Command-line org

This commit is contained in:
Anthony Scemama 2020-12-27 15:46:11 +01:00
parent b08079c09d
commit 5244b2dba8
6 changed files with 727 additions and 206 deletions

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@ -1,4 +1,11 @@
#+begin_src elisp tangle: no :results none
(setq pwd (file-name-directory buffer-file-name))
(setq name (file-name-nondirectory (substring buffer-file-name 0 -4)))
(setq lib (concat pwd "lib/"))
(setq testdir (concat pwd "test/"))
(setq mli (concat lib name ".mli"))
(setq ml (concat lib name ".ml"))
(setq test-ml (concat testdir name ".ml"))
(org-babel-tangle)
#+end_src
@ -15,7 +22,7 @@
** Type
#+NAME: types
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
type t =
| S | P | D | F | G | H | I | J | K | L | M | N | O
| Int of int
@ -36,7 +43,7 @@ type kind =
The ~kind~ is used to build shells, shell doublets, triplets or
quartets, use in the two-electron operators.
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
<<types>>
open Powers
#+end_src
@ -54,11 +61,11 @@ open Powers
Angular_momentum.of_char 'p' -> Angular_momentum.P
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val of_char : char -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let of_char = function
| 's' | 'S' -> S | 'p' | 'P' -> P
| 'd' | 'D' -> D | 'f' | 'F' -> F
@ -78,11 +85,11 @@ let of_char = function
Angular_momentum.(to_string D) -> "D"
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val to_string : t -> string
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let to_string = function
| S -> "S" | P -> "P"
| D -> "D" | F -> "F"
@ -101,11 +108,11 @@ let to_string = function
Angular_momentum.(to_char D) -> 'D'
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val to_char : t -> char
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let to_char = function
| S -> 'S' | P -> 'P'
| D -> 'D' | F -> 'F'
@ -124,11 +131,11 @@ let to_char = function
Angular_momentum.(to_char D) -> 2
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val to_int : t -> int
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let to_int = function
| S -> 0 | P -> 1
| D -> 2 | F -> 3
@ -147,11 +154,11 @@ let to_int = function
Angular_momentum.of_int 3 -> Angular_momentum.F
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val of_int : int -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let of_int = function
| 0 -> S | 1 -> P
| 2 -> D | 3 -> F
@ -174,11 +181,11 @@ let of_int = function
Angular_momentum.n_functions D -> 6
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val n_functions : t -> int
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let n_functions a =
let a =
to_int a
@ -210,11 +217,11 @@ let n_functions a =
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val zkey_array : kind -> Zkey.t array
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let zkey_array_memo : (kind, Zkey.t array) Hashtbl.t =
Hashtbl.create 13
@ -295,12 +302,12 @@ let zkey_array a =
** Arithmetic
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val ( + ) : t -> t -> t
val ( - ) : t -> t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let ( + ) a b =
of_int ( (to_int a) + (to_int b) )
@ -313,12 +320,12 @@ let ( - ) a b =
Printers can print as a string (~pp_string~) or as an integer (~pp_int~).
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val pp_string : Format.formatter -> t -> unit
val pp_int : Format.formatter -> t -> unit
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let pp_string ppf x =
Format.fprintf ppf "@[%s@]" (to_string x)

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@ -1,4 +1,11 @@
#+begin_src elisp tangle: no :results none
(setq pwd (file-name-directory buffer-file-name))
(setq name (file-name-nondirectory (substring buffer-file-name 0 -4)))
(setq lib (concat pwd "lib/"))
(setq testdir (concat pwd "test/"))
(setq mli (concat lib name ".mli"))
(setq ml (concat lib name ".ml"))
(setq test-ml (concat testdir name ".ml"))
(org-babel-tangle)
#+end_src
@ -19,7 +26,7 @@
** Single-integer implementation
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
module One = struct
let of_int x =
@ -60,7 +67,7 @@ end
** Zarith implementation
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
module Many = struct
let of_z x = x
@ -92,11 +99,11 @@ end
** Type
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
type t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
type t =
| One of int
| Many of Z.t
@ -104,7 +111,7 @@ type t =
** Tests header
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
open Common.Bitstring
let check msg x = Alcotest.(check bool) msg true x
let test_all () =
@ -119,16 +126,16 @@ let test_all () =
Creates a bit string from an ~int~.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val of_int : int -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let of_int x =
One (One.of_int x)
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "of_x" true (one_x = (of_int x));
#+end_src
@ -136,16 +143,16 @@ let of_int x =
Creates a bit string from an ~Z.t~ multi-precision integer.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val of_z : Z.t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let of_z x =
if Z.numbits x < 64 then One (Z.to_int x) else Many (Many.of_z x)
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "of_z" true (one_x = (of_z (Z.of_int x)));
#+end_src
@ -153,11 +160,11 @@ let of_z x =
~zero n~ creates a zero bit string with ~n~ bits.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val zero : int -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let zero = function
| n when n < 64 -> One (One.zero)
| _ -> Many (Many.zero)
@ -167,11 +174,11 @@ let zero = function
Returns the number of bits used to represent the bit string.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val numbits : t -> int
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let numbits = function
| One x -> One.numbits x
| Many x -> Many.numbits x
@ -181,11 +188,11 @@ let numbits = function
True if all the bits of the bit string are zero.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val is_zero : t -> bool
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let is_zero = function
