From 1dd9eeb3cb80260738a5683e9a41b6f66acd7460 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Tue, 16 Jun 2009 22:35:21 +0200
Subject: Better parsing of scheme retorts in the Emacs end.

---
 elisp/geiser-syntax.el | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 14d996c..c70aacb 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -89,23 +89,10 @@
                (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 "^(")))
+    (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)))
-- 
cgit v1.2.3


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 --------
 scheme/guile/geiser/evaluation.scm | 51 ++++++++++++++++++--------------------
 scheme/plt/geiser/eval.ss          |  8 ++++--
 6 files changed, 45 insertions(+), 44 deletions(-)

(limited to 'elisp/geiser-syntax.el')

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)
diff --git a/scheme/guile/geiser/evaluation.scm b/scheme/guile/geiser/evaluation.scm
index 3e38843..c2147a1 100644
--- a/scheme/guile/geiser/evaluation.scm
+++ b/scheme/guile/geiser/evaluation.scm
@@ -47,40 +47,37 @@
     (else (display (format "ERROR: ~a, args: ~a" (car args) (cdr args)))))
   `(error (key . ,(car args))))
 
-(define (evaluate form module-name evaluator)
-  (let ((module (or (and (list? module-name)
-                         (resolve-module module-name))
-                    (current-module)))
-        (evaluator (lambda (f m)
-                     (call-with-values (lambda () (evaluator f m)) list)))
-        (result #f)
-        (captured-stack #f)
-        (error #f))
+(define (ge:compile form module-name)
+  (let* ((module (or (and (list? module-name)
+                          (resolve-module module-name))
+                     (current-module)))
+         (result #f)
+         (captured-stack #f)
+         (error #f)
+         (ev (lambda ()
+               (save-module-excursion
+                (set-current-module module)
+                (set! result (call-with-values
+                                 (lambda () (compile form))
+                               (lambda vs
+                                 (map (lambda (v)
+                                        (with-output-to-string
+                                          (lambda () (write v))))
+                                      vs))))))))
     (let ((output
            (with-output-to-string
              (lambda ()
-               (set! result
-                     (catch #t
-                       (lambda ()
-                         (start-stack 'geiser-eval (evaluator form module)))
-                       (lambda args
-                         (set! error #t)
-                         (apply handle-error captured-stack args))
-                       (lambda args
-                         (set! captured-stack (make-stack #t 2 15)))))))))
+               (catch #t
+                 (lambda () (start-stack 'geiser-eval (ev)))
+                 (lambda args
+                   (set! error #t)
+                   (apply handle-error captured-stack args))
+                 (lambda args
+                   (set! captured-stack (make-stack #t 2 15))))))))
       (write `(,(if error result (cons 'result result))
                (output . ,output)))
       (newline))))
 
-(define (eval-compile form module)
-  (save-module-excursion
-   (lambda ()
-     (set-current-module module)
-     (compile form))))
-
-(define (ge:compile form module-name)
-  (evaluate form module-name eval-compile))
-
 (define ge:eval ge:compile)
 
 (define (ge:compile-file path)
diff --git a/scheme/plt/geiser/eval.ss b/scheme/plt/geiser/eval.ss
index 435b73b..5ae81ed 100644
--- a/scheme/plt/geiser/eval.ss
+++ b/scheme/plt/geiser/eval.ss
@@ -49,8 +49,12 @@
   (set! last-result `((error (key . ,(exn-key e)))))
   (display (exn-message e)))
 
-(define (set-last-result v . vs)
-  (set! last-result `((result  ,v ,@vs))))
+(define (write-value v)
+  (with-output-to-string
+    (lambda () (write v))))
+
+(define (set-last-result . vs)
+  (set! last-result `((result  ,@(map write-value vs)))))
 
 (define (eval-in form spec)
   (set-last-result (void))
-- 
cgit v1.2.3


From 283e6f040449bb4f740991956007332c48308b38 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Mon, 17 Aug 2009 04:18:02 +0200
Subject: Simpler, more correct and efficient autodoc implementation.

Not that it was difficult: it's replacing an ugly kludge.
---
 elisp/geiser-autodoc.el      | 148 ++++++++++++++++++++++---------------------
 elisp/geiser-syntax.el       |  27 ++++++++
 scheme/guile/geiser/doc.scm  |  85 ++++++-------------------
 scheme/plt/geiser/autodoc.ss |  97 ++++++++--------------------
 4 files changed, 149 insertions(+), 208 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-autodoc.el b/elisp/geiser-autodoc.el
index 1225f87..16ca9ac 100644
--- a/elisp/geiser-autodoc.el
+++ b/elisp/geiser-autodoc.el
@@ -46,14 +46,6 @@
   'font-lock-function-name-face
   geiser-autodoc "highlighting procedure name in autodoc messages")
 
-(geiser-custom--defface autodoc-optional-arg-marker
-  'font-lock-keyword-face
-  geiser-autodoc "highlighting #:opt marker in autodoc messages")
-
-(geiser-custom--defface autodoc-key-arg-marker
-  'font-lock-keyword-face
-  geiser-autodoc "highlighting #:key marker in autodoc messages")
-
 (defcustom geiser-autodoc-delay 0.3
   "Delay before autodoc messages are fetched and displayed, in seconds."
   :type 'number
@@ -74,82 +66,92 @@ when `geiser-autodoc-display-module-p' is on."
 ;;; Procedure arguments:
 
 (make-variable-buffer-local
- (defvar geiser-autodoc--last nil))
-
-(make-variable-buffer-local
- (defvar geiser-autodoc--last-result nil))
-
-(defun geiser-autodoc--function-args (form)
-  (if (equal (car geiser-autodoc--last) form) (cdr geiser-autodoc--last)
-    (when form
-      (let ((res (geiser-eval--send/result
-                  `(:eval ((:ge autodoc) (quote (:scm ,form))))
-                  500)))
-        (when (and res (listp res))
-          (unless (equalp res geiser-autodoc--last-result)
-            (setq geiser-autodoc--last-result res)
-            (setq geiser-autodoc--last
-                  (cons form
-                        (geiser-autodoc--str (cdr (assoc 'signature res))
-                                             (or (cdr (assoc 'position res)) 0)
-                                             (cdr (assoc 'module res))))))
-          (cdr geiser-autodoc--last))))))
-
-(defun geiser-autodoc--insert-arg (arg current pos)
-  (let ((p (point))
-        (str (format "%s" (cond ((eq arg 'geiser-rest_marker) ".")
-                                ((eq arg 'geiser-opt_marker) "#:opt")
-                                ((eq arg 'geiser-key_marker) "#:key")
-                                (t arg))))
-        (face (cond ((eq 'geiser-opt_marker arg)
-                     'geiser-font-lock-autodoc-optional-arg-marker)
-                    ((eq 'geiser-key_marker arg)
-                     'geiser-font-lock-autodoc-key-arg-marker)
-                    ((= current pos)
-                     'geiser-font-lock-autodoc-current-arg)
-                    (t nil))))
-    (insert str)
-    (when (listp arg)
-      (save-excursion
-        (replace-regexp "(quote \\(.*\\))" "'\\1" nil p (point))
-        (replace-string "nil" "()" t p (point))))
-    (when face (put-text-property p (point) 'face face))))
+ (defvar geiser-autodoc--cached-signatures nil))
+
+(defun geiser-autodoc--get-signatures (funs)
+  (when funs
+    (let ((missing) (cached))
+      (if (not geiser-autodoc--cached-signatures)
+          (setq missing funs)
+        (dolist (f funs)
+          (let ((cf (assq f geiser-autodoc--cached-signatures)))
+            (if cf (push cf cached)
+              (push f missing)))))
+      (unless cached
+        (setq geiser-autodoc--cached-signatures nil))
+      (if (not missing)
+          geiser-autodoc--cached-signatures
+        (let ((res (geiser-eval--send/result `(:eval ((:ge autodoc)
+                                                      (quote ,missing)))
+                                             500)))
+          (when res
+            (setq geiser-autodoc--cached-signatures (append cached res))))))))
+
+(defun geiser-autodoc--insert-args (args current &optional pos)
+  (dolist (a args)
+    (let ((p (point)))
+      (insert (format "%s" a))
+      (when (or (and (numberp pos)
+                     (numberp current)
+                     (setq current (1+ current))
+                     (= (1+ pos) current))
+                (and (symbolp current)
+                     (listp a)
+                     (eq current (car a))))
+        (put-text-property p (point) 'face 'geiser-font-lock-autodoc-current-arg)
+        (setq pos nil current nil)))
+    (insert " "))
+  (when args (backward-char))
+  current)
 
