Proper fix for remove_whitespace iterator and older boost

The previous "fix" was resulting in exceptions in some vdx files.

Change-Id: I961560b66bc29660daca54e39f14f612bbb50e34

libvisio/libvisio-0.0.29-remove_whitespace.patch.1

 --- a/src/lib/libvisio_utils.cpp
 +++ b/src/lib/libvisio_utils.cpp
-@@ -33,7 +33,6 @@
- #include "libvisio_utils.h"
+@@ -123,14 +123,15 @@ double libvisio::readDouble(WPXInputStream *input)
+   return tmpUnion.d;
+ }
  
- #include <boost/archive/iterators/binary_from_base64.hpp>
--#include <boost/archive/iterators/remove_whitespace.hpp>
- #include <boost/archive/iterators/transform_width.hpp>
- 
- uint8_t libvisio::readU8(WPXInputStream *input)
-@@ -126,8 +125,7 @@ double libvisio::readDouble(WPXInputStream *input)
- void libvisio::appendFromBase64(WPXBinaryData &data, const unsigned char *base64String, size_t base64StringLength)
+-void libvisio::appendFromBase64(WPXBinaryData &data, const unsigned char *base64String, size_t base64StringLength)
++void libvisio::appendFromBase64(WPXBinaryData &data, const unsigned char *base64Data, size_t base64DataLength)
  {
++  std::string base64String((const char*)base64Data, base64DataLength);
    typedef boost::archive::iterators::transform_width<
--  boost::archive::iterators::binary_from_base64<
+   boost::archive::iterators::binary_from_base64<
 -  boost::archive::iterators::remove_whitespace< const char * > >, 8, 6 > base64_decoder;
-+  boost::archive::iterators::binary_from_base64< const char * >, 8, 6 > base64_decoder;
++  boost::archive::iterators::remove_whitespace< std::string::const_iterator > >, 8, 6 > base64_decoder;
  
    std::vector<unsigned char> buffer;
-   std::copy(base64_decoder(base64String), base64_decoder(base64String + base64StringLength), std::back_inserter(buffer));
+-  std::copy(base64_decoder(base64String), base64_decoder(base64String + base64StringLength), std::back_inserter(buffer));
++  std::copy(base64_decoder(base64String.begin()), base64_decoder(base64String.end()), std::back_inserter(buffer));
+ 
+   if (!buffer.empty())
+     data.append(&buffer[0], buffer.size());
+--- a/src/lib/libvisio_utils.h
++++ b/src/lib/libvisio_utils.h
+@@ -98,7 +98,7 @@ uint64_t readU64(WPXInputStream *input);
+ 
+ double readDouble(WPXInputStream *input);
+ 
+-void appendFromBase64(WPXBinaryData &data, const unsigned char *base64String, size_t base64StringLength);
++void appendFromBase64(WPXBinaryData &data, const unsigned char *base64Data, size_t base64DataLength);
+ 
+ const ::WPXString getColourString(const Colour &c);
+