storing modal returncode correctly for carbon

[wxWidgets.git] / src / common / string.cpp

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 04a606a3c563b308768b9678347732562de43ac4..9e9ba528fcbd6b11bd7c64154fa70179ecba8563 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -24,6 +24,7 @@
 #ifndef WX_PRECOMP
     #include "wx/string.h"
     #include "wx/wxcrtvararg.h"
 #ifndef WX_PRECOMP
     #include "wx/string.h"
     #include "wx/wxcrtvararg.h"

+    #include "wx/log.h"

 #endif
 
 #include <ctype.h>
 #endif
 
 #include <ctype.h>


@@ -36,6 +37,12 @@
 #include <stdlib.h>
 
 #include "wx/hashmap.h"
 #include <stdlib.h>
 
 #include "wx/hashmap.h"

+#include "wx/vector.h"
+#include "wx/xlocale.h"
+
+#ifdef __WXMSW__
+    #include "wx/msw/wrapwin.h"
+#endif // __WXMSW__

 
 // string handling functions used by wxString:
 #if wxUSE_UNICODE_UTF8
 
 // string handling functions used by wxString:
 #if wxUSE_UNICODE_UTF8


@@ -50,6 +57,18 @@
     #define wxStringStrlen   wxStrlen
 #endif
 
     #define wxStringStrlen   wxStrlen
 #endif
 

+// ----------------------------------------------------------------------------
+// global variables
+// ----------------------------------------------------------------------------
+
+namespace wxPrivate
+{
+
+static UntypedBufferData s_untypedNullData(NULL, 0);
+
+UntypedBufferData * const untypedNullDataPtr = &s_untypedNullData;
+
+} // namespace wxPrivate

 
 // ---------------------------------------------------------------------------
 // static class variables definition
 
 // ---------------------------------------------------------------------------
 // static class variables definition


@@ -91,7 +110,7 @@ static wxStrCacheInitializer gs_stringCacheInit;
 
 // gdb seems to be unable to display thread-local variables correctly, at least
 // not my 6.4.98 version under amd64, so provide this debugging helper to do it
 
 // gdb seems to be unable to display thread-local variables correctly, at least
 // not my 6.4.98 version under amd64, so provide this debugging helper to do it

-#ifdef __WXDEBUG__
+#if wxDEBUG_LEVEL >= 2

 
 struct wxStrCacheDumper
 {
 
 struct wxStrCacheDumper
 {


@@ -116,7 +135,7 @@ struct wxStrCacheDumper
 
 void wxDumpStrCache() { wxStrCacheDumper::ShowAll(); }
 
 
 void wxDumpStrCache() { wxStrCacheDumper::ShowAll(); }
 

-#endif // __WXDEBUG__
+#endif // wxDEBUG_LEVEL >= 2

 
 #ifdef wxPROFILE_STRING_CACHE
 
 
 #ifdef wxPROFILE_STRING_CACHE
 


@@ -168,7 +187,7 @@ static wxStrCacheStatsDumper s_showCacheStats;
 wxSTD ostream& operator<<(wxSTD ostream& os, const wxCStrData& str)
 {
 #if wxUSE_UNICODE && !wxUSE_UNICODE_UTF8
 wxSTD ostream& operator<<(wxSTD ostream& os, const wxCStrData& str)
 {
 #if wxUSE_UNICODE && !wxUSE_UNICODE_UTF8

-    const wxCharBuffer buf(str.AsCharBuf());
+    const wxScopedCharBuffer buf(str.AsCharBuf());

     if ( !buf )
         os.clear(wxSTD ios_base::failbit);
     else
     if ( !buf )
         os.clear(wxSTD ios_base::failbit);
     else


@@ -185,13 +204,13 @@ wxSTD ostream& operator<<(wxSTD ostream& os, const wxString& str)
     return os << str.c_str();
 }
 
     return os << str.c_str();
 }
 

-wxSTD ostream& operator<<(wxSTD ostream& os, const wxCharBuffer& str)
+wxSTD ostream& operator<<(wxSTD ostream& os, const wxScopedCharBuffer& str)

 {
     return os << str.data();
 }
 
 #ifndef __BORLANDC__
 {
     return os << str.data();
 }
 
 #ifndef __BORLANDC__

-wxSTD ostream& operator<<(wxSTD ostream& os, const wxWCharBuffer& str)
+wxSTD ostream& operator<<(wxSTD ostream& os, const wxScopedWCharBuffer& str)

 {
     return os << str.data();
 }
 {
     return os << str.data();
 }


@@ -209,7 +228,7 @@ wxSTD wostream& operator<<(wxSTD wostream& wos, const wxCStrData& str)
     return wos << str.AsWChar();
 }
 
     return wos << str.AsWChar();
 }
 

-wxSTD wostream& operator<<(wxSTD wostream& wos, const wxWCharBuffer& str)
+wxSTD wostream& operator<<(wxSTD wostream& wos, const wxScopedWCharBuffer& str)

