gecko-dev/intl/icu/source/io/uscanf.cpp

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2.6 KiB
C++

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
*
* Copyright (C) 1998-2014, International Business Machines
* Corporation and others. All Rights Reserved.
*
******************************************************************************
*
* File uscanf.c
*
* Modification History:
*
* Date Name Description
* 12/02/98 stephen Creation.
* 03/13/99 stephen Modified for new C API.
******************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING && !UCONFIG_NO_CONVERSION
#include "unicode/putil.h"
#include "unicode/ustdio.h"
#include "unicode/ustring.h"
#include "uscanf.h"
#include "ufile.h"
#include "ufmt_cmn.h"
#include "cmemory.h"
#include "cstring.h"
U_CAPI int32_t U_EXPORT2
u_fscanf(UFILE *f,
const char *patternSpecification,
... )
{
va_list ap;
int32_t converted;
va_start(ap, patternSpecification);
converted = u_vfscanf(f, patternSpecification, ap);
va_end(ap);
return converted;
}
U_CAPI int32_t U_EXPORT2
u_fscanf_u(UFILE *f,
const UChar *patternSpecification,
... )
{
va_list ap;
int32_t converted;
va_start(ap, patternSpecification);
converted = u_vfscanf_u(f, patternSpecification, ap);
va_end(ap);
return converted;
}
U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
u_vfscanf(UFILE *f,
const char *patternSpecification,
va_list ap)
{
int32_t converted;
UChar *pattern;
UChar patBuffer[UFMT_DEFAULT_BUFFER_SIZE];
int32_t size = (int32_t)uprv_strlen(patternSpecification) + 1;
/* convert from the default codepage to Unicode */
if (size >= MAX_UCHAR_BUFFER_SIZE(patBuffer)) {
pattern = (UChar *)uprv_malloc(size * sizeof(UChar));
if(pattern == 0) {
return 0;
}
}
else {
pattern = patBuffer;
}
u_charsToUChars(patternSpecification, pattern, size);
/* do the work */
converted = u_vfscanf_u(f, pattern, ap);
/* clean up */
if (pattern != patBuffer) {
uprv_free(pattern);
}
return converted;
}
U_CAPI int32_t U_EXPORT2 /* U_CAPI ... U_EXPORT2 added by Peter Kirk 17 Nov 2001 */
u_vfscanf_u(UFILE *f,
const UChar *patternSpecification,
va_list ap)
{
return u_scanf_parse(f, patternSpecification, ap);
}
#endif /* #if !UCONFIG_NO_FORMATTING */