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name: testing/examples/babel.org 	 # note: path name is non-authoritative(*)

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#+Title: a collection of examples for Babel tests
#+OPTIONS: ^:nil

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

#+name: noweb-example
#+begin_src emacs-lisp :results silent :exports code
  (message "expanded1")
#+end_src

#+name: noweb-example2
#+begin_src emacs-lisp :results silent
  (message "expanded2")
#+end_src

#+begin_src emacs-lisp :noweb yes :results silent
;; noweb-1-yes-start
  <<noweb-example>>
#+end_src

#+begin_src emacs-lisp :noweb no  :results silent
;; noweb-no-start
  <<noweb-example1>>
#+end_src

#+begin_src emacs-lisp :noweb yes :results silent
;; noweb-2-yes-start
  <<noweb-example2>>
#+end_src

#+begin_src emacs-lisp :noweb tangle :results silent
  ;; noweb-tangle-start
  <<noweb-example1>>
  <<noweb-example2>>
#+end_src

* =:noweb= header argument expansion using :exports results
  :PROPERTIES:
  :ID:       8701beb4-13d9-468c-997a-8e63e8b66f8d
  :END:

#+name: noweb-example
#+begin_src emacs-lisp :exports results
  (message "expanded1")
#+end_src

#+name: noweb-example2
#+begin_src emacs-lisp :exports results
  (message "expanded2")
#+end_src

#+begin_src emacs-lisp :noweb yes :exports results
;; noweb-1-yes-start
  <<noweb-example>>
#+end_src

#+begin_src emacs-lisp :noweb no :exports code
;; noweb-no-start
  <<noweb-example1>>
#+end_src

#+begin_src emacs-lisp :noweb yes :exports results
;; noweb-2-yes-start
  <<noweb-example2>>
#+end_src

#+begin_src emacs-lisp :noweb tangle :exports code
  <<noweb-example1>>
  <<noweb-example2>>
#+end_src

* excessive id links on tangling
  :PROPERTIES:
  :ID:       ef06fd7f-012b-4fde-87a2-2ae91504ea7e
  :END:

** no, don't give me an ID
#+begin_src emacs-lisp :tangle no
  (message "not to be tangled")
#+end_src

** yes, I'd love an ID
   :PROPERTIES:
   :ID:       ae7b55ca-9ef2-4d30-bd48-da30e35fd0f3
   :END:
#+begin_src emacs-lisp :tangle no
  (message "for tangling")
#+end_src
* simple named code block
  :PROPERTIES:
  :ID:       0d82b52d-1bb9-4916-816b-2c67c8108dbb
  :END:

#+name: i-have-a-name
#+begin_src emacs-lisp
  42
#+end_src

#+name:
: 42

#+name: i-have-a-name
: 42

* Pascal's Triangle -- exports both test
  :PROPERTIES:
  :ID:       92518f2a-a46a-4205-a3ab-bcce1008a4bb
  :END:

#+name: pascals-triangle
#+begin_src emacs-lisp :var n=5 :exports both
  (require 'cl)
  (defalias 'my-map (if (org-version-check "24.2.50" "cl" :predicate)
                        'cl-map
                      'map))
  (defun pascals-triangle (n)
    (if (= n 0)
        (list (list 1))
      (let* ((prev-triangle (pascals-triangle (- n 1)))
             (prev-row (car (reverse prev-triangle))))
        (append prev-triangle
                (list (my-map 'list #'+
                              (append prev-row '(0))
                              (append '(0) prev-row)))))))
  
  (pascals-triangle n)
#+end_src

* calling code blocks from inside table
  :PROPERTIES:
  :ID:       6d2ff4ce-4489-4e2a-9c65-e3f71f77d975
  :END:

#+name: take-sqrt
#+begin_src emacs-lisp :var n=9
  (sqrt n)
#+end_src

* executing an lob call line
  :PROPERTIES:
  :results:  silent
  :ID:       fab7e291-fde6-45fc-bf6e-a485b8bca2f0
  :END:

