744 lines
25 KiB
C
744 lines
25 KiB
C
/*
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* general implementation of scanf used by scanf, sscanf, fscanf,
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* _cscanf, wscanf, swscanf and fwscanf
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*
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* Copyright 1996,1998 Marcus Meissner
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* Copyright 1996 Jukka Iivonen
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* Copyright 1997,2000, 2003 Uwe Bonnes
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* Copyright 2000 Jon Griffiths
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* Copyright 2002 Daniel Gudbjartsson
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifdef WIDE_SCANF
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#define _CHAR_ wchar_t
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#define _EOF_ WEOF
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#define _EOF_RET (short)WEOF
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#define _ISSPACE_(c) iswspace(c)
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#define _WIDE2SUPPORTED_(c) c /* No conversion needed (wide to wide) */
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#define _CHAR2SUPPORTED_(c) c /* FIXME: convert char to wide char */
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#define _CHAR2DIGIT_(c, base) wchar2digit((c), (base))
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#define _BITMAPSIZE_ 256*256
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#else /* WIDE_SCANF */
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#define _CHAR_ char
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#define _EOF_ EOF
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#define _EOF_RET EOF
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#define _ISSPACE_(c) isspace(c)
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#define _WIDE2SUPPORTED_(c) c /* FIXME: convert wide char to char */
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#define _CHAR2SUPPORTED_(c) c /* No conversion needed (char to char) */
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#define _CHAR2DIGIT_(c, base) char2digit((c), (base))
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#define _BITMAPSIZE_ 256
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#endif /* WIDE_SCANF */
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#ifdef CONSOLE
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#define _GETC_FUNC_(file) _getch()
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#define _STRTOD_NAME_(func) console_ ## func
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#define _GETC_(file) (consumed++, _getch())
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#define _UNGETC_(nch, file) do { _ungetch(nch); consumed--; } while(0)
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#define _LOCK_FILE_(file) _lock_file(MSVCRT_stdin)
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#define _UNLOCK_FILE_(file) _unlock_file(MSVCRT_stdin)
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#ifdef WIDE_SCANF
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#ifdef SECURE
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#define _FUNCTION_ static int vcwscanf_s_l(const wchar_t *format, _locale_t locale, __ms_va_list ap)
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#else /* SECURE */
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#define _FUNCTION_ static int vcwscanf_l(const wchar_t *format, _locale_t locale, __ms_va_list ap)
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#endif /* SECURE */
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#else /* WIDE_SCANF */
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#ifdef SECURE
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#define _FUNCTION_ static int vcscanf_s_l(const char *format, _locale_t locale, __ms_va_list ap)
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#else /* SECURE */
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#define _FUNCTION_ static int vcscanf_l(const char *format, _locale_t locale, __ms_va_list ap)
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#endif /* SECURE */
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#endif /* WIDE_SCANF */
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#else
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#ifdef STRING
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#undef _EOF_
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#define _EOF_ 0
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#define _GETC_FUNC_(file) (*file++)
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#ifdef WIDE_SCANF
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#define _STRTOD_NAME_(func) wstr_ ## func
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#else
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#define _STRTOD_NAME_(func) str_ ## func
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#endif
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#ifdef STRING_LEN
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#ifdef WIDE_SCANF
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#define _GETC_(file) (consumed++, consumed>length ? '\0' : *file++)
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#else /* WIDE_SCANF */
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#define _GETC_(file) (consumed++, consumed>length ? '\0' : (unsigned char)*file++)
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#endif /* WIDE_SCANF */
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#define _UNGETC_(nch, file) do { file--; consumed--; } while(0)
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#define _LOCK_FILE_(file) do {} while(0)
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#define _UNLOCK_FILE_(file) do {} while(0)
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#ifdef WIDE_SCANF
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#ifdef SECURE
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#define _FUNCTION_ static int vsnwscanf_s_l(const wchar_t *file, size_t length, const wchar_t *format, _locale_t locale, __ms_va_list ap)
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#else /* SECURE */
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#define _FUNCTION_ static int vsnwscanf_l(const wchar_t *file, size_t length, const wchar_t *format, _locale_t locale, __ms_va_list ap)
