#include "sqliteInt.h"

#define etRADIX 0 /* non-decimal integer types. %x %o */

#define etFLOAT 1 /* Floating point. %f */

#define etEXP 2 /* Exponentional notation. %e and %E */

#define etGENERIC 3 /* Floating or exponential, depending on exponent. %g */

#define etSIZE 4 /* Return number of characters processed so far. %n */

#define etSTRING 5 /* Strings. %s */

#define etDYNSTRING 6 /* Dynamically allocated strings. %z */

#define etPERCENT 7 /* Percent symbol. %% */

#define etCHARX 8 /* Characters. %c */

#define etSQLESCAPE 9 /* Strings with '\'' doubled. %q */

#define etSQLESCAPE2 10 /* Strings with '\'' doubled and enclosed in '',

#define etTOKEN 11 /* a pointer to a Token structure */

#define etSRCITEM 12 /* a pointer to a SrcItem */

#define etPOINTER 13 /* The %p conversion */

#define etSQLESCAPE3 14 /* %w -> Strings with '\"' doubled */

#define etORDINAL 15 /* %r -> 1st, 2nd, 3rd, 4th, etc. English only */

#define etDECIMAL 16 /* %d or %u, but not %x, %o */

#define etINVALID 17 /* Any unrecognized conversion type */

typedef unsigned char etByte;

typedef struct et_info { /* Information about each format field */

} et_info;

#define FLAG_SIGNED 1 /* True if the value to convert is signed */

#define FLAG_STRING 4 /* Allow infinite precision */

static const char aDigits[] = "0123456789ABCDEF0123456789abcdef";

static const char aPrefix[] = "-x0\000X0";

static const et_info fmtinfo[] = {

{ 'd', 10, 1, etDECIMAL, 0, 0 },

{ 's', 0, 4, etSTRING, 0, 0 },

{ 'g', 0, 1, etGENERIC, 30, 0 },

{ 'z', 0, 4, etDYNSTRING, 0, 0 },

{ 'q', 0, 4, etSQLESCAPE, 0, 0 },

{ 'Q', 0, 4, etSQLESCAPE2, 0, 0 },

{ 'w', 0, 4, etSQLESCAPE3, 0, 0 },

{ 'c', 0, 0, etCHARX, 0, 0 },

{ 'o', 8, 0, etRADIX, 0, 2 },

{ 'u', 10, 0, etDECIMAL, 0, 0 },

{ 'x', 16, 0, etRADIX, 16, 1 },

{ 'X', 16, 0, etRADIX, 0, 4 },

#ifndef SQLITE_OMIT_FLOATING_POINT

{ 'f', 0, 1, etFLOAT, 0, 0 },

{ 'e', 0, 1, etEXP, 30, 0 },

{ 'E', 0, 1, etEXP, 14, 0 },

{ 'G', 0, 1, etGENERIC, 14, 0 },

{ 'i', 10, 1, etDECIMAL, 0, 0 },

{ 'n', 0, 0, etSIZE, 0, 0 },

{ '%', 0, 0, etPERCENT, 0, 0 },

{ 'p', 16, 0, etPOINTER, 0, 1 },

/* All the rest are undocumented and are for internal use only */

{ 'T', 0, 0, etTOKEN, 0, 0 },

{ 'S', 0, 0, etSRCITEM, 0, 0 },

{ 'r', 10, 1, etORDINAL, 0, 0 },

};

void sqlite3StrAccumSetError(StrAccum *p, u8 eError){

assert( eError==SQLITE_NOMEM || eError==SQLITE_TOOBIG );

p->accError = eError;

if( p->mxAlloc ) sqlite3_str_reset(p);

if( eError==SQLITE_TOOBIG ) sqlite3ErrorToParser(p->db, eError);

}

static sqlite3_int64 getIntArg(PrintfArguments *p){

if( p->nArg<=p->nUsed ) return 0;

return sqlite3_value_int64(p->apArg[p->nUsed++]);

}

static double getDoubleArg(PrintfArguments *p){

if( p->nArg<=p->nUsed ) return 0.0;

return sqlite3_value_double(p->apArg[p->nUsed++]);

}

static char *getTextArg(PrintfArguments *p){

if( p->nArg<=p->nUsed ) return 0;

return (char*)sqlite3_value_text(p->apArg[p->nUsed++]);

