X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4cc6a9db04893bae4e1a768c682fc95143873311..6270539bcf24f2ec32150a09f8aad383f5de0671:/src/common/string.cpp

diff --git a/src/common/string.cpp b/src/common/string.cpp
index f0cb6d2910..12c4204759 100644
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -1,18 +1,15 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        string.cpp
 // Purpose:     wxString class
-// Author:      Vadim Zeitlin
+// Author:      Vadim Zeitlin, Ryan Norton
 // Modified by:
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+//              (c) 2004 Ryan Norton <wxprojects@comcast.net>
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-  #pragma implementation "string.h"
-#endif
-
 /*
  * About ref counting:
  *  1) all empty strings use g_strEmpty, nRefs = -1 (set in Init())
@@ -42,6 +39,10 @@
 #include <string.h>
 #include <stdlib.h>
 
+#ifndef __WXMSW__
+#include <errno.h>
+#endif
+
 #ifdef __SALFORDC__
   #include <clib.h>
 #endif
@@ -55,14 +56,9 @@
 // static class variables definition
 // ---------------------------------------------------------------------------
 
-#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 // Visual Age
-
 #if !wxUSE_STL
-  const size_t wxStringBase::npos = wxSTRING_MAXLEN;
+  //According to STL _must_ be a -1 size_t
+  const size_t wxStringBase::npos = (size_t) -1;
 #endif
 
 // ----------------------------------------------------------------------------
@@ -100,6 +96,8 @@ extern const wxChar WXDLLIMPEXP_BASE *wxEmptyString = &g_strEmpty.dummy;
 //
 // ATTN: you can _not_ use both of these in the same program!
 
+#include <iostream>
+
 wxSTD istream& operator>>(wxSTD istream& is, wxString& WXUNUSED(str))
 {
 #if 0
@@ -133,8 +131,12 @@ wxSTD istream& operator>>(wxSTD istream& is, wxString& WXUNUSED(str))
 
 wxSTD ostream& operator<<(wxSTD ostream& os, const wxString& str)
 {
-  os << str.c_str();
-  return os;
+#ifdef __BORLANDC__
+    os << str.mb_str();
+#else
+    os << str.c_str();
+#endif
+    return os;
 }
 
 #endif // wxUSE_STD_IOSTREAM
@@ -206,7 +208,7 @@ void wxStringBase::InitWith(const wxChar *psz, size_t nPos, size_t nLength)
       wxFAIL_MSG( _T("out of memory in wxStringBase::InitWith") );
       return;
     }
-    memcpy(m_pchData, psz + nPos, nLength*sizeof(wxChar));
+    wxTmemcpy(m_pchData, psz + nPos, nLength);
   }
 }
 
@@ -248,7 +250,7 @@ bool wxStringBase::AllocBuffer(size_t nLen)
 
   if ( pData == NULL ) {
     // allocation failures are handled by the caller
-    return FALSE;
+    return false;
   }
 
   pData->nRefs        = 1;
@@ -256,7 +258,7 @@ bool wxStringBase::AllocBuffer(size_t nLen)
   pData->nAllocLength = nLen + EXTRA_ALLOC;
   m_pchData           = pData->data();  // data starts after wxStringData
   m_pchData[nLen]     = wxT('\0');
-  return TRUE;
+  return true;
 }
 
 // must be called before changing this string
@@ -269,14 +271,14 @@ bool wxStringBase::CopyBeforeWrite()
     size_t nLen = pData->nDataLength;
     if ( !AllocBuffer(nLen) ) {
       // allocation failures are handled by the caller
-      return FALSE;
+      return false;
     }
-    memcpy(m_pchData, pData->data(), nLen*sizeof(wxChar));
+    wxTmemcpy(m_pchData, pData->data(), nLen);
   }
 
   wxASSERT( !GetStringData()->IsShared() );  // we must be the only owner
 
-  return TRUE;
+  return true;
 }
 
 // must be called before replacing contents of this string
@@ -291,7 +293,7 @@ bool wxStringBase::AllocBeforeWrite(size_t nLen)
     pData->Unlock();
     if ( !AllocBuffer(nLen) ) {
       // allocation failures are handled by the caller
-      return FALSE;
+      return false;
     }
   }
   else {
@@ -308,27 +310,29 @@ bool wxStringBase::AllocBeforeWrite(size_t nLen)
       if ( pData == NULL ) {
         // allocation failures are handled by the caller
         // keep previous data since reallocation failed
-        return FALSE;
+        return false;
       }
 
       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
 
-  return TRUE;
+  // it doesn't really matter what the string length is as it's going to be
+  // overwritten later but, for extra safety, set it to 0 for now as we may
+  // have some junk in m_pchData
+  GetStringData()->nDataLength = 0;
+
+  return true;
 }
 
 wxStringBase& wxStringBase::append(size_t n, wxChar ch)
 {
     size_type len = length();
 
-    if ( !CopyBeforeWrite() || !Alloc(len + n) ) {
+    if ( !Alloc(len + n) || !CopyBeforeWrite() ) {
       wxFAIL_MSG( _T("out of memory in wxStringBase::append") );
     }
     GetStringData()->nDataLength = len + n;
@@ -361,12 +365,12 @@ bool wxStringBase::Alloc(size_t nLen)
     if ( pData->IsEmpty() ) {
       nLen += EXTRA_ALLOC;
 
