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diff --git a/ext/sqlite/libsqlite/src/printf.c b/ext/sqlite/libsqlite/src/printf.c
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-/*
-** 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 They are very out-of-date but might be useful as
-** an historical reference.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().
-**
-**************************************************************************
-**
-** The following modules is an enhanced replacement for the "printf" subroutines
-** found in the standard C library. The following enhancements are
-** supported:
-**
-** + Additional functions. The standard set of "printf" functions
-** includes printf, fprintf, sprintf, vprintf, vfprintf, and
-** vsprintf. This module adds the following:
-**
-** * snprintf -- Works like sprintf, but has an extra argument
-** which is the size of the buffer written to.
-**
-** * mprintf -- Similar to sprintf. Writes output to memory
-** obtained from malloc.
-**
-** * xprintf -- Calls a function to dispose of output.
-**
-** * nprintf -- No output, but returns the number of characters
-** that would have been output by printf.
-**
-** * A v- version (ex: vsnprintf) of every function is also
-** supplied.
-**
-** + A few extensions to the formatting notation are supported:
-**
-** * The "=" flag (similar to "-") causes the output to be
-** be centered in the appropriately sized field.
-**
-** * The %b field outputs an integer in binary notation.
-**
-** * The %c field now accepts a precision. The character output
-** is repeated by the number of times the precision specifies.
-**
-** * The %' field works like %c, but takes as its character the
-** next character of the format string, instead of the next
-** argument. For example, printf("%.78'-") prints 78 minus
-** signs, the same as printf("%.78c",'-').
-**
-** + When compiled using GCC on a SPARC, this version of printf is
-** faster than the library printf for SUN OS 4.1.
-**
-** + All functions are fully reentrant.
-**
-*/
-#include "sqliteInt.h"
-
-/*
-** 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 */
-#define etERROR 10 /* Used to indicate no such conversion type */
-/* The rest are extensions, not normally found in printf() */
-#define etCHARLIT 11 /* Literal characters. %' */
-#define etSQLESCAPE 12 /* Strings with '\'' doubled. %q */
-#define etSQLESCAPE2 13 /* Strings with '\'' doubled and enclosed in '',
- NULL pointers replaced by SQL NULL. %Q */
-#define etTOKEN 14 /* a pointer to a Token structure */
-#define etSRCLIST 15 /* a pointer to a SrcList */
-
-
-/*
-** 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 */
- char *charset; /* The character set for conversion */
- char *prefix; /* Prefix on non-zero values in alt format */
-} 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 */
-
-
-/*
-** The following table is searched linearly, so it is good to put the
-** most frequently used conversion types first.
-*/
-static et_info fmtinfo[] = {
- { 'd', 10, 1, etRADIX, "0123456789", 0 },
- { 's', 0, 0, etSTRING, 0, 0 },
- { 'z', 0, 2, etDYNSTRING, 0, 0 },
- { 'q', 0, 0, etSQLESCAPE, 0, 0 },
- { 'Q', 0, 0, etSQLESCAPE2, 0, 0 },
- { 'c', 0, 0, etCHARX, 0, 0 },
- { 'o', 8, 0, etRADIX, "01234567", "0" },
- { 'u', 10, 0, etRADIX, "0123456789", 0 },
- { 'x', 16, 0, etRADIX, "0123456789abcdef", "x0" },
- { 'X', 16, 0, etRADIX, "0123456789ABCDEF", "X0" },
- { 'f', 0, 1, etFLOAT, 0, 0 },
- { 'e', 0, 1, etEXP, "e", 0 },
- { 'E', 0, 1, etEXP, "E", 0 },
- { 'g', 0, 1, etGENERIC, "e", 0 },
- { 'G', 0, 1, etGENERIC, "E", 0 },
- { 'i', 10, 1, etRADIX, "0123456789", 0 },
- { 'n', 0, 0, etSIZE, 0, 0 },
- { '%', 0, 0, etPERCENT, 0, 0 },
- { 'p', 10, 0, etRADIX, "0123456789", 0 },
- { 'T', 0, 2, etTOKEN, 0, 0 },
- { 'S', 0, 2, etSRCLIST, 0, 0 },
-};
-#define etNINFO (sizeof(fmtinfo)/sizeof(fmtinfo[0]))
-
-/*
-** If NOFLOATINGPOINT is defined, then none of the floating point
-** conversions will work.