}

static char *printfTempBuf(sqlite3_str *pAccum, sqlite3_int64 n){

char *z;

if( pAccum->accError ) return 0;

if( n>pAccum->nAlloc && n>pAccum->mxAlloc ){

sqlite3StrAccumSetError(pAccum, SQLITE_TOOBIG);

return 0;

}

z = sqlite3DbMallocRaw(pAccum->db, n);

if( z==0 ){

sqlite3StrAccumSetError(pAccum, SQLITE_NOMEM);

}

return z;

}

#ifndef SQLITE_PRINT_BUF_SIZE

# define SQLITE_PRINT_BUF_SIZE 70

#define etBUFSIZE SQLITE_PRINT_BUF_SIZE /* Size of the output buffer */

#ifndef SQLITE_PRINTF_PRECISION_LIMIT

# define SQLITE_FP_PRECISION_LIMIT 100000000

void sqlite3_str_vappendf(

){

int c; /* Next character in the format string */

char *bufpt; /* Pointer to the conversion buffer */

int precision; /* Precision of the current field */

int length; /* Length of the field */

int idx; /* A general purpose loop counter */

int width; /* Width of the current field */

etByte flag_leftjustify; /* True if "-" flag is present */

etByte flag_prefix; /* '+' or ' ' or 0 for prefix */

etByte flag_alternateform; /* True if "#" flag is present */

etByte flag_altform2; /* True if "!" flag is present */

etByte flag_zeropad; /* True if field width constant starts with zero */

etByte flag_long; /* 1 for the "l" flag, 2 for "ll", 0 by default */

etByte done; /* Loop termination flag */

etByte cThousand; /* Thousands separator for %d and %u */

etByte xtype = etINVALID; /* Conversion paradigm */

u8 bArgList; /* True for SQLITE_PRINTF_SQLFUNC */

char prefix; /* Prefix character. "+" or "-" or " " or '\0'. */

sqlite_uint64 longvalue; /* Value for integer types */

double realvalue; /* Value for real types */

const et_info *infop; /* Pointer to the appropriate info structure */

char *zOut; /* Rendering buffer */

int nOut; /* Size of the rendering buffer */

char *zExtra = 0; /* Malloced memory used by some conversion */

int exp, e2; /* exponent of real numbers */

etByte flag_dp; /* True if decimal point should be shown */

etByte flag_rtz; /* True if trailing zeros should be removed */

PrintfArguments *pArgList = 0; /* Arguments for SQLITE_PRINTF_SQLFUNC */

char buf[etBUFSIZE]; /* Conversion buffer */

/* pAccum never starts out with an empty buffer that was obtained from

assert( pAccum->nChar>0 || (pAccum->printfFlags&SQLITE_PRINTF_MALLOCED)==0 );

bufpt = 0;

if( (pAccum->printfFlags & SQLITE_PRINTF_SQLFUNC)!=0 ){

pArgList = va_arg(ap, PrintfArguments*);

bArgList = 1;

}else{

bArgList = 0;

}

for(; (c=(*fmt))!=0; ++fmt){

if( c!='%' ){

bufpt = (char *)fmt;

#if HAVE_STRCHRNUL

fmt = strchrnul(fmt, '%');

do{ fmt++; }while( *fmt && *fmt != '%' );

sqlite3_str_append(pAccum, bufpt, (int)(fmt - bufpt));

if( *fmt==0 ) break;

}

if( (c=(*++fmt))==0 ){

sqlite3_str_append(pAccum, "%", 1);

break;

}

/* Find out what flags are present */

flag_leftjustify = flag_prefix = cThousand =

flag_alternateform = flag_altform2 = flag_zeropad = 0;

done = 0;

width = 0;

flag_long = 0;

precision = -1;

do{

switch( c ){

case '-': flag_leftjustify = 1; break;

case '+': flag_prefix = '+'; break;

case ' ': flag_prefix = ' '; break;

case '#': flag_alternateform = 1; break;

case '!': flag_altform2 = 1; break;

case '0': flag_zeropad = 1; break;

case ',': cThousand = ','; break;

default: done = 1; break;

case 'l': {

flag_long = 1;

c = *++fmt;

if( c=='l' ){

c = *++fmt;

flag_long = 2;

}

done = 1;

break;

}

case '1': case '2': case '3': case '4': case '5':

case '6': case '7': case '8': case '9': {

unsigned wx = c - '0';

while( (c = *++fmt)>='0' && c<='9' ){

wx = wx*10 + c - '0';