-      wxStringData* pData = (wxStringData*)
-          malloc(sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar));
+      pData = (wxStringData *)
+                malloc(sizeof(wxStringData) + (nLen + 1)*sizeof(wxChar));
 
       if ( pData == NULL ) {
         // allocation failure handled by caller
-        return FALSE;
+        return false;
       }
 
       pData->nRefs = 1;
@@ -380,9 +384,11 @@ bool wxStringBase::Alloc(size_t nLen)
       size_t nOldLen = pData->nDataLength;
       if ( !AllocBuffer(nLen) ) {
         // allocation failure handled by caller
-        return FALSE;
+        return false;
       }
-      memcpy(m_pchData, pData->data(), nOldLen*sizeof(wxChar));
+      // +1 to copy the terminator, too
+      memcpy(m_pchData, pData->data(), (nOldLen+1)*sizeof(wxChar));
+      GetStringData()->nDataLength = nOldLen;
     }
     else {
       nLen += EXTRA_ALLOC;
@@ -393,7 +399,7 @@ bool wxStringBase::Alloc(size_t nLen)
       if ( pData == NULL ) {
         // allocation failure handled by caller
         // keep previous data since reallocation failed
-        return FALSE;
+        return false;
       }
 
       // it's not important if the pointer changed or not (the check for this
@@ -403,7 +409,21 @@ bool wxStringBase::Alloc(size_t nLen)
     }
   }
   //else: we've already got enough
-  return TRUE;
+  return true;
+}
+
+wxStringBase::iterator wxStringBase::begin()
+{
+    if (length() > 0)
+        CopyBeforeWrite();
+    return m_pchData;
+}
+
+wxStringBase::iterator wxStringBase::end()
+{
+    if (length() > 0)
+        CopyBeforeWrite();
+    return m_pchData + length();
 }
 
 wxStringBase::iterator wxStringBase::erase(iterator it)
@@ -415,35 +435,35 @@ wxStringBase::iterator wxStringBase::erase(iterator it)
 
 wxStringBase& wxStringBase::erase(size_t nStart, size_t nLen)
 {
-  wxASSERT(nStart <= length());
-  size_t strLen = length() - nStart;
-  // delete nLen or up to the end of the string characters
-  nLen = strLen < nLen ? strLen : nLen;
-  wxString strTmp(c_str(), nStart);
-  strTmp.append(c_str() + nStart + nLen, length() - nStart - nLen);
+    wxASSERT(nStart <= length());
+    size_t strLen = length() - nStart;
+    // delete nLen or up to the end of the string characters
+    nLen = strLen < nLen ? strLen : nLen;
+    wxString strTmp(c_str(), nStart);
+    strTmp.append(c_str() + nStart + nLen, length() - nStart - nLen);
 
-  swap(strTmp);
-  return *this;
+    swap(strTmp);
+    return *this;
 }
 
 wxStringBase& wxStringBase::insert(size_t nPos, const wxChar *sz, size_t n)
 {
-  wxASSERT( nPos <= length() );
+    wxASSERT( nPos <= length() );
 
-  if ( n == npos ) n = wxStrlen(sz);
-  if ( n == 0 ) return *this;
+    if ( n == npos ) n = wxStrlen(sz);
+    if ( n == 0 ) return *this;
 
-  if ( !CopyBeforeWrite() || !Alloc(length() + n) ) {
-    wxFAIL_MSG( _T("out of memory in wxStringBase::insert") );
-  }
+    if ( !Alloc(length() + n) || !CopyBeforeWrite() ) {
+        wxFAIL_MSG( _T("out of memory in wxStringBase::insert") );
+    }
 
-  memmove(m_pchData + nPos + n, m_pchData + nPos,
-          (length() - nPos) * sizeof(wxChar));
-  memcpy(m_pchData + nPos, sz, n * sizeof(wxChar));
-  GetStringData()->nDataLength = length() + n;
-  m_pchData[length()] = '\0';
+    memmove(m_pchData + nPos + n, m_pchData + nPos,
+            (length() - nPos) * sizeof(wxChar));
+    memcpy(m_pchData + nPos, sz, n * sizeof(wxChar));
+    GetStringData()->nDataLength = length() + n;
+    m_pchData[length()] = '\0';
 
-  return *this;
+    return *this;
 }
 
 void wxStringBase::swap(wxStringBase& str)
@@ -455,26 +475,50 @@ void wxStringBase::swap(wxStringBase& str)
 
 size_t wxStringBase::find(const wxStringBase& str, size_t nStart) const
 {
-  wxASSERT( str.GetStringData()->IsValid() );
-  wxASSERT( nStart <= length() );
+    wxASSERT( str.GetStringData()->IsValid() );
+    wxASSERT( nStart <= length() );
+
+    //anchor
+    const wxChar* p = (const wxChar*)wxTmemchr(c_str() + nStart,
+                                               str.c_str()[0],
+                                               length() - nStart);
 
-  const wxChar *p = wxStrstr(c_str() + nStart, str.c_str());
+    if(!p)
+        return npos;
 
-  return p == NULL ? npos : p - c_str();
+    while(p - c_str() + str.length() <= length() &&
+          wxTmemcmp(p, str.c_str(), str.length()) )
+    {
+        //Previosly passed as the first argument to wxTmemchr,
+        //but C/C++ standard does not specify evaluation order
+        //of arguments to functions -
+        //http://embedded.com/showArticle.jhtml?articleID=9900607
+        ++p;
+
+        //anchor again
+        p = (const wxChar*)wxTmemchr(p,
+                                     str.c_str()[0],
+                                     length() - (p - c_str()));
+
+        if(!p)
+            return npos;
+    }
+
+    return (p - c_str() + str.length() <= length()) ? p - c_str() : npos;
 }
 
 size_t wxStringBase::find(const wxChar* sz, size_t nStart, size_t n) const
 {
-  return find(wxStringBase(sz, n), nStart);
+    return find(wxStringBase(sz, n), nStart);
 }
 
 size_t wxStringBase::find(wxChar ch, size_t nStart) const
 {
-  wxASSERT( nStart <= length() );
+    wxASSERT( nStart <= length() );
 
-  const wxChar *p = wxStrchr(c_str() + nStart, ch);
+    const wxChar *p = (const wxChar*)wxTmemchr(c_str() + nStart, ch, length() - nStart);
 
