Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

merging r60108, r60116, r60120, r60121, r60125 and r60126

Browse Source 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_9_0_BRANCH@60194 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Csomor
2009-04-16 07:11:57 +00:00
parent e6aca43e3d
commit 97badc2a86
6 changed files with 402 additions and 270 deletions
Download Patch File Download Diff File Expand all files Collapse all files

167
include/wx/private/wxprintf.h
View File

@@ -56,7 +56,8 @@ using namespace std ;
// the conversion specifiers accepted by wxCRT_VsnprintfW
enum wxPrintfArgType {
enum wxPrintfArgType
{
wxPAT_INVALID = -1,
wxPAT_INT, // %d, %i, %o, %u, %x, %X
@@ -79,11 +80,14 @@ enum wxPrintfArgType {
wxPAT_NINT, // %n
wxPAT_NSHORTINT, // %hn
wxPAT_NLONGINT // %ln
wxPAT_NLONGINT, // %ln
wxPAT_STAR // '*' used for width or precision
};
// an argument passed to wxCRT_VsnprintfW
typedef union {
union wxPrintfArg
{
int pad_int; // %d, %i, %o, %u, %x, %X
long int pad_longint; // %ld, etc
#ifdef wxLongLong_t
@@ -104,9 +108,9 @@ typedef union {
int *pad_nint; // %n
short int *pad_nshortint; // %hn
long int *pad_nlongint; // %ln
} wxPrintfArg;
};
// helper for converting string into either char* or wchar_t* dependening
// helper for converting string into either char* or wchar_t* depending
// on the type of wxPrintfConvSpec<T> instantiation:
template<typename CharType> struct wxPrintfStringHelper {};
@@ -159,10 +163,6 @@ public:
// a little buffer where formatting flags like #+\.hlqLZ are stored by Parse()
// for use in Process()
// NB: even if this buffer is used only for numeric conversion specifiers
// and thus could be safely declared as a char[] buffer, we want it to
// be wchar_t so that in Unicode builds we can avoid to convert its
// contents to Unicode chars when copying it in user's buffer.
char m_szFlags[wxMAX_SVNPRINTF_FLAGBUFFER_LEN];
@@ -609,6 +609,10 @@ bool wxPrintfConvSpec<CharType>::LoadArg(wxPrintfArg *p, va_list &argptr)
p->pad_nlongint = va_arg(argptr, long int *);
break;
case wxPAT_STAR:
// this will be handled as part of the next argument
return true;
case wxPAT_INVALID:
default:
return false;
@@ -788,72 +792,133 @@ int wxPrintfConvSpec<CharType>::Process(CharType *buf, size_t lenMax, wxPrintfAr
template<typename CharType>
struct wxPrintfConvSpecParser
{
wxPrintfConvSpecParser(const CharType *format)
: posarg_present(false), nonposarg_present(false),
nargs(0)
typedef wxPrintfConvSpec<CharType> ConvSpec;
wxPrintfConvSpecParser(const CharType *fmt)
{
nargs = 0;
posarg_present =
nonposarg_present = false;
memset(pspec, 0, sizeof(pspec));
const CharType *toparse = format;
// parse the format string
for (; *toparse != wxT('\0'); toparse++)
for ( const CharType *toparse = fmt; *toparse != wxT('\0'); toparse++ )
{
if (*toparse == wxT('%') )
{
arg[nargs].Init();
// skip everything except format specifications
if ( *toparse != '%' )
continue;
// let's see if this is a (valid) conversion specifier...
