dlls/msvcrt/printf.h

   1 /*
   2  * Copyright 2011 Piotr Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #ifdef PRINTF_WIDE
  20 #define APICHAR MSVCRT_wchar_t
  21 #define CONVCHAR char
  22 #define FUNC_NAME(func) func ## _w
  23 #else
  24 #define APICHAR char
  25 #define CONVCHAR MSVCRT_wchar_t
  26 #define FUNC_NAME(func) func ## _a
  27 #endif
  28
  29 #ifndef signbit
  30 #define signbit(x) ((x) < 0)
  31 #endif
  32
  33 typedef struct FUNC_NAME(pf_flags_t)
  34 {
  35     APICHAR Sign, LeftAlign, Alternate, PadZero;
  36     int FieldLength, Precision;
  37     APICHAR IntegerLength, IntegerDouble, IntegerNative;
  38     APICHAR WideString, NaturalString;
  39     APICHAR Format;
  40 } FUNC_NAME(pf_flags);
  41
  42 struct FUNC_NAME(_str_ctx) {
  43     MSVCRT_size_t len;
  44     APICHAR *buf;
  45 };
  46
  47 static int FUNC_NAME(puts_clbk_str)(void *ctx, int len, const APICHAR *str)
  48 {
  49     struct FUNC_NAME(_str_ctx) *out = ctx;
  50
  51     if(!out->buf)
  52         return len;
  53
  54     if(out->len < len) {
  55         memcpy(out->buf, str, out->len*sizeof(APICHAR));
  56         out->buf += out->len;
  57         out->len = 0;
  58         return -1;
  59     }
  60
  61     memcpy(out->buf, str, len*sizeof(APICHAR));
  62     out->buf += len;
  63     out->len -= len;
  64     return len;
  65 }
  66
  67 static inline const APICHAR* FUNC_NAME(pf_parse_int)(const APICHAR *fmt, int *val)
  68 {
  69     *val = 0;
  70
  71     while(isdigit(*fmt)) {
  72         *val *= 10;
  73         *val += *fmt++ - '0';
  74     }
  75
  76     return fmt;
  77 }
  78
  79 /* pf_fill: takes care of signs, alignment, zero and field padding */
  80 static inline int FUNC_NAME(pf_fill)(FUNC_NAME(puts_clbk) pf_puts, void *puts_ctx,
  81         int len, FUNC_NAME(pf_flags) *flags, BOOL left)
  82 {
  83     int i, r = 0, written;
  84
  85     if(flags->Sign && !strchr("diaeEfFgG", flags->Format))
  86         flags->Sign = 0;
  87
  88     if(left && flags->Sign) {
  89         flags->FieldLength--;
  90         if(flags->PadZero)
  91             r = pf_puts(puts_ctx, 1, &flags->Sign);
  92     }
  93     written = r;
  94
  95     if((!left && flags->LeftAlign) || (left && !flags->LeftAlign)) {
  96         APICHAR ch;
  97
  98         if(left && flags->PadZero)
  99             ch = '0';
 100         else
 101             ch = ' ';
 102
 103         for(i=0; i<flags->FieldLength-len && r>=0; i++) {
 104             r = pf_puts(puts_ctx, 1, &ch);
 105             written += r;
 106         }
 107     }
 108
 109
 110     if(r>=0 && left && flags->Sign && !flags->PadZero) {
 111         r = pf_puts(puts_ctx, 1, &flags->Sign);
 112         written += r;
 113     }
 114
 115     return r>=0 ? written : r;
 116 }
 117
 118 static inline int FUNC_NAME(pf_output_wstr)(FUNC_NAME(puts_clbk) pf_puts, void *puts_ctx,
 119         const MSVCRT_wchar_t *str, int len, MSVCRT_pthreadlocinfo locinfo)
 120 {
 121 #ifdef PRINTF_WIDE
 122     return pf_puts(puts_ctx, len, str);
 123 #else
 124     LPSTR out;
 125     BOOL def_char;