| One x -> One.is_zero x
| Many x -> Many.is_zero x
@ -199,11 +206,11 @@ let is_zero = function
neg (of_int x) = neg (of_int (-x))
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val neg : t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let neg = function
| One x -> One (One.neg x)
| Many x -> Many (Many.neg x)
@ -214,17 +221,17 @@ let neg = function
~shift_left t n~ returns a new bit strings with all the bits
shifted ~n~ positions to the left.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val shift_left : t -> int -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let shift_left x i = match x with
| One x -> One (One.shift_left x i)
| Many x -> Many (Many.shift_left x i)
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "shift_left1" true (of_int (x lsl 3) = shift_left one_x 3);
Alcotest.(check bool) "shift_left2" true (of_z (Z.shift_left z 3) = shift_left many_x 3);
Alcotest.(check bool) "shift_left3" true (of_z (Z.shift_left z 100) = shift_left many_x 100);
@ -235,17 +242,17 @@ let shift_left x i = match x with
~shift_right t n~ returns a new bit strings with all the bits
shifted ~n~ positions to the right.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val shift_right : t -> int -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let shift_right x i = match x with
| One x -> One (One.shift_right x i)
| Many x -> Many (Many.shift_right x i)
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "shift_right1" true (of_int (x lsr 3) = shift_right one_x 3);
Alcotest.(check bool) "shift_right2" true (of_z (Z.shift_right z 3) = shift_right many_x 3);
#+end_src
@ -257,18 +264,18 @@ let shift_right x i = match x with
It is equivalent as shifting ~1~ by ~n~ bits to the left.
~size~ is the total number of bits of the bit string.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val shift_left_one : int -> int -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let shift_left_one = function
| n when n < 64 -> fun i -> One (One.shift_left_one i)
| _ -> fun i -> Many (Many.shift_left_one i)
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "shift_left_one1" true (of_int (1 lsl 3) = shift_left_one 4 3);
Alcotest.(check bool) "shift_left_one2" true (of_z (Z.shift_left Z.one 200) = shift_left_one 300 200);
#+end_src
@ -278,17 +285,17 @@ let shift_left_one = function
~testbit t n~ is true if the ~n~-th bit of the bit string ~t~ is
set to ~1~.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val testbit : t -> int -> bool
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let testbit = function
| One x -> One.testbit x
| Many x -> Many.testbit x
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "testbit1" true (testbit (of_int 8) 3);
Alcotest.(check bool) "testbit2" false (testbit (of_int 8) 2);
Alcotest.(check bool) "testbit3" false (testbit (of_int 8) 4);
@ -301,11 +308,11 @@ let testbit = function
Bitwise logical or.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val logor : t -> t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let logor a b =
match a,b with
| One a, One b -> One (One.logor a b)
@ -313,7 +320,7 @@ let logor a b =
| _ -> invalid_arg "Bitstring.logor"
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "logor1" true (of_int (1 lor 2) = logor (of_int 1) (of_int 2));
Alcotest.(check bool) "logor2" true (of_z (Z.of_int (1 lor 2)) = logor (of_z Z.one) (of_z (Z.of_int 2)));
#+end_src
@ -322,11 +329,11 @@ let logor a b =
Bitwise logical exclusive or.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val logxor : t -> t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let logxor a b =
match a,b with
| One a, One b -> One (One.logxor a b)
@ -335,7 +342,7 @@ let logxor a b =
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "logxor1" true (of_int (1 lxor 2) = logxor (of_int 1) (of_int 2));
Alcotest.(check bool) "logxor2" true (of_z (Z.of_int (1 lxor 2)) = logxor (of_z Z.one) (of_z (Z.of_int 2)));
#+end_src
@ -344,11 +351,11 @@ let logxor a b =
Bitwise logical and.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val logand : t -> t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let logand a b =
match a,b with
| One a, One b -> One (One.logand a b)
@ -357,7 +364,7 @@ let logand a b =
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "logand1" true (of_int (1 land 3) = logand (of_int 1) (of_int 3));
Alcotest.(check bool) "logand2" true (of_z (Z.of_int (1 land 3)) = logand (of_z Z.one) (of_z (Z.of_int 3)));
#+end_src
@ -366,11 +373,11 @@ let logand a b =
Bitwise logical negation.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val lognot : t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let lognot = function
| One x -> One (One.lognot x)
| Many x -> Many (Many.lognot x)
@ -384,11 +391,11 @@ let lognot = function
minus_one (of_int 10) = of_int 9
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val minus_one : t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let minus_one = function
| One x -> One (One.minus_one x)
| Many x -> Many (Many.minus_one x)
@ -402,11 +409,11 @@ let minus_one = function
plus_one (of_int 10) = of_int 11
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val plus_one : t -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let plus_one = function
| One x -> One (One.plus_one x)
| Many x -> Many (Many.plus_one x)
@ -416,11 +423,11 @@ let plus_one = function
Returns the number of trailing zeros in the bit string.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val trailing_zeros : t -> int
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let trailing_zeros = function
| One x -> One.trailing_zeros x
| Many x -> Many.trailing_zeros x
@ -431,11 +438,11 @@ let trailing_zeros = function
Returns the Hamming distance, i.e. the number of bits differing
between two bit strings.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val hamdist : t -> t -> int
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let hamdist a b = match a, b with
| One a, One b -> One.hamdist a b
| Many a, Many b -> Many.hamdist a b
@ -446,11 +453,11 @@ let hamdist a b = match a, b with
Returns the number of bits set to one in the bit string.
