forked from bzg/org-mode
-
Notifications
You must be signed in to change notification settings - Fork 0
/
ol-irc.el
272 lines (245 loc) · 9.57 KB
/
ol-irc.el
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
;;; ol-irc.el --- Links to IRC Sessions -*- lexical-binding: t; -*-
;;
;; Copyright (C) 2008-2022 Free Software Foundation, Inc.
;;
;; Author: Philip Jackson <[email protected]>
;; Keywords: erc, irc, link, org
;;
;; This file is part of GNU Emacs.
;;
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs 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 General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This file implements links to an IRC session from within Org mode.
;; Org mode loads this module by default - if this is not what you want,
;; configure the variable `org-modules'.
;;
;; Please customize the variable `org-modules' to select
;; extensions you would like to use, and to deselect those which you don't
;; want.
;;
;; Please note that at the moment only ERC is supported. Other clients
;; shouldn't be difficult to add though.
;;
;; Then set `org-irc-link-to-logs' to non-nil if you would like a
;; file:/ type link to be created to the current line in the logs or
;; to t if you would like to create an irc:/ style link.
;;
;; Links within an org buffer might look like this:
;;
;; [[irc:/irc.libera.chat/#emacs/bob][chat with bob in #emacs on Libera.Chat]]
;; [[irc:/irc.libera.chat/#emacs][#emacs on Libera.Chat]]
;; [[irc:/irc.libera.chat/]]
;;
;; If, when the resulting link is visited, there is no connection to a
;; requested server then one will be created.
;;; Code:
(require 'org-macs)
(org-assert-version)
(require 'ol)
(declare-function erc-buffer-filter "erc" (predicate &optional proc))
(declare-function erc-channel-p "erc" (channel))
(declare-function erc-cmd-JOIN "erc" (channel &optional key))
(declare-function erc-current-logfile "erc-log" (&optional buffer))
(declare-function erc-default-target "erc" ())
(declare-function erc-get-server-nickname-list "erc" ())
(declare-function erc-logging-enabled "erc-log" (&optional buffer))
(declare-function erc-prompt "erc" ())
(declare-function erc-save-buffer-in-logs "erc-log" (&optional buffer))
(declare-function erc-server-buffer "erc" ())
(defvar org-irc-client 'erc
"The IRC client to act on.")
(defvar org-irc-link-to-logs nil
"Non-nil will store a link to the logs, nil will store an irc: style link.")
(defvar erc-default-port) ; dynamically scoped from erc.el
(defvar erc-session-port) ; dynamically scoped form erc-backend.el
(defvar erc-session-server) ; dynamically scoped form erc-backend.el
;; Generic functions/config (extend these for other clients)
(org-link-set-parameters "irc"
:follow #'org-irc-visit
:store #'org-irc-store-link
:export #'org-irc-export)
(defun org-irc-visit (link _)
"Parse LINK and dispatch to the correct function based on the client found."
(let ((link (org-irc-parse-link link)))
(cond
((eq org-irc-client 'erc)
(org-irc-visit-erc link))
(t
(error "ERC only known client")))))
(defun org-irc-parse-link (link)
"Parse an IRC LINK and return the attributes found.
Parse a LINK that looks like server:port/chan/user (port, chan
and user being optional) and return any of the port, channel or user
attributes that are found."
(let* ((parts (split-string link "/" t))
(len (length parts)))
(when (or (< len 1) (> len 3))
(error "Failed to parse link needed 1-3 parts, got %d" len))
(setcar parts (split-string (car parts) ":" t))
parts))
;;;###autoload
(defun org-irc-store-link ()
"Dispatch to the appropriate function to store a link to an IRC session."
(cond
((eq major-mode 'erc-mode)
(org-irc-erc-store-link))))
(defun org-irc-ellipsify-description (string &optional after)
"Remove unnecessary white space from STRING and add ellipses if necessary.
Strip starting and ending white space from STRING and replace any
chars that the value AFTER with `...'"
(let* ((after (number-to-string (or after 30)))
(replace-map (list (cons "^[ \t]*" "")
(cons "[ \t]*$" "")
(cons (concat "^\\(.\\{" after
"\\}\\).*") "\\1..."))))
(dolist (x replace-map string)
(when (string-match (car x) string)
(setq string (replace-match (cdr x) nil nil string))))))
;; ERC specific functions
(defun org-irc-erc-get-line-from-log (erc-line)
"Find the best line to link to from the ERC logs given ERC-LINE as a start.
If the user is on the ERC-prompt then search backward for the
first non-blank line, otherwise return the current line. The
result is a cons of the filename and search string."
