X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=blobdiff_plain;f=lurk.el;h=085a8ed77c993b1680292fbc53961944068d696b;hb=b6f2df4110c9ffe83bd3a3c4b3aa378682f8d626;hp=96b93aeb87ca17829e54a061d1fe7f3a9c5f0a5b;hpb=5b5f1cc35df3846056af4179cbf30296d99af506;p=lurk.git

diff --git a/lurk.el b/lurk.el
index 96b93ae..085a8ed 100644
--- a/lurk.el
+++ b/lurk.el
@@ -1,4 +1,4 @@
-;;; lurk.el --- Little Uni-buffer iRc Klient -*- lexical-binding:t -*-
+;;; lurk.el --- Little Unibuffer iRc Klient -*- lexical-binding:t -*-
 
 ;; Copyright (C) 2021 Tim Vaughan
 
@@ -35,7 +35,7 @@
 ;;
 
 (defgroup lurk nil
-  "Little Uni-buffer iRc Klient."
+  "Little Unibuffer iRc Klient."
   :group 'network)
 
 (defcustom lurk-nick "plugd"
@@ -45,11 +45,7 @@
   "Default quit message when none supplied.")
 
 (defcustom lurk-networks
-  '(("libera" "irc.libera.chat" 6697)
-    ("freenode" "chat.freenode.net" 6697)
-    ("tilde" "tilde.chat" 6697)
-    ("mbr" "mbrserver.com" 6667 :notls)
-    ("local" "localhost" 6697))
+  '(("libera" "irc.libera.chat" 6697))
   "IRC networks.")
 
 (defcustom lurk-allow-ipv6 nil
@@ -107,6 +103,19 @@
 (defvar lurk-debug nil
   "If non-nil, enable debug mode.")
 
+
+;;; Utility procedures
+;;
+
+(defun lurk--filtered-join (&rest args)
+  (string-join (seq-filter (lambda (el) el) args) " "))
+
+(defun lurk--as-string (obj)
+  (if obj
+      (with-output-to-string (princ obj))
+    nil))
+
+
 ;;; Network process
 ;;
 
@@ -182,11 +191,6 @@
 ;;; Server messages
 ;;
 
-(defun lurk--as-string (obj)
-  (if obj
-      (with-output-to-string (princ obj))
-    nil))
-
 (defun lurk-msg (tags src cmd &rest params)
   (list (lurk--as-string tags)
         (lurk--as-string src)
@@ -235,9 +239,6 @@ portion of the source component of the message, as LURK doesn't use this.")
         (apply #'lurk-msg (append (list tags src cmd) params)))
     (error "Failed to parse string " string)))
 
-(defun lurk--filtered-join (&rest args)
-  (string-join (seq-filter (lambda (el) el) args) " "))
-
 (defun lurk-msg->string (msg)
   (let ((tags (lurk-msg-tags msg))
         (src (lurk-msg-src msg))
@@ -368,22 +369,25 @@ portion of the source component of the message, as LURK doesn't use this.")
   "Marker for prompt position in LURK buffer.")
 
 (defun lurk-setup-header ()
-  (setq-local header-line-format
-              '(:eval
-                (let ((proc (get-process "lurk")))
-                  (if proc
-                      (concat
-                       "Host: " (car (process-contact proc))
-                       ", Context: "
-                       (if lurk-current-context
-                           (concat
-                            lurk-current-context
-                            " ("
-                            (number-to-string
-                             (length (lurk-get-context-users lurk-current-context)))
-                            " users)")
-                         "Server"))
-                    "No connection")))))
+  (with-current-buffer "*lurk*"
+    (setq-local header-line-format
+                '((:eval
+                   (let ((proc (get-process "lurk")))
+                     (if proc
+                         (concat
+                          "Host: " (car (process-contact proc))
+                          ", Context: "
+                          (if lurk-current-context
+                              (concat
+                               lurk-current-context
+                               " ("
+                               (number-to-string
+                                (length (lurk-get-context-users lurk-current-context)))
+                               " users)")
+                            "Server"))
+                       "No connection")))
+                  (:eval
+                   (if lurk-zoomed " [ZOOMED]" ""))))))
 
 (defun lurk-setup-buffer ()
   (with-current-buffer (get-buffer-create "*lurk*")
@@ -404,11 +408,11 @@ portion of the source component of the message, as LURK doesn't use this.")
 ;;; Output formatting and highlighting
 ;;
 