#+call: echo(input="testing")
#+call: echo(input="testing") :results vector
#+call: echo[:var input="testing"]()
#+call: echo[:var input="testing"]() :results vector
#+call: echo("testing")
#+call: echo("testing") :results vector
This is an inline call call_echo(input="testing") embedded in prose.
This is an inline call call_echo(input="testing")[:results vector] embedded in prose.
#+call: lob-minus(8, 4)
call_echo("testing")
call_concat(1,2,3)

#+name: concat
#+begin_src emacs-lisp :var a=0 :var b=0 :var c=0
  (format "%S%S%S" a b c)
#+end_src

* exporting an lob call line
  :PROPERTIES:
  :ID:       72ddeed3-2d17-4c7f-8192-a575d535d3fc
  :END:

#+name: double
#+begin_src emacs-lisp :var it=0
  (* 2 it)
#+end_src

The following exports as a normal call line
#+call: double(it=0)

Now here is an inline call call_double(it=1) stuck in the middle of
some prose.

This one should not be exported =call_double(it=2)= because it is
quoted.

Finally this next one should export, even though it starts a line
call_double(it=3) because sometimes inline blocks fold with a
paragraph.

And, a call with raw results call_double(4)[:results raw] should not
have quoted results.

The following 2*5=call_double(5) should export even when prefixed by
an = sign.

* inline source block
  :PROPERTIES:
  :results:  silent
  :ID:       54cb8dc3-298c-4883-a933-029b3c9d4b18
  :END:
Here is one in the middle src_sh{echo 1} of a line.
Here is one at the end of a line. src_sh{echo 2}
src_sh{echo 3} Here is one at the beginning of a line.

* mixed blocks with exports both
  :PROPERTIES:
  :ID:       5daa4d03-e3ea-46b7-b093-62c1b7632df3
  :END:

#+name: a-list
- a
- b
- c

#+begin_src emacs-lisp :exports both
    "code block results"
#+end_src

#+begin_src emacs-lisp :var lst=a-list :results list :exports both
  (reverse lst)
#+end_src

* using the =:noweb-ref= header argument
  :PROPERTIES:
  :ID:       54d68d4b-1544-4745-85ab-4f03b3cbd8a0
  :noweb-sep: ""
  :END:

#+begin_src sh :tangle yes :noweb yes :shebang "#!/bin/sh"
  <<fullest-disk>>
#+end_src

** query all mounted disks
#+begin_src sh :noweb-ref fullest-disk
  df
#+end_src

** strip the header row
#+begin_src sh :noweb-ref fullest-disk
  |sed '1d'
#+end_src

** sort by the percent full
#+begin_src sh :noweb-ref fullest-disk
  |awk '{print $5 " " $6}'|sort -n |tail -1
#+end_src

** extract the mount point
#+begin_src sh :noweb-ref fullest-disk
  |awk '{print $2}'
#+end_src
* resolving sub-trees as references
  :PROPERTIES:
  :ID:       2409e8ba-7b5f-4678-8888-e48aa02d8cb4
  :results:  silent
  :END:

#+begin_src emacs-lisp :var text=d4faa7b3-072b-4dcf-813c-dd7141c633f3
  (length text)
#+end_src

#+begin_src org :noweb yes
  <<simple-subtree>>
  <<d4faa7b3-072b-4dcf-813c-dd7141c633f3>>
#+end_src

** simple subtree with custom ID
   :PROPERTIES:
   :CUSTOM_ID: simple-subtree
   :END:
this is simple

** simple subtree with global ID
   :PROPERTIES:
   :ID:       d4faa7b3-072b-4dcf-813c-dd7141c633f3
   :END:
has length 14

