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Unified Diff: third_party/sqlite/sqlite-src-3080704/src/printf.c

Issue 2363173002: [sqlite] Remove obsolete reference version 3.8.7.4. (Closed)
Patch Set: Created 4 years, 3 months ago
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Index: third_party/sqlite/sqlite-src-3080704/src/printf.c
diff --git a/third_party/sqlite/sqlite-src-3080704/src/printf.c b/third_party/sqlite/sqlite-src-3080704/src/printf.c
deleted file mode 100644
index 387b9e90c18e241a983095429b235d0b2d95f1ec..0000000000000000000000000000000000000000
--- a/third_party/sqlite/sqlite-src-3080704/src/printf.c
+++ /dev/null
@@ -1,1131 +0,0 @@
-/*
-** The "printf" code that follows dates from the 1980's. It is in
-** the public domain. The original comments are included here for
-** completeness. They are very out-of-date but might be useful as
-** an historical reference. Most of the "enhancements" have been backed
-** out so that the functionality is now the same as standard printf().
-**
-**************************************************************************
-**
-** This file contains code for a set of "printf"-like routines. These
-** routines format strings much like the printf() from the standard C
-** library, though the implementation here has enhancements to support
-** SQLlite.
-*/
-#include "sqliteInt.h"
-
-/*
-** If the strchrnul() library function is available, then set
-** HAVE_STRCHRNUL. If that routine is not available, this module
-** will supply its own. The built-in version is slower than
-** the glibc version so the glibc version is definitely preferred.
-*/
-#if !defined(HAVE_STRCHRNUL)
-# define HAVE_STRCHRNUL 0
-#endif
-
-
-/*
-** Conversion types fall into various categories as defined by the
-** following enumeration.
-*/
-#define etRADIX 1 /* Integer types. %d, %x, %o, and so forth */
-#define etFLOAT 2 /* Floating point. %f */
-#define etEXP 3 /* Exponentional notation. %e and %E */
-#define etGENERIC 4 /* Floating or exponential, depending on exponent. %g */
-#define etSIZE 5 /* Return number of characters processed so far. %n */
-#define etSTRING 6 /* Strings. %s */
-#define etDYNSTRING 7 /* Dynamically allocated strings. %z */
-#define etPERCENT 8 /* Percent symbol. %% */
-#define etCHARX 9 /* Characters. %c */
-/* The rest are extensions, not normally found in printf() */
-#define etSQLESCAPE 10 /* Strings with '\'' doubled. %q */
-#define etSQLESCAPE2 11 /* Strings with '\'' doubled and enclosed in '',
- NULL pointers replaced by SQL NULL. %Q */
-#define etTOKEN 12 /* a pointer to a Token structure */
-#define etSRCLIST 13 /* a pointer to a SrcList */
-#define etPOINTER 14 /* The %p conversion */
-#define etSQLESCAPE3 15 /* %w -> Strings with '\"' doubled */
-#define etORDINAL 16 /* %r -> 1st, 2nd, 3rd, 4th, etc. English only */
-
-#define etINVALID 0 /* Any unrecognized conversion type */
-
-
-/*
-** An "etByte" is an 8-bit unsigned value.
-*/
-typedef unsigned char etByte;
-
-/*
-** Each builtin conversion character (ex: the 'd' in "%d") is described
-** by an instance of the following structure
-*/
-typedef struct et_info { /* Information about each format field */
- char fmttype; /* The format field code letter */
- etByte base; /* The base for radix conversion */
- etByte flags; /* One or more of FLAG_ constants below */
- etByte type; /* Conversion paradigm */
- etByte charset; /* Offset into aDigits[] of the digits string */
- etByte prefix; /* Offset into aPrefix[] of the prefix string */
-} et_info;
-
-/*
-** Allowed values for et_info.flags
-*/
-#define FLAG_SIGNED 1 /* True if the value to convert is signed */
-#define FLAG_INTERN 2 /* True if for internal use only */
-#define FLAG_STRING 4 /* Allow infinity precision */
-
-
-/*
-** The following table is searched linearly, so it is good to put the
-** most frequently used conversion types first.
