqliteExprDup(p->a[i].pOn);
................................................................................
      }
      if( pExpr->pRight ){
        sqliteExprCode(pParse, pExpr->pRight);
      }else{
        sqliteVdbeAddOp(v, OP_String, 0, 0);
      }
      sqliteVdbeResolveLabel(v, expr_end_label);
      break;
    }
    case TK_RAISE: {
      if( !pParse->trigStack ){
        sqliteSetNString(&pParse->zErrMsg, 
		"RAISE() may only be used within a trigger-program", -1, 0);
        pParse->nErr++;
	return;
      }
      if( pExpr->iColumn == OE_Rollback ||
	  pExpr->iColumn == OE_Abort ||
	  pExpr->iColumn == OE_Fail ){
	  char * msg = sqliteStrNDup(pExpr->token.z, pExpr->token.n);
	  sqliteVdbeAddOp(v, OP_Halt, SQLITE_CONSTRAINT, pExpr->iColumn);
	  sqliteDequote(msg);
	  sqliteVdbeChangeP3(v, -1, msg, 0);
	  sqliteFree(msg);
      } else {
	  assert( pExpr->iColumn == OE_Ignore );
	  sqliteVdbeAddOp(v, OP_Goto, 0, pParse->trigStack->ignoreJump);
	  sqliteVdbeChangeP3(v, -1, "(IGNORE jump)", -1);
      }
    }
    break;
  }
}

/*
** Generate code for a boolean expression such that a jump is made

**    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 INSERT statements in SQLite.
**
** $Id: insert.c,v 1.60 2002/06/06 18:54:40 drh Exp $
*/
#include "sqliteInt.h"

/*
** This routine is call to handle SQL of the following forms:
**
**    insert into TABLE (IDLIST) values(EXPRLIST)
................................................................................
  */
  if( srcTab>=0 ){
    iBreak = sqliteVdbeMakeLabel(v);
    sqliteVdbeAddOp(v, OP_Rewind, srcTab, iBreak);
    iCont = sqliteVdbeCurrentAddr(v);
  }


  if( row_triggers_exist ){

    /* build the new.* reference row */
    sqliteVdbeAddOp(v, OP_Integer, 13, 0);
    for(i=0; i<pTab->nCol; i++){
      if( pColumn==0 ){
        j = i;
................................................................................
    }
    sqliteVdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
    sqliteVdbeAddOp(v, OP_PutIntKey, newIdx, 0);
    sqliteVdbeAddOp(v, OP_Rewind, newIdx, 0);

    /* Fire BEFORE triggers */
    if( sqliteCodeRowTrigger(pParse, TK_INSERT, 0, TK_BEFORE, pTab, newIdx, -1, 
        onError) ){
      goto insert_cleanup;
    }

    /* Open the tables and indices for the INSERT */
    if( !pTab->pSelect ){
      base = pParse->nTab;
      openOp = pTab->isTemp ? OP_OpenWrAux : OP_OpenWrite;
................................................................................
        sqliteExprCode(pParse, pList->a[j].pExpr);
      }
    }

    /* Generate code to check constraints and generate index keys and
    ** do the insertion.
    */
    endOfLoop = sqliteVdbeMakeLabel(v);
    sqliteGenerateConstraintChecks(pParse, pTab, base, 0,0,0,onError,endOfLoop);
    sqliteCompleteInsertion(pParse, pTab, base, 0,0,0);

    /* Update the count of rows that are inserted
    */
    if( (db->flags & SQLITE_CountRows)!=0 && !pParse->trigStack){
      sqliteVdbeAddOp(v, OP_AddImm, 1, 0);
................................................................................
      for(idx=1, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, idx++){
        sqliteVdbeAddOp(v, OP_Close, idx+base, 0);
      }
    }

    /* Code AFTER triggers */
    if( sqliteCodeRowTrigger(pParse, TK_INSERT, 0, TK_AFTER, pTab, newIdx, -1, 
          onError) ){
      goto insert_cleanup;
    }
  }

  /* The bottom of the loop, if the data source is a SELECT statement
  */
  sqliteVdbeResolveLabel(v, endOfLoop);