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val popcount : t -> int
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let popcount = function
| One x -> One.popcount x
| Many x -> Many.popcount x
@ -467,11 +474,11 @@ Bitstring.to_list (of_int 5);;
- : int list = [1; 3]
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val to_list : ?accu:(int list) -> t -> int list
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let rec to_list ?(accu=[]) = function
| t when (is_zero t) -> List.rev accu
| t -> let newlist =
@ -481,7 +488,7 @@ let rec to_list ?(accu=[]) = function
|> (to_list [@tailcall]) ~accu:newlist
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
Alcotest.(check bool) "to_list" true ([ 1 ; 3 ; 4 ; 6 ] = (to_list (of_int 45)));
#+end_src
@ -503,11 +510,11 @@ Bitstring.permutations 2 4
"--++------------------------------------------------------------"]
#+end_example
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val permutations : int -> int -> t list
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let permutations m n =
let rec aux k u rest =
@ -527,7 +534,7 @@ let permutations m n =
aux (Util.binom n m) (minus_one (shift_left_one n m)) []
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
check "permutations"
(permutations 2 4 = List.map of_int
[ 3 ; 5 ; 6 ; 9 ; 10 ; 12 ]);
@ -537,11 +544,11 @@ check "permutations"
Printers can print as a string (~pp_string~) or as an integer (~pp_int~).
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val pp : Format.formatter -> t -> unit
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let pp ppf = function
| One x -> One.pp ppf x
| Many x -> Many.pp ppf x
@ -549,7 +556,7 @@ let pp ppf = function
** Tests
#+begin_src ocaml :tangle (org-entry-get nil "test-ml" t)
#+begin_src ocaml :tangle (eval test-ml)
()
let tests = [

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@ -1,12 +1,17 @@
#+begin_src elisp tangle: no :results none
(setq pwd (file-name-directory buffer-file-name))
(setq name (file-name-nondirectory (substring buffer-file-name 0 -4)))
(setq lib (concat pwd "lib/"))
(setq testdir (concat pwd "test/"))
(setq mli (concat lib name ".mli"))
(setq ml (concat lib name ".ml"))
(setq test-ml (concat testdir name ".ml"))
(org-babel-tangle)
#+end_src
* Charge
:PROPERTIES:
:ml: lib/charge.ml
:mli: lib/charge.mli
:test-ml: test/charge.ml
:header-args: :noweb yes :comments both
:END:
@ -14,11 +19,11 @@
This type should be used for all charges in the program (electrons, nuclei,...).
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
type t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
type t = float
#+end_src
@ -26,36 +31,36 @@ type t = float
*** ~of_float~ / ~to_float~
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val of_float : float -> t
val to_float : t -> float
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
external of_float : float -> t = "%identity"
external to_float : t -> float = "%identity"
#+end_src
*** ~of_int~ / ~to_int~
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val of_int : int -> t
val to_int : t -> int
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let of_int = float_of_int
let to_int = int_of_float
#+end_src
*** ~of_string~ / ~to_string~
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val of_string: string -> t
val to_string: t -> string
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let of_string = float_of_string
let to_string x =
@ -69,14 +74,14 @@ let to_string x =
** Simple operations
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val ( + ) : t -> t -> t
val ( - ) : t -> t -> t
val ( * ) : t -> float -> t
val ( / ) : t -> float -> t
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let gen_op op =
fun a b ->
op (to_float a) (to_float b)
@ -90,11 +95,11 @@ let ( / ) = gen_op ( /. )
** Printers
#+begin_src ocaml :tangle (org-entry-get nil "mli" t)
#+begin_src ocaml :tangle (eval mli)
val pp : Format.formatter -> t -> unit
#+end_src
#+begin_src ocaml :tangle (org-entry-get nil "ml" t)
#+begin_src ocaml :tangle (eval ml)
let pp ppf x =
Format.fprintf ppf "@[+%s@]" (to_string x)
#+end_src

367
common/command_line.org Normal file
View File

@ -0,0 +1,367 @@
#+begin_src elisp tangle: no :results none
(setq pwd (file-name-directory buffer-file-name))
(setq name (file-name-nondirectory (substring buffer-file-name 0 -4)))
(setq lib (concat pwd "lib/"))
(setq testdir (concat pwd "test/"))
(setq mli (concat lib name ".mli"))
(setq ml (concat lib name ".ml"))
(setq test-ml (concat testdir name ".ml"))
(org-babel-tangle)
#+end_src
* Command line
:PROPERTIES:
:header-args: :noweb yes :comments both
:END:
This module is a wrapper around the ~Getopt~ library and helps to
define command-line arguments.