-*/
-#ifndef etNOFLOATINGPOINT
-/*
-** "*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 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
-
-#define etBUFSIZE 1000 /* Size of the output buffer */
-
-/*
-** The root program. All variations call this core.
-**
-** INPUTS:
-** func This is a pointer to a function taking three arguments
-** 1. A pointer to anything. Same as the "arg" parameter.
-** 2. A pointer to the list of characters to be output
-** (Note, this list is NOT null terminated.)
-** 3. An integer number of characters to be output.
-** (Note: This number might be zero.)
-**
-** arg This is the pointer to anything which will be passed as the
-** first argument to "func". Use it for whatever you like.
-**
-** fmt This is the format string, as in the usual print.
-**
-** ap This is a pointer to a list of arguments. Same as in
-** vfprint.
-**
-** OUTPUTS:
-** The return value is the total number of characters sent to
-** the function "func". Returns -1 on a error.
-**
-** Note that the order in which automatic variables are declared below
-** seems to make a big difference in determining how fast this beast
-** will run.
-*/
-static int vxprintf(
- void (*func)(void*,const char*,int), /* Consumer of text */
- void *arg, /* First argument to the consumer */
- int useExtended, /* Allow extended %-conversions */
- 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 count; /* Total number of characters output */
- 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_zeropad; /* True if field width constant starts with zero */
- etByte flag_long; /* True if "l" flag is present */
- unsigned long longvalue; /* Value for integer types */
- LONGDOUBLE_TYPE realvalue; /* Value for real types */
- et_info *infop; /* Pointer to the appropriate info structure */
- char buf[etBUFSIZE]; /* Conversion buffer */
- char prefix; /* Prefix character. "+" or "-" or " " or '\0'. */
- etByte errorflag = 0; /* True if an error is encountered */
- etByte xtype; /* Conversion paradigm */
- char *zExtra; /* Extra memory used for etTCLESCAPE conversions */
- static char spaces[] = " ";
-#define etSPACESIZE (sizeof(spaces)-1)
-#ifndef etNOFLOATINGPOINT
- int exp; /* exponent of real numbers */
- 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 */
- etByte flag_exp; /* True to force display of the exponent */
- int nsd; /* Number of significant digits returned */
-#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;
- }
- /* Find out what flags are present */
- flag_leftjustify = flag_plussign = flag_blanksign =
- flag_alternateform = flag_zeropad = 0;
- do{
- switch( c ){
- case '-': flag_leftjustify = 1; c = 0; break;
- case '+': flag_plussign = 1; c = 0; break;
- case ' ': flag_blanksign = 1; c = 0; break;
- case '#': flag_alternateform = 1; c = 0; break;
- case '0': flag_zeropad = 1; c = 0; break;
- default: break;
- }
- }while( c==0 && (c=(*++fmt))!=0 );
- /* Get the field width */
- 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;
- }
- /* Get the precision */
- 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;
- }
- }
- /* Limit the precision to prevent overflowing buf[] during conversion */
- if( precision>etBUFSIZE-40 ) precision = etBUFSIZE-40;
- }else{
- precision = -1;
- }
- /* Get the conversion type modifier */
- if( c=='l' ){
- flag_long = 1;
- c = *++fmt;
- }else{
- flag_long = 0;
- }
- /* Fetch the info entry for the field */
- infop = 0;
- xtype = etERROR;
- for(idx=0; idx<etNINFO; idx++){
- if( c==fmtinfo[idx].fmttype ){
- infop = &fmtinfo[idx];
- if( useExtended || (infop->flags & FLAG_INTERN)==0 ){
- xtype = infop->type;
- }
- break;
- }
- }
- zExtra = 0;
-
- /*
- ** At this point, variables are initialized as follows:
- **
- ** flag_alternateform 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_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 etRADIX:
- if( flag_long ) longvalue = va_arg(ap,long);
- else longvalue = va_arg(ap,int);
-#if 1
- /* For the format %#x, the value zero is printed "0" not "0x0".
