#include "sqliteInt.h"
#define etRADIX 1
#define etFLOAT 2
#define etEXP 3
#define etGENERIC 4
#define etSIZE 5
#define etSTRING 6
#define etDYNSTRING 7
#define etPERCENT 8
#define etCHARX 9
#define etCHARLIT 10
#define etSQLESCAPE 11
#define etSQLESCAPE2 12
#define etTOKEN 13
#define etSRCLIST 14
#define etPOINTER 15
typedef unsigned char etByte;
typedef struct et_info {
char fmttype;
etByte base;
etByte flags;
etByte type;
etByte charset;
etByte prefix;
} et_info;
#define FLAG_SIGNED 1
#define FLAG_INTERN 2
#define FLAG_STRING 4
static const char aDigits[] = "0123456789ABCDEF0123456789abcdef";
static const char aPrefix[] = "-x0\000X0";
static const et_info fmtinfo[] = {
{ 'd', 10, 1, etRADIX, 0, 0 },
{ 's', 0, 4, etSTRING, 0, 0 },
{ 'g', 0, 1, etGENERIC, 30, 0 },
{ 'z', 0, 6, etDYNSTRING, 0, 0 },
{ 'q', 0, 4, etSQLESCAPE, 0, 0 },
{ 'Q', 0, 4, etSQLESCAPE2, 0, 0 },
{ 'c', 0, 0, etCHARX, 0, 0 },
{ 'o', 8, 0, etRADIX, 0, 2 },
{ 'u', 10, 0, etRADIX, 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 },
#endif
{ 'i', 10, 1, etRADIX, 0, 0 },
{ 'n', 0, 0, etSIZE, 0, 0 },
{ '%', 0, 0, etPERCENT, 0, 0 },
{ 'p', 16, 0, etPOINTER, 0, 1 },
{ 'T', 0, 2, etTOKEN, 0, 0 },
{ 'S', 0, 2, etSRCLIST, 0, 0 },
};
#define etNINFO (sizeof(fmtinfo)/sizeof(fmtinfo[0]))
#ifndef SQLITE_OMIT_FLOATING_POINT
static int et_getdigit(LONGDOUBLE_TYPE *val, int *cnt){
int digit;
LONGDOUBLE_TYPE d;
if( (*cnt)++ >= 16 ) return '0';
digit = (int)*val;
d = digit;
digit += '0';
*val = (*val - d)*10.0;
return digit;
}
#endif
#ifndef SQLITE_PRINT_BUF_SIZE
# define SQLITE_PRINT_BUF_SIZE 350
#endif
#define etBUFSIZE SQLITE_PRINT_BUF_SIZE
static int vxprintf(
void (*func)(void*,const char*,int),
void *arg,
int useExtended,
const char *fmt,
va_list ap
){
int c;
char *bufpt;
int precision;
int length;
int idx;
int count;
int width;
etByte flag_leftjustify;
etByte flag_plussign;
etByte flag_blanksign;
etByte flag_alternateform;
etByte flag_altform2;
etByte flag_zeropad;
etByte flag_long;
etByte flag_longlong;
etByte done;
sqlite_uint64 longvalue;
LONGDOUBLE_TYPE realvalue;
const et_info *infop;
char buf[etBUFSIZE];
char prefix;
etByte errorflag = 0;
etByte xtype;
char *zExtra;
static const char spaces[] =
" ";
#define etSPACESIZE (sizeof(spaces)-1)
#ifndef SQLITE_OMIT_FLOATING_POINT
int exp, e2;
double rounder;
etByte flag_dp;
etByte flag_rtz;
etByte flag_exp;
int nsd;
#endif
func(arg,"",0);
count = length = 0;
bufpt = 0;
for(; (c=(*fmt))!=0; ++fmt){
if( c!='%' ){
int amt;
bufpt = (char *)fmt;
amt = 1;
while( (c=(*++fmt))!='%' && c!=0 ) amt++;
(*func)(arg,bufpt,amt);
count += amt;
if( c==0 ) break;
}
if( (c=(*++fmt))==0 ){
errorflag = 1;
(*func)(arg,"%",1);
count++;
break;
}
flag_leftjustify = flag_plussign = flag_blanksign =
flag_alternateform = flag_altform2 = flag_zeropad = 0;
done = 0;
do{
switch( c ){
case '-': flag_leftjustify = 1; break;
case '+': flag_plussign = 1; break;
case ' ': flag_blanksign = 1; break;
case '#': flag_alternateform = 1; break;
case '!': flag_altform2 = 1; break;
case '0': flag_zeropad = 1; break;
default: done = 1; break;
}
}while( !done && (c=(*++fmt))!=0 );
width = 0;
if( c=='*' ){