if (arg[nargs].Parse(toparse))
// also skip escaped percent signs
if ( toparse[1] == '%' )
{
// ...yes it is
wxPrintfConvSpec<CharType> *current = &arg[nargs];
toparse++;
continue;
}
// make toparse point to the end of this specifier
toparse = current->m_pArgEnd;
ConvSpec *spec = &specs[nargs];
spec->Init();
if (current->m_pos > 0)
// attempt to parse this format specification
if ( !spec->Parse(toparse) )
continue;
// advance to the end of this specifier
toparse = spec->m_pArgEnd;
// special handling for specifications including asterisks: we need
// to reserve an extra slot (or two if asterisks were used for both
// width and precision) in specs array in this case
for ( const char *f = strchr(spec->m_szFlags, '*');
f;
f = strchr(f + 1, '*') )
{
// the positionals start from number 1... adjust the index
current->m_pos--;
if ( nargs++ == wxMAX_SVNPRINTF_ARGUMENTS )
break;
// TODO: we need to support specifiers of the form "%2$*1$s"
// (this is the same as "%*s") as if any positional arguments
// are used all asterisks must be positional as well but this
// requires a lot of changes in this code (basically we'd need
// to rewrite Parse() to return "*" and conversion itself as
// separate entries)
if ( posarg_present )
{
wxFAIL_MSG
(
wxString::Format
(
"Format string \"%s\" uses both positional "
"parameters and '*' but this is not currently "
"supported by this implementation, sorry.",
fmt
)
);
}
specs[nargs] = *spec;
// make an entry for '*' and point to it from pspec
spec->Init();
spec->m_type = wxPAT_STAR;
pspec[nargs - 1] = spec;
spec = &specs[nargs];
}
// check if this is a positional or normal argument
if ( spec->m_pos > 0 )
{
// the positional arguments start from number 1 so we need
// to adjust the index
spec->m_pos--;
posarg_present = true;
}
else
else // not a positional argument...
{
// not a positional argument...
current->m_pos = nargs;
spec->m_pos = nargs;
nonposarg_present = true;
}
// this conversion specifier is tied to the pos-th argument...
pspec[current->m_pos] = current;
nargs++;
pspec[spec->m_pos] = spec;
if ( nargs++ == wxMAX_SVNPRINTF_ARGUMENTS )
break;
}
// warn if we lost any arguments (the program probably will crash
// anyhow because of stack corruption...)
if ( nargs == wxMAX_SVNPRINTF_ARGUMENTS )
{
wxLogDebug(wxT("A single call to wxVsnprintf() has more than %d arguments; ")
wxT("ignoring all remaining arguments."), wxMAX_SVNPRINTF_ARGUMENTS);
break; // cannot handle any additional conv spec
}
}
else
{
// it's safe to look in the next character of toparse as at
// worst we'll hit its \0
if (*(toparse+1) == wxT('%'))
{
// the Parse() returned false because we've found a %%
toparse++;
}
}
}
wxFAIL_MSG
(
wxString::Format
(
"wxVsnprintf() currently supports only %d arguments, "
"but format string \"%s\" defines more of them.\n"
"You need to change wxMAX_SVNPRINTF_ARGUMENTS and "
"recompile if more are really needed.",
fmt, wxMAX_SVNPRINTF_ARGUMENTS
)
);
}
}
wxPrintfConvSpec<CharType> arg[wxMAX_SVNPRINTF_ARGUMENTS];
wxPrintfConvSpec<CharType> *pspec[wxMAX_SVNPRINTF_ARGUMENTS];
bool posarg_present, nonposarg_present;
// total number of valid elements in specs
unsigned nargs;
// all format specifications in this format string in order of their
// appearance (which may be different from arguments order)
ConvSpec specs[wxMAX_SVNPRINTF_ARGUMENTS];
// pointer to specs array element for the N-th argument
ConvSpec *pspec[wxMAX_SVNPRINTF_ARGUMENTS];
// true if any positional/non-positional parameters are used
bool posarg_present,
nonposarg_present;
};
#undef APPEND_CH

225
include/wx/string.h
View File

@@ -246,8 +246,15 @@ public:
operator const void*() const { return AsChar(); }
// returns buffers that are valid as long as the associated wxString exists
