Increased the max length of allowed WHERE clauses and full statements (eventually...

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

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 84b2bb55496af39407b1ea0110f430b432ca8478..f8d1fc4594783063940b13e1783b094399702e83 100644 (file)
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -10,7 +10,7 @@
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__

-#pragma implementation "string.h"
+  #pragma implementation "string.h"

 #endif
 
 /*
 #endif
 
 /*


@@ -28,20 +28,25 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+  #pragma hdrstop

 #endif
 
 #ifndef WX_PRECOMP
   #include "wx/defs.h"
   #include "wx/string.h"
   #include "wx/intl.h"
 #endif
 
 #ifndef WX_PRECOMP
   #include "wx/defs.h"
   #include "wx/string.h"
   #include "wx/intl.h"

+  #include "wx/thread.h"

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

-#ifdef wxUSE_WCSRTOMBS
+#ifdef __SALFORDC__
+  #include <clib.h>
+#endif
+
+#if wxUSE_WCSRTOMBS

   #include <wchar.h>    // for wcsrtombs(), see comments where it's used
 #endif // GNU
 
   #include <wchar.h>    // for wcsrtombs(), see comments where it's used
 #endif // GNU
 


@@ -49,6 +54,11 @@
   IMPLEMENT_DYNAMIC_CLASS(wxString, wxObject)
 #endif  //WXSTRING_IS_WXOBJECT
 
   IMPLEMENT_DYNAMIC_CLASS(wxString, wxObject)
 #endif  //WXSTRING_IS_WXOBJECT
 

+#if wxUSE_UNICODE
+#undef wxUSE_EXPERIMENTAL_PRINTF
+#define wxUSE_EXPERIMENTAL_PRINTF 1
+#endif
+

 // allocating extra space for each string consumes more memory but speeds up
 // the concatenation operations (nLen is the current string's length)
 // NB: EXTRA_ALLOC must be >= 0!
 // allocating extra space for each string consumes more memory but speeds up
 // the concatenation operations (nLen is the current string's length)
 // NB: EXTRA_ALLOC must be >= 0!


@@ -58,9 +68,9 @@
 // static class variables definition
 // ---------------------------------------------------------------------------
 
 // static class variables definition
 // ---------------------------------------------------------------------------
 

-#ifdef  STD_STRING_COMPATIBILITY
-  const size_t wxString::npos = STRING_MAXLEN;
-#endif
+#ifdef  wxSTD_STRING_COMPATIBILITY
+  const size_t wxString::npos = wxSTRING_MAXLEN;
+#endif // wxSTD_STRING_COMPATIBILITY

 
 // ----------------------------------------------------------------------------
 // static data
 
 // ----------------------------------------------------------------------------
 // static data


@@ -72,47 +82,88 @@
 static const struct
 {
   wxStringData data;
 static const struct
 {
   wxStringData data;

-  char dummy;
-} g_strEmpty = { {-1, 0, 0}, '\0' };
+  wxChar dummy;
+} g_strEmpty = { {-1, 0, 0}, wxT('\0') };
+
+#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
+// must define this static for VA or else you get multiply defined symbols everywhere
+const unsigned int wxSTRING_MAXLEN = UINT_MAX - 100;
+
+#endif

 
 // empty C style string: points to 'string data' byte of g_strEmpty
 
 // empty C style string: points to 'string data' byte of g_strEmpty

-extern const char *g_szNul = &g_strEmpty.dummy;
+extern const wxChar WXDLLEXPORT *wxEmptyString = &g_strEmpty.dummy;
+
+// ----------------------------------------------------------------------------
+// conditional compilation
+// ----------------------------------------------------------------------------
+
+#if !defined(__WXSW__) && wxUSE_UNICODE
+  #ifdef wxUSE_EXPERIMENTAL_PRINTF
+    #undef wxUSE_EXPERIMENTAL_PRINTF
+  #endif
+  #define wxUSE_EXPERIMENTAL_PRINTF 1
+#endif
+
+// we want to find out if the current platform supports vsnprintf()-like
+// function: for Unix this is done with configure, for Windows we test the
+// compiler explicitly.
+//
+// FIXME currently, this is only for ANSI (!Unicode) strings, so we call this
+//       function wxVsnprintfA (A for ANSI), should also find one for Unicode
+//       strings in Unicode build
+#ifdef __WXMSW__
+    #if defined(__VISUALC__) || (defined(__MINGW32__) && wxUSE_NORLANDER_HEADERS)
+        #define wxVsnprintfA     _vsnprintf
+    #endif
+#else   // !Windows
+    #ifdef HAVE_VSNPRINTF
+        #define wxVsnprintfA       vsnprintf
+    #endif
+#endif  // Windows/!Windows
+
+#ifndef wxVsnprintfA
+    // in this case we'll use vsprintf() (which is ANSI and thus should be
+    // always available), but it's unsafe because it doesn't check for buffer
+    // size - so give a warning
+    #define wxVsnprintfA(buf, len, format, arg) vsprintf(buf, format, arg)
+
+    #if defined(__VISUALC__)
+        #pragma message("Using sprintf() because no snprintf()-like function defined")
+    #elif defined(__GNUG__) && !defined(__UNIX__)
+        #warning "Using sprintf() because no snprintf()-like function defined"
+    #elif defined(__MWERKS__)
+        #warning "Using sprintf() because no snprintf()-like function defined"
+    #endif //compiler
+#endif // no vsnprintf
+
+#ifdef _AIX
+  // AIX has vsnprintf, but there's no prototype in the system headers.
+  extern "C" int vsnprintf(char* str, size_t n, const char* format, va_list ap);
+#endif

 
 // ----------------------------------------------------------------------------
 // global functions
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // global functions
 // ----------------------------------------------------------------------------
 

-#ifdef  STD_STRING_COMPATIBILITY
+#if defined(wxSTD_STRING_COMPATIBILITY) && wxUSE_STD_IOSTREAM

 
 // MS Visual C++ version 5.0 provides the new STL headers as well as the old
 // iostream ones.
 //
 // ATTN: you can _not_ use both of these in the same program!
 
 // MS Visual C++ version 5.0 provides the new STL headers as well as the old
 // iostream ones.
 //
 // ATTN: you can _not_ use both of these in the same program!

-#if wxUSE_IOSTREAMH
-#include <iostream.h>
-#define   NAMESPACE
-#else
-#include <iostream>
-#  ifdef _MSC_VER
-      using namespace std;
-#  endif
-// for msvc (bcc50+ also) you don't need these NAMESPACE defines,
-// using namespace std; takes care of that.
-#define   NAMESPACE   std::
-#endif

 
 

-
-NAMESPACE istream& operator>>(NAMESPACE istream& is, wxString& WXUNUSED(str))
+istream& operator>>(istream& is, wxString& WXUNUSED(str))

 {
 #if 0
   int w = is.width(0);
   if ( is.ipfx(0) ) {
 {
 #if 0
   int w = is.width(0);
   if ( is.ipfx(0) ) {

-    NAMESPACE streambuf *sb = is.rdbuf();
+    streambuf *sb = is.rdbuf();

     str.erase();
     while ( true ) {
       int ch = sb->sbumpc ();
       if ( ch == EOF ) {
     str.erase();
     while ( true ) {
       int ch = sb->sbumpc ();
       if ( ch == EOF ) {

-        is.setstate(NAMESPACE ios::eofbit);
+        is.setstate(ios::eofbit);

         break;
       }
       else if ( isspace(ch) ) {
         break;
       }
       else if ( isspace(ch) ) {


@@ -128,13 +179,58 @@ NAMESPACE istream& operator>>(NAMESPACE istream& is, wxString& WXUNUSED(str))
 
   is.isfx();
   if ( str.length() == 0 )
 
   is.isfx();
   if ( str.length() == 0 )

-    is.setstate(NAMESPACE ios::failbit);
+    is.setstate(ios::failbit);

 #endif
   return is;
 }
 
 #endif
   return is;
 }
 

+ostream& operator<<(ostream& os, const wxString& str)
+{
+  os << str.c_str();
+  return os;
+}
+

 #endif  //std::string compatibility
 
 #endif  //std::string compatibility
 

+extern int WXDLLEXPORT wxVsnprintf(wxChar *buf, size_t len,
+                                   const wxChar *format, va_list argptr)
+{
+#if wxUSE_UNICODE
+    // FIXME should use wvsnprintf() or whatever if it's available
+    wxString s;
+    int iLen = s.PrintfV(format, argptr);
+    if ( iLen != -1 )
+    {
+        wxStrncpy(buf, s.c_str(), iLen);
+    }
+
+    return iLen;
+#else // ANSI
+    // vsnprintf() will not terminate the string with '\0' if there is not
+    // enough place, but we want the string to always be NUL terminated
+    int rc = wxVsnprintfA(buf, len - 1, format, argptr);
+    if ( rc == -1 )
+    {
+        buf[len] = 0;
+    }
+
+    return rc;
+#endif // Unicode/ANSI
+}
+
+extern int WXDLLEXPORT wxSnprintf(wxChar *buf, size_t len,
+                                  const wxChar *format, ...)
+{
+    va_list argptr;
+    va_start(argptr, format);
+
+    int iLen = wxVsnprintf(buf, len, format, argptr);
+
+    va_end(argptr);
+
+    return iLen;
+}
+

 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // private classes
 // ----------------------------------------------------------------------------


@@ -173,81 +269,98 @@ NAMESPACE istream& operator>>(NAMESPACE istream& is, wxString& WXUNUSED(str))
 // ---------------------------------------------------------------------------
 
 // constructs string of <nLength> copies of character <ch>
 // ---------------------------------------------------------------------------
 
 // constructs string of <nLength> copies of character <ch>

-wxString::wxString(char ch, size_t nLength)
+wxString::wxString(wxChar ch, size_t nLength)

 {
   Init();
 
   if ( nLength > 0 ) {
     AllocBuffer(nLength);
 
 {
   Init();
 
   if ( nLength > 0 ) {
     AllocBuffer(nLength);
 

-    wxASSERT( sizeof(char) == 1 );  // can't use memset if not
-
+#if wxUSE_UNICODE
+    // memset only works on char
+    for (size_t n=0; n<nLength; n++) m_pchData[n] = ch;
+#else

     memset(m_pchData, ch, nLength);
     memset(m_pchData, ch, nLength);

+#endif

   }
 }
 
 // takes nLength elements of psz starting at nPos
   }
 }
 
 // takes nLength elements of psz starting at nPos

-void wxString::InitWith(const char *psz, size_t nPos, size_t nLength)
+void wxString::InitWith(const wxChar *psz, size_t nPos, size_t nLength)

 {
   Init();
 
 {
   Init();
 

-  wxASSERT( nPos <= Strlen(psz) );
+  // if the length is not given, assume the string to be NUL terminated
+  if ( nLength == wxSTRING_MAXLEN ) {
+    wxASSERT_MSG( nPos <= wxStrlen(psz), _T("index out of bounds") );

