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normalize printf/scanf format strings correctly on all platforms, while accounting for wxArgNormalizer<T> conversions

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@46618 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
2007-06-22 12:28:59 +00:00
parent e0cfa71527
commit 57c42b6227
1 changed files with 33 additions and 66 deletions
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91
include/wx/wxcrtvararg.h
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@@ -80,7 +80,7 @@
*/
#if defined(HAVE_UNIX98_PRINTF)
#ifdef HAVE_VSWPRINTF
#define wxCRT_VsnprintfW_ vswprintf
#define wxCRT_VsnprintfW vswprintf
#endif
#ifdef HAVE_BROKEN_VSNPRINTF_DECL
#define wxCRT_VsnprintfA wx_fixed_vsnprintf
@@ -96,7 +96,7 @@
*/
#if defined _MSC_FULL_VER && _MSC_FULL_VER >= 140050727 && !defined __WXWINCE__
#define wxCRT_VsnprintfA _vsprintf_p
#define wxCRT_VsnprintfW_ _vswprintf_p
#define wxCRT_VsnprintfW _vswprintf_p
#endif
#endif /* HAVE_UNIX98_PRINTF/!HAVE_UNIX98_PRINTF */
#else /* !wxUSE_PRINTF_POS_PARAMS */
@@ -113,14 +113,14 @@
#if defined(__VISUALC__) || \
(defined(__BORLANDC__) && __BORLANDC__ >= 0x540)
#define wxCRT_VsnprintfA _vsnprintf
#define wxCRT_VsnprintfW_ _vsnwprintf
#define wxCRT_VsnprintfW _vsnwprintf
#else
#if defined(HAVE__VSNWPRINTF)
#define wxCRT_VsnprintfW_ _vsnwprintf
#define wxCRT_VsnprintfW _vsnwprintf
#elif defined(HAVE_VSWPRINTF)
#define wxCRT_VsnprintfW_ vswprintf
#define wxCRT_VsnprintfW vswprintf
#elif defined(__WATCOMC__)
#define wxCRT_VsnprintfW_ _vsnwprintf
#define wxCRT_VsnprintfW _vsnwprintf
#endif
/*
@@ -138,10 +138,10 @@
#endif
#endif /* wxUSE_PRINTF_POS_PARAMS/!wxUSE_PRINTF_POS_PARAMS */
#ifndef wxCRT_VsnprintfW_
#ifndef wxCRT_VsnprintfW
/* no (suitable) vsnprintf(), cook our own */
WXDLLIMPEXP_BASE int
wxCRT_VsnprintfW_(wchar_t *buf, size_t len, const wchar_t *format, va_list argptr);
wxCRT_VsnprintfW(wchar_t *buf, size_t len, const wchar_t *format, va_list argptr);
#define wxUSE_WXVSNPRINTFW 1
#else
#define wxUSE_WXVSNPRINTFW 0
@@ -175,34 +175,15 @@
#define wxCRT_VprintfA vprintf
#define wxCRT_VsprintfA vsprintf
/*
More Unicode complications: although both ANSI C and C++ define a number of
wide character functions such as wprintf(), not all environments have them.
Worse, those which do have different behaviours: under Windows, %s format
specifier changes its meaning in Unicode build and expects a Unicode string
while under Unix/POSIX it still means an ASCII string even for wprintf() and
%ls has to be used for wide strings.
We choose to always emulate Windows behaviour as more useful for us so even
if we have wprintf() we still must wrap it in a non trivial wxPrintf().
*/
#ifndef __WINDOWS__
#define wxNEED_PRINTF_CONVERSION
#endif
// FIXME-UTF8: format conversion should be moved outside of wxCRT_* and to the
// vararg templates; after then, wxNEED_PRINTF_CONVERSION should
// be removed and this code simplified
#ifndef wxNEED_PRINTF_CONVERSION
#ifdef wxHAVE_TCHAR_SUPPORT
#define wxCRT_FprintfW fwprintf
#define wxCRT_PrintfW wprintf
#define wxCRT_VfprintfW vfwprintf
#define wxCRT_VprintfW vwprintf
#if defined(__WINDOWS__) && !HAVE_VSWPRINTF
// only non-standard vswprintf() without buffer size argument can be used here
#define wxCRT_VsprintfW vswprintf
#endif
#endif // !defined(wxNEED_PRINTF_CONVERSION)
/*
In Unicode mode we need to have all standard functions such as wprintf() and
@@ -214,7 +195,7 @@
#endif
#if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
#if defined(wxNEED_WPRINTF)
/*
we need to implement all wide character printf functions either because
we don't have them at all or because they don't have the semantics we
@@ -225,19 +206,7 @@
int wxCRT_VfprintfW( FILE *stream, const wchar_t *format, va_list ap );
int wxCRT_VprintfW( const wchar_t *format, va_list ap );
int wxCRT_VsprintfW( wchar_t *str, const wchar_t *format, va_list ap );
#endif /* wxNEED_PRINTF_CONVERSION */
/* these 2 can be simply mapped to the versions with underscore at the end */
/* if we don't have to do the conversion */
/*
However, if we don't have any vswprintf() at all we don't need to redefine
anything as our own wxCRT_VsnprintfW_() already behaves as needed.