}

testcase( wx>0x7fffffff );

width = wx & 0x7fffffff;

#ifdef SQLITE_PRINTF_PRECISION_LIMIT

if( width>SQLITE_PRINTF_PRECISION_LIMIT ){

width = SQLITE_PRINTF_PRECISION_LIMIT;

}

if( c!='.' && c!='l' ){

done = 1;

}else{

fmt--;

}

break;

}

case '*': {

if( bArgList ){

width = (int)getIntArg(pArgList);

}else{

width = va_arg(ap,int);

}

if( width<0 ){

flag_leftjustify = 1;

width = width >= -2147483647 ? -width : 0;

}

#ifdef SQLITE_PRINTF_PRECISION_LIMIT

if( width>SQLITE_PRINTF_PRECISION_LIMIT ){

width = SQLITE_PRINTF_PRECISION_LIMIT;

}

if( (c = fmt[1])!='.' && c!='l' ){

c = *++fmt;

done = 1;

}

break;

}

case '.': {

c = *++fmt;

if( c=='*' ){

if( bArgList ){

precision = (int)getIntArg(pArgList);

}else{

precision = va_arg(ap,int);

}

if( precision<0 ){

precision = precision >= -2147483647 ? -precision : -1;

}

c = *++fmt;

}else{

unsigned px = 0;

while( c>='0' && c<='9' ){

px = px*10 + c - '0';

c = *++fmt;

}

testcase( px>0x7fffffff );

precision = px & 0x7fffffff;

}

#ifdef SQLITE_PRINTF_PRECISION_LIMIT

if( precision>SQLITE_PRINTF_PRECISION_LIMIT ){

precision = SQLITE_PRINTF_PRECISION_LIMIT;

}

if( c=='l' ){

--fmt;

}else{

done = 1;

}

break;

}

}

}while( !done && (c=(*++fmt))!=0 );

/* Fetch the info entry for the field */

infop = &fmtinfo[0];

xtype = etINVALID;

for(idx=0; idx<ArraySize(fmtinfo); idx++){

if( c==fmtinfo[idx].fmttype ){

infop = &fmtinfo[idx];

xtype = infop->type;

break;

}

}

/*

assert( width>=0 );

assert( precision>=(-1) );

switch( xtype ){

case etPOINTER:

flag_long = sizeof(char*)==sizeof(i64) ? 2 :

sizeof(char*)==sizeof(long int) ? 1 : 0;

/* no break */ deliberate_fall_through

case etORDINAL:

case etRADIX:

cThousand = 0;

/* no break */ deliberate_fall_through

case etDECIMAL:

if( infop->flags & FLAG_SIGNED ){

i64 v;

if( bArgList ){

v = getIntArg(pArgList);

}else if( flag_long ){

if( flag_long==2 ){

v = va_arg(ap,i64) ;

}else{

v = va_arg(ap,long int);

}

}else{

v = va_arg(ap,int);

}

if( v<0 ){

testcase( v==SMALLEST_INT64 );

testcase( v==(-1) );

longvalue = ~v;

longvalue++;

prefix = '-';

}else{

longvalue = v;

prefix = flag_prefix;

}

}else{

if( bArgList ){

longvalue = (u64)getIntArg(pArgList);

}else if( flag_long ){

if( flag_long==2 ){

longvalue = va_arg(ap,u64);

}else{

longvalue = va_arg(ap,unsigned long int);

}

}else{

longvalue = va_arg(ap,unsigned int);

}

prefix = 0;

}

if( longvalue==0 ) flag_alternateform = 0;

if( flag_zeropad && precision<width-(prefix!=0) ){

precision = width-(prefix!=0);

}

if( precision<etBUFSIZE-10-etBUFSIZE/3 ){

nOut = etBUFSIZE;

zOut = buf;

}else{

u64 n;

n = (u64)precision + 10;

if( cThousand ) n += precision/3;

zOut = zExtra = printfTempBuf(pAccum, n);

if( zOut==0 ) return;

nOut = (int)n;

}

bufpt = &zOut[nOut-1];

if( xtype==etORDINAL ){

static const char zOrd[] = "thstndrd";

int x = (int)(longvalue % 10);

if( x>=4 || (longvalue/10)%10==1 ){

x = 0;

}

*(--bufpt) = zOrd[x*2+1];

