From: Eli Zaretskii <eliz@gnu.org>
Date: Sat, 26 Nov 2005 10:51:22 +0000 (+0000)
Subject: (inferior-octave-startup): Force a non-empty string for secondary prompt PS2.
X-Git-Tag: emacs-pretest-22.0.90~5671
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=107dd21bcae503fa862f242006253b7f2738bfe3;p=emacs.git

(inferior-octave-startup): Force a non-empty string for secondary prompt PS2.
---

diff --git a/lisp/progmodes/octave-inf.el b/lisp/progmodes/octave-inf.el
index 4f0875bbf99..67b5b108fa5 100644
--- a/lisp/progmodes/octave-inf.el
+++ b/lisp/progmodes/octave-inf.el
@@ -220,6 +220,13 @@ startup file, `~/.emacs-octave'."
 	  (concat (mapconcat
 		   'identity inferior-octave-output-list "\n")
 		  "\n"))))
+
+    ;; An empty secondary prompt, as e.g. obtained by '--braindead',
+    ;; means trouble.
+    (inferior-octave-send-list-and-digest (list "PS2\n"))
+    (if (string-match "^PS2 = *$" (car inferior-octave-output-list))
+	(inferior-octave-send-list-and-digest (list "PS2 = \"> \"\n")))
+
     ;; O.k., now we are ready for the Inferior Octave startup commands.
     (let* (commands
 	   (program (file-name-nondirectory inferior-octave-program))