 
 

-  if ( nLength == STRING_MAXLEN )
-    nLength = Strlen(psz + nPos);
+    nLength = wxStrlen(psz + nPos);
+  }

 
   STATISTICS_ADD(InitialLength, nLength);
 
   if ( nLength > 0 ) {
     // trailing '\0' is written in AllocBuffer()
     AllocBuffer(nLength);
 
   STATISTICS_ADD(InitialLength, nLength);
 
   if ( nLength > 0 ) {
     // trailing '\0' is written in AllocBuffer()
     AllocBuffer(nLength);

-    memcpy(m_pchData, psz + nPos, nLength*sizeof(char));
+    memcpy(m_pchData, psz + nPos, nLength*sizeof(wxChar));

   }
 }
 
   }
 }
 

-// the same as previous constructor, but for compilers using unsigned char
-wxString::wxString(const unsigned char* psz, size_t nLength)
-{
-  InitWith((const char *)psz, 0, nLength);
-}
-
-#ifdef  STD_STRING_COMPATIBILITY
+#ifdef  wxSTD_STRING_COMPATIBILITY

 
 // poor man's iterators are "void *" pointers
 wxString::wxString(const void *pStart, const void *pEnd)
 {
 
 // poor man's iterators are "void *" pointers
 wxString::wxString(const void *pStart, const void *pEnd)
 {

-  InitWith((const char *)pStart, 0,
-           (const char *)pEnd - (const char *)pStart);
+  InitWith((const wxChar *)pStart, 0,
+           (const wxChar *)pEnd - (const wxChar *)pStart);

 }
 
 #endif  //std::string compatibility
 
 }
 
 #endif  //std::string compatibility
 

-// from wide string
-wxString::wxString(const wchar_t *pwz)
+#if wxUSE_UNICODE
+
+// from multibyte string
+wxString::wxString(const char *psz, wxMBConv& conv, size_t nLength)

 {
   // first get necessary size
 {
   // first get necessary size

+  size_t nLen = psz ? conv.MB2WC((wchar_t *) NULL, psz, 0) : 0;

 
 

-  // NB: GNU libc5 wcstombs() is completely broken, don't use it (it doesn't
-  //     honor the 3rd parameter, thus it will happily crash here).
-#ifdef wxUSE_WCSRTOMBS
-  // don't know if it's really needed (or if we can pass NULL), but better safe
-  // than quick
-  mbstate_t mbstate;  
-  size_t nLen = wcsrtombs((char *) NULL, &pwz, 0, &mbstate);
-#else  // !GNU libc
-  size_t nLen = wcstombs((char *) NULL, pwz, 0);
-#endif // GNU
+  // nLength is number of *Unicode* characters here!
+  if ((nLen != (size_t)-1) && (nLen > nLength))
+    nLen = nLength;

 
   // empty?
 
   // empty?

-  if ( nLen != 0 ) {
+  if ( (nLen != 0) && (nLen != (size_t)-1) ) {

     AllocBuffer(nLen);
     AllocBuffer(nLen);

-    wcstombs(m_pchData, pwz, nLen);
+    conv.MB2WC(m_pchData, psz, nLen);

   }
   else {
     Init();
   }
 }
 
   }
   else {
     Init();
   }
 }
 

+#else // ANSI
+
+#if wxUSE_WCHAR_T
+// from wide string
+wxString::wxString(const wchar_t *pwz, wxMBConv& conv)
+{
+  // first get necessary size
+  size_t nLen = pwz ? conv.WC2MB((char *) NULL, pwz, 0) : 0;
+
+  // empty?
+  if ( (nLen != 0) && (nLen != (size_t)-1) ) {
+    AllocBuffer(nLen);
+    conv.WC2MB(m_pchData, pwz, nLen);
+  }
+  else {
+    Init();
+  }
+}
+#endif // wxUSE_WCHAR_T
+
+#endif // Unicode/ANSI
+

 // ---------------------------------------------------------------------------
 // memory allocation
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // memory allocation
 // ---------------------------------------------------------------------------


@@ -255,8 +368,13 @@ wxString::wxString(const wchar_t *pwz)
 // allocates memory needed to store a C string of length nLen
 void wxString::AllocBuffer(size_t nLen)
 {
 // allocates memory needed to store a C string of length nLen
 void wxString::AllocBuffer(size_t nLen)
 {

-  wxASSERT( nLen >  0         );    //
-  wxASSERT( nLen <= INT_MAX-1 );    // max size (enough room for 1 extra)
+  // allocating 0 sized buffer doesn't make sense, all empty strings should
+  // reuse g_strEmpty
+  wxASSERT( nLen >  0 );
+
+  // make sure that we don't overflow
+  wxASSERT( nLen < (INT_MAX / sizeof(wxChar)) -
+                   (sizeof(wxStringData) + EXTRA_ALLOC + 1) );

 
   STATISTICS_ADD(Length, nLen);
 
 
   STATISTICS_ADD(Length, nLen);
 


@@ -264,12 +382,12 @@ void wxString::AllocBuffer(size_t nLen)
   // 1) one extra character for '\0' termination
   // 2) sizeof(wxStringData) for housekeeping info
   wxStringData* pData = (wxStringData*)
   // 1) one extra character for '\0' termination
   // 2) sizeof(wxStringData) for housekeeping info
   wxStringData* pData = (wxStringData*)

-    malloc(sizeof(wxStringData) + (nLen + EXTRA_ALLOC + 1)*sizeof(char));
+    malloc(sizeof(wxStringData) + (nLen + EXTRA_ALLOC + 1)*sizeof(wxChar));

   pData->nRefs        = 1;
   pData->nDataLength  = nLen;
   pData->nAllocLength = nLen + EXTRA_ALLOC;
   m_pchData           = pData->data();  // data starts after wxStringData
   pData->nRefs        = 1;
   pData->nDataLength  = nLen;
   pData->nAllocLength = nLen + EXTRA_ALLOC;
   m_pchData           = pData->data();  // data starts after wxStringData

-  m_pchData[nLen]     = '\0';
+  m_pchData[nLen]     = wxT('\0');

 }
 
 // must be called before changing this string
 }
 
 // must be called before changing this string


@@ -281,7 +399,7 @@ void wxString::CopyBeforeWrite()
     pData->Unlock();                // memory not freed because shared
     size_t nLen = pData->nDataLength;
     AllocBuffer(nLen);
     pData->Unlock();                // memory not freed because shared
     size_t nLen = pData->nDataLength;
     AllocBuffer(nLen);

-    memcpy(m_pchData, pData->data(), nLen*sizeof(char));
+    memcpy(m_pchData, pData->data(), nLen*sizeof(wxChar));

   }
 
   wxASSERT( !GetStringData()->IsShared() );  // we must be the only owner
   }
 
   wxASSERT( !GetStringData()->IsShared() );  // we must be the only owner


@@ -294,11 +412,37 @@ void wxString::AllocBeforeWrite(size_t nLen)
 
   // must not share string and must have enough space
   wxStringData* pData = GetStringData();
 
   // must not share string and must have enough space
   wxStringData* pData = GetStringData();

-  if ( pData->IsShared() || (nLen > pData->nAllocLength) ) {
+  if ( pData->IsShared() || pData->IsEmpty() ) {

     // can't work with old buffer, get new one
     pData->Unlock();
     AllocBuffer(nLen);
   }
     // can't work with old buffer, get new one
     pData->Unlock();
     AllocBuffer(nLen);
   }

+  else {
+    if ( nLen > pData->nAllocLength ) {
+      // realloc the buffer instead of calling malloc() again, this is more
+      // efficient
+      STATISTICS_ADD(Length, nLen);
+
+      nLen += EXTRA_ALLOC;
+
+      wxStringData *pDataOld = pData;
+      pData = (wxStringData*)
+          realloc(pData, sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar));
+      if ( !pData ) {
+        // out of memory
+        free(pDataOld);
+
+        // FIXME we're going to crash...
+        return;
+      }
+
+      pData->nAllocLength = nLen;
+      m_pchData = pData->data();
+    }
+
+    // now we have enough space, just update the string length
+    pData->nDataLength = nLen;
+  }

 
   wxASSERT( !GetStringData()->IsShared() );  // we must be the only owner
 }
 
   wxASSERT( !GetStringData()->IsShared() );  // we must be the only owner
 }


@@ -312,27 +456,31 @@ void wxString::Alloc(size_t nLen)
       nLen += EXTRA_ALLOC;
 
       wxStringData* pData = (wxStringData*)
       nLen += EXTRA_ALLOC;
 
       wxStringData* pData = (wxStringData*)

-        malloc(sizeof(wxStringData) + (nLen + 1)*sizeof(char));
+        malloc(sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar));

       pData->nRefs = 1;
       pData->nDataLength = 0;
       pData->nAllocLength = nLen;
       m_pchData = pData->data();  // data starts after wxStringData
       pData->nRefs = 1;
       pData->nDataLength = 0;
       pData->nAllocLength = nLen;
       m_pchData = pData->data();  // data starts after wxStringData

-      m_pchData[0u] = '\0';
+      m_pchData[0u] = wxT('\0');

     }
     else if ( pData->IsShared() ) {
       pData->Unlock();                // memory not freed because shared
       size_t nOldLen = pData->nDataLength;
       AllocBuffer(nLen);
     }
     else if ( pData->IsShared() ) {
       pData->Unlock();                // memory not freed because shared
       size_t nOldLen = pData->nDataLength;
       AllocBuffer(nLen);

-      memcpy(m_pchData, pData->data(), nOldLen*sizeof(char));
+      memcpy(m_pchData, pData->data(), nOldLen*sizeof(wxChar));

     }
     else {
       nLen += EXTRA_ALLOC;
 
     }
     else {
       nLen += EXTRA_ALLOC;
 

+      wxStringData *pDataOld = pData;

       wxStringData *p = (wxStringData *)
       wxStringData *p = (wxStringData *)

-        realloc(pData, sizeof(wxStringData) + (nLen + 1)*sizeof(char));
+        realloc(pData, sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar));

 
       if ( p == NULL ) {
 
       if ( p == NULL ) {

-        // @@@ what to do on memory error?
+        // don't leak memory
+        free(pDataOld);
+
+        // FIXME what to do on memory error?

         return;
       }
 
         return;
       }
 


@@ -350,19 +498,22 @@ void wxString::Shrink()
 {
   wxStringData *pData = GetStringData();
 
 {
   wxStringData *pData = GetStringData();
 

-  // this variable is unused in release build, so avoid the compiler warning by
-  // just not declaring it
+  // this variable is unused in release build, so avoid the compiler warning
+  // by just not declaring it