Here is an example of how to use this module.
First, define the specification:
#+begin_src ocaml :tangle no
let open Command_line in
begin
set_header_doc (Sys.argv.(0) ^ " - One-line description");
set_description_doc "Long description of the command.";
set_specs
[ { short='c'; long="check"; opt=Optional;
doc="Checks the input data";
arg=Without_arg; };
{ short='b' ; long="basis" ; opt=Mandatory;
arg=With_arg "<string>";
doc="Name of the file containing the basis set"; } ;
{ short='m' ; long="multiplicity" ; opt=Optional;
arg=With_arg "<int>";
doc="Spin multiplicity (2S+1). Default is singlet"; } ;
]
end;
#+end_src
Then, define what to do with the arguments:
#+begin_src ocaml :tangle no
let c =
Command_line.get_bool "check"
in
let basis =
match Command_line.get "basis" with
| Some x -> x
| None -> assert false
in
let multiplicity =
match Command_line.get "multiplicity" with
| None -> 1
| Some n -> int_of_string n
in
#+end_src
** Type
- Short option: in the command line, a dash with a single character
(ex: =ls -l=)
- Long option: in the command line, two dashes with a word
(ex: =ls --directory=)
- Command-line options can be ~Mandatory~ or ~Optional~
- Documentation of the option is used in the help function
- Some options require an argument (~ls --ignore="*.ml"~ ), some
don't (~ls -l~) and for some arguments the argument is optional
(~git --log[=<n>]~)
#+NAME:type
#+begin_src ocaml :tangle (eval mli)
type short_opt = char
type long_opt = string
type optional = Mandatory | Optional
type documentation = string
type argument = With_arg of string | Without_arg | With_opt_arg of string
type description = {
short: short_opt ;
long : long_opt ;
opt : optional ;
doc : documentation ;
arg : argument ;
}
#+end_src
#+begin_src ocaml :tangle (eval ml)
<<type>>
#+end_src
** Mutable attributes
All the options are stored in the hash table ~dict~ where the key
is the long option and the value is a value of type ~description~.
#+begin_src ocaml :tangle (eval ml)
let header_doc = ref ""
let description_doc = ref ""
let footer_doc = ref ""
let anon_args_ref = ref []
let specs = ref []
let dict = Hashtbl.create 67
#+end_src
Functions to set the header, footer and main description of the
documentation provided by the ~help~ function:
#+begin_src ocaml :tangle (eval mli)
val set_header_doc : string -> unit
val set_description_doc : string -> unit
val set_footer_doc : string -> unit
#+end_src
#+begin_src ocaml :tangle (eval ml)
let set_header_doc s = header_doc := s
let set_description_doc s = description_doc := s
let set_footer_doc s = footer_doc := s
#+end_src
Function to create an anonymous argument:
#+begin_src ocaml :tangle (eval mli)
val anonymous : long_opt -> optional -> documentation -> description
#+end_src
#+begin_src ocaml :tangle (eval ml)
let anonymous name opt doc =
{ short=' ' ; long=name; opt; doc; arg=Without_arg; }
#+end_src
** Text formatting functions
Function to print some text such that it fits on the screen
#+begin_src ocaml :tangle (eval ml)
let output_text t =
Format.printf "@[<v 0>";
begin
match Str.split (Str.regexp "\n") t with
| x :: [] ->
Format.printf "@[<hov 0>";
Str.split (Str.regexp " ") x
|> List.iter (fun y -> Format.printf "@[%s@]@ " y) ;
Format.printf "@]"
| t ->
List.iter (fun x ->
Format.printf "@[<hov 0>";
Str.split (Str.regexp " ") x
|> List.iter (fun y -> Format.printf "@[%s@]@ " y) ;
Format.printf "@]@;"
) t
end;
Format.printf "@]"
#+end_src
Function to build the short description of the command-line
arguments, such as
#+begin_example
my_program -b <string> [-h] [-u <float>] -x <string> [--]
#+end_example
#+begin_src ocaml :tangle (eval ml)
let output_short x =
match x.short, x.opt, x.arg with
