SQLite

  sqldiff$(TEXE)

# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)/test/fuzzdata1.db \
  $(TOP)/test/fuzzdata2.db \
  $(TOP)/test/fuzzdata3.db \
  $(TOP)/test/fuzzdata4.db

# Extra arguments for including json1 in the build of tools
#
JSON1_DEP = $(TOP)/ext/misc/json1.c sqlite3ext.h
JSON1_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_CORE
JSON1_SRC = $(TOP)/ext/misc/json1.c

# Standard options to testfixture
#
TESTOPTS = --verbose=file --output=test-out.txt

# This is the default Makefile target.  The objects listed here
# are what get build when you type just "make" with no arguments.

libtclsqlite3.la:	tclsqlite.lo libsqlite3.la
	$(LTLINK) -no-undefined -o $@ tclsqlite.lo \
		libsqlite3.la @TCL_STUB_LIB_SPEC@ $(TLIBS) \
                -rpath "$(TCLLIBDIR)/sqlite3" \
		-version-info "8:6:8"

sqlite3$(TEXE):	$(TOP)/src/shell.c libsqlite3.la sqlite3.h $(JSON1_DEP)
	$(LTLINK) $(READLINE_FLAGS) $(JSON1_OPT) -o $@ \
		$(TOP)/src/shell.c $(JSON1_SRC) libsqlite3.la \
		$(LIBREADLINE) $(TLIBS) -rpath "$(libdir)"

sqldiff$(TEXE):	$(TOP)/tool/sqldiff.c sqlite3.c sqlite3.h
	$(LTLINK) -o $@ $(TOP)/tool/sqldiff.c sqlite3.c $(TLIBS)

fuzzershell$(TEXE):	$(TOP)/tool/fuzzershell.c sqlite3.c sqlite3.h $(JSON1_DEP)
	$(LTLINK) -o $@ $(JSON1_OPT) \
	  $(TOP)/tool/fuzzershell.c $(JSON1_SRC) sqlite3.c $(TLIBS)

fuzzcheck$(TEXE):	$(TOP)/test/fuzzcheck.c sqlite3.c sqlite3.h $(JSON1_DEP)
	$(LTLINK) -o $@ $(JSON1_OPT) $(TOP)/test/fuzzcheck.c $(JSON1_SRC) sqlite3.c $(TLIBS)

mptester$(TEXE):	sqlite3.c $(TOP)/mptest/mptest.c
	$(LTLINK) -o $@ -I. $(TOP)/mptest/mptest.c sqlite3.c \
		$(TLIBS) -rpath "$(libdir)"

MPTEST1=./mptester$(TEXE) mptest.db $(TOP)/mptest/crash01.test --repeat 20
MPTEST2=./mptester$(TEXE) mptest.db $(TOP)/mptest/multiwrite01.test --repeat 20

  sqldiff.exe

# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)\test\fuzzdata1.db \
  $(TOP)\test\fuzzdata2.db \
  $(TOP)\test\fuzzdata3.db \
  $(TOP)\test\fuzzdata4.db

# Extra arguments for including json1 in the build of tools
#
JSON1_DEP = sqlite3ext.h $(TOP)\ext\misc\json1.c
JSON1_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_CORE
JSON1_SRC = $(TOP)\ext\misc\json1.c

# Standard options to testfixture
#
TESTOPTS = --verbose=file --output=test-out.txt

# This is the default Makefile target.  The objects listed here
# are what get build when you type just "make" with no arguments.
#
all:	dll libsqlite3.lib sqlite3.exe libtclsqlite3.lib

libsqlite3.lib:	$(LIBOBJ)
	$(LTLIB) $(LTLIBOPTS) /OUT:$@ $(LIBOBJ) $(TLIBS)

libtclsqlite3.lib:	tclsqlite.lo libsqlite3.lib
	$(LTLIB) $(LTLIBOPTS) $(LTLIBPATHS) /OUT:$@ tclsqlite.lo libsqlite3.lib $(LIBTCL:tcl=tclstub) $(TLIBS)

sqlite3.exe:	$(TOP)\src\shell.c $(JSON1_DEP) $(SHELL_CORE_DEP) $(LIBRESOBJS) sqlite3.h
	$(LTLINK) $(SHELL_COMPILE_OPTS) $(JSON1_OPT) $(READLINE_FLAGS) $(TOP)\src\shell.c $(JSON1_SRC) \
		/link /pdb:sqlite3sh.pdb $(LTLINKOPTS) $(SHELL_LINK_OPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)

sqldiff.exe:	$(TOP)\tool\sqldiff.c sqlite3.c sqlite3.h
	$(LTLINK) $(NO_WARN) $(TOP)\tool\sqldiff.c sqlite3.c

fuzzershell.exe:	$(TOP)\tool\fuzzershell.c sqlite3.c sqlite3.h $(JSON1_DEP)
	$(LTLINK) $(NO_WARN) $(JSON1_OPT) \
	  $(TOP)\tool\fuzzershell.c $(JSON1_SRC) sqlite3.c

fuzzcheck.exe:	$(TOP)\test\fuzzcheck.c sqlite3.c sqlite3.h $(JSON1_DEP)
	$(LTLINK) $(NO_WARN) $(JSON1_OPT) $(TOP)\test\fuzzcheck.c $(JSON1_SRC) sqlite3.c

mptester.exe:	$(TOP)\mptest\mptest.c $(SHELL_CORE_DEP) $(LIBRESOBJS) sqlite3.h
	$(LTLINK) $(NO_WARN) $(SHELL_COMPILE_OPTS) $(TOP)\mptest\mptest.c \
		/link $(LTLINKOPTS) $(LTLIBPATHS) $(SHELL_LINK_OPTS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS)

MPTEST1 = mptester mptest.db $(TOP)\mptest\crash01.test --repeat 20
MPTEST2 = mptester mptest.db $(TOP)\mptest\multiwrite01.test --repeat 20

	for %i in ($(SRC4)) do copy /Y %i tsrc
	for %i in ($(SRC5)) do copy /Y %i tsrc
	del /Q tsrc\sqlite.h.in tsrc\parse.y 2>NUL
	$(TCLSH_CMD) $(TOP)\tool\vdbe-compress.tcl $(OPTS) < tsrc\vdbe.c > vdbe.new
	move vdbe.new tsrc\vdbe.c
	echo > .target_source

sqlite3.c:	.target_source sqlite3ext.h $(TOP)\tool\mksqlite3c.tcl
	$(TCLSH_CMD) $(TOP)\tool\mksqlite3c.tcl $(MKSQLITE3C_ARGS)
	copy tsrc\shell.c .


sqlite3-all.c:	sqlite3.c $(TOP)\tool\split-sqlite3c.tcl
	$(TCLSH_CMD) $(TOP)\tool\split-sqlite3c.tcl

# Set the source code file to be used by executables and libraries when
# they need the amalgamation.
#

	copy $(TOP)\src\parse.y .
	.\lemon.exe $(REQ_FEATURE_FLAGS) $(OPT_FEATURE_FLAGS) $(OPTS) parse.y
	move parse.h parse.h.temp
	$(NAWK) -f $(TOP)\addopcodes.awk parse.h.temp > parse.h

sqlite3.h:	$(TOP)\src\sqlite.h.in $(TOP)\manifest.uuid $(TOP)\VERSION
	$(TCLSH_CMD) $(TOP)\tool\mksqlite3h.tcl $(TOP:\=/) > sqlite3.h

sqlite3ext.h: .target_source
	copy tsrc\sqlite3ext.h .

mkkeywordhash.exe:	$(TOP)\tool\mkkeywordhash.c
	$(BCC) $(NO_WARN) -Fe$@ $(REQ_FEATURE_FLAGS) $(OPT_FEATURE_FLAGS) $(OPTS) \
		$(TOP)\tool\mkkeywordhash.c /link $(NLTLINKOPTS) $(NLTLIBPATHS)

keywordhash.h:	$(TOP)\tool\mkkeywordhash.c mkkeywordhash.exe
	.\mkkeywordhash.exe > keywordhash.h

**            This way, even if the tokenizer does not provide synonyms
**            when tokenizing query text (it should not - to do would be
**            inefficient), it doesn't matter if the user queries for 
**            'first + place' or '1st + place', as there are entires in the
**            FTS index corresponding to both forms of the first token.
**   </ol>
**
**   Whether it is parsing document or query text, any call to xToken that
**   specifies a <i>tflags</i> argument with the FTS5_TOKEN_COLOCATED bit
**   is considered to supply a synonym for the previous token. For example,
**   when parsing the document "I won first place", a tokenizer that supports
**   synonyms would call xToken() 5 times, as follows:
**
**   <codeblock>
**       xToken(pCtx, 0, "i",                      1,  0,  1);

    assert( pCsr->iLastRowid==LARGEST_INT64 );
    assert( pCsr->iFirstRowid==SMALLEST_INT64 );
    pCsr->ePlan = FTS5_PLAN_SOURCE;
    pCsr->pExpr = pTab->pSortCsr->pExpr;
    rc = fts5CursorFirst(pTab, pCsr, bDesc);
  }else if( pMatch ){
    const char *zExpr = (const char*)sqlite3_value_text(apVal[0]);
    if( zExpr==0 ) zExpr = "";

    rc = fts5CursorParseRank(pConfig, pCsr, pRank);
    if( rc==SQLITE_OK ){
      if( zExpr[0]=='*' ){
        /* The user has issued a query of the form "MATCH '*...'". This
        ** indicates that the MATCH expression is not a full text query,
        ** but a request for an internal parameter.  */

  INSERT INTO tt(tt, rank) VALUES('pgsz', 32);
  INSERT INTO tt VALUES('aa ab ac ad ae af');
}

do_execsql_test 5.8 {
  SELECT rowid FROM tt WHERE tt MATCH 'a*';
} {1}

#-------------------------------------------------------------------------

reset_db
do_execsql_test 6.1 {
  CREATE VIRTUAL TABLE xyz USING fts5(x, y, z);
  INSERT INTO xyz VALUES('x', 'y', 'z');
}

do_catchsql_test 6.2 { 
  SELECT * FROM xyz WHERE xyz MATCH '' 
} {1 {fts5: syntax error near ""}}
do_catchsql_test 6.3 { 
  SELECT * FROM xyz WHERE xyz MATCH NULL 
} {1 {fts5: syntax error near ""}}


finish_test

#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdarg.h>

#define UNUSED_PARAM(X)  (void)(X)

/*
** Versions of isspace(), isalnum() and isdigit() to which it is safe
** to pass signed char values.
*/
#define safe_isdigit(x) isdigit((unsigned char)(x))
#define safe_isalnum(x) isalnum((unsigned char)(x))