 #ifdef __WXDEBUG__
   void *p =
 #endif
 #ifdef __WXDEBUG__
   void *p =
 #endif

-  realloc(pData, sizeof(wxStringData) + (pData->nDataLength + 1)*sizeof(char));
+  realloc(pData, sizeof(wxStringData) + (pData->nDataLength + 1)*sizeof(wxChar));
+
+  // we rely on a reasonable realloc() implementation here - so far I haven't
+  // seen any which wouldn't behave like this

 
   wxASSERT( p != NULL );  // can't free memory?
   wxASSERT( p == pData ); // we're decrementing the size - block shouldn't move!
 }
 
 // get the pointer to writable buffer of (at least) nLen bytes
 
   wxASSERT( p != NULL );  // can't free memory?
   wxASSERT( p == pData ); // we're decrementing the size - block shouldn't move!
 }
 
 // get the pointer to writable buffer of (at least) nLen bytes

-char *wxString::GetWriteBuf(size_t nLen)
+wxChar *wxString::GetWriteBuf(size_t nLen)

 {
   AllocBeforeWrite(nLen);
 
 {
   AllocBeforeWrite(nLen);
 


@@ -375,7 +526,13 @@ char *wxString::GetWriteBuf(size_t nLen)
 // put string back in a reasonable state after GetWriteBuf
 void wxString::UngetWriteBuf()
 {
 // put string back in a reasonable state after GetWriteBuf
 void wxString::UngetWriteBuf()
 {

-  GetStringData()->nDataLength = strlen(m_pchData);
+  GetStringData()->nDataLength = wxStrlen(m_pchData);
+  GetStringData()->Validate(TRUE);
+}
+
+void wxString::UngetWriteBuf(size_t nLen)
+{
+  GetStringData()->nDataLength = nLen;

   GetStringData()->Validate(TRUE);
 }
 
   GetStringData()->Validate(TRUE);
 }
 


@@ -390,16 +547,16 @@ void wxString::UngetWriteBuf()
 // ---------------------------------------------------------------------------
 
 // helper function: does real copy
 // ---------------------------------------------------------------------------
 
 // helper function: does real copy

-void wxString::AssignCopy(size_t nSrcLen, const char *pszSrcData)
+void wxString::AssignCopy(size_t nSrcLen, const wxChar *pszSrcData)

 {
   if ( nSrcLen == 0 ) {
     Reinit();
   }
   else {
     AllocBeforeWrite(nSrcLen);
 {
   if ( nSrcLen == 0 ) {
     Reinit();
   }
   else {
     AllocBeforeWrite(nSrcLen);

-    memcpy(m_pchData, pszSrcData, nSrcLen*sizeof(char));
+    memcpy(m_pchData, pszSrcData, nSrcLen*sizeof(wxChar));

     GetStringData()->nDataLength = nSrcLen;
     GetStringData()->nDataLength = nSrcLen;

-    m_pchData[nSrcLen] = '\0';
+    m_pchData[nSrcLen] = wxT('\0');

   }
 }
 
   }
 }
 


@@ -425,19 +582,21 @@ wxString& wxString::operator=(const wxString& stringSrc)
 }
 
 // assigns a single character
 }
 
 // assigns a single character

-wxString& wxString::operator=(char ch)
+wxString& wxString::operator=(wxChar ch)

 {
   AssignCopy(1, &ch);
   return *this;
 }
 
 // assigns C string
 {
   AssignCopy(1, &ch);
   return *this;
 }
 
 // assigns C string

-wxString& wxString::operator=(const char *psz)
+wxString& wxString::operator=(const wxChar *psz)

 {
 {

-  AssignCopy(Strlen(psz), psz);
+  AssignCopy(wxStrlen(psz), psz);

   return *this;
 }
 
   return *this;
 }
 

+#if !wxUSE_UNICODE
+

 // same as 'signed char' variant
 wxString& wxString::operator=(const unsigned char* psz)
 {
 // same as 'signed char' variant
 wxString& wxString::operator=(const unsigned char* psz)
 {


@@ -445,19 +604,23 @@ wxString& wxString::operator=(const unsigned char* psz)
   return *this;
 }
 
   return *this;
 }
 

+#if wxUSE_WCHAR_T

 wxString& wxString::operator=(const wchar_t *pwz)
 {
   wxString str(pwz);
   *this = str;
   return *this;
 }
 wxString& wxString::operator=(const wchar_t *pwz)
 {
   wxString str(pwz);
   *this = str;
   return *this;
 }

+#endif
+
+#endif

 
 // ---------------------------------------------------------------------------
 // string concatenation
 // ---------------------------------------------------------------------------
 
 // add something to this string
 
 // ---------------------------------------------------------------------------
 // string concatenation
 // ---------------------------------------------------------------------------
 
 // add something to this string

-void wxString::ConcatSelf(int nSrcLen, const char *pszSrcData)
+void wxString::ConcatSelf(int nSrcLen, const wxChar *pszSrcData)

 {
   STATISTICS_ADD(SummandLength, nSrcLen);
 
 {
   STATISTICS_ADD(SummandLength, nSrcLen);
 


@@ -474,7 +637,7 @@ void wxString::ConcatSelf(int nSrcLen, const char *pszSrcData)
       // we have to allocate another buffer
       wxStringData* pOldData = GetStringData();
       AllocBuffer(nNewLen);
       // we have to allocate another buffer
       wxStringData* pOldData = GetStringData();
       AllocBuffer(nNewLen);

-      memcpy(m_pchData, pOldData->data(), nLen*sizeof(char));
+      memcpy(m_pchData, pOldData->data(), nLen*sizeof(wxChar));

       pOldData->Unlock();
     }
     else if ( nNewLen > pData->nAllocLength ) {
       pOldData->Unlock();
     }
     else if ( nNewLen > pData->nAllocLength ) {


@@ -493,9 +656,9 @@ void wxString::ConcatSelf(int nSrcLen, const char *pszSrcData)
     wxASSERT( nNewLen <= GetStringData()->nAllocLength );
 
     // fast concatenation - all is done in our buffer
     wxASSERT( nNewLen <= GetStringData()->nAllocLength );
 
     // fast concatenation - all is done in our buffer

-    memcpy(m_pchData + nLen, pszSrcData, nSrcLen*sizeof(char));
+    memcpy(m_pchData + nLen, pszSrcData, nSrcLen*sizeof(wxChar));

 
 

-    m_pchData[nNewLen] = '\0';              // put terminating '\0'
+    m_pchData[nNewLen] = wxT('\0');          // put terminating '\0'

     GetStringData()->nDataLength = nNewLen; // and fix the length
   }
   //else: the string to append was empty
     GetStringData()->nDataLength = nNewLen; // and fix the length
   }
   //else: the string to append was empty


@@ -519,7 +682,7 @@ wxString operator+(const wxString& string1, const wxString& string2)
   return s;
 }
 
   return s;
 }
 

-wxString operator+(const wxString& string, char ch)
+wxString operator+(const wxString& string, wxChar ch)

 {
   wxASSERT( string.GetStringData()->IsValid() );
 
 {
   wxASSERT( string.GetStringData()->IsValid() );
 


@@ -529,7 +692,7 @@ wxString operator+(const wxString& string, char ch)
   return s;
 }
 
   return s;
 }
 

-wxString operator+(char ch, const wxString& string)
+wxString operator+(wxChar ch, const wxString& string)

 {
   wxASSERT( string.GetStringData()->IsValid() );
 
 {
   wxASSERT( string.GetStringData()->IsValid() );
 


@@ -539,24 +702,24 @@ wxString operator+(char ch, const wxString& string)
   return s;
 }
 
   return s;
 }
 

-wxString operator+(const wxString& string, const char *psz)
+wxString operator+(const wxString& string, const wxChar *psz)

 {
   wxASSERT( string.GetStringData()->IsValid() );
 
   wxString s;
 {
   wxASSERT( string.GetStringData()->IsValid() );
 
   wxString s;

-  s.Alloc(Strlen(psz) + string.Len());
+  s.Alloc(wxStrlen(psz) + string.Len());

   s = string;
   s += psz;
 
   return s;
 }
 
   s = string;
   s += psz;
 
   return s;
 }
 

-wxString operator+(const char *psz, const wxString& string)
+wxString operator+(const wxChar *psz, const wxString& string)

 {
   wxASSERT( string.GetStringData()->IsValid() );
 
   wxString s;
 {
   wxASSERT( string.GetStringData()->IsValid() );
 
   wxString s;

-  s.Alloc(Strlen(psz) + string.Len());
+  s.Alloc(wxStrlen(psz) + string.Len());

   s = psz;
   s += string;
 
   s = psz;
   s += string;
 


@@ -579,7 +742,7 @@ void wxString::AllocCopy(wxString& dest, int nCopyLen, int nCopyIndex) const
   }
   else {
     dest.AllocBuffer(nCopyLen);
   }
   else {
     dest.AllocBuffer(nCopyLen);

-    memcpy(dest.m_pchData, m_pchData + nCopyIndex, nCopyLen*sizeof(char));
+    memcpy(dest.m_pchData, m_pchData + nCopyIndex, nCopyLen*sizeof(wxChar));

   }
 }
 
   }
 }
 


@@ -589,8 +752,8 @@ wxString wxString::Mid(size_t nFirst, size_t nCount) const
   wxStringData *pData = GetStringData();
   size_t nLen = pData->nDataLength;
 
   wxStringData *pData = GetStringData();
   size_t nLen = pData->nDataLength;
 

-  // default value of nCount is STRING_MAXLEN and means "till the end"
-  if ( nCount == STRING_MAXLEN )
+  // default value of nCount is wxSTRING_MAXLEN and means "till the end"
+  if ( nCount == wxSTRING_MAXLEN )

   {
     nCount = nLen - nFirst;
   }
   {
     nCount = nLen - nFirst;
   }


@@ -613,6 +776,35 @@ wxString wxString::Mid(size_t nFirst, size_t nCount) const
   return dest;
 }
 
   return dest;
 }
 

+// check that the tring starts with prefix and return the rest of the string
+// in the provided pointer if it is not NULL, otherwise return FALSE
+bool wxString::StartsWith(const wxChar *prefix, wxString *rest) const
+{
+    wxASSERT_MSG( prefix, _T("invalid parameter in wxString::StartsWith") );
+
+    // first check if the beginning of the string matches the prefix: note
+    // that we don't have to check that we don't run out of this string as
+    // when we reach the terminating NUL, either prefix string ends too (and
+    // then it's ok) or we break out of the loop because there is no match
+    const wxChar *p = c_str();
+    while ( *prefix )
+    {
+        if ( *prefix++ != *p++ )
+        {
+            // no match
+            return FALSE;
+        }
+    }
+
+    if ( rest )
+    {
+        // put the rest of the string into provided pointer
+        *rest = p;
+    }
+
+    return TRUE;
+}
+

 // extract nCount last (rightmost) characters
 wxString wxString::Right(size_t nCount) const
 {
 // extract nCount last (rightmost) characters
 wxString wxString::Right(size_t nCount) const
 {


@@ -626,11 +818,11 @@ wxString wxString::Right(size_t nCount) const
 
 // get all characters after the last occurence of ch
 // (returns the whole string if ch not found)
 
