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dsptl.el/dsptl.el

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2022-10-02 21:38:38 +00:00
;;; dsptl.el --- Dead Simple PlainText Links -*- lexical-binding: t; -*-
;; Copyright (C) 2022 Lucien Cartier-Tilet
;; Author: Lucien Cartier-Tilet <lucien@phundrak.com>
;; Maintainer: Lucien Cartier-Tilet <lucien@phundrak.com>
;; URL: https://github.com/Phundrak/dsptl.el
;; Version: 0.1.0
;; Package-Requires: ((emacs "26.1") (f "0.20") (dash "2.2.0"))
;; Keywords: convenience text
;; This file is not part of GNU Emacs.
;; This program 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.
;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; Dead Simple PlainText Links
;;
;;; Code:
(require 'dash)
(require 'f)
(require 'rx)
(defgroup dsptl ()
"Dead Simple PlainText Links."
:group 'text
:prefix "dsptl-"
:link '(url-link :tag "GitHub" "https://github.com/Phundrak/dsptl.el")
:link '(url-link :tag "Gitea" "https://labs.phundrak.com/phundrak/dsptl.el"))
(defcustom dsptl-prefix "file"
"Prefix used by DSPTL to indicate a link to another file."
:group 'dsptl
:type 'string
:safe #'stringp)
(defun dsptl--list-links ()
"List all links in the current active directory."
(let ((files (-filter #'f-file-p (f-entries default-directory)))
(case-fold-search t) ;; case insensitive
(links nil))
(dolist (file files links)
(with-temp-buffer
;; FIXME: Dont do this for binary files
(insert-file-contents file)
(while (re-search-forward (rx (literal dsptl-prefix)
(+ space)
(group-n 1 (seq (+ (not space)) alnum))
(? punctuation))
nil t nil)
(let ((source (f-relative file))
(target (match-string-no-properties 1)))
(when (f-file-p target)
(push `(,source . ,target) links))))))))
(defun dsptl-display-links-directory ()
"Display all links found in the current directory."
(interactive)
(let ((links (dsptl--list-links)))
(switch-to-buffer (format "*Links in %s*" default-directory))
(dolist (link links)
(insert (format "%s\t->\t%s\n" (car link) (cdr link))))))
(provide 'dsptl)
;;; dsptl.el ends here