/*
** Growing our own isspace() routine this way is twice as fast as
** the library isspace() function, resulting in a 7% overall performance
** increase for the parser.  (Ubuntu14.10 gcc 4.8.4 x64 with -Os).
*/
static const char jsonIsSpace[] = {
  0, 0, 0, 0, 0, 0, 0, 0,     0, 1, 1, 0, 1, 1, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  1, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,     0, 0, 0, 0, 0, 0, 0, 0,
};
#define safe_isspace(x) (jsonIsSpace[(unsigned char)x])

/* Unsigned integer types */
typedef sqlite3_uint64 u64;
typedef unsigned int u32;
typedef unsigned char u8;

/* Objects */
typedef struct JsonString JsonString;

  jsonZero(p);
}


/* Report an out-of-memory (OOM) condition 
*/
static void jsonOom(JsonString *p){

    p->bErr = 1;
    sqlite3_result_error_nomem(p->pCtx);
    jsonReset(p);
  }


/* Enlarge pJson->zBuf so that it can hold at least N more bytes.
** Return zero on success.  Return non-zero on an OOM error
*/
static int jsonGrow(JsonString *p, u32 N){
  u64 nTotal = N<p->nAlloc ? p->nAlloc*2 : p->nAlloc+N+10;
  char *zNew;

static void jsonAppendString(JsonString *p, const char *zIn, u32 N){
  u32 i;
  if( (N+p->nUsed+2 >= p->nAlloc) && jsonGrow(p,N+2)!=0 ) return;
  p->zBuf[p->nUsed++] = '"';
  for(i=0; i<N; i++){
    char c = zIn[i];
    if( c=='"' || c=='\\' ){
      if( (p->nUsed+N+3-i > p->nAlloc) && jsonGrow(p,N+3-i)!=0 ) return;
      p->zBuf[p->nUsed++] = '\\';
    }
    p->zBuf[p->nUsed++] = c;
  }
  p->zBuf[p->nUsed++] = '"';
  assert( p->nUsed<p->nAlloc );
}

/*
** Append a function parameter value to the JSON string under 
** construction.
*/
static void jsonAppendValue(

*/
static void jsonRenderNode(
  JsonNode *pNode,               /* The node to render */
  JsonString *pOut,              /* Write JSON here */
  sqlite3_value **aReplace       /* Replacement values */
){
  switch( pNode->eType ){
    default: {
      assert( pNode->eType==JSON_NULL );
      jsonAppendRaw(pOut, "null", 4);
      break;
    }
    case JSON_TRUE: {
      jsonAppendRaw(pOut, "true", 4);
      break;
    }

*/
static void jsonReturn(
  JsonNode *pNode,            /* Node to return */
  sqlite3_context *pCtx,      /* Return value for this function */
  sqlite3_value **aReplace    /* Array of replacement values */
){
  switch( pNode->eType ){
    default: {
      assert( pNode->eType==JSON_NULL );
      sqlite3_result_null(pCtx);
      break;
    }
    case JSON_TRUE: {
      sqlite3_result_int(pCtx, 1);
      break;
    }

      if( z[0]=='-' ){ z++; }
      while( z[0]>='0' && z[0]<='9' ){ i = i*10 + *(z++) - '0'; }
      if( pNode->u.zJContent[0]=='-' ){ i = -i; }
      sqlite3_result_int64(pCtx, i);
      break;
    }
    case JSON_STRING: {
#if 0 /* Never happens because JNODE_RAW is only set by json_set(),
      ** json_insert() and json_replace() and those routines do not
      ** call jsonReturn() */
      if( pNode->jnFlags & JNODE_RAW ){
        sqlite3_result_text(pCtx, pNode->u.zJContent, pNode->n,
                            SQLITE_TRANSIENT);
      }else 
#endif
      assert( (pNode->jnFlags & JNODE_RAW)==0 );
      if( (pNode->jnFlags & JNODE_ESCAPE)==0 ){
        /* JSON formatted without any backslash-escapes */
        sqlite3_result_text(pCtx, pNode->u.zJContent+1, pNode->n-2,
                            SQLITE_TRANSIENT);
      }else{
        /* Translate JSON formatted string into raw text */
        u32 i;
        u32 n = pNode->n;

    case JSON_ARRAY:
    case JSON_OBJECT: {
      jsonReturnJson(pNode, pCtx, aReplace);
      break;
    }
  }
}

/* Forward reference */
static int jsonParseAddNode(JsonParse*,u32,u32,const char*);

/*
** A macro to hint to the compiler that a function should not be
** inlined.
*/
#if defined(__GNUC__)
#  define JSON_NOINLINE  __attribute__((noinline))
#elif defined(_MSC_VER) && _MSC_VER>=1310
#  define JSON_NOINLINE  __declspec(noinline)
#else
#  define JSON_NOINLINE
#endif


static JSON_NOINLINE int jsonParseAddNodeExpand(
  JsonParse *pParse,        /* Append the node to this object */
  u32 eType,                /* Node type */
  u32 n,                    /* Content size or sub-node count */
  const char *zContent      /* Content */
){
  u32 nNew;
  JsonNode *pNew;
  assert( pParse->nNode>=pParse->nAlloc );
  if( pParse->oom ) return -1;
  nNew = pParse->nAlloc*2 + 10;
  pNew = sqlite3_realloc(pParse->aNode, sizeof(JsonNode)*nNew);
  if( pNew==0 ){
    pParse->oom = 1;
    return -1;
  }
  pParse->nAlloc = nNew;
  pParse->aNode = pNew;
  assert( pParse->nNode<pParse->nAlloc );
  return jsonParseAddNode(pParse, eType, n, zContent);
}

/*
** Create a new JsonNode instance based on the arguments and append that
** instance to the JsonParse.  Return the index in pParse->aNode[] of the
** new node, or -1 if a memory allocation fails.
*/
static int jsonParseAddNode(
  JsonParse *pParse,        /* Append the node to this object */
  u32 eType,                /* Node type */
  u32 n,                    /* Content size or sub-node count */
  const char *zContent      /* Content */
){
  JsonNode *p;
  if( pParse->nNode>=pParse->nAlloc ){






    return jsonParseAddNodeExpand(pParse, eType, n, zContent);








  }
  p = &pParse->aNode[pParse->nNode];
  p->eType = (u8)eType;
  p->jnFlags = 0;
  p->iVal = 0;
  p->n = n;
  p->u.zJContent = zContent;

*/
static int jsonParseValue(JsonParse *pParse, u32 i){
  char c;
  u32 j;
  int iThis;
  int x;
  JsonNode *pNode;
  while( safe_isspace(pParse->zJson[i]) ){ i++; }
  if( (c = pParse->zJson[i])=='{' ){

    /* Parse object */
    iThis = jsonParseAddNode(pParse, JSON_OBJECT, 0, 0);
    if( iThis<0 ) return -1;
    for(j=i+1;;j++){
      while( safe_isspace(pParse->zJson[j]) ){ j++; }
      x = jsonParseValue(pParse, j);
      if( x<0 ){
        if( x==(-2) && pParse->nNode==(u32)iThis+1 ) return j+1;
        return -1;
      }
      if( pParse->oom ) return -1;
      pNode = &pParse->aNode[pParse->nNode-1];
      if( pNode->eType!=JSON_STRING ) return -1;
      pNode->jnFlags |= JNODE_LABEL;
      j = x;
      while( safe_isspace(pParse->zJson[j]) ){ j++; }
      if( pParse->zJson[j]!=':' ) return -1;
      j++;
      x = jsonParseValue(pParse, j);
      if( x<0 ) return -1;
      j = x;
      while( safe_isspace(pParse->zJson[j]) ){ j++; }
      c = pParse->zJson[j];
      if( c==',' ) continue;
      if( c!='}' ) return -1;
      break;
    }
    pParse->aNode[iThis].n = pParse->nNode - (u32)iThis - 1;
    return j+1;
  }else if( c=='[' ){
    /* Parse array */
    iThis = jsonParseAddNode(pParse, JSON_ARRAY, 0, 0);
    if( iThis<0 ) return -1;
    for(j=i+1;;j++){
      while( safe_isspace(pParse->zJson[j]) ){ j++; }
      x = jsonParseValue(pParse, j);
      if( x<0 ){
        if( x==(-3) && pParse->nNode==(u32)iThis+1 ) return j+1;
        return -1;
      }
      j = x;
      while( safe_isspace(pParse->zJson[j]) ){ j++; }
      c = pParse->zJson[j];
      if( c==',' ) continue;
      if( c!=']' ) return -1;
      break;
    }
    pParse->aNode[iThis].n = pParse->nNode - (u32)iThis - 1;
    return j+1;

      j++;
    }
    jsonParseAddNode(pParse, JSON_STRING, j+1-i, &pParse->zJson[i]);
    if( !pParse->oom ) pParse->aNode[pParse->nNode-1].jnFlags = jnFlags;
    return j+1;
  }else if( c=='n'
         && strncmp(pParse->zJson+i,"null",4)==0
         && !safe_isalnum(pParse->zJson[i+4]) ){
    jsonParseAddNode(pParse, JSON_NULL, 0, 0);
    return i+4;
  }else if( c=='t'
         && strncmp(pParse->zJson+i,"true",4)==0
         && !safe_isalnum(pParse->zJson[i+4]) ){
    jsonParseAddNode(pParse, JSON_TRUE, 0, 0);
    return i+4;
  }else if( c=='f'
         && strncmp(pParse->zJson+i,"false",5)==0
         && !safe_isalnum(pParse->zJson[i+5]) ){
    jsonParseAddNode(pParse, JSON_FALSE, 0, 0);
    return i+5;
  }else if( c=='-' || (c>='0' && c<='9') ){
    /* Parse number */
    u8 seenDP = 0;
    u8 seenE = 0;
    j = i+1;

    jsonParseAddNode(pParse, seenDP ? JSON_REAL : JSON_INT,
                        j - i, &pParse->zJson[i]);
    return j;
  }else if( c=='}' ){
    return -2;  /* End of {...} */
  }else if( c==']' ){
    return -3;  /* End of [...] */
  }else if( c==0 ){
    return 0;   /* End of file */
  }else{
    return -1;  /* Syntax error */
  }
}

