From 04652644b47528d0a3ab00c6475a6752e7a1dbb5 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Sun, 1 Mar 2009 00:41:08 +0100
Subject: Miscellaneous little fixes.

---
 elisp/geiser-autodoc.el               |  5 ++++-
 elisp/geiser-completion.el            |  5 ++---
 scheme/guile/geiser/introspection.scm | 24 +++++++++++++++---------
 3 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/elisp/geiser-autodoc.el b/elisp/geiser-autodoc.el
index 4c936cf..63eb3b9 100644
--- a/elisp/geiser-autodoc.el
+++ b/elisp/geiser-autodoc.el
@@ -88,7 +88,10 @@ when `geiser-autodoc-display-module-p' is on."
   (let ((p (point))
         (str (format "%s" (if (eq arg '\#:rest) "." arg))))
     (insert str)
-    (when (listp arg) (replace-regexp "(quote \\(.*\\))" "'\\1" nil p (point)))
+    (when (listp arg)
+      (save-excursion
+        (replace-regexp "(quote \\(.*\\))" "'\\1" nil p (point))
+        (replace-string "nil" "()" t p (point))))
     (when (= current pos)
       (put-text-property p (point) 'face 'geiser-font-lock-autodoc-current-arg))))
 
diff --git a/elisp/geiser-completion.el b/elisp/geiser-completion.el
index 7e1f642..3605ed5 100644
--- a/elisp/geiser-completion.el
+++ b/elisp/geiser-completion.el
@@ -150,7 +150,7 @@ terminates a current completion."
   (delete-duplicates
    (geiser-eval--send/result
     `(:eval ((:ge completions) ,prefix
-             (quote (:scm ,(geiser-syntax--get-partial-sexp))))))
+             (quote (:scm ,(or (geiser-syntax--get-partial-sexp) "()"))))))
    :test 'string=))
 
 (defsubst geiser-completion--module-list ()
@@ -161,8 +161,7 @@ terminates a current completion."
 
 (defun geiser-completion--complete (prefix modules)
   (let* ((symbols (if modules (geiser-completion--module-list)
-                    (append (geiser-syntax--local-bindings)
-                            (geiser-completion--symbol-list prefix))))
+                    (geiser-completion--symbol-list prefix)))
          (completions (all-completions prefix symbols))
          (partial (try-completion prefix symbols))
          (partial (if (eq partial t) prefix partial)))
diff --git a/scheme/guile/geiser/introspection.scm b/scheme/guile/geiser/introspection.scm
index c7b6de2..0a724f2 100644
--- a/scheme/guile/geiser/introspection.scm
+++ b/scheme/guile/geiser/introspection.scm
@@ -59,24 +59,30 @@
                (cons 'position (find-position args form))
                (cons 'module (symbol-module fun))))))
 
+(define (arglst args kind)
+  (let ((args (assq-ref args kind)))
+    (cond ((or (not args) (null? args)) '())
+          ((list? args) args)
+          (else (list args)))))
+
 (define (signature fun args)
-  (let ((req (assq-ref args 'required))
-        (opt (assq-ref args 'optional))
-        (key (assq-ref args 'keyword))
+  (let ((req (arglst args 'required))
+        (opt (arglst args 'optional))
+        (key (arglst args 'keyword))
         (rest (assq-ref args 'rest)))
-    (let ((sgn `(,fun ,@(or req '())
-                      ,@(if opt (cons #:optional opt) '())
-                      ,@(if key (cons #:key key) '()))))
+    (let ((sgn `(,fun ,@req
+                      ,@(if (not (null? opt)) (cons #:opt opt) '())
+                      ,@(if (not (null? key)) (cons #:key key) '()))))
       (if rest `(,@sgn #:rest ,rest) sgn))))
 
 (define (find-position args form)
   (let* ((lf (length form))
          (lf-1 (- lf 1)))
     (if (= 1 lf) 0
-        (let ((req (length (or (assq-ref args 'required) '())))
-              (opt (length (or (assq-ref args 'optional) '())))
+        (let ((req (length (arglst args 'required)))
+              (opt (length (arglst args 'optional)))
               (keys (map (lambda (k) (symbol->keyword (if (list? k) (car k) k)))
-                         (or (assq-ref args 'keyword) '())))
+                         (arglst args 'keyword)))
               (rest (assq-ref args 'rest)))
           (cond ((<= lf (+ 1 req)) lf-1)
                 ((<= lf (+ 1 req opt)) (if (> opt 0) lf lf-1))
-- 
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