From a7d5b74b8fcda5952da0557bcd5d3cbb45fc6403 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Sun, 7 Mar 2010 05:16:20 +0100
Subject: New command to switch to REPL and put it in current module.

---
 elisp/geiser-mode.el | 10 ++++++++--
 elisp/geiser-plt.el  |  6 +++++-
 elisp/geiser-repl.el | 14 ++++++++++++++
 3 files changed, 27 insertions(+), 3 deletions(-)

(limited to 'elisp')

diff --git a/elisp/geiser-mode.el b/elisp/geiser-mode.el
index d083973..3e0f522 100644
--- a/elisp/geiser-mode.el
+++ b/elisp/geiser-mode.el
@@ -1,6 +1,6 @@
 ;; geiser-mode.el -- minor mode for scheme buffers
 
-;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
+;; Copyright (C) 2009, 2010 Jose Antonio Ortega Ruiz
 
 ;; This program is free software; you can redistribute it and/or
 ;; modify it under the terms of the Modified BSD License. You should
@@ -150,6 +150,12 @@ With prefix, recursively macro-expand the resulting expression."
     (geiser-impl--set-buffer-implementation impl)
     (geiser-repl--get-repl impl)))
 
+(defun geiser-mode-switch-to-repl (arg)
+  "Switches to Geiser REPL.
+With prefix, try to enter the current's buffer module."
+  (interactive "P")
+  (if arg (switch-to-geiser-module) (switch-to-geiser)))
+
 
 ;;; Geiser mode:
 
@@ -201,7 +207,7 @@ interacting with the Geiser REPL is at your disposal.
   (define-key geiser-mode-map (vector '(control ?c) `(control ,p) k) c)
   (define-key geiser-mode-map (vector '(control ?c) `(control ,p) `(control ,k)) c))
 
-(define-key geiser-mode-map "\C-c\C-z" 'switch-to-geiser)
+(define-key geiser-mode-map "\C-c\C-z" 'geiser-mode-switch-to-repl)
 (define-key geiser-mode-map "\C-c\C-s" 'geiser-set-scheme)
 
 (define-key geiser-mode-map "\C-c\C-l" 'geiser-load-current-buffer)
diff --git a/elisp/geiser-plt.el b/elisp/geiser-plt.el
index d9b3ca9..c808ed5 100644
--- a/elisp/geiser-plt.el
+++ b/elisp/geiser-plt.el
@@ -109,6 +109,9 @@ This function uses `geiser-plt-init-file' if it exists."
 (defun geiser-plt--symbol-begin (module)
   (save-excursion (skip-syntax-backward "^-()>") (point)))
 
+(defun geiser-plt--enter-command (module)
+  (and (stringp module) (format "(enter! (file %S))" module)))
+
 
 ;;; External help
 
@@ -169,13 +172,14 @@ This function uses `geiser-plt-init-file' if it exists."
 ;;; Implementation definition:
 
 (define-geiser-implementation plt
+  (unsupported-procedures '(callers callees generic-methods))
   (binary geiser-plt--binary)
   (arglist geiser-plt--parameters)
   (startup)
-  (unsupported-procedures '(callers callees generic-methods))
   (prompt-regexp geiser-plt--prompt-regexp)
   (marshall-procedure geiser-plt--geiser-procedure)
   (find-module geiser-plt--get-module)
+  (enter-command geiser-plt--enter-command)
   (find-symbol-begin geiser-plt--symbol-begin)
   (display-error geiser-plt--display-error)
   (display-help geiser-plt--external-help)
diff --git a/elisp/geiser-repl.el b/elisp/geiser-repl.el
index 2afdcef..facae50 100644
--- a/elisp/geiser-repl.el
+++ b/elisp/geiser-repl.el
@@ -227,6 +227,20 @@ If no REPL is running, execute `run-geiser' to start a fresh one."
 
 (defalias 'geiser 'switch-to-geiser)
 
+(geiser-impl--define-caller geiser-repl--enter-cmd enter-command (module)
+  "Function taking a module designator and returning a REPL enter
+module command as a string")
+
+(defun switch-to-geiser-module ()
+  "Switch to running Geiser REPL and try to enter current module."
+  (interactive)
+  (let ((m (geiser-repl--enter-cmd geiser-impl--implementation
+                                   (geiser-eval--get-module))))
+    (switch-to-geiser)
+    (when m
+      (comint-send-string nil m)
+      (comint-send-eof))))
+
 (defun geiser-repl-nuke ()
   "Try this command if the REPL becomes unresponsive."
   (interactive)
-- 
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