/*
** Parse a complete JSON string.  Return 0 on success or non-zero if there

  int i;
  memset(pParse, 0, sizeof(*pParse));
  if( zJson==0 ) return 1;
  pParse->zJson = zJson;
  i = jsonParseValue(pParse, 0);
  if( pParse->oom ) i = -1;
  if( i>0 ){
    while( safe_isspace(zJson[i]) ) i++;
    if( zJson[i] ) i = -1;
  }
  if( i<=0 ){
    if( pCtx!=0 ){
      if( pParse->oom ){
        sqlite3_result_error_nomem(pCtx);
      }else{

  if( aUp==0 ){
    pParse->oom = 1;
    return SQLITE_NOMEM;
  }
  jsonParseFillInParentage(pParse, 0, 0);
  return SQLITE_OK;
}

/*
** Compare the OBJECT label at pNode against zKey,nKey.  Return true on
** a match.
*/
static int jsonLabelCompare(JsonNode *pNode, const char *zKey, int nKey){
  if( pNode->jnFlags & JNODE_RAW ){
    if( pNode->n!=nKey ) return 0;
    return strncmp(pNode->u.zJContent, zKey, nKey)==0;
  }else{
    if( pNode->n!=nKey+2 ) return 0;
    return strncmp(pNode->u.zJContent+1, zKey, nKey)==0;
  }
}

/* forward declaration */
static JsonNode *jsonLookupAppend(JsonParse*,const char*,int*,const char**);

/*
** Search along zPath to find the node specified.  Return a pointer
** to that node, or NULL if zPath is malformed or if there is no such

  if( zPath[0]=='.' ){
    if( pRoot->eType!=JSON_OBJECT ) return 0;
    zPath++;
    if( zPath[0]=='"' ){
      zKey = zPath + 1;
      for(i=1; zPath[i] && zPath[i]!='"'; i++){}
      nKey = i-1;
      if( zPath[i] ){
        i++;
      }else{
        *pzErr = zPath;
        return 0;
      }
    }else{
      zKey = zPath;
      for(i=0; zPath[i] && zPath[i]!='.' && zPath[i]!='['; i++){}
      nKey = i;
    }
    if( nKey==0 ){
      *pzErr = zPath;
      return 0;
    }
    j = 1;
    for(;;){
      while( j<=pRoot->n ){
        if( jsonLabelCompare(pRoot+j, zKey, nKey) ){


          return jsonLookupStep(pParse, iRoot+j+1, &zPath[i], pApnd, pzErr);
        }
        j++;
        j += jsonNodeSize(&pRoot[j]);
      }
      if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break;
      iRoot += pRoot->u.iAppend;

        pRoot = &pParse->aNode[iRoot];
        pRoot->u.iAppend = iStart - iRoot;
        pRoot->jnFlags |= JNODE_APPEND;
        pParse->aNode[iLabel].jnFlags |= JNODE_RAW;
      }
      return pNode;
    }
  }else if( zPath[0]=='[' && safe_isdigit(zPath[1]) ){
    if( pRoot->eType!=JSON_ARRAY ) return 0;
    i = 0;

    j = 1;
    while( safe_isdigit(zPath[j]) ){
      i = i*10 + zPath[j] - '0';
      j++;
    }
    if( zPath[j]!=']' ){
      *pzErr = zPath;
      return 0;
    }
    zPath += j + 1;
    j = 1;
    for(;;){
      while( j<=pRoot->n && (i>0 || (pRoot[j].jnFlags & JNODE_REMOVE)!=0) ){
        if( (pRoot[j].jnFlags & JNODE_REMOVE)==0 ) i--;
        j += jsonNodeSize(&pRoot[j]);
      }
      if( (pRoot->jnFlags & JNODE_APPEND)==0 ) break;

      if( pNode ){
        pRoot = &pParse->aNode[iRoot];
        pRoot->u.iAppend = iStart - iRoot;
        pRoot->jnFlags |= JNODE_APPEND;
      }
      return pNode;
    }
  }else{
    *pzErr = zPath;
  }
  return 0;
}

/*
** Append content to pParse that will complete zPath.  Return a pointer

  JsonParse *pParse,      /* The JSON to search */
  const char *zPath,      /* The path to search */
  int *pApnd,             /* Append nodes to complete path if not NULL */
  sqlite3_context *pCtx   /* Report errors here, if not NULL */
){
  const char *zErr = 0;
  JsonNode *pNode = 0;
  char *zMsg;

  if( zPath==0 ) return 0;
  if( zPath[0]!='$' ){
    zErr = zPath;
    goto lookup_err;
  }
  zPath++;
  pNode = jsonLookupStep(pParse, 0, zPath, pApnd, &zErr);
  if( zErr==0 ) return pNode;

lookup_err:
  pParse->nErr++;
  assert( zErr!=0 && pCtx!=0 );
  zMsg = jsonPathSyntaxError(zErr);
  if( zMsg ){
    sqlite3_result_error(pCtx, zMsg, -1);
    sqlite3_free(zMsg);
    }else{
      sqlite3_result_error_nomem(pCtx);
    }

  return 0;
}


/*
** Report the wrong number of arguments for json_insert(), json_replace()
** or json_set().

  sqlite3_context *ctx,
  int argc,
  sqlite3_value **argv
){
  JsonParse x;          /* The parse */
  sqlite3_int64 n = 0;
  u32 i;
  JsonNode *pNode;

  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return;
  assert( x.nNode );

    if( argc==2 ){
      const char *zPath = (const char*)sqlite3_value_text(argv[1]);
      pNode = jsonLookup(&x, zPath, 0, ctx);
    }else{
      pNode = x.aNode;
    }
    if( pNode==0 ){
      x.nErr = 1;
    }else if( pNode->eType==JSON_ARRAY ){
      assert( (pNode->jnFlags & JNODE_APPEND)==0 );
      for(i=1; i<=pNode->n; n++){
        i += jsonNodeSize(&pNode[i]);
      }
    }

  if( x.nErr==0 ) sqlite3_result_int64(ctx, n);
  jsonParseReset(&x);
}

/*
** json_extract(JSON, PATH, ...)
**

    return;
  }
  jsonInit(&jx, ctx);
  jsonAppendChar(&jx, '{');
  for(i=0; i<argc; i+=2){
    if( sqlite3_value_type(argv[i])!=SQLITE_TEXT ){
      sqlite3_result_error(ctx, "json_object() labels must be TEXT", -1);
      jsonReset(&jx);
      return;
    }
    jsonAppendSeparator(&jx);
    z = (const char*)sqlite3_value_text(argv[i]);
    n = (u32)sqlite3_value_bytes(argv[i]);
    jsonAppendString(&jx, z, n);
    jsonAppendChar(&jx, ':');

  JsonParse x;          /* The parse */
  JsonNode *pNode;
  const char *zPath;
  u32 i;

  if( argc<1 ) return;
  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return;
  assert( x.nNode );
    for(i=1; i<(u32)argc; i++){
      zPath = (const char*)sqlite3_value_text(argv[i]);
      if( zPath==0 ) goto remove_done;
      pNode = jsonLookup(&x, zPath, 0, ctx);
      if( x.nErr ) goto remove_done;
      if( pNode ) pNode->jnFlags |= JNODE_REMOVE;
    }
    if( (x.aNode[0].jnFlags & JNODE_REMOVE)==0 ){
      jsonReturnJson(x.aNode, ctx, 0);
    }

remove_done:
  jsonParseReset(&x);
}

/*
** json_replace(JSON, PATH, VALUE, ...)
**

  if( argc<1 ) return;
  if( (argc&1)==0 ) {
    jsonWrongNumArgs(ctx, "replace");
    return;
  }
  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return;
  assert( x.nNode );
    for(i=1; i<(u32)argc; i+=2){
      zPath = (const char*)sqlite3_value_text(argv[i]);
      pNode = jsonLookup(&x, zPath, 0, ctx);
      if( x.nErr ) goto replace_err;
      if( pNode ){
        pNode->jnFlags |= (u8)JNODE_REPLACE;
        pNode->iVal = (u8)(i+1);
      }
    }
    if( x.aNode[0].jnFlags & JNODE_REPLACE ){
      sqlite3_result_value(ctx, argv[x.aNode[0].iVal]);
    }else{
      jsonReturnJson(x.aNode, ctx, argv);
    }

replace_err:
  jsonParseReset(&x);
}

/*
** json_set(JSON, PATH, VALUE, ...)
**

  if( argc<1 ) return;
  if( (argc&1)==0 ) {
    jsonWrongNumArgs(ctx, bIsSet ? "set" : "insert");
    return;
  }
  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return;
  assert( x.nNode );
    for(i=1; i<(u32)argc; i+=2){
      zPath = (const char*)sqlite3_value_text(argv[i]);
      bApnd = 0;
      pNode = jsonLookup(&x, zPath, &bApnd, ctx);
      if( x.oom ){
        sqlite3_result_error_nomem(ctx);
        goto jsonSetDone;
      }else if( x.nErr ){
        goto jsonSetDone;
      }else if( pNode && (bApnd || bIsSet) ){
        pNode->jnFlags |= (u8)JNODE_REPLACE;
        pNode->iVal = (u8)(i+1);
      }
    }
    if( x.aNode[0].jnFlags & JNODE_REPLACE ){
      sqlite3_result_value(ctx, argv[x.aNode[0].iVal]);
    }else{
      jsonReturnJson(x.aNode, ctx, argv);
    }

jsonSetDone:
  jsonParseReset(&x);
}

/*
** json_type(JSON)
** json_type(JSON, PATH)
**
** Return the top-level "type" of a JSON string.  Throw an error if
** either the JSON or PATH inputs are not well-formed.
*/
static void jsonTypeFunc(
  sqlite3_context *ctx,
  int argc,
  sqlite3_value **argv
){
  JsonParse x;          /* The parse */
  const char *zPath;
  JsonNode *pNode;

  if( jsonParse(&x, ctx, (const char*)sqlite3_value_text(argv[0])) ) return;
  assert( x.nNode );

    if( argc==2 ){
      zPath = (const char*)sqlite3_value_text(argv[1]);
      pNode = jsonLookup(&x, zPath, 0, ctx);
    }else{
      pNode = x.aNode;
    }
    if( pNode ){
      sqlite3_result_text(ctx, jsonType[pNode->eType], -1, SQLITE_STATIC);
    }

  jsonParseReset(&x);
}

/*
** json_valid(JSON)
**
** Return 1 if JSON is a well-formed JSON string according to RFC-7159.
** Return 0 otherwise.
*/
static void jsonValidFunc(
  sqlite3_context *ctx,
  int argc,
  sqlite3_value **argv
){
  JsonParse x;          /* The parse */
  int rc = 0;

