X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0ad76eea22da59402cfe063f0c41803e5dce277a..2bcada5f33151d366b9d4c9e5e37c706dab23b27:/src/common/txtstrm.cpp

diff --git a/src/common/txtstrm.cpp b/src/common/txtstrm.cpp
index 4792c10cce..9408345960 100644
--- a/src/common/txtstrm.cpp
+++ b/src/common/txtstrm.cpp
@@ -18,22 +18,14 @@
 
 #if wxUSE_STREAMS
 
+#include "wx/txtstrm.h"
+
 #ifndef WX_PRECOMP
     #include "wx/crt.h"
 #endif
 
-#include "wx/txtstrm.h"
 #include <ctype.h>
 
-
-// ----------------------------------------------------------------------------
-// constants
-// ----------------------------------------------------------------------------
-
-// Unix: "\n"
-// Dos:  "\r\n"
-// Mac:  "\r"
-
 // ----------------------------------------------------------------------------
 // wxTextInputStream
 // ----------------------------------------------------------------------------
@@ -83,11 +75,35 @@ wxChar wxTextInputStream::NextChar()
         if(m_input.LastRead() <= 0)
             return wxEOT;
 
-        if ( m_conv->ToWChar(wbuf, WXSIZEOF(wbuf), m_lastBytes, inlen + 1)
-                != wxCONV_FAILED )
-            return wbuf[0];
+        switch ( m_conv->ToWChar(wbuf, WXSIZEOF(wbuf), m_lastBytes, inlen + 1) )
+        {
+            case 0:
+                // this is a bug in converter object as it should either fail
+                // or decode non-empty string to something non-empty
+                wxFAIL_MSG("ToWChar() can't return 0 for non-empty input");
+                break;
+
+            case wxCONV_FAILED:
+                // the buffer probably doesn't contain enough bytes to decode
+                // as a complete character, try with more bytes
+                break;
+
+            default:
+                // if we couldn't decode a single character during the last
+                // loop iteration we shouldn't be able to decode 2 or more of
+                // them with an extra single byte, something fishy is going on
+                wxFAIL_MSG("unexpected decoding result");
+                // fall through nevertheless and return at least something
+
+            case 1:
+                // we finally decoded a character
+                return wbuf[0];
+        }
     }
-    // there should be no encoding which requires more than nine bytes for one character...
+
+    // there should be no encoding which requires more than nine bytes for one
+    // character so something must be wrong with our conversion but we have no
+    // way to signal it from here
     return wxEOT;
 #else
     m_lastBytes[0] = m_input.GetC();
@@ -109,7 +125,7 @@ wxChar wxTextInputStream::NextNonSeparators()
 
         if (c != wxT('\n') &&
             c != wxT('\r') &&
-            !m_separators.Contains(c))
+            m_separators.Find(c) < 0)
           return c;
     }
 
@@ -133,7 +149,7 @@ bool wxTextInputStream::EatEOL(const wxChar &c)
 
 wxUint32 wxTextInputStream::Read32(int base)
 {
-    wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );
     if(!m_input) return 0;
 
     wxString word = ReadWord();
@@ -154,7 +170,7 @@ wxUint8 wxTextInputStream::Read8(int base)
 
 wxInt32 wxTextInputStream::Read32S(int base)
 {
-    wxASSERT_MSG( !base || (base > 1 && base <= 36), _T("invalid base") );
+    wxASSERT_MSG( !base || (base > 1 && base <= 36), wxT("invalid base") );
     if(!m_input) return 0;
 
     wxString word = ReadWord();
@@ -229,7 +245,7 @@ wxString wxTextInputStream::ReadWord()
         if(c == wxEOT)
             break;
 
-        if (m_separators.Contains(c))
+        if (m_separators.Find(c) >= 0)
             break;
 
         if (EatEOL(c))
@@ -395,15 +411,15 @@ void wxTextOutputStream::WriteString(const wxString& string)
             switch ( m_mode )
             {
                 case wxEOL_DOS:
-                    out << _T("\r\n");
+                    out << wxT("\r\n");
                     continue;
 
                 case wxEOL_MAC:
-                    out << _T('\r');
+                    out << wxT('\r');
                     continue;
 
                 default:
-                    wxFAIL_MSG( _T("unknown EOL mode in wxTextOutputStream") );
+                    wxFAIL_MSG( wxT("unknown EOL mode in wxTextOutputStream") );
                     // fall through
 
                 case wxEOL_UNIX:
@@ -434,6 +450,19 @@ wxTextOutputStream& wxTextOutputStream::PutChar(wxChar c)
     return *this;
 }
 
+void wxTextOutputStream::Flush()
+{
+#if wxUSE_UNICODE
+    const size_t len = m_conv->FromWChar(NULL, 0, L"", 1);
+    if ( len > m_conv->GetMBNulLen() )
+    {
+        wxCharBuffer buf(len);
+        m_conv->FromWChar(buf.data(), len, L"", 1);
+        m_output.Write(buf, len - m_conv->GetMBNulLen());
+    }
+#endif // wxUSE_UNICODE
+}
+
 wxTextOutputStream& wxTextOutputStream::operator<<(const wxString& string)
 {
     WriteString( string );