scheme interaction mode

[bpt/emacs.git] / lisp / battery.el

diff --git a/lisp/battery.el b/lisp/battery.el
index d4e4d8b..b493634 100644 (file)
--- a/lisp/battery.el
+++ b/lisp/battery.el
@@ -1,6 +1,6 @@
 ;;; battery.el --- display battery status information  -*- coding: utf-8 -*-
 
-;; Copyright (C) 1997-1998, 2000-2013 Free Software Foundation, Inc.
+;; Copyright (C) 1997-1998, 2000-2014 Free Software Foundation, Inc.
 
 ;; Author: Ralph Schleicher <rs@nunatak.allgaeu.org>
 ;; Keywords: hardware
@@ -201,19 +201,18 @@ seconds."
 
 (defun battery-update ()
   "Update battery status information in the mode line."
-  (let ((data (and battery-status-function (funcall battery-status-function))))
+  (let* ((data (and battery-status-function (funcall battery-status-function)))
+         (percentage (car (read-from-string (cdr (assq ?p data))))))
     (setq battery-mode-line-string
          (propertize (if (and battery-mode-line-format
-                              (<= (car (read-from-string (cdr (assq ?p data))))
-                                  battery-mode-line-limit))
-                         (battery-format
-                          battery-mode-line-format
-                          data)
+                              (numberp percentage)
+                               (<= percentage battery-mode-line-limit))
+                         (battery-format battery-mode-line-format data)
                        "")
                      'face
-                     (and (<= (car (read-from-string (cdr (assq ?p data))))
-                                  battery-load-critical)
-                          'error)
+                      (and (numberp percentage)
+                           (<= percentage battery-load-critical)
+                           'error)
                      'help-echo "Battery status information")))
   (force-mode-line-update))
 \f
@@ -458,12 +457,15 @@ The following %-sequences are provided:
          (and (re-search-forward "POWER_SUPPLY_STATUS=\\(.*\\)$" nil t)
               (member charging-state '("Unknown" "Full" nil))
               (setq charging-state (match-string 1)))
+         (goto-char (point-min))
          (when (re-search-forward
                  "POWER_SUPPLY_\\(CURRENT\\|POWER\\)_NOW=\\([0-9]*\\)$"
                  nil t)
            (setq rate (float (string-to-number (match-string 2)))))
+         (goto-char (point-min))
          (when (re-search-forward "POWER_SUPPLY_TEMP=\\([0-9]*\\)$" nil t)
            (setq temperature (match-string 1)))
+         (goto-char (point-min))
          (let (full-string now-string)
            ;; Sysfs may list either charge (mAh) or energy (mWh).
            ;; Keep track of both, and choose which to report later.
@@ -477,7 +479,8 @@ The following %-sequences are provided:
                                        (string-to-number full-string))
                         charge-now  (+ charge-now
                                        (string-to-number now-string))))
-                 ((and (re-search-forward
+                 ((and (progn (goto-char (point-min)) t)
+                       (re-search-forward
                         "POWER_SUPPLY_ENERGY_FULL=\\([0-9]*\\)$" nil t)
                        (setq full-string (match-string 1))
                        (re-search-forward
@@ -615,7 +618,7 @@ The following %-sequences are provided:
     (with-temp-buffer
       (ignore-errors (call-process "pmset" nil t nil "-g" "ps"))
       (goto-char (point-min))
-      (when (re-search-forward "Currentl?y drawing from '\\(AC\\|Battery\\) Power'" nil t)
+      (when (re-search-forward "\\(?:Currentl?y\\|Now\\) drawing from '\\(AC\\|Battery\\) Power'" nil t)
        (setq power-source (match-string 1))
        (when (re-search-forward "^ -InternalBattery-0[ \t]+" nil t)
          (when (looking-at "\\([0-9]\\{1,3\\}\\)%")