 // get all characters after the last occurence of ch
 // (returns the whole string if ch not found)

-wxString wxString::Right(char ch) const
+wxString wxString::AfterLast(wxChar ch) const

 {
   wxString str;
   int iPos = Find(ch, TRUE);
 {
   wxString str;
   int iPos = Find(ch, TRUE);

-  if ( iPos == NOT_FOUND )
+  if ( iPos == wxNOT_FOUND )

     str = *this;
   else
     str = c_str() + iPos + 1;
     str = *this;
   else
     str = c_str() + iPos + 1;


@@ -651,10 +843,10 @@ wxString wxString::Left(size_t nCount) const
 
 // get all characters before the first occurence of ch
 // (returns the whole string if ch not found)
 
 // get all characters before the first occurence of ch
 // (returns the whole string if ch not found)

-wxString wxString::Left(char ch) const
+wxString wxString::BeforeFirst(wxChar ch) const

 {
   wxString str;
 {
   wxString str;

-  for ( const char *pc = m_pchData; *pc != '\0' && *pc != ch; pc++ )
+  for ( const wxChar *pc = m_pchData; *pc != wxT('\0') && *pc != ch; pc++ )

     str += *pc;
 
   return str;
     str += *pc;
 
   return str;


@@ -662,11 +854,11 @@ wxString wxString::Left(char ch) const
 
 /// get all characters before the last occurence of ch
 /// (returns empty string if ch not found)
 
 /// get all characters before the last occurence of ch
 /// (returns empty string if ch not found)

-wxString wxString::Before(char ch) const
+wxString wxString::BeforeLast(wxChar ch) const

 {
   wxString str;
   int iPos = Find(ch, TRUE);
 {
   wxString str;
   int iPos = Find(ch, TRUE);

-  if ( iPos != NOT_FOUND && iPos != 0 )
+  if ( iPos != wxNOT_FOUND && iPos != 0 )

     str = wxString(c_str(), iPos);
 
   return str;
     str = wxString(c_str(), iPos);
 
   return str;


@@ -674,28 +866,28 @@ wxString wxString::Before(char ch) const
 
 /// get all characters after the first occurence of ch
 /// (returns empty string if ch not found)
 
 /// get all characters after the first occurence of ch
 /// (returns empty string if ch not found)

-wxString wxString::After(char ch) const
+wxString wxString::AfterFirst(wxChar ch) const

 {
   wxString str;
   int iPos = Find(ch);
 {
   wxString str;
   int iPos = Find(ch);

-  if ( iPos != NOT_FOUND )
+  if ( iPos != wxNOT_FOUND )

     str = c_str() + iPos + 1;
 
   return str;
 }
 
 // replace first (or all) occurences of some substring with another one
     str = c_str() + iPos + 1;
 
   return str;
 }
 
 // replace first (or all) occurences of some substring with another one

-size_t wxString::Replace(const char *szOld, const char *szNew, bool bReplaceAll)
+size_t wxString::Replace(const wxChar *szOld, const wxChar *szNew, bool bReplaceAll)

 {
   size_t uiCount = 0;   // count of replacements made
 
 {
   size_t uiCount = 0;   // count of replacements made
 

-  size_t uiOldLen = Strlen(szOld);
+  size_t uiOldLen = wxStrlen(szOld);

 
   wxString strTemp;
 
   wxString strTemp;

-  const char *pCurrent = m_pchData;
-  const char *pSubstr;
-  while ( *pCurrent != '\0' ) {
-    pSubstr = strstr(pCurrent, szOld);
+  const wxChar *pCurrent = m_pchData;
+  const wxChar *pSubstr;
+  while ( *pCurrent != wxT('\0') ) {
+    pSubstr = wxStrstr(pCurrent, szOld);

     if ( pSubstr == NULL ) {
       // strTemp is unused if no replacements were made, so avoid the copy
       if ( uiCount == 0 )
     if ( pSubstr == NULL ) {
       // strTemp is unused if no replacements were made, so avoid the copy
       if ( uiCount == 0 )


@@ -728,7 +920,7 @@ size_t wxString::Replace(const char *szOld, const char *szNew, bool bReplaceAll)
 
 bool wxString::IsAscii() const
 {
 
 bool wxString::IsAscii() const
 {

-  const char *s = (const char*) *this;
+  const wxChar *s = (const wxChar*) *this;

   while(*s){
     if(!isascii(*s)) return(FALSE);
     s++;
   while(*s){
     if(!isascii(*s)) return(FALSE);
     s++;


@@ -738,9 +930,9 @@ bool wxString::IsAscii() const
 
 bool wxString::IsWord() const
 {
 
 bool wxString::IsWord() const
 {

-  const char *s = (const char*) *this;
+  const wxChar *s = (const wxChar*) *this;

   while(*s){
   while(*s){

-    if(!isalpha(*s)) return(FALSE);
+    if(!wxIsalpha(*s)) return(FALSE);

     s++;
   }
   return(TRUE);
     s++;
   }
   return(TRUE);


@@ -748,9 +940,11 @@ bool wxString::IsWord() const
 
 bool wxString::IsNumber() const
 {
 
 bool wxString::IsNumber() const
 {

-  const char *s = (const char*) *this;
+  const wxChar *s = (const wxChar*) *this;
+  if (wxStrlen(s))
+     if ((s[0] == '-') || (s[0] == '+')) s++;

   while(*s){
   while(*s){

-    if(!isdigit(*s)) return(FALSE);
+    if(!wxIsdigit(*s)) return(FALSE);

     s++;
   }
   return(TRUE);
     s++;
   }
   return(TRUE);


@@ -772,8 +966,8 @@ wxString& wxString::MakeUpper()
 {
   CopyBeforeWrite();
 
 {
   CopyBeforeWrite();
 

-  for ( char *p = m_pchData; *p; p++ )
-    *p = (char)toupper(*p);
+  for ( wxChar *p = m_pchData; *p; p++ )
+    *p = (wxChar)wxToupper(*p);

 
   return *this;
 }
 
   return *this;
 }


@@ -782,8 +976,8 @@ wxString& wxString::MakeLower()
 {
   CopyBeforeWrite();
 
 {
   CopyBeforeWrite();
 

-  for ( char *p = m_pchData; *p; p++ )
-    *p = (char)tolower(*p);
+  for ( wxChar *p = m_pchData; *p; p++ )
+    *p = (wxChar)wxTolower(*p);

 
   return *this;
 }
 
   return *this;
 }


@@ -796,10 +990,10 @@ wxString& wxString::MakeLower()
 wxString& wxString::Trim(bool bFromRight)
 {
   // first check if we're going to modify the string at all
 wxString& wxString::Trim(bool bFromRight)
 {
   // first check if we're going to modify the string at all

-  if ( !IsEmpty() && 
-       ( 
-        (bFromRight && isspace(GetChar(Len() - 1))) ||
-        (!bFromRight && isspace(GetChar(0u)))
+  if ( !IsEmpty() &&
+       (
+        (bFromRight && wxIsspace(GetChar(Len() - 1))) ||
+        (!bFromRight && wxIsspace(GetChar(0u)))

        )
      )
   {
        )
      )
   {


@@ -809,24 +1003,24 @@ wxString& wxString::Trim(bool bFromRight)
     if ( bFromRight )
     {
       // find last non-space character
     if ( bFromRight )
     {
       // find last non-space character

-      char *psz = m_pchData + GetStringData()->nDataLength - 1;
-      while ( isspace(*psz) && (psz >= m_pchData) )
+      wxChar *psz = m_pchData + GetStringData()->nDataLength - 1;
+      while ( wxIsspace(*psz) && (psz >= m_pchData) )

         psz--;
 
       // truncate at trailing space start
         psz--;
 
       // truncate at trailing space start

-      *++psz = '\0';
+      *++psz = wxT('\0');

       GetStringData()->nDataLength = psz - m_pchData;
     }
     else
     {
       // find first non-space character
       GetStringData()->nDataLength = psz - m_pchData;
     }
     else
     {
       // find first non-space character

-      const char *psz = m_pchData;
-      while ( isspace(*psz) )
+      const wxChar *psz = m_pchData;
+      while ( wxIsspace(*psz) )

         psz++;
 
       // fix up data and length
         psz++;
 
       // fix up data and length

-      int nDataLength = GetStringData()->nDataLength - (psz - m_pchData);
-      memmove(m_pchData, psz, (nDataLength + 1)*sizeof(char));
+      int nDataLength = GetStringData()->nDataLength - (psz - (const wxChar*) m_pchData);
+      memmove(m_pchData, psz, (nDataLength + 1)*sizeof(wxChar));

       GetStringData()->nDataLength = nDataLength;
     }
   }
       GetStringData()->nDataLength = nDataLength;
     }
   }


@@ -835,7 +1029,7 @@ wxString& wxString::Trim(bool bFromRight)
 }
 
 // adds nCount characters chPad to the string from either side
 }
 
 // adds nCount characters chPad to the string from either side

-wxString& wxString::Pad(size_t nCount, char chPad, bool bFromRight)
+wxString& wxString::Pad(size_t nCount, wxChar chPad, bool bFromRight)

 {
   wxString s(chPad, nCount);
 
 {
   wxString s(chPad, nCount);
 


@@ -853,63 +1047,107 @@ wxString& wxString::Pad(size_t nCount, char chPad, bool bFromRight)
 // truncate the string
 wxString& wxString::Truncate(size_t uiLen)
 {
 // truncate the string
 wxString& wxString::Truncate(size_t uiLen)
 {

-  *(m_pchData + uiLen) = '\0';
-  GetStringData()->nDataLength = uiLen;
+  if ( uiLen < Len() ) {
+    CopyBeforeWrite();
+
+    *(m_pchData + uiLen) = wxT('\0');
+    GetStringData()->nDataLength = uiLen;
+  }
+  //else: nothing to do, string is already short enough

 
   return *this;
 }
 
 // ---------------------------------------------------------------------------
 
   return *this;
 }
 
 // ---------------------------------------------------------------------------

-// finding (return NOT_FOUND if not found and index otherwise)
+// finding (return wxNOT_FOUND if not found and index otherwise)

 // ---------------------------------------------------------------------------
 
 // find a character
 // ---------------------------------------------------------------------------
 
 // find a character

-int wxString::Find(char ch, bool bFromEnd) const
+int wxString::Find(wxChar ch, bool bFromEnd) const

 {
 {

-  const char *psz = bFromEnd ? strrchr(m_pchData, ch) : strchr(m_pchData, ch);
+  const wxChar *psz = bFromEnd ? wxStrrchr(m_pchData, ch) : wxStrchr(m_pchData, ch);

 
 

-  return (psz == NULL) ? NOT_FOUND : psz - m_pchData;
+  return (psz == NULL) ? wxNOT_FOUND : psz - (const wxChar*) m_pchData;

 }
 
 // find a sub-string (like strstr)
 }
 
 // find a sub-string (like strstr)