 (defsubst geiser-autodoc--proc-name (proc module)
   (let ((str (if module
                  (format geiser-autodoc-procedure-name-format module proc)
                proc)))
-    (put-text-property 0 (length str)
-                       'face 'geiser-font-lock-autodoc-procedure-name
-                       str)
-    str))
-
-(defun geiser-autodoc--str (signature pos module)
-  (when (consp signature)
-    (let* ((proc (car signature))
-           (args (cdr signature))
-           (len (if (listp args) (length args) 0))
-           (current 1)
-           (pos (if (> pos len) len pos)))
-      (if (eq args 'variable)
-          (geiser-autodoc--proc-name proc module)
-        (save-current-buffer
-          (set-buffer (geiser-syntax--font-lock-buffer))
-          (erase-buffer)
-          (insert (format "(%s" (geiser-autodoc--proc-name proc module)))
-          (dolist (a args)
-            (insert " ")
-            (geiser-autodoc--insert-arg a current pos)
-            (setq current (1+ current)))
-          (insert ")")
-          (buffer-string))))))
+    (propertize str 'face 'geiser-font-lock-autodoc-procedure-name)))
+
+(defun geiser-autodoc--str (proc desc signature)
+  ;;  (message "composing %s with desc %s and signature %s" proc desc signature)
+  (let ((cpos 1)
+        (pos (second desc))
+        (prev (third desc))
+        (module (cdr (assoc 'module signature)))
+        (reqs (cdr (assoc 'required signature)))
+        (opts (cdr (assoc 'optional signature)))
+        (keys (cdr (assoc 'key signature))))
+    (save-current-buffer
+      (set-buffer (geiser-syntax--font-lock-buffer))
+      (erase-buffer)
+      (insert (format "(%s " (geiser-autodoc--proc-name proc module)))
+      (setq cpos
+            (geiser-autodoc--insert-args reqs cpos (and (not (zerop pos)) pos)))
+      (when opts
+        (insert " [")
+        (setq cpos (geiser-autodoc--insert-args opts cpos pos))
+        (when keys
+          (insert " [")
+          (geiser-autodoc--insert-args keys prev nil)
+          (insert "]"))
+        (insert "]"))
+      (insert ")")
+      (buffer-string))))
+
+(defun geiser-autodoc--autodoc (path)
+  (let* ((funs (nreverse (mapcar 'car path)))
+         (signs (geiser-autodoc--get-signatures funs)))
+    (when signs
+      (catch 'signature
+        (dolist (f funs)
+          (let ((signature (cdr (assq f signs))))
+            (when signature
+              (throw 'signature (geiser-autodoc--str f (assq f path) signature)))))))))
 
 
 ;;; Autodoc function:
 
 (defun geiser-autodoc--eldoc-function ()
   (condition-case e
-      (geiser-autodoc--function-args (geiser-syntax--get-partial-sexp))
+      (geiser-autodoc--autodoc (geiser-syntax--scan-sexps))
     (error (format "Autodoc not available (%s)" (error-message-string e)))))
 
 
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index db1c842..475a556 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -94,6 +94,33 @@
 (defsubst geiser-syntax--beginning-of-form ()
   (memq (char-after (point)) '(?\" ?\()))
 
+(defun geiser-syntax--scan-sexp ()
+  (let ((p (point))
+        (n -1)
+        prev
+        head)
+    (ignore-errors
+      (backward-up-list)
+      (save-excursion
+        (forward-char)
+        (skip-syntax-forward "^_w" p)
+        (when (setq head (symbol-at-point))
+          (while (< (point) p)
+            (setq n (1+ n))
+            (setq prev (symbol-at-point))
+            (forward-sexp))))
+      (if head (list head n prev) 'skip))))
+
+(defun geiser-syntax--scan-sexps ()
+  (save-excursion
+    (goto-char (or (nth 8 (syntax-ppss)) (point)))
+    (let* ((sap (symbol-at-point))
+           (path (and sap `((,sap 0))))
+           s)
+      (while (setq s (geiser-syntax--scan-sexp))
+        (when (listp s) (push s path)))
+      path)))
+
 (defun geiser-syntax--complete-partial-sexp (buffer begin end)
   (geiser-syntax--with-buffer
     (erase-buffer)
diff --git a/scheme/guile/geiser/doc.scm b/scheme/guile/geiser/doc.scm
index 3f060e3..d951f1c 100644
--- a/scheme/guile/geiser/doc.scm
+++ b/scheme/guile/geiser/doc.scm
@@ -37,76 +37,33 @@
   #:use-module (oop goops)
   #:use-module (srfi srfi-1))
 
-(define (autodoc form)
-  (cond ((null? form) #f)
-        ((symbol? form) (describe-application (list form)))
-        ((not (pair? form)) #f)
-        ((not (list? form)) (autodoc (pair->list form)))
-        ((define-head? form) => autodoc)
-        (else (autodoc/list form))))
-
-(define (autodoc/list form)
-  (let ((lst (last form)))
-    (cond ((and (symbol? lst) (describe-application (list lst))))
-          ((and (pair? lst) (not (memq (car lst) '(quote))) (autodoc lst)))
-          (else (describe-application form)))))
-
-(define (define-head? form)
-  (define defforms '(define define* define-macro define-macro*
-                      define-method define-class define-generic))
-  (and (= 2 (length form))
-       (memq (car form) defforms)
-       (car form)))
-
-(define (describe-application form)
-  (let* ((fun (car form))
-         (args (obj-args (symbol->object fun))))
+(define (autodoc ids)
+  (if (not (list? ids))
+      '()
+      (map (lambda (id) (or (autodoc* id) (list id))) ids)))
+
+(define (autodoc* id)
+  (let ((args (obj-args (symbol->object id))))
     (and args
-         (list (cons 'signature (signature fun args))
-               (cons 'position (find-position args form))
-               (cons 'module (symbol-module fun))))))
+         `(,@(signature id args)
+           (module . ,(symbol-module id))))))
 
 (define (object-signature name obj)
   (let ((args (obj-args obj)))
     (and args (signature name args))))
 
-(define (signature fun args)
-  (let ((req (arglst args 'required))
-        (opt (arglst args 'optional))
-        (key (arglst args 'keyword))
-        (rest (assq-ref args 'rest)))
-    (let ((sgn `(,fun ,@req
-                      ,@(if (not (null? opt)) (cons 'geiser-opt_marker opt) '())
-                      ,@(if (not (null? key)) (cons 'geiser-key_maker key) '()))))
-      (if rest `(,@sgn geiser-rest_marker ,rest) sgn))))
-
-(define (find-position args form)
-  (let* ((lf (length form))
-         (lf-1 (- lf 1)))
-    (if (= 1 lf) 0
-        (let ((req (length (arglst args 'required)))
-              (opt (length (arglst args 'optional)))
-              (keys (map (lambda (k) (symbol->keyword (if (list? k) (car k) k)))
-                         (arglst args 'keyword)))
-              (rest (assq-ref args 'rest)))
-          (cond ((<= lf (+ 1 req)) lf-1)
-                ((<= lf (+ 1 req opt)) (if (> opt 0) lf lf-1))
-                ((or (memq (last form) keys)
-                     (memq (car (take-right form 2)) keys)) =>
-                 (lambda (sl)
-                   (+ 2 req
-                      (if (> opt 0) (+ 1 opt) 0)
-                      (- (length keys) (length sl)))))
-                (else (+ 1 req
-                         (if (> opt 0) (+ 1 opt) 0)
-                         (if (null? keys) 0 (+ 1 (length keys)))
-                         (if rest 2 0))))))))
-
-(define (arglst args kind)
-  (let ((args (assq-ref args kind)))
-    (cond ((or (not args) (null? args)) '())
-          ((list? args) args)
-          (else (list args)))))
+(define (signature id args)
+  (define (arglst kind)
+    (let ((args (assq-ref args kind)))
+      (cond ((or (not args) (null? args)) '())
+            ((list? args) args)
+            (else (list args)))))
+  `(,id
+    (required ,@(arglst 'required))
+    (optional ,@(arglst 'optional)
+              ,@(let ((rest (assq-ref args 'rest)))
+                  (if rest (list "...") '())))
+    (key ,@(arglst 'keyword))))
 
 (define (obj-args obj)
   (cond ((not obj) #f)
diff --git a/scheme/plt/geiser/autodoc.ss b/scheme/plt/geiser/autodoc.ss
index 6607a94..2fe3a83 100644
--- a/scheme/plt/geiser/autodoc.ss
+++ b/scheme/plt/geiser/autodoc.ss
@@ -31,39 +31,32 @@
                           (eval `(help ,symbol #:from ,mod)))))
     (eval `(help ,symbol))))
 
