2022-10-02 21:38:38 +00:00
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;;; dsptl.el --- Dead Simple PlainText Links -*- lexical-binding: t; -*-
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;; Copyright (C) 2022 Lucien Cartier-Tilet
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;; Author: Lucien Cartier-Tilet <lucien@phundrak.com>
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;; Maintainer: Lucien Cartier-Tilet <lucien@phundrak.com>
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;; URL: https://github.com/Phundrak/dsptl.el
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;; Version: 0.1.0
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2022-10-02 21:59:54 +00:00
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;; Package-Requires: ((emacs "26.1") (f "0.20"))
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2022-10-02 21:38:38 +00:00
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;; Keywords: convenience text
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;; This file is not part of GNU Emacs.
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;; This program 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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;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;; Dead Simple PlainText Links
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;;
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;;; Code:
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(require 'f)
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(require 'rx)
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(defgroup dsptl ()
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"Dead Simple PlainText Links."
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:group 'text
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:prefix "dsptl-"
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:link '(url-link :tag "GitHub" "https://github.com/Phundrak/dsptl.el")
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:link '(url-link :tag "Gitea" "https://labs.phundrak.com/phundrak/dsptl.el"))
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(defcustom dsptl-prefix "file"
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"Prefix used by DSPTL to indicate a link to another file."
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:group 'dsptl
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:type 'string
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:safe #'stringp)
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(defun dsptl--list-links ()
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"List all links in the current active directory."
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(let ((files (seq-filter #'f-file-p (f-entries default-directory)))
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2022-10-02 21:38:38 +00:00
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(case-fold-search t) ;; case insensitive
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(links nil))
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(dolist (file files links)
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(with-temp-buffer
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;; FIXME: Don’t do this for binary files
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(insert-file-contents file)
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(while (re-search-forward (rx (literal dsptl-prefix)
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(+ space)
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(group-n 1 (seq (+ (not space)) alnum))
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(? punctuation))
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nil t nil)
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2022-10-02 22:00:46 +00:00
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(let ((source (file-relative-name file))
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2022-10-02 21:38:38 +00:00
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(target (match-string-no-properties 1)))
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2022-10-02 22:00:46 +00:00
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(when (file-regular-p target)
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2022-10-02 21:38:38 +00:00
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(push `(,source . ,target) links))))))))
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(defun dsptl-display-links-directory ()
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"Display all links found in the current directory."
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(interactive)
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(let ((links (dsptl--list-links)))
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(switch-to-buffer (format "*Links in %s*" default-directory))
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2022-10-02 21:47:08 +00:00
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(setq tabulated-list-format [("Source File" 25 t)
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("Target" 25 t)]
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tabulated-list-entries (mapcar (lambda (link)
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(list (cdr link) (vector (car link) (cdr link))))
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links))
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(tabulated-list-init-header)
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(tabulated-list-print t)
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(read-only-mode 1)))
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2022-10-02 21:38:38 +00:00
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(provide 'dsptl)
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;;; dsptl.el ends here
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