-int wxString::Find(const char *pszSub) const
+int wxString::Find(const wxChar *pszSub) const

 {
 {

-  const char *psz = strstr(m_pchData, pszSub);
+  const wxChar *psz = wxStrstr(m_pchData, pszSub);

 
 

-  return (psz == NULL) ? NOT_FOUND : psz - m_pchData;
+  return (psz == NULL) ? wxNOT_FOUND : psz - (const wxChar*) m_pchData;

 }
 
 }
 

-// ---------------------------------------------------------------------------
-// stream-like operators
-// ---------------------------------------------------------------------------
-wxString& wxString::operator<<(int i)
+// ----------------------------------------------------------------------------
+// conversion to numbers
+// ----------------------------------------------------------------------------
+
+bool wxString::ToLong(long *val) const

 {
 {

-    wxString res;
-    res.Printf("%d", i);
+    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToLong") );
+
+    const wxChar *start = c_str();
+    wxChar *end;
+    *val = wxStrtol(start, &end, 10);

 
 

-    return (*this) << res;
+    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // string was not empty to start with
+    return !*end && (end != start);

 }
 
 }
 

-wxString& wxString::operator<<(float f)
+bool wxString::ToULong(unsigned long *val) const

 {
 {

-    wxString res;
-    res.Printf("%f", f);
+    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToULong") );

 
 

-    return (*this) << res;
+    const wxChar *start = c_str();
+    wxChar *end;
+    *val = wxStrtoul(start, &end, 10);
+
+    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // string was not empty to start with
+    return !*end && (end != start);

 }
 
 }
 

-wxString& wxString::operator<<(double d)
+bool wxString::ToDouble(double *val) const

 {
 {

-    wxString res;
-    res.Printf("%g", d);
+    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToDouble") );
+
+    const wxChar *start = c_str();
+    wxChar *end;
+    *val = wxStrtod(start, &end);

 
 

-    return (*this) << res;
+    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // string was not empty to start with
+    return !*end && (end != start);

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

-int wxString::Printf(const char *pszFormat, ...)
+
+/* static */
+wxString wxString::Format(const wxChar *pszFormat, ...)
+{
+    va_list argptr;
+    va_start(argptr, pszFormat);
+
+    wxString s;
+    s.PrintfV(pszFormat, argptr);
+
+    va_end(argptr);
+
+    return s;
+}
+
+/* static */
+wxString wxString::FormatV(const wxChar *pszFormat, va_list argptr)
+{
+    wxString s;
+    s.Printf(pszFormat, argptr);
+    return s;
+}
+
+int wxString::Printf(const wxChar *pszFormat, ...)

 {
   va_list argptr;
   va_start(argptr, pszFormat);
 {
   va_list argptr;
   va_start(argptr, pszFormat);


@@ -921,89 +1159,319 @@ int wxString::Printf(const char *pszFormat, ...)
   return iLen;
 }
 
   return iLen;
 }
 

-int wxString::PrintfV(const char* pszFormat, va_list argptr)
+int wxString::PrintfV(const wxChar* pszFormat, va_list argptr)

 {
 {

-#ifdef __WXMSW__
-  #ifdef _MSC_VER
-    #define wxVsprintf     _vsnprintf
-  #endif
-#else // guess that any Unix has snprintf() - feel free to insert additional
-      // platform/compiler tests here if this is not the case for you
-  #define wxVsprintf       vsnprintf
+#if wxUSE_EXPERIMENTAL_PRINTF
+  // the new implementation
+
+  // buffer to avoid dynamic memory allocation each time for small strings
+  char szScratch[1024];
+
+  Reinit();
+  for (size_t n = 0; pszFormat[n]; n++)
+    if (pszFormat[n] == wxT('%')) {
+      static char s_szFlags[256] = "%";
+      size_t flagofs = 1;
+      bool adj_left = FALSE, in_prec = FALSE,
+           prec_dot = FALSE, done = FALSE;
+      int ilen = 0;
+      size_t min_width = 0, max_width = wxSTRING_MAXLEN;
+      do {
+#define CHECK_PREC if (in_prec && !prec_dot) { s_szFlags[flagofs++] = '.'; prec_dot = TRUE; }
+        switch (pszFormat[++n]) {
+        case wxT('\0'):
+          done = TRUE;
+          break;
+        case wxT('%'):
+          *this += wxT('%');
+          done = TRUE;
+          break;
+        case wxT('#'):
+        case wxT('0'):
+        case wxT(' '):
+        case wxT('+'):
+        case wxT('\''):
+          CHECK_PREC
+          s_szFlags[flagofs++] = pszFormat[n];
+          break;
+        case wxT('-'):
+          CHECK_PREC
+          adj_left = TRUE;
+          s_szFlags[flagofs++] = pszFormat[n];
+          break;
+        case wxT('.'):
+          CHECK_PREC
+          in_prec = TRUE;
+          prec_dot = FALSE;
+          max_width = 0;
+          // dot will be auto-added to s_szFlags if non-negative number follows
+          break;
+        case wxT('h'):
+          ilen = -1;
+          CHECK_PREC
+          s_szFlags[flagofs++] = pszFormat[n];
+          break;
+        case wxT('l'):
+          ilen = 1;
+          CHECK_PREC
+          s_szFlags[flagofs++] = pszFormat[n];
+          break;
+        case wxT('q'):
+        case wxT('L'):
+          ilen = 2;
+          CHECK_PREC
+          s_szFlags[flagofs++] = pszFormat[n];
+          break;
+        case wxT('Z'):
+          ilen = 3;
+          CHECK_PREC
+          s_szFlags[flagofs++] = pszFormat[n];
+          break;
+        case wxT('*'):
+          {
+            int len = va_arg(argptr, int);
+            if (in_prec) {
+              if (len<0) break;
+              CHECK_PREC
+              max_width = len;
+            } else {
+              if (len<0) {
+                adj_left = !adj_left;
+                s_szFlags[flagofs++] = '-';
+                len = -len;
+              }
+              min_width = len;
+            }
+            flagofs += ::sprintf(s_szFlags+flagofs,"%d",len);
+          }
+          break;
+        case wxT('1'): case wxT('2'): case wxT('3'):
+        case wxT('4'): case wxT('5'): case wxT('6'):
+        case wxT('7'): case wxT('8'): case wxT('9'):
+          {
+            int len = 0;
+            CHECK_PREC
+            while ((pszFormat[n]>=wxT('0')) && (pszFormat[n]<=wxT('9'))) {
+              s_szFlags[flagofs++] = pszFormat[n];
+              len = len*10 + (pszFormat[n] - wxT('0'));
+              n++;
+            }
+            if (in_prec) max_width = len;
+            else min_width = len;
+            n--; // the main loop pre-increments n again
+          }
+          break;
+        case wxT('d'):
+        case wxT('i'):
+        case wxT('o'):
+        case wxT('u'):
+        case wxT('x'):
+        case wxT('X'):
+          CHECK_PREC
+          s_szFlags[flagofs++] = pszFormat[n];
+          s_szFlags[flagofs] = '\0';
+          if (ilen == 0 ) {
+            int val = va_arg(argptr, int);
+            ::sprintf(szScratch, s_szFlags, val);
+          }
+          else if (ilen == -1) {
+            short int val = va_arg(argptr, short int);
+            ::sprintf(szScratch, s_szFlags, val);
+          }
+          else if (ilen == 1) {
+            long int val = va_arg(argptr, long int);
+            ::sprintf(szScratch, s_szFlags, val);
+          }
+          else if (ilen == 2) {
+#if SIZEOF_LONG_LONG
+            long long int val = va_arg(argptr, long long int);
+            ::sprintf(szScratch, s_szFlags, val);
+#else
+            long int val = va_arg(argptr, long int);
+            ::sprintf(szScratch, s_szFlags, val);

 #endif
 #endif

-  
-#ifndef wxVsprintf
-  #pragma message("Using sprintf() because no snprintf()-like function defined")
-  #define wxVsprintf vsprintf
+          }
+          else if (ilen == 3) {
+            size_t val = va_arg(argptr, size_t);
+            ::sprintf(szScratch, s_szFlags, val);
+          }
+          *this += wxString(szScratch);
+          done = TRUE;
+          break;
+        case wxT('e'):
+        case wxT('E'):
+        case wxT('f'):
+        case wxT('g'):
+        case wxT('G'):
+          CHECK_PREC
+          s_szFlags[flagofs++] = pszFormat[n];
+          s_szFlags[flagofs] = '\0';
+          if (ilen == 2) {
+            long double val = va_arg(argptr, long double);
+            ::sprintf(szScratch, s_szFlags, val);
+          } else {
+            double val = va_arg(argptr, double);
+            ::sprintf(szScratch, s_szFlags, val);
+          }
+          *this += wxString(szScratch);
+          done = TRUE;
+          break;
+        case wxT('p'):
+          {
+            void *val = va_arg(argptr, void *);
+            CHECK_PREC
+            s_szFlags[flagofs++] = pszFormat[n];
+            s_szFlags[flagofs] = '\0';
+            ::sprintf(szScratch, s_szFlags, val);
+            *this += wxString(szScratch);
+            done = TRUE;
+          }
+          break;
+        case wxT('c'):
+          {
+            wxChar val = va_arg(argptr, int);
+            // we don't need to honor padding here, do we?
+            *this += val;
+            done = TRUE;
+          }
+          break;
+        case wxT('s'):
+          if (ilen == -1) {
+            // wx extension: we'll let %hs mean non-Unicode strings
+            char *val = va_arg(argptr, char *);
+#if wxUSE_UNICODE
+            // ASCII->Unicode constructor handles max_width right
+            wxString s(val, wxConvLibc, max_width);
+#else
+            size_t len = wxSTRING_MAXLEN;
+            if (val) {
+              for (len = 0; val[len] && (len<max_width); len++);
+            } else val = wxT("(null)");
+            wxString s(val, len);

 #endif
 #endif

+            if (s.Len() < min_width)
+              s.Pad(min_width - s.Len(), wxT(' '), adj_left);
+            *this += s;
+          } else {
+            wxChar *val = va_arg(argptr, wxChar *);
+            size_t len = wxSTRING_MAXLEN;
+            if (val) {
+              for (len = 0; val[len] && (len<max_width); len++);
+            } else val = wxT("(null)");
+            wxString s(val, len);
+            if (s.Len() < min_width)
+              s.Pad(min_width - s.Len(), wxT(' '), adj_left);
+            *this += s;
+          }
+          done = TRUE;
+          break;
+        case wxT('n'):
+          if (ilen == 0) {
+            int *val = va_arg(argptr, int *);
+            *val = Len();
+          }
+          else if (ilen == -1) {
+            short int *val = va_arg(argptr, short int *);
+            *val = Len();
+          }
+          else if (ilen >= 1) {
+            long int *val = va_arg(argptr, long int *);
+            *val = Len();
+          }
+          done = TRUE;
+          break;
+        default:
+          if (wxIsalpha(pszFormat[n]))
+            // probably some flag not taken care of here yet
+            s_szFlags[flagofs++] = pszFormat[n];
+          else {
+            // bad format
+            *this += wxT('%'); // just to pass the glibc tst-printf.c
+            n--;
+            done = TRUE;
+          }
+          break;
+        }
+#undef CHECK_PREC
+      } while (!done);
+    } else *this += pszFormat[n];