| ' ', Mandatory, _ -> Format.printf "@[%s@]" x.long
| ' ', Optional , _ -> Format.printf "@[[%s]@]" x.long
| _ , Mandatory, Without_arg -> Format.printf "@[-%c@]" x.short
| _ , Optional , Without_arg -> Format.printf "@[[-%c]@]" x.short
| _ , Mandatory, With_arg arg -> Format.printf "@[-%c %s@]" x.short arg
| _ , Optional , With_arg arg -> Format.printf "@[[-%c %s]@]" x.short arg
| _ , Mandatory, With_opt_arg arg -> Format.printf "@[-%c [%s]@]" x.short arg
| _ , Optional , With_opt_arg arg -> Format.printf "@[[-%c [%s]]@]" x.short arg
#+end_src
Function to build the long description of the command-line
arguments, such as
#+begin_example
-x --xyz=<string> Name of the file containing the nuclear
coordinates in xyz format
#+end_example
#+begin_src ocaml :tangle (eval ml)
let output_long max_width x =
let arg =
match x.short, x.arg with
| ' ' , _ -> x.long
| _ , Without_arg -> x.long
| _ , With_arg arg -> Printf.sprintf "%s=%s" x.long arg
| _ , With_opt_arg arg -> Printf.sprintf "%s[=%s]" x.long arg
in
let long =
let l = String.length arg in
arg^(String.make (max_width-l) ' ')
in
Format.printf "@[<v 0>";
begin
match x.short with
| ' ' -> Format.printf "@[%s @]" long
| short -> Format.printf "@[-%c --%s @]" short long
end;
Format.printf "@]";
output_text x.doc
#+end_src
** Query functions
*** ~anon_args~
Returns the list of anonymous arguments
#+begin_src ocaml :tangle (eval mli)
val anon_args : unit -> string list
#+end_src
#+begin_src ocaml :tangle (eval ml)
let anon_args () = !anon_args_ref
#+end_src
*** ~help~
Prints the documentation of the program.
#+begin_src ocaml :tangle (eval ml)
let help () =
(* Print the header *)
output_text !header_doc;
Format.printf "@.@.";
(* Find the anonymous arguments *)
let anon =
List.filter (fun x -> x.short = ' ') !specs
in
(* Find the options *)
let options =
List.filter (fun x -> x.short <> ' ') !specs
|> List.sort (fun x y -> Char.compare x.short y.short)
in
(* Find column lengths *)
let max_width =
List.map (fun x ->
( match x.arg with
| Without_arg -> String.length x.long
| With_arg arg -> String.length x.long + String.length arg
| With_opt_arg arg -> String.length x.long + String.length arg + 2
)
+ ( if x.opt = Optional then 2 else 0)
) !specs
|> List.fold_left max 0
in
(* Print usage *)
Format.printf "@[<v>@[<v 2>Usage:@,@,@[<hov 4>@[%s@]" Sys.argv.(0);
List.iter (fun x -> Format.printf "@ "; output_short x) options;
Format.printf "@ @[[--]@]";
List.iter (fun x -> Format.printf "@ "; output_short x;) anon;
Format.printf "@]@,@]@,";
(* Print arguments and doc *)
Format.printf "@[<v 2>Arguments:@,";
Format.printf "@[<v 0>" ;
List.iter (fun x -> Format.printf "@ "; output_long max_width x) anon;
Format.printf "@]@,@]@,";
(* Print options and doc *)
Format.printf "@[<v 2>Options:@,";
Format.printf "@[<v 0>" ;
List.iter (fun x -> Format.printf "@ "; output_long max_width x) options;
Format.printf "@]@,@]@,";
(* Print footer *)
if !description_doc <> "" then
begin
Format.printf "@[<v 2>Description:@,@,";
output_text !description_doc;
Format.printf "@,"
end;
(* Print footer *)
output_text !footer_doc;
Format.printf "@."
#+end_src
*** ~get~
Returns the argument associated with a long option.
#+begin_src ocaml :tangle (eval mli)
val get : long_opt -> string option
#+end_src
#+begin_src ocaml :tangle (eval ml)
let get x =
try Some (Hashtbl.find dict x)
with Not_found -> None
#+end_src
*** ~get_bool~
True if the ~Optional~ argument is present in the command-line
#+begin_src ocaml :tangle (eval mli)
val get_bool : long_opt -> bool
#+end_src
#+begin_src ocaml :tangle (eval ml)
let get_bool x = Hashtbl.mem dict x
#+end_src
** Specification
Gives the specifications of the current program as a list of
~descrption~ variables.