inline const wxScopedCharBuffer AsCharBuf() const;
inline const wxScopedWCharBuffer AsWCharBuf() const;
const wxScopedCharBuffer AsCharBuf() const
{
return wxScopedCharBuffer::CreateNonOwned(AsChar());
}
const wxScopedWCharBuffer AsWCharBuf() const
{
return wxScopedWCharBuffer::CreateNonOwned(AsWChar());
}
inline wxString AsString() const;
@@ -1711,9 +1718,7 @@ public:
}
const wxScopedCharBuffer utf8_str() const
{ return wxCharBuffer::CreateNonOwned(wx_str()); }
const wxScopedCharBuffer ToUTF8() const
{ return wxCharBuffer::CreateNonOwned(wx_str()); }
{ return wxCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length()); }
// this function exists in UTF-8 build only and returns the length of the
// internal UTF-8 representation
@@ -1729,7 +1734,6 @@ public:
return s;
}
const wxScopedCharBuffer utf8_str() const { return mb_str(wxMBConvUTF8()); }
const wxScopedCharBuffer ToUTF8() const { return utf8_str(); }
#else // ANSI
static wxString FromUTF8(const char *utf8)
{ return wxString(wxMBConvUTF8().cMB2WC(utf8)); }
@@ -1758,9 +1762,10 @@ public:
}
const wxScopedCharBuffer utf8_str() const
{ return wxMBConvUTF8().cWC2MB(wc_str()); }
const wxScopedCharBuffer ToUTF8() const { return utf8_str(); }
#endif
const wxScopedCharBuffer ToUTF8() const { return utf8_str(); }
// functions for storing binary data in wxString:
#if wxUSE_UNICODE
static wxString From8BitData(const char *data, size_t len)
@@ -1788,21 +1793,34 @@ public:
// accepting the file names. The return value is always the same, but the
// type differs because a function may either return pointer to the buffer
// directly or have to use intermediate buffer for translation.
#if wxUSE_UNICODE
// this is an optimization: even though using mb_str(wxConvLibc) does the
// same thing (i.e. returns pointer to internal representation as locale is
// always an UTF-8 one) in wxUSE_UTF8_LOCALE_ONLY case, we can avoid the
// extra checks and the temporary buffer construction by providing a
// separate mb_str() overload
#if wxUSE_UTF8_LOCALE_ONLY
const char* mb_str() const { return wx_str(); }
const wxScopedCharBuffer mb_str(const wxMBConv& conv) const;
#else
const wxScopedCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const;
#endif
const wxScopedCharBuffer mb_str(const wxMBConv& conv) const
{
return AsCharBuf(conv);
}
#else // !wxUSE_UTF8_LOCALE_ONLY
const wxScopedCharBuffer mb_str(const wxMBConv& conv = wxConvLibc) const
{
return AsCharBuf(conv);
}
#endif // wxUSE_UTF8_LOCALE_ONLY/!wxUSE_UTF8_LOCALE_ONLY
const wxWX2MBbuf mbc_str() const { return mb_str(*wxConvCurrent); }
#if wxUSE_UNICODE_WCHAR
const wchar_t* wc_str() const { return wx_str(); }
#elif wxUSE_UNICODE_UTF8
const wxScopedWCharBuffer wc_str() const;
const wxScopedWCharBuffer wc_str() const
{ return AsWCharBuf(wxMBConvStrictUTF8()); }
#endif
// for compatibility with !wxUSE_UNICODE version
const wxWX2WCbuf wc_str(const wxMBConv& WXUNUSED(conv)) const
@@ -1815,16 +1833,16 @@ public:
#endif // wxMBFILES/!wxMBFILES
#else // ANSI
const wxChar* mb_str() const { return wx_str(); }
const char* mb_str() const { return wx_str(); }
// for compatibility with wxUSE_UNICODE version
const char* mb_str(const wxMBConv& WXUNUSED(conv)) const { return wx_str(); }
const wxWX2MBbuf mbc_str() const { return mb_str(); }
#if wxUSE_WCHAR_T
const wxScopedWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const;
#endif // wxUSE_WCHAR_T
const wxScopedWCharBuffer wc_str(const wxMBConv& conv = wxConvLibc) const
{ return AsWCharBuf(conv); }
const wxScopedCharBuffer fn_str() const
{ return wxConvFile.cWC2WX( wc_str( wxConvLibc ) ); }
#endif // Unicode/ANSI
@@ -3423,36 +3441,117 @@ private:
wxStringImpl m_impl;