 {
     return wos << str.data();
 }
 {
     return wos << str.data();
 }


@@ -347,95 +366,6 @@ wxString::~wxString()
 }
 #endif
 
 }
 #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.
-    wxCharBuffer 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:
-    wxWCharBuffer 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
 // ===========================================================================
 // ===========================================================================
 // wxString class core
 // ===========================================================================


@@ -451,15 +381,15 @@ wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
 {
     // anything to do?
     if ( !psz || nLength == 0 )
 {
     // anything to do?
     if ( !psz || nLength == 0 )

-        return SubstrBufFromMB(L"", 0);
+        return SubstrBufFromMB(wxWCharBuffer(L""), 0);

 
     if ( nLength == npos )
         nLength = wxNO_LEN;
 
     size_t wcLen;
 
     if ( nLength == npos )
         nLength = wxNO_LEN;
 
     size_t wcLen;

-    wxWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));
+    wxScopedWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));

     if ( !wcLen )
     if ( !wcLen )

-        return SubstrBufFromMB(_T(""), 0);
+        return SubstrBufFromMB(wxWCharBuffer(L""), 0);

     else
         return SubstrBufFromMB(wcBuf, wcLen);
 }
     else
         return SubstrBufFromMB(wcBuf, wcLen);
 }


@@ -472,7 +402,7 @@ wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
 {
     // anything to do?
     if ( !psz || nLength == 0 )
 {
     // anything to do?
     if ( !psz || nLength == 0 )

-        return SubstrBufFromMB("", 0);
+        return SubstrBufFromMB(wxCharBuffer(""), 0);

 
     // if psz is already in UTF-8, we don't have to do the roundtrip to
     // wchar_t* and back:
 
     // if psz is already in UTF-8, we don't have to do the roundtrip to
     // wchar_t* and back:


@@ -485,7 +415,8 @@ wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
             // we must pass the real string length to SubstrBufFromMB ctor
             if ( nLength == npos )
                 nLength = psz ? strlen(psz) : 0;
             // we must pass the real string length to SubstrBufFromMB ctor
             if ( nLength == npos )
                 nLength = psz ? strlen(psz) : 0;

-            return SubstrBufFromMB(wxCharBuffer::CreateNonOwned(psz), nLength);
+            return SubstrBufFromMB(wxScopedCharBuffer::CreateNonOwned(psz, nLength),
+                                   nLength);

         }
         // else: do the roundtrip through wchar_t*
     }
         }
         // else: do the roundtrip through wchar_t*
     }


@@ -495,14 +426,14 @@ wxString::SubstrBufFromMB wxString::ConvertStr(const char *psz, size_t nLength,
 
     // first convert to wide string:
     size_t wcLen;
 
     // first convert to wide string:
     size_t wcLen;

-    wxWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));
+    wxScopedWCharBuffer wcBuf(conv.cMB2WC(psz, nLength, &wcLen));

     if ( !wcLen )
     if ( !wcLen )

-        return SubstrBufFromMB("", 0);
+        return SubstrBufFromMB(wxCharBuffer(""), 0);

 
     // and then to UTF-8:
     SubstrBufFromMB buf(ConvertStr(wcBuf, wcLen, wxMBConvStrictUTF8()));
     // widechar -> UTF-8 conversion isn't supposed to ever fail:
 
     // and then to UTF-8:
     SubstrBufFromMB buf(ConvertStr(wcBuf, wcLen, wxMBConvStrictUTF8()));
     // widechar -> UTF-8 conversion isn't supposed to ever fail:

-    wxASSERT_MSG( buf.data, _T("conversion to UTF-8 failed") );
+    wxASSERT_MSG( buf.data, wxT("conversion to UTF-8 failed") );

 
     return buf;
 }
 
     return buf;
 }


@@ -515,71 +446,111 @@ wxString::SubstrBufFromWC wxString::ConvertStr(const wchar_t *pwz, size_t nLengt
 {
     // anything to do?
     if ( !pwz || nLength == 0 )
 {
     // anything to do?
     if ( !pwz || nLength == 0 )

-        return SubstrBufFromWC("", 0);
+        return SubstrBufFromWC(wxCharBuffer(""), 0);

 
     if ( nLength == npos )
         nLength = wxNO_LEN;
 
     size_t mbLen;
 
     if ( nLength == npos )
         nLength = wxNO_LEN;
 
     size_t mbLen;

-    wxCharBuffer mbBuf(conv.cWC2MB(pwz, nLength, &mbLen));
+    wxScopedCharBuffer mbBuf(conv.cWC2MB(pwz, nLength, &mbLen));

     if ( !mbLen )
     if ( !mbLen )

