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bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
105 lines
3.6 KiB
EmacsLisp
105 lines
3.6 KiB
EmacsLisp
;;; ob-sed.el --- Babel Functions for Sed Scripts -*- lexical-binding: t; -*-
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;; Copyright (C) 2015-2017 Free Software Foundation, Inc.
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;; Author: Bjarte Johansen
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;; Keywords: literate programming, reproducible research
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;; Version: 0.1.0
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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 <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Provides a way to evaluate sed scripts in Org mode.
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;;; Usage:
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;; Add to your Emacs config:
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;; (org-babel-do-load-languages
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;; 'org-babel-load-languages
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;; '((sed . t)))
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;; In addition to the normal header arguments, ob-sed also provides
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;; :cmd-line and :in-file. :cmd-line allows one to pass other flags to
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;; the sed command like the "--in-place" flag which makes sed edit the
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;; file pass to it instead of outputting to standard out or to a
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;; different file. :in-file is a header arguments that allows one to
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;; tell Org Babel which file the sed script to act on.
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;;; Code:
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(require 'ob)
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(defvar org-babel-sed-command "sed"
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"Name of the sed executable command.")
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(defvar org-babel-tangle-lang-exts)
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(add-to-list 'org-babel-tangle-lang-exts '("sed" . "sed"))
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(defconst org-babel-header-args:sed
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'((:cmd-line . :any)
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(:in-file . :any))
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"Sed specific header arguments.")
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(defvar org-babel-default-header-args:sed '()
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"Default arguments for evaluating a sed source block.")
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(defun org-babel-execute:sed (body params)
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"Execute a block of sed code with Org Babel.
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BODY is the source inside a sed source block and PARAMS is an
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association list over the source block configurations. This
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function is called by `org-babel-execute-src-block'."
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(message "executing sed source code block")
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(let* ((result-params (cdr (assq :result-params params)))
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(cmd-line (cdr (assq :cmd-line params)))
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(in-file (cdr (assq :in-file params)))
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(code-file (let ((file (org-babel-temp-file "sed-")))
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(with-temp-file file
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(insert body)) file))
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(stdin (let ((stdin (cdr (assq :stdin params))))
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(when stdin
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(let ((tmp (org-babel-temp-file "sed-stdin-"))
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(res (org-babel-ref-resolve stdin)))
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(with-temp-file tmp
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(insert res))
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tmp))))
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(cmd (mapconcat #'identity
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(remq nil
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(list org-babel-sed-command
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(format "--file=\"%s\"" code-file)
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cmd-line
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in-file))
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" ")))
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(org-babel-reassemble-table
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(let ((results
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(cond
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(stdin (with-temp-buffer
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(call-process-shell-command cmd stdin (current-buffer))
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(buffer-string)))
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(t (org-babel-eval cmd "")))))
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(when results
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(org-babel-result-cond result-params
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results
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(let ((tmp (org-babel-temp-file "sed-results-")))
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(with-temp-file tmp (insert results))
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(org-babel-import-elisp-from-file tmp)))))
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(org-babel-pick-name
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(cdr (assq :colname-names params)) (cdr (assq :colnames params)))
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(org-babel-pick-name
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(cdr (assq :rowname-names params)) (cdr (assq :rownames params))))))
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(provide 'ob-sed)
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;;; ob-sed.el ends here
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