// buffers for compatibility conversion from (char*)c_str() and
// (wchar_t*)c_str():
// FIXME-UTF8: bechmark various approaches to keeping compatibility buffers
// (wchar_t*)c_str(): the pointers returned by these functions should remain
// valid until the string itself is modified for compatibility with the
// existing code and consistency with std::string::c_str() so returning a
// temporary buffer won't do and we need to cache the conversion results
// TODO-UTF8: benchmark various approaches to keeping compatibility buffers
template<typename T>
struct ConvertedBuffer
{
ConvertedBuffer() : m_buf(NULL) {}
// notice that there is no need to initialize m_len here as it's unused
// as long as m_str is NULL
ConvertedBuffer() : m_str(NULL) {}
~ConvertedBuffer()
{ free(m_buf); }
{ free(m_str); }
operator T*() const { return m_buf; }
ConvertedBuffer& operator=(T *str)
bool Extend(size_t len)
{
free(m_buf);
m_buf = str;
return *this;
// add extra 1 for the trailing NUL
void * const str = realloc(m_str, sizeof(T)*(len + 1));
if ( !str )
return false;
m_str = static_cast<T *>(str);
m_len = len;
return true;
}
T *m_buf;
const wxScopedCharTypeBuffer<T> AsScopedBuffer() const
{
return wxScopedCharTypeBuffer<T>::CreateNonOwned(m_str, m_len);
}
T *m_str; // pointer to the string data
size_t m_len; // length, not size, i.e. in chars and without last NUL
};
#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE
// common mb_str() and wxCStrData::AsChar() helper: performs the conversion
// and returns either m_convertedToChar.m_str (in which case its m_len is
// also updated) or NULL if it failed
//
// there is an important exception: in wxUSE_UNICODE_UTF8 build if conv is a
// UTF-8 one, we return m_impl.c_str() directly, without doing any conversion
// as optimization and so the caller needs to check for this before using
// m_convertedToChar
//
// NB: AsChar() returns char* in any build, unlike mb_str()
const char *AsChar(const wxMBConv& conv) const;
// mb_str() implementation helper
wxScopedCharBuffer AsCharBuf(const wxMBConv& conv) const
{
#if wxUSE_UNICODE_UTF8
// avoid conversion if we can
if ( conv.IsUTF8() )
{
return wxScopedCharBuffer::CreateNonOwned(m_impl.c_str(),
m_impl.length());
}
#endif // wxUSE_UNICODE_UTF8
// call this solely in order to fill in m_convertedToChar as AsChar()
// updates it as a side effect: this is a bit ugly but it's a completely
// internal function so the users of this class shouldn't care or know
// about it and doing it like this, i.e. having a separate AsChar(),
// allows us to avoid the creation and destruction of a temporary buffer
// when using wxCStrData without duplicating any code
if ( !AsChar(conv) )
{
// although it would be probably more correct to return NULL buffer
// from here if the conversion fails, a lot of existing code doesn't
// expect mb_str() (or wc_str()) to ever return NULL so return an
// empty string otherwise to avoid crashes in it
//
// also, some existing code does check for the conversion success and
// so asserting here would be bad too -- even if it does mean that
// silently losing data is possible for badly written code
return wxScopedCharBuffer::CreateNonOwned("", 0);
}
return m_convertedToChar.AsScopedBuffer();
}
ConvertedBuffer<char> m_convertedToChar;
#endif
#endif // !wxUSE_UNICODE
#if !wxUSE_UNICODE_WCHAR
// common wc_str() and wxCStrData::AsWChar() helper for both UTF-8 and ANSI
// builds: converts the string contents into m_convertedToWChar and returns
// NULL if the conversion failed (this can only happen in ANSI build)
//
// NB: AsWChar() returns wchar_t* in any build, unlike wc_str()
const wchar_t *AsWChar(const wxMBConv& conv) const;
// wc_str() implementation helper