 
 

-  // static buffer to avoid dynamic memory allocation each time
-  static char s_szScratch[1024];
-
-  int iLen = wxVsprintf(s_szScratch, WXSIZEOF(s_szScratch), pszFormat, argptr);
-  char *buffer;
-  if ( (size_t)iLen < WXSIZEOF(s_szScratch) ) {
-    buffer = s_szScratch;
+#else
+  // buffer to avoid dynamic memory allocation each time for small strings
+  char szScratch[1024];
+
+  // NB: wxVsnprintf() may return either less than the buffer size or -1 if
+  //     there is not enough place depending on implementation
+  int iLen = wxVsnprintfA(szScratch, WXSIZEOF(szScratch), pszFormat, argptr);
+  if ( iLen != -1 ) {
+    // the whole string is in szScratch
+    *this = szScratch;

   }
   else {
   }
   else {

-      int size = WXSIZEOF(s_szScratch) * 2;
-      buffer = (char *)malloc(size);
-      while ( buffer != NULL ) {
-          iLen = wxVsprintf(buffer, WXSIZEOF(s_szScratch), pszFormat, argptr);
-          if ( iLen < size ) {
+      bool outOfMemory = FALSE;
+      int size = 2*WXSIZEOF(szScratch);
+      while ( !outOfMemory ) {
+          char *buf = GetWriteBuf(size);
+          if ( buf )
+            iLen = wxVsnprintfA(buf, size, pszFormat, argptr);
+          else
+            outOfMemory = TRUE;
+
+          UngetWriteBuf();
+
+          if ( iLen != -1 ) {

               // ok, there was enough space
               break;
           }
 
           // still not enough, double it again
               // ok, there was enough space
               break;
           }
 
           // still not enough, double it again

-          buffer = (char *)realloc(buffer, size *= 2);
+          size *= 2;

       }
 
       }
 

-      if ( !buffer ) {
+      if ( outOfMemory ) {

           // out of memory
           return -1;
       }
   }
           // out of memory
           return -1;
       }
   }

+#endif // wxUSE_EXPERIMENTAL_PRINTF/!wxUSE_EXPERIMENTAL_PRINTF

 
 

-  AllocBeforeWrite(iLen);
-  strcpy(m_pchData, buffer);
-
-  if ( buffer != s_szScratch )
-      free(buffer);
-
-  return iLen;
+  return Len();

 }
 
 // ----------------------------------------------------------------------------
 // misc other operations
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------
 // misc other operations
 // ----------------------------------------------------------------------------

-bool wxString::Matches(const char *pszMask) const
+
+// returns TRUE if the string matches the pattern which may contain '*' and
+// '?' metacharacters (as usual, '?' matches any character and '*' any number
+// of them)
+bool wxString::Matches(const wxChar *pszMask) const

 {
   // check char by char
 {
   // check char by char

-  const char *pszTxt;
-  for ( pszTxt = c_str(); *pszMask != '\0'; pszMask++, pszTxt++ ) {
+  const wxChar *pszTxt;
+  for ( pszTxt = c_str(); *pszMask != wxT('\0'); pszMask++, pszTxt++ ) {

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

-      case '?':
-        if ( *pszTxt == '\0' )
+      case wxT('?'):
+        if ( *pszTxt == wxT('\0') )

           return FALSE;
 
           return FALSE;
 

-        pszTxt++;
-        pszMask++;
+        // pszText and pszMask will be incremented in the loop statement
+

         break;
 
         break;
 

-      case '*':
+      case wxT('*'):

         {
           // ignore special chars immediately following this one
         {
           // ignore special chars immediately following this one

-          while ( *pszMask == '*' || *pszMask == '?' )
+          while ( *pszMask == wxT('*') || *pszMask == wxT('?') )

             pszMask++;
 
           // if there is nothing more, match
             pszMask++;
 
           // if there is nothing more, match

-          if ( *pszMask == '\0' )
+          if ( *pszMask == wxT('\0') )

             return TRUE;
 
           // are there any other metacharacters in the mask?
           size_t uiLenMask;
             return TRUE;
 
           // are there any other metacharacters in the mask?
           size_t uiLenMask;

-          const char *pEndMask = strpbrk(pszMask, "*?");
+          const wxChar *pEndMask = wxStrpbrk(pszMask, wxT("*?"));

 
           if ( pEndMask != NULL ) {
             // we have to match the string between two metachars
 
           if ( pEndMask != NULL ) {
             // we have to match the string between two metachars


@@ -1011,11 +1479,11 @@ bool wxString::Matches(const char *pszMask) const
           }
           else {
             // we have to match the remainder of the string
           }
           else {
             // we have to match the remainder of the string

-            uiLenMask = strlen(pszMask);
+            uiLenMask = wxStrlen(pszMask);

           }
 
           wxString strToMatch(pszMask, uiLenMask);
           }
 
           wxString strToMatch(pszMask, uiLenMask);

-          const char* pMatch = strstr(pszTxt, strToMatch);
+          const wxChar* pMatch = wxStrstr(pszTxt, strToMatch);

           if ( pMatch == NULL )
             return FALSE;
 
           if ( pMatch == NULL )
             return FALSE;
 


@@ -1033,13 +1501,68 @@ bool wxString::Matches(const char *pszMask) const
   }
 
   // match only if nothing left
   }
 
   // match only if nothing left

-  return *pszTxt == '\0';
+  return *pszTxt == wxT('\0');
+}
+
+// Count the number of chars
+int wxString::Freq(wxChar ch) const
+{
+    int count = 0;
+    int len = Len();
+    for (int i = 0; i < len; i++)
+    {
+        if (GetChar(i) == ch)
+            count ++;
+    }
+    return count;

 }
 
 }
 

+// convert to upper case, return the copy of the string
+wxString wxString::Upper() const
+{ wxString s(*this); return s.MakeUpper(); }
+
+// convert to lower case, return the copy of the string
+wxString wxString::Lower() const { wxString s(*this); return s.MakeLower(); }
+
+int wxString::sprintf(const wxChar *pszFormat, ...)
+  {
+    va_list argptr;
+    va_start(argptr, pszFormat);
+    int iLen = PrintfV(pszFormat, argptr);
+    va_end(argptr);
+    return iLen;
+  }
+

 // ---------------------------------------------------------------------------
 // standard C++ library string functions
 // ---------------------------------------------------------------------------
 // ---------------------------------------------------------------------------
 // standard C++ library string functions
 // ---------------------------------------------------------------------------

-#ifdef  STD_STRING_COMPATIBILITY
+
+#ifdef  wxSTD_STRING_COMPATIBILITY
+
+void wxString::resize(size_t nSize, wxChar ch)
+{
+    size_t len = length();
+
+    if ( nSize < len )
+    {
+        Truncate(nSize);
+    }
+    else if ( nSize > len )
+    {
+        *this += wxString(ch, len - nSize);
+    }
+    //else: we have exactly the specified length, nothing to do
+}
+
+void wxString::swap(wxString& str)
+{
+    // this is slightly less efficient than fiddling with m_pchData directly,
+    // but it is still quite efficient as we don't copy the string here because
+    // ref count always stays positive
+    wxString tmp = str;
+    str = *this;
+    *this = str;
+}

 
 wxString& wxString::insert(size_t nPos, const wxString& str)
 {
 
 wxString& wxString::insert(size_t nPos, const wxString& str)
 {


@@ -1048,10 +1571,10 @@ wxString& wxString::insert(size_t nPos, const wxString& str)
 
   if ( !str.IsEmpty() ) {
     wxString strTmp;
 
   if ( !str.IsEmpty() ) {
     wxString strTmp;

-    char *pc = strTmp.GetWriteBuf(Len() + str.Len());
-    strncpy(pc, c_str(), nPos);
-    strcpy(pc + nPos, str);
-    strcpy(pc + nPos + str.Len(), c_str() + nPos);
+    wxChar *pc = strTmp.GetWriteBuf(Len() + str.Len());
+    wxStrncpy(pc, c_str(), nPos);
+    wxStrcpy(pc + nPos, str);
+    wxStrcpy(pc + nPos + str.Len(), c_str() + nPos);

     strTmp.UngetWriteBuf();
     *this = strTmp;
   }
     strTmp.UngetWriteBuf();
     *this = strTmp;
   }


@@ -1064,37 +1587,40 @@ size_t wxString::find(const wxString& str, size_t nStart) const
   wxASSERT( str.GetStringData()->IsValid() );
   wxASSERT( nStart <= Len() );
 
   wxASSERT( str.GetStringData()->IsValid() );
   wxASSERT( nStart <= Len() );
 

-  const char *p = strstr(c_str() + nStart, str);
+  const wxChar *p = wxStrstr(c_str() + nStart, str);

 
   return p == NULL ? npos : p - c_str();
 }
 
 // VC++ 1.5 can't cope with the default argument in the header.
 
   return p == NULL ? npos : p - c_str();
 }
 
 // VC++ 1.5 can't cope with the default argument in the header.

-#if ! (defined(_MSC_VER) && !defined(__WIN32__))
-size_t wxString::find(const char* sz, size_t nStart, size_t n) const
+#if !defined(__VISUALC__) || defined(__WIN32__)
+size_t wxString::find(const wxChar* sz, size_t nStart, size_t n) const

 {
 {

-  return find(wxString(sz, n == npos ? 0 : n), nStart);
+  return find(wxString(sz, n), nStart);

 }
 }

-#endif
+#endif // VC++ 1.5

 
 

-size_t wxString::find(char ch, size_t nStart) const
+// Gives a duplicate symbol (presumably a case-insensitivity problem)
+#if !defined(__BORLANDC__)
+size_t wxString::find(wxChar ch, size_t nStart) const

 {
   wxASSERT( nStart <= Len() );
 
 {
   wxASSERT( nStart <= Len() );
 

-  const char *p = strchr(c_str() + nStart, ch);
+  const wxChar *p = wxStrchr(c_str() + nStart, ch);

 
   return p == NULL ? npos : p - c_str();
 }
 
   return p == NULL ? npos : p - c_str();
 }

+#endif

 
 size_t wxString::rfind(const wxString& str, size_t nStart) const
 {
   wxASSERT( str.GetStringData()->IsValid() );
   wxASSERT( nStart <= Len() );
 
 
 size_t wxString::rfind(const wxString& str, size_t nStart) const
 {
   wxASSERT( str.GetStringData()->IsValid() );
   wxASSERT( nStart <= Len() );
 

-  // # could be quicker than that
-  const char *p = c_str() + (nStart == npos ? Len() : nStart);
+  // TODO could be made much quicker than that
+  const wxChar *p = c_str() + (nStart == npos ? Len() : nStart);

   while ( p >= c_str() + str.Len() ) {
   while ( p >= c_str() + str.Len() ) {

-    if ( strncmp(p - str.Len(), str, str.Len()) == 0 )
+    if ( wxStrncmp(p - str.Len(), str, str.Len()) == 0 )

       return p - str.Len() - c_str();
     p--;
   }
       return p - str.Len() - c_str();
     p--;
   }


@@ -1103,31 +1629,132 @@ size_t wxString::rfind(const wxString& str, size_t nStart) const
 }
 
 // VC++ 1.5 can't cope with the default argument in the header.
 }
 
 // VC++ 1.5 can't cope with the default argument in the header.