#+begin_src ocaml :tangle (eval mli)
val set_specs : description list -> unit
#+end_src
#+begin_src ocaml :tangle (eval ml)
let set_specs specs_in =
specs := { short = 'h' ;
long = "help" ;
doc = "Prints the help message." ;
arg = Without_arg ;
opt = Optional ;
} :: specs_in;
let cmd_specs =
List.filter (fun x -> x.short != ' ') !specs
|> List.map (fun { short ; long ; arg ; _ } ->
match arg with
| With_arg _ ->
(short, long, None, Some (fun x -> Hashtbl.replace dict long x) )
| Without_arg ->
(short, long, Some (fun () -> Hashtbl.replace dict long ""), None)
| With_opt_arg _ ->
(short, long, Some (fun () -> Hashtbl.replace dict long ""),
Some (fun x -> Hashtbl.replace dict long x) )
)
in
Getopt.parse_cmdline cmd_specs (fun x -> anon_args_ref := !anon_args_ref @ [x]);
if (get_bool "help") then
(help () ; exit 0);
(* Check that all mandatory arguments are set *)
List.filter (fun x -> x.short <> ' ' && x.opt = Mandatory) !specs
|> List.iter (fun x ->
match get x.long with
| Some _ -> ()
| None -> failwith ("Error: --"^x.long^" option is missing.")
)
#+end_src

View File

@ -1,59 +1,81 @@
(* [[file:../command_line.org::*Type][Type:2]] *)
type short_opt = char
type long_opt = string
type optional = Mandatory | Optional
type documentation = string
type argument = With_arg of string | Without_arg | With_opt_arg of string
type description = {
type description = {
short: short_opt ;
long : long_opt ;
opt : optional ;
doc : documentation ;
arg : argument ;
}
}
(* Type:2 ends here *)
let anon_args = ref []
and header_doc = ref ""
and description_doc = ref ""
and footer_doc = ref ""
and specs = ref []
(* Mutable attributes
*
* All the options are stored in the hash table ~dict~ where the key
* is the long option and the value is a value of type ~description~. *)
(* [[file:../command_line.org::*Mutable attributes][Mutable attributes:1]] *)
let header_doc = ref ""
let description_doc = ref ""
let footer_doc = ref ""
let anon_args_ref = ref []
let specs = ref []
let dict = Hashtbl.create 67
(* Mutable attributes:1 ends here *)
(* [[file:../command_line.org::*Mutable attributes][Mutable attributes:3]] *)
let set_header_doc s = header_doc := s
let set_description_doc s = description_doc := s
let set_footer_doc s = footer_doc := s
(* Mutable attributes:3 ends here *)
(* Hash table containing all the options *)
let dict = Hashtbl.create 67
let get_bool x = Hashtbl.mem dict x
let show_help () = get_bool "help"
let get x =
try Some (Hashtbl.find dict x)
with Not_found -> None
(* [[file:../command_line.org::*Mutable attributes][Mutable attributes:5]] *)
let anonymous name opt doc =
{ short=' ' ; long=name; opt; doc; arg=Without_arg; }
(* Mutable attributes:5 ends here *)
(* Text formatting functions
*
* Function to print some text such that it fits on the screen *)
(* [[file:../command_line.org::*Text formatting functions][Text formatting functions:1]] *)
let output_text t =
Format.printf "@[<v 0>";
begin
match Str.split (Str.regexp "\n") t with
| x :: [] -> Format.printf "@[<hov 0>";
Str.split (Str.regexp " ") x
|> List.iter (fun y -> Format.printf "@[%s@]@ " y) ;
Format.printf "@]"
| t -> List.iter (fun x ->
Format.printf "@[<hov 0>";
Str.split (Str.regexp " ") x
|> List.iter (fun y -> Format.printf "@[%s@]@ " y) ;
Format.printf "@]@;") t
| x :: [] ->
Format.printf "@[<hov 0>";
Str.split (Str.regexp " ") x
|> List.iter (fun y -> Format.printf "@[%s@]@ " y) ;
Format.printf "@]"
| t ->
List.iter (fun x ->
Format.printf "@[<hov 0>";
Str.split (Str.regexp " ") x
|> List.iter (fun y -> Format.printf "@[%s@]@ " y) ;
Format.printf "@]@;"
) t
end;
Format.printf "@]"
;;
(* Text formatting functions:1 ends here *)
(* Function to build the short description of the command-line
* arguments, such as
* #+begin_example
* my_program -b <string> [-h] [-u <float>] -x <string> [--]
* #+end_example *)
(* [[file:../command_line.org::*Text formatting functions][Text formatting functions:2]] *)
let output_short x =
match x.short, x.opt, x.arg with