 126     int len_a = WideCharToMultiByte(locinfo->lc_codepage, WC_NO_BEST_FIT_CHARS,
 127             str, len, NULL, 0, NULL, &def_char);
 128     if(def_char)
 129         return 0;
 130
 131     out = HeapAlloc(GetProcessHeap(), 0, len_a);
 132     if(!out)
 133         return -1;
 134
 135     WideCharToMultiByte(locinfo->lc_codepage, WC_NO_BEST_FIT_CHARS,
 136             str, len, out, len_a, NULL, NULL);
 137     len = pf_puts(puts_ctx, len_a, out);
 138     HeapFree(GetProcessHeap(), 0, out);
 139     return len;
 140 #endif
 141 }
 142
 143 static inline int FUNC_NAME(pf_output_str)(FUNC_NAME(puts_clbk) pf_puts, void *puts_ctx,
 144         const char *str, int len, MSVCRT_pthreadlocinfo locinfo)
 145 {
 146 #ifdef PRINTF_WIDE
 147     LPWSTR out;
 148     int len_w = MultiByteToWideChar(locinfo->lc_codepage, 0, str, len, NULL, 0);
 149
 150     out = HeapAlloc(GetProcessHeap(), 0, len_w*sizeof(WCHAR));
 151     if(!out)
 152         return -1;
 153
 154     MultiByteToWideChar(locinfo->lc_codepage, 0, str, len, out, len_w);
 155     len = pf_puts(puts_ctx, len_w, out);
 156     HeapFree(GetProcessHeap(), 0, out);
 157     return len;
 158 #else
 159     return pf_puts(puts_ctx, len, str);
 160 #endif
 161 }
 162
 163 static inline int FUNC_NAME(pf_output_format_wstr)(FUNC_NAME(puts_clbk) pf_puts, void *puts_ctx,
 164         const MSVCRT_wchar_t *str, int len, FUNC_NAME(pf_flags) *flags, MSVCRT_pthreadlocinfo locinfo)
 165 {
 166     int r, ret;
 167
 168     if(len < 0)
 169         len = strlenW(str);
 170
 171     if(flags->Precision>=0 && flags->Precision<len)
 172         len = flags->Precision;
 173
 174     r = FUNC_NAME(pf_fill)(pf_puts, puts_ctx, len, flags, TRUE);
 175     ret = r;
 176     if(r >= 0) {
 177         r = FUNC_NAME(pf_output_wstr)(pf_puts, puts_ctx, str, len, locinfo);
 178         ret += r;
 179     }
 180     if(r >= 0) {
 181         r = FUNC_NAME(pf_fill)(pf_puts, puts_ctx, len, flags, FALSE);
 182         ret += r;
 183     }
 184
 185     return r>=0 ? ret : r;
 186 }
 187
 188 static inline int FUNC_NAME(pf_output_format_str)(FUNC_NAME(puts_clbk) pf_puts, void *puts_ctx,
 189         const char *str, int len, FUNC_NAME(pf_flags) *flags, MSVCRT_pthreadlocinfo locinfo)
 190 {
 191     int r, ret;
 192
 193     if(len < 0)
 194         len = strlen(str);
 195
 196     if(flags->Precision>=0 && flags->Precision<len)
 197         len = flags->Precision;
 198
 199     r = FUNC_NAME(pf_fill)(pf_puts, puts_ctx, len, flags, TRUE);
 200     ret = r;
 201     if(r >= 0) {
 202         r = FUNC_NAME(pf_output_str)(pf_puts, puts_ctx, str, len, locinfo);
 203         ret += r;
 204     }
 205     if(r >= 0) {
 206         r = FUNC_NAME(pf_fill)(pf_puts, puts_ctx, len, flags, FALSE);
 207         ret += r;
 208     }
 209
 210     return r>=0 ? ret : r;
 211 }
 212
 213 static inline int FUNC_NAME(pf_handle_string)(FUNC_NAME(puts_clbk) pf_puts, void *puts_ctx,
 214         const void *str, int len, FUNC_NAME(pf_flags) *flags, MSVCRT_pthreadlocinfo locinfo, BOOL legacy_wide)
 215 {
 216     BOOL api_is_wide = sizeof(APICHAR) == sizeof(MSVCRT_wchar_t);
