From c0cd125512587b9d0181496df163cec1ceaf34c9 Mon Sep 17 00:00:00 2001 From: Kenichi Handa Date: Sun, 29 Jun 2008 14:44:12 +0000 Subject: [PATCH] (compose-region): Mention the special handling of TAB. --- lisp/composite.el | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/lisp/composite.el b/lisp/composite.el index ce920deaa02..429e83272b4 100644 --- a/lisp/composite.el +++ b/lisp/composite.el @@ -197,7 +197,12 @@ or a vector or list of integers and rules. If it is a character, it is an alternate character to display instead of the text in the region. -If it is a string, the elements are alternate characters. +If it is a string, the elements are alternate characters. In +this case, TAB element has a special meaning. If the first +characer is TAB, the glyphs are displayed with left padding space +so that no pixel overlaps with the previous column. If the last +character is TAB, the glyphs are displayed with rigth padding +space so that no pixel overlaps with the following column. If it is a vector or list, it is a sequence of alternate characters and composition rules, where (2N)th elements are characters and (2N+1)th -- 2.39.2