| ' ', Mandatory, _ -> Format.printf "@[%s@]" x.long
@ -64,8 +86,20 @@ let output_short x =
| _ , Optional , With_arg arg -> Format.printf "@[[-%c %s]@]" x.short arg
| _ , Mandatory, With_opt_arg arg -> Format.printf "@[-%c [%s]@]" x.short arg
| _ , Optional , With_opt_arg arg -> Format.printf "@[[-%c [%s]]@]" x.short arg
(* Text formatting functions:2 ends here *)
(* Function to build the long description of the command-line
* arguments, such as
* #+begin_example
* -x --xyz=<string> Name of the file containing the nuclear
* coordinates in xyz format
* #+end_example *)
(* [[file:../command_line.org::*Text formatting functions][Text formatting functions:3]] *)
let output_long max_width x =
let arg =
match x.short, x.arg with
@ -86,114 +120,128 @@ let output_long max_width x =
end;
Format.printf "@]";
output_text x.doc
(* Text formatting functions:3 ends here *)
(* [[file:../command_line.org::*~anon_args~][~anon_args~:2]] *)
let anon_args () = !anon_args_ref
(* ~anon_args~:2 ends here *)
(* ~help~
*
* Prints the documentation of the program. *)
(* [[file:../command_line.org::*~help~][~help~:1]] *)
let help () =
(* Print the header *)
output_text !header_doc;
Format.printf "@.@.";
(* Print the header *)
output_text !header_doc;
Format.printf "@.@.";
(* Find the anonymous arguments *)
let anon =
List.filter (fun x -> x.short = ' ') !specs
in
(* Find the anonymous arguments *)
let anon =
List.filter (fun x -> x.short = ' ') !specs
in
(* Find the options *)
let options =
List.filter (fun x -> x.short <> ' ') !specs
|> List.sort (fun x y -> Char.compare x.short y.short)
in
(* Find the options *)
let options =
List.filter (fun x -> x.short <> ' ') !specs
|> List.sort (fun x y -> Char.compare x.short y.short)
in
(* Find column lengths *)
let max_width =
List.map (fun x ->
( match x.arg with
| Without_arg -> String.length x.long
| With_arg arg -> String.length x.long + String.length arg
| With_opt_arg arg -> String.length x.long + String.length arg + 2
)
+ ( if x.opt = Optional then 2 else 0)
) !specs
|> List.fold_left max 0
in
(* Find column lengths *)
let max_width =
List.map (fun x ->
( match x.arg with
| Without_arg -> String.length x.long
| With_arg arg -> String.length x.long + String.length arg
| With_opt_arg arg -> String.length x.long + String.length arg + 2
)
+ ( if x.opt = Optional then 2 else 0)
) !specs
|> List.fold_left max 0
in
(* Print usage *)
Format.printf "@[<v>@[<v 2>Usage:@,@,@[<hov 4>@[%s@]" Sys.argv.(0);
List.iter (fun x -> Format.printf "@ "; output_short x) options;
Format.printf "@ @[[--]@]";
List.iter (fun x -> Format.printf "@ "; output_short x;) anon;
Format.printf "@]@,@]@,";
(* Print usage *)
Format.printf "@[<v>@[<v 2>Usage:@,@,@[<hov 4>@[%s@]" Sys.argv.(0);
List.iter (fun x -> Format.printf "@ "; output_short x) options;
Format.printf "@ @[[--]@]";
List.iter (fun x -> Format.printf "@ "; output_short x;) anon;
Format.printf "@]@,@]@,";
(* Print arguments and doc *)
Format.printf "@[<v 2>Arguments:@,";
Format.printf "@[<v 0>" ;
List.iter (fun x -> Format.printf "@ "; output_long max_width x) anon;
Format.printf "@]@,@]@,";
(* Print arguments and doc *)
Format.printf "@[<v 2>Arguments:@,";
Format.printf "@[<v 0>" ;
List.iter (fun x -> Format.printf "@ "; output_long max_width x) anon;
Format.printf "@]@,@]@,";
(* Print options and doc *)
Format.printf "@[<v 2>Options:@,";
(* Print options and doc *)
Format.printf "@[<v 2>Options:@,";
Format.printf "@[<v 0>" ;
List.iter (fun x -> Format.printf "@ "; output_long max_width x) options;
Format.printf "@]@,@]@,";
Format.printf "@[<v 0>" ;
List.iter (fun x -> Format.printf "@ "; output_long max_width x) options;
Format.printf "@]@,@]@,";
(* Print footer *)
if !description_doc <> "" then
(* Print footer *)
if !description_doc <> "" then
begin
Format.printf "@[<v 2>Description:@,@,";
output_text !description_doc;
Format.printf "@,"
end;
(* Print footer *)
output_text !footer_doc;
Format.printf "@."
(* Print footer *)
output_text !footer_doc;
Format.printf "@."
