Standalone tags should not require a newline to follow them.

src/template_type.cpp

@@ -39,6 +39,10 @@ void template_type::tokenize(const std::string& tmp) {
       cur_pos = close_pos + close.size();
       tokens.push_back({{beg + open_pos, beg + close_pos + close.size()},
           open.size(), close.size()});
+      if(cur_pos == tmp.size()) {
+        tokens.push_back({{""}});
+        tokens.back().set_eol(true);
+      }
 
       if (*(beg + open_pos + open.size()) == '=' &&
           *(beg + close_pos - 1) == '=')

src/token.hpp

@@ -16,6 +16,7 @@ class token {
   const std::string& name() const { return m_name; };
   bool eol() const { return m_eol; }
   bool ws_only() const { return m_ws_only; }
+  void set_eol(bool eol) { m_eol = eol; }
 
  private:
   type m_type;