-*/
-static const char aDigits[] = "0123456789ABCDEF0123456789abcdef";
-static const char aPrefix[] = "-x0\000X0";
-static const et_info fmtinfo[] = {
- { 'd', 10, 1, etRADIX, 0, 0 },
- { 's', 0, 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, 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 },
-
-/* All the rest have the FLAG_INTERN bit set and are thus for internal
-** use only */
- { 'T', 0, 2, etTOKEN, 0, 0 },
- { 'S', 0, 2, etSRCLIST, 0, 0 },
- { 'r', 10, 3, etORDINAL, 0, 0 },
-};
-
-/*
-** If SQLITE_OMIT_FLOATING_POINT is defined, then none of the floating point
-** conversions will work.
-*/
-#ifndef SQLITE_OMIT_FLOATING_POINT
-/*
-** "*val" is a double such that 0.1 <= *val < 10.0
-** Return the ascii code for the leading digit of *val, then
-** multiply "*val" by 10.0 to renormalize.
-**
-** Example:
-** input: *val = 3.14159
-** output: *val = 1.4159 function return = '3'
-**
-** The counter *cnt is incremented each time. After counter exceeds
-** 16 (the number of significant digits in a 64-bit float) '0' is
-** always returned.
-*/
-static char et_getdigit(LONGDOUBLE_TYPE *val, int *cnt){
- int digit;
- LONGDOUBLE_TYPE d;
- if( (*cnt)<=0 ) return '0';
- (*cnt)--;
- digit = (int)*val;
- d = digit;
- digit += '0';
- *val = (*val - d)*10.0;
- return (char)digit;
-}
-#endif /* SQLITE_OMIT_FLOATING_POINT */
-
-/*
-** Set the StrAccum object to an error mode.
-*/
-static void setStrAccumError(StrAccum *p, u8 eError){
- p->accError = eError;
- p->nAlloc = 0;
-}
-
-/*
-** Extra argument values from a PrintfArguments object
-*/
-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++]);
-}
-
-
-/*
-** On machines with a small stack size, you can redefine the
-** SQLITE_PRINT_BUF_SIZE to be something smaller, if desired.
-*/
-#ifndef SQLITE_PRINT_BUF_SIZE
-# define SQLITE_PRINT_BUF_SIZE 70
-#endif
-#define etBUFSIZE SQLITE_PRINT_BUF_SIZE /* Size of the output buffer */
-
-/*
-** Render a string given by "fmt" into the StrAccum object.
-*/
-void sqlite3VXPrintf(
- StrAccum *pAccum, /* Accumulate results here */
- u32 bFlags, /* SQLITE_PRINTF_* flags */
- const char *fmt, /* Format string */
- va_list ap /* arguments */
-){
- 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_plussign; /* True if "+" flag is present */
- etByte flag_blanksign; /* True if " " flag is present */
- 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; /* True if "l" flag is present */
- etByte flag_longlong; /* True if the "ll" flag is present */
- etByte done; /* Loop termination flag */
- etByte xtype = 0; /* Conversion paradigm */
- u8 bArgList; /* True for SQLITE_PRINTF_SQLFUNC */
- u8 useIntern; /* Ok to use internal conversions (ex: %T) */
- char prefix; /* Prefix character. "+" or "-" or " " or '\0'. */
- sqlite_uint64 longvalue; /* Value for integer types */
- LONGDOUBLE_TYPE 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 */
-#ifndef SQLITE_OMIT_FLOATING_POINT
- int exp, e2; /* exponent of real numbers */
- int nsd; /* Number of significant digits returned */
- double rounder; /* Used for rounding floating point values */
- etByte flag_dp; /* True if decimal point should be shown */
- etByte flag_rtz; /* True if trailing zeros should be removed */
-#endif
- PrintfArguments *pArgList = 0; /* Arguments for SQLITE_PRINTF_SQLFUNC */
- char buf[etBUFSIZE]; /* Conversion buffer */
-
- bufpt = 0;
- if( bFlags ){
- if( (bArgList = (bFlags & SQLITE_PRINTF_SQLFUNC))!=0 ){
- pArgList = va_arg(ap, PrintfArguments*);
- }
- useIntern = bFlags & SQLITE_PRINTF_INTERNAL;
- }else{
- bArgList = useIntern = 0;
- }
- for(; (c=(*fmt))!=0; ++fmt){
- if( c!='%' ){
- bufpt = (char *)fmt;
-#if HAVE_STRCHRNUL
- fmt = strchrnul(fmt, '%');
-#else
- do{ fmt++; }while( *fmt && *fmt != '%' );
-#endif
- sqlite3StrAccumAppend(pAccum, bufpt, (int)(fmt - bufpt));
- if( *fmt==0 ) break;
- }
- if( (c=(*++fmt))==0 ){
- sqlite3StrAccumAppend(pAccum, "%", 1);
- break;
- }
- /* Find out what flags are present */