* org-babel-get-inline-src-block-matches
  :PROPERTIES:
  :results:  silent
  :ID:       0D0983D4-DE33-400A-8A05-A225A567BC74
  :END:
src_sh{echo "One"} block at start of line
 One spaced block in  src_sh{ echo "middle" } of line
src_sh{echo 2} blocks on the src_emacs-lisp{"same"} line
 Inline block with src_sh[:results silent]{ echo "parameters" }.
* exporting a code block with a name
  :PROPERTIES:
  :ID:       b02ddd8a-eeb8-42ab-8664-8a759e6f43d9
  :END:

exporting a code block with a name
#+name: qux
#+begin_src sh :foo "baz"
  echo bar
#+end_src
* noweb no-export and exports both
  :PROPERTIES:
  :ID:       8a820f6c-7980-43db-8a24-0710d33729c9
  :END:
Weird interaction.

here is one block

#+name: noweb-no-export-and-exports-both-1
#+BEGIN_SRC sh :exports none
  echo 1
#+END_SRC

and another

#+BEGIN_SRC sh :noweb no-export :exports both
  # I am inside the code block
  <<noweb-no-export-and-exports-both-1>>
#+END_SRC

* in order evaluation on export
  :PROPERTIES:
  :exports: results
  :ID:       96cc7073-97ec-4556-87cf-1f9bffafd317
  :END:

First.
#+name: foo-for-order-of-evaluation
#+begin_src emacs-lisp :var it=1
  (push it *evaluation-collector*)
#+end_src

Second
#+begin_src emacs-lisp
  (push 2 *evaluation-collector*)
#+end_src

Third src_emacs-lisp{(push 3 *evaluation-collector*)}

Fourth
#+call: foo-for-order-of-evaluation(4)

Fifth
#+begin_src emacs-lisp
  (push 5 *evaluation-collector*)
#+end_src
* exporting more than just results from a call line
  :PROPERTIES:
  :ID:       bec63a04-491e-4caa-97f5-108f3020365c
  :END:
Here is a call line with more than just the results exported.
#+call: double(8)
* strip noweb references on export
  :PROPERTIES:
  :ID:       8e7bd234-99b2-4b14-8cd6-53945e409775
  :END:

#+name: strip-export-1
#+BEGIN_SRC sh :exports none
  i="10"
#+END_SRC

#+BEGIN_SRC sh :noweb strip-export :exports code :results silent
  <<strip-export-1>>
  echo "1$i"
#+END_SRC

* use case of reading entry properties
  :PROPERTIES:
  :ID:       cc5fbc20-bca5-437a-a7b8-2b4d7a03f820
  :END:

Use case checked and documented with this test: During their
evaluation the source blocks read values from properties from the
entry where the call has been made unless the value is overridden with
the optional argument of the caller.

** section
   :PROPERTIES:
   :a:        1
   :c:        3
   :END:

Note: Just export of a property can be done with a macro: {{{property(a)}}}.

#+NAME: src_block_location_shell sect call
#+CALL: src_block_location_shell()

#+NAME: src_block_location_elisp sect call
#+CALL: src_block_location_elisp()

- sect inline call_src_block_location_shell()
- sect inline call_src_block_location_elisp()

*** subsection
    :PROPERTIES:
    :b:        2
    :c:        4
    :END:

#+NAME: src_block_location_shell sub0 call
#+CALL: src_block_location_shell()

#+NAME: src_block_location_elisp sub0 call
#+CALL: src_block_location_elisp()

- sub0 inline call_src_block_location_shell()
- sub0 inline call_src_block_location_elisp()

#+NAME: src_block_location_shell sub1 call
#+CALL: src_block_location_shell(c=5, e=6)

#+NAME: src_block_location_elisp sub1 call
#+CALL: src_block_location_elisp(c=5, e=6)

- sub1 inline call_src_block_location_shell(c=5, e=6)
- sub1 inline call_src_block_location_elisp(c=5, e=6)