*(--bufpt) = zOrd[x*2];

}

{

const char *cset = &aDigits[infop->charset];

u8 base = infop->base;

do{ /* Convert to ascii */

*(--bufpt) = cset[longvalue%base];

longvalue = longvalue/base;

}while( longvalue>0 );

}

length = (int)(&zOut[nOut-1]-bufpt);

while( precision>length ){

*(--bufpt) = '0'; /* Zero pad */

length++;

}

if( cThousand ){

int nn = (length - 1)/3; /* Number of "," to insert */

int ix = (length - 1)%3 + 1;

bufpt -= nn;

for(idx=0; nn>0; idx++){

bufpt[idx] = bufpt[idx+nn];

ix--;

if( ix==0 ){

bufpt[++idx] = cThousand;

nn--;

ix = 3;

}

}

}

if( prefix ) *(--bufpt) = prefix; /* Add sign */

if( flag_alternateform && infop->prefix ){ /* Add "0" or "0x" */

const char *pre;

char x;

pre = &aPrefix[infop->prefix];

for(; (x=(*pre))!=0; pre++) *(--bufpt) = x;

}

length = (int)(&zOut[nOut-1]-bufpt);

break;

case etFLOAT:

case etEXP:

case etGENERIC: {

FpDecode s;

int iRound;

int j;

if( bArgList ){

realvalue = getDoubleArg(pArgList);

}else{

realvalue = va_arg(ap,double);

}

if( precision<0 ) precision = 6; /* Set default precision */

#ifdef SQLITE_FP_PRECISION_LIMIT

if( precision>SQLITE_FP_PRECISION_LIMIT ){

precision = SQLITE_FP_PRECISION_LIMIT;

}

if( xtype==etFLOAT ){

iRound = -precision;

}else if( xtype==etGENERIC ){

iRound = precision;

}else{

iRound = precision+1;

}

sqlite3FpDecode(&s, realvalue, iRound, flag_altform2 ? 26 : 16);

if( s.isSpecial ){

if( s.isSpecial==2 ){

bufpt = flag_zeropad ? "null" : "NaN";

length = sqlite3Strlen30(bufpt);

break;

}else if( flag_zeropad ){

s.z[0] = '9';

s.iDP = 1000;

s.n = 1;

}else{

memcpy(buf, "-Inf", 5);

bufpt = buf;

if( s.sign=='-' ){

/* no-op */

}else if( flag_prefix ){

buf[0] = flag_prefix;

}else{

bufpt++;

}

length = sqlite3Strlen30(bufpt);

break;

}

}

if( s.sign=='-' ){

prefix = '-';

}else{

prefix = flag_prefix;

}

exp = s.iDP-1;

if( xtype==etGENERIC && precision>0 ) precision--;

/*

if( xtype==etGENERIC ){

flag_rtz = !flag_alternateform;

if( exp<-4 || exp>precision ){

xtype = etEXP;

}else{

precision = precision - exp;

xtype = etFLOAT;

}

}else{

flag_rtz = flag_altform2;

}

if( xtype==etEXP ){

e2 = 0;

}else{

e2 = s.iDP - 1;

}

bufpt = buf;

{

i64 szBufNeeded; /* Size of a temporary buffer needed */

szBufNeeded = MAX(e2,0)+(i64)precision+(i64)width+15;

if( cThousand && e2>0 ) szBufNeeded += (e2+2)/3;

if( szBufNeeded > etBUFSIZE ){

bufpt = zExtra = printfTempBuf(pAccum, szBufNeeded);

if( bufpt==0 ) return;

}

}

zOut = bufpt;

flag_dp = (precision>0 ?1:0) | flag_alternateform | flag_altform2;

/* The sign in front of the number */

if( prefix ){

*(bufpt++) = prefix;

}

/* Digits prior to the decimal point */

j = 0;

if( e2<0 ){

*(bufpt++) = '0';

}else{

for(; e2>=0; e2--){

*(bufpt++) = j<s.n ? s.z[j++] : '0';

if( cThousand && (e2%3)==0 && e2>1 ) *(bufpt++) = ',';

}

}

/* The decimal point */

if( flag_dp ){

*(bufpt++) = '.';

}

/* "0" digits after the decimal point but before the first

for(e2++; e2<0 && precision>0; precision--, e2++){

*(bufpt++) = '0';