-  return p == NULL ? npos : p - c_str();
+    return p == NULL ? npos : p - c_str();
 }
 
 size_t wxStringBase::rfind(const wxStringBase& str, size_t nStart) const
@@ -499,14 +543,14 @@ size_t wxStringBase::rfind(const wxStringBase& str, size_t nStart) const
         const wxChar *cursor = c_str() + top;
         do
         {
-            if ( memcmp(cursor, str.c_str(),
-                        str.length() * sizeof(wxChar)) == 0 )
+            if ( wxTmemcmp(cursor, str.c_str(),
+                        str.length()) == 0 )
             {
                 return cursor - c_str();
             }
         } while ( cursor-- > c_str() );
     }
-    
+
     return npos;
 }
 
@@ -539,12 +583,21 @@ size_t wxStringBase::rfind(wxChar ch, size_t nStart) const
 
 size_t wxStringBase::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
+    wxASSERT(nStart <= length());
+
+    size_t len = wxStrlen(sz);
+
+    size_t i;
+    for(i = nStart; i < this->length(); ++i)
+    {
+        if (wxTmemchr(sz, *(c_str() + i), len))
+            break;
+    }
+
+    if(i == this->length())
         return npos;
+    else
+        return i;
 }
 
 size_t wxStringBase::find_first_of(const wxChar* sz, size_t nStart,
@@ -565,9 +618,11 @@ size_t wxStringBase::find_last_of(const wxChar* sz, size_t nStart) const
                         _T("invalid index in find_last_of()") );
     }
 
+    size_t len = wxStrlen(sz);
+
     for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p )
     {
-        if ( wxStrchr(sz, *p) )
+        if ( wxTmemchr(sz, *p, len) )
             return p - c_str();
     }
 
@@ -591,11 +646,19 @@ size_t wxStringBase::find_first_not_of(const wxChar* sz, size_t nStart) const
         wxASSERT( nStart <= length() );
     }
 
-    size_t nAccept = wxStrspn(c_str() + nStart, sz);
-    if ( nAccept >= length() - nStart )
-        return npos;
-    else
-        return nStart + nAccept;
+    size_t len = wxStrlen(sz);
+
+    size_t i;
+    for(i = nStart; i < this->length(); ++i)
+    {
+        if (!wxTmemchr(sz, *(c_str() + i), len))
+            break;
+    }
+
+    if(i == this->length())
+         return npos;
+     else
+        return i;
 }
 
 size_t wxStringBase::find_first_not_of(const wxChar* sz, size_t nStart,
@@ -628,10 +691,12 @@ size_t wxStringBase::find_last_not_of(const wxChar* sz, size_t nStart) const
         wxASSERT( nStart <= length() );
     }
 
+    size_t len = wxStrlen(sz);
+
     for ( const wxChar *p = c_str() + nStart; p >= c_str(); --p )
     {
-        if ( !wxStrchr(sz, *p) )
-            return p - c_str();
+        if ( !wxTmemchr(sz, *p,len) )
+             return p - c_str();
     }
 
     return npos;
@@ -674,10 +739,22 @@ wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen,
   wxStringBase strTmp;
   strTmp.reserve(length()); // micro optimisation to avoid multiple mem allocs
 
-  if ( nStart != 0 )
-    strTmp.append(c_str(), nStart);
+  //This is kind of inefficient, but its pretty good considering...
+  //we don't want to use character access operators here because on STL
+  //it will freeze the reference count of strTmp, which means a deep copy
+  //at the end when swap is called
+  //
+  //Also, we can't use append with the full character pointer and must
+  //do it manually because this string can contain null characters
+  for(size_t i1 = 0; i1 < nStart; ++i1)
+      strTmp.append(1, this->c_str()[i1]);
+
+  //its safe to do the full version here because
+  //sz must be a normal c string
   strTmp.append(sz);
-  strTmp.append(c_str() + nStart + nLen);
+
+  for(size_t i2 = nStart + nLen; i2 < length(); ++i2)
+      strTmp.append(1, this->c_str()[i2]);
 
   swap(strTmp);
   return *this;
@@ -686,7 +763,7 @@ wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen,
 wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen,
                                     size_t nCount, wxChar ch)
 {
-  return replace(nStart, nLen, wxStringBase(ch, nCount).c_str());
+  return replace(nStart, nLen, wxStringBase(nCount, ch).c_str());
 }
 
 wxStringBase& wxStringBase::replace(size_t nStart, size_t nLen,
@@ -757,13 +834,13 @@ bool wxStringBase::AssignCopy(size_t nSrcLen, const wxChar *pszSrcData)
   else {
     if ( !AllocBeforeWrite(nSrcLen) ) {
       // allocation failure handled by caller
-      return FALSE;
+      return false;
     }
     memcpy(m_pchData, pszSrcData, nSrcLen*sizeof(wxChar));
     GetStringData()->nDataLength = nSrcLen;
     m_pchData[nSrcLen] = wxT('\0');
   }
-  return TRUE;
+  return true;
 }
 
 // ---------------------------------------------------------------------------
@@ -792,7 +869,7 @@ bool wxStringBase::ConcatSelf(size_t nSrcLen, const wxChar *pszSrcData,
       wxStringData* pOldData = GetStringData();
       if ( !AllocBuffer(nNewLen) ) {
           // allocation failure handled by caller
-          return FALSE;
+          return false;
       }
       memcpy(m_pchData, pOldData->data(), nLen*sizeof(wxChar));
       pOldData->Unlock();
@@ -804,7 +881,7 @@ bool wxStringBase::ConcatSelf(size_t nSrcLen, const wxChar *pszSrcData,
       // we have to grow the buffer
       if ( capacity() < nNewLen ) {
           // allocation failure handled by caller
-          return FALSE;
+          return false;
       }
     }
     else {
@@ -823,7 +900,7 @@ bool wxStringBase::ConcatSelf(size_t nSrcLen, const wxChar *pszSrcData,
     GetStringData()->nDataLength = nNewLen; // and fix the length
   }
   //else: the string to append was empty
-  return TRUE;
+  return true;
 }
 
