diff options
Diffstat (limited to 'kopete/plugins/statistics/sqlite/printf.c')
| -rw-r--r-- | kopete/plugins/statistics/sqlite/printf.c | 825 |
1 files changed, 0 insertions, 825 deletions
diff --git a/kopete/plugins/statistics/sqlite/printf.c b/kopete/plugins/statistics/sqlite/printf.c deleted file mode 100644 index 43e12863..00000000 --- a/kopete/plugins/statistics/sqlite/printf.c +++ /dev/null @@ -1,825 +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 They are very out-of-date but might be useful as -** an historical reference.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(). -** -************************************************************************** -** -** 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 */ -#define etPOINTER 16 /* The %p conversion */ - - -/* -** 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 */ - - -/* -** 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, 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, 0, 2 }, - { 'u', 10, 0, etRADIX, 0, 0 }, - { 'x', 16, 0, etRADIX, 16, 1 }, - { 'X', 16, 0, etRADIX, 0, 4 }, - { 'f', 0, 1, etFLOAT, 0, 0 }, - { 'e', 0, 1, etEXP, 30, 0 }, - { 'E', 0, 1, etEXP, 14, 0 }, - { 'g', 0, 1, etGENERIC, 30, 0 }, - { 'G', 0, 1, etGENERIC, 14, 0 }, - { '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])) - -/* -** 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 */ - etByte flag_longlong; /* True if the "ll" flag is present */ - UINT64_TYPE longvalue; /* Value for integer types */ - LONGDOUBLE_TYPE realvalue; /* Value for real types */ - const 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 const 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; - 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 = 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_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 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; /* Use registers for speed */ - register int base; - cset = &aDigits[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" */ - 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 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++) = aDigits[infop->charset]; - 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*); - if( pToken && pToken->z ){ - (*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); - if( sM.zText ){ - 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 *sqlite3VMPrintf(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 *sqlite3MPrintf(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 *sqlite3_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 sqlite3_mprintf. -*/ -char *sqlite3_vmprintf(const char *zFormat, va_list ap){ - char zBuf[200]; - return base_vprintf((void*(*)(void*,int))realloc, 0, - zBuf, sizeof(zBuf), zFormat, ap); -} - -/* -** 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. -*/ -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) -/* -** 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, ...){ - 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,"%d: %s", getpid(), zBuf); - fflush(stdout); -} -#endif |