}

/* Significant digits after the decimal point */

while( (precision--)>0 ){

*(bufpt++) = j<s.n ? s.z[j++] : '0';

}

/* Remove trailing zeros and the "." if no digits follow the "." */

if( flag_rtz && flag_dp ){

while( bufpt[-1]=='0' ) *(--bufpt) = 0;

assert( bufpt>zOut );

if( bufpt[-1]=='.' ){

if( flag_altform2 ){

*(bufpt++) = '0';

}else{

*(--bufpt) = 0;

}

}

}

/* Add the "eNNN" suffix */

if( xtype==etEXP ){

exp = s.iDP - 1;

*(bufpt++) = aDigits[infop->charset];

if( exp<0 ){

*(bufpt++) = '-'; exp = -exp;

}else{

*(bufpt++) = '+';

}

if( exp>=100 ){

*(bufpt++) = (char)((exp/100)+'0'); /* 100's digit */

exp %= 100;

}

*(bufpt++) = (char)(exp/10+'0'); /* 10's digit */

*(bufpt++) = (char)(exp%10+'0'); /* 1's digit */

}

*bufpt = 0;

/* The converted number is in buf[] and zero terminated. Output it.

length = (int)(bufpt-zOut);

bufpt = zOut;

/* Special case: Add leading zeros if the flag_zeropad flag is

if( flag_zeropad && !flag_leftjustify && length < width){

int i;

int nPad = width - length;

for(i=width; i>=nPad; i--){

bufpt[i] = bufpt[i-nPad];

}

i = prefix!=0;

while( nPad-- ) bufpt[i++] = '0';

length = width;

}

break;

}

case etSIZE:

if( !bArgList ){

*(va_arg(ap,int*)) = pAccum->nChar;

}

length = width = 0;

break;

case etPERCENT:

buf[0] = '%';

bufpt = buf;

length = 1;

break;

case etCHARX:

if( bArgList ){

bufpt = getTextArg(pArgList);

length = 1;

if( bufpt ){

buf[0] = c = *(bufpt++);

if( (c&0xc0)==0xc0 ){

while( length<4 && (bufpt[0]&0xc0)==0x80 ){

buf[length++] = *(bufpt++);

}

}

}else{

buf[0] = 0;

}

}else{

unsigned int ch = va_arg(ap,unsigned int);

if( ch<0x00080 ){

buf[0] = ch & 0xff;

length = 1;

}else if( ch<0x00800 ){

buf[0] = 0xc0 + (u8)((ch>>6)&0x1f);

buf[1] = 0x80 + (u8)(ch & 0x3f);

length = 2;

}else if( ch<0x10000 ){

buf[0] = 0xe0 + (u8)((ch>>12)&0x0f);

buf[1] = 0x80 + (u8)((ch>>6) & 0x3f);

buf[2] = 0x80 + (u8)(ch & 0x3f);

length = 3;

}else{

buf[0] = 0xf0 + (u8)((ch>>18) & 0x07);

buf[1] = 0x80 + (u8)((ch>>12) & 0x3f);

buf[2] = 0x80 + (u8)((ch>>6) & 0x3f);

buf[3] = 0x80 + (u8)(ch & 0x3f);

length = 4;

}

}

if( precision>1 ){

i64 nPrior = 1;

width -= precision-1;

if( width>1 && !flag_leftjustify ){

sqlite3_str_appendchar(pAccum, width-1, ' ');

width = 0;

}

sqlite3_str_append(pAccum, buf, length);

precision--;

while( precision > 1 ){

i64 nCopyBytes;

if( nPrior > precision-1 ) nPrior = precision - 1;

nCopyBytes = length*nPrior;

if( nCopyBytes + pAccum->nChar >= pAccum->nAlloc ){

sqlite3StrAccumEnlarge(pAccum, nCopyBytes);

}

if( pAccum->accError ) break;

sqlite3_str_append(pAccum,

&pAccum->zText[pAccum->nChar-nCopyBytes], nCopyBytes);

precision -= nPrior;

nPrior *= 2;

}

}

bufpt = buf;

flag_altform2 = 1;

goto adjust_width_for_utf8;

case etSTRING:

case etDYNSTRING:

if( bArgList ){

bufpt = getTextArg(pArgList);

xtype = etSTRING;

}else{

bufpt = va_arg(ap,char*);

}

if( bufpt==0 ){

bufpt = "";