wxScopedWCharBuffer AsWCharBuf(const wxMBConv& conv) const
{
if ( !AsWChar(conv) )
return wxScopedWCharBuffer::CreateNonOwned(L"", 0);
return m_convertedToWChar.AsScopedBuffer();
}
ConvertedBuffer<wchar_t> m_convertedToWChar;
#endif
#endif // !wxUSE_UNICODE_WCHAR
#if wxUSE_UNICODE_UTF8
// FIXME-UTF8: (try to) move this elsewhere (TLS) or solve differently
// assigning to character pointer to by wxString::interator may
// assigning to character pointer to by wxString::iterator may
// change the underlying wxStringImpl iterator, so we have to
// keep track of all iterators and update them as necessary:
struct wxStringIteratorNodeHead
@@ -3996,45 +4095,53 @@ inline wxCStrData::~wxCStrData()
delete const_cast<wxString*>(m_str); // cast to silence warnings
}
// simple cases for AsChar() and AsWChar(), the complicated ones are
// in string.cpp
#if wxUSE_UNICODE_WCHAR
// AsChar() and AsWChar() implementations simply forward to wxString methods
inline const wchar_t* wxCStrData::AsWChar() const
{
return m_str->wx_str() + m_offset;
}
#endif // wxUSE_UNICODE_WCHAR
const wchar_t * const p =
#if wxUSE_UNICODE_WCHAR
m_str->wc_str();
#elif wxUSE_UNICODE_UTF8
m_str->AsWChar(wxMBConvStrictUTF8());
#else
m_str->AsWChar(wxConvLibc);
#endif
// in Unicode build the string always has a valid Unicode representation
// and even if a conversion is needed (as in UTF8 case) it can't fail
//
// but in ANSI build the string contents might be not convertible to
// Unicode using the current locale encoding so we do need to check for
// errors
#if !wxUSE_UNICODE
inline const char* wxCStrData::AsChar() const
if ( !p )
{
return m_str->wx_str() + m_offset;
// if conversion fails, return empty string and not NULL to avoid
// crashes in code written with either wxWidgets 2 wxString or
// std::string behaviour in mind: neither of them ever returns NULL
// from its c_str() and so we shouldn't neither
//
// notice that the same is done in AsChar() below and
// wxString::wc_str() and mb_str() for the same reasons
return L"";
}
#endif // !wxUSE_UNICODE
#if wxUSE_UTF8_LOCALE_ONLY
return p + m_offset;
}
inline const char* wxCStrData::AsChar() const
{
return wxStringOperations::AddToIter(m_str->wx_str(), m_offset);
}
#endif // wxUSE_UTF8_LOCALE_ONLY
#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
const char * const p = m_str->AsChar(wxConvLibc);
if ( !p )
return "";
#else // !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY
const char * const p = m_str->mb_str();
#endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
inline const wxScopedCharBuffer wxCStrData::AsCharBuf() const
{
#if !wxUSE_UNICODE || wxUSE_UTF8_LOCALE_ONLY
return wxScopedCharBuffer::CreateNonOwned(AsChar());
#else
return AsString().mb_str();
#endif
}
inline const wxScopedWCharBuffer wxCStrData::AsWCharBuf() const
{
#if wxUSE_UNICODE_WCHAR
return wxScopedWCharBuffer::CreateNonOwned(AsWChar());
#else
return AsString().wc_str();
#endif
return p + m_offset;
}
inline wxString wxCStrData::AsString() const

205
src/common/string.cpp
View File

@@ -366,95 +366,6 @@ wxString::~wxString()
}
#endif
#if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
const char* wxCStrData::AsChar() const
{
#if wxUSE_UNICODE_UTF8
if ( wxLocaleIsUtf8 )
return AsInternal();
#endif
// under non-UTF8 locales, we have to convert the internal UTF-8
// representation using wxConvLibc and cache the result
wxString *str = wxConstCast(m_str, wxString);
// convert the string:
//
// FIXME-UTF8: we'd like to do the conversion in the existing buffer (if we
// have it) but it's unfortunately not obvious to implement
// because we don't know how big buffer do we need for the
// given string length (in case of multibyte encodings, e.g.