-        return SubstrBufFromWC("", 0);
+        return SubstrBufFromWC(wxCharBuffer(""), 0);

     else
         return SubstrBufFromWC(mbBuf, mbLen);
 }
 #endif // wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE
 
     else
         return SubstrBufFromWC(mbBuf, mbLen);
 }
 #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 wxCharBuffer wxString::mb_str(const wxMBConv& conv) const
+const wchar_t *wxString::AsWChar(const wxMBConv& conv) const

 {
 {

-    return conv.cWC2MB(wx_str(), length() + 1 /* size, not length */, NULL);
-}
+    const char * const strMB = m_impl.c_str();
+    const size_t lenMB = m_impl.length();

 
 

-#elif wxUSE_UNICODE_UTF8
+    // find out the size of the buffer needed
+    const size_t lenWC = conv.ToWChar(NULL, 0, strMB, lenMB);
+    if ( lenWC == wxCONV_FAILED )
+        return NULL;

 
 

-const wxWCharBuffer wxString::wc_str() const
-{
-    return wxMBConvStrictUTF8().cMB2WC
-                                (
-                                    m_impl.c_str(),
-                                    m_impl.length() + 1, // size, not length
-                                    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;
+    }
+
+    // finally do convert
+    m_convertedToWChar.m_str[lenWC] = L'\0';
+    if ( conv.ToWChar(m_convertedToWChar.m_str, lenWC,
+                      strMB, lenMB) == wxCONV_FAILED )
+        return NULL;
+
+    return m_convertedToWChar.m_str;

 }
 
 }
 

-const wxCharBuffer 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() )
     if ( conv.IsUTF8() )

-        return wxCharBuffer::CreateNonOwned(m_impl.c_str());
+        return m_impl.c_str();

 
 

-    // FIXME-UTF8: use wc_str() here once we have buffers with length
+    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

 
 

-    size_t wcLen;
-    wxWCharBuffer wcBuf(wxMBConvStrictUTF8().cMB2WC
-                                             (
-                                                m_impl.c_str(),
-                                                m_impl.length() + 1, // size
-                                                &wcLen
-                                             ));
-    if ( !wcLen )
-        return wxCharBuffer("");
+    const size_t lenMB = conv.FromWChar(NULL, 0, strWC, lenWC);
+    if ( lenMB == wxCONV_FAILED )
+        return NULL;

 
 

-    return conv.cWC2MB(wcBuf, wcLen+1, NULL);
-}
+    if ( !m_convertedToChar.m_str || lenMB != m_convertedToChar.m_len )
+    {
+        if ( !const_cast<wxString *>(this)->m_convertedToChar.Extend(lenMB) )
+            return NULL;
+    }

 
 

-#else // ANSI
+    m_convertedToChar.m_str[lenMB] = '\0';
+    if ( conv.FromWChar(m_convertedToChar.m_str, lenMB,
+                        strWC, lenWC) == wxCONV_FAILED )
+        return NULL;

 
 

-//Converts this string to a wide character string if unicode
-//mode is not enabled and wxUSE_WCHAR_T is enabled
-const wxWCharBuffer wxString::wc_str(const wxMBConv& conv) const
-{
-    return conv.cMB2WC(wx_str(), length() + 1 /* size, not length */, NULL);
+    return m_convertedToChar.m_str;

 }
 
 }
 

-#endif // Unicode/ANSI
+#endif // wxUSE_UNICODE

 
 // shrink to minimal size (releasing extra memory)
 bool wxString::Shrink()
 
 // shrink to minimal size (releasing extra memory)
 bool wxString::Shrink()


@@ -670,7 +641,7 @@ wxString operator+(const wxString& str, const char *psz)
 
     wxString s;
     if ( !s.Alloc(strlen(psz) + str.length()) ) {
 
     wxString s;
     if ( !s.Alloc(strlen(psz) + str.length()) ) {

-        wxFAIL_MSG( _T("out of memory in wxString::operator+") );
+        wxFAIL_MSG( wxT("out of memory in wxString::operator+") );

     }
     s += str;
     s += psz;
     }
     s += str;
     s += psz;


@@ -686,7 +657,7 @@ wxString operator+(const wxString& str, const wchar_t *pwz)
 
     wxString s;
     if ( !s.Alloc(wxWcslen(pwz) + str.length()) ) {
 
     wxString s;
     if ( !s.Alloc(wxWcslen(pwz) + str.length()) ) {

-        wxFAIL_MSG( _T("out of memory in wxString::operator+") );
+        wxFAIL_MSG( wxT("out of memory in wxString::operator+") );

     }
     s += str;
     s += pwz;
     }
     s += str;
     s += pwz;


@@ -702,7 +673,7 @@ wxString operator+(const char *psz, const wxString& str)
 
     wxString s;
     if ( !s.Alloc(strlen(psz) + str.length()) ) {
 
     wxString s;
     if ( !s.Alloc(strlen(psz) + str.length()) ) {

-        wxFAIL_MSG( _T("out of memory in wxString::operator+") );
+        wxFAIL_MSG( wxT("out of memory in wxString::operator+") );