(erc-save-buffer-in-logs)
(require 'erc-log)
(with-current-buffer (find-file-noselect (erc-current-logfile))
(goto-char (point-max))
(list
(abbreviate-file-name buffer-file-name)
;; can we get a '::' part?
(if (string= erc-line (erc-prompt))
(progn
(goto-char (line-beginning-position))
(when (search-backward-regexp "^[^ ]" nil t)
(buffer-substring-no-properties (line-beginning-position)
(line-end-position))))
(when (search-backward erc-line nil t)
(buffer-substring-no-properties (line-beginning-position)
(line-end-position)))))))
(defun org-irc-erc-store-link ()
"Store a link to the IRC log file or the session itself.
Depending on the variable `org-irc-link-to-logs' store either a
link to the log file for the current session or an irc: link to
the session itself."
(require 'erc-log)
(if org-irc-link-to-logs
(let* ((erc-line (buffer-substring-no-properties
(line-beginning-position) (line-end-position)))
(parsed-line (org-irc-erc-get-line-from-log erc-line)))
(if (erc-logging-enabled nil)
(progn
(org-link-store-props
:type "file"
:description (concat "'" (org-irc-ellipsify-description
(cadr parsed-line) 20)
"' from an IRC conversation")
:link (concat "file:" (car parsed-line) "::"
(cadr parsed-line)))
t)
(error "This ERC session is not being logged")))
(let* ((link-text (org-irc-get-erc-link))
(link (org-irc-parse-link link-text)))
(if link-text
(progn
(org-link-store-props
:type "irc"
:link (concat "irc:/" link-text)
:description (concat "irc session `" link-text "'")
:server (car (car link))
:port (or (string-to-number (cadr (pop link))) erc-default-port)
:nick (pop link))
t)
(error "Failed to create ('irc:/' style) ERC link")))))
(defun org-irc-get-erc-link ()
"Return an org compatible irc:/ link from an ERC buffer."
(let* ((session-port (if (numberp erc-session-port)
(number-to-string erc-session-port)
erc-session-port))
(link (concat erc-session-server ":" session-port)))
(concat link "/"
(if (and (erc-default-target)
(erc-channel-p (erc-default-target))
(car (get-text-property (point) 'erc-data)))
;; we can get a nick
(let ((nick (car (get-text-property (point) 'erc-data))))
(concat (erc-default-target) "/" nick))
(erc-default-target)))))
(defun org-irc-get-current-erc-port ()
"Return the current port as a number.
Return the current port number or, if none is set, return the ERC
default."
(cond
((stringp erc-session-port)
(string-to-number erc-session-port))
((numberp erc-session-port)
erc-session-port)
(t
erc-default-port)))
(defun org-irc-visit-erc (link)
"Visit an ERC buffer based on criteria found in LINK."
(require 'erc)
(require 'erc-log)
(let* ((server (car (car link)))
(port (let ((p (cadr (pop link))))
(if p (string-to-number p) erc-default-port)))
(server-buffer)
(buffer-list
(erc-buffer-filter
(lambda nil
(let ((tmp-server-buf (erc-server-buffer)))
(and tmp-server-buf
(with-current-buffer tmp-server-buf
(and
(eq (org-irc-get-current-erc-port) port)
(string= erc-session-server server)
(setq server-buffer tmp-server-buf)))))))))
(if buffer-list
(let ((chan-name (pop link)))
;; if we got a channel name then switch to it or join it
(if chan-name
(let ((chan-buf (catch 'found
(dolist (x buffer-list)
(if (string= (buffer-name x) chan-name)
(throw 'found x))))))
(if chan-buf
(progn
(pop-to-buffer-same-window chan-buf)
;; if we got a nick, and they're in the chan,
;; then start a chat with them
(let ((nick (pop link)))
(when nick
(if (member nick (erc-get-server-nickname-list))
(progn
(goto-char (point-max))
(insert (concat nick ": ")))
(error "%s not found in %s" nick chan-name)))))
(progn
(pop-to-buffer-same-window server-buffer)
(erc-cmd-JOIN chan-name))))
(pop-to-buffer-same-window server-buffer)))
;; no server match, make new connection
(erc-select :server server :port port))))
(defun org-irc-export (link description format)
"Export an IRC link.
See `org-link-parameters' for details about LINK, DESCRIPTION and
FORMAT."
(let ((desc (or description link)))
(pcase format
(`html (format "<a href=\"irc:%s\">%s</a>" link desc))
(`md (format "[%s](irc:%s)" desc link))
(_ nil))))
(provide 'ol-irc)
;; Local variables:
;; generated-autoload-file: "org-loaddefs.el"
;; End:
;;; ol-irc.el ends here