- 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 );
- /* Get the field width */
- width = 0;
- if( c=='*' ){
- if( bArgList ){
- width = (int)getIntArg(pArgList);
- }else{
- 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;
- }
- }
- /* Get the precision */
- if( c=='.' ){
- precision = 0;
- c = *++fmt;
- if( c=='*' ){
- if( bArgList ){
- precision = (int)getIntArg(pArgList);
- }else{
- 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;
- }
- /* Get the conversion type modifier */
- 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;
- }
- /* 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];
- if( useIntern || (infop->flags & FLAG_INTERN)==0 ){
- xtype = infop->type;
- }else{
- return;
- }
- break;
- }
- }
-
- /*
- ** At this point, variables are initialized as follows:
- **
- ** flag_alternateform TRUE if a '#' is present.
- ** flag_altform2 TRUE if a '!' is present.
- ** flag_plussign TRUE if a '+' is present.
- ** flag_leftjustify TRUE if a '-' is present or if the
- ** field width was negative.
- ** flag_zeropad TRUE if the width began with 0.
- ** flag_long TRUE if the letter 'l' (ell) prefixed
- ** the conversion character.
- ** flag_longlong TRUE if the letter 'll' (ell ell) prefixed
- ** the conversion character.
- ** flag_blanksign TRUE if a ' ' is present.
- ** width The specified field width. This is
- ** always non-negative. Zero is the default.
- ** precision The specified precision. The default
- ** is -1.
- ** xtype The class of the conversion.
- ** infop Pointer to the appropriate info struct.
- */
- switch( xtype ){
- case etPOINTER:
- flag_longlong = sizeof(char*)==sizeof(i64);
- flag_long = sizeof(char*)==sizeof(long int);
- /* Fall through into the next case */
- case etORDINAL:
- case etRADIX:
- if( infop->flags & FLAG_SIGNED ){
- i64 v;
- if( bArgList ){
- v = getIntArg(pArgList);
- }else 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 ){
- if( v==SMALLEST_INT64 ){
- longvalue = ((u64)1)<<63;
- }else{
- longvalue = -v;
- }
- prefix = '-';
- }else{
- longvalue = v;
- if( flag_plussign ) prefix = '+';
- else if( flag_blanksign ) prefix = ' ';
- else prefix = 0;
- }
- }else{
- if( bArgList ){
- longvalue = (u64)getIntArg(pArgList);
- }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);
- }
- if( precision<etBUFSIZE-10 ){
- nOut = etBUFSIZE;
- zOut = buf;
- }else{
- nOut = precision + 10;
- zOut = zExtra = sqlite3Malloc( nOut );
- if( zOut==0 ){
- setStrAccumError(pAccum, STRACCUM_NOMEM);
- return;
- }
- }
- 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);
- for(idx=precision-length; idx>0; idx--){
- *(--bufpt) = '0'; /* Zero pad */
- }
- 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:
- if( bArgList ){
- realvalue = getDoubleArg(pArgList);
- }else{
- realvalue = va_arg(ap,double);
- }
-#ifdef SQLITE_OMIT_FLOATING_POINT
- length = 0;
-#else
- if( precision<0 ) precision = 6; /* Set default precision */
- 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--;
- for(idx=precision, rounder=0.5; idx>0; idx--, rounder*=0.1){}
- if( xtype==etFLOAT ) realvalue += rounder;
- /* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
- exp = 0;
- if( sqlite3IsNaN((double)realvalue) ){
- bufpt = "NaN";
- length = 3;
- break;
- }
- if( realvalue>0.0 ){
- LONGDOUBLE_TYPE scale = 1.0;
- while( realvalue>=1e100*scale && exp<=350 ){ scale *= 1e100;exp+=100;}
- while( realvalue>=1e64*scale && exp<=350 ){ scale *= 1e64; exp+=64; }
- while( realvalue>=1e8*scale && exp<=350 ){ scale *= 1e8; exp+=8; }
- while( realvalue>=10.0*scale && exp<=350 ){ scale *= 10.0; exp++; }
- realvalue /= scale;
- while( realvalue<1e-8 ){ realvalue *= 1e8; exp-=8; }
- while( realvalue<1.0 ){ realvalue *= 10.0; exp--; }
- if( exp>350 ){
- if( prefix=='-' ){
- bufpt = "-Inf";
- }else if( prefix=='+' ){
- bufpt = "+Inf";
- }else{
- bufpt = "Inf";
- }
- length = sqlite3Strlen30(bufpt);
- break;
- }
- }
- bufpt = buf;
- /*
- ** If the field type is etGENERIC, then convert to either etEXP
- ** or etFLOAT, as appropriate.