     }
     s = psz;
     s += str;
     }
     s = psz;
     s += str;


@@ -718,7 +689,7 @@ wxString operator+(const wchar_t *pwz, const wxString& str)
 
     wxString s;
     if ( !s.Alloc(wxWcslen(pwz) + str.length()) ) {
 
     wxString s;
     if ( !s.Alloc(wxWcslen(pwz) + str.length()) ) {

-        wxFAIL_MSG( _T("out of memory in wxString::operator+") );
+        wxFAIL_MSG( wxT("out of memory in wxString::operator+") );

     }
     s = pwz;
     s += str;
     }
     s = pwz;
     s += str;


@@ -936,7 +907,7 @@ size_t wxString::find_first_not_of(const wxChar* sz, size_t nStart) const
 
 size_t wxString::find_first_of(const wxChar* sz, size_t nStart, size_t n) const
 {
 
 size_t wxString::find_first_of(const wxChar* sz, size_t nStart, size_t n) const
 {

-    wxASSERT_MSG( nStart <= length(),  _T("invalid index") );
+    wxASSERT_MSG( nStart <= length(),  wxT("invalid index") );

 
     size_t idx = nStart;
     for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i )
 
     size_t idx = nStart;
     for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i )


@@ -950,7 +921,7 @@ size_t wxString::find_first_of(const wxChar* sz, size_t nStart, size_t n) const
 
 size_t wxString::find_first_not_of(const wxChar* sz, size_t nStart, size_t n) const
 {
 
 size_t wxString::find_first_not_of(const wxChar* sz, size_t nStart, size_t n) const
 {

-    wxASSERT_MSG( nStart <= length(),  _T("invalid index") );
+    wxASSERT_MSG( nStart <= length(),  wxT("invalid index") );

 
     size_t idx = nStart;
     for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i )
 
     size_t idx = nStart;
     for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i )


@@ -983,7 +954,7 @@ size_t wxString::find_last_of(const wxChar* sz, size_t nStart, size_t n) const
     }
     else
     {
     }
     else
     {

-        wxASSERT_MSG( nStart <= len, _T("invalid index") );
+        wxASSERT_MSG( nStart <= len, wxT("invalid index") );

     }
 
     size_t idx = nStart;
     }
 
     size_t idx = nStart;


@@ -1007,7 +978,7 @@ size_t wxString::find_last_not_of(const wxChar* sz, size_t nStart, size_t n) con
     }
     else
     {
     }
     else
     {

-        wxASSERT_MSG( nStart <= len, _T("invalid index") );
+        wxASSERT_MSG( nStart <= len, wxT("invalid index") );

     }
 
     size_t idx = nStart;
     }
 
     size_t idx = nStart;


@@ -1023,7 +994,7 @@ size_t wxString::find_last_not_of(const wxChar* sz, size_t nStart, size_t n) con
 
 size_t wxString::find_first_not_of(wxUniChar ch, size_t nStart) const
 {
 
 size_t wxString::find_first_not_of(wxUniChar ch, size_t nStart) const
 {

-    wxASSERT_MSG( nStart <= length(),  _T("invalid index") );
+    wxASSERT_MSG( nStart <= length(),  wxT("invalid index") );

 
     size_t idx = nStart;
     for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i )
 
     size_t idx = nStart;
     for ( const_iterator i = begin() + nStart; i != end(); ++idx, ++i )


@@ -1045,7 +1016,7 @@ size_t wxString::find_last_not_of(wxUniChar ch, size_t nStart) const
     }
     else
     {
     }
     else
     {

-        wxASSERT_MSG( nStart <= len, _T("invalid index") );
+        wxASSERT_MSG( nStart <= len, wxT("invalid index") );

     }
 
     size_t idx = nStart;
     }
 
     size_t idx = nStart;


@@ -1103,8 +1074,36 @@ size_t wxString::find_last_not_of(const wxOtherCharType* sz, size_t nStart,
 
 int wxString::CmpNoCase(const wxString& s) const
 {
 
 int wxString::CmpNoCase(const wxString& s) const
 {

-    // FIXME-UTF8: use wxUniChar::ToLower/ToUpper once added
+#if defined(__WXMSW__) && !wxUSE_UNICODE_UTF8
+    // prefer to use CompareString() if available as it's more efficient than
+    // doing it manual or even using wxStricmp() (see #10375)
+    switch ( ::CompareString(LOCALE_USER_DEFAULT, NORM_IGNORECASE,
+                             m_impl.c_str(), m_impl.length(),
+                             s.m_impl.c_str(), s.m_impl.length()) )
+    {
+        case CSTR_LESS_THAN:
+            return -1;

 
 