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#endif /* SECURE */
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#else /* WIDE_SCANF */
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#ifdef SECURE
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#define _FUNCTION_ static int vsnscanf_s_l(const char *file, size_t length, const char *format, _locale_t locale, __ms_va_list ap)
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#else /* SECURE */
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#define _FUNCTION_ static int vsnscanf_l(const char *file, size_t length, const char *format, _locale_t locale, __ms_va_list ap)
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#endif /* SECURE */
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#endif /* WIDE_SCANF */
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#else /* STRING_LEN */
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#ifdef WIDE_SCANF
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#define _GETC_(file) (consumed++, *file++)
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#else /* WIDE_SCANF */
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#define _GETC_(file) (consumed++, (unsigned char)*file++)
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#endif /* WIDE_SCANF */
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#define _UNGETC_(nch, file) do { file--; consumed--; } while(0)
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#define _LOCK_FILE_(file) do {} while(0)
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#define _UNLOCK_FILE_(file) do {} while(0)
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#ifdef WIDE_SCANF
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#ifdef SECURE
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#define _FUNCTION_ static int vswscanf_s_l(const wchar_t *file, const wchar_t *format, _locale_t locale, __ms_va_list ap)
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#else /* SECURE */
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#define _FUNCTION_ static int vswscanf_l(const wchar_t *file, const wchar_t *format, _locale_t locale, __ms_va_list ap)
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#endif /* SECURE */
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#else /* WIDE_SCANF */
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#ifdef SECURE
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#define _FUNCTION_ static int vsscanf_s_l(const char *file, const char *format, _locale_t locale, __ms_va_list ap)
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#else /* SECURE */
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#define _FUNCTION_ static int vsscanf_l(const char *file, const char *format, _locale_t locale, __ms_va_list ap)
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#endif /* SECURE */
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#endif /* WIDE_SCANF */
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#endif /* STRING_LEN */
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#else /* STRING */
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#ifdef WIDE_SCANF
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#define _GETC_FUNC_(file) fgetwc(file)
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#define _STRTOD_NAME_(func) filew_ ## func
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#define _GETC_(file) (consumed++, fgetwc(file))
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#define _UNGETC_(nch, file) do { ungetwc(nch, file); consumed--; } while(0)
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#define _LOCK_FILE_(file) _lock_file(file)
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#define _UNLOCK_FILE_(file) _unlock_file(file)
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#ifdef SECURE
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#define _FUNCTION_ static int vfwscanf_s_l(FILE* file, const wchar_t *format, _locale_t locale, __ms_va_list ap)
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#else /* SECURE */
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#define _FUNCTION_ static int vfwscanf_l(FILE* file, const wchar_t *format, _locale_t locale, __ms_va_list ap)
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#endif /* SECURE */
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#else /* WIDE_SCANF */
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#define _GETC_FUNC_(file) fgetc(file)
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#define _STRTOD_NAME_(func) file_ ## func
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#define _GETC_(file) (consumed++, fgetc(file))
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#define _UNGETC_(nch, file) do { ungetc(nch, file); consumed--; } while(0)
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#define _LOCK_FILE_(file) _lock_file(file)
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#define _UNLOCK_FILE_(file) _unlock_file(file)
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#ifdef SECURE
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#define _FUNCTION_ static int vfscanf_s_l(FILE* file, const char *format, _locale_t locale, __ms_va_list ap)
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#else /* SECURE */
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#define _FUNCTION_ static int vfscanf_l(FILE* file, const char *format, _locale_t locale, __ms_va_list ap)
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#endif /* SECURE */
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#endif /* WIDE_SCANF */
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#endif /* STRING */
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#endif /* CONSOLE */
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#if (!defined(SECURE) && !defined(STRING_LEN) && (!defined(CONSOLE) || !defined(WIDE_SCANF)))
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struct _STRTOD_NAME_(strtod_scanf_ctx) {
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pthreadlocinfo locinfo;
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#ifdef STRING
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const _CHAR_ *file;
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#else
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FILE *file;
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#endif
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int length;
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int read;
