-;;; MURK --- Multiserver Unibuffer iRc Klient -*- lexical-binding:t -*-
+;;; murk.el --- Multiserver Unibuffer iRc Klient -*- lexical-binding:t -*-
;; Copyright (C) 2024 plugd
;; Author: plugd <plugd@thelambdalab.xyz>
;; Created: 11 May 2024
;; Version: 0.0
-;; Keywords: network
;; Homepage: http://thelambdalab.xyz/murk
-;; Package-Requires: ((emacs "26"))
+;; Keywords: comm
+;; Package-Requires: ((emacs "26.1"))
;; This file is not part of GNU Emacs.
;;; Commentary:
+;; A very simple IRC server which uses only a single buffer.
+
;;; Code:
(provide 'murk)
+(require 'cl-lib)
+
;;; Customizations
"Multiserver Unibuffer iRc Klient"
:group 'network)
-(defcustom murk-nick "plugd"
- "Default nick.")
+(defcustom murk-default-nick "plugd"
+ "Default nick."
+ :type '(string))
(defcustom murk-default-quit-msg "Bye"
- "Default quit message when none supplied.")
+ "Default quit message when none supplied."
+ :type '(string))
(defcustom murk-networks
- '(("libera" "irc.libera.chat" 6697)
- ("tilde" "tilde.chat" 6697))
- "IRC networks.")
+ '(("debug" "localhost" 6697)
+ ("libera" "irc.libera.chat" 6697)
+ ("tilde" "tilde.chat" 6697)
+ ("freenode" "chat.freenode.net" 6697))
+ "IRC networks."
+ :type '(alist :key-type string))
+
+(defcustom murk-show-joins nil
+ "Set to non-nil to be notified of joins, parts and quits.")
(defcustom murk-display-header t
- "If non-nil, use buffer header to display information on current host and channel.")
+ "If non-nil, use buffer header to display current host and channel."
+ :type '(boolean))
;;; Faces
;;
+(defface murk-text
+ '((t :inherit default))
+ "Face used for murk text.")
+
+(defface murk-prompt
+ '((t :inherit font-lock-keyword-face))
+ "Face used for the prompt.")
+
+(defface murk-context
+ '((t :inherit murk-context))
+ "Face used for the context name in the prompt.")
+
+(defface murk-faded
+ '((t :inherit shadow))
+ "Face used for faded murk text.")
+
+(defface murk-timestamp
+ '((t :inherit shadow))
+ "Face used for timestamps.")
+
+(defface murk-error
+ '((t :inherit error))
+ "Face used for murk error text.")
+
+(defface murk-notice
+ '((t :inherit warning))
+ "Face used for murk notice text.")
+
;;; Global variables
;;
(defvar murk-error-prefix "!!!")
(defvar murk-prompt-string ">")
+(defvar murk-debug nil
+ "If non-nil, enable debug mode.")
+
+
;;; Utility procedures
;;
(with-output-to-string (princ obj))
nil))
+
;;; Network processes
;;
(defun murk-connection-process (server)
(elt (assoc server murk-connection-table) 1))
-(defun murk-connection-response (server)
+(defun murk-connection-nick (server)
(elt (assoc server murk-connection-table) 2))
+(defun murk-set-connection-nick (server nick)
+ (setf (elt (assoc server murk-connection-table) 2) nick))
+
+(defun murk-connection-response (server)
+ (elt (assoc server murk-connection-table) 3))
+
(defun murk-set-connection-response (server string)
- (setf (elt (assoc server murk-connection-table) 2) string))
+ (setf (elt (assoc server murk-connection-table) 3) string))
+
+(defun murk-connection-new (server process nick)
+ (add-to-list 'murk-connection-table
+ (list server process nick "")))
-(defun murk-connection-close (server)
- (setq murk-connection-table (assoc-delete-all server murk-connection-table)))
+(defun murk-connection-remove (server)
+ (setq murk-connection-table
+ (seq-remove (lambda (row) (equal (car row) server))
+ murk-connection-table)))
(defun murk-make-server-filter (server)
- (lambda (proc string)
+ (lambda (_proc string)
(dolist (line (split-string (concat (murk-connection-response server) string)
"\n"))
(if (string-suffix-p "\r" line)
(murk-eval-msg-string server (string-trim line))
- (murk-set-connection-response line)))))
+ (murk-set-connection-response server line)))))
(defun murk-make-server-sentinel (server)
- (lambda (proc string)
+ (lambda (_proc string)
(unless (equal "open" (string-trim string))
(murk-display-error "Disconnected from server.")