  UNUSED_PARAM(argc);
  if( jsonParse(&x, 0, (const char*)sqlite3_value_text(argv[0]))==0 ){


    rc = 1;
  }
  jsonParseReset(&x);
  sqlite3_result_int(ctx, rc);
}

#ifndef SQLITE_OMIT_VIRTUALTABLE

    }
    case JEACH_ROOT: {
      const char *zRoot = p->zRoot;
       if( zRoot==0 ) zRoot = "$";
      sqlite3_result_text(ctx, zRoot, -1, SQLITE_STATIC);
      break;
    }
    case JEACH_JSON: {
      assert( i==JEACH_JSON );
      sqlite3_result_text(ctx, p->sParse.zJson, -1, SQLITE_STATIC);
      break;
    }
  }
  return SQLITE_OK;
}

  UNUSED_PARAM(idxStr);
  UNUSED_PARAM(argc);
  jsonEachCursorReset(p);
  if( idxNum==0 ) return SQLITE_OK;
  z = (const char*)sqlite3_value_text(argv[0]);
  if( z==0 ) return SQLITE_OK;









  n = sqlite3_value_bytes(argv[0]);
  p->zJson = sqlite3_malloc64( n+1 );
  if( p->zJson==0 ) return SQLITE_NOMEM;
  memcpy(p->zJson, z, (size_t)n+1);
  if( jsonParse(&p->sParse, 0, p->zJson) ){
    int rc = SQLITE_NOMEM;
    if( p->sParse.oom==0 ){
      sqlite3_free(cur->pVtab->zErrMsg);
      cur->pVtab->zErrMsg = sqlite3_mprintf("malformed JSON");
      if( cur->pVtab->zErrMsg ) rc = SQLITE_ERROR;
    }
    jsonEachCursorReset(p);
    return rc;
  }else if( p->bRecursive && jsonParseFindParents(&p->sParse) ){
    jsonEachCursorReset(p);
    return SQLITE_NOMEM;
  }else{
    JsonNode *pNode = 0;
    if( idxNum==3 ){
      const char *zErr = 0;
      zRoot = (const char*)sqlite3_value_text(argv[1]);
      if( zRoot==0 ) return SQLITE_OK;
      n = sqlite3_value_bytes(argv[1]);
      p->zRoot = sqlite3_malloc64( n+1 );
      if( p->zRoot==0 ) return SQLITE_NOMEM;
      memcpy(p->zRoot, zRoot, (size_t)n+1);
      if( zRoot[0]!='$' ){
        zErr = zRoot;
      }else{
      pNode = jsonLookupStep(&p->sParse, 0, p->zRoot+1, 0, &zErr);
      }
      if( zErr ){
        sqlite3_free(cur->pVtab->zErrMsg);
        cur->pVtab->zErrMsg = jsonPathSyntaxError(zErr);
        jsonEachCursorReset(p);
        return cur->pVtab->zErrMsg ? SQLITE_ERROR : SQLITE_NOMEM;
      }else if( pNode==0 ){
        return SQLITE_OK;
      }
    }else{
      pNode = p->sParse.aNode;
    }
    p->iBegin = p->i = (int)(pNode - p->sParse.aNode);
    p->eType = pNode->eType;
    if( p->eType>=JSON_ARRAY ){
      pNode->u.iKey = 0;
      p->iEnd = p->i + pNode->n + 1;
      if( p->bRecursive ){
        p->eType = p->sParse.aNode[p->sParse.aUp[p->i]].eType;
        if( p->i>0 && (p->sParse.aNode[p->i-1].jnFlags & JNODE_LABEL)!=0 ){
          p->i--;
        }
      }else{
        p->i++;
      }
    }else{
      p->iEnd = p->i+1;
    }
  }
  return SQLITE_OK;
}

/* The methods of the json_each virtual table */
static sqlite3_module jsonEachModule = {
  0,                         /* iVersion */
  0,                         /* xCreate */
  jsonEachConnect,           /* xConnect */

  sqldiff$(EXE)

# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)/test/fuzzdata1.db \
  $(TOP)/test/fuzzdata2.db \
  $(TOP)/test/fuzzdata3.db \
  $(TOP)/test/fuzzdata4.db

# Extra arguments for including json1 in the build of tools
#
JSON1_DEP = $(TOP)/ext/misc/json1.c sqlite3ext.h
JSON1_OPT = -DSQLITE_ENABLE_JSON1 -DSQLITE_CORE
JSON1_SRC = $(TOP)/ext/misc/json1.c

# Standard options to testfixture
#
TESTOPTS = --verbose=file --output=test-out.txt

# This is the default Makefile target.  The objects listed here
# are what get build when you type just "make" with no arguments.
#
all:	sqlite3.h libsqlite3.a sqlite3$(EXE)

libsqlite3.a:	$(LIBOBJ)
	$(AR) libsqlite3.a $(LIBOBJ)
	$(RANLIB) libsqlite3.a

sqlite3$(EXE):	$(TOP)/src/shell.c libsqlite3.a sqlite3.h $(JSON1_DEP)
	$(TCCX) $(READLINE_FLAGS) $(JSON1_OPT) -o sqlite3$(EXE)  \
		$(TOP)/src/shell.c $(JSON1_SRC) \
		libsqlite3.a $(LIBREADLINE) $(TLIBS) $(THREADLIB)

sqldiff$(EXE):	$(TOP)/tool/sqldiff.c sqlite3.c sqlite3.h
	$(TCCX) -o sqldiff$(EXE) -DSQLITE_THREADSAFE=0 \
		$(TOP)/tool/sqldiff.c sqlite3.c $(TLIBS) $(THREADLIB)

fuzzershell$(EXE):	$(TOP)/tool/fuzzershell.c sqlite3.c sqlite3.h $(JSON1_DEP)
	$(TCCX) -o fuzzershell$(EXE) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION \
	  $(JSON1_OPT)	$(TOP)/tool/fuzzershell.c $(JSON1_SRC) sqlite3.c \
	  $(TLIBS) $(THREADLIB)

fuzzcheck$(EXE):	$(TOP)/test/fuzzcheck.c sqlite3.c sqlite3.h $(JSON1_DEP)
	$(TCCX) -o fuzzcheck$(EXE) -DSQLITE_THREADSAFE=0 -DSQLITE_OMIT_LOAD_EXTENSION \
		-DSQLITE_ENABLE_MEMSYS5 $(JSON1_OPT) \
		$(TOP)/test/fuzzcheck.c $(JSON1_SRC) sqlite3.c $(TLIBS) $(THREADLIB)

mptester$(EXE):	sqlite3.c $(TOP)/mptest/mptest.c
	$(TCCX) -o $@ -I. $(TOP)/mptest/mptest.c sqlite3.c \
		$(TLIBS) $(THREADLIB)

MPTEST1=./mptester$(EXE) mptest.db $(TOP)/mptest/crash01.test --repeat 20
MPTEST2=./mptester$(EXE) mptest.db $(TOP)/mptest/multiwrite01.test --repeat 20

  ** from this function, not directly by the user.
  */
  memset(&b, 0, sizeof(b));
  b.pSrcDb = pFrom->db;
  b.pSrc = pFrom;
  b.pDest = pTo;
  b.iNext = 1;

#ifdef SQLITE_HAS_CODEC
  sqlite3PagerAlignReserve(sqlite3BtreePager(pTo), sqlite3BtreePager(pFrom));
#endif

  /* 0x7FFFFFFF is the hard limit for the number of pages in a database
  ** file. By passing this as the number of pages to copy to
  ** sqlite3_backup_step(), we can guarantee that the copy finishes 
  ** within a single call (unless an error occurs). The assert() statement
  ** checks this assumption - (p->rc) should be set to either SQLITE_DONE 
  ** or an error code.

    }
    rc = balance(pCur);
  }

  if( rc==SQLITE_OK ){
    if( bSkipnext ){
      assert( bPreserve && pCur->iPage==iCellDepth );
      assert( pPage==pCur->apPage[pCur->iPage] );
      assert( (pPage->nCell>0 || CORRUPT_DB) && iCellIdx<=pPage->nCell );
      pCur->eState = CURSOR_SKIPNEXT;
      if( iCellIdx>=pPage->nCell ){
        pCur->skipNext = -1;
        pCur->aiIdx[iCellDepth] = pPage->nCell-1;
      }else{
        pCur->skipNext = 1;
      }

        i = get4byte(pOvflData);
        checkPtrmap(pCheck, i, PTRMAP_OVERFLOW2, iPage);
      }
    }
#endif
    iPage = get4byte(pOvflData);
    sqlite3PagerUnref(pOvflPage);

    if( isFreeList && N<(iPage!=0) ){
      checkAppendMsg(pCheck, "free-page count in header is too small");
    }
  }
}
#endif /* SQLITE_OMIT_INTEGRITY_CHECK */

/*
** An implementation of a min-heap.
**

    **  ONEPASS_SINGLE: One-pass approach - at most one row deleted.
    **  ONEPASS_MULTI:  One-pass approach - any number of rows may be deleted.
    */
    pWInfo = sqlite3WhereBegin(pParse, pTabList, pWhere, 0, 0, wcf, iTabCur+1);
    if( pWInfo==0 ) goto delete_from_cleanup;
    eOnePass = sqlite3WhereOkOnePass(pWInfo, aiCurOnePass);
    assert( IsVirtual(pTab)==0 || eOnePass==ONEPASS_OFF );
    assert( IsVirtual(pTab) || bComplex || eOnePass!=ONEPASS_OFF );
  
    /* Keep track of the number of rows to be deleted */
    if( db->flags & SQLITE_CountRows ){
      sqlite3VdbeAddOp2(v, OP_AddImm, memCnt, 1);
    }
  
    /* Extract the rowid or primary key for the current row */

** All loads and stores begun before the barrier must complete before
** any load or store begun after the barrier.
*/
static void unixShmBarrier(
  sqlite3_file *fd                /* Database file holding the shared memory */
){
  UNUSED_PARAMETER(fd);
  sqlite3MemoryBarrier();         /* compiler-defined memory barrier */
  unixEnterMutex();               /* Also mutex, for redundancy */
  unixLeaveMutex();
}

/*
** Close a connection to shared-memory.  Delete the underlying 
** storage if deleteFlag is true.
**

** All loads and stores begun before the barrier must complete before
** any load or store begun after the barrier.
*/
static void winShmBarrier(
  sqlite3_file *fd          /* Database holding the shared memory */
){
  UNUSED_PARAMETER(fd);
  sqlite3MemoryBarrier();   /* compiler-defined memory barrier */
  winShmEnterMutex();       /* Also mutex, for redundancy */
  winShmLeaveMutex();
}

