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org-mode/lisp/ob-forth.el
Ihor Radchenko fe92a3cedb
Provide a uniform way to inform users about missing third-party packages
* lisp/org-macs.el (org-require-package): New macro trying to load a
library and displaying custom error message or warning on failure.
The actual package (not library) name can be provided as optional
argument.

* lisp/ob-R.el (org-babel-R-initiate-session):
* lisp/ob-clojure.el (ob-clojure-eval-with-inf-clojure):
(ob-clojure-eval-with-cider):
(ob-clojure-eval-with-slime):
* lisp/ob-forth.el (org-babel-forth-session-execute):
* lisp/ob-gnuplot.el (org-babel-execute:gnuplot):
(org-babel-gnuplot-initiate-session):
* lisp/ob-haskell.el (org-babel-interpret-haskell):
(org-babel-haskell-initiate-session):
* lisp/ob-js.el (org-babel-execute:js):
(org-babel-js-initiate-session):
* lisp/ob-julia.el (org-babel-julia-initiate-session):
* lisp/ob-lisp.el (org-babel-execute:lisp):
* lisp/ob-ocaml.el (org-babel-prep-session:ocaml):
* lisp/ob-octave.el (org-babel-octave-initiate-session):
* lisp/ob-processing.el (org-babel-processing-view-sketch):
* lisp/ob-ruby.el (org-babel-execute:ruby):
(org-babel-ruby-initiate-session):
* lisp/ol-bbdb.el (org-bbdb-open):
(org-bbdb-complete-link):
(org-bbdb-anniv-export-ical):
* lisp/org-agenda.el:
* lisp/org-plot.el (org-plot/gnuplot):
* lisp/org.el:
* lisp/ox-ascii.el (org-ascii-table):
* lisp/ox-html.el (org-html-htmlize-generate-css):
* lisp/ox-org.el: Use the new macro.

* lisp/oc-csl.el: Add FIXME. oc-csl uses a custom function doing
similar job.

* lisp/ob-js.el (org-babel-js-initiate-session): Add FIXME noting that
the third-party package is outdated.
2023-02-17 17:09:23 +03:00

93 lines
3.1 KiB
EmacsLisp

;;; ob-forth.el --- Babel Functions for Forth -*- lexical-binding: t; -*-
;; Copyright (C) 2014-2023 Free Software Foundation, Inc.
;; Author: Eric Schulte
;; Keywords: literate programming, reproducible research, forth
;; URL: https://orgmode.org
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Requires the gforth forth compiler and `forth-mode' (see below).
;; https://www.gnu.org/software/gforth/
;;; Requirements:
;; Session evaluation requires the gforth forth compiler as well as
;; `forth-mode' which is distributed with gforth (in gforth.el).
;;; Code:
(require 'org-macs)
(org-assert-version)
(require 'ob)
(require 'org-macs)
(declare-function forth-proc "ext:gforth" ())
(defvar org-babel-default-header-args:forth '((:session . "yes"))
"Default header arguments for forth code blocks.")
(defun org-babel-execute:forth (body params)
"Execute a block of Forth code with org-babel.
This function is called by `org-babel-execute-src-block'."
(if (string= "none" (cdr (assq :session params)))
(error "Non-session evaluation not supported for Forth code blocks")
(let ((all-results (org-babel-forth-session-execute body params)))
(if (member "output" (cdr (assq :result-params params)))
(mapconcat #'identity all-results "\n")
(car (last all-results))))))
(defun org-babel-forth-session-execute (body params)
(org-require-package 'forth-mode)
(let ((proc (forth-proc))
(rx " \\(\n:\\|compiled\n\\|ok\n\\)")
(result-start))
(with-current-buffer (process-buffer (forth-proc))
(mapcar (lambda (line)
(setq result-start (progn (goto-char (process-mark proc))
(point)))
(comint-send-string proc (concat line "\n"))
;; wait for forth to say "ok"
(while (not (progn (goto-char result-start)
(re-search-forward rx nil t)))
(accept-process-output proc 0.01))
(let ((case (match-string 1)))
(cond
((string= "ok\n" case)
;; Collect intermediate output.
(buffer-substring (+ result-start 1 (length line))
(match-beginning 0)))
((string= "compiled\n" case))
;; Ignore partial compilation.
((string= "\n:" case)
;; Report errors.
(org-babel-eval-error-notify 1
(buffer-substring
(+ (match-beginning 0) 1) (point-max)))
nil))))
(split-string (org-trim
(org-babel-expand-body:generic body params))
"\n"
'omit-nulls)))))
(provide 'ob-forth)
;;; ob-forth.el ends here