 217     BOOL complement_is_narrow = legacy_wide ? api_is_wide : FALSE;
 218 #ifdef PRINTF_WIDE
 219     static const MSVCRT_wchar_t nullW[] = {'(','n','u','l','l',')',0};
 220
 221     if(!str)
 222         return FUNC_NAME(pf_output_format_wstr)(pf_puts, puts_ctx, nullW, 6, flags, locinfo);
 223 #else
 224     if(!str)
 225         return FUNC_NAME(pf_output_format_str)(pf_puts, puts_ctx, "(null)", 6, flags, locinfo);
 226 #endif
 227
 228     if((flags->NaturalString && api_is_wide) || flags->WideString || flags->IntegerLength=='l')
 229         return FUNC_NAME(pf_output_format_wstr)(pf_puts, puts_ctx, str, len, flags, locinfo);
 230     if((flags->NaturalString && !api_is_wide) || flags->IntegerLength == 'h')
 231         return FUNC_NAME(pf_output_format_str)(pf_puts, puts_ctx, str, len, flags, locinfo);
 232
 233     if((flags->Format=='S' || flags->Format=='C') == complement_is_narrow)
 234         return FUNC_NAME(pf_output_format_str)(pf_puts, puts_ctx, str, len, flags, locinfo);
 235     else
 236         return FUNC_NAME(pf_output_format_wstr)(pf_puts, puts_ctx, str, len, flags, locinfo);
 237 }
 238
 239 static inline void FUNC_NAME(pf_rebuild_format_string)(char *p, FUNC_NAME(pf_flags) *flags)
 240 {
 241     *p++ = '%';
 242     if(flags->Alternate)
 243         *p++ = flags->Alternate;
 244     if(flags->Precision >= 0) {
 245         sprintf(p, ".%d", flags->Precision);
 246         p += strlen(p);
 247     }
 248     *p++ = flags->Format;
 249     *p++ = 0;
 250 }
 251
 252 /* pf_integer_conv:  prints x to buf, including alternate formats and
 253    additional precision digits, but not field characters or the sign */
 254 static inline void FUNC_NAME(pf_integer_conv)(APICHAR *buf, int buf_len,
 255         FUNC_NAME(pf_flags) *flags, LONGLONG x)
 256 {
 257     unsigned int base;
 258     const char *digits;
 259     int i, j, k;
 260
 261     if(flags->Format == 'o')
 262         base = 8;
 263     else if(flags->Format=='x' || flags->Format=='X')
 264         base = 16;
 265     else
 266         base = 10;
 267
 268     if(flags->Format == 'X')
 269         digits = "0123456789ABCDEFX";
 270     else
 271         digits = "0123456789abcdefx";
 272
 273     if(x<0 && (flags->Format=='d' || flags->Format=='i')) {
 274         x = -x;
 275         flags->Sign = '-';
 276     }
 277
 278     i = 0;
 279     if(x == 0) {
 280         flags->Alternate = 0;
 281         if(flags->Precision)
 282             buf[i++] = '0';
 283     } else {
 284         while(x != 0) {
 285             j = (ULONGLONG)x%base;
 286             x = (ULONGLONG)x/base;
 287             buf[i++] = digits[j];
 288         }
 289     }
 290     k = flags->Precision-i;
 291     while(k-- > 0)
 292         buf[i++] = '0';
 293     if(flags->Alternate) {
 294         if(base == 16) {
 295             buf[i++] = digits[16];
 296             buf[i++] = '0';
 297         } else if(base==8 && buf[i-1]!='0')
 298             buf[i++] = '0';
 299     }
 300
 301     /* Adjust precision so pf_fill won't truncate the number later */
 302     flags->Precision = i;
 303
 304     buf[i] = '\0';
 305     j = 0;
 306     while(--i > j) {