-(define (autodoc form)
-  (cond ((null? form) #f)
-        ((symbol? form) (describe-application (list form)))
-        ((not (pair? form)) #f)
-        ((not (list? form)) (autodoc (pair->list form)))
-        ((define-head? form) => autodoc)
-        (else (autodoc/list form))))
-
-(define (autodoc/list form)
-  (let ((lst (last form)))
-    (cond ((and (symbol? lst) (describe-application (list lst))))
-          ((and (pair? lst) (not (memq (car lst) '(quote))) (autodoc lst)))
-          (else (describe-application form)))))
-
-(define (define-head? form)
-  (define defforms '(-define
-                     define define-values
-                     define-method define-class define-generic define-struct
-                     define-syntax define-syntaxes -define-syntax))
-  (and (= 2 (length form))
-       (memq (car form) defforms)
-       (car form)))
-
-(define (describe-application form)
-  (let* ((fun (car form))
-         (loc (symbol-location* fun))
-         (name (car loc))
-         (path (cdr loc))
-         (sgn (and path (find-signature path name fun))))
-    (and sgn
-         (list (cons 'signature (format-signature fun sgn))
-               (cons 'position (find-position sgn form))
-               (cons 'module (module-path-name->name path))))))
+(define (autodoc ids)
+  (if (not (list? ids))
+      '()
+      (map (lambda (id) (or (autodoc* id) (list id))) ids)))
+
+(define (autodoc* id)
+  (and
+   (symbol? id)
+   (let* ((loc (symbol-location* id))
+          (name (car loc))
+          (path (cdr loc))
+          (sgn (and path (find-signature path name id))))
+     (and sgn
+          `(,id
+            (name . ,name)
+            ,@(format-signature sgn)
+            (module . ,(module-path-name->name path)))))))
+
+(define (format-signature sign)
+  (if (signature? sign)
+      `((required ,@(signature-required sign))
+        (optional ,@(signature-optional sign)
+                  ,@(let ((rest (signature-rest sign)))
+                      (if rest (list "...") '())))
+        (key ,@(signature-keys sign)))
+      '()))
 
 (define signatures (make-hash))
 
@@ -167,44 +160,6 @@
                 (opt-no (- max-val min-val)))
            (make-signature (args 0 min-val) (args min-val opt-no) '() #f)))))
 
-(define (format-signature fun sign)
- (cond ((symbol? sign) (cons fun sign))
-       ((signature? sign)
-        (let ((req (signature-required sign))
-              (opt (signature-optional sign))
-              (keys (signature-keys sign))
-              (rest (signature-rest sign)))
-          `(,fun
-            ,@req
-            ,@(if (null? opt) opt (cons 'geiser-opt_marker opt))
-            ,@(if (null? keys) keys (cons 'geiser-key_maker keys))
-            ,@(if rest (list 'geiser-rest_marker rest) '()))))
-       (else #f)))
-
-(define (find-position sign form)
-  (if (signature? sign)
-      (let* ((lf (length form))
-             (lf-1 (- lf 1)))
-        (if (= 1 lf) 0
-            (let ((req (length (signature-required sign)))
-                  (opt (length (signature-optional sign)))
-                  (keys (map (lambda (k) (symbol->keyword (if (list? k) (car k) k)))
-                             (signature-keys sign)))
-                  (rest (signature-rest sign)))
-              (cond ((<= lf (+ 1 req)) lf-1)
-                    ((<= lf (+ 1 req opt)) (if (> opt 0) lf lf-1))
-                    ((or (memq (last form) keys)
-                         (memq (car (take-right form 2)) keys)) =>
-                         (lambda (sl)
-                           (+ 2 req
-                              (if (> opt 0) (+ 1 opt) 0)
-                              (- (length keys) (length sl)))))
-                    (else (+ 1 req
-                             (if (> opt 0) (+ 1 opt) 0)
-                             (if (null? keys) 0 (+ 1 (length keys)))
-                             (if rest 2 0)))))))
-      0))
-
 (define (update-module-cache path . form)
   (when (and (string? path)
              (or (null? form)
-- 
cgit v1.2.3


From 18db590dece0f88c3f2bd850a3158bb50605e2c6 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Mon, 17 Aug 2009 16:23:45 +0200
Subject: Well, i said that it was better, not that it was perfect.

Autodoc buglets and support for displaying module variables too.
---
 elisp/geiser-autodoc.el      | 54 ++++++++++++++++++++++----------------------
 elisp/geiser-doc.el          |  5 +++-
 elisp/geiser-syntax.el       | 20 ++++++++--------
 scheme/guile/geiser/doc.scm  | 16 ++++++++-----
 scheme/plt/geiser/autodoc.ss |  6 ++---
 5 files changed, 54 insertions(+), 47 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-autodoc.el b/elisp/geiser-autodoc.el
index 16ca9ac..1d876dd 100644
--- a/elisp/geiser-autodoc.el
+++ b/elisp/geiser-autodoc.el
@@ -79,8 +79,7 @@ when `geiser-autodoc-display-module-p' is on."
               (push f missing)))))
       (unless cached
         (setq geiser-autodoc--cached-signatures nil))
-      (if (not missing)
-          geiser-autodoc--cached-signatures
+      (if (not missing) geiser-autodoc--cached-signatures
         (let ((res (geiser-eval--send/result `(:eval ((:ge autodoc)
                                                       (quote ,missing)))
                                              500)))
@@ -111,33 +110,34 @@ when `geiser-autodoc-display-module-p' is on."
     (propertize str 'face 'geiser-font-lock-autodoc-procedure-name)))
 
 (defun geiser-autodoc--str (proc desc signature)
-  ;;  (message "composing %s with desc %s and signature %s" proc desc signature)
-  (let ((cpos 1)
-        (pos (second desc))
-        (prev (third desc))
-        (module (cdr (assoc 'module signature)))
-        (reqs (cdr (assoc 'required signature)))
-        (opts (cdr (assoc 'optional signature)))
-        (keys (cdr (assoc 'key signature))))
-    (save-current-buffer
-      (set-buffer (geiser-syntax--font-lock-buffer))
-      (erase-buffer)
-      (insert (format "(%s " (geiser-autodoc--proc-name proc module)))
-      (setq cpos
-            (geiser-autodoc--insert-args reqs cpos (and (not (zerop pos)) pos)))
-      (when opts
-        (insert " [")
-        (setq cpos (geiser-autodoc--insert-args opts cpos pos))
-        (when keys
-          (insert " [")
-          (geiser-autodoc--insert-args keys prev nil)
-          (insert "]"))
-        (insert "]"))
-      (insert ")")
-      (buffer-string))))
+  (let ((args (cdr (assoc 'args signature)))
+        (module (cdr (assoc 'module signature))))
+    (if (not args) (geiser-autodoc--proc-name proc module)
+      (let ((cpos 1)
+            (pos (or (second desc) 0))
+            (prev (third desc))
+            (reqs (cdr (assoc 'required args)))
+            (opts (cdr (assoc 'optional args)))
+            (keys (cdr (assoc 'key args))))
+        (save-current-buffer
+          (set-buffer (geiser-syntax--font-lock-buffer))
+          (erase-buffer)
+          (insert (format "(%s " (geiser-autodoc--proc-name proc module)))
+          (setq cpos
+                (geiser-autodoc--insert-args reqs cpos (and (not (zerop pos)) pos)))
+          (when opts
+            (insert " [")
+            (setq cpos (geiser-autodoc--insert-args opts cpos pos))
+            (when keys
+              (insert " [")
+              (geiser-autodoc--insert-args keys prev nil)
+              (insert "]"))
+            (insert "]"))
+          (insert ")")
+          (buffer-string))))))
 
 (defun geiser-autodoc--autodoc (path)
-  (let* ((funs (nreverse (mapcar 'car path)))
+  (let* ((funs (mapcar 'car path))
          (signs (geiser-autodoc--get-signatures funs)))
     (when signs
       (catch 'signature
diff --git a/elisp/geiser-doc.el b/elisp/geiser-doc.el
index adef4c6..61c50f5 100644
--- a/elisp/geiser-doc.el
+++ b/elisp/geiser-doc.el
@@ -26,6 +26,7 @@
 
 (require 'geiser-impl)
 (require 'geiser-completion)
+(require 'geiser-autodoc)
 (require 'geiser-eval)
 (require 'geiser-syntax)
 (require 'geiser-popup)
@@ -174,7 +175,9 @@
             (message "No documentation available for '%s'" symbol)
           (geiser-doc--with-buffer
             (erase-buffer)
-            (geiser-doc--insert-title (cdr (assoc 'signature ds)))
+            (geiser-doc--insert-title (geiser-autodoc--str (format "%s" symbol)
+                                                           nil
+                                                           (cdr (assoc 'signature ds))))
             (newline)
             (insert (or (cdr (assoc 'docstring ds)) ""))
             (goto-line (point-min))
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 475a556..6cadf61 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -97,29 +97,31 @@
 (defun geiser-syntax--scan-sexp ()
   (let ((p (point))
         (n -1)
-        prev
-        head)
+        prev head)
     (ignore-errors
       (backward-up-list)
       (save-excursion
         (forward-char)
-        (skip-syntax-forward "^_w" p)
+        (skip-syntax-forward "^_w(" p)
         (when (setq head (symbol-at-point))
           (while (< (point) p)
             (setq n (1+ n))
             (setq prev (symbol-at-point))
             (forward-sexp))))
-      (if head (list head n prev) 'skip))))
+      (if head (list head n (and (> n 1) prev)) 'skip))))
 
 (defun geiser-syntax--scan-sexps ()
   (save-excursion
     (goto-char (or (nth 8 (syntax-ppss)) (point)))
     (let* ((sap (symbol-at-point))
-           (path (and sap `((,sap 0))))
-           s)
-      (while (setq s (geiser-syntax--scan-sexp))
-        (when (listp s) (push s path)))
-      path)))
+           (fst (and sap (geiser-syntax--scan-sexp)))
+           (path (and fst
+                      (cond ((not (listp fst)) `((,sap 0)))
+                             ((eq sap (car fst)) (list fst))
+                             (t (list fst (list sap 0)))))))
+      (while (setq fst (geiser-syntax--scan-sexp))
+        (when (listp fst) (push fst path)))
+      (nreverse path))))
 
 (defun geiser-syntax--complete-partial-sexp (buffer begin end)
   (geiser-syntax--with-buffer
diff --git a/scheme/guile/geiser/doc.scm b/scheme/guile/geiser/doc.scm
index d951f1c..bc4acd9 100644
--- a/scheme/guile/geiser/doc.scm
+++ b/scheme/guile/geiser/doc.scm
@@ -37,6 +37,8 @@
   #:use-module (oop goops)
   #:use-module (srfi srfi-1))
 
+(define *an-object* #t)
+
 (define (autodoc ids)
   (if (not (list? ids))
       '()
@@ -59,17 +61,19 @@
             ((list? args) args)
             (else (list args)))))
   `(,id
-    (required ,@(arglst 'required))
-    (optional ,@(arglst 'optional)
-              ,@(let ((rest (assq-ref args 'rest)))
-                  (if rest (list "...") '())))
-    (key ,@(arglst 'keyword))))
+    (args ,@(if (list? args)
+                `((required ,@(arglst 'required))
+                  (optional ,@(arglst 'optional)
+                            ,@(let ((rest (assq-ref args 'rest)))
+                                (if rest (list "...") '())))
+                  (key ,@(arglst 'keyword)))
+                '()))))
 
 (define (obj-args obj)
   (cond ((not obj) #f)
         ((or (procedure? obj) (program? obj)) (arguments obj))
         ((macro? obj) (or (obj-args (macro-transformer obj)) '((required ...))))
-        (else #f)))
+        (else 'variable)))
 
 (define (arguments proc)
   (cond
diff --git a/scheme/plt/geiser/autodoc.ss b/scheme/plt/geiser/autodoc.ss
index 2fe3a83..c43f8c9 100644
--- a/scheme/plt/geiser/autodoc.ss
+++ b/scheme/plt/geiser/autodoc.ss
@@ -46,7 +46,7 @@
      (and sgn
           `(,id
             (name . ,name)
-            ,@(format-signature sgn)
+            (args ,@(format-signature sgn))
             (module . ,(module-path-name->name path)))))))
 
 (define (format-signature sign)
@@ -64,9 +64,7 @@
 
 (define (find-signature path name local-name)
   (let ((path (if (path? path) (path->string path) path)))
-    (hash-ref! (hash-ref! signatures
-                          path
-                          (lambda () (parse-signatures path)))
+    (hash-ref! (hash-ref! signatures path (lambda () (parse-signatures path)))
                name
                (lambda () (infer-signature local-name)))))
 
-- 
cgit v1.2.3


From 5a7373cd2da209e8a58b35060c0b29bd18398957 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Tue, 18 Aug 2009 06:16:57 +0200
Subject: Yet another deklugdification: locals scanning moved to elisp.

... and say goodbye to the ugly parse partial sexp, reducing not only
sloppy code, but also duplication and data transfers.
---
 elisp/geiser-completion.el         |   5 +-
 elisp/geiser-syntax.el             | 101 +++++++++++++++++++------------------
 scheme/guile/geiser/completion.scm |  25 ++-------
 scheme/plt/geiser/completions.ss   |  27 ++--------
 4 files changed, 62 insertions(+), 96 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-completion.el b/elisp/geiser-completion.el
index 799280e..28aef12 100644
--- a/elisp/geiser-completion.el
+++ b/elisp/geiser-completion.el
@@ -148,9 +148,8 @@ terminates a current completion."
 
 (defsubst geiser-completion--symbol-list (prefix)
   (delete-duplicates
-   (geiser-eval--send/result
-    `(:eval ((:ge completions) ,prefix
-             (quote (:scm ,(or (geiser-syntax--get-partial-sexp) "()"))))))
+   (append (mapcar (lambda (s) (format "%s" s)) (geiser-syntax--locals-around-point))
+           (geiser-eval--send/result `(:eval ((:ge completions) ,prefix))))
    :test 'string=))
 
 (defsubst geiser-completion--module-list (prefix)
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 6cadf61..6af04a1 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -84,15 +84,11 @@
 
 (geiser-popup--define syntax " *geiser syntax analyst*" scheme-mode)
 
-(defsubst geiser-syntax--del-sexp (arg)
-  (let ((p (point)))
-    (forward-sexp arg)
-    (delete-region p (point))))
+(defsubst geiser-syntax--skip-comment/string ()
+  (goto-char (or (nth 8 (syntax-ppss)) (point))))
 
-(defconst geiser-syntax--placeholder (format "___%s___" (random 100)))
-
-(defsubst geiser-syntax--beginning-of-form ()
-  (memq (char-after (point)) '(?\" ?\()))
+(defsubst geiser-syntax--nesting-level ()
+  (or (nth 0 (syntax-ppss)) 0))
 
 (defun geiser-syntax--scan-sexp ()
   (let ((p (point))
@@ -112,7 +108,7 @@
 
 (defun geiser-syntax--scan-sexps ()
   (save-excursion
-    (goto-char (or (nth 8 (syntax-ppss)) (point)))
+    (geiser-syntax--skip-comment/string)
     (let* ((sap (symbol-at-point))
            (fst (and sap (geiser-syntax--scan-sexp)))
            (path (and fst
@@ -123,46 +119,55 @@
         (when (listp fst) (push fst path)))
       (nreverse path))))
 
-(defun geiser-syntax--complete-partial-sexp (buffer begin end)
-  (geiser-syntax--with-buffer
-    (erase-buffer)
-    (insert-buffer-substring-no-properties buffer begin end)
-    (when (not (geiser-syntax--beginning-of-form))
-      (skip-syntax-backward "-<>")
-      (delete-region (point) (point-max)))
-    (let ((p (nth 8 (syntax-ppss))))
-      (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)
-                ((geiser-syntax--beginning-of-form)
-                 (delete-region (point) (point-max)) t)
-                ((memq (char-after (1- (point))) (list ?. ?@ ?, ?\' ?\` ?\# ?\\))
-                 (skip-syntax-backward "^-(")
-                 (delete-region (point) (point-max))
-                 t))
-      (insert geiser-syntax--placeholder))
+(defun geiser-syntax--read-list (p)
+  (let ((list (ignore-errors (read (current-buffer)))))
+    (if (and list (< (point) p))
+        list
+      (goto-char p)
+      nil)))
+
+(defconst geiser-syntax--delim-regexp "\\(?:[\s-\s<\s>$\n]+\\)")
+
+(defconst geiser-syntax--ident-regexp
+  (format "\\(?:%s\\([^ (]+?\\)\\)" geiser-syntax--delim-regexp))
+
+(defconst geiser-syntax--let-regexp
+  (format "\\=(let\\(?:\\*\\|rec\\|%s\\|%s\\)%s*("
+          geiser-syntax--ident-regexp
+          geiser-syntax--delim-regexp
+          geiser-syntax--delim-regexp))
+
+(defconst geiser-syntax--ldefine-regexp
+  (format "\\=(define%s%s" geiser-syntax--ident-regexp geiser-syntax--delim-regexp))
+
+(defconst geiser-syntax--define-regexp
+  (format "\\=(\\(?:define\\|lambda\\)%s(" geiser-syntax--delim-regexp))
+
+(defun geiser-syntax--locals-around-point ()
+  (when (eq major-mode 'scheme-mode)
     (save-excursion
-      (goto-char (point-min))
-      (while (re-search-forward "[.@,'`#\\\\]" nil t)
-        (replace-match "" nil nil))
-      (goto-char (point-min))
-      (while (re-search-forward "\\[" nil t)
-        (replace-match "(" nil nil))
-      (goto-char (point-min))
-      (while (re-search-forward "\\]" nil t)
-        (replace-match ")" nil nil)))
-    (let ((depth (nth 0 (parse-partial-sexp (point-min) (point)))))
-      (unless (zerop depth) (insert (make-string depth ?\)))))
-    (when (< (point-min) (point)) (buffer-substring (point-min) (point)))))
-
-(defsubst geiser-syntax--get-partial-sexp ()
-  (unless (zerop (nth 0 (syntax-ppss)))
-    (let* ((end (if (geiser-syntax--beginning-of-form) (1+ (point))
-                  (save-excursion (skip-syntax-forward "^-\"<>()") (point))))
-           (begin (save-excursion (beginning-of-defun) (point))))
-      (geiser-syntax--complete-partial-sexp (current-buffer) begin end))))
+      (geiser-syntax--skip-comment/string)
+      (let ((ids))
+        (while (not (zerop (geiser-syntax--nesting-level)))
+          (let ((p (point)))
+            (backward-up-list)
+            (save-excursion
+              (while (< (point) p)
+                (cond ((re-search-forward geiser-syntax--let-regexp p t)
+                       (when (match-string 1) (push (intern (match-string 1)) ids))
+                       (backward-char 1)
+                       (dolist (l (nreverse (geiser-syntax--read-list p)))
+                         (when (and (listp l) (symbolp (car l)))
+                           (push (car l) ids))))
+                      ((re-search-forward geiser-syntax--ldefine-regexp p t)
+                       (when (match-string 1) (push (intern (match-string 1)) ids)))
+                      ((re-search-forward geiser-syntax--define-regexp p t)
+                       (backward-char 1)
+                       (dolist (s (nreverse (geiser-syntax--read-list p)))
+                         (let ((sn (if (listp s) (car s) s)))
+                           (when (symbolp sn) (push sn ids)))))
+                      (t (goto-char (1+ p))))))))
+        (nreverse ids)))))
 
 
 ;;; Fontify strings as Scheme code:
diff --git a/scheme/guile/geiser/completion.scm b/scheme/guile/geiser/completion.scm
index f4342bb..564b8f5 100644
--- a/scheme/guile/geiser/completion.scm
+++ b/scheme/guile/geiser/completion.scm
@@ -31,28 +31,9 @@
   #:use-module (ice-9 session)
   #:use-module (ice-9 regex))
 
-(define (completions prefix . context)
-  (let ((context (and (not (null? context)) (car context)))
-        (prefix (string-append "^" (regexp-quote prefix))))
-    (append (filter (lambda (s) (string-match prefix s))
-                    (map symbol->string (local-bindings context)))
-            (sort! (map symbol->string (apropos-internal prefix)) string<?))))
-
-(define (local-bindings form)
-  (define (body f) (if (> (length f) 2) (cddr f) '()))
-  (let loop ((form form) (bindings '()))
-    (cond ((not (pair? form)) bindings)
-          ((list? (car form))
-           (loop (cdr form) (append (local-bindings (car form)) bindings)))
-          ((and (list? form) (< (length form) 2)) bindings)
-          ((memq (car form) '(define define* lambda))
-           (loop (body form) (append (pair->list (cadr form)) bindings)))
-          ((and (memq (car form) '(let let* letrec letrec*))
-                (list? (cadr form)))
-           (loop (body form) (append (map car (cadr form)) bindings)))
-          ((and (eq? 'let (car form)) (symbol? (cadr form)))
-           (loop (cons 'let (body form)) (cons (cadr form) bindings)))
-          (else (loop (cdr form) bindings)))))
+(define (completions prefix)
+  (let ((prefix (string-append "^" (regexp-quote prefix))))
+    (sort! (map symbol->string (apropos-internal prefix)) string<?)))
 
 (define (module-completions prefix)
   (let* ((prefix (string-append "^" (regexp-quote prefix)))
diff --git a/scheme/plt/geiser/completions.ss b/scheme/plt/geiser/completions.ss
index 4537feb..15bc081 100644
--- a/scheme/plt/geiser/completions.ss
+++ b/scheme/plt/geiser/completions.ss
@@ -35,29 +35,10 @@
   (filter (lambda (s) (string-prefix? prefix s))
           (if sort? (sort lst string<?) lst)))
 
-(define (symbol-completions prefix (context #f))
-  (append (filter-prefix prefix
-                         (map symbol->string (local-bindings context))
-                         #f)
-          (filter-prefix prefix
-                         (map symbol->string (namespace-mapped-symbols))
-                         #t)))
-
-(define (local-bindings form)
-  (define (body f) (if (> (length f) 2) (cddr f) '()))
-  (let loop ((form form) (bindings '()))
-    (cond ((not (pair? form)) bindings)
-          ((list? (car form))
-           (loop (cdr form) (append (local-bindings (car form)) bindings)))
-          ((and (list? form) (< (length form) 2)) bindings)
-          ((memq (car form) '(define define* lambda))
-           (loop (body form) (append (pair->list (cadr form)) bindings)))
-          ((and (memq (car form) '(let let* letrec letrec*))
-                (list? (cadr form)))
-           (loop (body form) (append (map car (cadr form)) bindings)))
-          ((and (eq? 'let (car form)) (symbol? (cadr form)))
-           (loop (cons 'let (body form)) (cons (cadr form) bindings)))
-          (else (loop (cdr form) bindings)))))
+(define (symbol-completions prefix)
+  (filter-prefix prefix
+                 (map symbol->string (namespace-mapped-symbols))
+                 #t))
 
 (define (module-completions prefix)
   (filter-prefix prefix (module-list) #f))
-- 
cgit v1.2.3


From f8760a999fc89f79d9570029b9ec593316add2f9 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Thu, 20 Aug 2009 02:58:01 +0200
Subject: Bug fix: bogus regexp.

---
 elisp/geiser-syntax.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 6af04a1..38bb76c 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -126,7 +126,7 @@
       (goto-char p)
       nil)))
 
-(defconst geiser-syntax--delim-regexp "\\(?:[\s-\s<\s>$\n]+\\)")
+(defconst geiser-syntax--delim-regexp "\\(?:[\\s-\\s<\\s>$\n]+\\)")
 
 (defconst geiser-syntax--ident-regexp
   (format "\\(?:%s\\([^ (]+?\\)\\)" geiser-syntax--delim-regexp))
-- 
cgit v1.2.3


From 479493f40a1666cc7fb2de8f855badc7106b762b Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Mon, 24 Aug 2009 03:22:12 +0200
Subject: Taking into account those ugly square brackets while scanning locals.

---
 elisp/geiser-syntax.el | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 38bb76c..789b6e9 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -119,29 +119,35 @@
         (when (listp fst) (push fst path)))
       (nreverse path))))
 
+(defsubst geiser-syntax--listify (l &optional strict)
+  (cond ((vectorp l) (append l nil))
+        ((listp l) l)
+        (strict nil)
+        (t l)))
+
 (defun geiser-syntax--read-list (p)
-  (let ((list (ignore-errors (read (current-buffer)))))
+  (let ((list (geiser-syntax--listify (ignore-errors (read (current-buffer))) t)))
     (if (and list (< (point) p))
-        list
+        (mapcar 'geiser-syntax--listify list)
       (goto-char p)
       nil)))
 
-(defconst geiser-syntax--delim-regexp "\\(?:[\\s-\\s<\\s>$\n]+\\)")
+(defconst geiser-syntax--delim-regexp "\\(?:\\s-\\|\\s<\\|\\s>\\|$\\|\n\\)+")
 
 (defconst geiser-syntax--ident-regexp
-  (format "\\(?:%s\\([^ (]+?\\)\\)" geiser-syntax--delim-regexp))
+  (format "\\(?:%s\\([^[ (]+?\\)\\)" geiser-syntax--delim-regexp))
 
 (defconst geiser-syntax--let-regexp
-  (format "\\=(let\\(?:\\*\\|rec\\|%s\\|%s\\)%s*("
+  (format "\\=[[(]let\\(?:\\*\\|rec\\|%s\\|%s\\)%s*[[(]"
           geiser-syntax--ident-regexp
           geiser-syntax--delim-regexp
           geiser-syntax--delim-regexp))
 
 (defconst geiser-syntax--ldefine-regexp
-  (format "\\=(define%s%s" geiser-syntax--ident-regexp geiser-syntax--delim-regexp))
+  (format "\\=[[(]define%s%s" geiser-syntax--ident-regexp geiser-syntax--delim-regexp))
 
 (defconst geiser-syntax--define-regexp
-  (format "\\=(\\(?:define\\|lambda\\)%s(" geiser-syntax--delim-regexp))
+  (format "\\=[[(]\\(?:define\\|lambda\\)%s[[(]" geiser-syntax--delim-regexp))
 
 (defun geiser-syntax--locals-around-point ()
   (when (eq major-mode 'scheme-mode)
-- 
cgit v1.2.3


From b75fa717536a55a7571abfd1aafe53bc73bb5363 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Thu, 27 Aug 2009 00:05:13 +0200
Subject: Better detection of locals (internal defines).

 - The implementation is still buggy, though, because it uses the
   elisp reader, which bails at some scheme syntaxes (e.g. chars)
---
 elisp/geiser-syntax.el | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 789b6e9..937107b 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -144,10 +144,13 @@
           geiser-syntax--delim-regexp))
 
 (defconst geiser-syntax--ldefine-regexp
-  (format "\\=[[(]define%s%s" geiser-syntax--ident-regexp geiser-syntax--delim-regexp))
+  (format "[[(]define%s%s" geiser-syntax--ident-regexp geiser-syntax--delim-regexp))
 
 (defconst geiser-syntax--define-regexp
-  (format "\\=[[(]\\(?:define\\|lambda\\)%s[[(]" geiser-syntax--delim-regexp))
+  (format "[[(]\\(?:define\\)%s[[(]" geiser-syntax--delim-regexp))
+
+(defconst geiser-syntax--lambda-regexp
+  (format "[[(]\\(?:lambda\\)%s[[(]" geiser-syntax--delim-regexp))
 
 (defun geiser-syntax--locals-around-point ()
   (when (eq major-mode 'scheme-mode)
@@ -165,13 +168,21 @@
                        (dolist (l (nreverse (geiser-syntax--read-list p)))
                          (when (and (listp l) (symbolp (car l)))
                            (push (car l) ids))))
+                      ((looking-at geiser-syntax--ldefine-regexp)
+                       (when (match-string 1) (push (intern (match-string 1)) ids))
+                       (goto-char (min p (match-end 0))))
+                      ((or (looking-at geiser-syntax--define-regexp)
+                           (looking-at geiser-syntax--lambda-regexp))
+                       (goto-char (min p (1- (match-end 0))))
+                       (dolist (s (nreverse (geiser-syntax--read-list p)))
+                         (let ((sn (if (listp s) (car s) s)))
+                           (when (symbolp sn) (push sn ids)))))
                       ((re-search-forward geiser-syntax--ldefine-regexp p t)
                        (when (match-string 1) (push (intern (match-string 1)) ids)))
                       ((re-search-forward geiser-syntax--define-regexp p t)
                        (backward-char 1)
-                       (dolist (s (nreverse (geiser-syntax--read-list p)))
-                         (let ((sn (if (listp s) (car s) s)))
-                           (when (symbolp sn) (push sn ids)))))
+                       (let ((s (car (geiser-syntax--read-list p))))
+                         (when (symbolp s) (push s ids))))
                       (t (goto-char (1+ p))))))))
         (nreverse ids)))))
 
-- 
cgit v1.2.3


From 2c6f07d95935668a82bbd549901da6d0949fbbe7 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Sun, 30 Aug 2009 11:19:09 +0200
Subject: Biting the bullet: a simple, permissive, scheme reader.

Currently put to (let's hope, good) use for context parsing in autodoc
and locals discovery (internal defines are recognised now).
---
 elisp/geiser-autodoc.el |   9 ++-
 elisp/geiser-syntax.el  | 209 ++++++++++++++++++++++++++++--------------------
 2 files changed, 128 insertions(+), 90 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-autodoc.el b/elisp/geiser-autodoc.el
index e00f6b6..75f2e7c 100644
--- a/elisp/geiser-autodoc.el
+++ b/elisp/geiser-autodoc.el
@@ -71,8 +71,7 @@ when `geiser-autodoc-display-module-p' is on."
 (defun geiser-autodoc--get-signatures (funs &optional keep-cached)
   (when funs
     (let ((fs (assq (car funs) geiser-autodoc--cached-signatures)))
-      (if fs
-          (list fs)
+      (unless fs
         (let ((missing) (cached))
           (if (not geiser-autodoc--cached-signatures)
               (setq missing funs)
@@ -88,8 +87,10 @@ when `geiser-autodoc-display-module-p' is on."
                                                  500)))
               (when res
                 (setq geiser-autodoc--cached-signatures
-                      (append res (if keep-cached geiser-autodoc--cached-signatures cached))))))
-          geiser-autodoc--cached-signatures)))))
+                      (append res (if keep-cached
+                                      geiser-autodoc--cached-signatures
+                                    cached))))))))
+      geiser-autodoc--cached-signatures)))
 
 (defun geiser-autodoc--insert-args (args current &optional pos)
   (dolist (a args)
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 937107b..5cfbc32 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -80,9 +80,89 @@
  (with-syntax 1))
 
 
-;;; Code parsing:
+;;; A simple scheme reader
+
+(defvar geiser-syntax--read/buffer-limit nil)
+
+(defsubst geiser-syntax--read/eos ()
+  (or (eobp)
+      (and (numberp geiser-syntax--read/buffer-limit)
+           (<= geiser-syntax--read/buffer-limit (point)))))
+
+(defsubst geiser-syntax--read/next-char ()
+  (unless (geiser-syntax--read/eos)
+    (forward-char)
+    (char-after)))
+
+(defsubst geiser-syntax--read/token (token)
+  (geiser-syntax--read/next-char)
+  (if (listp token) token (list token)))
+
+(defsubst geiser-syntax--read/elisp ()
+  (ignore-errors (read (current-buffer))))
+
+(defun geiser-syntax--read/next-token ()
+  (skip-syntax-forward "->")
+  (if (geiser-syntax--read/eos) '(eob)
+    (let ((c (char-after)))
+      (cond ((not c) '(eob))
+            ((eq c '\;)
+             (skip-syntax-forward "^>")
+             (geiser-syntax--read/next-token))
+            ((memq c '(?\( ?\[)) (geiser-syntax--read/token 'lparen))
+            ((memq c '(?\) ?\])) (geiser-syntax--read/token 'rparen))
+            ((eq c ?.)
+             (if (memq (syntax-after (1+ (point))) '(0 11 12))
+                 (geiser-syntax--read/token 'dot)
+               (cons 'atom (geiser-syntax--read/elisp))))
+            ((eq c ?\#)
+             (let ((c (geiser-syntax--read/next-char)))
+               (cond ((not c) '(eob))
+                     ((eq c ?\\) (cons 'char (geiser-syntax--read/elisp)))
+                     ((eq c ?\() (geiser-syntax--read/token 'vectorb))
+                     (t (geiser-syntax--read/next-token)))))
+            ((eq c ?\') (geiser-syntax--read/token '(quote . quote)))
+            ((eq c ?\`) (geiser-syntax--read/token
+                         `(backquote . ,backquote-backquote-symbol)))
+            ((eq c ?,) (if (eq (geiser-syntax--read/next-char) ?@)
+                           (geiser-syntax--read/token
+                            `(splice . ,backquote-splice-symbol))
+                         `(unquote . ,backquote-unquote-symbol)))
+            ((eq c ?\") (cons 'string (geiser-syntax--read/elisp)))
+            (t (cons 'atom (geiser-syntax--read/elisp)))))))
+
+(defsubst geiser-syntax--read/match (&rest tks)
+  (let ((token (geiser-syntax--read/next-token)))
+    (if (memq (car token) tks) token
+      (error "Unexpected token: %s" token))))
+
+(defsubst geiser-syntax--read/try (&rest tks)
+  (let ((p (point))
+        (tk (ignore-errors (apply 'geiser-syntax--read/match tks))))
+    (unless tk (goto-char p))
+    tk))
+
+(defun geiser-syntax--read/list ()
+  (cond ((geiser-syntax--read/try 'dot)
+         (let ((tail (geiser-syntax--read)))
+           (geiser-syntax--read/match 'eob 'rparen)
+           tail))
+        ((geiser-syntax--read/try 'rparen 'eob) nil)
+        (t (cons (geiser-syntax--read)
+                 (geiser-syntax--read/list)))))
+
+(defun geiser-syntax--read ()
+  (let ((token (geiser-syntax--read/next-token)))
+    (case (car token)
+      (eob nil)
+      (lparen (geiser-syntax--read/list))
+      (vectorb (apply 'vector (geiser-syntax--read/list)))
+      ((quote backquote unquote splice) (list (cdr token) (geiser-syntax--read)))
+      ((char string atom) (cdr token))
+      (t (error "Reading scheme syntax: unexpected token: %s" token)))))
 
-(geiser-popup--define syntax " *geiser syntax analyst*" scheme-mode)
+
+;;; Code parsing:
 
 (defsubst geiser-syntax--skip-comment/string ()
   (goto-char (or (nth 8 (syntax-ppss)) (point))))
@@ -90,105 +170,62 @@
 (defsubst geiser-syntax--nesting-level ()
   (or (nth 0 (syntax-ppss)) 0))
 
-(defun geiser-syntax--scan-sexp ()
-  (let ((p (point))
-        (n -1)
-        prev head)
-    (ignore-errors
-      (backward-up-list)
-      (save-excursion
-        (forward-char)
-        (skip-syntax-forward "^_w(" p)
-        (when (setq head (symbol-at-point))
-          (while (< (point) p)
-            (setq n (1+ n))
-            (setq prev (symbol-at-point))
-            (forward-sexp))))
-      (if head (list head n (and (> n 1) prev)) 'skip))))
-
 (defun geiser-syntax--scan-sexps ()
   (save-excursion
-    (geiser-syntax--skip-comment/string)
-    (let* ((sap (symbol-at-point))
-           (fst (and sap (geiser-syntax--scan-sexp)))
-           (path (and fst
-                      (cond ((not (listp fst)) `((,sap 0)))
-                             ((eq sap (car fst)) (list fst))
-                             (t (list fst (list sap 0)))))))
-      (while (setq fst (geiser-syntax--scan-sexp))
-        (when (listp fst) (push fst path)))
+    (let* ((fst (symbol-at-point))
+           (path (and fst (list (list fst 0)))))
+      (while (not (zerop (geiser-syntax--nesting-level)))
+        (let ((geiser-syntax--read/buffer-limit (1+ (point))))
+          (backward-up-list)
+          (let ((form (save-excursion (geiser-syntax--read))))
+            (when (and (listp form) (car form) (symbolp (car form)))
+              (let* ((len-1 (1- (length form)))
+                     (prev (and (> len-1 1) (nth (1- len-1) form))))
+                (push `(,(car form) ,len-1 ,@(and prev (symbolp prev) (list prev)))
+                      path))))))
       (nreverse path))))
 
-(defsubst geiser-syntax--listify (l &optional strict)
-  (cond ((vectorp l) (append l nil))
-        ((listp l) l)
-        (strict nil)
-        (t l)))
-
-(defun geiser-syntax--read-list (p)
-  (let ((list (geiser-syntax--listify (ignore-errors (read (current-buffer))) t)))
-    (if (and list (< (point) p))
-        (mapcar 'geiser-syntax--listify list)
-      (goto-char p)
-      nil)))
-
-(defconst geiser-syntax--delim-regexp "\\(?:\\s-\\|\\s<\\|\\s>\\|$\\|\n\\)+")
-
-(defconst geiser-syntax--ident-regexp
-  (format "\\(?:%s\\([^[ (]+?\\)\\)" geiser-syntax--delim-regexp))
-
-(defconst geiser-syntax--let-regexp
-  (format "\\=[[(]let\\(?:\\*\\|rec\\|%s\\|%s\\)%s*[[(]"
-          geiser-syntax--ident-regexp
-          geiser-syntax--delim-regexp
-          geiser-syntax--delim-regexp))
-
-(defconst geiser-syntax--ldefine-regexp
-  (format "[[(]define%s%s" geiser-syntax--ident-regexp geiser-syntax--delim-regexp))
-
-(defconst geiser-syntax--define-regexp
-  (format "[[(]\\(?:define\\)%s[[(]" geiser-syntax--delim-regexp))
-
-(defconst geiser-syntax--lambda-regexp
-  (format "[[(]\\(?:lambda\\)%s[[(]" geiser-syntax--delim-regexp))
-
 (defun geiser-syntax--locals-around-point ()
   (when (eq major-mode 'scheme-mode)
     (save-excursion
       (geiser-syntax--skip-comment/string)
-      (let ((ids))
+      (let* ((ids)
+             (push-id (lambda (n) (when (symbolp n) (push n ids))))
+             (get-arg (lambda (n) (if (listp n) (car n) n)))
+             (push-ids (lambda (is) (mapc push-id (nreverse (mapcar get-arg is))))))
         (while (not (zerop (geiser-syntax--nesting-level)))
-          (let ((p (point)))
+          (let ((geiser-syntax--read/buffer-limit (point)))
             (backward-up-list)
-            (save-excursion
-              (while (< (point) p)
-                (cond ((re-search-forward geiser-syntax--let-regexp p t)
-                       (when (match-string 1) (push (intern (match-string 1)) ids))
-                       (backward-char 1)
-                       (dolist (l (nreverse (geiser-syntax--read-list p)))
-                         (when (and (listp l) (symbolp (car l)))
-                           (push (car l) ids))))
-                      ((looking-at geiser-syntax--ldefine-regexp)
-                       (when (match-string 1) (push (intern (match-string 1)) ids))
-                       (goto-char (min p (match-end 0))))
-                      ((or (looking-at geiser-syntax--define-regexp)
-                           (looking-at geiser-syntax--lambda-regexp))
-                       (goto-char (min p (1- (match-end 0))))
-                       (dolist (s (nreverse (geiser-syntax--read-list p)))
-                         (let ((sn (if (listp s) (car s) s)))
-                           (when (symbolp sn) (push sn ids)))))
-                      ((re-search-forward geiser-syntax--ldefine-regexp p t)
-                       (when (match-string 1) (push (intern (match-string 1)) ids)))
-                      ((re-search-forward geiser-syntax--define-regexp p t)
-                       (backward-char 1)
-                       (let ((s (car (geiser-syntax--read-list p))))
-                         (when (symbolp s) (push s ids))))
-                      (t (goto-char (1+ p))))))))
+            (let* ((form (save-excursion (geiser-syntax--read)))
+                   (head (and (listp form) (car form)))
+                   (snd (and head (cadr form)))
+                   (third (and head (caddr form)))
+                   (is (case head
+                         ((define define*) (if (listp snd) snd (list snd)))
+                         ((let* letrec lambda let)
+                          (if (listp snd) snd
+                            (cons snd (and (eq head 'let)
+                                           (listp third)
+                                           third))))))
+                   (body (and is (case head
+                                   ((define define*) (and (listp snd) (cddr form)))
+                                   ((let let* letrec lambda)
+                                    (if (listp snd) (cddr form)
+                                      (cdddr form)))))))
+              (when is
+                (funcall push-ids
+                         (mapcar 'cdr
+                                 (remove-if (lambda (f) (or (not (listp f))
+                                                       (not (eq (car f) 'define))))
+                                            body)))
+                (funcall push-ids is)))))
         (nreverse ids)))))
 
 
 ;;; Fontify strings as Scheme code:
 
+(geiser-popup--define syntax " *geiser syntax analyst*" scheme-mode)
+
 (defun geiser-syntax--font-lock-buffer ()
   (let ((name " *geiser font lock*"))
     (or (get-buffer name)
-- 
cgit v1.2.3


From e63eed7c83ba3d1e3a3b29aaca7b336d4a635a39 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Sun, 30 Aug 2009 11:52:15 +0200
Subject: Tagging keywords as such in the scheme reader, for later spotting of
 active argument in autodoc.

---
 elisp/geiser-syntax.el | 59 +++++++++++++++++++++++++++-----------------------
 1 file changed, 32 insertions(+), 27 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 5cfbc32..91993be 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -104,32 +104,32 @@
 (defun geiser-syntax--read/next-token ()
   (skip-syntax-forward "->")
   (if (geiser-syntax--read/eos) '(eob)
-    (let ((c (char-after)))
-      (cond ((not c) '(eob))
-            ((eq c '\;)
-             (skip-syntax-forward "^>")
-             (geiser-syntax--read/next-token))
-            ((memq c '(?\( ?\[)) (geiser-syntax--read/token 'lparen))
-            ((memq c '(?\) ?\])) (geiser-syntax--read/token 'rparen))
-            ((eq c ?.)
-             (if (memq (syntax-after (1+ (point))) '(0 11 12))
-                 (geiser-syntax--read/token 'dot)
-               (cons 'atom (geiser-syntax--read/elisp))))
-            ((eq c ?\#)
-             (let ((c (geiser-syntax--read/next-char)))
-               (cond ((not c) '(eob))
-                     ((eq c ?\\) (cons 'char (geiser-syntax--read/elisp)))
-                     ((eq c ?\() (geiser-syntax--read/token 'vectorb))
-                     (t (geiser-syntax--read/next-token)))))
-            ((eq c ?\') (geiser-syntax--read/token '(quote . quote)))
-            ((eq c ?\`) (geiser-syntax--read/token
-                         `(backquote . ,backquote-backquote-symbol)))
-            ((eq c ?,) (if (eq (geiser-syntax--read/next-char) ?@)
-                           (geiser-syntax--read/token
-                            `(splice . ,backquote-splice-symbol))
-                         `(unquote . ,backquote-unquote-symbol)))
-            ((eq c ?\") (cons 'string (geiser-syntax--read/elisp)))
-            (t (cons 'atom (geiser-syntax--read/elisp)))))))
+    (case (char-after)
+      (\;
+       (skip-syntax-forward "^>")
+       (geiser-syntax--read/next-token))
+      ((?\( ?\[) (geiser-syntax--read/token 'lparen))
+      ((?\) ?\]) (geiser-syntax--read/token 'rparen))
+      (?. (if (memq (syntax-after (1+ (point))) '(0 11 12))
+              (geiser-syntax--read/token 'dot)
+            (cons 'atom (geiser-syntax--read/elisp))))
+      (?\# (let ((c (geiser-syntax--read/next-char)))
+             (cond ((not c) '(eob))
+                   ((eq c ?:)
+                    (if (geiser-syntax--read/next-char)
+                        (cons 'kwd (geiser-syntax--read/elisp))
+                      '(eob)))
+                   ((eq c ?\\) (cons 'char (geiser-syntax--read/elisp)))
+                   ((eq c ?\() (geiser-syntax--read/token 'vectorb))
+                   (t (geiser-syntax--read/next-token)))))
+      (?\' (geiser-syntax--read/token '(quote . quote)))
+      (?\` (geiser-syntax--read/token
+            `(backquote . ,backquote-backquote-symbol)))
+      (?, (if (eq (geiser-syntax--read/next-char) ?@)
+              (geiser-syntax--read/token `(splice . ,backquote-splice-symbol))
+            `(unquote . ,backquote-unquote-symbol)))
+      (?\" (cons 'string (geiser-syntax--read/elisp)))
+      (t (cons 'atom (geiser-syntax--read/elisp))))))
 
