From 710d0cec8854a4e89f4948d49e614f286913f711 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Thu, 2 Jul 2009 05:29:04 +0200
Subject: Simpler, nicer, more efficient handling of evaluation results. It
 comes with a pony too.

---
 elisp/geiser-connection.el |  1 -
 elisp/geiser-debug.el      | 10 +++++++---
 elisp/geiser-eval.el       |  9 ++++++++-
 elisp/geiser-syntax.el     | 10 ----------
 4 files changed, 15 insertions(+), 15 deletions(-)

(limited to 'elisp')

diff --git a/elisp/geiser-connection.el b/elisp/geiser-connection.el
index 0ec6405..4f8592b 100644
--- a/elisp/geiser-connection.el
+++ b/elisp/geiser-connection.el
@@ -165,7 +165,6 @@
           (goto-char (point-min))
           (re-search-forward "((\\(result\\|error\\)\\>")
           (goto-char (match-beginning 0))
-          (geiser-syntax--prepare-scheme-for-elisp-reader)
           (let ((form (read (current-buffer))))
             (if (listp form) form (error))))
       (error `((error (key . geiser-con-error))
diff --git a/elisp/geiser-debug.el b/elisp/geiser-debug.el
index ec2e93e..6d795df 100644
--- a/elisp/geiser-debug.el
+++ b/elisp/geiser-debug.el
@@ -59,7 +59,7 @@
 
 ;;; Displaying retorts
 
-(defun geiser-debug--display-retort (what ret)
+(defun geiser-debug--display-retort (what ret &optional res)
   (let* ((err (geiser-eval--retort-error ret))
          (key (geiser-eval--error-key err))
          (output (geiser-eval--retort-output ret))
@@ -69,6 +69,9 @@
       (erase-buffer)
       (insert what)
       (newline 2)
+      (when res
+        (insert res)
+        (newline 2))
       (unless (geiser-impl--display-error impl module key output)
         (when err (insert (geiser-eval--error-str err) "\n\n"))
         (when output (insert output "\n\n")))
@@ -88,10 +91,11 @@
          (wrapped (if wrap (geiser-debug--wrap-region str) str))
          (code `(,(if compile :comp :eval) (:scm ,wrapped)))
          (ret (geiser-eval--send/wait code))
+         (res (geiser-eval--retort-result-str ret))
          (err (geiser-eval--retort-error ret)))
     (when and-go (funcall and-go))
-    (when (not err) (message (format "=> %S" (geiser-eval--retort-result ret))))
-    (geiser-debug--display-retort str ret)))
+    (when (not err) (message "%s" res))
+    (geiser-debug--display-retort str ret res)))
 
 (defun geiser-debug--expand-region (start end all wrap)
   (let* ((str (buffer-substring-no-properties start end))
diff --git a/elisp/geiser-eval.el b/elisp/geiser-eval.el
index 90be67c..428d057 100644
--- a/elisp/geiser-eval.el
+++ b/elisp/geiser-eval.el
@@ -145,7 +145,14 @@ EVAL, COMPILE, LOAD-FILE and COMPILE-FILE should be supported."))
 
 (defun geiser-eval--retort-result (ret)
   (let ((values (cdr (assoc 'result ret))))
-    (if (> (length values) 1) (cons :values values) (car values))))
+    (and (stringp (car values))
+         (ignore-errors (car (read-from-string (car values)))))))
+
+(defun geiser-eval--retort-result-str (ret)
+  (let ((values (cdr (assoc 'result ret))))
+    (if values
+        (concat "=> " (mapconcat 'identity values "\n=> "))
+      "(No value)"))))
 
 (defsubst geiser-eval--retort-output (ret) (cdr (assoc 'output ret)))
 (defsubst geiser-eval--retort-error (ret) (cdr (assoc 'error ret)))
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index c70aacb..db1c842 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -84,16 +84,6 @@
 
 (geiser-popup--define syntax " *geiser syntax analyst*" scheme-mode)
 
-(defun geiser-syntax--prepare-scheme-for-elisp-reader ()
-  (let ((end (save-excursion
-               (goto-char (point-max))
-               (and (re-search-backward "(output \\. \"" nil t)
-                    (point)))))
-    (save-excursion
-      (while (re-search-forward "#(" end t) (replace-match "(vector "))
-      (goto-char (point-min))
-      (while (re-search-forward "#" end t) (replace-match "\\\\#")))))
-
 (defsubst geiser-syntax--del-sexp (arg)
   (let ((p (point)))
     (forward-sexp arg)
-- 
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