/*
** This function is called to obtain a pointer to region iRegion of the
** shared-memory associated with the database file fd. Shared-memory regions
** are numbered starting from zero. Each shared-memory region is szRegion

    pPager->xCodecSizeChng(pPager->pCodec, pPager->pageSize,
                           (int)pPager->nReserve);
  }
}
#else
# define pagerReportSize(X)     /* No-op if we do not support a codec */
#endif

#ifdef SQLITE_HAS_CODEC
/*
** Make sure the number of reserved bits is the same in the destination
** pager as it is in the source.  This comes up when a VACUUM changes the
** number of reserved bits to the "optimal" amount.
*/
void sqlite3PagerAlignReserve(Pager *pDest, Pager *pSrc){
  if( pDest->nReserve!=pSrc->nReserve ){
    pDest->nReserve = pSrc->nReserve;
    pagerReportSize(pDest);
  }
}
#endif

/*
** Read a single page from either the journal file (if isMainJrnl==1) or
** from the sub-journal (if isMainJrnl==0) and playback that page.
** The page begins at offset *pOffset into the file. The *pOffset
** value is increased to the start of the next page in the journal.
**

);
int sqlite3PagerClose(Pager *pPager);
int sqlite3PagerReadFileheader(Pager*, int, unsigned char*);

/* Functions used to configure a Pager object. */
void sqlite3PagerSetBusyhandler(Pager*, int(*)(void *), void *);
int sqlite3PagerSetPagesize(Pager*, u32*, int);
#ifdef SQLITE_HAS_CODEC
void sqlite3PagerAlignReserve(Pager*,Pager*);
#endif
int sqlite3PagerMaxPageCount(Pager*, int);
void sqlite3PagerSetCachesize(Pager*, int);
void sqlite3PagerSetMmapLimit(Pager *, sqlite3_int64);
void sqlite3PagerShrink(Pager*);
void sqlite3PagerSetFlags(Pager*,unsigned);
int sqlite3PagerLockingMode(Pager *, int);
int sqlite3PagerSetJournalMode(Pager *, int);

    /* The group mutex must be released before pcache1Alloc() is called. This
    ** is because it might call sqlite3_release_memory(), which assumes that 
    ** this mutex is not held. */
    assert( pcache1.separateCache==0 );
    assert( pCache->pGroup==&pcache1.grp );
    pcache1LeaveMutex(pCache->pGroup);
#endif
    if( benignMalloc ){ sqlite3BeginBenignMalloc(); }
#ifdef SQLITE_PCACHE_SEPARATE_HEADER
    pPg = pcache1Alloc(pCache->szPage);
    p = sqlite3Malloc(sizeof(PgHdr1) + pCache->szExtra);
    if( !pPg || !p ){
      pcache1Free(pPg);
      sqlite3_free(p);
      pPg = 0;
    }
#else
    pPg = pcache1Alloc(pCache->szAlloc);
    p = (PgHdr1 *)&((u8 *)pPg)[pCache->szPage];
#endif
    if( benignMalloc ){ sqlite3EndBenignMalloc(); }
#ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
    pcache1EnterMutex(pCache->pGroup);
#endif
    if( pPg==0 ) return 0;
    p->page.pBuf = pPg;
    p->page.pExtra = &p[1];
    p->isBulkLocal = 0;

      }
    }
#endif /* !defined(SQLITE_OMIT_TRIGGER) */

    /*
    ** Perhaps the name is a reference to the ROWID
    */
    if( cnt==0
     && cntTab==1
     && pMatch
     && (pNC->ncFlags & NC_IdxExpr)==0
     && sqlite3IsRowid(zCol)
     && VisibleRowid(pMatch->pTab)
    ){
      cnt = 1;
      pExpr->iColumn = -1;     /* IMP: R-44911-55124 */
      pExpr->affinity = SQLITE_AFF_INTEGER;
    }

    /*
    ** If the input is of the form Z (not Y.Z or X.Y.Z) then the name Z

           pTab->zName);
        pFrom->pTab = 0;
        return WRC_Abort;
      }
      pTab->nRef++;
#if !defined(SQLITE_OMIT_VIEW) || !defined (SQLITE_OMIT_VIRTUALTABLE)
      if( pTab->pSelect || IsVirtual(pTab) ){

        if( sqlite3ViewGetColumnNames(pParse, pTab) ) return WRC_Abort;
        assert( pFrom->pSelect==0 );
        if( pFrom->fg.isTabFunc && !IsVirtual(pTab) ){
          sqlite3ErrorMsg(pParse, "'%s' is not a function", pTab->zName);
          return WRC_Abort;
        }
        pFrom->pSelect = sqlite3SelectDup(db, pTab->pSelect, 0);
        sqlite3SelectSetName(pFrom->pSelect, pTab->zName);
        sqlite3WalkSelect(pWalker, pFrom->pSelect);
      }
#endif
    }

** parameter to [sqlite3_bind_blob|sqlite3_bind()].  ^A zero
** is returned if no matching parameter is found.  ^The parameter
** name must be given in UTF-8 even if the original statement
** was prepared from UTF-16 text using [sqlite3_prepare16_v2()].
**
** See also: [sqlite3_bind_blob|sqlite3_bind()],
** [sqlite3_bind_parameter_count()], and
** [sqlite3_bind_parameter_name()].
*/
int sqlite3_bind_parameter_index(sqlite3_stmt*, const char *zName);

/*
** CAPI3REF: Reset All Bindings On A Prepared Statement
** METHOD: sqlite3_stmt
**

  ** __attribute__((aligned(8))) macro.  */
  static const Mem nullMem 
#if defined(SQLITE_DEBUG) && defined(__GNUC__)
    __attribute__((aligned(8))) 
#endif
    = {
        /* .u          = */ {0},
        /* .flags      = */ (u16)MEM_Null,
        /* .enc        = */ (u8)0,
        /* .eSubtype   = */ (u8)0,
        /* .n          = */ (int)0,
        /* .z          = */ (char*)0,
        /* .zMalloc    = */ (char*)0,
        /* .szMalloc   = */ (int)0,
        /* .uTemp      = */ (u32)0,
        /* .db         = */ (sqlite3*)0,
        /* .xDel       = */ (void(*)(void*))0,
#ifdef SQLITE_DEBUG
        /* .pScopyFrom = */ (Mem*)0,
        /* .pFiller    = */ (void*)0,
#endif
      };
  return &nullMem;
}

/*
** Check to see if column iCol of the given statement is valid.  If

  WhereClause *pWC;    /* Shorthand for pScan->pWC */
  WhereTerm *pTerm;    /* The term being tested */
  int k = pScan->k;    /* Where to start scanning */

  while( pScan->iEquiv<=pScan->nEquiv ){
    iCur = pScan->aiCur[pScan->iEquiv-1];
    iColumn = pScan->aiColumn[pScan->iEquiv-1];
    if( iColumn==(-2) && pScan->pIdxExpr==0 ) return 0;
    while( (pWC = pScan->pWC)!=0 ){
      for(pTerm=pWC->a+k; k<pWC->nTerm; k++, pTerm++){
        if( pTerm->leftCursor==iCur
         && pTerm->u.leftColumn==iColumn
         && (iColumn!=(-2)
               || sqlite3ExprCompare(pTerm->pExpr->pLeft,pScan->pIdxExpr,iCur)==0)
         && (pScan->iEquiv<=1 || !ExprHasProperty(pTerm->pExpr, EP_FromJoin))
        ){
          if( (pTerm->eOperator & WO_EQUIV)!=0
           && pScan->nEquiv<ArraySize(pScan->aiCur)
           && (pX = sqlite3ExprSkipCollate(pTerm->pExpr->pRight))->op==TK_COLUMN
          ){
            int j;


            for(j=0; j<pScan->nEquiv; j++){
              if( pScan->aiCur[j]==pX->iTable
               && pScan->aiColumn[j]==pX->iColumn ){
                  break;
              }
            }
            if( j==pScan->nEquiv ){

**   SELECT * FROM t1 WHERE a=1 AND b>2;
**
** is run and there is an index on (a, b), then this function returns a
** string similar to:
**
**   "a=? AND b>?"
*/
static void explainIndexRange(StrAccum *pStr, WhereLoop *pLoop){
  Index *pIndex = pLoop->u.btree.pIndex;
  u16 nEq = pLoop->u.btree.nEq;
  u16 nSkip = pLoop->nSkip;
  int i, j;

  if( nEq==0 && (pLoop->wsFlags&(WHERE_BTM_LIMIT|WHERE_TOP_LIMIT))==0 ) return;
  sqlite3StrAccumAppend(pStr, " (", 2);

        zFmt = "COVERING INDEX %s";
      }else{
        zFmt = "INDEX %s";
      }
      if( zFmt ){
        sqlite3StrAccumAppend(&str, " USING ", 7);
        sqlite3XPrintf(&str, 0, zFmt, pIdx->zName);
        explainIndexRange(&str, pLoop);
      }
    }else if( (flags & WHERE_IPK)!=0 && (flags & WHERE_CONSTRAINT)!=0 ){
      const char *zRangeOp;
      if( flags&(WHERE_COLUMN_EQ|WHERE_COLUMN_IN) ){
        zRangeOp = "=";
      }else if( (flags&WHERE_BOTH_LIMIT)==WHERE_BOTH_LIMIT ){
        zRangeOp = ">? AND rowid<";

    pLevel->addrSkip = sqlite3VdbeAddOp4Int(v, (bRev?OP_SeekLT:OP_SeekGT),
                            iIdxCur, 0, regBase, nSkip);
    VdbeCoverageIf(v, bRev==0);
    VdbeCoverageIf(v, bRev!=0);
    sqlite3VdbeJumpHere(v, j);
    for(j=0; j<nSkip; j++){
      sqlite3VdbeAddOp3(v, OP_Column, iIdxCur, j, regBase+j);
      testcase( pIdx->aiColumn[j]==(-2) );
      VdbeComment((v, "%s", explainIndexColumnName(pIdx, j)));
    }
  }    

  /* Evaluate the equality constraints
  */
  assert( zAff==0 || (int)strlen(zAff)>=nEq );
  for(j=nSkip; j<nEq; j++){

# This file implements tests to make sure SQLite does not crash or
# segfault if it sees a corrupt database file.
#
# $Id: corrupt2.test,v 1.20 2009/04/06 17:50:03 danielk1977 Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix corrupt2

# Do not use a codec for tests in this file, as the database file is
# manipulated directly using tcl scripts (using the [hexio_write] command).
#
do_not_use_codec

# These tests deal with corrupt database files

      file size corrupt.db
    } [expr $::sqlite_pending_byte + 1024]
    do_test corrupt2-13.3 {
      catchsql { DELETE FROM t1 WHERE rowid < 30; }
    } {1 {database disk image is malformed}}
  }
}

