lisp/erc/erc-match.el

   1 ;;; erc-match.el --- Highlight messages matching certain regexps
   2
   3 ;; Copyright (C) 2002-2013 Free Software Foundation, Inc.
   4
   5 ;; Author: Andreas Fuchs <asf@void.at>
   6 ;; Maintainer: FSF
   7 ;; Keywords: comm, faces
   8 ;; URL: http://www.emacswiki.org/cgi-bin/wiki.pl?ErcMatch
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24
  25 ;;; Commentary:
  26
  27 ;; This file includes stuff to work with pattern matching in ERC. If
  28 ;; you were used to customizing erc-fools, erc-keywords, erc-pals,
  29 ;; erc-dangerous-hosts and the like, this file contains these
  30 ;; customizable variables.
  31
  32 ;; Usage:
  33 ;; Put (erc-match-mode 1) into your init file.
  34
  35 ;;; Code:
  36
  37 (require 'erc)
  38
  39 ;; Customization:
  40
  41 (defgroup erc-match nil
  42   "Keyword and Friend/Foe/... recognition.
  43 Group containing all things concerning pattern matching in ERC
  44 messages."
  45   :group 'erc)
  46
  47 ;;;###autoload (autoload 'erc-match-mode "erc-match")
  48 (define-erc-module match nil
  49   "This mode checks whether messages match certain patterns.  If so,
  50 they are hidden or highlighted.  This is controlled via the variables
  51 `erc-pals', `erc-fools', `erc-keywords', `erc-dangerous-hosts', and
  52 `erc-current-nick-highlight-type'.  For all these highlighting types,
  53 you can decide whether the entire message or only the sending nick is
  54 highlighted."
  55   ((add-hook 'erc-insert-modify-hook 'erc-match-message 'append))
  56   ((remove-hook 'erc-insert-modify-hook 'erc-match-message)))
  57
  58 ;; Remaining customizations
  59
  60 (defcustom erc-pals nil
  61   "List of pals on IRC."
  62   :group 'erc-match
  63   :type '(repeat regexp))
  64
  65 (defcustom erc-fools nil
  66   "List of fools on IRC."
  67   :group 'erc-match
  68   :type '(repeat regexp))
  69
  70 (defcustom erc-keywords nil
  71   "List of keywords to highlight in all incoming messages.
  72 Each entry in the list is either a regexp, or a cons cell with the
  73 regexp in the car and the face to use in the cdr.  If no face is
  74 specified, `erc-keyword-face' is used."
  75   :group 'erc-match
  76   :type '(repeat (choice regexp
  77                          (list regexp face))))
  78
  79 (defcustom erc-dangerous-hosts nil
  80   "List of regexps for hosts to highlight.
  81 Useful to mark nicks from dangerous hosts."
  82   :group 'erc-match
  83   :type '(repeat regexp))
  84
  85 (defcustom erc-current-nick-highlight-type 'keyword
  86   "Determines how to highlight text in which your current nickname appears
  87 \(does not apply to text sent by you\).
  88
  89 The following values are allowed:
  90
  91  nil              - do not highlight the message at all
  92  'keyword         - highlight all instances of current nickname in message
  93  'nick            - highlight the nick of the user who typed your nickname
  94  'nick-or-keyword - highlight the nick of the user who typed your nickname,
  95                     or all instances of the current nickname if there was
  96                     no sending user
  97  'all             - highlight the entire message where current nickname occurs
  98
  99 Any other value disables highlighting of current nickname altogether."
 100   :group 'erc-match
 101   :type '(choice (const nil)
 102                  (const nick)
 103                  (const keyword)
 104                  (const nick-or-keyword)
 105                  (const all)))
 106
 107 (defcustom erc-pal-highlight-type 'nick
 108   "Determines how to highlight messages by pals.
 109 See `erc-pals'.
 110
 111 The following values are allowed:
 112
 113     nil   - do not highlight the message at all
 114     'nick - highlight pal's nickname only
 115     'all  - highlight the entire message from pal
 116
 117 Any other value disables pal highlighting altogether."
 118   :group 'erc-match
 119   :type '(choice (const nil)
 120                  (const nick)
 121                  (const all)))
 122
 123 (defcustom erc-fool-highlight-type 'nick
 124   "Determines how to highlight messages by fools.