 // ---------------------------------------------------------------------------
@@ -839,11 +916,11 @@ bool wxStringBase::AllocCopy(wxString& dest, int nCopyLen, int nCopyIndex) const
   else {
     if ( !dest.AllocBuffer(nCopyLen) ) {
       // allocation failure handled by caller
-      return FALSE;
+      return false;
     }
     memcpy(dest.m_pchData, m_pchData + nCopyIndex, nCopyLen*sizeof(wxChar));
   }
-  return TRUE;
+  return true;
 }
 
 #endif // !wxUSE_STL
@@ -860,31 +937,24 @@ static inline int wxDoCmp(const wxChar* s1, size_t l1,
                           const wxChar* s2, size_t l2)
 {
     if( l1 == l2 )
-        return wxStrncmp(s1, s2, l1);
+        return wxTmemcmp(s1, s2, l1);
     else if( l1 < l2 )
     {
-        int ret = wxStrncmp(s1, s2, l1);
+        int ret = wxTmemcmp(s1, s2, l1);
         return ret == 0 ? -1 : ret;
     }
-    else if( l1 > l2 )
+    else
     {
-        int ret = wxStrncmp(s1, s2, l2);
+        int ret = wxTmemcmp(s1, s2, l2);
         return ret == 0 ? +1 : ret;
     }
-
-    wxFAIL;   // must never get there
-    return 0; // quiet compilers
 }
 
-#if wxUSE_STL
-
 int STRINGCLASS::compare(const wxStringBase& str) const
 {
     return ::wxDoCmp(data(), length(), str.data(), str.length());
 }
 
-#endif
-
 int STRINGCLASS::compare(size_t nStart, size_t nLen,
                          const wxStringBase& str) const
 {
@@ -907,16 +977,12 @@ int STRINGCLASS::compare(size_t nStart, size_t nLen,
     return ::wxDoCmp(data() + nStart, nLen, str.data() + nStart2, nLen2);
 }
 
-#if wxUSE_STL
-
 int STRINGCLASS::compare(const wxChar* sz) const
 {
     size_t nLen = wxStrlen(sz);
     return ::wxDoCmp(data(), length(), sz, nLen);
 }
 
-#endif
-
 int STRINGCLASS::compare(size_t nStart, size_t nLen,
                          const wxChar* sz, size_t nCount) const
 {
@@ -938,7 +1004,7 @@ int STRINGCLASS::compare(size_t nStart, size_t nLen,
 // ===========================================================================
 
 // ---------------------------------------------------------------------------
-// construction
+// construction and conversion
 // ---------------------------------------------------------------------------
 
 #if wxUSE_UNICODE
@@ -946,12 +1012,29 @@ int STRINGCLASS::compare(size_t nStart, size_t nLen,
 // from multibyte string
 wxString::wxString(const char *psz, wxMBConv& conv, size_t nLength)
 {
+    // if nLength != npos, then we have to make a NULL-terminated copy
+    // of first nLength bytes of psz first because the input buffer to MB2WC
+    // must always be NULL-terminated:
+    wxCharBuffer inBuf((const char *)NULL);
+    if (nLength != npos)
+    {
+        wxASSERT( psz != NULL );
+        wxCharBuffer tmp(nLength);
+        memcpy(tmp.data(), psz, nLength);
+        tmp.data()[nLength] = '\0';
+        inBuf = tmp;
+        psz = inBuf.data();
+    }
+
     // first get the size of the buffer we need
     size_t nLen;
     if ( psz )
     {
         // calculate the needed size ourselves or use the provided one
-        nLen = nLength == npos ? conv.MB2WC(NULL, psz, 0) : nLength;
+        if (nLength == npos)
+            nLen = strlen(psz);
+        else
+            nLen = nLength;
     }
     else
     {
@@ -959,43 +1042,56 @@ wxString::wxString(const char *psz, wxMBConv& conv, size_t nLength)
         nLen = 0;
     }
 
+
     // anything to do?
     if ( (nLen != 0) && (nLen != (size_t)-1) )
     {
-        if ( !Alloc(nLen) )
-        {
-            wxFAIL_MSG( _T("out of memory in wxString::wxString") );
-        }
-        else
-        {
-            wxWCharBuffer buf(nLen + 1);
-            // MB2WC wants the buffer size, not the string length hence +1
-            nLen = conv.MB2WC(buf.data(), psz, nLen + 1);
+        //Convert string
+        size_t nRealSize;
+        wxWCharBuffer theBuffer = conv.cMB2WC(psz, nLen, &nRealSize);
 
-            if ( nLen != (size_t)-1 )
-            {
-                // initialized ok, set the real length as nLength specified by
-                // the caller could be greater than the real string length
-                assign(buf.data(), nLen);
-                return;
-            }
-            //else: the conversion failed -- leave the string empty (what else?)
-        }
+        //Copy
+        if (nRealSize)
+            assign( theBuffer.data() , nRealSize - 1 );
     }
 }
 
+//Convert wxString in Unicode mode to a multi-byte string
+const wxCharBuffer wxString::mb_str(wxMBConv& conv) const
+{
+    size_t dwOutSize;
+    return conv.cWC2MB(c_str(), length(), &dwOutSize);
+}
+
 #else // ANSI
 
