;;; gnus-spec.el --- format spec functions for Gnus
-;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+;; Copyright (C) 1996-2014 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; Keywords: news
;;; Code:
-;; For Emacs < 22.2.
+;; For Emacs <22.2 and XEmacs.
(eval-and-compile
(unless (fboundp 'declare-function) (defmacro declare-function (&rest r))))
(eval-when-compile (require 'cl))
(defcustom gnus-make-format-preserve-properties (featurep 'xemacs)
"*If non-nil, use a replacement `format' function which preserves
-text properties. This is only needed on XEmacs, as FSF Emacs does this anyway."
+text properties. This is only needed on XEmacs, as Emacs does this anyway."
:version "22.1"
:group 'gnus-format
:type 'boolean)
(defvar gnus-group-indentation "")
;; Format specs. The chunks below are the machine-generated forms
-;; that are to be evaled as the result of the default format strings.
+;; that are to be evalled as the result of the default format strings.
;; We write them in here to get them byte-compiled. That way the
;; default actions will be quite fast, while still retaining the full
;; flexibility of the user-defined format specs.
(defvar gnus-tmp-unread-and-unselected)
(defvar gnus-tmp-news-method)
(defvar gnus-tmp-news-server)
-(defvar gnus-tmp-article-number)
(defvar gnus-mouse-face)
(defvar gnus-mouse-face-prop)
(defvar gnus-tmp-header)
(declare-function gnus-summary-from-or-to-or-newsgroups "gnus-sum"
(header gnus-tmp-from))
-(defun gnus-summary-line-format-spec ()
- (insert gnus-tmp-unread gnus-tmp-replied
- gnus-tmp-score-char gnus-tmp-indentation)
- (gnus-put-text-property
- (point)
- (progn
- (insert
- (format "%c%4s: %-23s%c" gnus-tmp-opening-bracket gnus-tmp-lines
- (let ((val
- (inline
- (gnus-summary-from-or-to-or-newsgroups
- gnus-tmp-header gnus-tmp-from))))
- (if (> (length val) 23)
- (substring val 0 23)
- val))
- gnus-tmp-closing-bracket))
- (point))
- gnus-mouse-face-prop gnus-mouse-face)
- (insert " " gnus-tmp-subject-or-nil "\n"))
-
-(defvar gnus-summary-line-format-spec
- (gnus-byte-code 'gnus-summary-line-format-spec))
-
-(defun gnus-summary-dummy-line-format-spec ()
- (insert "* ")
- (gnus-put-text-property
- (point)
- (progn
- (insert ": :")
- (point))
- gnus-mouse-face-prop gnus-mouse-face)
- (insert " " gnus-tmp-subject "\n"))
-
-(defvar gnus-summary-dummy-line-format-spec
- (gnus-byte-code 'gnus-summary-dummy-line-format-spec))
-
-(defun gnus-group-line-format-spec ()
- (insert gnus-tmp-marked-mark gnus-tmp-subscribed
- gnus-tmp-process-marked
- gnus-group-indentation
- (format "%5s: " gnus-tmp-number-of-unread))
- (gnus-put-text-property
- (point)
- (progn
- (insert gnus-tmp-group "\n")
- (1- (point)))
- gnus-mouse-face-prop gnus-mouse-face))
-(defvar gnus-group-line-format-spec
- (gnus-byte-code 'gnus-group-line-format-spec))
+(defmacro gnus-lrm-string-p (string)
+ (if (fboundp 'bidi-string-mark-left-to-right)
+ ;; LRM, RLM, PDF characters as integers to avoid breaking Emacs
+ ;; 23.
+ `(memq (aref ,string (1- (length ,string))) '(8206 8207 8236))
+ nil))
+
+(defvar gnus-lrm-string (if (ignore-errors (string 8206))
+ (propertize (string 8206) 'invisible t)
+ ""))
+
+(defvar gnus-summary-line-format-spec nil)
+(defvar gnus-summary-dummy-line-format-spec nil)
+(defvar gnus-group-line-format-spec nil)
(defvar gnus-format-specs
`((version . ,emacs-version)
- (gnus-version . ,(gnus-continuum-version))
- (group "%M\%S\%p\%P\%5y: %(%g%)\n" ,gnus-group-line-format-spec)
- (summary-dummy "* %(: :%) %S\n"
- ,gnus-summary-dummy-line-format-spec)
- (summary "%U%R%z%I%(%[%4L: %-23,23f%]%) %s\n"
- ,gnus-summary-line-format-spec))
+ (gnus-version . ,(gnus-continuum-version)))
"Alist of format specs.")
