From e13172c2855cc7fcb30c6dac231210c6e8534b18 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Fri, 12 Nov 2010 02:20:14 +0100
Subject: Better EOT token for more robust communication

---
 elisp/geiser-connection.el         | 10 +++++-----
 elisp/geiser-guile.el              |  4 ++--
 elisp/geiser-repl.el               |  5 ++++-
 scheme/guile/geiser/evaluation.scm |  1 +
 scheme/racket/geiser/eval.rkt      |  3 ++-
 5 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/elisp/geiser-connection.el b/elisp/geiser-connection.el
index c50e207..324532b 100644
--- a/elisp/geiser-connection.el
+++ b/elisp/geiser-connection.el
@@ -70,14 +70,14 @@
 
 ;;; Connection datatype:
 
+(defun geiser-con--combined-prompt (prompt debug)
+  (format "\\(%s%s\\)" prompt (if debug (format "\\|%s" debug) "")))
+
 (defun geiser-con--make-connection (proc prompt debug-prompt)
   (list :geiser-connection
         (cons :tq (tq-create proc))
-        (cons :eot (format "\\(%s%s\\)"
-                           prompt
-                           (if debug-prompt
-                               (format "\\|%s" debug-prompt)
-                             "")))
+        (cons :eot (format "\0\n%s"
+                           (geiser-con--combined-prompt prompt debug-prompt)))
         (cons :prompt prompt)
         (cons :debug-prompt debug-prompt)
         (cons :count 0)
diff --git a/elisp/geiser-guile.el b/elisp/geiser-guile.el
index 1295bac..afb7992 100644
--- a/elisp/geiser-guile.el
+++ b/elisp/geiser-guile.el
@@ -263,8 +263,8 @@ it spawn a server thread."
                           `((,geiser-guile--path-rx 1
                                                     compilation-error-face)))
   (when remote
-    (geiser-eval--send/wait (concat (geiser-guile--load-path-string) "\n"))
-    (geiser-eval--send/wait ",use (geiser emacs)\n"))
+    (geiser-repl--send-silent (geiser-guile--load-path-string))
+    (geiser-repl--send-silent ",use (geiser emacs)"))
   (geiser-guile-update-warning-level))
 
 (defconst geiser-guile--init-server-command
diff --git a/elisp/geiser-repl.el b/elisp/geiser-repl.el
index 2117ff1..d99ace0 100644
--- a/elisp/geiser-repl.el
+++ b/elisp/geiser-repl.el
@@ -255,7 +255,7 @@ module command as a string")
                                              prompt-rx
                                              deb-prompt-rx))
           (set (make-local-variable 'comint-prompt-regexp)
-               (geiser-con--connection-eot geiser-repl--connection))
+               (geiser-con--combined-prompt prompt-rx deb-prompt-rx))
           (apply 'make-comint-in-buffer `(,cname ,(current-buffer) ,address)))
       (error (insert "Unable to start REPL:\n\n"
                      (error-message-string err) "\n")
@@ -284,6 +284,9 @@ module command as a string")
     (let ((comint-input-filter (lambda (x) nil)))
       (comint-send-input nil t))))
 
+(defun geiser-repl--send-silent (cmd)
+  (comint-redirect-results-list cmd ".+" 0))
+
 
 ;;; REPL history and clean-up:
 
diff --git a/scheme/guile/geiser/evaluation.scm b/scheme/guile/geiser/evaluation.scm
index 305ccfd..d7d0a68 100644
--- a/scheme/guile/geiser/evaluation.scm
+++ b/scheme/guile/geiser/evaluation.scm
@@ -50,6 +50,7 @@
 
 (define (write-result result output)
   (write (list (cons 'result result) (cons 'output output)))
+  (write-char #\nul)
   (newline))
 
 (define (call-with-result thunk)
diff --git a/scheme/racket/geiser/eval.rkt b/scheme/racket/geiser/eval.rkt
index 78db857..1efaded 100644
--- a/scheme/racket/geiser/eval.rkt
+++ b/scheme/racket/geiser/eval.rkt
@@ -17,7 +17,7 @@
          compile-file
          macroexpand
          make-repl-reader)
-	 
+
 
 (require geiser/enter geiser/modules geiser/autodoc)
 (require errortrace/errortrace-lib)
@@ -57,6 +57,7 @@
           (lambda ()
             (update-signature-cache spec form)
             (eval form (module-spec->namespace spec lang)))))
+  (write-char #\null)
   (newline))
 
 (define compile-in eval-in)
-- 
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