X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/9f2f14a0725211b13a744573344636b57b9c98b9..7ed767557eb608a0ad7097dc80d84af568ab00b1:/lisp/term.el

diff --git a/lisp/term.el b/lisp/term.el
index 5dd965d2d3..28be8c8c53 100644
--- a/lisp/term.el
+++ b/lisp/term.el
@@ -1,6 +1,6 @@
 ;;; term.el --- general command interpreter in a window stuff
 
-;; Copyright (C) 1988, 1990, 1992, 1994-1995, 2001-2015 Free Software
+;; Copyright (C) 1988, 1990, 1992, 1994-1995, 2001-2016 Free Software
 ;; Foundation, Inc.
 
 ;; Author: Per Bothner <per@bothner.com>
@@ -834,6 +834,10 @@ is buffer-local."
     (define-key map [down] 'term-send-down)
     (define-key map [right] 'term-send-right)
     (define-key map [left] 'term-send-left)
+    (define-key map [C-up] 'term-send-ctrl-up)
+    (define-key map [C-down] 'term-send-ctrl-down)
+    (define-key map [C-right] 'term-send-ctrl-right)
+    (define-key map [C-left] 'term-send-ctrl-left)
     (define-key map [delete] 'term-send-del)
     (define-key map [deletechar] 'term-send-del)
     (define-key map [backspace] 'term-send-backspace)
@@ -915,19 +919,6 @@ is buffer-local."
 
 (term-set-escape-char (or term-escape-char ?\C-c))
 
-(defvar overflow-newline-into-fringe)
-
-(defun term-window-width ()
-  (if (and (not (featurep 'xemacs))
-	   (display-graphic-p)
-	   overflow-newline-into-fringe
-	   ;; Subtract 1 from the width when any fringe has zero width,
-	   ;; not just the right fringe.  Bug#18601.
-	   (/= (frame-parameter nil 'left-fringe) 0)
-	   (/= (frame-parameter nil 'right-fringe) 0))
-      (window-body-width)
-    (1- (window-body-width))))
-
 
 (put 'term-mode 'mode-class 'special)
 
@@ -1014,7 +1005,7 @@ Entry to this mode runs the hooks on `term-mode-hook'."
   (setq buffer-display-table term-display-table)
   (set (make-local-variable 'term-home-marker) (copy-marker 0))
   (set (make-local-variable 'term-height) (1- (window-height)))
-  (set (make-local-variable 'term-width) (term-window-width))
+  (set (make-local-variable 'term-width) (window-max-chars-per-line))
   (set (make-local-variable 'term-last-input-start) (make-marker))
   (set (make-local-variable 'term-last-input-end) (make-marker))
   (set (make-local-variable 'term-last-input-match) "")
@@ -1217,6 +1208,10 @@ without any interpretation."
 (defun term-send-down  () (interactive) (term-send-raw-string "\eOB"))
 (defun term-send-right () (interactive) (term-send-raw-string "\eOC"))
 (defun term-send-left  () (interactive) (term-send-raw-string "\eOD"))
+(defun term-send-ctrl-up    () (interactive) (term-send-raw-string "\e[1;5A"))
+(defun term-send-ctrl-down  () (interactive) (term-send-raw-string "\e[1;5B"))
+(defun term-send-ctrl-right () (interactive) (term-send-raw-string "\e[1;5C"))
+(defun term-send-ctrl-left  () (interactive) (term-send-raw-string "\e[1;5D"))
 (defun term-send-home  () (interactive) (term-send-raw-string "\e[1~"))
 (defun term-send-insert() (interactive) (term-send-raw-string "\e[2~"))
 (defun term-send-end   () (interactive) (term-send-raw-string "\e[4~"))
@@ -1454,6 +1449,13 @@ Using \"emacs\" loses, because bash disables editing if $TERM == emacs.")
 	   (format "TERMINFO=%s" data-directory)
 	   (format term-termcap-format "TERMCAP="
 		   term-term-name term-height term-width)
+
+	   ;; This is for backwards compatibility with Bash 4.3 and earlier.
+	   ;; Remove this hack once Bash 4.4-or-later is common, because
+	   ;; it breaks './configure' of some packages that expect it to
+	   ;; say where to find EMACS.
+	   (format "EMACS=%s (term:%s)" emacs-version term-protocol-version)
+
 	   (format "INSIDE_EMACS=%s,term:%s" emacs-version term-protocol-version)
 	   (format "LINES=%d" term-height)
 	   (format "COLUMNS=%d" term-width))
@@ -3245,6 +3247,10 @@ See `term-prompt-regexp'."
    ;; \E[D - cursor left (terminfo: cub)
    ((eq char ?D)
     (term-move-columns (- (max 1 term-terminal-parameter))))
+   ;; \E[G - cursor motion to absolute column (terminfo: hpa)
+   ((eq char ?G)
+    (term-move-columns (- (max 0 (min term-width term-terminal-parameter))
+                          (term-current-column))))
    ;; \E[J - clear to end of screen (terminfo: ed, clear)
    ((eq char ?J)
     (term-erase-in-display term-terminal-parameter))
@@ -4144,7 +4150,17 @@ the process.  Any more args are arguments to PROGRAM."
     ;; .emacs ...
     (term-set-escape-char ?\C-x))
 
-  (switch-to-buffer term-ansi-buffer-name))
+  (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))
 
 
 ;;; Serial terminals