// ISO-2022-JP or UTF-8 when internal representation is wchar_t)
//
// One idea would be to store more than just m_convertedToChar
// in wxString: then we could record the length of the string
// which was converted the last time and try to reuse the same
// buffer if the current length is not greater than it (this
// could still fail because string could have been modified in
// place but it would work most of the time, so we'd do it and
// only allocate the new buffer if in-place conversion returned
// an error). We could also store a bit saying if the string
// was modified since the last conversion (and update it in all
// operation modifying the string, of course) to avoid unneeded
// consequential conversions. But both of these ideas require
// adding more fields to wxString and require profiling results
// to be sure that we really gain enough from them to justify
// doing it.
wxScopedCharBuffer buf(str->mb_str());
// if it failed, return empty string and not NULL to avoid crashes in code
// written with either wxWidgets 2 wxString or std::string behaviour in
// mind: neither of them ever returns NULL and so we shouldn't neither
if ( !buf )
return "";
if ( str->m_convertedToChar &&
strlen(buf) == strlen(str->m_convertedToChar) )
{
// keep the same buffer for as long as possible, so that several calls
// to c_str() in a row still work:
strcpy(str->m_convertedToChar, buf);
}
else
{
str->m_convertedToChar = buf.release();
}
// and keep it:
return str->m_convertedToChar + m_offset;
}
#endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
#if !wxUSE_UNICODE_WCHAR
const wchar_t* wxCStrData::AsWChar() const
{
wxString *str = wxConstCast(m_str, wxString);
// convert the string:
wxScopedWCharBuffer buf(str->wc_str());
// notice that here, unlike above in AsChar(), conversion can't fail as our
// internal UTF-8 is always well-formed -- or the string was corrupted and
// all bets are off anyhow
// FIXME-UTF8: do the conversion in-place in the existing buffer
if ( str->m_convertedToWChar &&
wxWcslen(buf) == wxWcslen(str->m_convertedToWChar) )
{
// keep the same buffer for as long as possible, so that several calls
// to c_str() in a row still work:
memcpy(str->m_convertedToWChar, buf, sizeof(wchar_t) * wxWcslen(buf));
}
else
{
str->m_convertedToWChar = buf.release();
}
// and keep it:
return str->m_convertedToWChar + m_offset;
}
#endif // !wxUSE_UNICODE_WCHAR
// ===========================================================================
// wxString class core
// ===========================================================================
@@ -549,61 +460,97 @@ wxString::SubstrBufFromWC wxString::ConvertStr(const wchar_t *pwz, size_t nLengt
}
#endif // wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE
// This std::string::c_str()-like method returns a wide char pointer to string
// contents. In wxUSE_UNICODE_WCHAR case it is trivial as it can simply return
// a pointer to the internal representation. Otherwise a conversion is required
// and it returns a temporary buffer.
//
// However for compatibility with c_str() and to avoid breaking existing code
// doing
//
// for ( const wchar_t *p = s.wc_str(); *p; p++ )
// ... use *p...
//
// we actually need to ensure that the returned buffer is _not_ temporary and
// so we use wxString::m_convertedToWChar to store the returned data
#if !wxUSE_UNICODE_WCHAR
#if wxUSE_UNICODE_WCHAR
//Convert wxString in Unicode mode to a multi-byte string
const wxScopedCharBuffer wxString::mb_str(const wxMBConv& conv) const
const wchar_t *wxString::AsWChar(const wxMBConv& conv) const
{
// NB: Length passed to cWC2MB() doesn't include terminating NUL, it's
// added by it automatically. If we passed length()+1 here, it would
// create a buffer with 2 trailing NULs of length one greater than
// expected.