 307         APICHAR tmp = buf[j];
 308         buf[j] = buf[i];
 309         buf[i] = tmp;
 310         j++;
 311     }
 312 }
 313
 314 static inline void FUNC_NAME(pf_fixup_exponent)(char *buf, BOOL three_digit_exp)
 315 {
 316     char* tmp = buf;
 317
 318     while(tmp[0] && toupper(tmp[0])!='E')
 319         tmp++;
 320
 321     if(tmp[0] && (tmp[1]=='+' || tmp[1]=='-') &&
 322             isdigit(tmp[2]) && isdigit(tmp[3])) {
 323 #if _MSVCR_VER >= 140
 324         BOOL two_digit_exp = !three_digit_exp;
 325 #else
 326         BOOL two_digit_exp = (MSVCRT__get_output_format() == MSVCRT__TWO_DIGIT_EXPONENT);
 327 #endif
 328
 329         tmp += 2;
 330         if(isdigit(tmp[2])) {
 331             if(two_digit_exp && tmp[0]=='0') {
 332                 tmp[0] = tmp[1];
 333                 tmp[1] = tmp[2];
 334                 tmp[2] = tmp[3];
 335             }
 336
 337             return; /* Exponent already 3 digits */
 338         }else if(two_digit_exp) {
 339             return;
 340         }
 341
 342         tmp[3] = tmp[2];
 343         tmp[2] = tmp[1];
 344         tmp[1] = tmp[0];
 345         tmp[0] = '0';
 346     }
 347 }
 348
 349 int FUNC_NAME(pf_printf)(FUNC_NAME(puts_clbk) pf_puts, void *puts_ctx, const APICHAR *fmt,
 350         MSVCRT__locale_t locale, DWORD options,
 351         args_clbk pf_args, void *args_ctx, __ms_va_list *valist)
 352 {
 353     MSVCRT_pthreadlocinfo locinfo;
 354     const APICHAR *q, *p = fmt;
 355     APICHAR buf[32];
 356     int written = 0, pos, i;
 357     FUNC_NAME(pf_flags) flags;
 358     BOOL positional_params = options & MSVCRT_PRINTF_POSITIONAL_PARAMS;
 359     BOOL invoke_invalid_param_handler = options & MSVCRT_PRINTF_INVOKE_INVALID_PARAM_HANDLER;
 360 #if _MSVCR_VER >= 140
 361     BOOL legacy_wide = options & UCRTBASE_PRINTF_LEGACY_WIDE_SPECIFIERS;
 362     BOOL legacy_msvcrt_compat = options & UCRTBASE_PRINTF_LEGACY_MSVCRT_COMPATIBILITY;
 363     BOOL three_digit_exp = options & UCRTBASE_PRINTF_LEGACY_THREE_DIGIT_EXPONENTS;
 364 #else
 365     BOOL legacy_wide = TRUE, legacy_msvcrt_compat = TRUE, three_digit_exp = TRUE;
 366 #endif
 367
 368     TRACE("Format is: %s\n", FUNC_NAME(debugstr)(fmt));
 369
 370     if(!locale)
 371         locinfo = get_locinfo();
 372     else
 373         locinfo = locale->locinfo;
 374
 375     while(*p) {
 376         /* output characters before '%' */
 377         for(q=p; *q && *q!='%'; q++);
 378         if(p != q) {
 379             i = pf_puts(puts_ctx, q-p, p);
 380             if(i < 0)
 381                 return i;
 382
 383             written += i;
 384             p = q;
 385             continue;
 386         }
 387
 388         /* *p == '%' here */
 389         p++;
 390
 391         /* output a single '%' character */
 392         if(*p == '%') {
 393             i = pf_puts(puts_ctx, 1, p++);
 394             if(i < 0)
 395                 return i;
 396
 397             written += i;
 398             continue;
 399         }
 400
 401         /* check parameter position */
 402         if(positional_params && (q = FUNC_NAME(pf_parse_int)(p, &pos)) && *q=='$')
