-;;; lirc.el --- Lambdalabs irc client -*- lexical-binding:t -*-
+;;; lirc.el --- Lightweight irc client -*- lexical-binding:t -*-
;; Copyright (C) 2021 Tim Vaughan
"Default full name.")
(defcustom lirc-user-name "plugd"
"Default user name.")
-(defcustom lirc-host "localhost"
+(defcustom lirc-host "irc.libera.chat"
"Default server.")
(defcustom lirc-port 6667
"Default port.")
-(defcustom lirc-prompt "> "
+(defcustom lirc-prompt-string "> "
"Prompt.")
;;; Faces
;;
+(defface lirc-prompt
+ '((t :inherit org-level-2))
+ "Face used for the prompt.")
+
+(defface lirc-channel
+ '((t :inherit org-list-dt))
+ "Face used for the channel name in the prompt.")
+
;;; Global variables
;;
(defvar lirc-response "")
+
+;;; Network process
+;;
+
(defun lirc-filter (proc string)
(dolist (line (split-string (concat lirc-response string) "\n"))
(if (string-suffix-p "\r" line)
- (lirc-process-msg-string (string-trim line))
+ (lirc-eval-msg-string (string-trim line))
(setq lirc-response line))))
(defun lirc-get-process ()
:nowait t
:buffer "*lirc*"))))
+;;; Messages
+;;
+
(defun lirc-as-string (obj)
(if obj
(with-output-to-string (princ obj))
(concat ":" (elt params (- (length params) 1)))
nil))))
+
+;;; Buffer
+;;
+
(defun lirc-display-string (string)
+ (with-current-buffer (get-buffer-create "*lirc*")
+ (save-excursion
+ (goto-char lirc-prompt-marker)
+ (let ((inhibit-read-only t))
+ (insert-before-markers (propertize (concat string "\n") 'read-only t))))))
+
+(defun lirc-connect ()
+ (lirc-send-msg (lirc-msg nil nil "USER" lirc-user-name 0 "*" lirc-full-name))
+ (lirc-send-msg (lirc-msg nil nil "NICK" lirc-nick)))
+
+(defun lirc-send-msg (msg)
+ (let ((proc (lirc-get-process)))
+ (process-send-string proc (concat (lirc-msg->string msg) "\r\n"))))
+
+(defun lirc-render-prompt ()
(with-current-buffer "*lirc*"
+ (set-marker-insertion-type lirc-prompt-marker nil)
+ (set-marker-insertion-type lirc-input-marker t)
(let ((inhibit-read-only t))
- (save-excursion
- (goto-char (point-max))
- (insert (propertize (concat string "\n") 'read-only t))))))
+ (delete-region lirc-prompt-marker lirc-input-marker))
+ (save-excursion
+ (goto-char lirc-prompt-marker)
+ (let ((inhibit-read-only t))
+ (insert
+ (propertize (if lirc-current-channel
+ lirc-current-channel
+ "[no channel]")
+ 'face 'lirc-channel
+ 'read-only t)
+ (propertize lirc-prompt-string
+ 'face 'lirc-prompt
+ 'read-only t
+ 'rear-nonsticky t))))
+ (set-marker-insertion-type lirc-input-marker nil)))
+
+(defvar lirc-prompt-marker nil
+ "Marker for prompt position in LIRC buffer.")
+
+(defvar lirc-input-marker nil
+ "Marker for prompt position in LIRC buffer.")
+
+(defun lirc-setup-buffer ()
+ (with-current-buffer (get-buffer-create "*lirc*")
+ (if (markerp lirc-prompt-marker)
+ (set-marker lirc-prompt-marker (point-max))
+ (setq lirc-prompt-marker (point-max-marker)))
+ (if (markerp lirc-input-marker)
+ (set-marker lirc-input-marker (point-max))
+ (setq lirc-input-marker (point-max-marker)))
+ (lirc-render-prompt)
+ (goto-char (point-max))
+ (recenter -1)))
+
+;;; Message evaluation
+;;
-(defun lirc-process-msg-string (string)
+(defun lirc-eval-msg-string (string)
(let* ((msg (lirc-string->msg string)))
(cond
((equal (lirc-msg-cmd msg) "PING")
(t
(lirc-display-string (lirc-msg->string msg))))))
-(defun lirc-connect ()
- (lirc-send-msg (lirc-msg nil nil "USER" lirc-user-name 0 "*" lirc-full-name))
- (lirc-send-msg (lirc-msg nil nil "NICK" lirc-nick)))
-(defun lirc-send-msg (msg)
- (let ((proc (lirc-get-process)))
- (process-send-string proc (concat (lirc-msg->string msg) "\r\n"))))
-
+;;; Command entering
+;;
+
+(defun lirc-enter-string (string)
+ (cond ((string-prefix-p "/" string)
+ (let ((cmd-str (substring string 1)))
+ (lirc-send-msg (lirc-msg nil nil cmd-str))))
+ (t
+ (error "Unknown command" string))))
+
+(defun lirc-enter ()
+ "Enter current contents of line after prompt."
+ (interactive)
+ (with-current-buffer "*lirc*"
+ (lirc-enter-string
+ (buffer-substring lirc-input-marker (point-max)))
+ (let ((inhibit-read-only t))
+ (delete-region lirc-input-marker (point-max)))))
+
+
+
+;;; Mode
+;;
+
+(defvar lirc-mode-map
+ (let ((map (make-sparse-keymap)))
+ (define-key map (kbd "RET") 'lirc-enter)
+ map))
+
+(define-derived-mode lirc-mode text-mode "lirc"
+ "Major mode for LIRC.")
+
+(when (fboundp 'evil-set-initial-state)
+ (evil-set-initial-state 'lirc-mode 'insert))
+
+;;; Main start procedure
+;;
(defun lirc ()
"Switch to *lirc* buffer."
(interactive)
- (pop-to-buffer-same-window "*lirc*")
+ (if (get-buffer "*lirc*")
+ (switch-to-buffer "*lirc*")
+ (switch-to-buffer "*lirc*"))
(lirc-mode)
- (lirc-connect))
+ (lirc-setup-buffer)
+ (lirc-connect)
+ "Started LIRC.")
-(define-derived-mode lirc-mode text-mode "lirc"
- "Major mode for LIRC.")
;;; lirc.el ends here
-:bs-mbpr348.d.ethz.ch