#-------------------------------------------------------------------------
# Test that PRAGMA integrity_check detects cases where the freelist-count
# header field is smaller than the actual number of pages on the freelist.
#

reset_db
do_execsql_test 14.0 {
  PRAGMA auto_vacuum = 0;
  CREATE TABLE t1(x);
  INSERT INTO t1 VALUES(randomblob(3500));
  DELETE FROM t1;
}

do_execsql_test 14.1 {
  PRAGMA integrity_check;
  PRAGMA freelist_count;
} {ok 3}

# There are now 3 free pages. Modify the header-field so that it 
# (incorrectly) says that just 2 are free.
do_test 14.2 {
  db close
  hexio_write test.db 36 [hexio_render_int32 2]
  sqlite3 db test.db
  execsql { PRAGMA freelist_count }
} {2}

do_execsql_test 14.3 {
  PRAGMA integrity_check;
} {{*** in database main ***
Main freelist: free-page count in header is too small}}

# Use 2 of the free pages on the free-list.
#
do_execsql_test 14.4 {
  INSERT INTO t1 VALUES(randomblob(2500));
  PRAGMA freelist_count;
} {0}

do_execsql_test 14.5 {
  PRAGMA integrity_check;
} {{*** in database main ***
Page 3 is never used}}


finish_test

finish_test

  # insert corrupt byte(s)
  hexio_write test.db 3074 [format %02x 0xa0]

  sqlite3 db test.db
  catchsql {BEGIN; UPDATE t2 SET y='abcdef-uvwxyz'; ROLLBACK;}
} {1 {database disk image is malformed}}


# corruption (seed 179069)
# Obsolete.  With single-pass DELETE the corruption in the
# main database is not detected.
if 0 {
do_test corruptC-2.8 {
  db close
  forcecopy test.bu test.db

  # insert corrupt byte(s)
  hexio_write test.db 1393 [format %02x 0x7d]
  hexio_write test.db 84 [format %02x 0x19]
  hexio_write test.db 3287 [format %02x 0x3b]
  hexio_write test.db 2564 [format %02x 0xed]
  hexio_write test.db 2139 [format %02x 0x55]

  sqlite3 db test.db
  catchsql {BEGIN; DELETE FROM t1 WHERE x>13; ROLLBACK;}
} {1 {database disk image is malformed}}
}

# corruption (seed 170434)
#
# UPDATE: Prior to 3.8.2, this used to return SQLITE_CORRUPT. It no longer
# does. That is Ok, the point of these tests is to verify that no buffer
# overruns or overreads can be caused by corrupt databases.
do_test corruptC-2.9 {

  if( pBuf && 1==fread(pBuf, nIn, 1, in) ){
    sqlite3_result_blob(context, pBuf, nIn, sqlite3_free);
  }else{
    sqlite3_free(pBuf);
  }
  fclose(in);
}

/*
** Implementation of the "writefile(X,Y)" SQL function.  The argument Y
** is written into file X.  The number of bytes written is returned.  Or
** NULL is returned if something goes wrong, such as being unable to open
** file X for writing.
*/
static void writefileFunc(
  sqlite3_context *context,
  int argc,
  sqlite3_value **argv
){
  FILE *out;
  const char *z;
  sqlite3_int64 rc;
  const char *zFile;

  (void)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;
  }else{
    rc = fwrite(z, 1, sqlite3_value_bytes(argv[1]), out);
  }
  fclose(out);
  sqlite3_result_int64(context, rc);
}


/*
** Load a list of Blob objects from the database
*/
static void blobListLoadFromDb(
  sqlite3 *db,             /* Read from this database */
  const char *zSql,        /* Query used to extract the blobs */

  printf("Usage: %s [options] SOURCE-DB ?ARGS...?\n", g.zArgv0);
  printf(
"Read databases and SQL scripts from SOURCE-DB and execute each script against\n"
"each database, checking for crashes and memory leaks.\n"
"Options:\n"
"  --cell-size-check     Set the PRAGMA cell_size_check=ON\n"
"  --dbid N              Use only the database where dbid=N\n"
"  --export-db DIR       Write databases to files(s) in DIR. Works with --dbid\n"
"  --export-sql DIR      Write SQL to file(s) in DIR. Also works with --sqlid\n"
"  --help                Show this help text\n"
"  -q                    Reduced output\n"
"  --quiet               Reduced output\n"
"  --limit-mem N         Limit memory used by test SQLite instance to N bytes\n"
"  --limit-vdbe          Panic if an sync SQL runs for more than 100,000 cycles\n"
"  --load-sql ARGS...    Load SQL scripts fro files into SOURCE-DB\n"
"  --load-db ARGS...     Load template databases from files into SOURCE_DB\n"
"  -m TEXT               Add a description to the database\n"
"  --native-vfs          Use the native VFS for initially empty database files\n"
"  --rebuild             Rebuild and vacuum the database file\n"
"  --result-trace        Show the results of each SQL command\n"
"  --sqlid N             Use only SQL where sqlid=N\n"
"  --timeout N           Abort if any single test case needs more than N seconds\n"
"  -v                    Increased output\n"
"  --verbose             Increased output\n"
  );
}

int main(int argc, char **argv){
  sqlite3_int64 iBegin;        /* Start time of this program */

  int nTest = 0;               /* Total number of tests performed */
  char *zDbName = "";          /* Appreviated name of a source database */
  const char *zFailCode = 0;   /* Value of the TEST_FAILURE environment variable */
  int cellSzCkFlag = 0;        /* --cell-size-check */
  int sqlFuzz = 0;             /* True for SQL fuzz testing. False for DB fuzz */
  int iTimeout = 120;          /* Default 120-second timeout */
  int nMem = 0;                /* Memory limit */
  char *zExpDb = 0;            /* Write Databases to files in this directory */
  char *zExpSql = 0;           /* Write SQL to files in this directory */

  iBegin = timeOfDay();
#ifdef __unix__
  signal(SIGALRM, timeoutHandler);
#endif
  g.zArgv0 = argv[0];
  zFailCode = getenv("TEST_FAILURE");
  for(i=1; i<argc; i++){
    const char *z = argv[i];
    if( z[0]=='-' ){
      z++;
      if( z[0]=='-' ) z++;
      if( strcmp(z,"cell-size-check")==0 ){
        cellSzCkFlag = 1;
      }else
      if( strcmp(z,"dbid")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        onlyDbid = integerValue(argv[++i]);
      }else
      if( strcmp(z,"export-db")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        zExpDb = argv[++i];
      }else
      if( strcmp(z,"export-sql")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        zExpSql = argv[++i];
      }else
      if( strcmp(z,"help")==0 ){
        showHelp();
        return 0;
      }else
      if( strcmp(z,"limit-mem")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);

      sqlite3_finalize(pStmt);
      rc = sqlite3_exec(db, "COMMIT", 0, 0, 0);
      if( rc ) fatalError("cannot commit the transaction: %s", sqlite3_errmsg(db));
      rebuild_database(db);
      sqlite3_close(db);
      return 0;
    }
    if( zExpDb!=0 || zExpSql!=0 ){
      sqlite3_create_function(db, "writefile", 2, SQLITE_UTF8, 0,
                              writefileFunc, 0, 0);
      if( zExpDb!=0 ){
        const char *zExDb = 
          "SELECT writefile(printf('%s/db%06d.db',?1,dbid),dbcontent),"
          "       dbid, printf('%s/db%06d.db',?1,dbid), length(dbcontent)"
          "  FROM db WHERE ?2<0 OR dbid=?2;";
        rc = sqlite3_prepare_v2(db, zExDb, -1, &pStmt, 0);
        if( rc ) fatalError("cannot prepare statement [%s]: %s",
                            zExDb, sqlite3_errmsg(db));
        sqlite3_bind_text64(pStmt, 1, zExpDb, strlen(zExpDb),
                            SQLITE_STATIC, SQLITE_UTF8);
        sqlite3_bind_int(pStmt, 2, onlyDbid);
        while( sqlite3_step(pStmt)==SQLITE_ROW ){
          printf("write db-%d (%d bytes) into %s\n",
             sqlite3_column_int(pStmt,1),
             sqlite3_column_int(pStmt,3),
             sqlite3_column_text(pStmt,2));
        }
        sqlite3_finalize(pStmt);
      }
      if( zExpSql!=0 ){
        const char *zExSql = 
          "SELECT writefile(printf('%s/sql%06d.txt',?1,sqlid),sqltext),"
          "       sqlid, printf('%s/sql%06d.txt',?1,sqlid), length(sqltext)"
          "  FROM xsql WHERE ?2<0 OR sqlid=?2;";
        rc = sqlite3_prepare_v2(db, zExSql, -1, &pStmt, 0);
        if( rc ) fatalError("cannot prepare statement [%s]: %s",
                            zExSql, sqlite3_errmsg(db));
        sqlite3_bind_text64(pStmt, 1, zExpSql, strlen(zExpSql),
                            SQLITE_STATIC, SQLITE_UTF8);
        sqlite3_bind_int(pStmt, 2, onlySqlid);
        while( sqlite3_step(pStmt)==SQLITE_ROW ){
          printf("write sql-%d (%d bytes) into %s\n",
             sqlite3_column_int(pStmt,1),
             sqlite3_column_int(pStmt,3),
             sqlite3_column_text(pStmt,2));
        }
        sqlite3_finalize(pStmt);
      }
      sqlite3_close(db);
      return 0;
    }
  
    /* Load all SQL script content and all initial database images from the
    ** source db
    */
    blobListLoadFromDb(db, "SELECT sqlid, sqltext FROM xsql", onlySqlid,
                           &g.nSql, &g.pFirstSql);
    if( g.nSql==0 ) fatalError("need at least one SQL script");

        openFlags = SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE;
        if( nativeFlag && pDb->sz==0 ){
          openFlags |= SQLITE_OPEN_MEMORY;
          zVfs = 0;
        }
        rc = sqlite3_open_v2("main.db", &db, openFlags, zVfs);
        if( rc ) fatalError("cannot open inmem database");
#ifdef SQLITE_ENABLE_JSON1
        {
          extern int sqlite3_json_init(sqlite3*);
          sqlite3_json_init(db);
        }
#endif
        if( cellSzCkFlag ) runSql(db, "PRAGMA cell_size_check=ON", runFlags);
        setAlarm(iTimeout);
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
        if( sqlFuzz || vdbeLimitFlag ){
          sqlite3_progress_handler(db, 100000, progressHandler, &vdbeLimitFlag);
        }
#endif

  SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x);
} {001 002 003 004 005}
do_execsql_test indexexpr1-510eqp {
  EXPLAIN QUERY PLAN
  SELECT substr(a,4,3) AS k FROM cnt, t5 WHERE k=printf('%03d',x);
} {/USING INDEX t5ax/}

# Skip-scan on an indexed expression
#
do_execsql_test indexexpr1-600 {
  DROP TABLE IF EXISTS t4;
  CREATE TABLE t4(a,b,c,d,e,f,g,h,i);
  CREATE INDEX t4all ON t4(a,b,c<d,e,f,i,h);
  INSERT INTO t4 VALUES(1,2,3,4,5,6,7,8,9);
  ANALYZE;
  DELETE FROM sqlite_stat1;
  INSERT INTO sqlite_stat1
    VALUES('t4','t4all','600000 160000 40000 10000 2000 600 100 40 10');
  ANALYZE sqlite_master;
  SELECT i FROM t4 WHERE e=5;
} {9}

# Indexed expressions on both sides of an == in a WHERE clause.
#
do_execsql_test indexexpr1-700 {
  DROP TABLE IF EXISTS t7;
  CREATE TABLE t7(a,b,c);
  INSERT INTO t7(a,b,c) VALUES(1,2,2),('abc','def','def'),(4,5,6);
  CREATE INDEX t7b ON t7(+b);
  CREATE INDEX t7c ON t7(+c);
  SELECT *, '|' FROM t7 WHERE +b=+c ORDER BY +a;
} {1 2 2 | abc def def |}
do_execsql_test indexexpr1-710 {
  CREATE TABLE t71(a,b,c);
  CREATE INDEX t71bc ON t71(b+c);
  CREATE TABLE t72(x,y,z);
  CREATE INDEX t72yz ON t72(y+z);
  INSERT INTO t71(a,b,c) VALUES(1,11,2),(2,7,15),(3,5,4);
  INSERT INTO t72(x,y,z) VALUES(1,10,3),(2,8,14),(3,9,9);
  SELECT a, x, '|' FROM t71, t72
   WHERE b+c=y+z
  ORDER BY +a, +x;
} {1 1 | 2 2 |}

finish_test

# SQLite library.
#

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

load_static_extension db json
do_execsql_test json101-1.1.00 {
  SELECT json_array(1,2.5,null,'hello');
} {[1,2.5,null,"hello"]}
do_execsql_test json101-1.1.01 {
  SELECT json_array(1,'{"abc":2.5,"def":null,"ghi":hello}',99);
  -- the second term goes in as a string:
} {[1,"{\\"abc\\":2.5,\\"def\\":null,\\"ghi\\":hello}",99]}
do_execsql_test json101-1.1.02 {
  SELECT json_array(1,json('{"abc":2.5,"def":null,"ghi":"hello"}'),99);
  -- the second term goes in as JSON
} {[1,{"abc":2.5,"def":null,"ghi":"hello"},99]}
do_execsql_test json101-1.1.03 {
  SELECT json_array(1,json_object('abc',2.5,'def',null,'ghi','hello'),99);
  -- the second term goes in as JSON
} {[1,{"abc":2.5,"def":null,"ghi":"hello"},99]}
do_execsql_test json101-1.2 {
  SELECT hex(json_array('String "\ Test'));
} {5B22537472696E67205C225C5C2054657374225D}
do_catchsql_test json101-1.3 {
  SELECT json_array(1,printf('%.1000c','x'),x'abcd',3);
} {1 {JSON cannot hold BLOB values}}
do_execsql_test json101-1.4 {
  SELECT json_array(-9223372036854775808,9223372036854775807,0,1,-1,
                    0.0, 1.0, -1.0, -1e99, +2e100,
                    'one','two','three',
                    4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
                    19, NULL, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
                    'abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ',
                    99);
} {[-9223372036854775808,9223372036854775807,0,1,-1,0.0,1.0,-1.0,-1.0e+99,2.0e+100,"one","two","three",4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,null,21,22,23,24,25,26,27,28,29,30,31,"abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwyxzABCDEFGHIJKLMNOPQRSTUVWXYZ",99]}

do_execsql_test json101-2.1 {
  SELECT json_object('a',1,'b',2.5,'c',null,'d','String Test');
} {{{"a":1,"b":2.5,"c":null,"d":"String Test"}}}
do_catchsql_test json101-2.2 {
  SELECT json_object('a',printf('%.1000c','x'),2,2.5);
} {1 {json_object() labels must be TEXT}}
do_catchsql_test json101-2.3 {
  SELECT json_object('a',1,'b');
} {1 {json_object() requires an even number of arguments}}
do_catchsql_test json101-2.4 {
  SELECT json_object('a',printf('%.1000c','x'),'b',x'abcd');
} {1 {JSON cannot hold BLOB values}}

do_execsql_test json101-3.1 {
  SELECT json_replace('{"a":1,"b":2}','$.a','[3,4,5]');
} {{{"a":"[3,4,5]","b":2}}}
do_execsql_test json101-3.2 {
  SELECT json_replace('{"a":1,"b":2}','$.a',json('[3,4,5]'));
} {{{"a":[3,4,5],"b":2}}}
do_execsql_test json101-3.3 {
  SELECT json_type(json_set('{"a":1,"b":2}','$.b','{"x":3,"y":4}'),'$.b');
} {text}
do_execsql_test json101-3.4 {
  SELECT json_type(json_set('{"a":1,"b":2}','$.b',json('{"x":3,"y":4}')),'$.b');
} {object}
ifcapable vtab {
do_execsql_test json101-3.5 {
  SELECT fullkey, atom, '|' FROM json_tree(json_set('{}','$.x',123,'$.x',456));
} {{$} {} | {$.x} 456 |}
}

# Per rfc7159, any JSON value is allowed at the top level, and whitespace
# is permitting before and/or after that value.
#
do_execsql_test json101-4.1 {
  CREATE TABLE j1(x);
  INSERT INTO j1(x)
   VALUES('true'),('false'),('null'),('123'),('-234'),('34.5e+6'),
         ('""'),('"\""'),('"\\"'),('"abcdefghijlmnopqrstuvwxyz"'),
         ('[]'),('{}'),('[true,false,null,123,-234,34.5e+6,{},[]]'),
         ('{"a":true,"b":{"c":false}}');
  SELECT * FROM j1 WHERE NOT json_valid(x);
} {}
do_execsql_test json101-4.2 {
  SELECT * FROM j1 WHERE NOT json_valid(char(0x20,0x09,0x0a,0x0d)||x);
} {}
do_execsql_test json101-4.3 {
  SELECT * FROM j1 WHERE NOT json_valid(x||char(0x20,0x09,0x0a,0x0d));
} {}

# But an empty string, or a string of pure whitespace is not valid JSON.
#
do_execsql_test json101-4.4 {
  SELECT json_valid(''), json_valid(char(0x20,0x09,0x0a,0x0d));
} {0 0}

# json_remove() and similar functions with no edit operations return their
# input unchanged.
#
do_execsql_test json101-4.5 {
  SELECT x FROM j1 WHERE json_remove(x)<>x;
} {}
do_execsql_test json101-4.6 {
  SELECT x FROM j1 WHERE json_replace(x)<>x;
} {}
do_execsql_test json101-4.7 {
  SELECT x FROM j1 WHERE json_set(x)<>x;
} {}
do_execsql_test json101-4.8 {
  SELECT x FROM j1 WHERE json_insert(x)<>x;
} {}

# json_extract(JSON,'$') will return objects and arrays without change.
#
do_execsql_test json-4.10 {
  SELECT count(*) FROM j1 WHERE json_type(x) IN ('object','array');

} {}
do_execsql_test json-5.8 {
  SELECT j2.rowid, jx.rowid, fullkey, path, key
    FROM j2, json_tree(j2.json) AS jx
   WHERE jx.value<>jx.atom AND type NOT IN ('array','object');
} {}

do_execsql_test json-6.1 {
  SELECT json_valid('{"a":55,"b":72,}');
} {0}
do_execsql_test json-6.2 {
  SELECT json_valid('{"a":55,"b":72}');
} {1}
do_execsql_test json-6.3 {
  SELECT json_valid('["a",55,"b",72,]');
} {0}
do_execsql_test json-6.4 {
  SELECT json_valid('["a",55,"b",72]');
} {1}


finish_test

do_execsql_test json102-1132 {
  SELECT DISTINCT json_extract(big.json,'$.id')
    FROM big, json_tree(big.json)
   WHERE json_tree.key='uuid'
     AND json_tree.value='6fa5181e-5721-11e5-a04e-57f3d7b32808';
} {123}
} ;# end ifcapable vtab

#-------------------------------------------------------------------------
# Test that json_valid() correctly identifies non-ascii range 
# characters as non-whitespace.
#
do_execsql_test json102-1201 { SELECT json_valid(char(32)  || '"xyz"') } 1
do_execsql_test json102-1202 { SELECT json_valid(char(200) || '"xyz"') } 0

# Off-by-one error in jsonAppendString()
#
for {set i 0} {$i<100} {incr i} {
  set str abcdef[string repeat \" [expr {$i+50}]]uvwxyz
  do_test json102-[format %d [expr {$i+1300}]] {
    db eval {SELECT json_extract(json_array($::str),'$[0]')==$::str}
  } {1}
}

finish_test

do_execsql_test setup {
  -- create a table with many entries
  CREATE TABLE t1(x);
  WITH RECURSIVE
     c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
  INSERT INTO t1 SELECT x FROM c;
}

# Some versions of TCL are unable to [lsort -int] for
# 64-bit integers.  So we write our own comparison
# routine.
proc bigintcompare {a b} {
  set x [expr {$a-$b}]
  if {$x<0} {return -1}
  if {$x>0} {return +1}
  return 0
}
do_test 1.0 {
  set l1 {}
  # If random() is only evaluated once and then reused for each row, then
  # the output should appear in sorted order.  If random() is evaluated 
  # separately for the result set and the ORDER BY clause, then the output
  # order will be random.
  db eval {SELECT random() AS y FROM t1 ORDER BY 1;} {lappend l1 $y}
  expr {$l1==[lsort -command bigintcompare $l1]}
} {1}

do_test 1.1 {
  set l1 {}
  db eval {SELECT random() AS y FROM t1 ORDER BY random();} {lappend l1 $y}
  expr {$l1==[lsort -command bigintcompare $l1]}
} {1}

do_test 1.2 {
  set l1 {}
  db eval {SELECT random() AS y FROM t1 ORDER BY +random();} {lappend l1 $y}
  expr {$l1==[lsort -command bigintcompare $l1]}
} {0}

finish_test

  if {[llength $args]==2} {
    puts [lindex $args 0] [lindex $args 1]
    puts $::LOG [lindex $args 1]
  } else {
    puts [lindex $args 0]
    puts $::LOG [lindex $args 0]
  }
  flush $::LOG
}
puts $LOG "$argv0 $argv"
set tm0 [clock format [clock seconds] -format {%Y-%m-%d %H:%M:%S} -gmt 1]
puts $LOG "start-time: $tm0 UTC"