- */
- 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 = flag_altform2;
- }
- if( xtype==etEXP ){
- e2 = 0;
- }else{
- e2 = exp;
- }
- if( MAX(e2,0)+precision+width > etBUFSIZE - 15 ){
- bufpt = zExtra = sqlite3Malloc( MAX(e2,0)+precision+width+15 );
- if( bufpt==0 ){
- setStrAccumError(pAccum, STRACCUM_NOMEM);
- return;
- }
- }
- zOut = bufpt;
- nsd = 16 + flag_altform2*10;
- 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 */
- if( e2<0 ){
- *(bufpt++) = '0';
- }else{
- for(; e2>=0; e2--){
- *(bufpt++) = et_getdigit(&realvalue,&nsd);
- }
- }
- /* The decimal point */
- if( flag_dp ){
- *(bufpt++) = '.';
- }
- /* "0" digits after the decimal point but before the first
- ** significant digit of the number */
- for(e2++; e2<0; precision--, e2++){
- assert( precision>0 );
- *(bufpt++) = '0';
- }
- /* Significant digits after the decimal point */
- while( (precision--)>0 ){
- *(bufpt++) = et_getdigit(&realvalue,&nsd);
- }
- /* 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 ){
- *(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.
- ** Note that the number is in the usual order, not reversed as with
- ** integer conversions. */
- length = (int)(bufpt-zOut);
- bufpt = zOut;
-
- /* Special case: Add leading zeros if the flag_zeropad flag is
- ** set and we are not left justified */
- 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 /* !defined(SQLITE_OMIT_FLOATING_POINT) */
- 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);
- c = bufpt ? bufpt[0] : 0;
- }else{
- c = va_arg(ap,int);
- }
- if( precision>1 ){
- width -= precision-1;
- if( width>1 && !flag_leftjustify ){
- sqlite3AppendChar(pAccum, width-1, ' ');
- width = 0;
- }
- sqlite3AppendChar(pAccum, precision-1, c);
- }
- length = 1;
- buf[0] = c;
- bufpt = buf;
- break;
- case etSTRING:
- case etDYNSTRING:
- if( bArgList ){
- bufpt = getTextArg(pArgList);
- }else{
- bufpt = va_arg(ap,char*);
- }
- if( bufpt==0 ){
- bufpt = "";
- }else if( xtype==etDYNSTRING && !bArgList ){
- zExtra = bufpt;
- }
- if( precision>=0 ){
- for(length=0; length<precision && bufpt[length]; length++){}
- }else{
- length = sqlite3Strlen30(bufpt);
- }
- break;
- case etSQLESCAPE:
- case etSQLESCAPE2:
- case etSQLESCAPE3: {
- int i, j, k, n, isnull;
- int needQuote;
- 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)");
- k = precision;
- for(i=n=0; k!=0 && (ch=escarg[i])!=0; i++, k--){
- if( ch==q ) n++;
- }
- needQuote = !isnull && xtype==etSQLESCAPE2;
- n += i + 1 + needQuote*2;
- if( n>etBUFSIZE ){
- bufpt = zExtra = sqlite3Malloc( n );
- if( bufpt==0 ){
- setStrAccumError(pAccum, STRACCUM_NOMEM);
- 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;
- /* The precision in %q and %Q means how many input characters to
- ** consume, not the length of the output...