 125 See `erc-fools'.
 126
 127 The following values are allowed:
 128
 129     nil   - do not highlight the message at all
 130     'nick - highlight fool's nickname only
 131     'all  - highlight the entire message from fool
 132
 133 Any other value disables fool highlighting altogether."
 134   :group 'erc-match
 135   :type '(choice (const nil)
 136                  (const nick)
 137                  (const all)))
 138
 139 (defcustom erc-keyword-highlight-type 'keyword
 140   "Determines how to highlight messages containing keywords.
 141 See variable `erc-keywords'.
 142
 143 The following values are allowed:
 144
 145     'keyword - highlight keyword only
 146     'all     - highlight the entire message containing keyword
 147
 148 Any other value disables keyword highlighting altogether."
 149   :group 'erc-match
 150   :type '(choice (const nil)
 151                  (const keyword)
 152                  (const all)))
 153
 154 (defcustom erc-dangerous-host-highlight-type 'nick
 155   "Determines how to highlight messages by nicks from dangerous-hosts.
 156 See `erc-dangerous-hosts'.
 157
 158 The following values are allowed:
 159
 160     'nick - highlight nick from dangerous-host only
 161     'all  - highlight the entire message from dangerous-host
 162
 163 Any other value disables dangerous-host highlighting altogether."
 164   :group 'erc-match
 165   :type '(choice (const nil)
 166                  (const nick)
 167                  (const all)))
 168
 169
 170 (defcustom erc-log-matches-types-alist '((keyword . "ERC Keywords"))
 171   "Alist telling ERC where to log which match types.
 172 Valid match type keys are:
 173 - keyword
 174 - pal
 175 - dangerous-host
 176 - fool
 177 - current-nick
 178
 179 The other element of each cons pair in this list is the buffer name to
 180 use for the logged message."
 181   :group 'erc-match
 182   :type '(repeat (cons (choice :tag "Key"
 183                                (const keyword)
 184                                (const pal)
 185                                (const dangerous-host)
 186                                (const fool)
 187                                (const current-nick))
 188                        (string :tag "Buffer name"))))
 189
 190 (defcustom erc-log-matches-flag 'away
 191   "Flag specifying when matched message logging should happen.
 192 When nil, don't log any matched messages.
 193 When t, log messages.
 194 When 'away, log messages only when away."
 195   :group 'erc-match
 196   :type '(choice (const nil)
 197                  (const away)
 198                  (const t)))
 199
 200 (defcustom erc-log-match-format "%t<%n:%c> %m"
 201   "Format for matched Messages.
 202 This variable specifies how messages in the corresponding log buffers will
 203 be formatted. The various format specs are:
 204
 205 %t Timestamp (uses `erc-timestamp-format' if non-nil or \"[%Y-%m-%d %H:%M] \")
 206 %n Nickname of sender
 207 %u Nickname!user@host of sender
 208 %c Channel in which this was received
 209 %m Message"
 210   :group 'erc-match
 211   :type 'string)
 212
 213 (defcustom erc-beep-match-types '(current-nick)
 214   "Types of matches to beep for when a match occurs.
 215 The function `erc-beep-on-match' needs to be added to `erc-text-matched-hook'
 216 for beeping to work."
 217   :group 'erc-match
 218   :type '(choice (repeat :tag "Beep on match" (choice
 219                                                (const current-nick)
 220                                                (const keyword)
 221                                                (const pal)
 222                                                (const dangerous-host)
 223                                                (const fool)))
 224                  (const :tag "Don't beep" nil)))
 225
 226 (defcustom erc-text-matched-hook '(erc-log-matches)
 227   "Hook run when text matches a given match-type.
 228 Functions in this hook are passed as arguments:
 229 \(match-type nick!user@host message) where MATCH-TYPE is a symbol of:
 230 current-nick, keyword, pal, dangerous-host, fool"
 231   :options '(erc-log-matches erc-hide-fools erc-beep-on-match)
 232   :group 'erc-match
 233   :type 'hook)
 234
 235 (defcustom erc-match-exclude-server-buffer nil
 236   "If true, don't perform match on the server buffer; this is
 237 useful for excluding all the things like MOTDs from the server
 238 and other miscellaneous functions."