 403             p = q+1;
 404         else
 405             pos = -1;
 406
 407         /* parse the flags */
 408         memset(&flags, 0, sizeof(flags));
 409         while(*p) {
 410             if(*p=='+' || *p==' ') {
 411                 if(flags.Sign != '+')
 412                     flags.Sign = *p;
 413             } else if(*p == '-')
 414                 flags.LeftAlign = *p;
 415             else if(*p == '0')
 416                 flags.PadZero = *p;
 417             else if(*p == '#')
 418                 flags.Alternate = *p;
 419             else
 420                 break;
 421
 422             p++;
 423         }
 424
 425         /* parse the width */
 426         if(*p == '*') {
 427             p++;
 428             if(positional_params && (q = FUNC_NAME(pf_parse_int)(p, &i)) && *q=='$')
 429                 p = q+1;
 430             else
 431                 i = -1;
 432
 433             flags.FieldLength = pf_args(args_ctx, i, VT_INT, valist).get_int;
 434             if(flags.FieldLength < 0) {
 435                 flags.LeftAlign = '-';
 436                 flags.FieldLength = -flags.FieldLength;
 437             }
 438         } else while(isdigit(*p)) {
 439             flags.FieldLength *= 10;
 440             flags.FieldLength += *p++ - '0';
 441         }
 442
 443         /* parse the precision */
 444         flags.Precision = -1;
 445         if(*p == '.') {
 446             flags.Precision = 0;
 447             p++;
 448             if(*p == '*') {
 449                 p++;
 450                 if(positional_params && (q = FUNC_NAME(pf_parse_int)(p, &i)) && *q=='$')
 451                     p = q+1;
 452                 else
 453                     i = -1;
 454
 455                 flags.Precision = pf_args(args_ctx, i, VT_INT, valist).get_int;
 456             } else while(isdigit(*p)) {
 457                 flags.Precision *= 10;
 458                 flags.Precision += *p++ - '0';
 459             }
 460         }
 461
 462         /* parse argument size modifier */
 463         while(*p) {
 464             if(*p=='l' && *(p+1)=='l') {
 465                 flags.IntegerDouble++;
 466                 p += 2;
 467             } else if(*p=='h' || *p=='l' || *p=='L') {
 468                 flags.IntegerLength = *p;
 469                 p++;
 470             } else if(*p == 'I') {
 471                 if(*(p+1)=='6' && *(p+2)=='4') {
 472                     flags.IntegerDouble++;
 473                     p += 3;
 474                 } else if(*(p+1)=='3' && *(p+2)=='2')
 475                     p += 3;
 476                 else if(isdigit(*(p+1)) || !*(p+1))
 477                     break;
 478                 else
 479                     flags.IntegerNative = *p++;
 480             } else if(*p == 'w')
 481                 flags.WideString = *p++;
 482 #if _MSVCR_VER >= 140
 483             else if(*p == 'z')
 484                 flags.IntegerNative = *p++;
 485             else if(*p == 'T')
 486                 flags.NaturalString = *p++;
 487 #endif
 488             else if((*p == 'F' || *p == 'N') && legacy_msvcrt_compat)