- ** I think this is stupid. */
- if( longvalue==0 ) flag_alternateform = 0;
-#else
- /* More sensible: turn off the prefix for octal (to prevent "00"),
- ** but leave the prefix for hex. */
- if( longvalue==0 && infop->base==8 ) flag_alternateform = 0;
-#endif
- if( infop->flags & FLAG_SIGNED ){
- if( *(long*)&longvalue<0 ){
- longvalue = -*(long*)&longvalue;
- prefix = '-';
- }else if( flag_plussign ) prefix = '+';
- else if( flag_blanksign ) prefix = ' ';
- else prefix = 0;
- }else prefix = 0;
- if( flag_zeropad && precision<width-(prefix!=0) ){
- precision = width-(prefix!=0);
- }
- bufpt = &buf[etBUFSIZE-1];
- {
- register char *cset; /* Use registers for speed */
- register int base;
- cset = infop->charset;
- base = infop->base;
- do{ /* Convert to ascii */
- *(--bufpt) = cset[longvalue%base];
- longvalue = longvalue/base;
- }while( longvalue>0 );
- }
- length = &buf[etBUFSIZE-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" */
- char *pre, x;
- pre = infop->prefix;
- if( *bufpt!=pre[0] ){
- for(pre=infop->prefix; (x=(*pre))!=0; pre++) *(--bufpt) = x;
- }
- }
- length = &buf[etBUFSIZE-1]-bufpt;
- break;
- case etFLOAT:
- case etEXP:
- case etGENERIC:
- realvalue = va_arg(ap,double);
-#ifndef etNOFLOATINGPOINT
- if( precision<0 ) precision = 6; /* Set default precision */
- if( precision>etBUFSIZE-10 ) precision = etBUFSIZE-10;
- if( realvalue<0.0 ){
- realvalue = -realvalue;
- prefix = '-';
- }else{
- if( flag_plussign ) prefix = '+';
- else if( flag_blanksign ) prefix = ' ';
- else prefix = 0;
- }
- if( infop->type==etGENERIC && precision>0 ) precision--;
- rounder = 0.0;
-#if 0
- /* Rounding works like BSD when the constant 0.4999 is used. Wierd! */
- for(idx=precision, rounder=0.4999; idx>0; idx--, rounder*=0.1);
-#else
- /* It makes more sense to use 0.5 */
- for(idx=precision, rounder=0.5; idx>0; idx--, rounder*=0.1);
-#endif
- if( infop->type==etFLOAT ) realvalue += rounder;
- /* Normalize realvalue to within 10.0 > realvalue >= 1.0 */
- exp = 0;
- if( realvalue>0.0 ){
- 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;
- /*
- ** If the field type is etGENERIC, then convert to either etEXP
- ** or etFLOAT, as appropriate.
- */
- 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;
- }
- /*
- ** The "exp+precision" test causes output to be of type etEXP if
- ** the precision is too large to fit in buf[].
- */
- nsd = 0;
- if( xtype==etFLOAT && exp+precision<etBUFSIZE-30 ){
- flag_dp = (precision>0 || flag_alternateform);
- if( prefix ) *(bufpt++) = prefix; /* Sign */
- if( exp<0 ) *(bufpt++) = '0'; /* Digits before "." */
- else for(; exp>=0; exp--) *(bufpt++) = et_getdigit(&realvalue,&nsd);
- if( flag_dp ) *(bufpt++) = '.'; /* The decimal point */
- for(exp++; exp<0 && precision>0; precision--, exp++){
- *(bufpt++) = '0';
- }
- while( (precision--)>0 ) *(bufpt++) = et_getdigit(&realvalue,&nsd);
- *(bufpt--) = 0; /* Null terminate */
- if( flag_rtz && flag_dp ){ /* Remove trailing zeros and "." */
- while( bufpt>=buf && *bufpt=='0' ) *(bufpt--) = 0;
- if( bufpt>=buf && *bufpt=='.' ) *(bufpt--) = 0;
- }
- bufpt++; /* point to next free slot */
- }else{ /* etEXP or etGENERIC */
- flag_dp = (precision>0 || flag_alternateform);
- if( prefix ) *(bufpt++) = prefix; /* Sign */
- *(bufpt++) = et_getdigit(&realvalue,&nsd); /* First digit */
- if( flag_dp ) *(bufpt++) = '.'; /* Decimal point */
- while( (precision--)>0 ) *(bufpt++) = et_getdigit(&realvalue,&nsd);
- bufpt--; /* point to last digit */
- if( flag_rtz && flag_dp ){ /* Remove tail zeros */
- while( bufpt>=buf && *bufpt=='0' ) *(bufpt--) = 0;
- if( bufpt>=buf && *bufpt=='.' ) *(bufpt--) = 0;
