New library lib-strings for Identifier and internationalization

libraries/lib-strings/wxArrayStringEx.h

@@ -0,0 +1,73 @@
+/**********************************************************************
+ 
+ Audacity: A Digital Audio Editor
+ 
+ @file wxArrayStringEx.h
+ 
+ Paul Licameli split from MemoryX.h
+ 
+ **********************************************************************/
+
+#ifndef __AUDACITY_WX_ARRAY_STRING_EX__
+#define __AUDACITY_WX_ARRAY_STRING_EX__
+
+#include <wx/arrstr.h>
+
+//! Extend wxArrayString with move operations and construction and insertion fromstd::initializer_list
+class wxArrayStringEx : public wxArrayString
+{
+public:
+   using wxArrayString::wxArrayString;
+   wxArrayStringEx() = default;
+
+   template< typename Iterator >
+   wxArrayStringEx( Iterator start, Iterator finish )
+   {
+      this->reserve( std::distance( start, finish ) );
+      while( start != finish )
+         this->push_back( *start++ );
+   }
+
+   template< typename T >
+   wxArrayStringEx( std::initializer_list< T > items )
+   {
+      this->reserve( this->size() + items.size() );
+      for ( const auto &item : items )
+         this->push_back( item );
+   }
+
+   //! The move operations can take arguments of the base class wxArrayString
+   wxArrayStringEx( wxArrayString &&other )
+   {
+      swap( other );
+   }
+
+   //! The move operations can take arguments of the base class wxArrayString
+   wxArrayStringEx &operator= ( wxArrayString &&other )
+   {
+      if ( this != &other ) {
+         clear();
+         swap( other );
+      }
+      return *this;
+   }
+
+   using wxArrayString::insert;
+
+   template< typename T >
+   iterator insert( const_iterator pos, std::initializer_list< T > items )
+   {
+      const auto index = pos - ((const wxArrayString*)this)->begin();
+      this->wxArrayString::Insert( {}, index, items.size() );
+      auto result = this->begin() + index, iter = result;
+      for ( auto pItem = items.begin(), pEnd = items.end();
+         pItem != pEnd;
+         ++pItem, ++iter
+      ) {
+         *iter = *pItem;
+      }
+      return result;
+   }
+};
+
+#endif