**    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 INSERT statements in SQLite.
**
** $Id: insert.c,v 1.61 2002/06/11 02:25:42 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** This routine is call to handle SQL of the following forms:
**
**    insert into TABLE (IDLIST) values(EXPRLIST)
................................................................................
  */
  if( srcTab>=0 ){
    iBreak = sqliteVdbeMakeLabel(v);
    sqliteVdbeAddOp(v, OP_Rewind, srcTab, iBreak);
    iCont = sqliteVdbeCurrentAddr(v);
  }

  endOfLoop = sqliteVdbeMakeLabel(v);
  if( row_triggers_exist ){

    /* build the new.* reference row */
    sqliteVdbeAddOp(v, OP_Integer, 13, 0);
    for(i=0; i<pTab->nCol; i++){
      if( pColumn==0 ){
        j = i;
................................................................................
    }
    sqliteVdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
    sqliteVdbeAddOp(v, OP_PutIntKey, newIdx, 0);
    sqliteVdbeAddOp(v, OP_Rewind, newIdx, 0);

    /* Fire BEFORE triggers */
    if( sqliteCodeRowTrigger(pParse, TK_INSERT, 0, TK_BEFORE, pTab, newIdx, -1, 
        onError, endOfLoop) ){
      goto insert_cleanup;
    }

    /* Open the tables and indices for the INSERT */
    if( !pTab->pSelect ){
      base = pParse->nTab;
      openOp = pTab->isTemp ? OP_OpenWrAux : OP_OpenWrite;
................................................................................
        sqliteExprCode(pParse, pList->a[j].pExpr);
      }
    }

    /* Generate code to check constraints and generate index keys and
    ** do the insertion.
    */

    sqliteGenerateConstraintChecks(pParse, pTab, base, 0,0,0,onError,endOfLoop);
    sqliteCompleteInsertion(pParse, pTab, base, 0,0,0);

    /* Update the count of rows that are inserted
    */
    if( (db->flags & SQLITE_CountRows)!=0 && !pParse->trigStack){
      sqliteVdbeAddOp(v, OP_AddImm, 1, 0);
................................................................................
      for(idx=1, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, idx++){
        sqliteVdbeAddOp(v, OP_Close, idx+base, 0);
      }
    }

    /* Code AFTER triggers */
    if( sqliteCodeRowTrigger(pParse, TK_INSERT, 0, TK_AFTER, pTab, newIdx, -1, 
          onError, endOfLoop) ){
      goto insert_cleanup;
    }
  }

  /* The bottom of the loop, if the data source is a SELECT statement
  */
  sqliteVdbeResolveLabel(v, endOfLoop);

**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.72 2002/06/06 19:04:16 drh Exp $
*/
%token_prefix TK_
%token_type {Token}
%default_type {Token}
%extra_argument {Parse *pParse}
%syntax_error {
  sqliteSetString(&pParse->zErrMsg,"syntax error",0);
................................................................................
// fallback to ID if they will not parse as their original value.
// This obviates the need for the "id" nonterminal.
//
%fallback ID 
  ABORT AFTER ASC BEFORE BEGIN CASCADE CLUSTER CONFLICT
  COPY DEFERRED DELIMITERS DESC EACH END EXPLAIN FAIL FOR
  FULL IGNORE IMMEDIATE INITIALLY INSTEAD MATCH JOIN KEY
  OF OFFSET PARTIAL PRAGMA REPLACE RESTRICT ROW STATEMENT
  TEMP TRIGGER VACUUM VIEW.

// And "ids" is an identifer-or-string.
//
%type ids {Token}
ids(A) ::= id(X).        {A = X;}
ids(A) ::= STRING(X).    {A = X;}
................................................................................

// DELETE
trigger_cmd(A) ::= DELETE FROM ids(X) where_opt(Y).
               {A = sqliteTriggerDeleteStep(&X, Y);}

// SELECT
trigger_cmd(A) ::= select(X).  {A = sqliteTriggerSelectStep(X); }














////////////////////////  DROP TRIGGER statement //////////////////////////////
cmd ::= DROP TRIGGER ids(X). {
    sqliteDropTrigger(pParse,&X,0);
}