- }
- bufpt++; /* point to next free slot */
- if( exp || flag_exp ){
- *(bufpt++) = infop->charset[0];
- if( exp<0 ){ *(bufpt++) = '-'; exp = -exp; } /* sign of exp */
- else { *(bufpt++) = '+'; }
- if( exp>=100 ){
- *(bufpt++) = (exp/100)+'0'; /* 100's digit */
- exp %= 100;
- }
- *(bufpt++) = exp/10+'0'; /* 10's digit */
- *(bufpt++) = exp%10+'0'; /* 1's digit */
- }
- }
- /* 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 = bufpt-buf;
- bufpt = buf;
-
- /* 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
- 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, c, isnull;
- char *arg = va_arg(ap,char*);
- isnull = arg==0;
- if( isnull ) arg = (xtype==etSQLESCAPE2 ? "NULL" : "(NULL)");
- for(i=n=0; (c=arg[i])!=0; i++){
- if( c=='\'' ) n++;
- }
- n += i + 1 + ((!isnull && xtype==etSQLESCAPE2) ? 2 : 0);
- if( n>etBUFSIZE ){
- bufpt = zExtra = sqliteMalloc( n );
- if( bufpt==0 ) return -1;
- }else{
- bufpt = buf;
- }
- j = 0;
- if( !isnull && xtype==etSQLESCAPE2 ) bufpt[j++] = '\'';
- for(i=0; (c=arg[i])!=0; i++){
- bufpt[j++] = c;
- if( c=='\'' ) bufpt[j++] = c;
- }
- if( !isnull && xtype==etSQLESCAPE2 ) bufpt[j++] = '\'';
- bufpt[j] = 0;
- length = j;
- if( precision>=0 && precision<length ) length = precision;
- }
- break;
- case etTOKEN: {
- Token *pToken = va_arg(ap, Token*);
- (*func)(arg, 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;
- }
- case etERROR:
- buf[0] = '%';
- buf[1] = c;
- errorflag = 0;
- idx = 1+(c!=0);
- (*func)(arg,"%",idx);
- count += idx;
- if( c==0 ) fmt--;
- break;
- }/* 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.
- */
- 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);
- }
- }/* End for loop over the format string */
- return errorflag ? -1 : count;
-} /* End of function */
-
-
-/* This structure is used to store state information about the
-** write to memory that is currently in progress.
-*/
-struct sgMprintf {
- char *zBase; /* A base allocation */
- char *zText; /* The string collected so far */
- int nChar; /* Length of the string so far */
- int nTotal; /* Output size if unconstrained */
- int nAlloc; /* Amount of space allocated in zText */
- void *(*xRealloc)(void*,int); /* Function used to realloc memory */
-};
-
-/*
-** This function implements the callback from vxprintf.
-**
-** This routine add nNewChar characters of text in zNewText to
-** the sgMprintf structure pointed to by "arg".
-*/
-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{
- pM->zText = pM->xRealloc(pM->zText, pM->nAlloc);
- }
- }
- }
- if( pM->zText ){
- if( nNewChar>0 ){
- memcpy(&pM->zText[pM->nChar], zNewText, nNewChar);
- pM->nChar += nNewChar;
- }
- pM->zText[pM->nChar] = 0;
- }
-}
-
-/*
-** This routine is a wrapper around xprintf() that invokes mout() as
-** the consumer.
-*/
-static char *base_vprintf(
- void *(*xRealloc)(void*,int), /* Routine to realloc memory. May be NULL */
- int useInternal, /* Use internal %-conversions if true */
- char *zInitBuf, /* Initially write here, before mallocing */
- int nInitBuf, /* Size of zInitBuf[] */
- const char *zFormat, /* format string */
- va_list ap /* arguments */
-){
- 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);
- memcpy(sM.zText, sM.zBase, sM.nChar+1);
- }else if( sM.nAlloc>sM.nChar+10 ){
- sM.zText = xRealloc(sM.zText, sM.nChar+1);
- }
- }
- return sM.zText;
-}
-
-/*
-** Realloc that is a real function, not a macro.
-*/
-static void *printf_realloc(void *old, int size){
- return sqliteRealloc(old,size);
-}
-
-/*
-** Print into memory obtained from sqliteMalloc(). Use the internal
-** %-conversion extensions.