(defvar gnus-default-format-specs gnus-format-specs)
(not (equal emacs-version
(cdr (assq 'version gnus-format-specs)))))
(setq gnus-format-specs nil))
- ;; Flush the group format spec cache if there's the grouplens stuff
- ;; or it doesn't support decoded group names.
- (when (memq 'group types)
- (let* ((spec (assq 'group gnus-format-specs))
- (sspec (gnus-prin1-to-string (nth 2 spec))))
- (when (or (string-match " gnus-tmp-grouplens[ )]" sspec)
- (not (string-match " gnus-tmp-decoded-group[ )]" sspec)))
- (setq gnus-format-specs (delq spec gnus-format-specs)))))
-
;; Go through all the formats and see whether they need updating.
(let (new-format entry type val updated)
(while (setq type (pop types))
(push (cons 'version emacs-version) gnus-format-specs))
updated))
-(defvar gnus-mouse-face-0 'highlight)
-(defvar gnus-mouse-face-1 'highlight)
-(defvar gnus-mouse-face-2 'highlight)
-(defvar gnus-mouse-face-3 'highlight)
-(defvar gnus-mouse-face-4 'highlight)
+(defcustom gnus-mouse-face-0 'highlight
+ "The \"%(hello%)\" face."
+ :group 'gnus-format
+ :type 'face)
+
+(defcustom gnus-mouse-face-1 'highlight
+ "The \"%1(hello%)\" face."
+ :group 'gnus-format
+ :type 'face)
+
+(defcustom gnus-mouse-face-2 'highlight
+ "The \"%2(hello%)\" face."
+ :group 'gnus-format
+ :type 'face)
+
+(defcustom gnus-mouse-face-3 'highlight
+ "The \"%3(hello%)\" face."
+ :group 'gnus-format
+ :type 'face)
+
+(defcustom gnus-mouse-face-4 'highlight
+ "The \"%4(hello%)\" face."
+ :group 'gnus-format
+ :type 'face)
(defun gnus-mouse-face-function (form type)
`(gnus-put-text-property
'gnus-mouse-face
`(quote ,(symbol-value (intern (format "gnus-mouse-face-%d" type)))))))
-(defvar gnus-face-0 'bold)
-(defvar gnus-face-1 'italic)
-(defvar gnus-face-2 'bold-italic)
-(defvar gnus-face-3 'bold)
-(defvar gnus-face-4 'bold)
+(defcustom gnus-face-0 'bold
+ "The \"%{hello%}\" face."
+ :group 'gnus-format
+ :type 'face)
+
+(defcustom gnus-face-1 'italic
+ "The \"%1{hello%}\" face."
+ :group 'gnus-format
+ :type 'face)
+
+(defcustom gnus-face-2 'bold-italic
+ "The \"%2{hello%}\" face."
+ :group 'gnus-format
+ :type 'face)
+
+(defcustom gnus-face-3 'bold
+ "The \"%3{hello%}\" face."
+ :group 'gnus-format
+ :type 'face)
+
+(defcustom gnus-face-4 'bold
+ "The \"%4{hello%}\" face."
+ :group 'gnus-format
+ :type 'face)
(defun gnus-face-face-function (form type)
`(gnus-add-text-properties
(point) (progn ,@form (point))
- '(gnus-face t face ,(symbol-value (intern (format "gnus-face-%d" type))))))
+ (cons 'face
+ (cons
+ ;; Delay consing the value of the `face' property until
+ ;; `gnus-add-text-properties' runs, since it will be modified
+ ;; by `gnus-put-text-property-excluding-characters-with-faces'.
+ (list ',(symbol-value (intern (format "gnus-face-%d" type))) 'default)
+ ;; Redundant now, but still convenient.
+ '(gnus-face t)))))
(defun gnus-balloon-face-function (form type)
`(gnus-put-text-property
`(if (> (,length-fun ,el) ,max)
,(if (< max-width 0)
`(,substring-fun ,el (- (,length-fun ,el) ,max))
- `(,substring-fun ,el 0 ,max))
+ `(if (gnus-lrm-string-p ,el)
+ (concat (,substring-fun ,el 0 ,max) ,gnus-lrm-string)
+ (,substring-fun ,el 0 ,max)))
,el)
`(let ((val (eval ,el)))
(if (> (,length-fun val) ,max)
,(if (< max-width 0)
`(,substring-fun val (- (,length-fun val) ,max))
- `(,substring-fun val 0 ,max))
+ `(if (gnus-lrm-string-p val)
+ (concat (,substring-fun val 0 ,max) ,gnus-lrm-string)
+ (,substring-fun val 0 ,max)))
val)))))
(defun gnus-tilde-cut-form (el cut-width)
;; them will have the balloon-help text property.