**
*************************************************************************
** This file contains SQLite's grammar for SQL.  Process this file
** using the lemon parser generator to generate C code that runs
** the parser.  Lemon will also generate a header file containing
** numeric codes for all of the tokens.
**
** @(#) $Id: parse.y,v 1.73 2002/06/11 02:25:42 danielk1977 Exp $
*/
%token_prefix TK_
%token_type {Token}
%default_type {Token}
%extra_argument {Parse *pParse}
%syntax_error {
  sqliteSetString(&pParse->zErrMsg,"syntax error",0);
................................................................................
// fallback to ID if they will not parse as their original value.
// This obviates the need for the "id" nonterminal.
//
%fallback ID 
  ABORT AFTER ASC BEFORE BEGIN CASCADE CLUSTER CONFLICT
  COPY DEFERRED DELIMITERS DESC EACH END EXPLAIN FAIL FOR
  FULL IGNORE IMMEDIATE INITIALLY INSTEAD MATCH JOIN KEY
  OF OFFSET PARTIAL PRAGMA RAISE REPLACE RESTRICT ROW STATEMENT
  TEMP TRIGGER VACUUM VIEW.

// And "ids" is an identifer-or-string.
//
%type ids {Token}
ids(A) ::= id(X).        {A = X;}
ids(A) ::= STRING(X).    {A = X;}
................................................................................

// DELETE
trigger_cmd(A) ::= DELETE FROM ids(X) where_opt(Y).
               {A = sqliteTriggerDeleteStep(&X, Y);}

// SELECT
trigger_cmd(A) ::= select(X).  {A = sqliteTriggerSelectStep(X); }

// The special RAISE expression that may occur in trigger programs
expr(A) ::= RAISE(X) LP IGNORE RP(Y).  { A = sqliteExpr(TK_RAISE, 0, 0, 0); 
    A->iColumn = OE_Ignore; sqliteExprSpan(A, &X, &Y);}
expr(A) ::= RAISE(X) LP ROLLBACK COMMA ids(Z) RP(Y).  
{ A = sqliteExpr(TK_RAISE, 0, 0, &Z); 
    A->iColumn = OE_Rollback; sqliteExprSpan(A, &X, &Y);}
expr(A) ::= RAISE(X) LP ABORT COMMA ids(Z) RP(Y).  
{ A = sqliteExpr(TK_RAISE, 0, 0, &Z); 
    A->iColumn = OE_Abort; sqliteExprSpan(A, &X, &Y);}
expr(A) ::= RAISE(X) LP FAIL COMMA ids(Z) RP(Y).  
{ A = sqliteExpr(TK_RAISE, 0, 0, &Z); 
    A->iColumn = OE_Fail; sqliteExprSpan(A, &X, &Y);}

////////////////////////  DROP TRIGGER statement //////////////////////////////
cmd ::= DROP TRIGGER ids(X). {
    sqliteDropTrigger(pParse,&X,0);
}

**    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.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.122 2002/06/09 10:14:19 drh Exp $
*/
#include "sqlite.h"
#include "hash.h"
#include "vdbe.h"
#include "parse.h"
#include "btree.h"
#include <stdio.h>
................................................................................
 * recursively. If this condition is detected, the nested trigger is not coded.
 */
struct TriggerStack {
  Table *pTab;         /* Table that triggers are currently being coded on */
  int newIdx;          /* Index of vdbe cursor to "new" temp table */
  int oldIdx;          /* Index of vdbe cursor to "old" temp table */
  int orconf;          /* Current orconf policy */

  Trigger *pTrigger;

  TriggerStack *pNext;
};

/*
 * This global flag is set for performance testing of triggers. When it is set
................................................................................
int sqliteSafetyOff(sqlite*);
int sqliteSafetyCheck(sqlite*);
void sqliteChangeCookie(sqlite *);
void sqliteCreateTrigger(Parse*, Token*, int, int, IdList*, Token*, 
                         int, Expr*, TriggerStep*, char const*,int);
void sqliteDropTrigger(Parse*, Token*, int);
int sqliteTriggersExist(Parse* , Trigger* , int , int , int, ExprList*);
int sqliteCodeRowTrigger(Parse*, int, ExprList*, int, Table *, int, int, int);

void sqliteViewTriggers(Parse*, Table*, Expr*, int, ExprList*);
TriggerStep *sqliteTriggerSelectStep(Select*);
TriggerStep *sqliteTriggerInsertStep(Token*, IdList*, ExprList*, Select*, int);
TriggerStep *sqliteTriggerUpdateStep(Token*, ExprList*, Expr*, int);
TriggerStep *sqliteTriggerDeleteStep(Token*, Expr*);
void sqliteDeleteTrigger(Trigger*);
int sqliteJoinType(Parse*, Token*, Token*, Token*);