width = va_arg(ap,int);
if( width<0 ){
flag_leftjustify = 1;
width = -width;
}
c = *++fmt;
}else{
while( c>='0' && c<='9' ){
width = width*10 + c - '0';
c = *++fmt;
}
}
if( width > etBUFSIZE-10 ){
width = etBUFSIZE-10;
}
if( c=='.' ){
precision = 0;
c = *++fmt;
if( c=='*' ){
precision = va_arg(ap,int);
if( precision<0 ) precision = -precision;
c = *++fmt;
}else{
while( c>='0' && c<='9' ){
precision = precision*10 + c - '0';
c = *++fmt;
}
}
}else{
precision = -1;
}
if( c=='l' ){
flag_long = 1;
c = *++fmt;
if( c=='l' ){
flag_longlong = 1;
c = *++fmt;
}else{
flag_longlong = 0;
}
}else{
flag_long = flag_longlong = 0;
}
infop = 0;
for(idx=0; idx<etNINFO; idx++){
if( c==fmtinfo[idx].fmttype ){
infop = &fmtinfo[idx];
if( useExtended || (infop->flags & FLAG_INTERN)==0 ){
xtype = infop->type;
}else{
return -1;
}
break;
}
}
zExtra = 0;
if( infop==0 ){
return -1;
}
if( precision>etBUFSIZE-40 && (infop->flags & FLAG_STRING)==0 ){
precision = etBUFSIZE-40;
}
switch( xtype ){
case etPOINTER:
flag_longlong = sizeof(char*)==sizeof(i64);
flag_long = sizeof(char*)==sizeof(long int);
case etRADIX:
if( infop->flags & FLAG_SIGNED ){
i64 v;
if( flag_longlong ) v = va_arg(ap,i64);
else if( flag_long ) v = va_arg(ap,long int);
else v = va_arg(ap,int);
if( v<0 ){
longvalue = -v;
prefix = '-';
}else{
longvalue = v;
if( flag_plussign ) prefix = '+';
else if( flag_blanksign ) prefix = ' ';
else prefix = 0;
}
}else{
if( flag_longlong ) longvalue = va_arg(ap,u64);
else if( flag_long ) 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);
}
bufpt = &buf[etBUFSIZE-1];
{
register const char *cset;
register int base;
cset = &aDigits[infop->charset];
base = infop->base;
do{
*(--bufpt) = cset[longvalue%base];
longvalue = longvalue/base;
}while( longvalue>0 );
}
length = &buf[etBUFSIZE-1]-bufpt;
for(idx=precision-length; idx>0; idx--){
*(--bufpt) = '0';
}
if( prefix ) *(--bufpt) = prefix;
if( flag_alternateform && infop->prefix ){
const char *pre;
char x;
pre = &aPrefix[infop->prefix];
if( *bufpt!=pre[0] ){
for(; (x=(*pre))!=0; pre++) *(--bufpt) = x;
}
}
length = &buf[etBUFSIZE-1]-bufpt;
break;
case etFLOAT:
case etEXP:
case etGENERIC:
realvalue = va_arg(ap,double);
#ifndef SQLITE_OMIT_FLOATING_POINT
if( precision<0 ) precision = 6;
if( precision>etBUFSIZE/2-10 ) precision = etBUFSIZE/2-10;
if( realvalue<0.0 ){
realvalue = -realvalue;
prefix = '-';
}else{
if( flag_plussign ) prefix = '+';
else if( flag_blanksign ) prefix = ' ';
else prefix = 0;
}
if( xtype==etGENERIC && precision>0 ) precision--;
#if 0
for(idx=precision, rounder=0.4999; idx>0; idx--, rounder*=0.1);
#else
for(idx=precision, rounder=0.5; idx>0; idx--, rounder*=0.1){}
#endif
if( xtype==etFLOAT ) realvalue += rounder;
exp = 0;
if( realvalue>0.0 ){
while( realvalue>=1e32 && exp<=350 ){ realvalue *= 1e-32; exp+=32; }
while( realvalue>=1e8 && exp<=350 ){ realvalue *= 1e-8; exp+=8; }
while( realvalue>=10.0 && exp<=350 ){ realvalue *= 0.1; exp++; }
while( realvalue<1e-8 && exp>=-350 ){ realvalue *= 1e8; exp-=8; }
while( realvalue<1.0 && exp>=-350 ){ realvalue *= 10.0; exp--; }
if( exp>350 || exp<-350 ){
bufpt = "NaN";
length = 3;
break;
}
}
bufpt = buf;