-#if ! (defined(_MSC_VER) && !defined(__WIN32__))
-size_t wxString::rfind(const char* sz, size_t nStart, size_t n) const
+#if !defined(__VISUALC__) || defined(__WIN32__)
+size_t wxString::rfind(const wxChar* sz, size_t nStart, size_t n) const

 {
 {

-  return rfind(wxString(sz, n == npos ? 0 : n), nStart);
+    return rfind(wxString(sz, n == npos ? 0 : n), nStart);

 }
 
 }
 

-size_t wxString::rfind(char ch, size_t nStart) const
+size_t wxString::rfind(wxChar ch, size_t nStart) const

 {
 {

-  wxASSERT( nStart <= Len() );
+    if ( nStart == npos )
+    {
+        nStart = Len();
+    }
+    else
+    {
+        wxASSERT( nStart <= Len() );
+    }

 
 

-  const char *p = strrchr(c_str() + nStart, ch);
+    const wxChar *p = wxStrrchr(c_str(), ch);

 
 

-  return p == NULL ? npos : p - c_str();
+    if ( p == NULL )
+        return npos;
+
+    size_t result = p - c_str();
+    return ( result > nStart ) ? npos : result;

 }
 }

-#endif
+#endif // VC++ 1.5
+
+size_t wxString::find_first_of(const wxChar* sz, size_t nStart) const
+{
+    const wxChar *start = c_str() + nStart;
+    const wxChar *firstOf = wxStrpbrk(start, sz);
+    if ( firstOf )
+        return firstOf - c_str();
+    else
+        return npos;
+}
+
+size_t wxString::find_last_of(const wxChar* sz, size_t nStart) const
+{
+    if ( nStart == npos )
+    {
+        nStart = Len();
+    }
+    else
+    {
+        wxASSERT( nStart <= Len() );
+    }
+
+    for ( const wxChar *p = c_str() + length() - 1; p >= c_str(); p-- )
+    {
+        if ( wxStrchr(sz, *p) )
+            return p - c_str();
+    }
+
+    return npos;
+}
+
+size_t wxString::find_first_not_of(const wxChar* sz, size_t nStart) const
+{
+    if ( nStart == npos )
+    {
+        nStart = Len();
+    }
+    else
+    {
+        wxASSERT( nStart <= Len() );
+    }

 
 

-wxString wxString::substr(size_t nStart, size_t nLen) const
+    size_t nAccept = wxStrspn(c_str() + nStart, sz);
+    if ( nAccept >= length() - nStart )
+        return npos;
+    else
+        return nAccept;
+}
+
+size_t wxString::find_first_not_of(wxChar ch, size_t nStart) const

 {
 {

-  // npos means 'take all'
-  if ( nLen == npos )
-    nLen = 0;
+    wxASSERT( nStart <= Len() );
+
+    for ( const wxChar *p = c_str() + nStart; *p; p++ )
+    {
+        if ( *p != ch )
+            return p - c_str();
+    }
+
+    return npos;
+}
+
+size_t wxString::find_last_not_of(const wxChar* sz, size_t nStart) const
+{
+    if ( nStart == npos )
+    {
+        nStart = Len();
+    }
+    else
+    {
+        wxASSERT( nStart <= Len() );
+    }
+
+    for ( const wxChar *p = c_str() + nStart - 1; p >= c_str(); p-- )
+    {
+        if ( !wxStrchr(sz, *p) )
+            return p - c_str();
+    }
+
+    return npos;
+}
+
+size_t wxString::find_last_not_of(wxChar ch, size_t nStart) const
+{
+    if ( nStart == npos )
+    {
+        nStart = Len();
+    }
+    else
+    {
+        wxASSERT( nStart <= Len() );
+    }

 
 

-  wxASSERT( nStart + nLen <= Len() );
+    for ( const wxChar *p = c_str() + nStart - 1; p >= c_str(); p-- )
+    {
+        if ( *p != ch )
+            return p - c_str();
+    }

 
 

-  return wxString(c_str() + nStart, nLen == npos ? 0 : nLen);
+    return npos;

 }
 
 wxString& wxString::erase(size_t nStart, size_t nLen)
 }
 
 wxString& wxString::erase(size_t nStart, size_t nLen)


@@ -1143,21 +1770,23 @@ wxString& wxString::erase(size_t nStart, size_t nLen)
   return *this;
 }
 
   return *this;
 }
 

-wxString& wxString::replace(size_t nStart, size_t nLen, const char *sz)
+wxString& wxString::replace(size_t nStart, size_t nLen, const wxChar *sz)

 {
 {

-  wxASSERT( nStart + nLen <= Strlen(sz) );
+  wxASSERT_MSG( nStart + nLen <= Len(),
+                _T("index out of bounds in wxString::replace") );

 
   wxString strTmp;
 
   wxString strTmp;

+  strTmp.Alloc(Len());      // micro optimisation to avoid multiple mem allocs
+

   if ( nStart != 0 )
     strTmp.append(c_str(), nStart);
   if ( nStart != 0 )
     strTmp.append(c_str(), nStart);

-  strTmp += sz;
-  strTmp.append(c_str() + nStart + nLen);
+  strTmp << sz << c_str() + nStart + nLen;

 
   *this = strTmp;
   return *this;
 }
 
 
   *this = strTmp;
   return *this;
 }
 

-wxString& wxString::replace(size_t nStart, size_t nLen, size_t nCount, char ch)
+wxString& wxString::replace(size_t nStart, size_t nLen, size_t nCount, wxChar ch)

 {
   return replace(nStart, nLen, wxString(ch, nCount));
 }
 {
   return replace(nStart, nLen, wxString(ch, nCount));
 }


@@ -1169,7 +1798,7 @@ wxString& wxString::replace(size_t nStart, size_t nLen,
 }
 
 wxString& wxString::replace(size_t nStart, size_t nLen,
 }
 
 wxString& wxString::replace(size_t nStart, size_t nLen,

-                        const char* sz, size_t nCount)
+                        const wxChar* sz, size_t nCount)

 {
   return replace(nStart, nLen, wxString(sz, nCount));
 }
 {
   return replace(nStart, nLen, wxString(sz, nCount));
 }


@@ -1189,11 +1818,12 @@ wxString& wxString::replace(size_t nStart, size_t nLen,
 #define   STRING(p)   ((wxString *)(&(p)))
 
 // ctor
 #define   STRING(p)   ((wxString *)(&(p)))
 
 // ctor

-wxArrayString::wxArrayString()
+wxArrayString::wxArrayString(bool autoSort)

 {
   m_nSize  =
   m_nCount = 0;
 {
   m_nSize  =
   m_nCount = 0;

-  m_pItems = (char **) NULL;
+  m_pItems = (wxChar **) NULL;
+  m_autoSort = autoSort;

 }
 
 // copy ctor
 }
 
 // copy ctor


@@ -1201,7 +1831,8 @@ wxArrayString::wxArrayString(const wxArrayString& src)
 {
   m_nSize  =
   m_nCount = 0;
 {
   m_nSize  =
   m_nCount = 0;

-  m_pItems = (char **) NULL;
+  m_pItems = (wxChar **) NULL;
+  m_autoSort = src.m_autoSort;

 
   *this = src;
 }
 
   *this = src;
 }


@@ -1212,18 +1843,18 @@ wxArrayString& wxArrayString::operator=(const wxArrayString& src)
   if ( m_nSize > 0 )
     Clear();
 
   if ( m_nSize > 0 )
     Clear();
 

+  Copy(src);
+
+  return *this;
+}
+
+void wxArrayString::Copy(const wxArrayString& src)
+{

   if ( src.m_nCount > ARRAY_DEFAULT_INITIAL_SIZE )
     Alloc(src.m_nCount);
 
   if ( src.m_nCount > ARRAY_DEFAULT_INITIAL_SIZE )
     Alloc(src.m_nCount);
 

-  // we can't just copy the pointers here because otherwise we would share
-  // the strings with another array

   for ( size_t n = 0; n < src.m_nCount; n++ )
     Add(src[n]);
   for ( size_t n = 0; n < src.m_nCount; n++ )
     Add(src[n]);

-
-  if ( m_nCount != 0 )
-    memcpy(m_pItems, src.m_pItems, m_nCount*sizeof(char *));
-
-  return *this;

 }
 
 // grow the array
 }
 
 // grow the array


@@ -1234,12 +1865,17 @@ void wxArrayString::Grow()
     if( m_nSize == 0 ) {
       // was empty, alloc some memory
       m_nSize = ARRAY_DEFAULT_INITIAL_SIZE;
     if( m_nSize == 0 ) {
       // was empty, alloc some memory
       m_nSize = ARRAY_DEFAULT_INITIAL_SIZE;

-      m_pItems = new char *[m_nSize];
+      m_pItems = new wxChar *[m_nSize];

     }
     else {
       // otherwise when it's called for the first time, nIncrement would be 0
       // and the array would never be expanded
     }
     else {
       // otherwise when it's called for the first time, nIncrement would be 0
       // and the array would never be expanded

+#if defined(__VISAGECPP__) && defined(__WXDEBUG__)
+      int array_size = ARRAY_DEFAULT_INITIAL_SIZE;
+      wxASSERT( array_size != 0 );
+#else

       wxASSERT( ARRAY_DEFAULT_INITIAL_SIZE != 0 );
       wxASSERT( ARRAY_DEFAULT_INITIAL_SIZE != 0 );

+#endif

 
       // add 50% but not too much
       size_t nIncrement = m_nSize < ARRAY_DEFAULT_INITIAL_SIZE
 
       // add 50% but not too much
       size_t nIncrement = m_nSize < ARRAY_DEFAULT_INITIAL_SIZE


@@ -1247,10 +1883,10 @@ void wxArrayString::Grow()
       if ( nIncrement > ARRAY_MAXSIZE_INCREMENT )
         nIncrement = ARRAY_MAXSIZE_INCREMENT;
       m_nSize += nIncrement;
       if ( nIncrement > ARRAY_MAXSIZE_INCREMENT )
         nIncrement = ARRAY_MAXSIZE_INCREMENT;
       m_nSize += nIncrement;

-      char **pNew = new char *[m_nSize];
+      wxChar **pNew = new wxChar *[m_nSize];