**    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.
**
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.123 2002/06/11 02:25:42 danielk1977 Exp $
*/
#include "sqlite.h"
#include "hash.h"
#include "vdbe.h"
#include "parse.h"
#include "btree.h"
#include <stdio.h>
................................................................................
 * recursively. If this condition is detected, the nested trigger is not coded.
 */
struct TriggerStack {
  Table *pTab;         /* Table that triggers are currently being coded on */
  int newIdx;          /* Index of vdbe cursor to "new" temp table */
  int oldIdx;          /* Index of vdbe cursor to "old" temp table */
  int orconf;          /* Current orconf policy */
  int ignoreJump;      /* where to jump to for a RAISE(IGNORE) */
  Trigger *pTrigger;

  TriggerStack *pNext;
};

/*
 * This global flag is set for performance testing of triggers. When it is set
................................................................................
int sqliteSafetyOff(sqlite*);
int sqliteSafetyCheck(sqlite*);
void sqliteChangeCookie(sqlite *);
void sqliteCreateTrigger(Parse*, Token*, int, int, IdList*, Token*, 
                         int, Expr*, TriggerStep*, char const*,int);
void sqliteDropTrigger(Parse*, Token*, int);
int sqliteTriggersExist(Parse* , Trigger* , int , int , int, ExprList*);
int sqliteCodeRowTrigger(Parse*, int, ExprList*, int, Table *, int, int, 
                         int, int);
void sqliteViewTriggers(Parse*, Table*, Expr*, int, ExprList*);
TriggerStep *sqliteTriggerSelectStep(Select*);
TriggerStep *sqliteTriggerInsertStep(Token*, IdList*, ExprList*, Select*, int);
TriggerStep *sqliteTriggerUpdateStep(Token*, ExprList*, Expr*, int);
TriggerStep *sqliteTriggerDeleteStep(Token*, Expr*);
void sqliteDeleteTrigger(Trigger*);
int sqliteJoinType(Parse*, Token*, Token*, Token*);

*************************************************************************
** An tokenizer for SQL
**
** This file contains C code that splits an SQL input string up into
** individual tokens and sends those tokens one-by-one over to the
** parser for analysis.
**
** $Id: tokenize.c,v 1.44 2002/06/02 18:19:00 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include <stdlib.h>

/*
................................................................................
  { "OFFSET",            0, TK_OFFSET,           0 },
  { "ON",                0, TK_ON,               0 },
  { "OR",                0, TK_OR,               0 },
  { "ORDER",             0, TK_ORDER,            0 },
  { "PARTIAL",           0, TK_PARTIAL,          0 },
  { "PRAGMA",            0, TK_PRAGMA,           0 },
  { "PRIMARY",           0, TK_PRIMARY,          0 },

  { "REFERENCES",        0, TK_REFERENCES,       0 },
  { "REPLACE",           0, TK_REPLACE,          0 },
  { "RESTRICT",          0, TK_RESTRICT,         0 },
  { "ROLLBACK",          0, TK_ROLLBACK,         0 },
  { "ROW",               0, TK_ROW,              0 },
  { "SELECT",            0, TK_SELECT,           0 },
  { "SET",               0, TK_SET,              0 },

*************************************************************************
** An tokenizer for SQL
**
** This file contains C code that splits an SQL input string up into
** individual tokens and sends those tokens one-by-one over to the
** parser for analysis.
**
** $Id: tokenize.c,v 1.45 2002/06/11 02:25:42 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include <stdlib.h>

