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      1 /*
      2 ******************************************************************************
      3 *
      4 *   Copyright (C) 1998-2004, International Business Machines
      5 *   Corporation and others.  All Rights Reserved.
      6 *
      7 ******************************************************************************
      8 *
      9 * File uscanf.c
     10 *
     11 * Modification History:
     12 *
     13 *   Date        Name        Description
     14 *   12/02/98    stephen        Creation.
     15 *   03/13/99    stephen     Modified for new C API.
     16 ******************************************************************************
     17 */
     18 
     19 #include "unicode/utypes.h"
     20 
     21 #if !UCONFIG_NO_FORMATTING
     22 
     23 #include "unicode/putil.h"
     24 #include "unicode/ustdio.h"
     25 #include "unicode/ustring.h"
     26 #include "uscanf.h"
     27 #include "ufile.h"
     28 #include "ufmt_cmn.h"
     29 
     30 #include "cmemory.h"
     31 #include "cstring.h"
     32 
     33 
     34 U_CAPI int32_t U_EXPORT2
     35 u_fscanf(UFILE        *f,
     36          const char    *patternSpecification,
     37          ... )
     38 {
     39     va_list ap;
     40     int32_t converted;
     41 
     42     va_start(ap, patternSpecification);
     43     converted = u_vfscanf(f, patternSpecification, ap);
     44     va_end(ap);
     45 
     46     return converted;
     47 }
     48 
     49 U_CAPI int32_t U_EXPORT2
     50 u_fscanf_u(UFILE        *f,
     51            const UChar    *patternSpecification,
     52            ... )
     53 {
     54     va_list ap;
     55     int32_t converted;
     56 
     57     va_start(ap, patternSpecification);
     58     converted = u_vfscanf_u(f, patternSpecification, ap);
     59     va_end(ap);
     60 
     61     return converted;
     62 }
     63 
     64 U_CAPI int32_t  U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
     65 u_vfscanf(UFILE        *f,
     66           const char    *patternSpecification,
     67           va_list        ap)
     68 {
     69     int32_t converted;
     70     UChar *pattern;
     71     UChar patBuffer[UFMT_DEFAULT_BUFFER_SIZE];
     72     int32_t size = (int32_t)uprv_strlen(patternSpecification) + 1;
     73 
     74     /* convert from the default codepage to Unicode */
     75     if (size >= MAX_UCHAR_BUFFER_SIZE(patBuffer)) {
     76         pattern = (UChar *)uprv_malloc(size * sizeof(UChar));
     77         if(pattern == 0) {
     78             return 0;
     79         }
     80     }
     81     else {
     82         pattern = patBuffer;
     83     }
     84     u_charsToUChars(patternSpecification, pattern, size);
     85 
     86     /* do the work */
     87     converted = u_vfscanf_u(f, pattern, ap);
     88 
     89     /* clean up */
     90     if (pattern != patBuffer) {
     91         uprv_free(pattern);
     92     }
     93 
     94     return converted;
     95 }
     96 
     97 U_CAPI int32_t  U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
     98 u_vfscanf_u(UFILE       *f,
     99             const UChar *patternSpecification,
    100             va_list     ap)
    101 {
    102     return u_scanf_parse(f, patternSpecification, ap);
    103 }
    104 
    105 #endif /* #if !UCONFIG_NO_FORMATTING */
    106 
    107