X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/eecb33b0189a3804dead82317a575e0f1d52cd9f..5ac1d44aa499901b1a2e194292ba7a93112196ae:/src/common/string.cpp?ds=sidebyside

diff --git a/src/common/string.cpp b/src/common/string.cpp
index 4d16458ff8..99bb5a55a3 100644
--- a/src/common/string.cpp
+++ b/src/common/string.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        string.cpp
+// Name:        src/common/string.cpp
 // Purpose:     wxString class
 // Author:      Vadim Zeitlin, Ryan Norton
 // Modified by:
@@ -10,10 +10,6 @@
 // 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())
@@ -29,14 +25,13 @@
 #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"
-  #include "wx/thread.h"
+    #include "wx/string.h"
+    #include "wx/intl.h"
+    #include "wx/thread.h"
 #endif
 
 #include <ctype.h>
@@ -44,7 +39,7 @@
 #include <stdlib.h>
 
 #ifdef __SALFORDC__
-  #include <clib.h>
+    #include <clib.h>
 #endif
 
 // allocating extra space for each string consumes more memory but speeds up
@@ -131,8 +126,12 @@ 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
@@ -312,13 +311,15 @@ bool wxStringBase::AllocBeforeWrite(size_t nLen)
       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
 
+  // 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;
 }
 
@@ -326,7 +327,7 @@ 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;
@@ -359,8 +360,8 @@ 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
@@ -380,7 +381,9 @@ bool wxStringBase::Alloc(size_t nLen)
         // allocation failure handled by caller
         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;
@@ -427,35 +430,35 @@ 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)
@@ -467,44 +470,50 @@ 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);
+    //anchor
+    const wxChar* p = (const wxChar*)wxTmemchr(c_str() + nStart,
+                                               str.c_str()[0],
+                                               length() - nStart);
 
-  if(!p)
-      return npos;
+    if(!p)
+        return npos;
 
-  while(p - c_str() + str.length() <= length() &&
-        wxTmemcmp(p, str.c_str(), str.length()) )
-  {
-      //anchor again
-      p = (const wxChar*)wxTmemchr(++p,
-                                  str.c_str()[0],
-                                  length() - (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;
 
-      if(!p)
-          return npos;
-  }
+        //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;
+    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 = (const wxChar*)wxTmemchr(c_str() + nStart, ch, length() - nStart);
+    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
@@ -725,10 +734,22 @@ 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;
@@ -984,114 +1005,58 @@ int STRINGCLASS::compare(size_t nStart, size_t nLen,
 #if wxUSE_UNICODE
 
 // from multibyte string
-wxString::wxString(const char *psz, wxMBConv& conv, size_t nLength)
+wxString::wxString(const char *psz, const 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
-        if (nLength == npos)
-            nLen = strlen(psz);
-        else
-            nLen = nLength;
-    }
-    else
-    {
-        // nothing to convert
-        nLen = 0;
-    }
-
-
     // anything to do?
-    if ( (nLen != 0) && (nLen != (size_t)-1) )
+    if ( psz && nLength != 0 )
     {
-        //Convert string
-        size_t nRealSize;
-        wxWCharBuffer theBuffer = conv.cMB2WC(psz, nLen, &nRealSize);
+        if ( nLength == npos )
+        {
+            nLength = wxNO_LEN;
+        }
+
+        size_t nLenWide;
+        wxWCharBuffer wbuf = conv.cMB2WC(psz, nLength, &nLenWide);
 
-        //Copy
-        if (nRealSize)
-            assign( theBuffer.data() , nRealSize - 1 );
+        if ( nLenWide )
+            assign(wbuf, nLenWide);
     }
 }
 
 //Convert wxString in Unicode mode to a multi-byte string
-const wxCharBuffer wxString::mb_str(wxMBConv& conv) const
+const wxCharBuffer wxString::mb_str(const wxMBConv& conv) const
 {
-    size_t dwOutSize;
-    return conv.cWC2MB(c_str(), length(), &dwOutSize);
+    return conv.cWC2MB(c_str(), length() + 1 /* size, not length */, NULL);
 }
 