/*
................................................................................
  { "OFFSET",            0, TK_OFFSET,           0 },
  { "ON",                0, TK_ON,               0 },
  { "OR",                0, TK_OR,               0 },
  { "ORDER",             0, TK_ORDER,            0 },
  { "PARTIAL",           0, TK_PARTIAL,          0 },
  { "PRAGMA",            0, TK_PRAGMA,           0 },
  { "PRIMARY",           0, TK_PRIMARY,          0 },
  { "RAISE",             0, TK_RAISE,            0 },
  { "REFERENCES",        0, TK_REFERENCES,       0 },
  { "REPLACE",           0, TK_REPLACE,          0 },
  { "RESTRICT",          0, TK_RESTRICT,         0 },
  { "ROLLBACK",          0, TK_ROLLBACK,         0 },
  { "ROW",               0, TK_ROW,              0 },
  { "SELECT",            0, TK_SELECT,           0 },
  { "SET",               0, TK_SET,              0 },

  while( pTriggerStep ){
    int saveNTab = pParse->nTab;
    orconf = (orconfin == OE_Default)?pTriggerStep->orconf:orconfin;
    pParse->trigStack->orconf = orconf;
    switch( pTriggerStep->op ){
      case TK_SELECT: {



	sqliteSelect(pParse, pTriggerStep->pSelect, SRT_Discard, 0, 0, 0, 0);

	break;
      }
      case TK_UPDATE: {
        sqliteVdbeAddOp(pParse->pVdbe, OP_ListPush, 0, 0);
        sqliteUpdate(pParse, &pTriggerStep->target, 
        sqliteExprListDup(pTriggerStep->pExprList), 
        sqliteExprDup(pTriggerStep->pWhere), orconf);
        sqliteVdbeAddOp(pParse->pVdbe, OP_ListPop, 0, 0);
        break;
      }
      case TK_INSERT: {
        sqliteInsert(pParse, &pTriggerStep->target, 
        sqliteExprListDup(pTriggerStep->pExprList), 
        sqliteSelectDup(pTriggerStep->pSelect), 
................................................................................
  Parse *pParse,       /* Parse context */
  int op,              /* One of TK_UPDATE, TK_INSERT, TK_DELETE */
  ExprList *pChanges,  /* Changes list for any UPDATE OF triggers */
  int tr_tm,           /* One of TK_BEFORE, TK_AFTER */
  Table *pTab,         /* The table to code triggers from */
  int newIdx,          /* The indice of the "new" row to access */
  int oldIdx,          /* The indice of the "old" row to access */
  int orconf           /* ON CONFLICT policy */

){
  Trigger * pTrigger;
  TriggerStack * pTriggerStack;

  assert(op == TK_UPDATE || op == TK_INSERT || op == TK_DELETE);
  assert(tr_tm == TK_BEFORE || tr_tm == TK_AFTER);

................................................................................

      /* Push an entry on to the trigger stack */
      pTriggerStack->pTrigger = pTrigger;
      pTriggerStack->newIdx = newIdx;
      pTriggerStack->oldIdx = oldIdx;
      pTriggerStack->pTab = pTab;
      pTriggerStack->pNext = pParse->trigStack;

      pParse->trigStack = pTriggerStack;

      /* code the WHEN clause */
      endTrigger = sqliteVdbeMakeLabel(pParse->pVdbe);
      whenExpr = sqliteExprDup(pTrigger->pWhen);
      if( sqliteExprResolveIds(pParse, 0, &dummyTablist, 0, whenExpr) ){
        pParse->trigStack = pParse->trigStack->pNext;
................................................................................
    }

    sqliteVdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
    sqliteVdbeAddOp(v, OP_PutIntKey, newIdx, 0);
    sqliteVdbeAddOp(v, OP_Rewind, newIdx, 0);

    sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_BEFORE, 
        pTab, newIdx, oldIdx, orconf);
    sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_AFTER, 
        pTab, newIdx, oldIdx, orconf);
  }else{
    sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_BEFORE, pTab, -1, oldIdx, 
        orconf);
    sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_AFTER, pTab, -1, oldIdx, 
        orconf);
  }

  sqliteVdbeAddOp(v, OP_Next, oldIdx, startOfLoop);

  sqliteVdbeResolveLabel(v, endOfLoop);
  sqliteEndWriteOperation(pParse);

