Function: standard-display-underline
standard-display-underline is an autoloaded and byte-compiled function
defined in disp-table.el.gz.
Signature
(standard-display-underline C UC)
Documentation
Display character C as character UC plus underlining.
Source Code
;; Defined in /usr/src/emacs/lisp/disp-table.el.gz
;;;###autoload
(defun standard-display-underline (c uc)
"Display character C as character UC plus underlining."
(or standard-display-table
(setq standard-display-table (make-display-table)))
(aset standard-display-table c
(vector
(if window-system
(make-glyph-code uc 'underline)
(create-glyph (concat "\e[4m" (char-to-string uc) "\e[m"))))))