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58f1dbccf8
Also remove blank lines before the ";;; org*el ends here" declarations. Having a "Version" header forced us to update every file when releasing a new version of Org; it also forced us to update every file when merging Org with Emacs trunk, thus cluttering the diffs between the previously merged version and the new one with useless information. Glenn Morris suggested this in emacs-devel: http://lists.gnu.org/archive/html/emacs-devel/2011-08/msg00322.html
145 lines
5.4 KiB
EmacsLisp
145 lines
5.4 KiB
EmacsLisp
;;; ob-ocaml.el --- org-babel functions for ocaml evaluation
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;; Copyright (C) 2009-2011 Free Software Foundation, Inc.
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;; Author: Eric Schulte
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;; Keywords: literate programming, reproducible research
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;; Homepage: http://orgmode.org
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Org-Babel support for evaluating ocaml source code. This one will
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;; be sort of tricky because ocaml programs must be compiled before
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;; they can be run, but ocaml code can also be run through an
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;; interactive interpreter.
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;;
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;; For now lets only allow evaluation using the ocaml interpreter.
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;;; Requirements:
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;; - tuareg-mode :: http://www-rocq.inria.fr/~acohen/tuareg/
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;;; Code:
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(require 'ob)
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(require 'ob-comint)
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(require 'comint)
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(eval-when-compile (require 'cl))
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(declare-function tuareg-run-caml "ext:tuareg" ())
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(declare-function tuareg-interactive-send-input "ext:tuareg" ())
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(defvar org-babel-tangle-lang-exts)
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(add-to-list 'org-babel-tangle-lang-exts '("ocaml" . "ml"))
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(defvar org-babel-default-header-args:ocaml '())
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(defvar org-babel-ocaml-eoe-indicator "\"org-babel-ocaml-eoe\";;")
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(defvar org-babel-ocaml-eoe-output "org-babel-ocaml-eoe")
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(defun org-babel-execute:ocaml (body params)
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"Execute a block of Ocaml code with Babel."
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(let* ((vars (mapcar #'cdr (org-babel-get-header params :var)))
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(full-body (org-babel-expand-body:generic
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body params
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(org-babel-variable-assignments:ocaml params)))
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(session (org-babel-prep-session:ocaml
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(cdr (assoc :session params)) params))
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(raw (org-babel-comint-with-output
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(session org-babel-ocaml-eoe-output t full-body)
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(insert
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(concat
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(org-babel-chomp full-body)"\n"org-babel-ocaml-eoe-indicator))
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(tuareg-interactive-send-input)))
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(clean
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(car (let ((re (regexp-quote org-babel-ocaml-eoe-output)) out)
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(delq nil (mapcar (lambda (line)
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(if out
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(progn (setq out nil) line)
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(when (string-match re line)
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(progn (setq out t) nil))))
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(mapcar #'org-babel-trim (reverse raw))))))))
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(org-babel-reassemble-table
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(org-babel-ocaml-parse-output (org-babel-trim clean))
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(org-babel-pick-name
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(cdr (assoc :colname-names params)) (cdr (assoc :colnames params)))
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(org-babel-pick-name
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(cdr (assoc :rowname-names params)) (cdr (assoc :rownames params))))))
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(defvar tuareg-interactive-buffer-name)
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(defun org-babel-prep-session:ocaml (session params)
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"Prepare SESSION according to the header arguments in PARAMS."
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(require 'tuareg)
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(let ((tuareg-interactive-buffer-name (if (and (not (string= session "none"))
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(not (string= session "default"))
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(stringp session))
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session
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tuareg-interactive-buffer-name)))
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(save-window-excursion (tuareg-run-caml)
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(get-buffer tuareg-interactive-buffer-name))))
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(defun org-babel-variable-assignments:ocaml (params)
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"Return list of ocaml statements assigning the block's variables"
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(mapcar
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(lambda (pair) (format "let %s = %s;;" (car pair)
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(org-babel-ocaml-elisp-to-ocaml (cdr pair))))
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(mapcar #'cdr (org-babel-get-header params :var))))
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(defun org-babel-ocaml-elisp-to-ocaml (val)
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"Return a string of ocaml code which evaluates to VAL."
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(if (listp val)
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(concat "[|" (mapconcat #'org-babel-ocaml-elisp-to-ocaml val "; ") "|]")
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(format "%S" val)))
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(defun org-babel-ocaml-parse-output (output)
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"Parse OUTPUT.
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OUTPUT is string output from an ocaml process."
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(let ((regexp "%s = \\(.+\\)$"))
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(cond
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((string-match (format regexp "string") output)
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(org-babel-read (match-string 1 output)))
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((or (string-match (format regexp "int") output)
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(string-match (format regexp "float") output))
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(string-to-number (match-string 1 output)))
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((string-match (format regexp "list") output)
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(org-babel-ocaml-read-list (match-string 1 output)))
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((string-match (format regexp "array") output)
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(org-babel-ocaml-read-array (match-string 1 output)))
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(t (message "don't recognize type of %s" output) output))))
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(defun org-babel-ocaml-read-list (results)
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"Convert RESULTS into an elisp table or string.
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If the results look like a table, then convert them into an
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Emacs-lisp table, otherwise return the results as a string."
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(org-babel-script-escape (replace-regexp-in-string ";" "," results)))
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(defun org-babel-ocaml-read-array (results)
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"Convert RESULTS into an elisp table or string.
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If the results look like a table, then convert them into an
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Emacs-lisp table, otherwise return the results as a string."
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(org-babel-script-escape
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(replace-regexp-in-string
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"\\[|" "[" (replace-regexp-in-string
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"|\\]" "]" (replace-regexp-in-string
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"; " "," results)))))
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(provide 'ob-ocaml)
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;;; ob-ocaml.el ends here
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