# Open the file $logfile and look for a report on the number of errors
# and the number of test cases run.  Add these values to the global

  INSERT INTO demo(word) VALUES ('amsterdamweg');
  INSERT INTO demo(word) VALUES ('amsterdamsestraat');
  INSERT INTO demo(word) VALUES ('amsterdamlaan');
}

do_execsql_test 1.1 {
  SELECT word, distance, matchlen FROM demo 
  WHERE word MATCH 'amstedam*' AND top=3
  ORDER BY +word;
} {
   amsterdam      100 9

   amsterdamania  100 9
   amsterdammetje 100 9
}

do_execsql_test 1.2 {
  SELECT word, distance, matchlen FROM demo WHERE 
  word MATCH 'amstedam*' AND top=3 AND distance <= 100
  ORDER BY +word;
} {
   amsterdam      100 9

   amsterdamania  100 9
   amsterdammetje 100 9
}

do_execsql_test 1.3 {
  SELECT word, distance, matchlen FROM demo WHERE 
  word MATCH 'amstedam*' AND distance <= 100
  ORDER BY +word;
} {
   amsterdam         100 9

   amsterdamania     100 9
   amsterdamlaan     100 9
   amsterdammetje    100 9
   amsterdamsestraat 100 9
   amsterdamweg      100 9
}

do_test 1.4 {
  foreach l {a b c d e f g h i j k l m n o p q r s t u v w x y z} {
    execsql { INSERT INTO demo(word) VALUES ('amsterdam' || $l) }
  }
} {}

  amsterdamp        100 9        amsterdamv        100 9
  amsterdamw        100 9        amsterdamweg      100 9
  amsterdamc        100 9        amsterdamg        100 9
}


finish_test

do_test sqllimits1-8.8 {
  # Columns in a view definition:
  set cols [list]
  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols "c$i"
  }
  execsql "CREATE VIEW v1 AS SELECT [join $cols ,] FROM t1;"
  catchsql {SELECT * FROM v1}
} {1 {too many columns in result set}}

do_test sqllimits1-8.9 {
  # Columns in a view definition (testing * expansion):
  set cols [list]
  for {set i 0} {$i < $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols "c$i"
  }
  execsql {DROP VIEW IF EXISTS v1}
  catchsql "CREATE TABLE t2([join $cols ,])"
  catchsql "CREATE VIEW v1 AS SELECT *, c1 AS o FROM t2;"
  catchsql "SELECT * FROM v1"
} {1 {too many columns in result set}}

do_test sqllimits1-8.10 {
  # ORDER BY columns
  set cols [list]
  for {set i 0} {$i <= $SQLITE_LIMIT_COLUMN} {incr i} {
    lappend cols c
  }
  set sql "SELECT c FROM t1 ORDER BY [join $cols ,]"

} {30 25 20 15 10 5 0}
do_execsql_test tabfunc01-1.9 {
  SELECT rowid, * FROM generate_series(0,32,5) ORDER BY value DESC;
} {1 30 2 25 3 20 4 15 5 10 6 5 7 0}
do_execsql_test tabfunc01-1.10 {
  SELECT rowid, * FROM generate_series(0,32,5) ORDER BY +value DESC;
} {7 30 6 25 5 20 4 15 3 10 2 5 1 0}

do_execsql_test tabfunc01-1.20 {
  CREATE VIEW v1(a,b) AS VALUES(1,2),(3,4);
  SELECT * FROM v1;
} {1 2 3 4}
do_catchsql_test tabfunc01-1.21 {
  SELECT * FROM v1(55);
} {1 {'v1' is not a function}}
do_execsql_test tabfunc01-1.22 {
  CREATE VIEW v2(x) AS SELECT value FROM generate_series(1,5);
  SELECT * FROM v2;
} {1 2 3 4 5}
do_catchsql_test tabfunc01-1.23 {
  SELECT * FROM v2(55);
} {1 {'v2' is not a function}}

do_execsql_test tabfunc01-2.1 {
  CREATE TABLE t1(x);
  INSERT INTO t1(x) VALUES(2),(3);
  SELECT *, '|' FROM t1, generate_series(1,x) ORDER BY 1, 2
} {2 1 | 2 2 | 3 1 | 3 2 | 3 3 |}

    db eval $sql
    db eval {INSERT INTO t1(w,x,y,z) VALUES(1,2,3,4),(2,3,3,4)}
  } {}
  do_test $id.2 {
    catchsql {CREATE UNIQUE INDEX t1yz ON t1(y,z)}
  } {1 {UNIQUE constraint failed: t1.y, t1.z}}
}

do_catchsql_test 13.1 {
  CREATE TABLE err1(a,b,c,UNIQUE(rowid));
} {1 {no such column: rowid}}
do_catchsql_test 13.2 {
  CREATE TABLE err1(a,b,c,PRIMARY KEY(rowid));
} {1 {no such column: rowid}}


finish_test

#-------------------------------------------------------------------------
# When a rollback or savepoint rollback occurs, the client may remove
# elements from one of the hash tables in the wal-index. This block
# of test cases tests that nothing appears to go wrong when this is
# done.
#




do_test wal3-1.0 {
  execsql {
    PRAGMA cache_size = 2000;
    PRAGMA page_size = 1024;
    PRAGMA auto_vacuum = off;
    PRAGMA synchronous = normal;
    PRAGMA journal_mode = WAL;

      INSERT INTO t1 SELECT a_string(800) FROM t1;             /*  512 */
      INSERT INTO t1 SELECT a_string(800) FROM t1;             /* 1024 */
      INSERT INTO t1 SELECT a_string(800) FROM t1;             /* 2048 */
      INSERT INTO t1 SELECT a_string(800) FROM t1 LIMIT 1970;  /* 4018 */
    COMMIT;
    PRAGMA cache_size = 10;
  }
  set x [wal_frame_count test.db-wal 1024]
  if {$::G(perm:name)=="memsubsys1"} {
    if {$x==4251 || $x==4290} {set x 4056}
  }
  set x
} 4056

for {set i 1} {$i < 50} {incr i} {

  do_test wal3-1.$i.1 {
    set str [a_string 800]
    execsql { UPDATE t1 SET x = $str WHERE rowid = $i }
    lappend L [wal_frame_count test.db-wal 1024]

do_execsql_test without_rowid6-510 {
  EXPLAIN QUERY PLAN
  SELECT a FROM t1 WHERE b>3 ORDER BY b;
} {/SEARCH TABLE t1 USING PRIMARY KEY .b>../}
do_execsql_test without_rowid6-520 {
  PRAGMA index_list(t1);
} {/sqlite_autoindex_t1_1 1 pk/}

do_catchsql_test without_rowid6-600 {
  CREATE TABLE t6(a,b,c,PRIMARY KEY(a,rowid,b))WITHOUT ROWID;
} {1 {no such column: rowid}}


finish_test

  printf("Usage: %s [options] ?FILE...?\n", g.zArgv0);
  printf(
"Read SQL text from FILE... (or from standard input if FILE... is omitted)\n"
"and then evaluate each block of SQL contained therein.\n"
"Options:\n"
"  --autovacuum          Enable AUTOVACUUM mode\n"
"  --database FILE       Use database FILE instead of an in-memory database\n"
"  --disable-lookaside   Turn off lookaside memory\n"
"  --heap SZ MIN         Memory allocator uses SZ bytes & min allocation MIN\n"
"  --help                Show this help text\n"    
"  --lookaside N SZ      Configure lookaside for N slots of SZ bytes each\n"
"  --oom                 Run each test multiple times in a simulated OOM loop\n"
"  --pagesize N          Set the page size to N\n"
"  --pcache N SZ         Configure N pages of pagecache each of size SZ bytes\n"
"  -q                    Reduced output\n"

  char **azInFile = 0;          /* Array of input file names */
  int jj;                       /* Loop counter for azInFile[] */
  sqlite3_int64 iBegin;         /* Start time for the whole program */
  sqlite3_int64 iStart, iEnd;   /* Start and end-times for a test case */
  const char *zDbName = 0;      /* Name of an on-disk database file to open */

  iBegin = timeOfDay();
  sqlite3_shutdown();
  zFailCode = getenv("TEST_FAILURE");
  g.zArgv0 = argv[0];
  zPrompt = "<stdin>";
  for(i=1; i<argc; i++){
    const char *z = argv[i];
    if( z[0]=='-' ){
      z++;
      if( z[0]=='-' ) z++;
      if( strcmp(z,"autovacuum")==0 ){
        doAutovac = 1;
      }else
      if( strcmp(z,"database")==0 ){
        if( i>=argc-1 ) abendError("missing argument on %s\n", argv[i]);
        zDbName = argv[i+1];
        i += 1;
      }else
      if( strcmp(z,"disable-lookaside")==0 ){
        nLook = 1;
        szLook = 0;
      }else
      if( strcmp(z, "f")==0 && i+1<argc ){
        i++;
        goto addNewInFile;
      }else
      if( strcmp(z,"heap")==0 ){
        if( i>=argc-2 ) abendError("missing arguments on %s\n", argv[i]);

        }
        if( pLook ){
          rc = sqlite3_db_config(db, SQLITE_DBCONFIG_LOOKASIDE,pLook,szLook,nLook);
          if( rc!=SQLITE_OK ) abendError("lookaside configuration filed: %d", rc);
        }
    #ifndef SQLITE_OMIT_TRACE
        sqlite3_trace(db, verboseFlag ? traceCallback : traceNoop, 0);
    #endif
#ifdef SQLITE_ENABLE_JSON1
        {
          extern int sqlite3_json_init(sqlite3*);
          sqlite3_json_init(db);
        }
    #endif
        sqlite3_create_function(db, "eval", 1, SQLITE_UTF8, 0, sqlEvalFunc, 0, 0);
        sqlite3_create_function(db, "eval", 2, SQLITE_UTF8, 0, sqlEvalFunc, 0, 0);
        sqlite3_limit(db, SQLITE_LIMIT_LENGTH, 1000000);
        if( zEncoding ) sqlexec(db, "PRAGMA encoding=%s", zEncoding);
        if( pageSize ) sqlexec(db, "PRAGMA pagesize=%d", pageSize);
        if( doAutovac ) sqlexec(db, "PRAGMA auto_vacuum=FULL");