 
       // copy data to new location
 
       // copy data to new location

-      memcpy(pNew, m_pItems, m_nCount*sizeof(char *));
+      memcpy(pNew, m_pItems, m_nCount*sizeof(wxChar *));

 
       // delete old memory (but do not release the strings!)
       wxDELETEA(m_pItems);
 
       // delete old memory (but do not release the strings!)
       wxDELETEA(m_pItems);


@@ -1303,46 +1939,119 @@ void wxArrayString::Alloc(size_t nSize)
   if ( nSize > m_nSize ) {
     Free();
     wxDELETEA(m_pItems);
   if ( nSize > m_nSize ) {
     Free();
     wxDELETEA(m_pItems);

-    m_pItems = new char *[nSize];
+    m_pItems = new wxChar *[nSize];

     m_nSize  = nSize;
   }
 
   m_nCount = 0;
 }
 
     m_nSize  = nSize;
   }
 
   m_nCount = 0;
 }
 

-// searches the array for an item (forward or backwards)
-int wxArrayString::Index(const char *sz, bool bCase, bool bFromEnd) const
+// minimizes the memory usage by freeing unused memory
+void wxArrayString::Shrink()

 {
 {

-  if ( bFromEnd ) {
-    if ( m_nCount > 0 ) {
-      size_t ui = m_nCount;
-      do {
-        if ( STRING(m_pItems[--ui])->IsSameAs(sz, bCase) )
-          return ui;
-      }
-      while ( ui != 0 );
+  // only do it if we have some memory to free
+  if( m_nCount < m_nSize ) {
+    // allocates exactly as much memory as we need
+    wxChar **pNew = new wxChar *[m_nCount];
+
+    // copy data to new location
+    memcpy(pNew, m_pItems, m_nCount*sizeof(wxChar *));
+    delete [] m_pItems;
+    m_pItems = pNew;
+  }
+}
+
+// searches the array for an item (forward or backwards)
+int wxArrayString::Index(const wxChar *sz, bool bCase, bool bFromEnd) const
+{
+  if ( m_autoSort ) {
+    // use binary search in the sorted array
+    wxASSERT_MSG( bCase && !bFromEnd,
+                  wxT("search parameters ignored for auto sorted array") );
+
+    size_t i,
+           lo = 0,
+           hi = m_nCount;
+    int res;
+    while ( lo < hi ) {
+      i = (lo + hi)/2;
+
+      res = wxStrcmp(sz, m_pItems[i]);
+      if ( res < 0 )
+        hi = i;
+      else if ( res > 0 )
+        lo = i + 1;
+      else
+        return i;

     }
     }

+
+    return wxNOT_FOUND;

   }
   else {
   }
   else {

-    for( size_t ui = 0; ui < m_nCount; ui++ ) {
-      if( STRING(m_pItems[ui])->IsSameAs(sz, bCase) )
-        return ui;
+    // use linear search in unsorted array
+    if ( bFromEnd ) {
+      if ( m_nCount > 0 ) {
+        size_t ui = m_nCount;
+        do {
+          if ( STRING(m_pItems[--ui])->IsSameAs(sz, bCase) )
+            return ui;
+        }
+        while ( ui != 0 );
+      }
+    }
+    else {
+      for( size_t ui = 0; ui < m_nCount; ui++ ) {
+        if( STRING(m_pItems[ui])->IsSameAs(sz, bCase) )
+          return ui;
+      }

     }
   }
 
     }
   }
 

-  return NOT_FOUND;
+  return wxNOT_FOUND;

 }
 
 // add item at the end
 }
 
 // add item at the end

-void wxArrayString::Add(const wxString& str)
-{
-  wxASSERT( str.GetStringData()->IsValid() );
+size_t wxArrayString::Add(const wxString& str)
+{
+  if ( m_autoSort ) {
+    // insert the string at the correct position to keep the array sorted
+    size_t i,
+           lo = 0,
+           hi = m_nCount;
+    int res;
+    while ( lo < hi ) {
+      i = (lo + hi)/2;
+
+      res = wxStrcmp(str, m_pItems[i]);
+      if ( res < 0 )
+        hi = i;
+      else if ( res > 0 )
+        lo = i + 1;
+      else {
+        lo = hi = i;
+        break;
+      }
+    }

 
 

-  Grow();
+    wxASSERT_MSG( lo == hi, wxT("binary search broken") );

 
 

-  // the string data must not be deleted!
-  str.GetStringData()->Lock();
-  m_pItems[m_nCount++] = (char *)str.c_str();
+    Insert(str, lo);
+
+    return (size_t)lo;
+  }
+  else {
+    wxASSERT( str.GetStringData()->IsValid() );
+
+    Grow();
+
+    // the string data must not be deleted!
+    str.GetStringData()->Lock();
+
+    // just append
+    m_pItems[m_nCount] = (wxChar *)str.c_str(); // const_cast
+
+    return m_nCount++;
+  }

 }
 
 // add item at the given position
 }
 
 // add item at the given position


@@ -1350,15 +2059,15 @@ void wxArrayString::Insert(const wxString& str, size_t nIndex)
 {
   wxASSERT( str.GetStringData()->IsValid() );
 
 {
   wxASSERT( str.GetStringData()->IsValid() );
 

-  wxCHECK_RET( nIndex <= m_nCount, ("bad index in wxArrayString::Insert") );
+  wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArrayString::Insert") );

 
   Grow();
 
   memmove(&m_pItems[nIndex + 1], &m_pItems[nIndex],
 
   Grow();
 
   memmove(&m_pItems[nIndex + 1], &m_pItems[nIndex],

-          (m_nCount - nIndex)*sizeof(char *));
+          (m_nCount - nIndex)*sizeof(wxChar *));

 
   str.GetStringData()->Lock();
 
   str.GetStringData()->Lock();

-  m_pItems[nIndex] = (char *)str.c_str();
+  m_pItems[nIndex] = (wxChar *)str.c_str();

 
   m_nCount++;
 }
 
   m_nCount++;
 }


@@ -1366,31 +2075,123 @@ void wxArrayString::Insert(const wxString& str, size_t nIndex)
 // removes item from array (by index)
 void wxArrayString::Remove(size_t nIndex)
 {
 // removes item from array (by index)
 void wxArrayString::Remove(size_t nIndex)
 {

-  wxCHECK_RET( nIndex <= m_nCount, _("bad index in wxArrayString::Remove") );
+  wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArrayString::Remove") );

 
   // release our lock
   Item(nIndex).GetStringData()->Unlock();
 
   memmove(&m_pItems[nIndex], &m_pItems[nIndex + 1],
 
   // release our lock
   Item(nIndex).GetStringData()->Unlock();
 
   memmove(&m_pItems[nIndex], &m_pItems[nIndex + 1],

-          (m_nCount - nIndex - 1)*sizeof(char *));
+          (m_nCount - nIndex - 1)*sizeof(wxChar *));

   m_nCount--;
 }
 
 // removes item from array (by value)
   m_nCount--;
 }
 
 // removes item from array (by value)

-void wxArrayString::Remove(const char *sz)
+void wxArrayString::Remove(const wxChar *sz)

 {
   int iIndex = Index(sz);
 
 {
   int iIndex = Index(sz);
 

-  wxCHECK_RET( iIndex != NOT_FOUND,
-               _("removing inexistent element in wxArrayString::Remove") );
+  wxCHECK_RET( iIndex != wxNOT_FOUND,
+               wxT("removing inexistent element in wxArrayString::Remove") );

 
   Remove(iIndex);
 }
 
 
   Remove(iIndex);
 }
 

+// ----------------------------------------------------------------------------
+// sorting
+// ----------------------------------------------------------------------------
+
+// we can only sort one array at a time with the quick-sort based
+// implementation
+#if wxUSE_THREADS
+  // need a critical section to protect access to gs_compareFunction and
+  // gs_sortAscending variables
+  static wxCriticalSection *gs_critsectStringSort = NULL;
+
+  // call this before the value of the global sort vars is changed/after
+  // you're finished with them
+  #define START_SORT()     wxASSERT( !gs_critsectStringSort );                \
+                           gs_critsectStringSort = new wxCriticalSection;     \
+                           gs_critsectStringSort->Enter()
+  #define END_SORT()       gs_critsectStringSort->Leave();                    \
+                           delete gs_critsectStringSort;                      \
+                           gs_critsectStringSort = NULL
+#else // !threads
+  #define START_SORT()
+  #define END_SORT()
+#endif // wxUSE_THREADS
+
+// function to use for string comparaison
+static wxArrayString::CompareFunction gs_compareFunction = NULL;
+
+// if we don't use the compare function, this flag tells us if we sort the
+// array in ascending or descending order
+static bool gs_sortAscending = TRUE;
+
+// function which is called by quick sort
+static int LINKAGEMODE wxStringCompareFunction(const void *first, const void *second)
+{
+  wxString *strFirst = (wxString *)first;
+  wxString *strSecond = (wxString *)second;
+
+  if ( gs_compareFunction ) {
+    return gs_compareFunction(*strFirst, *strSecond);
+  }
+  else {
+    // maybe we should use wxStrcoll
+    int result = wxStrcmp(strFirst->c_str(), strSecond->c_str());
+
+    return gs_sortAscending ? result : -result;
+  }
+}
+

 // sort array elements using passed comparaison function
 // sort array elements using passed comparaison function

+void wxArrayString::Sort(CompareFunction compareFunction)
+{
+  START_SORT();
+
+  wxASSERT( !gs_compareFunction );  // must have been reset to NULL
+  gs_compareFunction = compareFunction;
+
+  DoSort();

 
 

-void wxArrayString::Sort(bool WXUNUSED(bCase), bool WXUNUSED(bReverse) )
+  // reset it to NULL so that Sort(bool) will work the next time
+  gs_compareFunction = NULL;
+
+  END_SORT();
+}
+
+void wxArrayString::Sort(bool reverseOrder)
+{
+  START_SORT();
+
+  wxASSERT( !gs_compareFunction );  // must have been reset to NULL
+  gs_sortAscending = !reverseOrder;
+
+  DoSort();
+
+  END_SORT();
+}
+
+void wxArrayString::DoSort()

 {
 {

-  //@@@@ TO DO
-  //qsort(m_pItems, m_nCount, sizeof(char *), fCmp);
+  wxCHECK_RET( !m_autoSort, wxT("can't use this method with sorted arrays") );
+
+  // just sort the pointers using qsort() - of course it only works because
+  // wxString() *is* a pointer to its data
+  qsort(m_pItems, m_nCount, sizeof(wxChar *), wxStringCompareFunction);

 }
 }

+
+bool wxArrayString::operator==(const wxArrayString& a) const
+{
+    if ( m_nCount != a.m_nCount )
+        return FALSE;
+
+    for ( size_t n = 0; n < m_nCount; n++ )
+    {
+        if ( Item(n) != a[n] )
+            return FALSE;
+    }
+
+    return TRUE;
+}
+