 489                 p++; /* ignore */
 490             else
 491                 break;
 492         }
 493
 494         flags.Format = *p;
 495
 496         if(flags.Format == 's' || flags.Format == 'S') {
 497             i = FUNC_NAME(pf_handle_string)(pf_puts, puts_ctx,
 498                     pf_args(args_ctx, pos, VT_PTR, valist).get_ptr,
 499                     -1,  &flags, locinfo, legacy_wide);
 500         } else if(flags.Format == 'c' || flags.Format == 'C') {
 501             int ch = pf_args(args_ctx, pos, VT_INT, valist).get_int;
 502
 503             i = FUNC_NAME(pf_handle_string)(pf_puts, puts_ctx, &ch, 1, &flags, locinfo, legacy_wide);
 504         } else if(flags.Format == 'p') {
 505             flags.Format = 'X';
 506             flags.PadZero = '0';
 507             i = flags.Precision;
 508             flags.Precision = 2*sizeof(void*);
 509             FUNC_NAME(pf_integer_conv)(buf, sizeof(buf)/sizeof(APICHAR), &flags,
 510                                        (ULONG_PTR)pf_args(args_ctx, pos, VT_PTR, valist).get_ptr);
 511             flags.PadZero = 0;
 512             flags.Precision = i;
 513
 514 #ifdef PRINTF_WIDE
 515             i = FUNC_NAME(pf_output_format_wstr)(pf_puts, puts_ctx, buf, -1, &flags, locinfo);
 516 #else
 517             i = FUNC_NAME(pf_output_format_str)(pf_puts, puts_ctx, buf, -1, &flags, locinfo);
 518 #endif
 519         } else if(flags.Format == 'n') {
 520             int *used;
 521
 522             if(!n_format_enabled) {
 523                 MSVCRT_INVALID_PMT("\'n\' format specifier disabled", MSVCRT_EINVAL);
 524                 return -1;
 525             }
 526
 527             used = pf_args(args_ctx, pos, VT_PTR, valist).get_ptr;
 528             *used = written;
 529             i = 0;
 530         } else if(flags.Format && strchr("diouxX", flags.Format)) {
 531             APICHAR *tmp = buf;
 532             int max_len;
 533
 534             /* 0 padding is added after '0x' if Alternate flag is in use */
 535             if((flags.Format=='x' || flags.Format=='X') && flags.PadZero && flags.Alternate
 536                     && !flags.LeftAlign && flags.Precision<flags.FieldLength-2)
 537                 flags.Precision = flags.FieldLength - 2;
 538
 539             max_len = (flags.FieldLength>flags.Precision ? flags.FieldLength : flags.Precision) + 10;
 540             if(max_len > sizeof(buf)/sizeof(APICHAR))
 541                 tmp = HeapAlloc(GetProcessHeap(), 0, max_len);
 542             if(!tmp)
 543                 return -1;
 544
 545             if(flags.IntegerDouble || (flags.IntegerNative && sizeof(void*) == 8))
 546                 FUNC_NAME(pf_integer_conv)(tmp, max_len, &flags, pf_args(args_ctx, pos,
 547                             VT_I8, valist).get_longlong);
 548             else if(flags.Format=='d' || flags.Format=='i')
 549                 FUNC_NAME(pf_integer_conv)(tmp, max_len, &flags, flags.IntegerLength!='h' ?
 550                         pf_args(args_ctx, pos, VT_INT, valist).get_int :
 551                         (short)pf_args(args_ctx, pos, VT_INT, valist).get_int);
