lisp/emacs-lisp/warnings.el: Tiny fixes.

* emacs-lisp/warnings.el (warning-level-aliases): Reflow docstring.
  (warning-series): Doc fix.
  (display-warning): Don't try to create the buffer if we just found it.

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 501b4e8babcf949eeaf5657a98b6dbbd2f63fd11..cf120f8df8e1de1ede566292f22b9fa9b31758d7 100644 (file)
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,9 @@
+2011-05-05  Juanma Barranquero  <lekktu@gmail.com>
+
+       * emacs-lisp/warnings.el (warning-level-aliases): Reflow docstring.
+       (warning-series): Doc fix.
+       (display-warning): Don't try to create the buffer if we just found it.
+
 2011-05-04  Chong Yidong  <cyd@stupidchicken.com>
 
        * emacs-lisp/autoload.el (generated-autoload-file): Set to nil.

diff --git a/lisp/emacs-lisp/warnings.el b/lisp/emacs-lisp/warnings.el
index 1fb8ac0c2b6bcea0434198842cbaf7bfe39aaf71..7f3657bbbe638635f47eedfb2eef149c99a71e51 100644 (file)
--- a/lisp/emacs-lisp/warnings.el
+++ b/lisp/emacs-lisp/warnings.el
@@ -64,8 +64,8 @@ Level :debug is ignored by default (see `warning-minimum-level').")
     (critical . :emergency)
     (alarm . :emergency))
   "Alist of aliases for severity levels for `display-warning'.
-Each element looks like (ALIAS . LEVEL) and defines
-ALIAS as equivalent to LEVEL.  LEVEL must be defined in `warning-levels';
+Each element looks like (ALIAS . LEVEL) and defines ALIAS as
+equivalent to LEVEL.  LEVEL must be defined in `warning-levels';
 it may not itself be an alias.")
 \f
 (defcustom warning-minimum-level :warning
@@ -141,7 +141,7 @@ the beginning of the warning.")
 A marker indicates a position in the warnings buffer
 which is the start of the current series; it means that
 additional warnings in the same buffer should not move point.
-t means the next warning begins a series (and stores a marker here).
+If t, the next warning begins a series (and stores a marker here).
 A symbol with a function definition is like t, except
 also call that function before the next warning.")
 (put 'warning-series 'risky-local-variable t)
@@ -235,7 +235,7 @@ See also `warning-series', `warning-prefix-function' and
       (warning-suppress-p type warning-suppress-log-types)
       (let* ((typename (if (consp type) (car type) type))
              (old (get-buffer buffer-name))
-            (buffer (get-buffer-create buffer-name))
+            (buffer (or old (get-buffer-create buffer-name)))
             (level-info (assq level warning-levels))
             start end)
        (with-current-buffer buffer
@@ -251,60 +251,60 @@ See also `warning-series', `warning-prefix-function' and
                    (unless (eq warning-series t)
                      (funcall warning-series)))))
           (let ((inhibit-read-only t))
-         (unless (bolp)
-           (newline))
-         (setq start (point))
-         (if warning-prefix-function
-             (setq level-info (funcall warning-prefix-function
-                                       level level-info)))
-         (insert (format (nth 1 level-info)
-                          (format warning-type-format typename))
-                 message)
-         (newline)
-         (when (and warning-fill-prefix (not (string-match "\n" message)))
-           (let ((fill-prefix warning-fill-prefix)
-                 (fill-column 78))
-             (fill-region start (point))))
-            (setq end (point)))
+           (unless (bolp)
+             (newline))
+           (setq start (point))
+           (if warning-prefix-function
+               (setq level-info (funcall warning-prefix-function
+                                         level level-info)))
+           (insert (format (nth 1 level-info)
+                           (format warning-type-format typename))
+                   message)
+           (newline)
+           (when (and warning-fill-prefix (not (string-match "\n" message)))
+             (let ((fill-prefix warning-fill-prefix)
+                   (fill-column 78))
+               (fill-region start (point))))
+           (setq end (point)))
          (when (and (markerp warning-series)
                     (eq (marker-buffer warning-series) buffer))
            (goto-char warning-series)))
        (if (nth 2 level-info)
            (funcall (nth 2 level-info)))
-     (cond (noninteractive
-           ;; Noninteractively, take the text we inserted
-           ;; in the warnings buffer and print it.
-           ;; Do this unconditionally, since there is no way
-           ;; to view logged messages unless we output them.
-           (with-current-buffer buffer
-             (save-excursion
-               ;; Don't include the final newline in the arg
-               ;; to `message', because it adds a newline.
-               (goto-char end)
-               (if (bolp)
-                   (forward-char -1))
-               (message "%s" (buffer-substring start (point))))))
-          ((and (daemonp) (null after-init-time))
-           ;; Warnings assigned during daemon initialization go into
-           ;; the messages buffer.
-           (message "%s"
-                    (with-current-buffer buffer
-                      (save-excursion
-                        (goto-char end)
-                        (if (bolp)
-                            (forward-char -1))
-                        (buffer-substring start (point))))))
-          (t
-           ;; Interactively, decide whether the warning merits
-           ;; immediate display.
-           (or (< (warning-numeric-level level)
-                  (warning-numeric-level warning-minimum-level))
-               (warning-suppress-p type warning-suppress-types)
-               (let ((window (display-buffer buffer)))
-                 (when (and (markerp warning-series)
-                            (eq (marker-buffer warning-series) buffer))
-                   (set-window-start window warning-series))
-                 (sit-for 0))))))))
+       (cond (noninteractive
+              ;; Noninteractively, take the text we inserted
+              ;; in the warnings buffer and print it.
+              ;; Do this unconditionally, since there is no way
+              ;; to view logged messages unless we output them.
+              (with-current-buffer buffer
+                (save-excursion
+                  ;; Don't include the final newline in the arg
+                  ;; to `message', because it adds a newline.
+                  (goto-char end)
+                  (if (bolp)
+                      (forward-char -1))
+                  (message "%s" (buffer-substring start (point))))))
+             ((and (daemonp) (null after-init-time))
+              ;; Warnings assigned during daemon initialization go into
+              ;; the messages buffer.
+              (message "%s"
+                       (with-current-buffer buffer
+                         (save-excursion
+                           (goto-char end)
+                           (if (bolp)
+                               (forward-char -1))
+                           (buffer-substring start (point))))))
+             (t
+              ;; Interactively, decide whether the warning merits
+              ;; immediate display.
+              (or (< (warning-numeric-level level)
+                     (warning-numeric-level warning-minimum-level))
+                  (warning-suppress-p type warning-suppress-types)
+                  (let ((window (display-buffer buffer)))
+                    (when (and (markerp warning-series)
+                               (eq (marker-buffer warning-series) buffer))
+                      (set-window-start window warning-series))
+                    (sit-for 0))))))))
 \f
 ;;;###autoload
 (defun lwarn (type level message &rest args)