*/
#if defined(wxNEED_PRINTF_CONVERSION) && defined(wxCRT_VsnprintfW_)
int wxCRT_VsnprintfW( wchar_t *str, size_t size, const wchar_t *format, va_list ap );
#else
#define wxCRT_VsnprintfW wxCRT_VsnprintfW_
#endif
#endif /* wxNEED_WPRINTF */
/* Required for wxScanf() etc. */
@@ -246,7 +215,7 @@
#define wxCRT_FscanfA fscanf
#define wxCRT_VsscanfA vsscanf
#if defined(wxNEED_PRINTF_CONVERSION) || defined(wxNEED_WPRINTF)
#if defined(wxNEED_WPRINTF)
int wxCRT_ScanfW(const wchar_t *format, ...);
int wxCRT_SscanfW(const wchar_t *str, const wchar_t *format, ...);
int wxCRT_FscanfW(FILE *stream, const wchar_t *format, ...);
@@ -270,17 +239,6 @@
#define wxSnprintf wxSnprintf_Impl
#endif
// FIXME-UTF8: explicit wide-string and short-string format specifiers
// (%hs, %ls and variants) are currently broken, only %s works
// as expected (regardless of the build)
// FIXME-UTF8: %c (and %hc, %lc) don't work as expected either: in UTF-8 build,
// we should replace them with %s (as some Unicode chars may be
// encoded with >1 bytes) and in all builds, we should use wchar_t
// for all characters and convert char to it;
// we'll also need wxArgNormalizer<T> specializations for char,
// wchar_t, wxUniChar and wxUniCharRef to handle this correctly
// FIXME-UTF8: remove this
#if wxUSE_UNICODE
#define wxCRT_PrintfNative wxCRT_PrintfW
@@ -443,32 +401,41 @@ wxVsnprintf(wchar_t *str, size_t size, const wxString& format, va_list argptr);
_WX_DEFINE_SCANFUNC, \
dummy1, name, impl, passfixed, numfixed, fixed)
// this is needed to normalize the format string, see src/common/strvararg.cpp
// for more details
#ifdef __WINDOWS__
#define wxScanfConvertFormatW(fmt) fmt
#else
const wxWCharBuffer
WXDLLIMPEXP_BASE wxScanfConvertFormatW(const wchar_t *format);
#endif
WX_DEFINE_SCANFUNC(wxScanf, 1, (const char *format),
wxCRT_ScanfA, (format))
WX_DEFINE_SCANFUNC(wxScanf, 1, (const wchar_t *format),
wxCRT_ScanfW, (format))
wxCRT_ScanfW, (wxScanfConvertFormatW(format)))
WX_DEFINE_SCANFUNC(wxFscanf, 2, (FILE *stream, const char *format),
wxCRT_FscanfA, (stream, format))
WX_DEFINE_SCANFUNC(wxFscanf, 2, (FILE *stream, const wchar_t *format),
wxCRT_FscanfW, (stream, format))
wxCRT_FscanfW, (stream, wxScanfConvertFormatW(format)))
WX_DEFINE_SCANFUNC(wxSscanf, 2, (const char *str, const char *format),
wxCRT_SscanfA, (str, format))
WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wchar_t *str, const wchar_t *format),
wxCRT_SscanfW, (str, format))
wxCRT_SscanfW, (str, wxScanfConvertFormatW(format)))
WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxCharBuffer& str, const char *format),
wxCRT_SscanfA, (str.data(), format))
WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxWCharBuffer& str, const wchar_t *format),
wxCRT_SscanfW, (str.data(), format))
wxCRT_SscanfW, (str.data(), wxScanfConvertFormatW(format)))
WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxString& str, const char *format),
wxCRT_SscanfA, (str.mb_str(), format))
WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxString& str, const wchar_t *format),
wxCRT_SscanfW, (str.wc_str(), format))
wxCRT_SscanfW, (str.wc_str(), wxScanfConvertFormatW(format)))
WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxCStrData& str, const char *format),
wxCRT_SscanfA, (str.AsCharBuf(), format))
WX_DEFINE_SCANFUNC(wxSscanf, 2, (const wxCStrData& str, const wchar_t *format),
wxCRT_SscanfW, (str.AsWCharBuf(), format))
wxCRT_SscanfW, (str.AsWCharBuf(), wxScanfConvertFormatW(format)))
// Visual C++ doesn't provide vsscanf()
#ifndef __VISUALC___