 552             else
 553                 FUNC_NAME(pf_integer_conv)(tmp, max_len, &flags, flags.IntegerLength!='h' ?
 554                         (unsigned)pf_args(args_ctx, pos, VT_INT, valist).get_int :
 555                         (unsigned short)pf_args(args_ctx, pos, VT_INT, valist).get_int);
 556
 557 #ifdef PRINTF_WIDE
 558             i = FUNC_NAME(pf_output_format_wstr)(pf_puts, puts_ctx, tmp, -1, &flags, locinfo);
 559 #else
 560             i = FUNC_NAME(pf_output_format_str)(pf_puts, puts_ctx, tmp, -1, &flags, locinfo);
 561 #endif
 562             if(tmp != buf)
 563                 HeapFree(GetProcessHeap(), 0, tmp);
 564         } else if(flags.Format && strchr("aeEfFgG", flags.Format)) {
 565             char float_fmt[20], buf_a[32], *tmp = buf_a, *decimal_point;
 566             int len = flags.Precision + 10;
 567             double val = pf_args(args_ctx, pos, VT_R8, valist).get_double;
 568             int r;
 569             BOOL inf = FALSE, nan = FALSE, ind = FALSE;
 570
 571             if(isinf(val))
 572                 inf = TRUE;
 573             else if(isnan(val)) {
 574                 if(!signbit(val))
 575                     nan = TRUE;
 576                 else
 577                     ind = TRUE;
 578             }
 579
 580             if(inf || nan || ind) {
 581                 if(ind || val<0)
 582                     flags.Sign = '-';
 583
 584                 if(flags.Format=='g' || flags.Format=='G')
 585                     val = (nan ? 1.12345 : 1.1234); /* fraction will be overwritten with #INF, #IND or #QNAN string */
 586                 else
 587                     val = 1;
 588
 589                 if(flags.Format=='a') {
 590                     if(flags.Precision==-1)
 591                         flags.Precision = 6; /* strlen("#INF00") */
 592                 }
 593             }
 594
 595             if(flags.Format=='f' || flags.Format=='F') {
 596                 if(val>-10.0 && val<10.0)
 597                     i = 1;
 598                 else
 599                     i = 1 + log10(val<0 ? -val : val);
 600                 /* Default precision is 6, additional space for sign, separator and nullbyte is required */
 601                 i += (flags.Precision==-1 ? 6 : flags.Precision) + 3;
 602
 603                 if(i > len)
 604                     len = i;
 605             }
 606
 607             if(len > sizeof(buf_a))
 608                 tmp = HeapAlloc(GetProcessHeap(), 0, len);
 609             if(!tmp)
 610                 return -1;
 611
 612             FUNC_NAME(pf_rebuild_format_string)(float_fmt, &flags);
 613             if(val < 0) {
 614                 flags.Sign = '-';
 615                 val = -val;
 616             }
 617
 618             if((inf || nan || ind) && !legacy_msvcrt_compat) {
 619                 static const char inf_str[] = "inf";
 620                 static const char ind_str[] = "nan(ind)";
 621                 static const char nan_str[] = "nan";
 622                 if(inf)
 623                     sprintf(tmp, inf_str);
 624                 else if(ind)
 625                     sprintf(tmp, ind_str);
 626                 else
 627                     sprintf(tmp, nan_str);
 628                 if (strchr("EFG", flags.Format))
 629                     for(i=0; tmp[i]; i++)
 630                         tmp[i] = toupper(tmp[i]);
 631             } else {
 632                 sprintf(tmp, float_fmt, val);
 633                 if(toupper(flags.Format)=='E' || toupper(flags.Format)=='G')
 634                     FUNC_NAME(pf_fixup_exponent)(tmp, three_digit_exp);
 635             }
 636
 637             decimal_point = strchr(tmp, '.');
 638             if(decimal_point) {
 639                 *decimal_point = *locinfo->lconv->decimal_point;
 640
 641                 if(inf || nan || ind) {
 642                     static const char inf_str[] = "#INF";
 643                     static const char ind_str[] = "#IND";
 644                     static const char nan_str[] = "#QNAN";
 645
 646                     const char *str;
 647                     int size;
 648
 649                     if(inf) {