 239   :group 'erc-match
 240   :version "24.3"
 241   :type 'boolean)
 242
 243 ;; Internal variables:
 244
 245 ;; This is exactly the same as erc-button-syntax-table.  Should we
 246 ;; just put it in erc.el
 247 (defvar erc-match-syntax-table
 248   (let ((table (make-syntax-table)))
 249     (modify-syntax-entry ?\( "w" table)
 250     (modify-syntax-entry ?\) "w" table)
 251     (modify-syntax-entry ?\[ "w" table)
 252     (modify-syntax-entry ?\] "w" table)
 253     (modify-syntax-entry ?\{ "w" table)
 254     (modify-syntax-entry ?\} "w" table)
 255     (modify-syntax-entry ?` "w" table)
 256     (modify-syntax-entry ?' "w" table)
 257     (modify-syntax-entry ?^ "w" table)
 258     (modify-syntax-entry ?- "w" table)
 259     (modify-syntax-entry ?_ "w" table)
 260     (modify-syntax-entry ?| "w" table)
 261     (modify-syntax-entry ?\\ "w" table)
 262     table)
 263   "Syntax table used when highlighting messages.
 264 This syntax table should make all the valid nick characters word
 265 constituents.")
 266
 267 ;; Faces:
 268
 269 (defface erc-current-nick-face '((t :weight bold :foreground "DarkTurquoise"))
 270   "ERC face for occurrences of your current nickname."
 271   :group 'erc-faces)
 272
 273 (defface erc-dangerous-host-face '((t :foreground "red"))
 274   "ERC face for people on dangerous hosts.
 275 See `erc-dangerous-hosts'."
 276   :group 'erc-faces)
 277
 278 (defface erc-pal-face '((t :weight bold :foreground "Magenta"))
 279   "ERC face for your pals.
 280 See `erc-pals'."
 281   :group 'erc-faces)
 282
 283 (defface erc-fool-face '((t :foreground "dim gray"))
 284   "ERC face for fools on the channel.
 285 See `erc-fools'."
 286   :group 'erc-faces)
 287
 288 (defface erc-keyword-face '((t :weight bold :foreground "pale green"))
 289   "ERC face for your keywords.
 290 Note that this is the default face to use if
 291 `erc-keywords' does not specify another."
 292   :group 'erc-faces)
 293
 294 ;; Functions:
 295
 296 (defun erc-add-entry-to-list (list prompt &optional completions)
 297   "Add an entry interactively to a list.
 298 LIST must be passed as a symbol
 299 The query happens using PROMPT.
 300 Completion is performed on the optional alist COMPLETIONS."
 301   (let ((entry (completing-read
 302                 prompt
 303                 completions
 304                 (lambda (x)
 305                   (not (erc-member-ignore-case (car x) (symbol-value list)))))))
 306     (if (erc-member-ignore-case entry (symbol-value list))
 307         (error "\"%s\" is already on the list" entry)
 308       (set list (cons entry (symbol-value list))))))
 309
 310 (defun erc-remove-entry-from-list (list prompt)
 311   "Remove an entry interactively from a list.
 312 LIST must be passed as a symbol.
 313 The elements of LIST can be strings, or cons cells where the
 314 car is the string."
 315   (let* ((alist (mapcar (lambda (x)
 316                           (if (listp x)
 317                               x
 318                             (list x)))
 319                         (symbol-value list)))
 320          (entry (completing-read
 321                  prompt
 322                  alist
 323                  nil
 324                  t)))
 325     (if (erc-member-ignore-case entry (symbol-value list))
 326         ;; plain string
 327         (set list (delete entry (symbol-value list)))
 328       ;; cons cell
 329       (set list (delete (assoc entry (symbol-value list))
 330                         (symbol-value list))))))
 331
 332 ;;;###autoload
 333 (defun erc-add-pal ()
 334   "Add pal interactively to `erc-pals'."
 335   (interactive)
 336   (erc-add-entry-to-list 'erc-pals "Add pal: " (erc-get-server-nickname-alist)))
 337
 338 ;;;###autoload
 339 (defun erc-delete-pal ()
 340   "Delete pal interactively to `erc-pals'."
 341   (interactive)
 342   (erc-remove-entry-from-list 'erc-pals "Delete pal: "))
 343
 344 ;;;###autoload
 345 (defun erc-add-fool ()
 346   "Add fool interactively to `erc-fools'."
 347   (interactive)
 348   (erc-add-entry-to-list 'erc-fools "Add fool: "
 349                          (erc-get-server-nickname-alist)))
 350
 351 ;;;###autoload
 352 (defun erc-delete-fool ()
 353   "Delete fool interactively to `erc-fools'."
