X-Git-Url: https://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Friece-debug.el;h=cddd944d93e8aa3b8a8f3903c9903f922ef51521;hb=3ee8a4af3c8254994a95ffac8926af4e7b32f8bd;hp=9209bd961ccb7ea40e1312fb4749e79fa3e79ac5;hpb=4685b52a0b4a71db884f55e6099c31f30b445f21;p=riece

diff --git a/lisp/riece-debug.el b/lisp/riece-debug.el
index 9209bd9..cddd944 100644
--- a/lisp/riece-debug.el
+++ b/lisp/riece-debug.el
@@ -25,14 +25,33 @@
 ;;; Code:
 
 (require 'riece-globals)
+(require 'riece-options)
+
+(defun riece-debug-1 (message detail)
+  (message "riece-debug: %s" message)
+  (save-excursion
+    (set-buffer riece-debug-buffer)
+    (goto-char (point-max))
+    (let ((time (format-time-string "%Y-%m-%d:%H:%M:%S")))
+      (if detail
+	  (insert "*** " time ": " message "\n" detail "\n")
+	(insert "*** " time ": " message "\n")))))
+
+(defun riece-debug (message &optional detail)
+  "Print a one-line debug MESSAGE at the bottom of the frame.
+If the optional 2nd argument DETAIL is specified, it is stored into
+`riece-debug-buffer'."
+  (ignore (riece-debug-1 message detail)))
 
 (defun riece-debug-reset-standard-output ()
+  "Reset `riece-temp-buffer' to be used as `standard-output'."
   (save-excursion
     (set-buffer riece-temp-buffer)
     (buffer-disable-undo)
     (erase-buffer)))
 
 (defmacro riece-debug-with-backtrace (&rest body)
+  "Execute BODY and send a backtrace to `riece-temp-buffer'."
   `(unwind-protect
        (progn ,@body)
      (riece-debug-reset-standard-output)
@@ -43,6 +62,10 @@
 (put 'riece-debug-with-backtrace 'edebug-form-spec '(form body))
 
 (defmacro riece-ignore-errors (location &rest body)
+  "Execute BODY; if an error occurs, return nil.
+Otherwise, return result of last FORM.
+If `riece-debug' is non-nil and an error occurred, it sends a
+backtrace to standard-output."
   `(condition-case error
        (if riece-debug
 	   (riece-debug-with-backtrace ,@body)
@@ -51,14 +74,24 @@
       (if riece-debug
 	  (save-excursion
 	    (set-buffer riece-temp-buffer)
+	    (goto-char (point-min))
 	    (if (re-search-forward "^  signal(" nil t)
 		(delete-region (point-min) (match-beginning 0)))
-	    (message "Error in `%s': %S\n%s" ,location error (buffer-string))))
+	    (riece-debug (format "Error in `%s': %S" ,location error)
+			 (buffer-string))))
       nil)))
 
 (put 'riece-ignore-errors 'lisp-indent-function 1)
 (put 'riece-ignore-errors 'edebug-form-spec '(form body))
 
+(defun riece-funcall-ignore-errors (location function &rest args)
+  "Call FUNCTION with ARGS; if an error occurs, return nil.
+Otherwise, return result of the function.
+If `riece-debug' is non-nil and an error occurred, it sends a
+backtrace to standard-output."
+  (riece-ignore-errors location
+    (apply function args)))
+
 (provide 'riece-debug)
 
 ;;; riece-debug.el ends here