- ** if( precision>=0 && precision<length ) length = precision; */
- break;
- }
- case etTOKEN: {
- Token *pToken = va_arg(ap, Token*);
- assert( bArgList==0 );
- if( pToken && pToken->n ){
- sqlite3StrAccumAppend(pAccum, (const 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( bArgList==0 );
- assert( k>=0 && k<pSrc->nSrc );
- if( pItem->zDatabase ){
- sqlite3StrAccumAppendAll(pAccum, pItem->zDatabase);
- sqlite3StrAccumAppend(pAccum, ".", 1);
- }
- sqlite3StrAccumAppendAll(pAccum, pItem->zName);
- length = width = 0;
- break;
- }
- default: {
- assert( xtype==etINVALID );
- return;
- }
- }/* End switch over the format type */
- /*
- ** The text of the conversion is pointed to by "bufpt" and is
- ** "length" characters long. The field width is "width". Do
- ** the output.
- */
- width -= length;
- if( width>0 && !flag_leftjustify ) sqlite3AppendChar(pAccum, width, ' ');
- sqlite3StrAccumAppend(pAccum, bufpt, length);
- if( width>0 && flag_leftjustify ) sqlite3AppendChar(pAccum, width, ' ');
-
- if( zExtra ){
- sqlite3_free(zExtra);
- zExtra = 0;
- }
- }/* End for loop over the format string */
-} /* End of function */
-
-/*
-** Enlarge the memory allocation on a StrAccum object so that it is
-** able to accept at least N more bytes of text.
-**
-** Return the number of bytes of text that StrAccum is able to accept
-** after the attempted enlargement. The value returned might be zero.
-*/
-static int sqlite3StrAccumEnlarge(StrAccum *p, int N){
- char *zNew;
- assert( p->nChar+N >= p->nAlloc ); /* Only called if really needed */
- if( p->accError ){
- testcase(p->accError==STRACCUM_TOOBIG);
- testcase(p->accError==STRACCUM_NOMEM);
- return 0;
- }
- if( !p->useMalloc ){
- N = p->nAlloc - p->nChar - 1;
- setStrAccumError(p, STRACCUM_TOOBIG);
- return N;
- }else{
- char *zOld = (p->zText==p->zBase ? 0 : p->zText);
- i64 szNew = p->nChar;
- szNew += N + 1;
- if( szNew > p->mxAlloc ){
- sqlite3StrAccumReset(p);
- setStrAccumError(p, STRACCUM_TOOBIG);
- return 0;
- }else{
- p->nAlloc = (int)szNew;
- }
- if( p->useMalloc==1 ){
- zNew = sqlite3DbRealloc(p->db, zOld, p->nAlloc);
- }else{
- zNew = sqlite3_realloc(zOld, p->nAlloc);
- }
- if( zNew ){
- assert( p->zText!=0 || p->nChar==0 );
- if( zOld==0 && p->nChar>0 ) memcpy(zNew, p->zText, p->nChar);
- p->zText = zNew;
- }else{
- sqlite3StrAccumReset(p);
- setStrAccumError(p, STRACCUM_NOMEM);
- return 0;
- }
- }
- return N;
-}
-
-/*
-** Append N copies of character c to the given string buffer.
-*/
-void sqlite3AppendChar(StrAccum *p, int N, char c){
- if( p->nChar+N >= p->nAlloc && (N = sqlite3StrAccumEnlarge(p, N))<=0 ) return;
- while( (N--)>0 ) p->zText[p->nChar++] = c;
-}
-
-/*
-** The StrAccum "p" is not large enough to accept N new bytes of z[].
-** So enlarge if first, then do the append.
-**
-** This is a helper routine to sqlite3StrAccumAppend() that does special-case
-** work (enlarging the buffer) using tail recursion, so that the
-** sqlite3StrAccumAppend() routine can use fast calling semantics.