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int cur;
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int unget;
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BOOL err;
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};
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static wchar_t _STRTOD_NAME_(strtod_scanf_get)(void *ctx)
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{
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struct _STRTOD_NAME_(strtod_scanf_ctx) *context = ctx;
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context->cur = _EOF_;
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if (!context->length) return WEOF;
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if (context->unget != _EOF_) {
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context->cur = context->unget;
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context->unget = _EOF_;
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} else {
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context->cur = _GETC_FUNC_(context->file);
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if (context->cur == _EOF_) return WEOF;
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}
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if (context->length > 0) context->length--;
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context->read++;
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return context->cur;
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}
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static void _STRTOD_NAME_(strtod_scanf_unget)(void *ctx)
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{
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struct _STRTOD_NAME_(strtod_scanf_ctx) *context = ctx;
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if (context->length >= 0) context->length++;
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context->read--;
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if (context->unget != _EOF_ || context->cur == _EOF_) {
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context->err = TRUE;
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return;
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}
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context->unget = context->cur;
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}
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#endif
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_FUNCTION_ {
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pthreadlocinfo locinfo;
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int rd = 0, consumed = 0;
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int nch;
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if (!*format) return 0;
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#ifndef WIDE_SCANF
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#ifdef CONSOLE
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TRACE("(%s):\n", debugstr_a(format));
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#else /* CONSOLE */
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#ifdef STRING
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TRACE("%s (%s)\n", debugstr_a(file), debugstr_a(format));
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#else /* STRING */
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TRACE("%p (%s)\n", file, debugstr_a(format));
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#endif /* STRING */
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#endif /* CONSOLE */
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#endif /* WIDE_SCANF */
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_LOCK_FILE_(file);
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nch = _GETC_(file);
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if (nch == _EOF_) {
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_UNLOCK_FILE_(file);
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return _EOF_RET;
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}
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if(!locale)
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locinfo = get_locinfo();
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else
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locinfo = locale->locinfo;
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while (*format) {
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/* a whitespace character in the format string causes scanf to read,
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* but not store, all consecutive white-space characters in the input
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* up to the next non-white-space character. One white space character
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* in the input matches any number (including zero) and combination of
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* white-space characters in the input. */
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if (_ISSPACE_(*format)) {
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/* skip whitespace */
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while ((nch!=_EOF_) && _ISSPACE_(nch))
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nch = _GETC_(file);
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}
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/* a format specification causes scanf to read and convert characters
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* in the input into values of a specified type. The value is assigned
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* to an argument in the argument list. Format specifications have
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* the form %[*][width][{h | l | I64 | L}]type */
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else if (*format == '%') {
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int st = 0; int suppress = 0; int width = 0;
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int base;
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int h_prefix = 0;
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int l_prefix = 0;
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int L_prefix = 0;
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int w_prefix = 0;
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int prefix_finished = 0;
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int I64_prefix = 0;