 #else // ANSI
 
 #if wxUSE_WCHAR_T
+
 // from wide string
-wxString::wxString(const wchar_t *pwz, wxMBConv& conv, size_t nLength)
+wxString::wxString(const wchar_t *pwz, const 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
-        if (nLength == npos)
-            nLen = wxWcslen(pwz);
-        else
-            nLen = nLength;
-    }
-    else
-    {
-        // nothing to convert
-        nLen = 0;
-    }
-
     // anything to do?
-    if ( (nLen != 0) && (nLen != (size_t)-1) )
+    if ( pwz && nLength != 0 )
     {
-        //Convert string
-        size_t nRealSize;
-        wxCharBuffer theBuffer = conv.cWC2MB(pwz, nLen, &nRealSize);
+        if ( nLength == npos )
+        {
+            nLength = wxNO_LEN;
+        }
+
+        size_t nLenMB;
+        wxCharBuffer buf = conv.cWC2MB(pwz, nLength, &nLenMB);
 
-        //Copy
-        if (nRealSize)
-            assign( theBuffer.data() , nRealSize - 1 );
+        if ( nLenMB )
+            assign(buf, nLenMB);
     }
 }
 
 //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
+const wxWCharBuffer wxString::wc_str(const wxMBConv& conv) const
 {
-    size_t dwOutSize;
-    return conv.cMB2WC(c_str(), length(), &dwOutSize);
+    return conv.cMB2WC(c_str(), length() + 1 /* size, not length */, NULL);
 }
 
 #endif // wxUSE_WCHAR_T
@@ -1175,70 +1140,70 @@ wxString& wxString::operator=(const wchar_t *pwz)
 wxString operator+(const wxString& str1, const wxString& str2)
 {
 #if !wxUSE_STL
-  wxASSERT( str1.GetStringData()->IsValid() );
-  wxASSERT( str2.GetStringData()->IsValid() );
+    wxASSERT( str1.GetStringData()->IsValid() );
+    wxASSERT( str2.GetStringData()->IsValid() );
 #endif
 
-  wxString s = str1;
-  s += str2;
+    wxString s = str1;
+    s += str2;
 
-  return s;
+    return s;
 }
 
 wxString operator+(const wxString& str, wxChar ch)
 {
 #if !wxUSE_STL
-  wxASSERT( str.GetStringData()->IsValid() );
+    wxASSERT( str.GetStringData()->IsValid() );
 #endif
 
-  wxString s = str;
-  s += ch;
+    wxString s = str;
+    s += ch;
 
-  return s;
+    return s;
 }
 
 wxString operator+(wxChar ch, const wxString& str)
 {
 #if !wxUSE_STL
-  wxASSERT( str.GetStringData()->IsValid() );
+    wxASSERT( str.GetStringData()->IsValid() );
 #endif
 
-  wxString s = ch;
-  s += str;
+    wxString s = ch;
+    s += str;
 
-  return s;
+    return s;
 }
 
 wxString operator+(const wxString& str, const wxChar *psz)
 {
 #if !wxUSE_STL
-  wxASSERT( str.GetStringData()->IsValid() );
+    wxASSERT( str.GetStringData()->IsValid() );
 #endif
 
-  wxString s;
-  if ( !s.Alloc(wxStrlen(psz) + str.Len()) ) {
-    wxFAIL_MSG( _T("out of memory in wxString::operator+") );
-  }
-  s = str;
-  s += psz;
+    wxString s;
+    if ( !s.Alloc(wxStrlen(psz) + str.length()) ) {
+        wxFAIL_MSG( _T("out of memory in wxString::operator+") );
+    }
+    s += str;
+    s += psz;
 
-  return s;
+    return s;
 }
 
 wxString operator+(const wxChar *psz, const wxString& str)
 {
 #if !wxUSE_STL
-  wxASSERT( str.GetStringData()->IsValid() );
+    wxASSERT( str.GetStringData()->IsValid() );
 #endif
 