flag_exp = xtype==etEXP;
if( xtype!=etFLOAT ){
realvalue += rounder;
if( realvalue>=10.0 ){ realvalue *= 0.1; exp++; }
}
if( xtype==etGENERIC ){
flag_rtz = !flag_alternateform;
if( exp<-4 || exp>precision ){
xtype = etEXP;
}else{
precision = precision - exp;
xtype = etFLOAT;
}
}else{
flag_rtz = 0;
}
if( xtype==etEXP ){
e2 = 0;
}else{
e2 = exp;
}
nsd = 0;
flag_dp = (precision>0) | flag_alternateform | flag_altform2;
if( prefix ){
*(bufpt++) = prefix;
}
if( e2<0 ){
*(bufpt++) = '0';
}else{
for(; e2>=0; e2--){
*(bufpt++) = et_getdigit(&realvalue,&nsd);
}
}
if( flag_dp ){
*(bufpt++) = '.';
}
for(e2++; e2<0 && precision>0; precision--, e2++){
*(bufpt++) = '0';
}
while( (precision--)>0 ){
*(bufpt++) = et_getdigit(&realvalue,&nsd);
}
if( flag_rtz && flag_dp ){
while( bufpt[-1]=='0' ) *(--bufpt) = 0;
assert( bufpt>buf );
if( bufpt[-1]=='.' ){
if( flag_altform2 ){
*(bufpt++) = '0';
}else{
*(--bufpt) = 0;
}
}
}
if( flag_exp || (xtype==etEXP && exp) ){
*(bufpt++) = aDigits[infop->charset];
if( exp<0 ){
*(bufpt++) = '-'; exp = -exp;
}else{
*(bufpt++) = '+';
}
if( exp>=100 ){
*(bufpt++) = (exp/100)+'0';
exp %= 100;
}
*(bufpt++) = exp/10+'0';
*(bufpt++) = exp%10+'0';
}
*bufpt = 0;
length = bufpt-buf;
bufpt = buf;
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;
}
#endif
break;
case etSIZE:
*(va_arg(ap,int*)) = count;
length = width = 0;
break;
case etPERCENT:
buf[0] = '%';
bufpt = buf;
length = 1;
break;
case etCHARLIT:
case etCHARX:
c = buf[0] = (xtype==etCHARX ? va_arg(ap,int) : *++fmt);
if( precision>=0 ){
for(idx=1; idx<precision; idx++) buf[idx] = c;
length = precision;
}else{
length =1;
}
bufpt = buf;
break;
case etSTRING:
case etDYNSTRING:
bufpt = va_arg(ap,char*);
if( bufpt==0 ){
bufpt = "";
}else if( xtype==etDYNSTRING ){
zExtra = bufpt;
}
length = strlen(bufpt);
if( precision>=0 && precision<length ) length = precision;
break;
case etSQLESCAPE:
case etSQLESCAPE2: {
int i, j, n, ch, isnull;
int needQuote;
char *escarg = va_arg(ap,char*);
isnull = escarg==0;
if( isnull ) escarg = (xtype==etSQLESCAPE2 ? "NULL" : "(NULL)");
for(i=n=0; (ch=escarg[i])!=0; i++){
if( ch=='\'' ) n++;
}
needQuote = !isnull && xtype==etSQLESCAPE2;
n += i + 1 + needQuote*2;
if( n>etBUFSIZE ){
bufpt = zExtra = sqliteMalloc( n );
if( bufpt==0 ) return -1;
}else{
bufpt = buf;
}
j = 0;
if( needQuote ) bufpt[j++] = '\'';
for(i=0; (ch=escarg[i])!=0; i++){
bufpt[j++] = ch;
if( ch=='\'' ) bufpt[j++] = ch;
}
if( needQuote ) bufpt[j++] = '\'';
bufpt[j] = 0;
length = j;
break;
}
case etTOKEN: {
Token *pToken = va_arg(ap, Token*);
if( pToken && pToken->z ){
(*func)(arg, (char*)pToken->z, pToken->n);
}
length = width = 0;
break;
}
case etSRCLIST: {
SrcList *pSrc = va_arg(ap, SrcList*);
int k = va_arg(ap, int);
struct SrcList_item *pItem = &pSrc->a[k];
assert( k>=0 && k<pSrc->nSrc );
if( pItem->zDatabase && pItem->zDatabase[0] ){
(*func)(arg, pItem->zDatabase, strlen(pItem->zDatabase));
(*func)(arg, ".", 1);
}
(*func)(arg, pItem->zName, strlen(pItem->zName));
length = width = 0;
break;
}
}
if( !flag_leftjustify ){
register int nspace;
nspace = width-length;
if( nspace>0 ){
count += nspace;
while( nspace>=etSPACESIZE ){