 354   (interactive)
 355   (erc-remove-entry-from-list 'erc-fools "Delete fool: "))
 356
 357 ;;;###autoload
 358 (defun erc-add-keyword ()
 359   "Add keyword interactively to `erc-keywords'."
 360   (interactive)
 361   (erc-add-entry-to-list 'erc-keywords "Add keyword: "))
 362
 363 ;;;###autoload
 364 (defun erc-delete-keyword ()
 365   "Delete keyword interactively to `erc-keywords'."
 366   (interactive)
 367   (erc-remove-entry-from-list 'erc-keywords "Delete keyword: "))
 368
 369 ;;;###autoload
 370 (defun erc-add-dangerous-host ()
 371   "Add dangerous-host interactively to `erc-dangerous-hosts'."
 372   (interactive)
 373   (erc-add-entry-to-list 'erc-dangerous-hosts "Add dangerous-host: "))
 374
 375 ;;;###autoload
 376 (defun erc-delete-dangerous-host ()
 377   "Delete dangerous-host interactively to `erc-dangerous-hosts'."
 378   (interactive)
 379   (erc-remove-entry-from-list 'erc-dangerous-hosts "Delete dangerous-host: "))
 380
 381 (defun erc-match-current-nick-p (nickuserhost msg)
 382   "Check whether the current nickname is in MSG.
 383 NICKUSERHOST will be ignored."
 384   (with-syntax-table erc-match-syntax-table
 385     (and msg
 386          (string-match (concat "\\b"
 387                                (regexp-quote (erc-current-nick))
 388                                "\\b")
 389                        msg))))
 390
 391 (defun erc-match-pal-p (nickuserhost msg)
 392   "Check whether NICKUSERHOST is in `erc-pals'.
 393 MSG will be ignored."
 394   (and nickuserhost
 395        (erc-list-match erc-pals nickuserhost)))
 396
 397 (defun erc-match-fool-p (nickuserhost msg)
 398   "Check whether NICKUSERHOST is in `erc-fools' or MSG is directed at a fool."
 399   (and msg nickuserhost
 400        (or (erc-list-match erc-fools nickuserhost)
 401            (erc-match-directed-at-fool-p msg))))
 402
 403 (defun erc-match-keyword-p (nickuserhost msg)
 404   "Check whether any keyword of `erc-keywords' matches for MSG.
 405 NICKUSERHOST will be ignored."
 406   (and msg
 407        (erc-list-match
 408         (mapcar (lambda (x)
 409                   (if (listp x)
 410                       (car x)
 411                     x))
 412                 erc-keywords)
 413         msg)))
 414
 415 (defun erc-match-dangerous-host-p (nickuserhost msg)
 416   "Check whether NICKUSERHOST is in `erc-dangerous-hosts'.
 417 MSG will be ignored."
 418   (and nickuserhost
 419        (erc-list-match erc-dangerous-hosts nickuserhost)))
 420
 421 (defun erc-match-directed-at-fool-p (msg)
 422   "Check whether MSG is directed at a fool.
 423 In order to do this, every entry in `erc-fools' will be used.
 424 In any of the following situations, MSG is directed at an entry FOOL:
 425
 426 - MSG starts with \"FOOL: \" or \"FOO, \"
 427 - MSG contains \", FOOL.\" (actually, \"\\s. FOOL\\s.\")"
 428   (let ((fools-beg (mapcar (lambda (entry)
 429                                  (concat "^" entry "[:,] "))
 430                            erc-fools))
 431         (fools-end (mapcar (lambda (entry)
 432                                  (concat "\\s. " entry "\\s."))
 433                                erc-fools)))
 434     (or (erc-list-match fools-beg msg)
 435         (erc-list-match fools-end msg))))
 436
 437 (defun erc-match-message ()
 438   "Mark certain keywords in a region.
 439 Use this defun with `erc-insert-modify-hook'."
 440   ;; This needs some refactoring.
 441   (goto-char (point-min))
 442   (let* ((to-match-nick-dep '("pal" "fool" "dangerous-host"))
 443          (to-match-nick-indep '("keyword" "current-nick"))
 444          (vector (erc-get-parsed-vector (point-min)))
 445          (nickuserhost (erc-get-parsed-vector-nick vector))
 446          (nickname (and nickuserhost
 447                         (nth 0 (erc-parse-user nickuserhost))))
 448          (old-pt (point))
 449          (nick-beg (and nickname
 450                         (re-search-forward "\\(\\* \\)?"(regexp-quote nickname)
 451                                            (point-max) t)
 452                         (match-beginning 0)))
 453          (nick-end (when nick-beg
 454                      (match-end 0)))
 455          (message (buffer-substring
 456                    (if (and nick-end
 457                             (<= (+ 2 nick-end) (point-max)))
 458                        (+ nick-end
 459                           ;; Message starts 2 characters after the nick except
 460                           ;; for CTCP ACTION messages.