 #if wxUSE_WCHAR_T
 // from wide string
 wxString::wxString(const wchar_t *pwz, wxMBConv& conv, size_t nLength)
 {
+    // if nLength != npos, then we have to make a NULL-terminated copy
+    // of first nLength chars of psz first because the input buffer to WC2MB
+    // must always be NULL-terminated:
+    wxWCharBuffer inBuf((const wchar_t *)NULL);
+    if (nLength != npos)
+    {
+        wxASSERT( pwz != NULL );
+        wxWCharBuffer tmp(nLength);
+        memcpy(tmp.data(), pwz, nLength * sizeof(wchar_t));
+        tmp.data()[nLength] = '\0';
+        inBuf = tmp;
+        pwz = inBuf.data();
+    }
+
     // first get the size of the buffer we need
     size_t nLen;
     if ( pwz )
     {
         // calculate the needed size ourselves or use the provided one
-        nLen = nLength == npos ? conv.WC2MB(NULL, pwz, 0) : nLength;
+        if (nLength == npos)
+            nLen = wxWcslen(pwz);
+        else
+            nLen = nLength;
     }
     else
     {
@@ -1006,26 +1102,24 @@ wxString::wxString(const wchar_t *pwz, wxMBConv& conv, size_t nLength)
     // anything to do?
     if ( (nLen != 0) && (nLen != (size_t)-1) )
     {
-        if ( !Alloc(nLen) )
-        {
-            wxFAIL_MSG( _T("out of memory in wxString::wxString") );
-        }
-        else
-        {
-            wxCharBuffer buf(nLen);
-            // WC2MB wants the buffer size, not the string length
-            if ( conv.WC2MB(buf.data(), pwz, nLen + 1) != (size_t)-1 )
-            {
-                // initialized ok
-                assign(buf.data(), nLen);
-                return;
-            }
-            //else: the conversion failed -- leave the string empty (what else?)
-        }
+        //Convert string
+        size_t nRealSize;
+        wxCharBuffer theBuffer = conv.cWC2MB(pwz, nLen, &nRealSize);
+
+        //Copy
+        if (nRealSize)
+            assign( theBuffer.data() , nRealSize - 1 );
     }
+}
 
-    // leave empty
+//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(wxMBConv& conv) const
+{
+    size_t dwOutSize;
+    return conv.cMB2WC(c_str(), length(), &dwOutSize);
 }
+
 #endif // wxUSE_WCHAR_T
 
 #endif // Unicode/ANSI
@@ -1048,7 +1142,7 @@ wxChar *wxString::GetWriteBuf(size_t nLen)
   }
 
   wxASSERT( GetStringData()->nRefs == 1 );
-  GetStringData()->Validate(FALSE);
+  GetStringData()->Validate(false);
 
   return m_pchData;
 }
@@ -1057,13 +1151,13 @@ wxChar *wxString::GetWriteBuf(size_t nLen)
 void wxString::UngetWriteBuf()
 {
   GetStringData()->nDataLength = wxStrlen(m_pchData);
-  GetStringData()->Validate(TRUE);
+  GetStringData()->Validate(true);
 }
 
 void wxString::UngetWriteBuf(size_t nLen)
 {
   GetStringData()->nDataLength = nLen;
-  GetStringData()->Validate(TRUE);
+  GetStringData()->Validate(true);
 }
 #endif
 
@@ -1151,7 +1245,7 @@ wxString operator+(const wxString& str, const wxChar *psz)
   if ( !s.Alloc(wxStrlen(psz) + str.Len()) ) {
     wxFAIL_MSG( _T("out of memory in wxString::operator+") );
   }
-  s = str;
+  s += str;
   s += psz;
 
   return s;
@@ -1177,8 +1271,71 @@ wxString operator+(const wxChar *psz, const wxString& str)
 // other common string functions
 // ===========================================================================
 
+int wxString::Cmp(const wxString& s) const
+{
+    return compare(s);
+}
+
+int wxString::Cmp(const wxChar* psz) const
+{
+    return compare(psz);
+}
+
+static inline int wxDoCmpNoCase(const wxChar* s1, size_t l1,
+                                const wxChar* s2, size_t l2)
+{
+    size_t i;
+
+    if( l1 == l2 )
+    {
+        for(i = 0; i < l1; ++i)
+        {
+            if(wxTolower(s1[i]) != wxTolower(s2[i]))
+                break;
+        }
+        return i == l1 ? 0 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1;
+    }
+    else if( l1 < l2 )
+    {
+        for(i = 0; i < l1; ++i)
+        {
+            if(wxTolower(s1[i]) != wxTolower(s2[i]))
+                break;
+        }
+        return i == l1 ? -1 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1;
+    }
+    else
+    {
+        for(i = 0; i < l2; ++i)
+        {
+            if(wxTolower(s1[i]) != wxTolower(s2[i]))
+                break;
+        }
+        return i == l2 ? 1 : wxTolower(s1[i]) < wxTolower(s2[i]) ? -1 : 1;
+    }
+}
+
+int wxString::CmpNoCase(const wxString& s) const
+{
+    return wxDoCmpNoCase(data(), length(), s.data(), s.length());
+}
+
+int wxString::CmpNoCase(const wxChar* psz) const
+{
+    int nLen = wxStrlen(psz);
+
+    return wxDoCmpNoCase(data(), length(), psz, nLen);
+}
+
+
 #if wxUSE_UNICODE
 
+#ifdef __MWERKS__
+#ifndef __SCHAR_MAX__
+#define __SCHAR_MAX__ 127
+#endif
+#endif
+
 wxString wxString::FromAscii(const char *ascii)
 {
     if (!ascii)
@@ -1218,12 +1375,13 @@ const wxCharBuffer wxString::ToAscii() const
     // this will allocate enough space for the terminating NUL too
     wxCharBuffer buffer(length());
 
-    signed char *dest = (signed char *)buffer.data();
+
+    char *dest = buffer.data();
 
     const wchar_t *pwc = c_str();
     for ( ;; )
     {
-        *dest++ = *pwc > SCHAR_MAX ? '_' : *pwc;
+        *dest++ = (char)(*pwc > SCHAR_MAX ? wxT('_') : *pwc);
 
         // the output string can't have embedded NULs anyhow, so we can safely
         // stop at first of them even if we do have any
@@ -1239,36 +1397,37 @@ const wxCharBuffer wxString::ToAscii() const
 // extract string of length nCount starting at nFirst
 wxString wxString::Mid(size_t nFirst, size_t nCount) const
 {
-  size_t nLen = length();
+    size_t nLen = length();
 
