- // file should be opened and we must be in it's beginning
- wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 );
-
-#if wxUSE_UNICODE
- char conv_mbBuf[2];
- wchar_t conv_wcBuf[2];
- conv_mbBuf[1] = 0;
-#else
- (void)conv;
-#endif
-
- wxString str;
- char ch, chLast = '\0';
- char buf[1024];
- int n, nRead;
- do {
- nRead = m_file.Read(buf, WXSIZEOF(buf));
- if ( nRead == wxInvalidOffset ) {
- // read error (error message already given in wxFile::Read)
- return FALSE;
+ // file should be opened and we must be in it's beginning
+ wxASSERT( m_file.IsOpened() && m_file.Tell() == 0 );
+
+ char *strBuf, *strPtr, *strEnd;
+ char ch, chLast = '\0';
+ char buf[1024];
+ int n, nRead;
+
+ strPtr = strBuf = new char[1024];
+ strEnd = strBuf + 1024;
+
+ do
+ {
+ nRead = m_file.Read(buf, WXSIZEOF(buf));
+ if ( nRead == wxInvalidOffset )
+ {
+ // read error (error message already given in wxFile::Read)
+ delete[] strBuf;
+ return FALSE;
+ }
+
+ for (n = 0; n < nRead; n++)
+ {
+ ch = buf[n];
+ switch ( ch )
+ {
+ case '\n':
+ // Dos/Unix line termination
+ *strPtr = '\0';
+ AddLine(wxString(strBuf, conv),
+ chLast == '\r' ? wxTextFileType_Dos
+ : wxTextFileType_Unix);
+ strPtr = strBuf;
+ chLast = '\n';
+ break;
+
+ case '\r':
+ if ( chLast == '\r' )
+ {
+ // Mac empty line
+ AddLine(wxEmptyString, wxTextFileType_Mac);
+ }
+ else
+ chLast = '\r';
+ break;
+
+ default:
+ if ( chLast == '\r' )
+ {
+ // Mac line termination
+ *strPtr = '\0';
+ AddLine(wxString(strBuf, conv), wxTextFileType_Mac);
+ chLast = ch;
+ strPtr = strBuf;
+ *(strPtr++) = ch;
+ }
+ else
+ {
+ // add to the current line
+ *(strPtr++) = ch;
+ if ( strPtr == strEnd )
+ {
+ // we must allocate more memory
+ size_t size = strEnd - strBuf;
+ char *newBuf = new char[size + 1024];
+ memcpy(newBuf, strBuf, size);
+ delete[] strBuf;
+ strBuf = newBuf;
+ strEnd = strBuf + size + 1024;
+ strPtr = strBuf + size;
+ }
+ }
+ }
+ }
+ } while ( nRead == WXSIZEOF(buf) );
+
+ // anything in the last line?
+ if ( strPtr != strBuf )
+ {
+ *strPtr = '\0';
+ AddLine(wxString(strBuf, conv),
+ wxTextFileType_None); // no line terminator