+        case CSTR_EQUAL:
+            return 0;
+
+        case CSTR_GREATER_THAN:
+            return 1;
+
+        default:
+            wxFAIL_MSG( "unexpected CompareString() return value" );
+            // fall through
+
+        case 0:
+            wxLogLastError("CompareString");
+            // use generic code below
+    }
+#endif // __WXMSW__ && !wxUSE_UNICODE_UTF8
+
+    // do the comparison manually: notice that we can't use wxStricmp() as it
+    // doesn't handle embedded NULs
+
+    // FIXME-UTF8: use wxUniChar::ToLower/ToUpper once added

     const_iterator i1 = begin();
     const_iterator end1 = end();
     const_iterator i2 = s.begin();
     const_iterator i1 = begin();
     const_iterator end1 = end();
     const_iterator i2 = s.begin();


@@ -1152,7 +1151,7 @@ wxString wxString::FromAscii(const char *ascii, size_t len)
         {
             unsigned char c = (unsigned char)*ascii++;
             wxASSERT_MSG( c < 0x80,
         {
             unsigned char c = (unsigned char)*ascii++;
             wxASSERT_MSG( c < 0x80,

-                          _T("Non-ASCII value passed to FromAscii().") );
+                          wxT("Non-ASCII value passed to FromAscii().") );

 
             *dest++ = (wchar_t)c;
         }
 
             *dest++ = (wchar_t)c;
         }


@@ -1172,13 +1171,13 @@ wxString wxString::FromAscii(char ascii)
 
     unsigned char c = (unsigned char)ascii;
 
 
     unsigned char c = (unsigned char)ascii;
 

-    wxASSERT_MSG( c < 0x80, _T("Non-ASCII value passed to FromAscii().") );
+    wxASSERT_MSG( c < 0x80, wxT("Non-ASCII value passed to FromAscii().") );

 
     // NB: the cast to wchar_t causes interpretation of 'ascii' as Latin1 value
     return wxString(wxUniChar((wchar_t)c));
 }
 
 
     // NB: the cast to wchar_t causes interpretation of 'ascii' as Latin1 value
     return wxString(wxUniChar((wchar_t)c));
 }
 

-const wxCharBuffer wxString::ToAscii() const
+const wxScopedCharBuffer wxString::ToAscii() const

 {
     // this will allocate enough space for the terminating NUL too
     wxCharBuffer buffer(length());
 {
     // this will allocate enough space for the terminating NUL too
     wxCharBuffer buffer(length());


@@ -1227,7 +1226,7 @@ wxString wxString::Mid(size_t nFirst, size_t nCount) const
     wxString dest(*this, nFirst, nCount);
     if ( dest.length() != nCount )
     {
     wxString dest(*this, nFirst, nCount);
     if ( dest.length() != nCount )
     {

-        wxFAIL_MSG( _T("out of memory in wxString::Mid") );
+        wxFAIL_MSG( wxT("out of memory in wxString::Mid") );

     }
 
     return dest;
     }
 
     return dest;


@@ -1277,7 +1276,7 @@ wxString wxString::Right(size_t nCount) const
 
   wxString dest(*this, length() - nCount, nCount);
   if ( dest.length() != nCount ) {
 
   wxString dest(*this, length() - nCount, nCount);
   if ( dest.length() != nCount ) {

-    wxFAIL_MSG( _T("out of memory in wxString::Right") );
+    wxFAIL_MSG( wxT("out of memory in wxString::Right") );

   }
   return dest;
 }
   }
   return dest;
 }


@@ -1304,7 +1303,7 @@ wxString wxString::Left(size_t nCount) const
 
   wxString dest(*this, 0, nCount);
   if ( dest.length() != nCount ) {
 
   wxString dest(*this, 0, nCount);
   if ( dest.length() != nCount ) {

-    wxFAIL_MSG( _T("out of memory in wxString::Left") );
+    wxFAIL_MSG( wxT("out of memory in wxString::Left") );

   }
   return dest;
 }
   }
   return dest;
 }


@@ -1349,7 +1348,7 @@ size_t wxString::Replace(const wxString& strOld,
 {
     // if we tried to replace an empty string we'd enter an infinite loop below
     wxCHECK_MSG( !strOld.empty(), 0,
 {
     // if we tried to replace an empty string we'd enter an infinite loop below
     wxCHECK_MSG( !strOld.empty(), 0,

-                 _T("wxString::Replace(): invalid parameter") );
+                 wxT("wxString::Replace(): invalid parameter") );

 
     wxSTRING_INVALIDATE_CACHE();
 
 
     wxSTRING_INVALIDATE_CACHE();
 


@@ -1381,30 +1380,62 @@ size_t wxString::Replace(const wxString& strOld,
                 break;
         }
     }
                 break;
         }
     }