return conv.cWC2MB(wx_str(), length(), NULL);
const char * const strMB = m_impl.c_str();
const size_t lenMB = m_impl.length();
// find out the size of the buffer needed
const size_t lenWC = conv.ToWChar(NULL, 0, strMB, lenMB);
if ( lenWC == wxCONV_FAILED )
return NULL;
// keep the same buffer if the string size didn't change: this is not only
// an optimization but also ensure that code which modifies string
// character by character (without changing its length) can continue to use
// the pointer returned by a previous wc_str() call even after changing the
// string
// TODO-UTF8: we could check for ">" instead of "!=" here as this would
// allow to save on buffer reallocations but at the cost of
// consuming (even) more memory, we should benchmark this to
// determine if it's worth doing
if ( !m_convertedToWChar.m_str || lenWC != m_convertedToWChar.m_len )
{
if ( !const_cast<wxString *>(this)->m_convertedToWChar.Extend(lenWC) )
return NULL;
}
#elif wxUSE_UNICODE_UTF8
// finally do convert
m_convertedToWChar.m_str[lenWC] = L'\0';
if ( conv.ToWChar(m_convertedToWChar.m_str, lenWC,
strMB, lenMB) == wxCONV_FAILED )
return NULL;
const wxScopedWCharBuffer wxString::wc_str() const
{
// NB: Length passed to cMB2WC() doesn't include terminating NUL, it's
// added by it automatically. If we passed length()+1 here, it would
// create a buffer with 2 trailing NULs of length one greater than
// expected.
return wxMBConvStrictUTF8().cMB2WC
(
m_impl.c_str(),
m_impl.length(),
NULL
);
return m_convertedToWChar.m_str;
}
const wxScopedCharBuffer wxString::mb_str(const wxMBConv& conv) const
#endif // !wxUSE_UNICODE_WCHAR
// Same thing for mb_str() which returns a normal char pointer to string
// contents: this always requires converting it to the specified encoding in
// non-ANSI build except if we need to convert to UTF-8 and this is what we
// already use internally.
#if wxUSE_UNICODE
const char *wxString::AsChar(const wxMBConv& conv) const
{
#if wxUSE_UNICODE_UTF8
if ( conv.IsUTF8() )
return wxScopedCharBuffer::CreateNonOwned(m_impl.c_str(), m_impl.length());
return m_impl.c_str();
wxScopedWCharBuffer wcBuf(wc_str());
if ( !wcBuf.length() )
return wxCharBuffer("");
const wchar_t * const strWC = AsWChar(wxMBConvStrictUTF8());
const size_t lenWC = m_convertedToWChar.m_len;
#else // wxUSE_UNICODE_WCHAR
const wchar_t * const strWC = m_impl.c_str();
const size_t lenWC = m_impl.length();
#endif // wxUSE_UNICODE_UTF8/wxUSE_UNICODE_WCHAR
return conv.cWC2MB(wcBuf.data(), wcBuf.length(), NULL);
}
const size_t lenMB = conv.FromWChar(NULL, 0, strWC, lenWC);
if ( lenMB == wxCONV_FAILED )
return NULL;
#else // ANSI
//Converts this string to a wide character string if unicode
//mode is not enabled and wxUSE_WCHAR_T is enabled
const wxScopedWCharBuffer wxString::wc_str(const wxMBConv& conv) const
if ( !m_convertedToChar.m_str || lenMB != m_convertedToChar.m_len )
{
// NB: Length passed to cMB2WC() doesn't include terminating NUL, it's
// added by it automatically. If we passed length()+1 here, it would
// create a buffer with 2 trailing NULs of length one greater than
// expected.