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format++;
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/* look for leading asterisk, which means 'suppress assignment of
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* this field'. */
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if (*format=='*') {
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format++;
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suppress=1;
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}
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/* read prefix (if any) */
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while (!prefix_finished) {
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/* look for width specification */
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while (*format >= '0' && *format <= '9') {
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width *= 10;
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width += *format++ - '0';
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}
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switch(*format) {
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case 'h': h_prefix++; break;
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case 'l':
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if(*(format+1) == 'l') {
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I64_prefix = 1;
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format++;
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}
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l_prefix = 1;
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break;
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case 'w': w_prefix = 1; break;
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case 'L': L_prefix = 1; break;
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case 'I':
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if (*(format + 1) == '6' &&
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*(format + 2) == '4') {
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I64_prefix = 1;
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format += 2;
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break;
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}
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else if (*(format + 1) == '3' &&
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*(format + 2) == '2') {
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format += 2;
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break;
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}
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/* fall through */
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#if _MSVCR_VER == 0 || _MSVCR_VER >= 140
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case 'z':
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#endif
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if (sizeof(void *) == sizeof(LONGLONG)) I64_prefix = 1;
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break;
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default:
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prefix_finished = 1;
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}
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if (!prefix_finished) format++;
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}
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if (width==0) width=-1; /* no width spec seen */
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/* read type */
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switch(*format) {
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case 'p':
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case 'P': /* pointer. */
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if (sizeof(void *) == sizeof(LONGLONG)) I64_prefix = 1;
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/* fall through */
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case 'x':
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case 'X': /* hexadecimal integer. */
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base = 16;
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goto number;
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case 'o': /* octal integer */
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base = 8;
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goto number;
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case 'u': /* unsigned decimal integer */
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base = 10;
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goto number;
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case 'd': /* signed decimal integer */
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base = 10;
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goto number;
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case 'i': /* generic integer */
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base = 0;
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number: {
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/* read an integer */
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ULONGLONG cur = 0;
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int negative = 0;
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int seendigit=0;
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/* skip initial whitespace */
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while ((nch!=_EOF_) && _ISSPACE_(nch))
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nch = _GETC_(file);
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/* get sign */
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if (nch == '-' || nch == '+') {
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negative = (nch=='-');
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nch = _GETC_(file);
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if (width>0) width--;
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}
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/* look for leading indication of base */
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if (width!=0 && nch == '0' && *format != 'p' && *format != 'P') {
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nch = _GETC_(file);
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if (width>0) width--;
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seendigit=1;
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if (width!=0 && (nch=='x' || nch=='X')) {