  while( pTriggerStep ){
    int saveNTab = pParse->nTab;
    orconf = (orconfin == OE_Default)?pTriggerStep->orconf:orconfin;
    pParse->trigStack->orconf = orconf;
    switch( pTriggerStep->op ){
      case TK_SELECT: {
	Select * ss = sqliteSelectDup(pTriggerStep->pSelect);		  
	assert(ss);
	assert(ss->pSrc);
	sqliteSelect(pParse, ss, SRT_Discard, 0, 0, 0, 0);
	sqliteSelectDelete(ss);
	break;
      }
      case TK_UPDATE: {
        sqliteVdbeAddOp(pParse->pVdbe, OP_ListPush, 0, 0);
        sqliteUpdate(pParse, &pTriggerStep->target, 
		sqliteExprListDup(pTriggerStep->pExprList), 
		sqliteExprDup(pTriggerStep->pWhere), orconf);
        sqliteVdbeAddOp(pParse->pVdbe, OP_ListPop, 0, 0);
        break;
      }
      case TK_INSERT: {
        sqliteInsert(pParse, &pTriggerStep->target, 
        sqliteExprListDup(pTriggerStep->pExprList), 
        sqliteSelectDup(pTriggerStep->pSelect), 
................................................................................
  Parse *pParse,       /* Parse context */
  int op,              /* One of TK_UPDATE, TK_INSERT, TK_DELETE */
  ExprList *pChanges,  /* Changes list for any UPDATE OF triggers */
  int tr_tm,           /* One of TK_BEFORE, TK_AFTER */
  Table *pTab,         /* The table to code triggers from */
  int newIdx,          /* The indice of the "new" row to access */
  int oldIdx,          /* The indice of the "old" row to access */
  int orconf,          /* ON CONFLICT policy */
  int ignoreJump       /* Instruction to jump to for RAISE(IGNORE) */
){
  Trigger * pTrigger;
  TriggerStack * pTriggerStack;

  assert(op == TK_UPDATE || op == TK_INSERT || op == TK_DELETE);
  assert(tr_tm == TK_BEFORE || tr_tm == TK_AFTER);

................................................................................

      /* Push an entry on to the trigger stack */
      pTriggerStack->pTrigger = pTrigger;
      pTriggerStack->newIdx = newIdx;
      pTriggerStack->oldIdx = oldIdx;
      pTriggerStack->pTab = pTab;
      pTriggerStack->pNext = pParse->trigStack;
      pTriggerStack->ignoreJump = ignoreJump;
      pParse->trigStack = pTriggerStack;

      /* code the WHEN clause */
      endTrigger = sqliteVdbeMakeLabel(pParse->pVdbe);
      whenExpr = sqliteExprDup(pTrigger->pWhen);
      if( sqliteExprResolveIds(pParse, 0, &dummyTablist, 0, whenExpr) ){
        pParse->trigStack = pParse->trigStack->pNext;
................................................................................
    }

    sqliteVdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
    sqliteVdbeAddOp(v, OP_PutIntKey, newIdx, 0);
    sqliteVdbeAddOp(v, OP_Rewind, newIdx, 0);

    sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_BEFORE, 
        pTab, newIdx, oldIdx, orconf, endOfLoop);
    sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_AFTER, 
        pTab, newIdx, oldIdx, orconf, endOfLoop);
  }else{
    sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_BEFORE, pTab, -1, oldIdx, 
        orconf, endOfLoop);
    sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_AFTER, pTab, -1, oldIdx, 
        orconf, endOfLoop);
  }

  sqliteVdbeAddOp(v, OP_Next, oldIdx, startOfLoop);

  sqliteVdbeResolveLabel(v, endOfLoop);
  sqliteEndWriteOperation(pParse);

**    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 UPDATE statements.
**
** $Id: update.c,v 1.43 2002/05/24 02:04:34 drh Exp $
*/
#include "sqliteInt.h"

/*
** Process an UPDATE statement.
*/
void sqliteUpdate(
................................................................................
    sqliteVdbeAddOp(v, OP_PutIntKey, newIdx, 0);
    sqliteVdbeAddOp(v, OP_Close, base, 0);

    sqliteVdbeAddOp(v, OP_Rewind, oldIdx, 0);
    sqliteVdbeAddOp(v, OP_Rewind, newIdx, 0);

    if( sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_BEFORE, pTab, 
          newIdx, oldIdx, onError) ){
      goto update_cleanup;
    }
  }

  /* Rewind the list of records that need to be updated and
  ** open every index that needs updating.  Note that if any
  ** index could potentially invoke a REPLACE conflict resolution 
................................................................................
      if( openAll || aIdxUsed[i] )
        sqliteVdbeAddOp(v, OP_Close, base+i+1, 0);
    }
    sqliteVdbeAddOp(v, OP_Close, base, 0);
    pParse->nTab = base;

    if( sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_AFTER, pTab, 
          newIdx, oldIdx, onError) ){
      goto update_cleanup;
    }
  }