return conv.cMB2WC(wx_str(), length(), NULL);
if ( !const_cast<wxString *>(this)->m_convertedToChar.Extend(lenMB) )
return NULL;
}
#endif // Unicode/ANSI
m_convertedToChar.m_str[lenMB] = '\0';
if ( conv.FromWChar(m_convertedToChar.m_str, lenMB,
strWC, lenWC) == wxCONV_FAILED )
return NULL;
return m_convertedToChar.m_str;
}
#endif // wxUSE_UNICODE
// shrink to minimal size (releasing extra memory)
bool wxString::Shrink()

15
src/common/wxprintf.cpp
View File

@@ -142,9 +142,16 @@ static int wxDoVsnprintf(CharType *buf, size_t lenMax,
const CharType *toparse = format;
for (i=0; i < parser.nargs; i++)
{
wxPrintfConvSpec<CharType>& spec = parser.specs[i];
// skip any asterisks, they're processed as part of the conversion they
// apply to
if ( spec.m_type == wxPAT_STAR )
continue;
// copy in the output buffer the portion of the format string between
// last specifier and the current one
size_t tocopy = ( parser.arg[i].m_pArgPos - toparse );
size_t tocopy = ( spec.m_pArgPos - toparse );
lenCur += wxCopyStrWithPercents(lenMax - lenCur, buf + lenCur,
tocopy, toparse);
@@ -155,8 +162,8 @@ static int wxDoVsnprintf(CharType *buf, size_t lenMax,
}
// process this specifier directly in the output buffer
int n = parser.arg[i].Process(buf+lenCur, lenMax - lenCur,
&argdata[parser.arg[i].m_pos], lenCur);
int n = spec.Process(buf+lenCur, lenMax - lenCur,
&argdata[spec.m_pos], lenCur);
if (n == -1)
{
buf[lenMax-1] = wxT('\0'); // be sure to always NUL-terminate the string
@@ -166,7 +173,7 @@ static int wxDoVsnprintf(CharType *buf, size_t lenMax,
// the +1 is because wxPrintfConvSpec::m_pArgEnd points to the last character
// of the format specifier, but we are not interested to it...
toparse = parser.arg[i].m_pArgEnd + 1;
toparse = spec.m_pArgEnd + 1;
}
// copy portion of the format string after last specifier

12
src/xml/xml.cpp
View File

@@ -783,12 +783,18 @@ bool OutputString(wxOutputStream& stream,
#if wxUSE_UNICODE
wxUnusedVar(convMem);
if ( !convFile )
convFile = &wxConvUTF8;
const wxWX2MBbuf buf(str.mb_str(*(convFile ? convFile : &wxConvUTF8)));
if ( !buf )
const wxScopedCharBuffer buf(str.mb_str(*convFile));
if ( !buf.length() )
{
// conversion failed, can't write this string in an XML file in this
// (presumably non-UTF-8) encoding
return false;
}
stream.Write(buf, strlen(buf));
stream.Write(buf, buf.length());
#else // !wxUSE_UNICODE
if ( convFile && convMem )
{

10
tests/strings/vsnprintf.cpp
View File

@@ -55,27 +55,27 @@ int r;
#define CMP6(expected, fmt, y, z, w, t) \
r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y, z, w, t); \
CPPUNIT_ASSERT( r == (int)wxStrlen(buf) ); \
CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \
ASSERT_STR_EQUAL( wxT(expected), buf );
#define CMP5(expected, fmt, y, z, w) \
r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y, z, w); \
CPPUNIT_ASSERT( r == (int)wxStrlen(buf) ); \
CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \
ASSERT_STR_EQUAL( wxT(expected), buf );
#define CMP4(expected, fmt, y, z) \
r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y, z); \
CPPUNIT_ASSERT( r == (int)wxStrlen(buf) ); \
CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \
ASSERT_STR_EQUAL( wxT(expected), buf );
#define CMP3(expected, fmt, y) \
r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), y); \
CPPUNIT_ASSERT( r == (int)wxStrlen(buf) ); \
CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \
ASSERT_STR_EQUAL( wxT(expected), buf );
#define CMP2(expected, fmt) \
r=wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt)); \
CPPUNIT_ASSERT( r == (int)wxStrlen(buf) ); \
CPPUNIT_ASSERT_EQUAL( r, wxStrlen(buf) ); \
ASSERT_STR_EQUAL( wxT(expected), buf );
// NOTE: this macro is used also with too-small buffers (see Miscellaneous())