New library lib-strings for Identifier and internationalization

libraries/lib-strings/Identifier.cpp

@@ -0,0 +1,32 @@
+/**********************************************************************
+ 
+ Audacity: A Digital Audio Editor
+ 
+ Identifier.cpp
+ 
+ Paul Licameli split from Internat.cpp
+ 
+ **********************************************************************/
+
+#include "Identifier.h"
+#include <wx/arrstr.h> // for wxSplit
+
+Identifier::Identifier(
+   std::initializer_list<Identifier> components, wxChar separator )
+{
+   if( components.size() < 2 )
+   {
+      wxASSERT( false );
+      return;
+   }
+   auto iter = components.begin(), end = components.end();
+   value = (*iter++).value;
+   while (iter != end)
+      value += separator + (*iter++).value;
+}
+
+std::vector< Identifier > Identifier::split( wxChar separator ) const
+{
+   auto strings = ::wxSplit( value, separator );
+   return { strings.begin(), strings.end() };
+}