-;; Partially-implemented idea: the face text property can be
-;; a list of faces, applied in order.  By assigning each context
-;; a unique list and keeping track of these in a hash table, we can
-;; easily switch the face corresponding to a particular context
-;; by modifying the elements of this list.
+;; Idea: the face text property can be a list of faces, applied in
+;; order.  By assigning each context a unique list and keeping track
+;; of these in a hash table, we can easily switch the face
+;; corresponding to a particular context by modifying the elements of
+;; this list.
 ;;
 ;; More subtly, we make only the cdrs of this list shared among
 ;; all text of a given context, allowing the cars to be different
@@ -460,11 +464,12 @@ portion of the source component of the message, as LURK doesn't use this.")
                       'read-only t
                       'context context
                       'invisible context-atom)
-          (propertize (concat (lurk-buttonify-urls (apply #'concat strings)) "\n")
-                      'face (lurk-get-context-facelist context)
-                      'read-only t
-                      'context context
-                      'invisible context-atom)))))))
+          (lurk-add-formatting
+           (propertize (concat (apply #'lurk-buttonify-urls strings) "\n")
+                       'face (lurk-get-context-facelist context)
+                       'read-only t
+                       'context context
+                       'invisible context-atom))))))))
 
 (defun lurk-display-message (from to text)
   (let ((context (if (eq 'channel (lurk-get-context-type to))
@@ -543,17 +548,17 @@ portion of the source component of the message, as LURK doesn't use this.")
        (opt (group (: ":" (+ digit))))
        (opt (group (: "/"
                       (opt
-                       (* (any alnum "-/.,#:%=&_"))
-                       (any alnum "-/#:%=&_")))))))
+                       (* (any alnum "-/.,#:%=&_?~@+"))
+                       (any alnum "-/#:%=&_~@+")))))))
   "Imperfect regex used to find URLs in plain text.")
 
 (defun lurk-click-url (button)
   (browse-url (button-get button 'url)))
 
-(defun lurk-buttonify-urls (string)
+(defun lurk-buttonify-urls (&rest strings)
   "Turn substrings which look like urls in STRING into clickable buttons."
   (with-temp-buffer
-    (insert string)
+    (apply #'insert strings)
     (goto-char (point-min))
     (while (re-search-forward lurk-url-regex nil t)
       (let ((url (match-string 0)))
@@ -566,6 +571,34 @@ portion of the source component of the message, as LURK doesn't use this.")
                           'help-echo "Open URL in browser.")))
     (buffer-string)))
 
+(defun lurk-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 (any "\x02\x1D\x1F\x1E")) 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))))
+          (delete-region (match-beginning 0) (match-end 0))
+          (setq prev-point (point)))))
+    (buffer-string)))
+
 
 ;;; Message evaluation
 ;;
@@ -574,6 +607,7 @@ portion of the source component of the message, as LURK doesn't use this.")
   (if lurk-debug
       (lurk-display-string nil nil string))
   (let* ((msg (lurk-string->msg string)))
+    (lurk-process-autoreplies msg)
     (pcase (lurk-msg-cmd msg)
       ("PING"
        (lurk-send-msg
@@ -726,14 +760,68 @@ portion of the source component of the message, as LURK doesn't use this.")
        (lurk-display-notice nil (lurk-msg->string msg))))))
 
 
+;;; User-defined responses
+
+
+(defvar lurk-autoreply-table nil
+  "Table of autoreply messages.
+
+Each autoreply is a list of two elements: (matcher reply)
+
+Here matcher is a list:
+
+(network src cmd params ...)
+
+and reply is another list:
+
+ (cmd params ...)
+
+Each entry in the matcher list is a regular expression tested against the
+corresponding values in the incomming message.  Entries can be nil,
+in which case they match anything.")
+
+(defun lurk--lists-equal (l1 l2)
+    (if (and l1 l2)
+        (if (or (not (and (car l1) (car l2)))
+                (string-match (car l1) (car l2)))
+            (lurk--lists-equal (cdr l1) (cdr l2))
+          nil)
+      t))
+
+(defun lurk-process-autoreply (msg autoreply)
+  (let ((matcher (car autoreply))
+        (reply (cadr autoreply)))
+    (let ((network (car matcher)))
+      (when (and (or (not network)
+                     (and (get-process "lurk")
+                          (equal (car (process-contact (get-process "lurk")))
+                                 (cadr (assoc network lurk-networks)))))
+                 (lurk--lists-equal (cdr matcher)
+                                    (append (list (lurk-msg-src msg)
+                                                  (lurk-msg-cmd msg))
+                                            (lurk-msg-params msg))))
+        (lurk-send-msg
+         (lurk-msg nil nil (car reply) (cdr reply)))))))
+
+(defun lurk-process-autoreplies (msg)
+  (mapc
+   (lambda (autoreply)
+     (lurk-process-autoreply msg autoreply))
+   lurk-autoreply-table))
+
 ;;; Command entering
 ;;
 