 461                           (if (string= "* "
 462                                        (buffer-substring (- nick-beg 2)
 463                                                          nick-beg))
 464                               1
 465                             2))
 466                      (point-min))
 467                    (point-max))))
 468     (when (and vector
 469                (not (and erc-match-exclude-server-buffer
 470                          (erc-server-buffer-p))))
 471       (mapc
 472        (lambda (match-type)
 473          (goto-char (point-min))
 474          (let* ((match-prefix (concat "erc-" match-type))
 475                 (match-pred (intern (concat "erc-match-" match-type "-p")))
 476                 (match-htype (eval (intern (concat match-prefix
 477                                                    "-highlight-type"))))
 478                 (match-regex (if (string= match-type "current-nick")
 479                                  (regexp-quote (erc-current-nick))
 480                                (eval (intern (concat match-prefix "s")))))
 481                 (match-face (intern (concat match-prefix "-face"))))
 482            (when (funcall match-pred nickuserhost message)
 483              (cond
 484               ;; Highlight the nick of the message
 485               ((and (eq match-htype 'nick)
 486                     nick-end)
 487                (erc-put-text-property
 488                 nick-beg nick-end
 489                 'face match-face (current-buffer)))
 490               ;; Highlight the nick of the message, or the current
 491               ;; nick if there's no nick in the message (e.g. /NAMES
 492               ;; output)
 493               ((and (string= match-type "current-nick")
 494                     (eq match-htype 'nick-or-keyword))
 495                (if nick-end
 496                    (erc-put-text-property
 497                     nick-beg nick-end
 498                     'face match-face (current-buffer))
 499                  (goto-char (+ 2 (or nick-end
 500                                      (point-min))))
 501                  (while (re-search-forward match-regex nil t)
 502                    (erc-put-text-property (match-beginning 0) (match-end 0)
 503                                           'face match-face))))
 504               ;; Highlight the whole message
 505               ((eq match-htype 'all)
 506                (erc-put-text-property
 507                 (point-min) (point-max)
 508                 'face match-face (current-buffer)))
 509               ;; Highlight all occurrences of the word to be
 510               ;; highlighted.
 511               ((and (string= match-type "keyword")
 512                     (eq match-htype 'keyword))
 513                (mapc (lambda (elt)
 514                        (let ((regex elt)
 515                              (face match-face))
 516                          (when (consp regex)
 517                            (setq regex (car elt)
 518                                  face (cdr elt)))
 519                          (goto-char (+ 2 (or nick-end
 520                                              (point-min))))
 521                          (while (re-search-forward regex nil t)
 522                            (erc-put-text-property
 523                             (match-beginning 0) (match-end 0)
 524                             'face face))))
 525                      match-regex))
 526               ;; Highlight all occurrences of our nick.
 527               ((and (string= match-type "current-nick")
 528                     (eq match-htype 'keyword))
 529                (goto-char (+ 2 (or nick-end
 530                                    (point-min))))
 531                (while (re-search-forward match-regex nil t)
 532                  (erc-put-text-property (match-beginning 0) (match-end 0)
 533                                         'face match-face)))
 534               ;; Else twiddle your thumbs.
 535               (t nil))
 536              (run-hook-with-args
 537               'erc-text-matched-hook
 538               (intern match-type)
 539               (or nickuserhost
 540                   (concat "Server:" (erc-get-parsed-vector-type vector)))
 541               message))))
 542        (if nickuserhost
 543            (append to-match-nick-dep to-match-nick-indep)
 544          to-match-nick-indep)))))
 545
 546 (defun erc-log-matches (match-type nickuserhost message)
 547   "Log matches in a separate buffer, determined by MATCH-TYPE.
 548 The behavior of this function is controlled by the variables
 549 `erc-log-matches-types-alist' and `erc-log-matches-flag'.
 550 Specify the match types which should be logged in the former,
 551 and deactivate/activate match logging in the latter.
