emacs-orgmode
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[O] [PATCH] ob-ocaml: Support for pretty-printed outputs


From: Robert M. Kovacsics
Subject: [O] [PATCH] ob-ocaml: Support for pretty-printed outputs
Date: Fri, 04 Oct 2019 17:52:50 +0100
User-agent: Roundcube Webmail/1.0.12

E.g. the following snippet produces multiple lines of output, due to
pretty-printing

 #+BEGIN_SRC ocaml :exports code :eval no-export :results verbatim
(* Note, no need to have parentheses around sqrt, as
application binds the tightest *)
let rec gamma n = if n = 0
                  then (1.0 +. sqrt 5.0) /. 2.0
                  else 1.0 /. (gamma (n-1) -. 1.0)

let nums = List.map gamma (List.init 5 (fun x -> x))
 #+END_SRC

 #+NAME: gamma-tbl
 #+RESULTS[1fd6a3e846afdef51350eb6d7ba15c6844ccc14e]:
: val gamma : int -> float = <fun>
: val nums : float list =
:   [1.6180339887498949; 1.61803398874989468; 1.61803398874989535;
:    1.61803398874989357; 1.61803398874989823]

(In reality this would have 50 or so outputs, point being mathematically
it shouldn't change, but due to floating point errors it does.)

The regexp has the following problems:

- The "." in group 5 (as-was) doesn't match new-lines, so it only
  matches the first line, e.g. as a list
  : - [1.6180339887498949, 1.61803398874989468, 1.61803398874989535,

- When using "\\(.\\|\n\\)", it includes the starting indentation of the
  list, which makes org-babel-script-escape choke (called from
  org-babel-ocaml-read-list, from org-babel-ocaml-parse-output, from
  org-babel-execute:ocaml, the code being modified.

Attachment: 0001-ob-ocaml-Support-for-pretty-printed-outputs.patch
Description: Text Data


reply via email to

[Prev in Thread] Current Thread [Next in Thread]