 (defun lurk-enter-string (string)
   (if (string-prefix-p "/" string)
       (pcase (substring string 1)
-        ((rx "DEBUG")
-         (setq lurk-debug (not lurk-debug))
+        ((rx (: "DEBUG" (opt (: " " (let setting (or "ON" "OFF"))))))
+         (setq lurk-debug
+               (if setting
+                   (if (equal (upcase setting) "ON")
+                       t
+                     nil)
+                 (not lurk-debug)))
          (lurk-display-notice nil "Debug mode now " (if lurk-debug "on" "off") "."))
 
         ((rx "HEADER")
@@ -782,10 +870,10 @@ portion of the source component of the message, as LURK doesn't use this.")
            (setq lurk-nick nick)
            (lurk-display-notice nil "Set default nick to '" nick "'")))
 
-        ((rx "LIST")
+        ((rx (: "LIST" (* whitespace) string-end))
          (lurk-display-notice nil "This command can generate lots of output. Use `LIST -yes' if you're sure."))
 
-        ((rx (: "LIST" (+ whitespace) "-YES"))
+        ((rx (: "LIST" (+ whitespace) "-YES" (* whitespace) string-end))
          (lurk-send-msg (lurk-msg nil nil "LIST")))
 
         ((rx "MSG "
@@ -869,16 +957,31 @@ portion of the source component of the message, as LURK doesn't use this.")
     (lurk-zoom-in lurk-current-context))
   (setq lurk-zoomed (not lurk-zoomed)))
 
-(defun lurk-complete-nick ()
+(defun lurk-complete-input ()
   (interactive)
-  (when (and (>= (point) lurk-input-marker) lurk-current-context)
-    (let* ((end (max lurk-input-marker (point)))
-           (space-idx (save-excursion
-                        (re-search-backward " " lurk-input-marker t)))
-           (start (if space-idx (+ 1 space-idx) lurk-input-marker))
-           (completion-ignore-case t))
-      (unless (string-prefix-p "/" (buffer-substring start end))
-        (completion-in-region start end (lurk-get-context-users lurk-current-context))))))
+  (when (and (>= (point) lurk-input-marker))
+    (pcase (buffer-substring lurk-input-marker (point))
+      ((rx (: "/connect" (+ " ") (* (not whitespace)) string-end))
+       (let ((space-idx (save-excursion
+                          (re-search-backward " " lurk-input-marker t))))
+         (completion-in-region (+ 1 space-idx)
+                               (point)
+                               (mapcar (lambda (row) (car row)) lurk-networks))))
+      ((rx (: "/" (* (not whitespace)) string-end))
+       (message (buffer-substring lurk-input-marker (point)))
+       (completion-in-region lurk-input-marker (point)
+                             '("/connect"
+                               "/join"
+                               "/part"
+                               "/quit")))
+      (_
+       (let* ((end (max lurk-input-marker (point)))
+              (space-idx (save-excursion
+                           (re-search-backward " " lurk-input-marker t)))
+              (start (if space-idx (+ 1 space-idx) lurk-input-marker))
+              (completion-ignore-case t))
+         (unless (string-prefix-p "/" (buffer-substring start end))
+           (completion-in-region start end (lurk-get-context-users lurk-current-context))))))))
 
 
 ;;; Mode
@@ -887,7 +990,7 @@ portion of the source component of the message, as LURK doesn't use this.")
 (defvar lurk-mode-map
   (let ((map (make-sparse-keymap)))
     (define-key map (kbd "RET") 'lurk-enter)
-    (define-key map (kbd "<tab>") 'lurk-complete-nick)
+    (define-key map (kbd "<tab>") 'lurk-complete-input)
     (define-key map (kbd "C-c C-z") 'lurk-toggle-zoom)
     (define-key map (kbd "<C-tab>") 'lurk-cycle-contexts-forward)
     (define-key map (kbd "<C-S-tab>") 'lurk-cycle-contexts-reverse)