-*/
-static void SQLITE_NOINLINE enlargeAndAppend(StrAccum *p, const char *z, int N){
- N = sqlite3StrAccumEnlarge(p, N);
- if( N>0 ){
- memcpy(&p->zText[p->nChar], z, N);
- p->nChar += N;
- }
-}
-
-/*
-** Append N bytes of text from z to the StrAccum object. Increase the
-** size of the memory allocation for StrAccum if necessary.
-*/
-void sqlite3StrAccumAppend(StrAccum *p, const char *z, int N){
- assert( z!=0 );
- assert( p->zText!=0 || p->nChar==0 || p->accError );
- assert( N>=0 );
- assert( p->accError==0 || p->nAlloc==0 );
- if( p->nChar+N >= p->nAlloc ){
- enlargeAndAppend(p,z,N);
- }else{
- assert( p->zText );
- p->nChar += N;
- memcpy(&p->zText[p->nChar-N], z, N);
- }
-}
-
-/*
-** Append the complete text of zero-terminated string z[] to the p string.
-*/
-void sqlite3StrAccumAppendAll(StrAccum *p, const char *z){
- sqlite3StrAccumAppend(p, z, sqlite3Strlen30(z));
-}
-
-
-/*
-** Finish off a string by making sure it is zero-terminated.
-** Return a pointer to the resulting string. Return a NULL
-** pointer if any kind of error was encountered.
-*/
-char *sqlite3StrAccumFinish(StrAccum *p){
- if( p->zText ){
- p->zText[p->nChar] = 0;
- if( p->useMalloc && p->zText==p->zBase ){
- if( p->useMalloc==1 ){
- p->zText = sqlite3DbMallocRaw(p->db, p->nChar+1 );
- }else{
- p->zText = sqlite3_malloc(p->nChar+1);
- }
- if( p->zText ){
- memcpy(p->zText, p->zBase, p->nChar+1);
- }else{
- setStrAccumError(p, STRACCUM_NOMEM);
- }
- }
- }
- return p->zText;
-}
-
-/*
-** Reset an StrAccum string. Reclaim all malloced memory.
-*/
-void sqlite3StrAccumReset(StrAccum *p){
- if( p->zText!=p->zBase ){
- if( p->useMalloc==1 ){
- sqlite3DbFree(p->db, p->zText);
- }else{
- sqlite3_free(p->zText);
- }
- }
- p->zText = 0;
-}
-
-/*
-** Initialize a string accumulator
-*/
-void sqlite3StrAccumInit(StrAccum *p, char *zBase, int n, int mx){
- p->zText = p->zBase = zBase;
- p->db = 0;
- p->nChar = 0;
- p->nAlloc = n;
- p->mxAlloc = mx;
- p->useMalloc = 1;
- p->accError = 0;
-}
-
-/*
-** Print into memory obtained from sqliteMalloc(). Use the internal
-** %-conversion extensions.
-*/
-char *sqlite3VMPrintf(sqlite3 *db, const char *zFormat, va_list ap){
- char *z;
- char zBase[SQLITE_PRINT_BUF_SIZE];
- StrAccum acc;
- assert( db!=0 );
- sqlite3StrAccumInit(&acc, zBase, sizeof(zBase),
- db->aLimit[SQLITE_LIMIT_LENGTH]);
- acc.db = db;
- sqlite3VXPrintf(&acc, SQLITE_PRINTF_INTERNAL, zFormat, ap);
- z = sqlite3StrAccumFinish(&acc);
- if( acc.accError==STRACCUM_NOMEM ){
- db->mallocFailed = 1;
- }
- return z;
-}
-
-/*
-** Print into memory obtained from sqliteMalloc(). Use the internal
-** %-conversion extensions.