}else if( xtype==etDYNSTRING ){

if( pAccum->nChar==0

&& pAccum->mxAlloc

&& width==0

&& precision<0

&& pAccum->accError==0

){

/* Special optimization for sqlite3_mprintf("%z..."):

assert( (pAccum->printfFlags&SQLITE_PRINTF_MALLOCED)==0 );

pAccum->zText = bufpt;

pAccum->nAlloc = sqlite3DbMallocSize(pAccum->db, bufpt);

pAccum->nChar = 0x7fffffff & (int)strlen(bufpt);

pAccum->printfFlags |= SQLITE_PRINTF_MALLOCED;

length = 0;

break;

}

zExtra = bufpt;

}

if( precision>=0 ){

if( flag_altform2 ){

/* Set length to the number of bytes needed in order to display

unsigned char *z = (unsigned char*)bufpt;

while( precision-- > 0 && z[0] ){

SQLITE_SKIP_UTF8(z);

}

length = (int)(z - (unsigned char*)bufpt);

}else{

for(length=0; length<precision && bufpt[length]; length++){}

}

}else{

length = 0x7fffffff & (int)strlen(bufpt);

}

adjust_width_for_utf8:

if( flag_altform2 && width>0 ){

/* Adjust width to account for extra bytes in UTF-8 characters */

int ii = length - 1;

while( ii>=0 ) if( (bufpt[ii--] & 0xc0)==0x80 ) width++;

}

break;

case etSQLESCAPE: /* %q: Escape ' characters */

case etSQLESCAPE2: /* %Q: Escape ' and enclose in '...' */

case etSQLESCAPE3: { /* %w: Escape " characters */

i64 i, j, k, n;

int needQuote, isnull;

char ch;

char q = ((xtype==etSQLESCAPE3)?'"':'\''); /* Quote character */

char *escarg;

if( bArgList ){

escarg = getTextArg(pArgList);

}else{

escarg = va_arg(ap,char*);

}

isnull = escarg==0;

if( isnull ) escarg = (xtype==etSQLESCAPE2 ? "NULL" : "(NULL)");

/* For %q, %Q, and %w, the precision is the number of bytes (or

k = precision;

for(i=n=0; k!=0 && (ch=escarg[i])!=0; i++, k--){

if( ch==q ) n++;

if( flag_altform2 && (ch&0xc0)==0xc0 ){

while( (escarg[i+1]&0xc0)==0x80 ){ i++; }

}

}

needQuote = !isnull && xtype==etSQLESCAPE2;

n += i + 3;

if( n>etBUFSIZE ){

bufpt = zExtra = printfTempBuf(pAccum, n);

if( bufpt==0 ) return;

}else{

bufpt = buf;

}

j = 0;

if( needQuote ) bufpt[j++] = q;

k = i;

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

bufpt[j++] = ch = escarg[i];

if( ch==q ) bufpt[j++] = ch;

}

if( needQuote ) bufpt[j++] = q;

bufpt[j] = 0;

length = j;

goto adjust_width_for_utf8;

}

case etTOKEN: {

if( (pAccum->printfFlags & SQLITE_PRINTF_INTERNAL)==0 ) return;

if( flag_alternateform ){

/* %#T means an Expr pointer that uses Expr.u.zToken */

Expr *pExpr = va_arg(ap,Expr*);

if( ALWAYS(pExpr) && ALWAYS(!ExprHasProperty(pExpr,EP_IntValue)) ){

sqlite3_str_appendall(pAccum, (const char*)pExpr->u.zToken);

sqlite3RecordErrorOffsetOfExpr(pAccum->db, pExpr);

}

}else{

/* %T means a Token pointer */

Token *pToken = va_arg(ap, Token*);

assert( bArgList==0 );

if( pToken && pToken->n ){

sqlite3_str_append(pAccum, (const char*)pToken->z, pToken->n);

sqlite3RecordErrorByteOffset(pAccum->db, pToken->z);

}

}

length = width = 0;

break;

}

case etSRCITEM: {

SrcItem *pItem;

if( (pAccum->printfFlags & SQLITE_PRINTF_INTERNAL)==0 ) return;

pItem = va_arg(ap, SrcItem*);

assert( bArgList==0 );

if( pItem->zAlias && !flag_altform2 ){

sqlite3_str_appendall(pAccum, pItem->zAlias);

