New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/search/token_slice.cpp

@@ -0,0 +1,58 @@
+#include "search/token_slice.hpp"
+
+#include <sstream>
+
+namespace search
+{
+using namespace std;
+
+namespace
+{
+template <typename Slice>
+string SliceToString(string const & name, Slice const & slice)
+{
+  ostringstream os;
+  os << name << " [";
+  for (size_t i = 0; i < slice.Size(); ++i)
+  {
+    os << DebugPrint(slice.Get(i));
+    if (i + 1 != slice.Size())
+      os << ", ";
+  }
+  os << "]";
+  return os.str();
+}
+}  // namespace
+
+// TokenSlice --------------------------------------------------------------------------------------
+TokenSlice::TokenSlice(QueryParams const & params, TokenRange const & range)
+  : m_params(params), m_offset(range.Begin()), m_size(range.Size())
+{
+  ASSERT(range.IsValid(), (range));
+}
+
+bool TokenSlice::IsPrefix(size_t i) const
+{
+  ASSERT_LESS(i, Size(), ());
+  return m_params.IsPrefixToken(m_offset + i);
+}
+
+// TokenSliceNoCategories --------------------------------------------------------------------------
+TokenSliceNoCategories::TokenSliceNoCategories(QueryParams const & params, TokenRange const & range)
+  : m_params(params)
+{
+  m_indexes.reserve(range.Size());
+  for (size_t i : range)
+  {
+    if (!m_params.IsCategorySynonym(i))
+      m_indexes.push_back(i);
+  }
+}
+
+string DebugPrint(TokenSlice const & slice) { return SliceToString("TokenSlice", slice); }
+
+string DebugPrint(TokenSliceNoCategories const & slice)
+{
+  return SliceToString("TokenSliceNoCategories", slice);
+}
+}  // namespace search