-  // default value of nCount is npos and means "till the end"
-  if ( nCount == npos )
-  {
-    nCount = nLen - nFirst;
-  }
+    // default value of nCount is npos and means "till the end"
+    if ( nCount == npos )
+    {
+        nCount = nLen - nFirst;
+    }
 
-  // out-of-bounds requests return sensible things
-  if ( nFirst + nCount > nLen )
-  {
-    nCount = nLen - nFirst;
-  }
+    // out-of-bounds requests return sensible things
+    if ( nFirst + nCount > nLen )
+    {
+        nCount = nLen - nFirst;
+    }
 
-  if ( nFirst > nLen )
-  {
-    // AllocCopy() will return empty string
-    nCount = 0;
-  }
+    if ( nFirst > nLen )
+    {
+        // AllocCopy() will return empty string
+        return wxEmptyString;
+    }
 
-  wxString dest(*this, nFirst, nCount);
-  if ( dest.length() != nCount ) {
-      wxFAIL_MSG( _T("out of memory in wxString::Mid") );
-  }
+    wxString dest(*this, nFirst, nCount);
+    if ( dest.length() != nCount )
+    {
+        wxFAIL_MSG( _T("out of memory in wxString::Mid") );
+    }
 
-  return dest;
+    return dest;
 }
 
 // check that the string starts with prefix and return the rest of the string
-// in the provided pointer if it is not NULL, otherwise return FALSE
+// 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") );
@@ -1283,7 +1442,7 @@ bool wxString::StartsWith(const wxChar *prefix, wxString *rest) const
         if ( *prefix++ != *p++ )
         {
             // no match
-            return FALSE;
+            return false;
         }
     }
 
@@ -1293,7 +1452,7 @@ bool wxString::StartsWith(const wxChar *prefix, wxString *rest) const
         *rest = p;
     }
 
-    return TRUE;
+    return true;
 }
 
 // extract nCount last (rightmost) characters
@@ -1314,7 +1473,7 @@ wxString wxString::Right(size_t nCount) const
 wxString wxString::AfterLast(wxChar ch) const
 {
   wxString str;
-  int iPos = Find(ch, TRUE);
+  int iPos = Find(ch, true);
   if ( iPos == wxNOT_FOUND )
     str = *this;
   else
@@ -1350,7 +1509,7 @@ wxString wxString::BeforeFirst(wxChar ch) const
 wxString wxString::BeforeLast(wxChar ch) const
 {
   wxString str;
-  int iPos = Find(ch, TRUE);
+  int iPos = Find(ch, true);
   if ( iPos != wxNOT_FOUND && iPos != 0 )
     str = wxString(c_str(), iPos);
 
@@ -1370,94 +1529,85 @@ wxString wxString::AfterFirst(wxChar ch) const
 }
 
 // replace first (or all) occurences of some substring with another one
-size_t
-wxString::Replace(const wxChar *szOld, const wxChar *szNew, bool bReplaceAll)
+size_t wxString::Replace(const wxChar *szOld,
+                  const wxChar *szNew, bool bReplaceAll)
 {
     // if we tried to replace an empty string we'd enter an infinite loop below
     wxCHECK_MSG( szOld && *szOld && szNew, 0,
                  _T("wxString::Replace(): invalid parameter") );
 
-  size_t uiCount = 0;   // count of replacements made
+    size_t uiCount = 0;   // count of replacements made
 
-  size_t uiOldLen = wxStrlen(szOld);
+    size_t uiOldLen = wxStrlen(szOld);
+    size_t uiNewLen = wxStrlen(szNew);
 
-  wxString strTemp;
-  const wxChar *pCurrent = c_str();
-  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 )
-        return 0;
+    size_t dwPos = 0;
 
-      strTemp += pCurrent;    // copy the rest
-      break;                  // exit the loop
-    }
-    else {
-      // take chars before match
-      size_type len = strTemp.length();
-      strTemp.append(pCurrent, pSubstr - pCurrent);
-      if ( strTemp.length() != (size_t)(len + pSubstr - pCurrent) ) {
-        wxFAIL_MSG( _T("out of memory in wxString::Replace") );
-        return 0;
-      }
-      strTemp += szNew;
-      pCurrent = pSubstr + uiOldLen;  // restart after match
+    while ( this->c_str()[dwPos] != wxT('\0') )
+    {
+        //DO NOT USE STRSTR HERE
+        //this string can contain embedded null characters,
+        //so strstr will function incorrectly
+        dwPos = find(szOld, dwPos);
+        if ( dwPos == npos )
+            break;                  // exit the loop
+        else
+        {
+            //replace this occurance of the old string with the new one
+            replace(dwPos, uiOldLen, szNew, uiNewLen);
 
-      uiCount++;
+            //move up pos past the string that was replaced
+            dwPos += uiNewLen;
 
-      // stop now?
-      if ( !bReplaceAll ) {
-        strTemp += pCurrent;    // copy the rest
-        break;                  // exit the loop
-      }
-    }
-  }
+            //increase replace count
+            ++uiCount;
 
-  // only done if there were replacements, otherwise would have returned above
-  swap(strTemp);
+            // stop now?
+            if ( !bReplaceAll )
+                break;                  // exit the loop
+        }
+    }
 
