Simplify code using xerces namespace

src/Base/InputSource.cpp

@@ -36,13 +36,6 @@
 #include "InputSource.h"
 #include "XMLTools.h"
 
-#ifndef XERCES_CPP_NAMESPACE_BEGIN
-# define XERCES_CPP_NAMESPACE_QUALIFIER
-using namespace XERCES_CPP_NAMESPACE;
-#else
-XERCES_CPP_NAMESPACE_USE
-#endif
-
 using namespace Base;
 using namespace std;
 
@@ -113,10 +106,7 @@ struct StdInputStream::TextCodec
 };
 #endif
 
-StdInputStream::StdInputStream(
-    std::istream& Stream,
-    XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager* const manager
-)
+StdInputStream::StdInputStream(std::istream& Stream, XERCES_CPP_NAMESPACE::MemoryManager* const manager)
     : stream(Stream)
     , codec(new TextCodec)
 {
@@ -157,7 +147,7 @@ XMLSize_t StdInputStream::readBytes(XMLByte* const toFill, const XMLSize_t maxTo
 StdInputSource::StdInputSource(
     std::istream& Stream,
     const char* filePath,
-    XERCES_CPP_NAMESPACE_QUALIFIER MemoryManager* const manager
+    XERCES_CPP_NAMESPACE::MemoryManager* const manager
 )
     : InputSource(manager)
     , stream(Stream)
@@ -174,7 +164,7 @@ StdInputSource::~StdInputSource() = default;
 // ---------------------------------------------------------------------------
 //  StdInputSource: InputSource interface implementation
 // ---------------------------------------------------------------------------
-BinInputStream* StdInputSource::makeStream() const
+XERCES_CPP_NAMESPACE::BinInputStream* StdInputSource::makeStream() const
 {
     StdInputStream* retStrm = new StdInputStream(stream /*, getMemoryManager()*/);
     return retStrm;