#+Title: a collection of examples for Babel tests

* =:noweb= header argument expansion
  :PROPERTIES:
  :ID:       eb1f6498-5bd9-45e0-9c56-50717053e7b7
  :END:

#+source: noweb-example
#+begin_src emacs-lisp
  (message "expanded")
#+end_src

#+begin_src emacs-lisp :noweb yes
  ;; noweb-yes-start
  <<noweb-example>>
  ;; noweb-yes-end
#+end_src

#+begin_src emacs-lisp :noweb no
  ;; noweb-no-start
  <<noweb-example>>
  ;; noweb-no-end
#+end_src

#+begin_src emacs-lisp :noweb tangle
  ;; noweb-tangle-start
  <<noweb-example>>
  ;; noweb-tangle-end
#+end_src

* elisp forms in header arguments
  :PROPERTIES:
  :ID:       22d67284-bf14-4cdc-8319-f4bd876829d7
  :var:      prop=(+ 2 2)
  :END:

#+begin_src emacs-lisp
  prop
#+end_src

#+results:
: 4