**** function definition

comments for ":var":
- The "or" is to deal with a property not present.
- The t is to get property inheritance.
#+NAME: src_block_location_shell
#+HEADER: :var a=(or (org-entry-get org-babel-current-src-block-location "a" t) "0")
#+HEADER: :var b=(or (org-entry-get org-babel-current-src-block-location "b" t) "0")
#+HEADER: :var c=(or (org-entry-get org-babel-current-src-block-location "c" t) "0")
#+HEADER: :var d=(or (org-entry-get org-babel-current-src-block-location "d" t) "0")
#+HEADER: :var e=(or (org-entry-get org-babel-current-src-block-location "e" t) "0")
#+BEGIN_SRC sh :shebang #!/bin/sh :exports results :results verbatim
  printf "shell a:$a, b:$b, c:$c, d:$d, e:$e"
#+END_SRC

#+RESULTS: src_block_location_shell

#+NAME: src_block_location_elisp
#+HEADER: :var a='nil
#+HEADER: :var b='nil
#+HEADER: :var c='nil
#+HEADER: :var d='nil
#+HEADER: :var e='nil
#+BEGIN_SRC emacs-lisp :exports results
  (setq
   ;; - The first `or' together with ":var <var>='nil" is to check for
   ;;   a value bound from an optional call argument, in the examples
   ;;   here: c=5, e=6
   ;; - The second `or' is to deal with a property not present
   ;; - The t is to get property inheritance
   a (or a (string-to-number
            (or (org-entry-get org-babel-current-src-block-location "a" t)
                "0")))
   b (or b (string-to-number
            (or (org-entry-get org-babel-current-src-block-location "b" t)
                "0")))
   c (or c (string-to-number
            (or (org-entry-get org-babel-current-src-block-location "c" t)
                "0")))
   d (or d (string-to-number
            (or (org-entry-get org-babel-current-src-block-location "e" t)
                "0")))
   e (or e (string-to-number
            (or (org-entry-get org-babel-current-src-block-location "d" t)
                "0"))))
  (format "elisp a:%d, b:%d, c:%d, d:%d, e:%d" a b c d e)
#+END_SRC

* =:file-ext= and =:output-dir= header args
  :PROPERTIES:
  :ID:       93573e1d-6486-442e-b6d0-3fedbdc37c9b
  :END:
#+name: file-ext-basic
#+BEGIN_SRC emacs-lisp :file-ext txt
nil
#+END_SRC

#+name: file-ext-dir-relative
#+BEGIN_SRC emacs-lisp :file-ext txt :output-dir foo
nil
#+END_SRC

#+name: file-ext-dir-relative-slash
#+BEGIN_SRC emacs-lisp :file-ext txt :output-dir foo/
nil
#+END_SRC

#+name: file-ext-dir-absolute
#+BEGIN_SRC emacs-lisp :file-ext txt :output-dir /tmp
nil
#+END_SRC

#+name: file-ext-file-wins
#+BEGIN_SRC emacs-lisp :file-ext txt :file foo.bar
nil
#+END_SRC

#+name: file-ext-file-wins2
#+BEGIN_SRC emacs-lisp :output-dir xxx :file foo.bar
nil
#+END_SRC

debug log:

solving 68ba65a ...
found 68ba65a in https://yhetil.org/emacs/8761lugqyi.fsf@gmail.com/
found 449824f in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 449824fc2d9d9dfa7e67a4b8409cfb192b65aadf	testing/examples/babel.org

applying [1/1] https://yhetil.org/emacs/8761lugqyi.fsf@gmail.com/
diff --git a/testing/examples/babel.org b/testing/examples/babel.org
index 449824f..68ba65a 100644

Checking patch testing/examples/babel.org...
Applied patch testing/examples/babel.org cleanly.

index at:
100644 68ba65a4d7d99454b7db0ca07f351c43d7733d58	testing/examples/babel.org

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