(defun open-buffer-with (txt buff)
  "create a new buffer with 'buff' name, insert 'txt'"
  (pop-to-buffer (get-buffer-create (generate-new-buffer-name buff)))
  (insert txt))

(defun map-header-template (namespace)
  ;; create header template
  (interactive "sNamespace: ")
  (let* ((class (file-name-sans-extension (buffer-name)))
	 (header (concat "/**\n"
	  " * author: Martin Kodovsky\n"
	  " */\n"
	  "\n#pragma once\n"
	  "\n#include <string>\n"
	  "\nnamespace MapApp\n{\n"
	  "\tnamespace " namespace "\n\t{\n"
	  "\t\tclass " class "\n\t\t{\n\t\tpublic:\n\t\tprivate:\n\t\t};"
	  "\n\t}\n"
	  "}"
	  ))
	 (body (concat "#include \"" (buffer-name) "\""
		       "\n\nnamespace MapApp\n{\n"
		       "\tnamespace " namespace "\n\t{\n"
		       "\t\t" class "::" class "()\n\t\t{\n\t\t}"
		        "\n\t}\n"
			"}"
		)))
    (progn
      (insert header)
      (open-buffer-with body (concat (file-name-sans-extension buffer-file-name) ".cpp"))
      )))