(* ~help~:1 ends here *)
(* [[file:../command_line.org::*~get~][~get~:2]] *)
let get x =
try Some (Hashtbl.find dict x)
with Not_found -> None
(* ~get~:2 ends here *)
(* [[file:../command_line.org::*~get_bool~][~get_bool~:2]] *)
let get_bool x = Hashtbl.mem dict x
(* ~get_bool~:2 ends here *)
(* [[file:../command_line.org::*Specification][Specification:2]] *)
let set_specs specs_in =
specs := { short='h' ;
long ="help" ;
doc ="Prints the help message." ;
arg =Without_arg ;
opt =Optional ;
} :: specs_in;
specs := { short = 'h' ;
long = "help" ;
doc = "Prints the help message." ;
arg = Without_arg ;
opt = Optional ;
} :: specs_in;
let cmd_specs =
List.filter (fun x -> x.short != ' ') !specs
|> List.map (fun { short ; long ; arg ; _ } ->
match arg with
| With_arg _ ->
(short, long, None, Some (fun x -> Hashtbl.replace dict long x) )
| Without_arg ->
(short, long, Some (fun () -> Hashtbl.replace dict long ""), None)
| With_opt_arg _ ->
(short, long, Some (fun () -> Hashtbl.replace dict long ""),
Some (fun x -> Hashtbl.replace dict long x) )
)
in
Getopt.parse_cmdline cmd_specs (fun x -> anon_args := !anon_args @ [x]);
if show_help () then
(help () ; exit 0);
(* Check that all mandatory arguments are set *)
List.filter (fun x -> x.short <> ' ' && x.opt = Mandatory) !specs
|> List.iter (fun x ->
match get x.long with
| Some _ -> ()
| None -> failwith ("Error: --"^x.long^" option is missing.")
)
;;
let anon_args () = !anon_args
let cmd_specs =
List.filter (fun x -> x.short != ' ') !specs
|> List.map (fun { short ; long ; arg ; _ } ->
match arg with
| With_arg _ ->
(short, long, None, Some (fun x -> Hashtbl.replace dict long x) )
| Without_arg ->
(short, long, Some (fun () -> Hashtbl.replace dict long ""), None)
| With_opt_arg _ ->
(short, long, Some (fun () -> Hashtbl.replace dict long ""),
Some (fun x -> Hashtbl.replace dict long x) )
)
in
Getopt.parse_cmdline cmd_specs (fun x -> anon_args_ref := !anon_args_ref @ [x]);
if (get_bool "help") then
(help () ; exit 0);
(* Check that all mandatory arguments are set *)
List.filter (fun x -> x.short <> ' ' && x.opt = Mandatory) !specs
|> List.iter (fun x ->
match get x.long with
| Some _ -> ()
| None -> failwith ("Error: --"^x.long^" option is missing.")
)
(* Specification:2 ends here *)

View File

@ -0,0 +1,87 @@
(* Type
*
* - Short option: in the command line, a dash with a single character
* (ex: =ls -l=)
* - Long option: in the command line, two dashes with a word
* (ex: =ls --directory=)
* - Command-line options can be ~Mandatory~ or ~Optional~
* - Documentation of the option is used in the help function
* - Some options require an argument (~ls --ignore="*.ml"~ ), some
* don't (~ls -l~) and for some arguments the argument is optional
* (~git --log[=<n>]~)
*
* #+NAME:type *)
(* [[file:../command_line.org::type][type]] *)
type short_opt = char
type long_opt = string
type optional = Mandatory | Optional
type documentation = string
type argument = With_arg of string | Without_arg | With_opt_arg of string
type description = {
short: short_opt ;
long : long_opt ;
opt : optional ;
doc : documentation ;
arg : argument ;
}
(* type ends here *)
(* Functions to set the header, footer and main description of the
* documentation provided by the ~help~ function: *)
(* [[file:../command_line.org::*Mutable attributes][Mutable attributes:2]] *)
val set_header_doc : string -> unit
val set_description_doc : string -> unit
val set_footer_doc : string -> unit
(* Mutable attributes:2 ends here *)
(* Function to create an anonymous argument: *)
(* [[file:../command_line.org::*Mutable attributes][Mutable attributes:4]] *)
val anonymous : long_opt -> optional -> documentation -> description
(* Mutable attributes:4 ends here *)
(* ~anon_args~
*
* Returns the list of anonymous arguments *)
(* [[file:../command_line.org::*~anon_args~][~anon_args~:1]] *)
val anon_args : unit -> string list
(* ~anon_args~:1 ends here *)
(* ~get~
*
* Returns the argument associated with a long option. *)
(* [[file:../command_line.org::*~get~][~get~:1]] *)
val get : long_opt -> string option
(* ~get~:1 ends here *)
(* ~get_bool~
*
* True if the ~Optional~ argument is present in the command-line *)
(* [[file:../command_line.org::*~get_bool~][~get_bool~:1]] *)
val get_bool : long_opt -> bool
(* ~get_bool~:1 ends here *)
(* Specification
*
* Gives the specifications of the current program as a list of
* ~descrption~ variables. *)
(* [[file:../command_line.org::*Specification][Specification:1]] *)
val set_specs : description list -> unit
(* Specification:1 ends here *)