(let ((case-fold-search nil))
(if (string-match
- "\\`\\(.*\\)%[0-9]?[{(«]\\(.*\\)%[0-9]?[»})]\\(.*\n?\\)\\'\\|%[-0-9]*=\\|%[-0-9]*\\*"
+ "\\`\\(.*\\)%[0-9]?[{(«]\\(.*\\)%[0-9]?[»})]\\(.*\n?\\)\\'\\|%[-0-9]*=\\|%[-0-9]*\\*"
format)
(gnus-parse-complex-format format spec-alist)
;; This is a simple format.
(goto-char (point-min))
(insert "(\"")
;; Convert all font specs into font spec lists.
- (while (re-search-forward "%\\([0-9]+\\)?\\([«»{}()]\\)" nil t)
+ (while (re-search-forward "%\\([0-9]+\\)?\\([«»{}()]\\)" nil t)
(let ((number (if (match-beginning 1)
(match-string 1) "0"))
(delim (aref (match-string 2) 0)))
(if (or (= delim ?\()
(= delim ?\{)
- (= delim ?\«))
+ (= delim 171)) ; «
(replace-match (concat "\"("
(cond ((= delim ?\() "mouse")
((= delim ?\{) "face")
(delete-char -1))
(t
(if (null args)
- (error 'wrong-number-of-arguments #'my-format n fstring))
+ (signal 'wrong-number-of-arguments
+ (list #'gnus-xmas-format n fstring)))
(let* ((minlen (string-to-number (or (match-string 2) "")))
(arg (car args))
(str (if (stringp arg) arg (format "%s" arg)))
(not (and (featurep 'xemacs)
gnus-use-correct-string-widths)))
(insert (number-to-string pad-width)))
- ;; Create the form to be evaled.
+ ;; Create the form to be evalled.
(if (or max-width cut-width ignore-value
(and (featurep 'xemacs)
gnus-use-correct-string-widths))
((string= fstring "%d")
(setq dontinsert t)
(if insert
- (list `(princ ,(car flist)))
+ `(insert (int-to-string ,(car flist)))
(list `(int-to-string ,(car flist)))))
;; Just lots of chars and strings.
((string-match "\\`\\(%[cs]\\)+\\'" fstring)
(when result
(if dontinsert
result
- `(progn
- (insert ,@result)
- (if (bolp)
- ;; remove trailing whitespaces from the line
- (progn
- (end-of-line 0)
- (skip-chars-backward " ")
- (delete-region (point) (point-at-eol))
- (forward-line 1))))))
+ (cons 'insert result)))
(cond ((stringp result)
result)
((consp result)
(gnus-add-text-properties (point) (progn (eval form) (point)) props)
(eval form))))
-(defun gnus-compile ()
- "Byte-compile the user-defined format specs."
- (interactive)
- (require 'bytecomp)
- (let ((entries gnus-format-specs)
- (byte-compile-warnings '(unresolved callargs redefine))
- entry gnus-tmp-func)
- (save-excursion
- (gnus-message 7 "Compiling format specs...")
-
- (while entries
- (setq entry (pop entries))
- (if (memq (car entry) '(gnus-version version))
- (setq gnus-format-specs (delq entry gnus-format-specs))
- (let ((form (caddr entry)))
- (when (and (listp form)
- ;; Under GNU Emacs, it's (byte-code ...)
- (not (eq 'byte-code (car form)))
- ;; Under XEmacs, it's (funcall #<compiled-function ...>)
- (not (and (eq 'funcall (car form))
- (byte-code-function-p (cadr form)))))
- (defalias 'gnus-tmp-func `(lambda () ,form))
- (byte-compile 'gnus-tmp-func)
- (setcar (cddr entry) (gnus-byte-code 'gnus-tmp-func))))))
-
- (push (cons 'version emacs-version) gnus-format-specs)
- ;; Mark the .newsrc.eld file as "dirty".
- (gnus-dribble-touch)
- (gnus-message 7 "Compiling user specs...done"))))
-
(defun gnus-set-format (type &optional insertable)
(set (intern (format "gnus-%s-line-format-spec" type))
(gnus-parse-format
(provide 'gnus-spec)
;; Local Variables:
-;; coding: iso-8859-1
+;; coding: utf-8
;; End:
-;; arch-tag: a4328fa1-1f84-4b09-97ad-4b5767cfd50f
;;; gnus-spec.el ends here