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if (base==0)
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base=16;
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if (base==16) {
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nch = _GETC_(file);
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if (width>0) width--;
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seendigit=0;
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}
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} else if (base==0)
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base = 8;
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}
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/* format %i without indication of base */
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if (base==0)
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base = 10;
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/* throw away leading zeros */
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while (width!=0 && nch=='0') {
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nch = _GETC_(file);
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if (width>0) width--;
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seendigit=1;
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}
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if (width!=0 && _CHAR2DIGIT_(nch, base)!=-1) {
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cur = _CHAR2DIGIT_(nch, base);
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nch = _GETC_(file);
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if (width>0) width--;
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seendigit=1;
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}
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/* read until no more digits */
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while (width!=0 && (nch!=_EOF_) && _CHAR2DIGIT_(nch, base)!=-1) {
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cur = cur*base + _CHAR2DIGIT_(nch, base);
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nch = _GETC_(file);
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if (width>0) width--;
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seendigit=1;
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}
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/* okay, done! */
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if (!seendigit) break; /* not a valid number */
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st = 1;
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if (!suppress) {
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#define _SET_NUMBER_(type) *va_arg(ap, type*) = negative ? -cur : cur
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if (I64_prefix) _SET_NUMBER_(LONGLONG);
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else if (l_prefix) _SET_NUMBER_(LONG);
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else if (h_prefix == 1) _SET_NUMBER_(short int);
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#if _MSVCR_VER >= 140
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else if (h_prefix == 2) _SET_NUMBER_(char);
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#endif
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else _SET_NUMBER_(int);
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}
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}
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break;
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case 'e':
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case 'E':
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case 'f':
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case 'g':
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case 'G': { /* read a float */
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#ifdef CONSOLE
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struct _STRTOD_NAME_(strtod_scanf_ctx) ctx = {locinfo, 0, width};
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#else
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struct _STRTOD_NAME_(strtod_scanf_ctx) ctx = {locinfo, file, width};
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#endif
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int negative = 0;
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struct fpnum fp;
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double cur;
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/* skip initial whitespace */
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while ((nch!=_EOF_) && _ISSPACE_(nch))
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nch = _GETC_(file);
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if (nch == _EOF_)
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break;
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ctx.unget = nch;
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#ifdef STRING
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ctx.file = file;
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#endif
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#ifdef STRING_LEN
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if(ctx.length > length-consumed+1) ctx.length = length-consumed+1;
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#endif
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fp = fpnum_parse(_STRTOD_NAME_(strtod_scanf_get),
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_STRTOD_NAME_(strtod_scanf_unget), &ctx, locinfo, FALSE);
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fpnum_double(&fp, &cur);
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if(!rd && ctx.err) {
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_UNLOCK_FILE_(file);
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return _EOF_RET;
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}
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if(ctx.err || !ctx.read)
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break;
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consumed += ctx.read;
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#ifdef STRING
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file = ctx.file;
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#endif
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nch = ctx.cur;
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st = 1;