(*func)(arg,spaces,etSPACESIZE);
nspace -= etSPACESIZE;
}
if( nspace>0 ) (*func)(arg,spaces,nspace);
}
}
if( length>0 ){
(*func)(arg,bufpt,length);
count += length;
}
if( flag_leftjustify ){
register int nspace;
nspace = width-length;
if( nspace>0 ){
count += nspace;
while( nspace>=etSPACESIZE ){
(*func)(arg,spaces,etSPACESIZE);
nspace -= etSPACESIZE;
}
if( nspace>0 ) (*func)(arg,spaces,nspace);
}
}
if( zExtra ){
sqliteFree(zExtra);
}
}
return errorflag ? -1 : count;
}
struct sgMprintf {
char *zBase;
char *zText;
int nChar;
int nTotal;
int nAlloc;
void *(*xRealloc)(void*,int);
};
static void mout(void *arg, const char *zNewText, int nNewChar){
struct sgMprintf *pM = (struct sgMprintf*)arg;
pM->nTotal += nNewChar;
if( pM->nChar + nNewChar + 1 > pM->nAlloc ){
if( pM->xRealloc==0 ){
nNewChar = pM->nAlloc - pM->nChar - 1;
}else{
pM->nAlloc = pM->nChar + nNewChar*2 + 1;
if( pM->zText==pM->zBase ){
pM->zText = pM->xRealloc(0, pM->nAlloc);
if( pM->zText && pM->nChar ){
memcpy(pM->zText, pM->zBase, pM->nChar);
}
}else{
char *zNew;
zNew = pM->xRealloc(pM->zText, pM->nAlloc);
if( zNew ){
pM->zText = zNew;
}
}
}
}
if( pM->zText ){
if( nNewChar>0 ){
memcpy(&pM->zText[pM->nChar], zNewText, nNewChar);
pM->nChar += nNewChar;
}
pM->zText[pM->nChar] = 0;
}
}
static char *base_vprintf(
void *(*xRealloc)(void*,int),
int useInternal,
char *zInitBuf,
int nInitBuf,
const char *zFormat,
va_list ap
){
struct sgMprintf sM;
sM.zBase = sM.zText = zInitBuf;
sM.nChar = sM.nTotal = 0;
sM.nAlloc = nInitBuf;
sM.xRealloc = xRealloc;
vxprintf(mout, &sM, useInternal, zFormat, ap);
if( xRealloc ){
if( sM.zText==sM.zBase ){
sM.zText = xRealloc(0, sM.nChar+1);
if( sM.zText ){
memcpy(sM.zText, sM.zBase, sM.nChar+1);
}
}else if( sM.nAlloc>sM.nChar+10 ){
char *zNew = xRealloc(sM.zText, sM.nChar+1);
if( zNew ){
sM.zText = zNew;
}
}
}
return sM.zText;
}
static void *printf_realloc(void *old, int size){
return sqliteRealloc(old,size);
}
char *sqlite3VMPrintf(const char *zFormat, va_list ap){
char zBase[SQLITE_PRINT_BUF_SIZE];
return base_vprintf(printf_realloc, 1, zBase, sizeof(zBase), zFormat, ap);
}
char *sqlite3MPrintf(const char *zFormat, ...){
va_list ap;
char *z;
char zBase[SQLITE_PRINT_BUF_SIZE];
va_start(ap, zFormat);
z = base_vprintf(printf_realloc, 1, zBase, sizeof(zBase), zFormat, ap);
va_end(ap);
return z;
}
char *sqlite3_vmprintf(const char *zFormat, va_list ap){
char zBase[SQLITE_PRINT_BUF_SIZE];
return base_vprintf(sqlite3_realloc, 0, zBase, sizeof(zBase), zFormat, ap);
}
char *sqlite3_mprintf(const char *zFormat, ...){
va_list ap;
char *z;
va_start(ap, zFormat);
z = sqlite3_vmprintf(zFormat, ap);
va_end(ap);
return z;
}
char *sqlite3_snprintf(int n, char *zBuf, const char *zFormat, ...){
char *z;
va_list ap;
va_start(ap,zFormat);
z = base_vprintf(0, 0, zBuf, n, zFormat, ap);
va_end(ap);
return z;
}
#if defined(SQLITE_TEST) || defined(SQLITE_DEBUG)
void sqlite3DebugPrintf(const char *zFormat, ...){
extern int getpid(void);
va_list ap;
char zBuf[500];
va_start(ap, zFormat);
base_vprintf(0, 0, zBuf, sizeof(zBuf), zFormat, ap);
va_end(ap);
fprintf(stdout,"%s", zBuf);
fflush(stdout);
}
#endif