-    else // general case
+    else if ( !bReplaceAll)
+    {
+        size_t pos = m_impl.find(strOld, 0);
+        if ( pos != npos )
+        {
+            m_impl.replace(pos, strOld.m_impl.length(), strNew.m_impl);
+            uiCount = 1;
+        }
+    }
+    else // replace all occurrences

     {
         const size_t uiOldLen = strOld.m_impl.length();
         const size_t uiNewLen = strNew.m_impl.length();
 
     {
         const size_t uiOldLen = strOld.m_impl.length();
         const size_t uiNewLen = strNew.m_impl.length();
 

-        for ( size_t pos = 0; ; )
+        // first scan the string to find all positions at which the replacement
+        // should be made
+        wxVector<size_t> replacePositions;
+
+        size_t pos;
+        for ( pos = m_impl.find(strOld.m_impl, 0);
+              pos != npos;
+              pos = m_impl.find(strOld.m_impl, pos + uiOldLen))

         {
         {

-            pos = m_impl.find(strOld.m_impl, pos);
-            if ( pos == npos )
-                break;
+            replacePositions.push_back(pos);
+            ++uiCount;
+        }

 
 

-            // replace this occurrence of the old string with the new one
-            m_impl.replace(pos, uiOldLen, strNew.m_impl);
+        if ( !uiCount )
+            return 0;

 
 

-            // move up pos past the string that was replaced
-            pos += uiNewLen;
+        // allocate enough memory for the whole new string
+        wxString tmp;
+        tmp.m_impl.reserve(m_impl.length() + uiCount*(uiNewLen - uiOldLen));

 
 

-            // increase replace count
-            uiCount++;
+        // copy this string to tmp doing replacements on the fly
+        size_t replNum = 0;
+        for ( pos = 0; replNum < uiCount; replNum++ )
+        {
+            const size_t nextReplPos = replacePositions[replNum];

 
 

-            // stop after the first one?
-            if ( !bReplaceAll )
-                break;
+            if ( pos != nextReplPos )
+            {
+                tmp.m_impl.append(m_impl, pos, nextReplPos - pos);
+            }
+
+            tmp.m_impl.append(strNew.m_impl);
+            pos = nextReplPos + uiOldLen;

         }
         }

+
+        if ( pos != m_impl.length() )
+        {
+            // append the rest of the string unchanged
+            tmp.m_impl.append(m_impl, pos, m_impl.length() - pos);
+        }
+
+        swap(tmp);

     }
 
     return uiCount;
     }
 
     return uiCount;


@@ -1439,7 +1470,7 @@ bool wxString::IsNumber() const
 
     const_iterator i = begin();
 
 
     const_iterator i = begin();
 

-    if ( *i == _T('-') || *i == _T('+') )
+    if ( *i == wxT('-') || *i == wxT('+') )

         ++i;
 
     for ( ; i != end(); ++i )
         ++i;
 
     for ( ; i != end(); ++i )


@@ -1595,64 +1626,105 @@ int wxString::Find(wxUniChar ch, bool bFromEnd) const
     #define DO_IF_NOT_WINCE(x)
 #endif
 
     #define DO_IF_NOT_WINCE(x)
 #endif
 

-#define WX_STRING_TO_INT_TYPE(out, base, func, T)                           \
-    wxCHECK_MSG( out, false, _T("NULL output pointer") );                   \
-    wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );  \
-                                                                            \
+#define WX_STRING_TO_X_TYPE_START                                           \
+    wxCHECK_MSG( pVal, false, wxT("NULL output pointer") );                  \

     DO_IF_NOT_WINCE( errno = 0; )                                           \
     DO_IF_NOT_WINCE( errno = 0; )                                           \

-                                                                            \

     const wxStringCharType *start = wx_str();                               \
     const wxStringCharType *start = wx_str();                               \

-    wxStringCharType *end;                                                  \
-    T val = func(start, &end, base);                                        \
-                                                                            \
-    /* return true only if scan was stopped by the terminating NUL and */   \
-    /* if the string was not empty to start with and no under/overflow */   \
-    /* occurred: */                                                         \
-    if ( *end || end == start DO_IF_NOT_WINCE(|| errno == ERANGE) )         \
+    wxStringCharType *end;
+
+// notice that we return false without modifying the output parameter at all if
+// nothing could be parsed but we do modify it and return false then if we did
+// parse something successfully but not the entire string
+#define WX_STRING_TO_X_TYPE_END                                             \
+    if ( end == start DO_IF_NOT_WINCE(|| errno == ERANGE) )                 \

         return false;                                                       \
         return false;                                                       \

-    *out = val;                                                             \
-    return true
+    *pVal = val;                                                            \
+    return !*end;

 
 bool wxString::ToLong(long *pVal, int base) const
 {
 
 bool wxString::ToLong(long *pVal, int base) const
 {

-    WX_STRING_TO_INT_TYPE(pVal, base, wxStrtol, long);
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );
+
+    WX_STRING_TO_X_TYPE_START
+    long val = wxStrtol(start, &end, base);
+    WX_STRING_TO_X_TYPE_END