-  return uiCount;
+    return uiCount;
 }
 
 bool wxString::IsAscii() const
 {
   const wxChar *s = (const wxChar*) *this;
   while(*s){
-    if(!isascii(*s)) return(FALSE);
+    if(!isascii(*s)) return(false);
     s++;
   }
-  return(TRUE);
+  return(true);
 }
 
 bool wxString::IsWord() const
 {
   const wxChar *s = (const wxChar*) *this;
   while(*s){
-    if(!wxIsalpha(*s)) return(FALSE);
+    if(!wxIsalpha(*s)) return(false);
     s++;
   }
-  return(TRUE);
+  return(true);
 }
 
 bool wxString::IsNumber() const
 {
   const wxChar *s = (const wxChar*) *this;
   if (wxStrlen(s))
-     if ((s[0] == '-') || (s[0] == '+')) s++;
+     if ((s[0] == wxT('-')) || (s[0] == wxT('+'))) s++;
   while(*s){
-    if(!wxIsdigit(*s)) return(FALSE);
+    if(!wxIsdigit(*s)) return(false);
     s++;
   }
-  return(TRUE);
+  return(true);
 }
 
 wxString wxString::Strip(stripType w) const
 {
     wxString s = *this;
-    if ( w & leading ) s.Trim(FALSE);
-    if ( w & trailing ) s.Trim(TRUE);
+    if ( w & leading ) s.Trim(false);
+    if ( w & trailing ) s.Trim(true);
     return s;
 }
 
@@ -1485,7 +1635,7 @@ wxString& wxString::MakeLower()
 // trimming and padding
 // ---------------------------------------------------------------------------
 
-// some compilers (VC++ 6.0 not to name them) return TRUE for a call to
+// some compilers (VC++ 6.0 not to name them) return true for a call to
 // isspace('ê') in the C locale which seems to be broken to me, but we have to
 // live with this by checking that the character is a 7 bit one - even if this
 // may fail to detect some spaces (I don't know if Unicode doesn't have
@@ -1497,7 +1647,7 @@ inline int wxSafeIsspace(wxChar ch) { return (ch < 127) && wxIsspace(ch); }
 wxString& wxString::Trim(bool bFromRight)
 {
   // first check if we're going to modify the string at all
-  if ( !IsEmpty() &&
+  if ( !empty() &&
        (
         (bFromRight && wxSafeIsspace(GetChar(Len() - 1))) ||
         (!bFromRight && wxSafeIsspace(GetChar(0u)))
@@ -1583,41 +1733,41 @@ int wxString::Find(const wxChar *pszSub) const
 
 bool wxString::ToLong(long *val, int base) const
 {
-    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToLong") );
+    wxCHECK_MSG( val, false, _T("NULL pointer in wxString::ToLong") );
     wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
 
     const wxChar *start = c_str();
     wxChar *end;
     *val = wxStrtol(start, &end, base);
 
-    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // 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);
 }
 
 bool wxString::ToULong(unsigned long *val, int base) const
 {
-    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToULong") );
+    wxCHECK_MSG( val, false, _T("NULL pointer in wxString::ToULong") );
     wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
 
     const wxChar *start = c_str();
     wxChar *end;
     *val = wxStrtoul(start, &end, base);
 
-    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // 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);
 }
 
 bool wxString::ToDouble(double *val) const
 {
-    wxCHECK_MSG( val, FALSE, _T("NULL pointer in wxString::ToDouble") );
+    wxCHECK_MSG( val, false, _T("NULL pointer in wxString::ToDouble") );
 
     const wxChar *start = c_str();
     wxChar *end;
     *val = wxStrtod(start, &end);
 
-    // return TRUE only if scan was stopped by the terminating NUL and if the
+    // 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);
 }
@@ -1650,40 +1800,42 @@ wxString wxString::FormatV(const wxChar *pszFormat, va_list argptr)
 
 int wxString::Printf(const wxChar *pszFormat, ...)
 {
-  va_list argptr;
-  va_start(argptr, pszFormat);
+    va_list argptr;
+    va_start(argptr, pszFormat);
 
-  int iLen = PrintfV(pszFormat, argptr);
+    int iLen = PrintfV(pszFormat, argptr);
 
-  va_end(argptr);
+    va_end(argptr);
 
-  return iLen;
+    return iLen;
 }
 
 int wxString::PrintfV(const wxChar* pszFormat, va_list argptr)
 {
     int size = 1024;
-    int len;
 
     for ( ;; )
     {
-        {
-            wxStringBuffer tmp(*this, size + 1);
-            wxChar* buf = tmp;
+        wxStringBuffer tmp(*this, size + 1);
+        wxChar* buf = tmp;
 
-            if ( !buf )
-            {
-                // out of memory
-                return -1;
-            }
+        if ( !buf )
+        {
+            // out of memory
+            return -1;
+        }
 
-            len = wxVsnprintf(buf, size, pszFormat, argptr);
+        // wxVsnprintf() may modify the original arg pointer, so pass it
+        // only a copy
+        va_list argptrcopy;
+        wxVaCopy(argptrcopy, argptr);
+        int len = wxVsnprintf(buf, size, pszFormat, argptrcopy);
+        va_end(argptrcopy);
 
-            // some implementations of vsnprintf() don't NUL terminate
-            // the string if there is not enough space for it so
-            // always do it manually
-            buf[size] = _T('\0');
-        }
+        // some implementations of vsnprintf() don't NUL terminate
+        // the string if there is not enough space for it so
+        // always do it manually
+        buf[size] = _T('\0');
 
         // vsnprintf() may return either -1 (traditional Unix behaviour) or the
         // total number of characters which would have been written if the
@@ -1694,6 +1846,16 @@ int wxString::PrintfV(const wxChar* pszFormat, va_list argptr)
             break;
         }
 
+#ifdef EOVERFLOW
+        // if the error is not due to not having enough space (it could be e.g.
+        // EILSEQ), break too -- we'd just eat all available memory uselessly
+        if ( errno != EOVERFLOW )
+        {
+            // no sense in continuing
+            break;
+        }
+#endif // EOVERFLOW
+
         // still not enough, double it again
         size *= 2;
     }
@@ -1708,7 +1870,7 @@ int wxString::PrintfV(const wxChar* pszFormat, va_list argptr)
 // misc other operations
 // ----------------------------------------------------------------------------
 