-  wxString s;
-  if ( !s.Alloc(wxStrlen(psz) + str.Len()) ) {
-    wxFAIL_MSG( _T("out of memory in wxString::operator+") );
-  }
-  s = psz;
-  s += str;
+    wxString s;
+    if ( !s.Alloc(wxStrlen(psz) + str.length()) ) {
+        wxFAIL_MSG( _T("out of memory in wxString::operator+") );
+    }
+    s = psz;
+    s += str;
 
-  return s;
+    return s;
 }
 
 // ===========================================================================
@@ -1371,32 +1336,33 @@ 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
@@ -1428,6 +1394,27 @@ bool wxString::StartsWith(const wxChar *prefix, wxString *rest) const
     return true;
 }
 
+
+// check that the string ends with suffix and return the rest of it in the
+// provided pointer if it is not NULL, otherwise return false
+bool wxString::EndsWith(const wxChar *suffix, wxString *rest) const
+{
+    wxASSERT_MSG( suffix, _T("invalid parameter in wxString::EndssWith") );
+
+    int start = length() - wxStrlen(suffix);
+    if ( start < 0 || wxStrcmp(c_str() + start, suffix) != 0 )
+        return false;
+
+    if ( rest )
+    {
+        // put the rest of the string into provided pointer
+        rest->assign(*this, 0, start);
+    }
+
+    return true;
+}
+
+
 // extract nCount last (rightmost) characters
 wxString wxString::Right(size_t nCount) const
 {
@@ -1502,55 +1489,46 @@ 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
@@ -1628,65 +1606,65 @@ inline int wxSafeIsspace(wxChar ch) { return (ch < 127) && wxIsspace(ch); }
 // trims spaces (in the sense of isspace) from left or right side
 wxString& wxString::Trim(bool bFromRight)
 {
-  // first check if we're going to modify the string at all
-  if ( !empty() &&
-       (
-        (bFromRight && wxSafeIsspace(GetChar(Len() - 1))) ||
-        (!bFromRight && wxSafeIsspace(GetChar(0u)))
+    // first check if we're going to modify the string at all
+    if ( !empty() &&
+         (
+          (bFromRight && wxSafeIsspace(GetChar(length() - 1))) ||
+          (!bFromRight && wxSafeIsspace(GetChar(0u)))
+         )
        )
-     )
-  {
-    if ( bFromRight )
     {
-      // find last non-space character
-      iterator psz = begin() + length() - 1;
-      while ( wxSafeIsspace(*psz) && (psz >= begin()) )
-        psz--;
-
-      // truncate at trailing space start
-      *++psz = wxT('\0');
-      erase(psz, end());
-    }
-    else
-    {
-      // find first non-space character
-      iterator psz = begin();
-      while ( wxSafeIsspace(*psz) )
-        psz++;
+        if ( bFromRight )
+        {
+            // find last non-space character
+            reverse_iterator psz = rbegin();
+            while ( (psz != rend()) && wxSafeIsspace(*psz) )
+                psz++;
+            
+            // truncate at trailing space start
+            erase(psz.base(), end());
+        }
+        else
+        {
+            // find first non-space character
+            iterator psz = begin();
+            while ( (psz != end()) && wxSafeIsspace(*psz) )
+                psz++;
 
-      // fix up data and length
-      erase(begin(), psz);
+            // fix up data and length
+            erase(begin(), psz);
+        }
     }
-  }
 
-  return *this;
+    return *this;
 }
 
 // adds nCount characters chPad to the string from either side
 wxString& wxString::Pad(size_t nCount, wxChar chPad, bool bFromRight)
 {
-  wxString s(chPad, nCount);
+    wxString s(chPad, nCount);
 
-  if ( bFromRight )
-    *this += s;
-  else
-  {
-    s += *this;
-    swap(s);
-  }
+    if ( bFromRight )
+        *this += s;
+    else
+    {
+        s += *this;
+        swap(s);
+    }
 