 }
 
 bool wxString::ToULong(unsigned long *pVal, int base) const
 {
 }
 
 bool wxString::ToULong(unsigned long *pVal, int base) const
 {

-    WX_STRING_TO_INT_TYPE(pVal, base, wxStrtoul, unsigned long);
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );
+
+    WX_STRING_TO_X_TYPE_START
+    unsigned long val = wxStrtoul(start, &end, base);
+    WX_STRING_TO_X_TYPE_END

 }
 
 bool wxString::ToLongLong(wxLongLong_t *pVal, int base) const
 {
 }
 
 bool wxString::ToLongLong(wxLongLong_t *pVal, int base) const
 {

-    WX_STRING_TO_INT_TYPE(pVal, base, wxStrtoll, wxLongLong_t);
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );
+
+    WX_STRING_TO_X_TYPE_START
+    wxLongLong_t val = wxStrtoll(start, &end, base);
+    WX_STRING_TO_X_TYPE_END

 }
 
 bool wxString::ToULongLong(wxULongLong_t *pVal, int base) const
 {
 }
 
 bool wxString::ToULongLong(wxULongLong_t *pVal, int base) const
 {

-    WX_STRING_TO_INT_TYPE(pVal, base, wxStrtoull, wxULongLong_t);
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );
+
+    WX_STRING_TO_X_TYPE_START
+    wxULongLong_t val = wxStrtoull(start, &end, base);
+    WX_STRING_TO_X_TYPE_END

 }
 
 bool wxString::ToDouble(double *pVal) const
 {
 }
 
 bool wxString::ToDouble(double *pVal) const
 {

-    wxCHECK_MSG( pVal, false, _T("NULL output pointer") );
+    WX_STRING_TO_X_TYPE_START
+    double val = wxStrtod(start, &end);
+    WX_STRING_TO_X_TYPE_END
+}

 
 

-    DO_IF_NOT_WINCE( errno = 0; )
+#if wxUSE_XLOCALE

 
 

-    const wxChar *start = c_str();
-    wxChar *end;
-    double val = wxStrtod(start, &end);
+bool wxString::ToCLong(long *pVal, int base) const
+{
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );

 
 

-    // return true only if scan was stopped by the terminating NUL and if the
-    // string was not empty to start with and no under/overflow occurred
-    if ( *end || end == start DO_IF_NOT_WINCE(|| errno == ERANGE) )
-        return false;
+    WX_STRING_TO_X_TYPE_START
+#if (wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE) && defined(wxHAS_XLOCALE_SUPPORT)
+    long val = wxStrtol_lA(start, &end, base, wxCLocale);
+#else
+    long val = wxStrtol_l(start, &end, base, wxCLocale);
+#endif
+    WX_STRING_TO_X_TYPE_END
+}

 
 

-    *pVal = val;
+bool wxString::ToCULong(unsigned long *pVal, int base) const
+{
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );

 
 

-    return true;
+    WX_STRING_TO_X_TYPE_START
+#if (wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE) && defined(wxHAS_XLOCALE_SUPPORT)
+    unsigned long val = wxStrtoul_lA(start, &end, base, wxCLocale);
+#else
+    unsigned long val = wxStrtoul_l(start, &end, base, wxCLocale);
+#endif
+    WX_STRING_TO_X_TYPE_END

 }
 
 }
 

+bool wxString::ToCDouble(double *pVal) const
+{
+    WX_STRING_TO_X_TYPE_START
+#if (wxUSE_UNICODE_UTF8 || !wxUSE_UNICODE) && defined(wxHAS_XLOCALE_SUPPORT)
+    double val = wxStrtod_lA(start, &end, wxCLocale);
+#else
+    double val = wxStrtod_l(start, &end, wxCLocale);
+#endif
+    WX_STRING_TO_X_TYPE_END
+}
+
+#endif  // wxUSE_XLOCALE
+

 // ---------------------------------------------------------------------------
 // formatted output
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // formatted output
 // ---------------------------------------------------------------------------


@@ -1846,7 +1918,7 @@ static int DoStringPrintfV(wxString& str,
         // always do it manually
         // FIXME: This really seems to be the wrong and would be an off-by-one
         // bug except the code above allocates an extra character.
         // always do it manually
         // FIXME: This really seems to be the wrong and would be an off-by-one
         // bug except the code above allocates an extra character.