}else if( pItem->zName ){

if( pItem->zDatabase ){

sqlite3_str_appendall(pAccum, pItem->zDatabase);

sqlite3_str_append(pAccum, ".", 1);

}

sqlite3_str_appendall(pAccum, pItem->zName);

}else if( pItem->zAlias ){

sqlite3_str_appendall(pAccum, pItem->zAlias);

}else{

Select *pSel = pItem->pSelect;

assert( pSel!=0 );

if( pSel->selFlags & SF_NestedFrom ){

sqlite3_str_appendf(pAccum, "(join-%u)", pSel->selId);

}else{

sqlite3_str_appendf(pAccum, "(subquery-%u)", pSel->selId);

}

}

length = width = 0;

break;

}

default: {

assert( xtype==etINVALID );

return;

}

}/* End switch over the format type */

/*

width -= length;

if( width>0 ){

if( !flag_leftjustify ) sqlite3_str_appendchar(pAccum, width, ' ');

sqlite3_str_append(pAccum, bufpt, length);

if( flag_leftjustify ) sqlite3_str_appendchar(pAccum, width, ' ');

}else{

sqlite3_str_append(pAccum, bufpt, length);

}

if( zExtra ){

sqlite3DbFree(pAccum->db, zExtra);

zExtra = 0;

}

}/* End for loop over the format string */

} /* End of function */

void sqlite3RecordErrorByteOffset(sqlite3 *db, const char *z){

const Parse *pParse;

const char *zText;

const char *zEnd;

assert( z!=0 );

if( NEVER(db==0) ) return;

if( db->errByteOffset!=(-2) ) return;

pParse = db->pParse;

if( NEVER(pParse==0) ) return;

zText =pParse->zTail;

if( NEVER(zText==0) ) return;

zEnd = &zText[strlen(zText)];

if( SQLITE_WITHIN(z,zText,zEnd) ){

db->errByteOffset = (int)(z-zText);

}

}

void sqlite3RecordErrorOffsetOfExpr(sqlite3 *db, const Expr *pExpr){

while( pExpr

&& (ExprHasProperty(pExpr,EP_OuterON|EP_InnerON) || pExpr->w.iOfst<=0)

){

pExpr = pExpr->pLeft;

}

if( pExpr==0 ) return;

db->errByteOffset = pExpr->w.iOfst;

}

int sqlite3StrAccumEnlarge(StrAccum *p, i64 N){

char *zNew;

assert( p->nChar+N >= p->nAlloc ); /* Only called if really needed */

if( p->accError ){

testcase(p->accError==SQLITE_TOOBIG);

testcase(p->accError==SQLITE_NOMEM);

return 0;

}

if( p->mxAlloc==0 ){

sqlite3StrAccumSetError(p, SQLITE_TOOBIG);

return p->nAlloc - p->nChar - 1;

}else{

char *zOld = isMalloced(p) ? p->zText : 0;

i64 szNew = p->nChar + N + 1;

if( szNew+p->nChar<=p->mxAlloc ){

/* Force exponential buffer size growth as long as it does not overflow,

szNew += p->nChar;

}

if( szNew > p->mxAlloc ){

sqlite3_str_reset(p);

sqlite3StrAccumSetError(p, SQLITE_TOOBIG);

return 0;

}else{

p->nAlloc = (int)szNew;

}

if( p->db ){

zNew = sqlite3DbRealloc(p->db, zOld, p->nAlloc);

}else{

zNew = sqlite3Realloc(zOld, p->nAlloc);

}

if( zNew ){

assert( p->zText!=0 || p->nChar==0 );

if( !isMalloced(p) && p->nChar>0 ) memcpy(zNew, p->zText, p->nChar);

p->zText = zNew;

p->nAlloc = sqlite3DbMallocSize(p->db, zNew);

p->printfFlags |= SQLITE_PRINTF_MALLOCED;

}else{

sqlite3_str_reset(p);

sqlite3StrAccumSetError(p, SQLITE_NOMEM);

return 0;

}

}

assert( N>=0 && N<=0x7fffffff );

return (int)N;

}

void sqlite3_str_appendchar(sqlite3_str *p, int N, char c){

testcase( p->nChar + (i64)N > 0x7fffffff );

if( p->nChar+(i64)N >= p->nAlloc && (N = sqlite3StrAccumEnlarge(p, N))<=0 ){

return;

}

while( (N--)>0 ) p->zText[p->nChar++] = c;

}