  /* Repeat the above with the next record to be updated, until
  ** all record selected by the WHERE clause have been updated.
  */

**    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 UPDATE statements.
**
** $Id: update.c,v 1.44 2002/06/11 02:25:42 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** Process an UPDATE statement.
*/
void sqliteUpdate(
................................................................................
    sqliteVdbeAddOp(v, OP_PutIntKey, newIdx, 0);
    sqliteVdbeAddOp(v, OP_Close, base, 0);

    sqliteVdbeAddOp(v, OP_Rewind, oldIdx, 0);
    sqliteVdbeAddOp(v, OP_Rewind, newIdx, 0);

    if( sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_BEFORE, pTab, 
          newIdx, oldIdx, onError, addr) ){
      goto update_cleanup;
    }
  }

  /* Rewind the list of records that need to be updated and
  ** open every index that needs updating.  Note that if any
  ** index could potentially invoke a REPLACE conflict resolution 
................................................................................
      if( openAll || aIdxUsed[i] )
        sqliteVdbeAddOp(v, OP_Close, base+i+1, 0);
    }
    sqliteVdbeAddOp(v, OP_Close, base, 0);
    pParse->nTab = base;

    if( sqliteCodeRowTrigger(pParse, TK_UPDATE, pChanges, TK_AFTER, pTab, 
          newIdx, oldIdx, onError, addr) ){
      goto update_cleanup;
    }
  }

  /* Repeat the above with the next record to be updated, until
  ** all record selected by the WHERE clause have been updated.
  */

** type to the other occurs as necessary.
** 
** Most of the code in this file is taken up by the sqliteVdbeExec()
** function which does the work of interpreting a VDBE program.
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.154 2002/06/08 23:25:09 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** The following global variable is incremented every time a cursor
** moves, either by the OP_MoveTo or the OP_Next opcode.  The test
................................................................................
** every program.  So a jump past the last instruction of the program
** is the same as executing Halt.
*/
case OP_Halt: {
  if( pOp->p1!=SQLITE_OK ){
    rc = pOp->p1;
    errorAction = pOp->p2;




    goto abort_due_to_error;
  }else{
    pc = p->nOp-1;
  }
  break;
}

** type to the other occurs as necessary.
** 
** Most of the code in this file is taken up by the sqliteVdbeExec()
** function which does the work of interpreting a VDBE program.
** But other routines are also provided to help in building up
** a program instruction by instruction.
**
** $Id: vdbe.c,v 1.155 2002/06/11 02:25:42 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** The following global variable is incremented every time a cursor
** moves, either by the OP_MoveTo or the OP_Next opcode.  The test
................................................................................
** every program.  So a jump past the last instruction of the program
** is the same as executing Halt.
*/
case OP_Halt: {
  if( pOp->p1!=SQLITE_OK ){
    rc = pOp->p1;
    errorAction = pOp->p2;
    if( pOp->p3 ){
	sqliteSetString(pzErrMsg, pOp->p3, 0);
	goto cleanup;
    }
    goto abort_due_to_error;
  }else{
    pc = p->nOp-1;
  }
  break;
}

# 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 tests the RAISE() function.
#

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Test that we can cause ROLLBACK, FAIL and ABORT correctly
# catchsql { DROP TABLE tbl; }
catchsql { CREATE TABLE tbl (a, b, c) }

execsql {
    CREATE TRIGGER before_tbl_insert BEFORE INSERT ON tbl BEGIN SELECT CASE 
	WHEN (new.a = 4) THEN RAISE(IGNORE) END;
    END;

    CREATE TRIGGER after_tbl_insert AFTER INSERT ON tbl BEGIN SELECT CASE 
	WHEN (new.a = 1) THEN RAISE(ABORT,    'Trigger abort') 
	WHEN (new.a = 2) THEN RAISE(FAIL,     'Trigger fail') 
	WHEN (new.a = 3) THEN RAISE(ROLLBACK, 'Trigger rollback') END;
    END;
}
# ABORT
do_test trig-raise-1.1 {
    catchsql {
	BEGIN;
        INSERT INTO tbl VALUES (5, 5, 6);
        INSERT INTO tbl VALUES (1, 5, 6);
    }
} {1 {Trigger abort}}

do_test trig-raise-1.2 {
    execsql {
	SELECT * FROM tbl;
	ROLLBACK;
    }
} {5 5 6}