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if (!suppress) {
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if (L_prefix || l_prefix) _SET_NUMBER_(double);
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else _SET_NUMBER_(float);
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}
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}
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break;
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/* According to msdn,
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* 's' reads a character string in a call to fscanf
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* and 'S' a wide character string and vice versa in a
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* call to fwscanf. The 'h', 'w' and 'l' prefixes override
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* this behaviour. 'h' forces reading char * but 'l' and 'w'
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* force reading WCHAR. */
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case 's':
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if (w_prefix || l_prefix) goto widecharstring;
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else if (h_prefix) goto charstring;
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#ifdef WIDE_SCANF
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else goto widecharstring;
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#else /* WIDE_SCANF */
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else goto charstring;
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#endif /* WIDE_SCANF */
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case 'S':
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if (w_prefix || l_prefix) goto widecharstring;
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else if (h_prefix) goto charstring;
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#ifdef WIDE_SCANF
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else goto charstring;
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#else /* WIDE_SCANF */
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else goto widecharstring;
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#endif /* WIDE_SCANF */
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charstring: { /* read a word into a char */
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|
char *sptr = suppress ? NULL : va_arg(ap, char*);
|
|
char *sptr_beg = sptr;
|
|
#ifdef SECURE
|
|
unsigned size = suppress ? UINT_MAX : va_arg(ap, unsigned);
|
|
#else
|
|
unsigned size = UINT_MAX;
|
|
#endif
|
|
/* skip initial whitespace */
|
|
while ((nch!=_EOF_) && _ISSPACE_(nch))
|
|
nch = _GETC_(file);
|
|
/* read until whitespace */
|
|
while (width!=0 && (nch!=_EOF_) && !_ISSPACE_(nch)) {
|
|
if (!suppress) {
|
|
*sptr++ = _CHAR2SUPPORTED_(nch);
|
|
if(size>1) size--;
|
|
else {
|
|
_UNLOCK_FILE_(file);
|
|
*sptr_beg = 0;
|
|
return rd;
|
|
}
|
|
}
|
|
st++;
|
|
nch = _GETC_(file);
|
|
if (width>0) width--;
|
|
}
|
|
/* if we have reached the EOF and output nothing then report EOF */
|
|
if (nch==_EOF_ && rd==0 && st==0) {
|
|
_UNLOCK_FILE_(file);
|
|
return _EOF_RET;
|
|
}
|
|
/* terminate */
|
|
if (st && !suppress) *sptr = 0;
|
|
}
|
|
break;
|
|
widecharstring: { /* read a word into a wchar_t* */
|
|
wchar_t *sptr = suppress ? NULL : va_arg(ap, wchar_t*);
|
|
wchar_t *sptr_beg = sptr;
|
|
#ifdef SECURE
|
|
unsigned size = suppress ? UINT_MAX : va_arg(ap, unsigned);
|
|
#else
|
|
unsigned size = UINT_MAX;
|
|
#endif
|
|
/* skip initial whitespace */
|
|
while ((nch!=_EOF_) && _ISSPACE_(nch))
|
|
nch = _GETC_(file);
|
|
/* read until whitespace */
|
|
while (width!=0 && (nch!=_EOF_) && !_ISSPACE_(nch)) {
|
|
if (!suppress) {
|
|
*sptr++ = _WIDE2SUPPORTED_(nch);
|
|
if(size>1) size--;
|
|
else {
|
|
_UNLOCK_FILE_(file);
|
|
*sptr_beg = 0;
|
|
return rd;
|
|
}
|
|
}
|
|
st++;
|
|
nch = _GETC_(file);
|
|
if (width>0) width--;
|
|
}
|
|
#if _MSVCR_VER >= 80
|
|
/* if we have reached the EOF and output nothing then report EOF */
|
|
if (nch==_EOF_ && rd==0 && st==0) {
|
|
_UNLOCK_FILE_(file);
|
|
return _EOF_RET;
|
|
}
|
|
#endif
|
|
/* terminate */
|
|
if (st && !suppress) *sptr = 0;
|
|
}
|
|
break;
|
|
/* 'c' and 'C work analogously to 's' and 'S' as described
|
|
* above */
|
|
case 'c':
|
|
if (w_prefix || l_prefix) goto widecharacter;
|
|
else if (h_prefix) goto character;
|
|
#ifdef WIDE_SCANF
|
|
else goto widecharacter;
|
|
#else /* WIDE_SCANF */
|
|
else goto character;
|
|
#endif /* WIDE_SCANF */
|
|
case 'C':
|
|
if (w_prefix || l_prefix) goto widecharacter;
|
|
else if (h_prefix) goto character;
|
|
#ifdef WIDE_SCANF
|
|
else goto character;
|
|
#else /* WIDE_SCANF */
|
|
else goto widecharacter;
|
|
#endif /* WIDE_SCANF */
|
|
character: { /* read single character into char */
|
|
char *str = suppress ? NULL : va_arg(ap, char*);
|
|
char *pstr = str;
|
|
#ifdef SECURE
|
|
unsigned size = suppress ? UINT_MAX : va_arg(ap, unsigned);
|
|
#else
|
|
unsigned size = UINT_MAX;
|
|
#endif
|
|
if (width == -1) width = 1;
|
|
while (width && (nch != _EOF_))
|
|
{
|
|
if (!suppress) {
|
|
if(size) size--;
|
|
else {
|
|
_UNLOCK_FILE_(file);
|
|
*pstr = 0;
|
|
return rd;
|
|
}
|
|
*str++ = _CHAR2SUPPORTED_(nch);
|
|
}
|
|
st++;
|
|
width--;
|
|
nch = _GETC_(file);
|
|
}
|
|
}
|
|
break;
|
|
widecharacter: { /* read single character into a wchar_t */
|
|
wchar_t *str = suppress ? NULL : va_arg(ap, wchar_t*);
|
|
wchar_t *pstr = str;
|
|
#ifdef SECURE
|
|
unsigned size = suppress ? UINT_MAX : va_arg(ap, unsigned);
|
|
#else
|
|
unsigned size = UINT_MAX;
|
|
#endif
|
|
if (width == -1) width = 1;
|
|
while (width && (nch != _EOF_))
|
|
{
|
|
if (!suppress) {
|
|
if(size) size--;
|
|
else {
|
|
_UNLOCK_FILE_(file);
|
|
*pstr = 0;
|
|
return rd;
|
|
}
|
|
*str++ = _WIDE2SUPPORTED_(nch);
|
|
}
|
|
st++;
|
|
width--;
|
|
nch = _GETC_(file);
|
|
}
|
|
}
|
|
break;
|
|
case 'n': {
|
|
if (!suppress) {
|
|
int*n = va_arg(ap, int*);
|
|
*n = consumed - 1;
|
|
}
|
|
/* This is an odd one: according to the standard,
|
|
* "Execution of a %n directive does not increment the
|
|
* assignment count returned at the completion of
|
|
* execution" even if it wasn't suppressed with the
|
|
* '*' flag. The Corrigendum to the standard seems
|
|
* to contradict this (comment out the assignment to
|
|
* suppress below if you want to implement these
|
|
* alternate semantics) but the windows program I'm
|
|
* looking at expects the behavior I've coded here
|
|
* (which happens to be what glibc does as well).