-// returns TRUE if the string matches the pattern which may contain '*' and
+// 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
@@ -1774,7 +1936,7 @@ match:
     switch ( *pszMask ) {
       case wxT('?'):
         if ( *pszTxt == wxT('\0') )
-          return FALSE;
+          return false;
 
         // pszTxt and pszMask will be incremented in the loop statement
 
@@ -1793,7 +1955,7 @@ match:
 
           // if there is nothing more, match
           if ( *pszMask == wxT('\0') )
-            return TRUE;
+            return true;
 
           // are there any other metacharacters in the mask?
           size_t uiLenMask;
@@ -1811,7 +1973,7 @@ match:
           wxString strToMatch(pszMask, uiLenMask);
           const wxChar* pMatch = wxStrstr(pszTxt, strToMatch);
           if ( pMatch == NULL )
-            return FALSE;
+            return false;
 
           // -1 to compensate "++" in the loop
           pszTxt = pMatch + uiLenMask - 1;
@@ -1821,14 +1983,14 @@ match:
 
       default:
         if ( *pszMask != *pszTxt )
-          return FALSE;
+          return false;
         break;
     }
   }
 
   // match only if nothing left
   if ( *pszTxt == wxT('\0') )
-    return TRUE;
+    return true;
 
   // if we failed to match, backtrack if we can
   if ( pszLastStarInText ) {
@@ -1842,7 +2004,7 @@ match:
     goto match;
   }
 
-  return FALSE;
+  return false;
 #endif // wxUSE_REGEX/!wxUSE_REGEX
 }
 
@@ -1881,6 +2043,24 @@ int wxString::sprintf(const wxChar *pszFormat, ...)
 
 #include "wx/arrstr.h"
 
+wxArrayString::wxArrayString(size_t sz, const wxChar** a)
+{
+#if !wxUSE_STL
+    Init(false);
+#endif
+    for (size_t i=0; i < sz; i++)
+        Add(a[i]);
+}
+
+wxArrayString::wxArrayString(size_t sz, const wxString* a)
+{
+#if !wxUSE_STL
+    Init(false);
+#endif
+    for (size_t i=0; i < sz; i++)
+        Add(a[i]);
+}
+
 #if !wxUSE_STL
 
 // size increment = min(50% of current size, ARRAY_MAXSIZE_INCREMENT)
@@ -2058,6 +2238,11 @@ wxString* wxArrayString::GetStringArray() const
     return array;
 }
 
+void wxArrayString::Remove(size_t nIndex, size_t nRemove)
+{
+    RemoveAt(nIndex, nRemove);
+}
+
 #endif // WXWIN_COMPATIBILITY_2_4
 
 // searches the array for an item (forward or backwards)
@@ -2121,7 +2306,7 @@ size_t wxArrayString::Add(const wxString& str, size_t nInsert)
     while ( lo < hi ) {
       i = (lo + hi)/2;
 
-      res = wxStrcmp(str, m_pItems[i]);
+      res = str.Cmp(m_pItems[i]);
       if ( res < 0 )
         hi = i;
       else if ( res > 0 )
@@ -2179,6 +2364,30 @@ void wxArrayString::Insert(const wxString& str, size_t nIndex, size_t nInsert)
   m_nCount += nInsert;
 }
 
+// range insert (STL 23.2.4.3)
+void
+wxArrayString::insert(iterator it, const_iterator first, const_iterator last)
+{
+    const int idx = it - begin();
+
+    // grow it once
+    Grow(last - first);
+
+    // reset "it" since it can change inside Grow()
+    it = begin() + idx;
+
+    while ( first != last )
+    {
+        it = insert(it, *first);
+
+        // insert returns an iterator to the last element inserted but we need
+        // insert the next after this one, that is before the next one
+        ++it;
+
+        ++first;
+    }
+}
+
 // expand the array
 void wxArrayString::SetCount(size_t count)
 {
@@ -2252,7 +2461,7 @@ 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;
+static bool gs_sortAscending = true;
 
 // function which is called by quick sort
 extern "C" int wxC_CALLING_CONV     // LINKAGEMODE
@@ -2266,7 +2475,7 @@ wxStringCompareFunction(const void *first, const void *second)
   }
   else {
     // maybe we should use wxStrcoll
-    int result = wxStrcmp(strFirst->c_str(), strSecond->c_str());
+    int result = strFirst->Cmp(*strSecond);
 
     return gs_sortAscending ? result : -result;
   }
@@ -2288,7 +2497,11 @@ void wxArrayString::Sort(CompareFunction compareFunction)
   END_SORT();
 }
 
-typedef  int (wxC_CALLING_CONV * wxStringCompareFn)(const void *first, const void *second);
+extern "C"
+{
+    typedef int (wxC_CALLING_CONV * wxStringCompareFn)(const void *first,
+                                                       const void *second);
+}
 
 void wxArrayString::Sort(CompareFunction2 compareFunction)
 {
@@ -2312,25 +2525,25 @@ void wxArrayString::DoSort()
 bool wxArrayString::operator==(const wxArrayString& a) const
 {
     if ( m_nCount != a.m_nCount )
-        return FALSE;
+        return false;
 
     for ( size_t n = 0; n < m_nCount; n++ )
     {
         if ( Item(n) != a[n] )
-            return FALSE;
+            return false;
     }
 
-    return TRUE;
+    return true;
 }
 
 #endif // !wxUSE_STL
 
-int wxStringSortAscending(wxString* s1, wxString* s2)
+int wxCMPFUNC_CONV wxStringSortAscending(wxString* s1, wxString* s2)
 {
-    return wxStrcmp(s1->c_str(), s2->c_str());
+    return  s1->Cmp(*s2);
 }
 
-int wxStringSortDescending(wxString* s1, wxString* s2)
+int wxCMPFUNC_CONV wxStringSortDescending(wxString* s1, wxString* s2)
 {
-    return -wxStrcmp(s1->c_str(), s2->c_str());
+    return -s1->Cmp(*s2);
 }