X-Git-Url: http://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fgnus-util.el;h=3f66b45aaab29615740f986015581bc3f84dd881;hb=25ec0bdd5df677f42d9287d44fb917f3b730b522;hp=50292f4ff7697b4d841d210c640a1dec73f888d0;hpb=372fc7ebdcfac14160cb90dd35949761e0783657;p=gnus diff --git a/lisp/gnus-util.el b/lisp/gnus-util.el index 50292f4ff..3f66b45aa 100644 --- a/lisp/gnus-util.el +++ b/lisp/gnus-util.el @@ -1,7 +1,6 @@ ;;; gnus-util.el --- utility functions for Gnus -;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, -;; 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. +;; Copyright (C) 1996-2011 Free Software Foundation, Inc. ;; Author: Lars Magne Ingebrigtsen ;; Keywords: news @@ -39,6 +38,8 @@ (eval-when-compile (require 'cl)) +(require 'time-date) + (defcustom gnus-completing-read-function 'gnus-emacs-completing-read "Function use to do completing read." :version "24.1" @@ -332,10 +333,11 @@ Symbols are also allowed; their print names are used instead." (and (= (car fdate) (car date)) (> (nth 1 fdate) (nth 1 date)))))) +;; Every version of Emacs Gnus supports has built-in float-time. +;; The featurep test silences an irritating compiler warning. (eval-and-compile (if (or (featurep 'emacs) - (and (fboundp 'float-time) - (subrp (symbol-function 'float-time)))) + (fboundp 'float-time)) (defalias 'gnus-float-time 'float-time) (defun gnus-float-time (&optional time) "Convert time value TIME to a floating point number. @@ -475,51 +477,6 @@ Cache the result as a text property stored in DATE." (put-text-property 0 1 'gnus-time time d) time))))) -(defvar gnus-user-date-format-alist - '(((gnus-seconds-today) . "%k:%M") - (604800 . "%a %k:%M") ;;that's one week - ((gnus-seconds-month) . "%a %d") - ((gnus-seconds-year) . "%b %d") - (t . "%b %d '%y")) ;;this one is used when no - ;;other does match - "Specifies date format depending on age of article. -This is an alist of items (AGE . FORMAT). AGE can be a number (of -seconds) or a Lisp expression evaluating to a number. When the age of -the article is less than this number, then use `format-time-string' -with the corresponding FORMAT for displaying the date of the article. -If AGE is not a number or a Lisp expression evaluating to a -non-number, then the corresponding FORMAT is used as a default value. - -Note that the list is processed from the beginning, so it should be -sorted by ascending AGE. Also note that items following the first -non-number AGE will be ignored. - -You can use the functions `gnus-seconds-today', `gnus-seconds-month' -and `gnus-seconds-year' in the AGE spec. They return the number of -seconds passed since the start of today, of this month, of this year, -respectively.") - -(defun gnus-user-date (messy-date) - "Format the messy-date according to gnus-user-date-format-alist. -Returns \" ? \" if there's bad input or if another error occurs. -Input should look like this: \"Sun, 14 Oct 2001 13:34:39 +0200\"." - (condition-case () - (let* ((messy-date (gnus-float-time (gnus-date-get-time messy-date))) - (now (gnus-float-time)) - ;;If we don't find something suitable we'll use this one - (my-format "%b %d '%y")) - (let* ((difference (- now messy-date)) - (templist gnus-user-date-format-alist) - (top (eval (caar templist)))) - (while (if (numberp top) (< top difference) (not top)) - (progn - (setq templist (cdr templist)) - (setq top (eval (caar templist))))) - (if (stringp (cdr (car templist))) - (setq my-format (cdr (car templist))))) - (format-time-string (eval my-format) (seconds-to-time messy-date))) - (error " ? "))) - (defun gnus-dd-mmm (messy-date) "Return a string like DD-MMM from a big messy string." (condition-case () @@ -715,11 +672,9 @@ If N, return the Nth ancestor instead." (when (string-match "\\(<[^<]+>\\)[ \t]*\\'" references) (match-string 1 references)))))) -(defun gnus-buffer-live-p (buffer) +(defsubst gnus-buffer-live-p (buffer) "Say whether BUFFER is alive or not." - (and buffer - (get-buffer buffer) - (buffer-name (get-buffer buffer)))) + (and buffer (buffer-live-p (get-buffer buffer)))) (defun gnus-horizontal-recenter () "Recenter the current buffer horizontally." @@ -914,6 +869,15 @@ Bind `print-quoted' and `print-readably' to t, and `print-length' and (when (file-exists-p file) (delete-file file))) +(defun gnus-delete-duplicates (list) + "Remove duplicate entries from LIST." + (let ((result nil)) + (while list + (unless (member (car list) result) + (push (car list) result)) + (pop list)) + (nreverse result))) + (defun gnus-delete-directory (directory) "Delete files in DIRECTORY. Subdirectories remain. If there's no subdirectory, delete DIRECTORY as well." @@ -1983,16 +1947,21 @@ empty directories from OLD-PATH." "Rescale IMAGE to SIZE if possible. SIZE is in format (WIDTH . HEIGHT). Return a new image. Sizes are in pixels." - (when (fboundp 'imagemagick-types) + (if (or (not (fboundp 'imagemagick-types)) + (not (get-buffer-window (current-buffer)))) + image (let ((new-width (car size)) (new-height (cdr size))) - (unless (= (cdr (image-size image t)) new-height) - (setcdr image (plist-put (cdr image) :type 'imagemagick)) - (setcdr image (plist-put (cdr image) :height new-height))) - (unless (= (car (image-size image t)) new-width) - (setcdr image (plist-put (cdr image) :type 'imagemagick)) - (setcdr image (plist-put (cdr image) :width new-width))))) - image) + (when (> (cdr (image-size image t)) new-height) + (setq image (or (create-image (plist-get (cdr image) :data) 'imagemagick t + :height new-height) + image))) + (when (> (car (image-size image t)) new-width) + (setq image (or + (create-image (plist-get (cdr image) :data) 'imagemagick t + :width new-width) + image))) + image))) (defun gnus-list-memq-of-list (elements list) "Return non-nil if any of the members of ELEMENTS are in LIST."