-*/
-char *sqliteVMPrintf(const char *zFormat, va_list ap){
- char zBase[1000];
- return base_vprintf(printf_realloc, 1, zBase, sizeof(zBase), zFormat, ap);
-}
-
-/*
-** Print into memory obtained from sqliteMalloc(). Use the internal
-** %-conversion extensions.
-*/
-char *sqliteMPrintf(const char *zFormat, ...){
- va_list ap;
- char *z;
- char zBase[1000];
- va_start(ap, zFormat);
- z = base_vprintf(printf_realloc, 1, zBase, sizeof(zBase), zFormat, ap);
- va_end(ap);
- return z;
-}
-
-/*
-** Print into memory obtained from malloc(). Do not use the internal
-** %-conversion extensions. This routine is for use by external users.
-*/
-char *sqlite_mprintf(const char *zFormat, ...){
- va_list ap;
- char *z;
- char zBuf[200];
-
- va_start(ap,zFormat);
- z = base_vprintf((void*(*)(void*,int))realloc, 0,
- zBuf, sizeof(zBuf), zFormat, ap);
- va_end(ap);
- return z;
-}
-
-/* This is the varargs version of sqlite_mprintf.
-*/
-char *sqlite_vmprintf(const char *zFormat, va_list ap){
- char zBuf[200];
- return base_vprintf((void*(*)(void*,int))realloc, 0,
- zBuf, sizeof(zBuf), zFormat, ap);
-}
-
-/*
-** sqlite_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.
-*/
-char *sqlite_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;
-}
-
-/*
-** The following four routines implement the varargs versions of the
-** sqlite_exec() and sqlite_get_table() interfaces. See the sqlite.h
-** header files for a more detailed description of how these interfaces
-** work.
-**
-** These routines are all just simple wrappers.
-*/
-int sqlite_exec_printf(
- sqlite *db, /* An open database */
- const char *sqlFormat, /* printf-style format string for the SQL */
- sqlite_callback xCallback, /* Callback function */
- void *pArg, /* 1st argument to callback function */
- char **errmsg, /* Error msg written here */
- ... /* Arguments to the format string. */
-){
- va_list ap;
- int rc;
-
- va_start(ap, errmsg);
- rc = sqlite_exec_vprintf(db, sqlFormat, xCallback, pArg, errmsg, ap);
- va_end(ap);
- return rc;
-}
-int sqlite_exec_vprintf(
- sqlite *db, /* An open database */
- const char *sqlFormat, /* printf-style format string for the SQL */
- sqlite_callback xCallback, /* Callback function */
- void *pArg, /* 1st argument to callback function */
- char **errmsg, /* Error msg written here */
- va_list ap /* Arguments to the format string. */
-){
- char *zSql;
- int rc;
-
- zSql = sqlite_vmprintf(sqlFormat, ap);
- rc = sqlite_exec(db, zSql, xCallback, pArg, errmsg);
- free(zSql);
- return rc;
-}
-int sqlite_get_table_printf(
- sqlite *db, /* An open database */
- const char *sqlFormat, /* printf-style format string for the SQL */
- char ***resultp, /* Result written to a char *[] that this points to */
- int *nrow, /* Number of result rows written here */
- int *ncol, /* Number of result columns written here */
- char **errmsg, /* Error msg written here */
- ... /* Arguments to the format string */
-){
- va_list ap;
- int rc;
-
- va_start(ap, errmsg);
- rc = sqlite_get_table_vprintf(db, sqlFormat, resultp, nrow, ncol, errmsg, ap);
- va_end(ap);
- return rc;
-}
-int sqlite_get_table_vprintf(
- sqlite *db, /* An open database */
- const char *sqlFormat, /* printf-style format string for the SQL */
- char ***resultp, /* Result written to a char *[] that this points to */
- int *nrow, /* Number of result rows written here */
- int *ncolumn, /* Number of result columns written here */
- char **errmsg, /* Error msg written here */
- va_list ap /* Arguments to the format string */
-){
- char *zSql;
- int rc;
-
- zSql = sqlite_vmprintf(sqlFormat, ap);
- rc = sqlite_get_table(db, zSql, resultp, nrow, ncolumn, errmsg);
- free(zSql);
- return rc;
-}
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