From 7f83e7e5367cc11071a628a6ff7ba0c050a80c6d Mon Sep 17 00:00:00 2001 From: Eli Zaretskii Date: Sun, 26 Jun 2016 19:40:12 +0300 Subject: [PATCH] Fix slow redisplay in term-mode * lisp/term.el (term-mode): Move the setting of bidi-paragraph-direction from 'ansi-term' to here, since term-mode is also affected. Do not merge to master, since there the problem is solved in bidi.c by changing the regexps that delimit a paragraph. (Bug#23801) --- lisp/term.el | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/lisp/term.el b/lisp/term.el index 7e44c57228e..562d9b0487c 100644 --- a/lisp/term.el +++ b/lisp/term.el @@ -1098,6 +1098,11 @@ Entry to this mode runs the hooks on `term-mode-hook'." (term-reset-size (cdr size) (car size))) size)) + ;; Without the below setting, term-mode and ansi-term behave + ;; sluggishly when the buffer includes a lot of whitespace + ;; characters. + (setq bidi-paragraph-direction 'left-to-right) + (easy-menu-add term-terminal-menu) (easy-menu-add term-signals-menu) (or term-input-ring @@ -4138,17 +4143,7 @@ the process. Any more args are arguments to PROGRAM." ;; .emacs ... (term-set-escape-char ?\C-x)) - (switch-to-buffer term-ansi-buffer-name) - ;; For some reason, without the below setting, ansi-term behaves - ;; sluggishly, not clear why, since the buffer is typically very - ;; small. - ;; - ;; There's a larger problem here with supporting bidirectional text: - ;; the application that writes to the terminal could have its own - ;; ideas about displaying bidirectional text, and might not want us - ;; reordering the text or deciding on base paragraph direction. One - ;; such application is Emacs in TTY mode... FIXME. - (setq bidi-paragraph-direction 'left-to-right)) + (switch-to-buffer term-ansi-buffer-name)) ;;; Serial terminals -- 2.39.2