From de7d5cb6a7540bfa257391136462152df976ba0c Mon Sep 17 00:00:00 2001 From: Karl Heuer Date: Sat, 19 Mar 1994 03:48:55 +0000 Subject: [PATCH] (standard-display-ascii): Error if using a windowing system. (standard-display-g1, standard-display-graphic): Ditto. (standard-display-underline): If window system, use underline font. --- lisp/disp-table.el | 24 ++++++++++++++++++++---- 1 file changed, 20 insertions(+), 4 deletions(-) diff --git a/lisp/disp-table.el b/lisp/disp-table.el index fdf6a5acbb2..d8c861295b9 100644 --- a/lisp/disp-table.el +++ b/lisp/disp-table.el @@ -89,14 +89,22 @@ ;;;###autoload (defun standard-display-ascii (c s) - "Display character C using string S." + "Display character C using string S. +S is usually a terminal-dependent escape sequence. +This function is meaningless for an X frame." + (if window-system + (error "Cannot use string glyphs in a windowing system")) (or standard-display-table (setq standard-display-table (make-vector 261 nil))) (aset standard-display-table c (apply 'vector (append s nil)))) ;;;###autoload (defun standard-display-g1 (c sc) - "Display character C as character SC in the g1 character set." + "Display character C as character SC in the g1 character set. +This function assumes that your terminal uses the SO/SI characters; +it is meaningless for an X frame." + (if window-system + (error "Cannot use string glyphs in a windowing system")) (or standard-display-table (setq standard-display-table (make-vector 261 nil))) (aset standard-display-table c @@ -104,7 +112,11 @@ ;;;###autoload (defun standard-display-graphic (c gc) - "Display character C as character GC in graphics character set." + "Display character C as character GC in graphics character set. +This function assumes VT100-compatible escapes; it is meaningless for an +X frame." + (if window-system + (error "Cannot use string glyphs in a windowing system")) (or standard-display-table (setq standard-display-table (make-vector 261 nil))) (aset standard-display-table c @@ -113,10 +125,14 @@ ;;;###autoload (defun standard-display-underline (c uc) "Display character C as character UC plus underlining." + (if window-system (require 'faces)) (or standard-display-table (setq standard-display-table (make-vector 261 nil))) (aset standard-display-table c - (vector (create-glyph (concat "\e[4m" (char-to-string uc) "\e[m"))))) + (vector + (if window-system + (logior uc (lsh (face-id (internal-find-face 'underline)) 8)) + (create-glyph (concat "\e[4m" (char-to-string uc) "\e[m")))))) ;; Allocate a glyph code to display by sending STRING to the terminal. ;;;###autoload -- 2.39.5