 650                         str = inf_str;
 651                         size = sizeof(inf_str);
 652                     }else if(ind) {
 653                         str = ind_str;
 654                         size = sizeof(ind_str);
 655                     }else {
 656                         str = nan_str;
 657                         size = sizeof(nan_str);
 658                     }
 659
 660                     for(i=1; i<size; i++) {
 661                         if(decimal_point[i]<'0' || decimal_point[i]>'9')
 662                             break;
 663
 664                         decimal_point[i] = str[i-1];
 665                     }
 666
 667                     if(i!=size && i!=1)
 668                         decimal_point[i-1]++;
 669                 }
 670             }
 671
 672             len = strlen(tmp);
 673             i = FUNC_NAME(pf_fill)(pf_puts, puts_ctx, len, &flags, TRUE);
 674             if(i < 0)
 675                 return i;
 676             r = FUNC_NAME(pf_output_str)(pf_puts, puts_ctx, tmp, len, locinfo);
 677             if(r < 0)
 678                 return r;
 679             i += r;
 680             if(tmp != buf_a)
 681                 HeapFree(GetProcessHeap(), 0, tmp);
 682             r = FUNC_NAME(pf_fill)(pf_puts, puts_ctx, len, &flags, FALSE);
 683             if(r < 0)
 684                 return r;
 685             i += r;
 686         } else {
 687             if(invoke_invalid_param_handler) {
 688                 MSVCRT__invalid_parameter(NULL, NULL, NULL, 0, 0);
 689                 *MSVCRT__errno() = MSVCRT_EINVAL;
 690                 return -1;
 691             }
 692
 693             continue;
 694         }
 695
 696         if(i < 0)
 697             return i;
 698         written += i;
 699         p++;
 700     }
 701
 702     return written;
 703 }
 704
 705 #ifndef PRINTF_WIDE
 706 enum types_clbk_flags {
 707     TYPE_CLBK_VA_LIST = 1,
 708     TYPE_CLBK_POSITIONAL = 2,
 709     TYPE_CLBK_ERROR_POS = 4,
 710     TYPE_CLBK_ERROR_TYPE = 8
 711 };
 712
 713 /* This functions stores types of arguments. It uses args[0] internally */
 714 static printf_arg arg_clbk_type(void *ctx, int pos, int type, __ms_va_list *valist)
 715 {
 716     static const printf_arg ret;
 717     printf_arg *args = ctx;
 718
 719     if(pos == -1) {
 720         args[0].get_int |= TYPE_CLBK_VA_LIST;
 721         return ret;
 722     } else
 723         args[0].get_int |= TYPE_CLBK_POSITIONAL;
 724
 725     if(pos<1 || pos>MSVCRT__ARGMAX)
 726         args[0].get_int |= TYPE_CLBK_ERROR_POS;
 727     else if(args[pos].get_int && args[pos].get_int!=type)
 728         args[0].get_int |= TYPE_CLBK_ERROR_TYPE;
 729     else
 730         args[pos].get_int = type;
 731
 732     return ret;
 733 }
 734 #endif
 735
 736 static int FUNC_NAME(create_positional_ctx)(void *args_ctx, const APICHAR *format, __ms_va_list valist)
 737 {
 738     struct FUNC_NAME(_str_ctx) puts_ctx = {INT_MAX, NULL};
 739     printf_arg *args = args_ctx;
 740     int i, j;
 741
 742     i = FUNC_NAME(pf_printf)(FUNC_NAME(puts_clbk_str), &puts_ctx, format, NULL,
 743             MSVCRT_PRINTF_POSITIONAL_PARAMS, arg_clbk_type, args_ctx, NULL);
 744     if(i < 0)
 745         return i;
 746
 747     if(args[0].get_int==0 || args[0].get_int==TYPE_CLBK_VA_LIST)
 748         return 0;
 749     if(args[0].get_int != TYPE_CLBK_POSITIONAL)
 750         return -1;
 751
 752     for(i=MSVCRT__ARGMAX; i>0; i--)
 753         if(args[i].get_int)
 754             break;
 755
 756     for(j=1; j<=i; j++) {
 757         switch(args[j].get_int) {
 758         case VT_I8:
 759             args[j].get_longlong = va_arg(valist, LONGLONG);
 760             break;
 761         case VT_INT:
 762             args[j].get_int = va_arg(valist, int);
 763             break;
 764         case VT_R8:
 765             args[j].get_double = va_arg(valist, double);
 766             break;
 767         case VT_PTR:
 768             args[j].get_ptr = va_arg(valist, void*);
 769             break;
 770         default:
 771             return -1;
 772         }
 773     }
 774
 775     return j;
 776 }
 777
 778 #undef APICHAR
 779 #undef CONVCHAR
 780 #undef FUNC_NAME