 552 See `erc-log-match-format'."
 553   (let  ((match-buffer-name (cdr (assq match-type
 554                                        erc-log-matches-types-alist)))
 555          (nick (nth 0 (erc-parse-user nickuserhost))))
 556     (when (and
 557            (or (eq erc-log-matches-flag t)
 558                (and (eq erc-log-matches-flag 'away)
 559                     (erc-away-time)))
 560            match-buffer-name)
 561       (let ((line (format-spec erc-log-match-format
 562                    (format-spec-make
 563                     ?n nick
 564                     ?t (format-time-string
 565                         (or (and (boundp 'erc-timestamp-format)
 566                                  erc-timestamp-format)
 567                             "[%Y-%m-%d %H:%M] "))
 568                     ?c (or (erc-default-target) "")
 569                     ?m message
 570                     ?u nickuserhost))))
 571         (with-current-buffer (erc-log-matches-make-buffer match-buffer-name)
 572           (let ((inhibit-read-only t))
 573             (goto-char (point-max))
 574             (insert line)))))))
 575
 576 (defun erc-log-matches-make-buffer (name)
 577   "Create or get a log-matches buffer named NAME and return it."
 578   (let* ((buffer-already (get-buffer name))
 579          (buffer (or buffer-already
 580                      (get-buffer-create name))))
 581     (with-current-buffer buffer
 582       (unless buffer-already
 583         (insert " == Type \"q\" to dismiss messages ==\n")
 584         (erc-view-mode-enter nil (lambda (buffer)
 585                                    (when (y-or-n-p "Discard messages? ")
 586                                      (kill-buffer buffer)))))
 587       buffer)))
 588
 589 (defun erc-log-matches-come-back (proc parsed)
 590   "Display a notice that messages were logged while away."
 591   (when (and (erc-away-time)
 592              (eq erc-log-matches-flag 'away))
 593     (mapc
 594      (lambda (match-type)
 595        (let ((buffer (get-buffer (cdr match-type)))
 596              (buffer-name (cdr match-type)))
 597          (when buffer
 598            (let* ((last-msg-time (erc-emacs-time-to-erc-time
 599                                   (with-current-buffer buffer
 600                                     (get-text-property (1- (point-max))
 601                                                        'timestamp))))
 602                   (away-time (erc-emacs-time-to-erc-time (erc-away-time))))
 603              (when (and away-time last-msg-time
 604                         (erc-time-gt last-msg-time away-time))
 605                (erc-display-message
 606                 nil 'notice 'active
 607                 (format "You have logged messages waiting in \"%s\"."
 608                         buffer-name))
 609                (erc-display-message
 610                 nil 'notice 'active
 611                 (format "Type \"C-c C-k %s RET\" to view them."
 612                         buffer-name)))))))
 613      erc-log-matches-types-alist))
 614   nil)
 615
 616 ; This handler must be run _before_ erc-process-away is.
 617 (add-hook 'erc-server-305-functions 'erc-log-matches-come-back nil)
 618
 619 (defun erc-go-to-log-matches-buffer ()
 620   "Interactively open an erc-log-matches buffer."
 621   (interactive)
 622   (let ((buffer-name (completing-read "Switch to ERC Log buffer: "
 623                                       (mapcar (lambda (x)
 624                                                 (cons (cdr x) t))
 625                                               erc-log-matches-types-alist)
 626                                       (lambda (buffer-cons)
 627                                         (get-buffer (car buffer-cons))))))
 628     (switch-to-buffer buffer-name)))
 629
 630 (define-key erc-mode-map "\C-c\C-k" 'erc-go-to-log-matches-buffer)
 631
 632 (defun erc-hide-fools (match-type nickuserhost message)
 633  "Hide foolish comments.
 634 This function should be called from `erc-text-matched-hook'."
 635  (when (eq match-type 'fool)
 636    (erc-put-text-properties (point-min) (point-max)
 637                             '(invisible intangible)
 638                             (current-buffer))))
 639
 640 (defun erc-beep-on-match (match-type nickuserhost message)
 641   "Beep when text matches.
 642 This function is meant to be called from `erc-text-matched-hook'."
 643   (when (member match-type erc-beep-match-types)
 644     (beep)))
 645
 646 (provide 'erc-match)
 647
 648 ;;; erc-match.el ends here
 649 ;;
 650 ;; Local Variables:
 651 ;; indent-tabs-mode: t
 652 ;; tab-width: 8
 653 ;; End: