From f9d746bd4600d34d3b3fe72d5159b58d6160bfb9 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Sat, 13 Jun 2009 03:50:23 +0200
Subject: Guile: rewriting stack trace captures - not yet complete.

---
 elisp/geiser-connection.el |  3 ++-
 elisp/geiser-debug.el      | 16 ++++++----------
 elisp/geiser-syntax.el     | 38 +++++++++++++++++++++++---------------
 3 files changed, 31 insertions(+), 26 deletions(-)

diff --git a/elisp/geiser-connection.el b/elisp/geiser-connection.el
index 702f3b6..33579f6 100644
--- a/elisp/geiser-connection.el
+++ b/elisp/geiser-connection.el
@@ -204,7 +204,8 @@
         (geiser-con--connection-clean-current-request geiser-con--connection)))))
 
 (defadvice comint-redirect-setup
-  (after geiser-con--advice (output-buffer comint-buffer finished-regexp &optional echo))
+  (after geiser-con--advice
+         (output-buffer comint-buffer finished-regexp &optional echo))
   (with-current-buffer comint-buffer
     (when geiser-con--connection (setq mode-line-process nil))))
 (ad-activate 'comint-redirect-setup)
diff --git a/elisp/geiser-debug.el b/elisp/geiser-debug.el
index bc155c9..7ebd0b5 100644
--- a/elisp/geiser-debug.el
+++ b/elisp/geiser-debug.el
@@ -72,14 +72,9 @@
 (defsubst geiser-debug--frame-source-column (src) (or (caddr src) 0))
 
 (defun geiser-debug--display-stack (stack)
-  (let* ((frames (cdr stack))
-         (step 2)
-         (indent (* (length frames) step)))
-    (dolist (f frames)
-      (geiser-debug--display-stack-frame f indent)
-      (setq indent (- indent step)))))
-
-(defun geiser-debug--display-stack-frame (frame offset)
+  (mapc 'geiser-debug--display-stack-frame (reverse (cdr stack))))
+
+(defun geiser-debug--display-stack-frame (frame)
   (let ((procedure (geiser-debug--frame-proc frame))
         (source (geiser-debug--frame-source frame))
         (description (geiser-debug--frame-desc frame)))
@@ -89,7 +84,7 @@
                         (geiser-debug--frame-source-line source)
                         (1+ (geiser-debug--frame-source-column source))))
       (insert "In expression:\n"))
-    (insert (format "%s%s\n" (make-string offset ?\ ) description))))
+    (insert (format "%s\n" description))))
 
 (defsubst geiser-debug--wrap-region (str)
   (format "(begin %s)" str))
@@ -112,7 +107,8 @@
 (defun geiser-debug--expand-region (start end all wrap)
   (let* ((str (buffer-substring-no-properties start end))
          (wrapped (if wrap (geiser-debug--wrap-region str) str))
-         (code `(:eval ((:ge macroexpand) (quote (:scm ,wrapped)) ,(if all :t :f))))
+         (code `(:eval ((:ge macroexpand) (quote (:scm ,wrapped))
+                        ,(if all :t :f))))
          (ret (geiser-eval--send/wait code))
          (err (geiser-eval--retort-error ret))
          (result (geiser-eval--retort-result ret)))
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 472a4e5..14d996c 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -85,20 +85,27 @@
 (geiser-popup--define syntax " *geiser syntax analyst*" scheme-mode)
 
 (defun geiser-syntax--prepare-scheme-for-elisp-reader ()
-  (goto-char (point-min))
-  (while (re-search-forward "#\<\\([^>]*?\\)\>" nil t)
-    (let ((from (match-beginning 1))
-          (to (match-end 1)))
-      (goto-char from)
-      (while (re-search-forward "\\([() ;'`]\\)" to t)
-        (replace-match "\\\\\\1"))
-      (goto-char to)))
-  (goto-char (point-min))
-  (while (re-search-forward "#(" nil t) (replace-match "(vector "))
-  (goto-char (point-min))
-  (while (re-search-forward "#" nil t) (replace-match "\\\\#"))
-  (goto-char (point-min))
-  (skip-syntax-forward "^("))
+  (let ((end (save-excursion
+               (goto-char (point-max))
+               (and (re-search-backward "(output \\. \"" nil t)
+                    (point)))))
+    (goto-char (point-min))
+    (while (re-search-forward "#\<\\([^>]*?\\)\>" end t)
+      (let ((from (match-beginning 1))
+            (to (match-end 1)))
+        (goto-char from)
+        (while (re-search-forward "\\([ ;'`]\\)" to t)
+          (replace-match "\\\\\\1"))
+        (goto-char from)
+        (while (re-search-forward "[()]" to t)
+          (replace-match ""))
+        (goto-char to)))
+    (goto-char (point-min))
+    (while (re-search-forward "#(" end t) (replace-match "(vector "))
+    (goto-char (point-min))
+    (while (re-search-forward "#" end t) (replace-match "\\\\#"))
+    (goto-char (point-min))
+    (skip-syntax-forward "^(")))
 
 (defsubst geiser-syntax--del-sexp (arg)
   (let ((p (point)))
@@ -121,7 +128,8 @@
       (when p ;; inside a comment or string
         (delete-region p (point-max))
         (insert geiser-syntax--placeholder)))
-    (when (cond ((eq (char-after (1- (point))) ?\)) (geiser-syntax--del-sexp -1) t)
+    (when (cond ((eq (char-after (1- (point))) ?\))
+                 (geiser-syntax--del-sexp -1) t)
                 ((geiser-syntax--beginning-of-form)
                  (delete-region (point) (point-max)) t)
                 ((memq (char-after (1- (point))) (list ?. ?@ ?, ?\' ?\` ?\# ?\\))
-- 
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