# FAIL
do_test trig-raise-2.1 {
    catchsql {
	BEGIN;
        INSERT INTO tbl VALUES (5, 5, 6);
        INSERT INTO tbl VALUES (2, 5, 6);
    }
} {1 {Trigger fail}}
do_test trig-raise-2.2 {
    execsql {
	SELECT * FROM tbl;
	ROLLBACK;
    }
} {5 5 6 2 5 6}
# ROLLBACK
do_test trig-raise-3.1 {
    catchsql {
	BEGIN;
        INSERT INTO tbl VALUES (5, 5, 6);
        INSERT INTO tbl VALUES (3, 5, 6);
    }
} {1 {Trigger rollback}}
do_test trig-raise-3.2 {
    execsql {
	SELECT * FROM tbl;
	ROLLBACK;
    }
} {}
# IGNORE
do_test trig-raise-4.1 {
    catchsql {
	BEGIN;
        INSERT INTO tbl VALUES (5, 5, 6);
        INSERT INTO tbl VALUES (4, 5, 6);
    }
} {0 {}}
do_test trig-raise-4.2 {
    execsql {
	SELECT * FROM tbl;
	ROLLBACK;
    }
} {5 5 6}

# Check that we can also do RAISE(IGNORE) for UPDATE and DELETE
execsql {DROP TABLE tbl;}
execsql {CREATE TABLE tbl (a, b, c);}
execsql {INSERT INTO tbl VALUES(1, 2, 3);}
execsql {INSERT INTO tbl VALUES(4, 5, 6);}
execsql {
    CREATE TRIGGER before_tbl_update BEFORE UPDATE ON tbl BEGIN
	SELECT CASE WHEN (old.a = 1) THEN RAISE(IGNORE) END;
    END;

    CREATE TRIGGER before_tbl_delete BEFORE DELETE ON tbl BEGIN
	SELECT CASE WHEN (old.a = 1) THEN RAISE(IGNORE) END;
    END;
}
do_test trig-raise-5.1 {
    execsql {
	UPDATE tbl SET c = 10;
	SELECT * FROM tbl;
    }
} {1 2 3 4 5 10}
do_test trig-raise-5.2 {
    execsql {
	DELETE FROM tbl;
	SELECT * FROM tbl;
    }
} {1 2 3}

# Check that RAISE(IGNORE) works correctly for nested triggers:
execsql {CREATE TABLE tbl2(a, b, c)}
execsql {
    CREATE TRIGGER after_tbl2_insert AFTER INSERT ON tbl2 BEGIN
	UPDATE tbl SET c = 10;
        INSERT INTO tbl2 VALUES (new.a, new.b, new.c);
    END;
}
do_test trig-raise-6 {
    execsql {
	INSERT INTO tbl2 VALUES (1, 2, 3);
	SELECT * FROM tbl2;
	SELECT * FROM tbl;
    }
} {1 2 3 1 2 3 1 2 3}

# Check that things also work for view-triggers
execsql {CREATE VIEW tbl_view AS SELECT * FROM tbl}
execsql {
    CREATE TRIGGER tbl_view_insert INSTEAD OF INSERT ON tbl_view BEGIN
	SELECT CASE WHEN (new.a = 1) THEN RAISE(ROLLBACK, 'View rollback')
	            WHEN (new.a = 2) THEN RAISE(IGNORE) 
	            WHEN (new.a = 3) THEN RAISE(ABORT, 'View abort') END;
    END;
}

do_test trig-raise-7.1 {
    catchsql {
	INSERT INTO tbl_view VALUES(1, 2, 3);
    }
} {1 {View rollback}}
do_test trig-raise-7.2 {
    catchsql {
	INSERT INTO tbl_view VALUES(2, 2, 3);
    }
} {0 {}}
do_test trig-raise-7.3 {
    catchsql {
	INSERT INTO tbl_view VALUES(3, 2, 3);
    }
} {1 {View abort}}

catchsql { DROP TABLE tbl; } 
catchsql { DROP TABLE tbl2; } 
catchsql { DROP VIEW tbl_view; }