-*/
-char *sqlite3MPrintf(sqlite3 *db, const char *zFormat, ...){
- va_list ap;
- char *z;
- va_start(ap, zFormat);
- z = sqlite3VMPrintf(db, zFormat, ap);
- va_end(ap);
- return z;
-}
-
-/*
-** Like sqlite3MPrintf(), but call sqlite3DbFree() on zStr after formatting
-** the string and before returning. This routine is intended to be used
-** to modify an existing string. For example:
-**
-** x = sqlite3MPrintf(db, x, "prefix %s suffix", x);
-**
-*/
-char *sqlite3MAppendf(sqlite3 *db, char *zStr, const char *zFormat, ...){
- va_list ap;
- char *z;
- va_start(ap, zFormat);
- z = sqlite3VMPrintf(db, zFormat, ap);
- va_end(ap);
- sqlite3DbFree(db, zStr);
- return z;
-}
-
-/*
-** Print into memory obtained from sqlite3_malloc(). Omit the internal
-** %-conversion extensions.
-*/
-char *sqlite3_vmprintf(const char *zFormat, va_list ap){
- char *z;
- char zBase[SQLITE_PRINT_BUF_SIZE];
- StrAccum acc;
-#ifndef SQLITE_OMIT_AUTOINIT
- if( sqlite3_initialize() ) return 0;
-#endif
- sqlite3StrAccumInit(&acc, zBase, sizeof(zBase), SQLITE_MAX_LENGTH);
- acc.useMalloc = 2;
- sqlite3VXPrintf(&acc, 0, zFormat, ap);
- z = sqlite3StrAccumFinish(&acc);
- return z;
-}
-
-/*
-** Print into memory obtained from sqlite3_malloc()(). Omit the internal
-** %-conversion extensions.
-*/
-char *sqlite3_mprintf(const char *zFormat, ...){
- va_list ap;
- char *z;
-#ifndef SQLITE_OMIT_AUTOINIT
- if( sqlite3_initialize() ) return 0;
-#endif
- va_start(ap, zFormat);
- z = sqlite3_vmprintf(zFormat, ap);
- va_end(ap);
- return z;
-}
-
-/*
-** sqlite3_snprintf() works like snprintf() except that it ignores the
-** current locale settings. This is important for SQLite because we
-** are not able to use a "," as the decimal point in place of "." as
-** specified by some locales.
-**
-** Oops: The first two arguments of sqlite3_snprintf() are backwards
-** from the snprintf() standard. Unfortunately, it is too late to change
-** this without breaking compatibility, so we just have to live with the
-** mistake.
-**
-** sqlite3_vsnprintf() is the varargs version.
-*/
-char *sqlite3_vsnprintf(int n, char *zBuf, const char *zFormat, va_list ap){
- StrAccum acc;
- if( n<=0 ) return zBuf;
- sqlite3StrAccumInit(&acc, zBuf, n, 0);
- acc.useMalloc = 0;
- sqlite3VXPrintf(&acc, 0, zFormat, ap);
- return sqlite3StrAccumFinish(&acc);
-}
-char *sqlite3_snprintf(int n, char *zBuf, const char *zFormat, ...){
- char *z;
- va_list ap;
- va_start(ap,zFormat);
- z = sqlite3_vsnprintf(n, zBuf, zFormat, ap);
- va_end(ap);
- return z;
-}
-
-/*
-** This is the routine that actually formats the sqlite3_log() message.
-** We house it in a separate routine from sqlite3_log() to avoid using
-** stack space on small-stack systems when logging is disabled.
-**
-** sqlite3_log() must render into a static buffer. It cannot dynamically
-** allocate memory because it might be called while the memory allocator
-** mutex is held.
-*/
-static void renderLogMsg(int iErrCode, const char *zFormat, va_list ap){
- StrAccum acc; /* String accumulator */
- char zMsg[SQLITE_PRINT_BUF_SIZE*3]; /* Complete log message */
-
- sqlite3StrAccumInit(&acc, zMsg, sizeof(zMsg), 0);
- acc.useMalloc = 0;
- sqlite3VXPrintf(&acc, 0, zFormat, ap);
- sqlite3GlobalConfig.xLog(sqlite3GlobalConfig.pLogArg, iErrCode,
- sqlite3StrAccumFinish(&acc));
-}
-
-/*
-** Format and write a message to the log if logging is enabled.
-*/
-void sqlite3_log(int iErrCode, const char *zFormat, ...){
- va_list ap; /* Vararg list */
- if( sqlite3GlobalConfig.xLog ){
- va_start(ap, zFormat);
- renderLogMsg(iErrCode, zFormat, ap);
- va_end(ap);
- }
-}
-
-#if defined(SQLITE_DEBUG)
-/*
-** A version of printf() that understands %lld. Used for debugging.
-** The printf() built into some versions of windows does not understand %lld
-** and segfaults if you give it a long long int.
-*/
-void sqlite3DebugPrintf(const char *zFormat, ...){
- va_list ap;
- StrAccum acc;
- char zBuf[500];
- sqlite3StrAccumInit(&acc, zBuf, sizeof(zBuf), 0);
- acc.useMalloc = 0;
- va_start(ap,zFormat);
- sqlite3VXPrintf(&acc, 0, zFormat, ap);
- va_end(ap);
- sqlite3StrAccumFinish(&acc);
- fprintf(stdout,"%s", zBuf);
- fflush(stdout);
-}
-#endif
-
-#ifdef SQLITE_DEBUG
-/*************************************************************************
-** Routines for implementing the "TreeView" display of hierarchical
-** data structures for debugging.
-**
-** The main entry points (coded elsewhere) are:
-** sqlite3TreeViewExpr(0, pExpr, 0);
-** sqlite3TreeViewExprList(0, pList, 0, 0);
-** sqlite3TreeViewSelect(0, pSelect, 0);
-** Insert calls to those routines while debugging in order to display
-** a diagram of Expr, ExprList, and Select objects.
-**
-*/
-/* Add a new subitem to the tree. The moreToFollow flag indicates that this
-** is not the last item in the tree. */
-TreeView *sqlite3TreeViewPush(TreeView *p, u8 moreToFollow){
- if( p==0 ){
- p = sqlite3_malloc( sizeof(*p) );
- if( p==0 ) return 0;
- memset(p, 0, sizeof(*p));
- }else{
- p->iLevel++;
- }
- assert( moreToFollow==0 || moreToFollow==1 );
- if( p->iLevel<sizeof(p->bLine) ) p->bLine[p->iLevel] = moreToFollow;
- return p;
-}
-/* Finished with one layer of the tree */
-void sqlite3TreeViewPop(TreeView *p){
- if( p==0 ) return;
- p->iLevel--;
- if( p->iLevel<0 ) sqlite3_free(p);
-}
-/* Generate a single line of output for the tree, with a prefix that contains
-** all the appropriate tree lines */
-void sqlite3TreeViewLine(TreeView *p, const char *zFormat, ...){
- va_list ap;
- int i;
- StrAccum acc;
- char zBuf[500];
- sqlite3StrAccumInit(&acc, zBuf, sizeof(zBuf), 0);
- acc.useMalloc = 0;
- if( p ){
- for(i=0; i<p->iLevel && i<sizeof(p->bLine)-1; i++){
- sqlite3StrAccumAppend(&acc, p->bLine[i] ? "| " : " ", 4);
- }
- sqlite3StrAccumAppend(&acc, p->bLine[i] ? "|-- " : "'-- ", 4);
- }
- va_start(ap, zFormat);
- sqlite3VXPrintf(&acc, 0, zFormat, ap);
- va_end(ap);
- if( zBuf[acc.nChar-1]!='\n' ) sqlite3StrAccumAppend(&acc, "\n", 1);
- sqlite3StrAccumFinish(&acc);
- fprintf(stdout,"%s", zBuf);
- fflush(stdout);
-}
-/* Shorthand for starting a new tree item that consists of a single label */
-void sqlite3TreeViewItem(TreeView *p, const char *zLabel, u8 moreToFollow){
- p = sqlite3TreeViewPush(p, moreToFollow);
- sqlite3TreeViewLine(p, "%s", zLabel);
-}
-#endif /* SQLITE_DEBUG */
-
-/*
-** variable-argument wrapper around sqlite3VXPrintf().
-*/
-void sqlite3XPrintf(StrAccum *p, u32 bFlags, const char *zFormat, ...){
- va_list ap;
- va_start(ap,zFormat);
- sqlite3VXPrintf(p, bFlags, zFormat, ap);
- va_end(ap);
-}
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