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authormattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
committermattkae <mattkae@protonmail.com>2022-06-07 08:23:47 -0400
commitbd18a38c2898548a3664a9ddab9f79c84f2caf4a (patch)
tree95b9933376770381bd8859782ae763be81c2d72b /elpa/org-9.5.2/ob-perl.el
parentb07628dddf418d4f47b858e6c35fd3520fbaeed2 (diff)
parentef160dea332af4b4fe5e2717b962936c67e5fe9e (diff)
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-;;; ob-perl.el --- Babel Functions for Perl -*- lexical-binding: t; -*-
-
-;; Copyright (C) 2009-2021 Free Software Foundation, Inc.
-
-;; Authors: Dan Davison
-;; Eric Schulte
-;; Maintainer: Corwin Brust
-;; Keywords: literate programming, reproducible research
-;; Homepage: 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:
-
-;; Org-Babel support for evaluating perl source code.
-
-;;; Code:
-(require 'ob)
-
-(defvar org-babel-tangle-lang-exts)
-(add-to-list 'org-babel-tangle-lang-exts '("perl" . "pl"))
-
-(defvar org-babel-default-header-args:perl '())
-
-(defvar org-babel-perl-command "perl"
- "Name of command to use for executing perl code.")
-
-(defun org-babel-execute:perl (body params)
- "Execute a block of Perl code with Babel.
-This function is called by `org-babel-execute-src-block'."
- (let* ((session (cdr (assq :session params)))
- (result-params (cdr (assq :result-params params)))
- (result-type (cdr (assq :result-type params)))
- (full-body (org-babel-expand-body:generic
- body params (org-babel-variable-assignments:perl params)))
- (session (org-babel-perl-initiate-session session)))
- (org-babel-reassemble-table
- (org-babel-perl-evaluate session full-body result-type result-params)
- (org-babel-pick-name
- (cdr (assq :colname-names params)) (cdr (assq :colnames params)))
- (org-babel-pick-name
- (cdr (assq :rowname-names params)) (cdr (assq :rownames params))))))
-
-(defun org-babel-prep-session:perl (_session _params)
- "Prepare SESSION according to the header arguments in PARAMS."
- (error "Sessions are not supported for Perl"))
-
-(defun org-babel-variable-assignments:perl (params)
- "Return list of perl statements assigning the block's variables."
- (mapcar
- (lambda (pair)
- (org-babel-perl--var-to-perl (cdr pair) (car pair)))
- (org-babel--get-vars params)))
-
-;; helper functions
-
-(defvar org-babel-perl-var-wrap "q(%s)"
- "Wrapper for variables inserted into Perl code.")
-
-(defvar org-babel-perl--lvl)
-(defun org-babel-perl--var-to-perl (var &optional varn)
- "Convert an elisp value to a perl variable.
-The elisp value, VAR, is converted to a string of perl source code
-specifying a var of the same value."
- (if varn
- (let ((org-babel-perl--lvl 0) (lvar (listp var)))
- (concat "my $" (symbol-name varn) "=" (when lvar "\n")
- (org-babel-perl--var-to-perl var)
- ";\n"))
- (let ((prefix (make-string (* 2 org-babel-perl--lvl) ?\ )))
- (concat prefix
- (if (listp var)
- (let ((org-babel-perl--lvl (1+ org-babel-perl--lvl)))
- (concat "[\n"
- (mapconcat #'org-babel-perl--var-to-perl var "")
- prefix "]"))
- (format "q(%s)" var))
- (unless (zerop org-babel-perl--lvl) ",\n")))))
-
-(defvar org-babel-perl-buffers '(:default . nil))
-
-(defun org-babel-perl-initiate-session (&optional _session _params)
- "Return nil because sessions are not supported by perl."
- nil)
-
-(defvar org-babel-perl-wrapper-method "{
- my $babel_sub = sub {
- %s
- };
- open my $BOH, qq(>%s) or die qq(Perl: Could not open output file.$/);
- my $rv = &$babel_sub();
- my $rt = ref $rv;
- select $BOH;
- if (qq(ARRAY) eq $rt) {
- local $\\=$/;
- local $,=qq(\t);
- foreach my $rv ( @$rv ) {
- my $rt = ref $rv;
- if (qq(ARRAY) eq $rt) {
- print @$rv;
- } else {
- print $rv;
- }
- }
- } else {
- print $rv;
- }
-}")
-
-(defvar org-babel-perl-preface nil)
-
-(defvar org-babel-perl-pp-wrapper-method
- nil)
-
-(defun org-babel-perl-evaluate (session ibody &optional result-type result-params)
- "Pass BODY to the Perl process in SESSION.
-If RESULT-TYPE equals `output' then return a list of the outputs
-of the statements in BODY, if RESULT-TYPE equals `value' then
-return the value of the last statement in BODY, as elisp."
- (when session (error "Sessions are not supported for Perl"))
- (let* ((body (concat org-babel-perl-preface ibody))
- (tmp-file (org-babel-temp-file "perl-"))
- (tmp-babel-file (org-babel-process-file-name
- tmp-file 'noquote)))
- (let ((results
- (pcase result-type
- (`output
- (with-temp-file tmp-file
- (insert
- (org-babel-eval org-babel-perl-command body))
- (buffer-string)))
- (`value
- (org-babel-eval org-babel-perl-command
- (format org-babel-perl-wrapper-method
- body tmp-babel-file))))))
- (when results
- (org-babel-result-cond result-params
- (org-babel-eval-read-file tmp-file)
- (org-babel-import-elisp-from-file tmp-file '(16)))))))
-
-(provide 'ob-perl)
-
-;;; ob-perl.el ends here