|
|
*/
|
|
suppress = 1;
|
|
st = 1;
|
|
}
|
|
break;
|
|
case '[': {
|
|
_CHAR_ *str = suppress ? NULL : va_arg(ap, _CHAR_*);
|
|
_CHAR_ *sptr = str;
|
|
RTL_BITMAP bitMask;
|
|
ULONG *Mask;
|
|
int invert = 0; /* Set if we are NOT to find the chars */
|
|
#ifdef SECURE
|
|
unsigned size = suppress ? UINT_MAX : va_arg(ap, unsigned);
|
|
#else
|
|
unsigned size = UINT_MAX;
|
|
#endif
|
|
|
|
/* Init our bitmap */
|
|
Mask = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, _BITMAPSIZE_/8);
|
|
RtlInitializeBitMap(&bitMask, Mask, _BITMAPSIZE_);
|
|
|
|
/* Read the format */
|
|
format++;
|
|
if(*format == '^') {
|
|
invert = 1;
|
|
format++;
|
|
}
|
|
if(*format == ']') {
|
|
RtlSetBits(&bitMask, ']', 1);
|
|
format++;
|
|
}
|
|
while(*format && (*format != ']')) {
|
|
/* According to msdn:
|
|
* "Note that %[a-z] and %[z-a] are interpreted as equivalent to %[abcde...z]." */
|
|
if(format[1] == '-' && format[2] && format[2] != ']') {
|
|
if (format[0] < format[2])
|
|
RtlSetBits(&bitMask, format[0], format[2] - format[0] + 1);
|
|
else
|
|
RtlSetBits(&bitMask, format[2], format[0] - format[2] + 1);
|
|
format += 2;
|
|
} else
|
|
RtlSetBits(&bitMask, *format, 1);
|
|
format++;
|
|
}
|
|
/* read until char is not suitable */
|
|
while ((width != 0) && (nch != _EOF_)) {
|
|
if(!invert) {
|
|
if(RtlAreBitsSet(&bitMask, nch, 1)) {
|
|
if (!suppress) *sptr++ = _CHAR2SUPPORTED_(nch);
|
|
} else
|
|
break;
|
|
} else {
|
|
if(RtlAreBitsClear(&bitMask, nch, 1)) {
|
|
if (!suppress) *sptr++ = _CHAR2SUPPORTED_(nch);
|
|
} else
|
|
break;
|
|
}
|
|
st++;
|
|
nch = _GETC_(file);
|
|
if (width>0) width--;
|
|
if(size>1) size--;
|
|
else {
|
|
_UNLOCK_FILE_(file);
|
|
*str = 0;
|
|
HeapFree(GetProcessHeap(), 0, Mask);
|
|
return rd;
|
|
}
|
|
}
|
|
/* terminate */
|
|
if (!suppress) *sptr = 0;
|
|
HeapFree(GetProcessHeap(), 0, Mask);
|
|
}
|
|
break;
|
|
default:
|
|
/* From spec: "if a percent sign is followed by a character
|
|
* that has no meaning as a format-control character, that
|
|
* character and the following characters are treated as
|
|
* an ordinary sequence of characters, that is, a sequence
|
|
* of characters that must match the input. For example,
|
|
* to specify that a percent-sign character is to be input,
|
|
* use %%." */
|
|
while ((nch!=_EOF_) && _ISSPACE_(nch))
|
|
nch = _GETC_(file);
|
|
if ((_CHAR_)nch == *format) {
|
|
suppress = 1; /* whoops no field to be read */
|
|
st = 1; /* but we got what we expected */
|
|
nch = _GETC_(file);
|
|
}
|
|
break;
|
|
}
|
|
if (st && !suppress) rd++;
|
|
else if (!st) break;
|
|
}
|
|
/* a non-white-space character causes scanf to read, but not store,
|
|
* a matching non-white-space character. */
|
|
else {
|
|
/* check for character match */
|
|
if ((_CHAR_)nch == *format) {
|
|
nch = _GETC_(file);
|
|
} else break;
|
|
}
|
|
format++;
|
|
}
|
|
if (nch!=_EOF_) {
|
|
_UNGETC_(nch, file);
|
|
}
|
|
|
|
TRACE("returning %d\n", rd);
|
|
_UNLOCK_FILE_(file);
|
|
return rd;
|
|
}
|
|
|
|
#undef _CHAR_
|
|
#undef _EOF_
|
|
#undef _EOF_RET
|
|
#undef _ISSPACE_
|
|
#undef _CHAR2SUPPORTED_
|
|
#undef _WIDE2SUPPORTED_
|
|
#undef _CHAR2DIGIT_
|
|
#undef _GETC_FUNC_
|
|
#undef _STRTOD_NAME_
|
|
#undef _GETC_
|
|
#undef _UNGETC_
|
|
#undef _LOCK_FILE_
|
|
#undef _UNLOCK_FILE_
|
|
#undef _FUNCTION_
|
|
#undef _BITMAPSIZE_
|