;;; disp-table.el --- functions for dealing with char tables
;; Copyright (C) 1987, 1994, 1995, 1999, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007 Free Software Foundation, Inc.
+;; 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
;; Author: Erik Naggum <erik@naggum.no>
;; Based on a previous version by Howard Gayle
;;;###autoload
(defun describe-display-table (dt)
"Describe the display table DT in a help buffer."
- (with-output-to-temp-buffer "*Help*"
+ (with-help-window "*Help*"
(princ "\nTruncation glyph: ")
(prin1 (display-table-slot dt 'truncation))
(princ "\nWrap glyph: ")
(aset vector i (aref dt i))
(setq i (1+ i)))
(describe-vector vector))
- (help-mode))
- (print-help-return-message)))
+ (help-mode))))
;;;###autoload
(defun describe-current-display-table ()
"Return a glyph code representing char CHAR with face FACE."
;; Due to limitations on Emacs integer values, faces with
;; face id greater that 512 are silently ignored.
- (if (and face (<= (face-id face) #x1ff))
- (logior char (lsh (face-id face) 22))
- char))
+ (if (not face)
+ char
+ (let ((fid (face-id face)))
+ (if (< fid 64) ; we have 32 - 3(LSB) - 1(SIGN) - 22(CHAR) = 6 bits for face id
+ (logior char (lsh fid 22))
+ (cons char fid)))))
;;;###autoload
(defun glyph-char (glyph)
"Return the character of glyph code GLYPH."
- (logand glyph #x3fffff))
+ (if (consp glyph)
+ (car glyph)
+ (logand glyph #x3fffff)))
;;;###autoload
(defun glyph-face (glyph)
"Return the face of glyph code GLYPH, or nil if glyph has default face."
- (let ((face-id (lsh glyph -22)))
+ (let ((face-id (if (consp glyph) (cdr glyph) (lsh glyph -22))))
(and (> face-id 0)
- (car (delq nil (mapcar (lambda (face)
- (and (eq (get face 'face) face-id)
- face))
- (face-list)))))))
+ (catch 'face
+ (dolist (face (face-list))
+ (when (eq (face-id face) face-id)
+ (throw 'face face)))))))
;;;###autoload
(defun standard-display-european (arg)