[Emacs-diffs] Changes to emacs/lisp/erc/erc-log.el,v

[Michael W. Olson]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Michael W. Olson <mwolson>      07/09/19 03:29:03

Index: lisp/erc/erc-log.el
===================================================================
RCS file: /sources/emacs/emacs/lisp/erc/erc-log.el,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -b -r1.11 -r1.12
--- lisp/erc/erc-log.el 8 Sep 2007 03:07:09 -0000       1.11
+++ lisp/erc/erc-log.el 19 Sep 2007 03:29:02 -0000      1.12
@@ -205,6 +205,16 @@
 `emacs-mule', or `iso-2022-7bit'."
   :group 'erc-log)
 
+(defcustom erc-log-filter-function nil
+  "*If non-nil, pass text through the given function before writing it to
+a log file.
+
+The function should take one argument, which is the text to filter."
+  :group 'erc-log
+  :type '(choice (function "Function")
+                (const :tag "No filtering" nil)))
+
+
 ;;;###autoload (autoload 'erc-log-mode "erc-log" nil t)
 (define-erc-module log nil
   "Automatically logs things you receive on IRC into files.
@@ -405,17 +415,25 @@
   (or buffer (setq buffer (current-buffer)))
   (when (erc-logging-enabled buffer)
     (let ((file (erc-current-logfile buffer))
-         (coding-system-for-write erc-log-file-coding-system))
+         (coding-system erc-log-file-coding-system))
       (save-excursion
        (with-current-buffer buffer
          (save-restriction
            (widen)
-           ;; early on in the initalisation, don't try and write the log out
+           ;; early on in the initialization, don't try and write the log out
            (when (and (markerp erc-last-saved-position)
                       (> erc-insert-marker (1+ erc-last-saved-position)))
-             (write-region (1+ (marker-position erc-last-saved-position))
-                           (marker-position erc-insert-marker)
-                           file t 'nomessage)
+             (let ((start (1+ (marker-position erc-last-saved-position)))
+                   (end (marker-position erc-insert-marker)))
+               (if (functionp erc-log-filter-function)
+                   (let ((text (buffer-substring start end)))
+                     (with-temp-buffer
+                       (insert (funcall erc-log-filter-function text))
+                       (let ((coding-system-for-write coding-system))
+                         (write-region (point-min) (point-max)
+                                       file t 'nomessage))))
+                 (let ((coding-system-for-write coding-system))
+                   (write-region start end file t 'nomessage))))
              (if (and erc-truncate-buffer-on-save (interactive-p))
                  (progn
                    (let ((inhibit-read-only t)) (erase-buffer))