- (murk-remove-contexts-for-server server)
- (murk-render-prompt)
- (murk-connection-close server))))
+ (murk-connection-remove server)
+ (murk-remove-server-contexts server)
+ (murk-render-prompt))))
(defun murk-start-process (server)
(let* ((row (assoc server murk-networks))
(defun murk-connect (server)
(if (assoc server murk-connection-table)
- (murk-display-error "Already connected to this network.")
+ (murk-display-error "Already connected to this network")
(if (not (assoc server murk-networks))
(murk-display-error "Network '" server "' is unknown.")
(let ((proc (murk-start-process server)))
- (add-to-list murk-connection-table
- (list server proc "")))
- (murk-send-msg server (murk-msg nil nil "USER" murk-nick 0 "*" murk-nick))
- (murk-send-msg server (murk-msg nil nil "NICK" murk-nick)))))
+ (murk-connection-new server proc murk-default-nick))
+ (murk-send-msg server (murk-msg nil nil "USER" murk-default-nick 0 "*" murk-default-nick))
+ (murk-send-msg server (murk-msg nil nil "NICK" murk-default-nick))
+ (murk-add-context (list server))
+ (murk-render-prompt))))
(defun murk-send-msg (server msg)
(if murk-debug
(let ((proc (murk-connection-process server)))
(if (and proc (eq (process-status proc) 'open))
(process-send-string proc (concat (murk-msg->string msg) "\r\n"))
- (murk-display-error "No server connection established.")
- (error "No server connection established"))))
+ (murk-display-error "No server connection established"))))
+
;;; Server messages
;;
(params-str (match-string 4 string))
(params
(if params-str
- (let* ((idx (cl-search ":" params-str))
+ (let* ((idx (seq-position params-str ?:))
(l (split-string (string-trim (substring params-str 0 idx))))
(r (if idx (list (substring params-str (+ 1 idx))) nil)))
(append l r))
nil)))
(apply #'murk-msg (append (list tags src cmd) params)))
- (error "Failed to parse string " string)))
+ (error "Failed to parse string %s" string)))
(defun murk-msg->string (msg)
(let ((tags (murk-msg-tags msg))
nil))))
-;;; Contexts and Servers
+;;; Contexts
;;
-;; A context is a list (server name ...) where name is a string
-;; representing either a channel name or nick, and server is a symbol
-;; identifying the server.
+;; A context is a list (server channel users) identifying the server
+;; and channel. The tail of the list contains the nicks of users
+;; present in the channel.
;;
;; Each server has a special context (server) used for messages
;; to/from the server itself.
The head of this list is always the current context.")
(defun murk-current-context ()
- "Returns the current context."
+ "Return the current context."
(if murk-contexts
(car murk-contexts)
nil))
+(defun murk-contexts-equal (c1 c2)
+ (if (murk-server-context-p c1)
+ (and (murk-server-context-p c2)
+ (equal (murk-context-server c1)
+ (murk-context-server c2)))
+ (and (not (murk-server-context-p c2))
+ (equal (seq-take c1 2)
+ (seq-take c2 2)))))
+
(defun murk-context-server (ctx) (elt ctx 0))
-(defun murk-context-name (ctx) (elt ctx 1))
+(defun murk-context-channel (ctx) (elt ctx 1))
+(defun murk-context-users (ctx) (elt ctx 2))
+(defun murk-set-context-users (ctx users)
+ (setcar (cddr ctx) users))
+(defun murk-server-context-p (ctx) (not (cdr ctx)))
+
+(defun murk-add-context (ctx)
+ (add-to-list 'murk-contexts ctx))
+
+(defun murk-remove-context (ctx)
+ (setq murk-contexts
+ (seq-remove
+ (lambda (this-ctx)
+ (murk-contexts-equal this-ctx ctx))
+ murk-contexts)))
+
+(defun murk-remove-server-contexts (server)
+ (setq murk-contexts
+ (seq-remove (lambda (row) (equal (car row) server))
+ murk-contexts)))
+
+(defun murk-context->string (ctx)
+ (if (murk-server-context-p ctx)
+ (concat "[" (murk-context-server ctx) "]")
+ (concat (murk-context-channel ctx) "@"
+ (murk-context-server ctx))))
+
+(defun murk-get-context (server &optional name)
+ (if name
+ (let ((test-ctx (list server name)))
+ (seq-find (lambda (ctx)
+ (equal (seq-take ctx 2) test-ctx))
+ murk-contexts))
+ (car (member (list server) murk-contexts))))
+
+(defun murk-cycle-contexts (&optional reverse)
+ (setq murk-contexts
+ (if reverse
+ (let ((nminus1 (- (length murk-contexts) 1)))
+ (cons
+ (elt murk-contexts nminus1)
+ (seq-take murk-contexts nminus1)))
+ (append (cdr murk-contexts) (list (car murk-contexts))))))
+
+(defun murk-add-context-users (ctx users)
+ (murk-set-context-users
+ ctx
+ (cl-union users (murk-context-users ctx))))
+
+(defun murk-del-context-user (ctx user)
+ (murk-set-context-users
+ ctx
+ (delete user (murk-context-users ctx))))
+
+(defun murk-del-server-user (server user)
+ (dolist (ctx murk-contexts)
+ (if (equal (murk-context-server ctx) server)
+ (murk-del-context-user ctx user))))
+
+(defun murk-rename-server-user (server old-nick new-nick)
+ (dolist (ctx murk-contexts)
+ (when (and (equal (murk-context-server ctx) server)
+ (member old-nick (murk-context-users ctx)))
+ (murk-del-context-user ctx old-nick)
+ (murk-add-context-users ctx (list new-nick)))))
;;; Buffer
;;
+(defvar murk-prompt-marker nil
+ "Marker for prompt position in murk buffer.")
+
+(defvar murk-input-marker nil
+ "Marker for prompt position in murk buffer.")
+
(defun murk-render-prompt ()
(with-current-buffer "*murk*"
(let ((update-point (= murk-input-marker (point)))
(insert
(propertize (let ((ctx (murk-current-context)))
(if ctx
- (concat (murk-context-name) "@" (murk-context-server ctx))
- ""))
+ (murk-context->string ctx)
+ ""))
'face 'murk-context
'read-only t)
(propertize murk-prompt-string
(if (car v)
(set-window-point (cadr v) murk-input-marker))))))
-(defvar murk-prompt-marker nil
- "Marker for prompt position in murk buffer.")
-
-(defvar murk-input-marker nil
- "Marker for prompt position in murk buffer.")
-
(defun murk-setup-header ()
- ;; To do
- )
+ (with-current-buffer "*murk*"
+ (setq-local header-line-format
+ '((:eval
+ (let* ((ctx (murk-current-context)))
+ (if ctx
+ (let ((server (murk-context-server ctx)))
+ (concat
+ "Network: " server ", "
+ (if (murk-server-context-p ctx)
+ "Server"
+ (concat
+ "Channel: "
+ (murk-context-channel ctx)
+ " ("
+ (number-to-string
+ (length (murk-context-users ctx)))
+ ")"))))
+ "No connection")))))))
(defun murk-setup-buffer ()
(with-current-buffer (get-buffer-create "*murk*")
(fill-region (point-min) (point-max) nil t)
(buffer-string))))
-(defun murk-context->string (context)
- (if context
- (concat (murk-context-name) "@" (murk-context-server context))
- nil))
-
-
(defun murk-display-string (context prefix &rest strings)
(with-current-buffer "*murk*"
(save-excursion
'read-only t
'context context
'invisible context-atom)
- (concat (apply #'murk-buttonify-urls strings) "\n"))))))
+ (murk-add-formatting
+ (propertize (concat (apply #'murk-buttonify-urls strings) "\n")
+ 'read-only t
+ 'context context
+ 'invisible context-atom)))))))
(murk-scroll-windows-to-last-line))
+(defun murk-display-message (server from to text)
+ (let ((context (if (string-prefix-p "#" to)
+ (murk-get-context server to)
+ (murk-get-context server))))
+ (murk-display-string
+ context
+ (if (murk-server-context-p context)
+ (concat "[" from " -> " to "]")
+ (concat (murk-context->string context) " <" from ">"))
+ text)))
+
+(defun murk-display-action (server from to action-text)
+ (let ((context (if (string-prefix-p "#" to)
+ (murk-get-context server to)
+ (murk-get-context server))))
+ (murk-display-string
+ context
+ (concat (murk-context->string context) " *")
+ from " " action-text)))
+
+(defun murk-display-notice (context &rest notices)
+ (murk-display-string
+ context
+ (propertize murk-notice-prefix 'face 'murk-notice)
+ (apply #'concat notices)))
+
+(defun murk-display-error (&rest messages)
+ (murk-display-string
+ nil
+ (propertize murk-error-prefix 'face 'murk-error)
+ (apply #'concat messages)))
+
(defun murk--start-of-final-line ()
(with-current-buffer "*murk*"
(save-excursion
'help-echo "Open URL in browser.")))
(buffer-string)))
+(defun murk-add-formatting (string)
+ (with-temp-buffer
+ (insert string)
+ (goto-char (point-min))
+ (let ((bold nil)
+ (italics nil)
+ (underline nil)
+ (strikethrough nil)
+ (prev-point (point)))
+ (while (re-search-forward (rx (or (any "\x02\x1D\x1F\x1E\x0F")
+ (: "\x03" (+ digit) (opt "," (* digit)))))
+ nil t)
+ (let ((beg (+ (match-beginning 0) 1)))
+ (if bold
+ (add-face-text-property prev-point beg '(:weight bold)))
+ (if italics
+ (add-face-text-property prev-point beg '(:slant italic)))
+ (if underline
+ (add-face-text-property prev-point beg '(:underline t)))
+ (if strikethrough
+ (add-face-text-property prev-point beg '(:strike-through t)))
+ (pcase (match-string 0)
+ ("\x02" (setq bold (not bold)))
+ ("\x1D" (setq italics (not italics)))
+ ("\x1F" (setq underline (not underline)))
+ ("\x1E" (setq strikethrough (not strikethrough)))
+ ("\x0F" ; Reset
+ (setq bold nil)
+ (setq italics nil)
+ (setq underline nil)
+ (setq strikethrough nil))
+ (_))
+ (delete-region (match-beginning 0) (match-end 0))
+ (setq prev-point (point)))))
+ (buffer-string)))
+
+
+;;; Message evaluation
+;;
+
+(defun murk-eval-msg-string (server string)
+ (if murk-debug
+ (murk-display-string nil nil string))
+ (let* ((msg (murk-string->msg string)))
+ (pcase (murk-msg-cmd msg)
+ ("PING"
+ (murk-send-msg server
+ (murk-msg nil nil "PONG" (murk-msg-params msg))))
+
+ ("PONG")
+
+ ("001" ; RPL_WELCOME
+ (let* ((params (murk-msg-params msg))
+ (nick (elt params 0))
+ (text (string-join (seq-drop params 1) " ")))
+ (murk-set-connection-nick server nick)
+ (murk-display-notice nil text)))
+
+ ("353" ; NAMEREPLY
+ (let* ((params (murk-msg-params msg))
+ (channel (elt params 2))
+ (names (split-string (elt params 3)))
+ (ctx (murk-get-context server channel)))
+ (if ctx
+ (murk-add-context-users ctx names)
+ (murk-display-notice nil "Users in " channel
+ ": " (string-join names " ")))))
+
+ ("366" ; ENDOFNAMES
+ (let* ((params (murk-msg-params msg))
+ (channel (elt params 1))
+ (ctx (murk-get-context server channel)))
+ (if ctx
+ (murk-display-notice
+ ctx
+ (murk--as-string (length (murk-context-users ctx)))
+ " users in " channel)
+ (murk-display-notice nil "End of " channel " names list."))))
+
+ ("331" ; RPL_NOTOPIC
+ (let* ((params (murk-msg-params msg))
+ (channel (elt params 1))
+ (ctx (murk-get-context server channel)))
+ (murk-display-notice ctx "No topic set.")))
+
+ ("332" ; RPL_TOPIC
+ (let* ((params (murk-msg-params msg))
+ (channel (elt params 1))
+ (topic (elt params 2))
+ (ctx (murk-get-context server channel)))
+ (murk-display-notice ctx "Topic: " topic)))
+
+ ((rx (= 3 (any digit)))
+ (murk-display-notice nil (mapconcat 'identity (cdr (murk-msg-params msg)) " ")))
+
+ ((and "JOIN"
+ (guard (equal (murk-connection-nick server)
+ (murk-msg-src msg))))
+ (let ((channel (car (murk-msg-params msg))))
+ (murk-add-context (list server channel nil))
+ (murk-display-notice (murk-current-context)
+ "Joining channel " channel " on " server)
+ (murk-render-prompt)))
+
+ ("JOIN"
+ (let* ((channel (car (murk-msg-params msg)))
+ (nick (murk-msg-src msg))
+ (ctx (murk-get-context server channel)))
+ (murk-add-context-users ctx (list nick))
+ (if murk-show-joins
+ (murk-display-notice ctx nick " joined channel " channel
+ " on " server))))
+
+ ((and "PART"
+ (guard (equal (murk-connection-nick server)
+ (murk-msg-src msg))))
+ (let ((channel (car (murk-msg-params msg))))
+ (murk-display-notice (murk-current-context) "Left channel " channel)
+ (murk-remove-context (list server channel))
+ (murk-render-prompt)))
+
+ ("PART"
+ (let* ((channel (car (murk-msg-params msg)))
+ (nick (murk-msg-src msg))
+ (ctx (murk-get-context server channel)))
+ (murk-del-context-user ctx nick)
+ (if murk-show-joins
+ (murk-display-notice ctx nick " left channel " channel
+ " on " server))))
+
+ ((and "NICK"
+ (guard (equal (murk-connection-nick server)
+ (murk-msg-src msg))))
+ (let ((new-nick (car (murk-msg-params msg)))
+ (old-nick (murk-connection-nick server)))
+ (murk-set-connection-nick server new-nick)
+ (murk-rename-server-user server old-nick new-nick)
+ (murk-display-notice nil "Nick set to " new-nick " on " server)))
+
+ ("NICK"
+ (let ((old-nick (murk-msg-src msg))
+ (new-nick (car (murk-msg-params msg))))
+ (murk-display-notice nil old-nick " is now known as " new-nick
+ " on " server)
+ (murk-rename-server-user server old-nick new-nick)))
+
+ ("TOPIC"
+ (let ((channel (car (murk-msg-params msg)))
+ (nick (murk-msg-src msg))
+ (topic (cadr (murk-msg-params msg))))
+ (murk-display-notice (murk-get-context server channel)
+ nick " set the topic: " topic)))
+
+ ("QUIT"
+ (let ((nick (murk-msg-src msg))
+ (reason (mapconcat 'identity (murk-msg-params msg) " ")))
+ (murk-del-server-user server nick)
+ (if murk-show-joins
+ (murk-display-notice nil nick " quit: " reason))))
+
+ ("PRIVMSG"
+ (let* ((from (murk-msg-src msg))
+ (params (murk-msg-params msg))
+ (to (car params))
+ (text (cadr params)))
+ (pcase text
+ ("\01VERSION\01"
+ (let ((version-string (concat murk-version " - running on GNU Emacs " emacs-version)))
+ (murk-send-msg server
+ (murk-msg nil nil "NOTICE"
+ (list from (concat "\01VERSION "
+ version-string
+ "\01")))))
+ (murk-display-notice nil "CTCP version request received from "
+ from " on " server))
+
+ ((rx (let ping (: "\01PING " (* (not "\01")) "\01")))
+ (murk-send-msg server (murk-msg nil nil "NOTICE" (list from ping)))
+ (murk-display-notice nil "CTCP ping received from " from " on " server))
+
+ ("\01USERINFO\01"
+ (murk-display-notice nil "CTCP userinfo request from " from
+ " on " server " (no response sent)"))
+
+ ("\01CLIENTINFO\01"
+ (murk-display-notice nil "CTCP clientinfo request from " from
+ " on " server " (no response sent)"))
+
+ ((rx (: "\01ACTION " (let action-text (* (not "\01"))) "\01"))
+ (murk-display-action server from to action-text))
+
+ (_
+ (murk-display-message server from to text)))))
+
+ (_
+ (murk-display-notice nil (murk-msg->string msg))))))
+
+;;; Commands
+;;
+
+(defvar murk-command-table
+ '(("DEBUG" "Toggle debug mode on/off." murk-command-debug murk-boolean-completions)
+ ("HEADER" "Toggle display of header." murk-command-header murk-boolean-completions)
+ ("SHOWJOINS" "Toggles display of joins/parts." murk-command-showjoins murk-boolean-completions)
+ ("NETWORKS" "List known IRC networks." murk-command-networks)
+ ("CONNECT" "Connect to an IRC network." murk-command-connect murk-network-completions)
+ ("QUIT" "Disconnect from current network." murk-command-quit)
+ ("JOIN" "Join one or more channels." murk-command-join)
+ ("PART" "Leave channel." murk-command-part murk-context-completions)
+ ("NICK" "Change nick." murk-command-nick)
+ ("LIST" "Display details of one or more channels." murk-command-list)
+ ("TOPIC" "Set/query topic for current channel." murk-command-topic)
+ ("USERS" "List nicks of users in current context." murk-command-users)
+ ("MSG" "Send private message to user." murk-command-msg murk-nick-completions)
+ ("ME" "Display action." murk-command-me)
+ ("CLEAR" "Clear buffer text." murk-command-clear murk-context-completions)
+ ("HELP" "Display help on client commands." murk-command-help murk-help-completions))
+ "Table of commands explicitly supported by murk.")
+
+(defun murk-boolean-completions ()
+ '("on" "off"))
+
+(defun murk-network-completions ()
+ (mapcar (lambda (row) (car row)) murk-networks))
+
+(defun murk-command-help (params)
+ (if params
+ (let* ((cmd-str (upcase (car params)))
+ (row (assoc cmd-str murk-command-table #'equal)))
+ (if row
+ (progn
+ (murk-display-notice nil "Help for \x02" cmd-str "\x02:")
+ (murk-display-notice nil " " (elt row 1)))
+ (murk-display-notice nil "No such (client-interpreted) command.")))
+ (murk-display-notice nil "Client-interpreted commands:")
+ (dolist (row murk-command-table)
+ (murk-display-notice nil " \x02" (elt row 0) "\x02: " (elt row 1)))
+ (murk-display-notice nil "Use /HELP COMMAND to display information about a specific command.")))
+
+(defun murk-command-debug (params)
+ (setq murk-debug
+ (if params
+ (if (equal (upcase (car params)) "ON")
+ t
+ nil)
+ (not murk-debug)))
+ (murk-display-notice nil "Debug mode now " (if murk-debug "on" "off") "."))
+
+(defun murk-command-header (params)
+ (if
+ (if params
+ (equal (upcase (car params)) "ON")
+ (not header-line-format))
+ (progn
+ (murk-setup-header)
+ (murk-display-notice nil "Header enabled."))
+ (setq-local header-line-format nil)
+ (murk-display-notice nil "Header disabled.")))
+
+(defun murk-command-showjoins (params)
+ (setq murk-show-joins
+ (if params
+ (if (equal (upcase (car params)) "ON")
+ t
+ nil)
+ (not murk-show-joins)))
+ (murk-display-notice nil "Joins/parts will now be "
+ (if murk-show-joins "shown" "hidden") "."))
+
+(defun murk-command-connect (params)
+ (if params
+ (let ((network (car params)))
+ (murk-display-notice nil "Attempting to connect to " network "...")
+ (murk-connect network))
+ (murk-display-notice nil "Usage: /connect <network>")))
+
+(defun murk-command-networks (_params)
+ (murk-display-notice nil "Currently-known networks:")
+ (dolist (row murk-networks)
+ (seq-let (network server port &rest _others) row
+ (murk-display-notice nil "\t" network
+ " [" server
+ " " (number-to-string port) "]")))
+ (murk-display-notice nil "(Modify the `murk-networks' variable to add more.)"))
+
+(defun murk-command-quit (params)
+ (let ((ctx (murk-current-context)))
+ (if (not ctx)
+ (murk-display-error "No current context")
+ (let ((quit-msg (if params (string-join params " ") murk-default-quit-msg)))
+ (murk-send-msg
+ (murk-context-server ctx)
+ (murk-msg nil nil "QUIT" quit-msg))))))
+
+(defun murk-command-join (params)
+ (if params
+ (let ((server (murk-context-server (murk-current-context))))
+ (dolist (channel params)
+ (murk-send-msg server (murk-msg nil nil "JOIN" channel))))
+ (murk-display-notice nil "Usage: /join channel [channel2 ...]")))
+
+(defun murk-command-part (params)
+ (let* ((server (murk-context-server (murk-current-context)))
+ (channel (if params
+ (car params)
+ (murk-context-channel (murk-current-context)))))
+ (if channel
+ (murk-send-msg server (murk-msg nil nil "PART" channel))
+ (murk-display-error "No current channel to leave"))))
+
+(defun murk-command-nick (params)
+ (if params
+ (let ((new-nick (string-join params " "))
+ (ctx (murk-current-context)))
+ (if ctx
+ (murk-send-msg (murk-context-server ctx)
+ (murk-msg nil nil "NICK" new-nick))
+ (murk-display-error "No current connection")))
+ (murk-display-notice nil "Usage: /nick <new-nick>")))
+
+(defun murk-command-list (params)
+ (let ((ctx (murk-current-context)))
+ (if ctx
+ (if (not params)
+ (murk-display-notice nil "This command can generate lots of output. Use `/LIST -yes' if you really want this, or `/LIST <channel_regexp>' to reduce the output.")
+ (let ((server (murk-context-server ctx)))
+ (if (equal (upcase (car params)) "-YES")
+ (murk-send-msg server (murk-msg nil nil "LIST"))
+ (murk-send-msg server (murk-msg nil nil "LIST"
+ (car params))))))
+ (murk-display-error "No current connection"))))
+
+(defun murk-command-topic (params)
+ (let ((ctx (murk-current-context)))
+ (if (and ctx (not (murk-server-context-p ctx)))
+ (let ((server (murk-context-server ctx))
+ (channel (murk-context-channel ctx)))
+ (if params
+ (murk-send-msg server
+ (murk-msg nil nil "TOPIC" channel
+ (string-join params " ")))
+ (murk-send-msg server
+ (murk-msg nil nil "TOPIC" channel))))
+ (murk-display-notice nil "No current channel."))))
+
+(defun murk-command-msg (params)
+ (let ((server (murk-context-server (murk-current-context))))
+ (if (and params (>= (length params) 2))
+ (let ((to (car params))
+ (text (string-join (cdr params) " ")))
+ (murk-send-msg server (murk-msg nil nil "PRIVMSG" to text))
+ (murk-display-message server
+ (murk-connection-nick server)
+ to text))
+ (murk-display-notice nil "Usage: /msg <nick> <message>"))))
+
+(defun murk-command-me (params)
+ (let* ((ctx (murk-current-context))
+ (server (murk-context-server ctx)))
+ (if (and ctx (not (murk-server-context-p ctx)))
+ (if params
+ (let* ((channel (murk-context-channel ctx))
+ (my-nick (murk-connection-nick server))
+ (action (string-join params " "))
+ (ctcp-text (concat "\01ACTION " action "\01")))
+ (murk-send-msg server
+ (murk-msg nil nil "PRIVMSG"
+ (list channel ctcp-text)))
+ (murk-display-action server my-nick channel action))
+ (murk-display-notice nil "Usage: /me <action>"))
+ (murk-display-notice nil "No current channel."))))
+
+(defun murk-command-users (_params)
+ (let ((ctx (murk-current-context)))
+ (if (and ctx (not (murk-server-context-p ctx)))
+ (let ((channel (murk-context-channel ctx))
+ (server (murk-context-server ctx))
+ (users (murk-context-users ctx)))
+ (murk-display-notice ctx "Users in " channel " on " server ":")
+ (murk-display-notice ctx (string-join users " ")))
+ (murk-display-notice nil "No current channel."))))
+
+
+;;; Command entering
+;;
+
+(defun murk-enter-string (string)
+ (if (string-prefix-p "/" string)
+ (pcase string
+ ((rx (: "/" (let cmd-str (+ (not whitespace)))
+ (opt (+ whitespace)
+ (let params-str (+ anychar))
+ string-end)))
+ (let ((command-row (assoc (upcase cmd-str) murk-command-table #'equal))
+ (params (if params-str
+ (split-string params-str nil t)
+ nil)))
+ (if (and command-row (elt command-row 2))
+ (funcall (elt command-row 2) params)
+ (murk-send-msg
+ (murk-context-server (murk-current-context))
+ (murk-msg nil nil (upcase cmd-str) params)))))
+ (_
+ (murk-display-error "Badly formed command")))
+ (unless (string-empty-p string)
+ (let ((ctx (murk-current-context)))
+ (if ctx
+ (if (not (murk-server-context-p ctx))
+ (let ((server (murk-context-server ctx))
+ (channel (murk-context-channel ctx)))
+ (murk-send-msg server
+ (murk-msg nil nil "PRIVMSG" channel string))
+ (murk-display-message server
+ (murk-connection-nick server)
+ channel string))
+ (murk-display-error "No current channel"))
+ (murk-display-error "No current context"))))))
+
+
+;;; Command history
+;;
+
+(defvar murk-history nil
+ "Commands and messages sent in current session.")
+
+(defvar murk-history-index nil)
+
+(defun murk-history-cycle (delta)
+ (when murk-history
+ (with-current-buffer "*murk*"
+ (if murk-history-index
+ (setq murk-history-index
+ (max 0
+ (min (- (length murk-history) 1)
+ (+ delta murk-history-index))))
+ (setq murk-history-index 0))
+ (delete-region murk-input-marker (point-max))
+ (insert (elt murk-history murk-history-index)))))
+
+
+;;; Interactive commands
+;;
+
+(defun murk-enter ()
+ "Enter current contents of line after prompt."
+ (interactive)
+ (with-current-buffer "*murk*"
+ (let ((line (buffer-substring murk-input-marker (point-max))))
+ (push line murk-history)
+ (setq murk-history-index nil)
+ (let ((inhibit-read-only t))
+ (delete-region murk-input-marker (point-max)))
+ (murk-enter-string line))))
+
+(defun murk-history-next ()
+ (interactive)
+ (murk-history-cycle -1))
+
+(defun murk-history-prev ()
+ (interactive)
+ (murk-history-cycle +1))
+
+(defun murk-cycle-contexts-forward ()
+ (interactive)
+ (murk-cycle-contexts)
+ (murk-render-prompt))
+
+(defun murk-cycle-contexts-reverse ()
+ (interactive)
+ (murk-cycle-contexts t)
+ (murk-render-prompt))
+
+(defun murk-complete-input ()
+ (interactive)
+ (let ((completion-ignore-case t))
+ (when (>= (point) murk-input-marker)
+ (pcase (buffer-substring murk-input-marker (point))
+ ((rx (: "/" (let cmd-str (+ (not whitespace))) (+ " ") (* (not whitespace)) string-end))
+ (let ((space-idx (save-excursion
+ (re-search-backward " " murk-input-marker t)))
+ (table-row (assoc (upcase cmd-str) murk-command-table #'equal)))
+ (if (and table-row (elt table-row 3))
+ (let* ((completions-nospace (funcall (elt table-row 3)))
+ (completions (mapcar (lambda (el) (concat el " ")) completions-nospace)))
+ (completion-in-region (+ 1 space-idx) (point) completions)))))
+ ((rx (: "/" (* (not whitespace)) string-end))
+ (message (buffer-substring murk-input-marker (point)))
+ (completion-in-region murk-input-marker (point)
+ (mapcar (lambda (row) (concat "/" (car row) " "))
+ murk-command-table)))
+ (_
+ (let* ((end (max murk-input-marker (point)))
+ (space-idx (save-excursion
+ (re-search-backward " " murk-input-marker t)))
+ (start (if space-idx (+ 1 space-idx) murk-input-marker)))
+ (unless (string-prefix-p "/" (buffer-substring start end))
+ (let* ((users (murk-context-users (murk-current-context)))
+ (users-no@ (mapcar
+ (lambda (u) (car (split-string u "@" t)))
+ users)))
+ (completion-in-region start end users-no@)))))))))
;;; Mode
;;
(let ((map (make-sparse-keymap)))
(define-key map (kbd "RET") 'murk-enter)
(define-key map (kbd "TAB") 'murk-complete-input)
+ (define-key map (kbd "<C-up>") 'murk-history-prev)
+ (define-key map (kbd "<C-down>") 'murk-history-next)
+ (define-key map (kbd "<C-tab>") 'murk-cycle-contexts-forward)
+ (define-key map (kbd "<C-S-iso-lefttab>") 'murk-cycle-contexts-reverse)
+ (define-key map (kbd "<C-S-tab>") 'murk-cycle-contexts-reverse)
(when (fboundp 'evil-define-key*)
(evil-define-key* 'motion map
(kbd "TAB") 'murk-complete-input))
(murk-setup-buffer))
"Started murk.")
-
;;; murk.el ends here
The Lambda Lab / projects / lurk.git / blobdiff