-  return *this;
+    return *this;
 }
 
 // truncate the string
 wxString& wxString::Truncate(size_t uiLen)
 {
-  if ( uiLen < Len() ) {
-    erase(begin() + uiLen, end());
-  }
-  //else: nothing to do, string is already short enough
+    if ( uiLen < length() )
+    {
+        erase(begin() + uiLen, end());
+    }
+    //else: nothing to do, string is already short enough
 
-  return *this;
+    return *this;
 }
 
 // ---------------------------------------------------------------------------
@@ -1696,17 +1674,17 @@ wxString& wxString::Truncate(size_t uiLen)
 // find a character
 int wxString::Find(wxChar ch, bool bFromEnd) const
 {
-  size_type idx = bFromEnd ? find_last_of(ch) : find_first_of(ch);
+    size_type idx = bFromEnd ? find_last_of(ch) : find_first_of(ch);
 
-  return (idx == npos) ? wxNOT_FOUND : (int)idx;
+    return (idx == npos) ? wxNOT_FOUND : (int)idx;
 }
 
 // find a sub-string (like strstr)
 int wxString::Find(const wxChar *pszSub) const
 {
-  size_type idx = find(pszSub);
+    size_type idx = find(pszSub);
 
-  return (idx == npos) ? wxNOT_FOUND : (int)idx;
+    return (idx == npos) ? wxNOT_FOUND : (int)idx;
 }
 
 // ----------------------------------------------------------------------------
@@ -1782,63 +1760,66 @@ 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;
+
+        if ( !buf )
         {
-            wxStringBuffer tmp(*this, size + 1);
-            wxChar* buf = tmp;
+            // out of memory
+            return -1;
+        }
 
-            if ( !buf )
-            {
-                // out of memory
-                return -1;
-            }
+        // 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);
 
-            // wxVsnprintf() may modify the original arg pointer, so pass it
-            // only a copy
-            va_list argptrcopy;
-            wxVaCopy(argptrcopy, argptr);
-            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
-        // buffer were large enough
-        if ( len >= 0 && len <= size )
+        // buffer were large enough (newer standards such as Unix98)
+        if ( len < 0 )
+        {
+            // still not enough, as we don't know how much we need, double the
+            // current size of the buffer
+            size *= 2;
+        }
+        else if ( len > size )
+        {
+            size = len;
+        }
+        else // ok, there was enough space
         {
-            // ok, there was enough space
             break;
         }
-
-        // still not enough, double it again
-        size *= 2;
     }
 
     // we could have overshot
     Shrink();
 
-    return Len();
+    return length();
 }
 
 // ----------------------------------------------------------------------------
@@ -1987,7 +1968,7 @@ match:
 int wxString::Freq(wxChar ch) const
 {
     int count = 0;
-    int len = Len();
+    int len = length();
     for (int i = 0; i < len; i++)
     {
         if (GetChar(i) == ch)
@@ -2018,6 +1999,24 @@ 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)
@@ -2398,19 +2397,7 @@ void wxArrayString::assign(const_iterator first, const_iterator last)
 #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()
+  static wxCriticalSection gs_critsectStringSort;
 #endif // wxUSE_THREADS
 
 // function to use for string comparaison
@@ -2441,7 +2428,7 @@ wxStringCompareFunction(const void *first, const void *second)
 // sort array elements using passed comparaison function
 void wxArrayString::Sort(CompareFunction compareFunction)
 {
-  START_SORT();
+  wxCRIT_SECT_LOCKER(lockCmpFunc, gs_critsectStringSort);
 
   wxASSERT( !gs_compareFunction );  // must have been reset to NULL
   gs_compareFunction = compareFunction;
@@ -2450,11 +2437,13 @@ void wxArrayString::Sort(CompareFunction compareFunction)
 
   // reset it to NULL so that Sort(bool) will work the next time
   gs_compareFunction = NULL;
-
-  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)
 {