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;;; reddio.el -- reddit client through reddio -*- lexical-binding: t -*-
;; Copyright (C) 2024 Free Software Foundation, Inc.
;; Author: Yuchen Pei <id@ypei.org>
;; Package-Requires: ((emacs "29.4"))
;; This file is part of dotted.
;; dotted is free software: you can redistribute it and/or modify it under
;; the terms of the GNU Affero General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; dotted 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 Affero General
;; Public License for more details.
;; You should have received a copy of the GNU Affero General Public
;; License along with dotted. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; reddit client through reddio.
;;; Code:
(defvar reddio-buffer "*reddio*")
(defvar reddio-dir (locate-user-emacs-file "reddio")
"Path to local directory of saved threads.")
(defun reddio-make-filename (url)
(string-match "/r/\\([^/]+\\)/comments/\\([^/]+\\)/\\([^/]+\\)" url)
(file-name-concat
reddio-dir
(format "%s.%s.%s.txt"
(match-string 1 url)
(match-string 3 url)
(match-string 2 url))))
(defun reddio-save-text-and-switch-to-buffer (text file-name)
"Save TEXT to FILE-NAME and switch to buffer."
(let ((buffer (find-file-noselect file-name))
(coding-system-for-write 'utf-8))
(with-current-buffer buffer
(let ((inhibit-read-only t))
(erase-buffer)
(insert text))
(goto-char (point-min))
(save-buffer)
(revert-buffer t t))
(switch-to-buffer buffer)))
(defun reddio-open-url (url)
(interactive "sReddit link: ")
(let ((text
(when (string-match "/\\(comments/[^/]+\\)/" url)
(with-temp-buffer
(if (= 0 (call-process "reddio" nil (current-buffer) nil
"print" "-l" "500"
(match-string 1 url)))
(goto-char (point-min))
(error "reddio process failed: %s" (buffer-string)))
(delete-trailing-whitespace)
(buffer-string)))))
(reddio-save-text-and-switch-to-buffer
text
(reddio-make-filename url))))
(defun reddio-reddit-url-p (url)
"e.g.
https://www.reddit.com/r/linux/comments/cs3os6/introducing_reddio_a_commandline_interface_for/"
(let ((urlobj (url-generic-parse-url url)))
(and (string-match-p "^.*\\<reddit.com$" (url-host urlobj))
(string-match-p "^/r/[^/]+/comments/[^/]+/.+$" (url-filename urlobj)))))
(provide 'reddio)
;;; reddio.el ends here
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