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