-        buf[size] = _T('\0');
+        buf[size] = wxT('\0');

 
         // vsnprintf() may return either -1 (traditional Unix behaviour) or the
         // total number of characters which would have been written if the
 
         // vsnprintf() may return either -1 (traditional Unix behaviour) or the
         // total number of characters which would have been written if the


@@ -1952,31 +2024,31 @@ bool wxString::Matches(const wxString& mask) const
     wxString pattern;
     pattern.reserve(wxStrlen(pszMask));
 
     wxString pattern;
     pattern.reserve(wxStrlen(pszMask));
 

-    pattern += _T('^');
+    pattern += wxT('^');

     while ( *pszMask )
     {
         switch ( *pszMask )
         {
     while ( *pszMask )
     {
         switch ( *pszMask )
         {

-            case _T('?'):
-                pattern += _T('.');
+            case wxT('?'):
+                pattern += wxT('.');

                 break;
 
                 break;
 

-            case _T('*'):
-                pattern += _T(".*");
+            case wxT('*'):
+                pattern += wxT(".*");

                 break;
 
                 break;
 

-            case _T('^'):
-            case _T('.'):
-            case _T('$'):
-            case _T('('):
-            case _T(')'):
-            case _T('|'):
-            case _T('+'):
-            case _T('\\'):
+            case wxT('^'):
+            case wxT('.'):
+            case wxT('$'):
+            case wxT('('):
+            case wxT(')'):
+            case wxT('|'):
+            case wxT('+'):
+            case wxT('\\'):

                 // these characters are special in a RE, quote them
                 // (however note that we don't quote '[' and ']' to allow
                 // using them for Unix shell like matching)
                 // these characters are special in a RE, quote them
                 // (however note that we don't quote '[' and ']' to allow
                 // using them for Unix shell like matching)

-                pattern += _T('\\');
+                pattern += wxT('\\');

                 // fall through
 
             default:
                 // fall through
 
             default:


@@ -1985,7 +2057,7 @@ bool wxString::Matches(const wxString& mask) const
 
         pszMask++;
     }
 
         pszMask++;
     }

-    pattern += _T('$');
+    pattern += wxT('$');

 
     // and now use it
     return wxRegEx(pattern, wxRE_NOSUB | wxRE_EXTENDED).Matches(c_str());
 
     // and now use it
     return wxRegEx(pattern, wxRE_NOSUB | wxRE_EXTENDED).Matches(c_str());


@@ -1994,8 +2066,8 @@ bool wxString::Matches(const wxString& mask) const
 
   // FIXME-UTF8: implement using iterators, remove #if
 #if wxUSE_UNICODE_UTF8
 
   // FIXME-UTF8: implement using iterators, remove #if
 #if wxUSE_UNICODE_UTF8

-  wxWCharBuffer maskBuf = mask.wc_str();
-  wxWCharBuffer txtBuf = wc_str();
+  const wxScopedWCharBuffer maskBuf = mask.wc_str();
+  const wxScopedWCharBuffer txtBuf = wc_str();

   const wxChar *pszMask = maskBuf.data();
   const wxChar *pszTxt = txtBuf.data();
 #else
   const wxChar *pszMask = maskBuf.data();
   const wxChar *pszTxt = txtBuf.data();
 #else


@@ -2097,47 +2169,3 @@ int wxString::Freq(wxUniChar ch) const
     return count;
 }
 
     return count;
 }
 

-// ----------------------------------------------------------------------------
-// wxUTF8StringBuffer
-// ----------------------------------------------------------------------------
-
-#if wxUSE_UNICODE_WCHAR
-wxUTF8StringBuffer::~wxUTF8StringBuffer()
-{
-    wxMBConvStrictUTF8 conv;
-    size_t wlen = conv.ToWChar(NULL, 0, m_buf);
-    wxCHECK_RET( wlen != wxCONV_FAILED, "invalid UTF-8 data in string buffer?" );
-
-    wxStringInternalBuffer wbuf(m_str, wlen);
-    conv.ToWChar(wbuf, wlen, m_buf);
-}
-
-wxUTF8StringBufferLength::~wxUTF8StringBufferLength()
-{
-    wxCHECK_RET(m_lenSet, "length not set");
-
-    wxMBConvStrictUTF8 conv;
-    size_t wlen = conv.ToWChar(NULL, 0, m_buf, m_len);
-    wxCHECK_RET( wlen != wxCONV_FAILED, "invalid UTF-8 data in string buffer?" );
-
-    wxStringInternalBufferLength wbuf(m_str, wlen);
-    conv.ToWChar(wbuf, wlen, m_buf, m_len);
-    wbuf.SetLength(wlen);
-}
-#endif // wxUSE_UNICODE_WCHAR
-
-// ----------------------------------------------------------------------------
-// wxCharBufferType<T>
-// ----------------------------------------------------------------------------
-
-#ifndef __VMS_BROKEN_TEMPLATES
-template<>
-#endif
-wxCharTypeBuffer<char>::Data
-wxCharTypeBuffer<char>::NullData(NULL);
-
-#ifndef __VMS_BROKEN_TEMPLATES
-template<>
-#endif
-wxCharTypeBuffer<wchar_t>::Data
-wxCharTypeBuffer<wchar_t>::NullData(NULL);