 (defsubst geiser-syntax--read/match (&rest tks)
   (let ((token (geiser-syntax--read/next-token)))
@@ -158,9 +158,13 @@
       (lparen (geiser-syntax--read/list))
       (vectorb (apply 'vector (geiser-syntax--read/list)))
       ((quote backquote unquote splice) (list (cdr token) (geiser-syntax--read)))
+      (kwd `(:keyword . ,(cdr token)))
       ((char string atom) (cdr token))
       (t (error "Reading scheme syntax: unexpected token: %s" token)))))
 
+(defsubst geiser-syntax--read/keyword-value (s)
+  (and (consp s) (eq (car s) :keyword) (cdr s)))
+
 
 ;;; Code parsing:
 
@@ -180,7 +184,8 @@
           (let ((form (save-excursion (geiser-syntax--read))))
             (when (and (listp form) (car form) (symbolp (car form)))
               (let* ((len-1 (1- (length form)))
-                     (prev (and (> len-1 1) (nth (1- len-1) form))))
+                     (prev (and (> len-1 1) (nth (1- len-1) form)))
+                     (prev (and prev (geiser-syntax--read/keyword-value prev))))
                 (push `(,(car form) ,len-1 ,@(and prev (symbolp prev) (list prev)))
                       path))))))
       (nreverse path))))
-- 
cgit v1.2.3


From 8d534314354d6858ec72f483b3e37cc50daaf8d8 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Sun, 30 Aug 2009 23:53:19 +0200
Subject: Improved local names detection (both implementation- and
 functional-wise).

---
 elisp/geiser-syntax.el | 66 +++++++++++++++++++++++++-------------------------
 1 file changed, 33 insertions(+), 33 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 91993be..13cab62 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -86,7 +86,7 @@
 
 (defsubst geiser-syntax--read/eos ()
   (or (eobp)
-      (and (numberp geiser-syntax--read/buffer-limit)
+      (and geiser-syntax--read/buffer-limit
            (<= geiser-syntax--read/buffer-limit (point)))))
 
 (defsubst geiser-syntax--read/next-char ()
@@ -165,6 +165,10 @@
 (defsubst geiser-syntax--read/keyword-value (s)
   (and (consp s) (eq (car s) :keyword) (cdr s)))
 
+(defsubst geiser-syntax--form-after-point (&optional boundary)
+  (let ((geiser-syntax--read/buffer-limit (and (numberp boundary) boundary)))
+    (save-excursion (values (geiser-syntax--read) (point)))))
+
 
 ;;; Code parsing:
 
@@ -179,9 +183,9 @@
     (let* ((fst (symbol-at-point))
            (path (and fst (list (list fst 0)))))
       (while (not (zerop (geiser-syntax--nesting-level)))
-        (let ((geiser-syntax--read/buffer-limit (1+ (point))))
+        (let ((boundary (1+ (point))))
           (backward-up-list)
-          (let ((form (save-excursion (geiser-syntax--read))))
+          (let ((form (nth-value 0 (geiser-syntax--form-after-point boundary))))
             (when (and (listp form) (car form) (symbolp (car form)))
               (let* ((len-1 (1- (length form)))
                      (prev (and (> len-1 1) (nth (1- len-1) form)))
@@ -190,41 +194,37 @@
                       path))))))
       (nreverse path))))
 
+(defun geiser-syntax--scan-locals (form partial locals)
+  (flet ((if-symbol (x) (and (symbolp x) x))
+         (if-list (x) (and (listp x) x))
+         (normalize (vars) (mapcar (lambda (i) (if (listp i) (car i) i)) vars)))
+    (cond ((or (null form) (not (listp form))) (normalize locals))
+          ((not (memq (car form) '(define let let* letrec lambda)))
+           (geiser-syntax--scan-locals (car (last form)) partial locals))
+          (t
+           (let* ((head (car form))
+                  (name (if-symbol (cadr form)))
+                  (names (if name (if-list (caddr form)) (if-list (cadr form))))
+                  (rest (if name (cdddr form) (cddr form)))
+                  (use-names (or (eq head 'let*) (not partial) rest)))
+             (when name (push name locals))
+             (when use-names (dolist (n names) (push n locals)))
+             (dolist (f (butlast rest))
+               (when (eq (car f) 'define) (push (cadr f) locals)))
+             (geiser-syntax--scan-locals (car (last (or rest names)))
+                                         partial
+                                         locals))))))
+
 (defun geiser-syntax--locals-around-point ()
   (when (eq major-mode 'scheme-mode)
     (save-excursion
       (geiser-syntax--skip-comment/string)
-      (let* ((ids)
-             (push-id (lambda (n) (when (symbolp n) (push n ids))))
-             (get-arg (lambda (n) (if (listp n) (car n) n)))
-             (push-ids (lambda (is) (mapc push-id (nreverse (mapcar get-arg is))))))
+      (let ((boundary (point)))
         (while (not (zerop (geiser-syntax--nesting-level)))
-          (let ((geiser-syntax--read/buffer-limit (point)))
-            (backward-up-list)
-            (let* ((form (save-excursion (geiser-syntax--read)))
-                   (head (and (listp form) (car form)))
-                   (snd (and head (cadr form)))
-                   (third (and head (caddr form)))
-                   (is (case head
-                         ((define define*) (if (listp snd) snd (list snd)))
-                         ((let* letrec lambda let)
-                          (if (listp snd) snd
-                            (cons snd (and (eq head 'let)
-                                           (listp third)
-                                           third))))))
-                   (body (and is (case head
-                                   ((define define*) (and (listp snd) (cddr form)))
-                                   ((let let* letrec lambda)
-                                    (if (listp snd) (cddr form)
-                                      (cdddr form)))))))
-              (when is
-                (funcall push-ids
-                         (mapcar 'cdr
-                                 (remove-if (lambda (f) (or (not (listp f))
-                                                       (not (eq (car f) 'define))))
-                                            body)))
-                (funcall push-ids is)))))
-        (nreverse ids)))))
+          (backward-up-list))
+        (multiple-value-bind (form end)
+            (geiser-syntax--form-after-point boundary)
+          (geiser-syntax--scan-locals form (> end boundary) '()))))))
 
 
 ;;; Fontify strings as Scheme code:
-- 
cgit v1.2.3


From 3a80af06f2b9272db379fed3b5b659ecfeeceb70 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Mon, 7 Sep 2009 00:17:12 +0200
Subject: Scheme reader improvements: #<>, #||# and other bits.

---
 elisp/geiser-syntax.el | 62 +++++++++++++++++++++++++++++++++++---------------
 1 file changed, 44 insertions(+), 18 deletions(-)

(limited to 'elisp/geiser-syntax.el')

diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index 13cab62..ca218c8 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -101,32 +101,52 @@
 (defsubst geiser-syntax--read/elisp ()
   (ignore-errors (read (current-buffer))))
 
+(defun geiser-syntax--read/matching (open close)
+  (let ((count 1)
+        (p (1+ (point))))
+    (while (and (> count 0)
+                (geiser-syntax--read/next-char))
+      (cond ((looking-at-p open) (setq count (1+ count)))
+            ((looking-at-p close) (setq count (1- count)))))
+    (buffer-substring-no-properties p (point))))
+
+(defsubst geiser-syntax--read/unprintable ()
+  (geiser-syntax--read/token
+   (cons 'unprintable (geiser-syntax--read/matching "<" ">"))))
+
+(defun geiser-syntax--read/skip-comment ()
+  (while (and (geiser-syntax--read/next-char)
+              (nth 8 (syntax-ppss))))
+  (geiser-syntax--read/next-token))
+
 (defun geiser-syntax--read/next-token ()
   (skip-syntax-forward "->")
   (if (geiser-syntax--read/eos) '(eob)
     (case (char-after)
-      (\;
-       (skip-syntax-forward "^>")
-       (geiser-syntax--read/next-token))
+      (?\; (geiser-syntax--read/skip-comment))
       ((?\( ?\[) (geiser-syntax--read/token 'lparen))
       ((?\) ?\]) (geiser-syntax--read/token 'rparen))
       (?. (if (memq (syntax-after (1+ (point))) '(0 11 12))
               (geiser-syntax--read/token 'dot)
             (cons 'atom (geiser-syntax--read/elisp))))
-      (?\# (let ((c (geiser-syntax--read/next-char)))
-             (cond ((not c) '(eob))
-                   ((eq c ?:)
-                    (if (geiser-syntax--read/next-char)
-                        (cons 'kwd (geiser-syntax--read/elisp))
-                      '(eob)))
-                   ((eq c ?\\) (cons 'char (geiser-syntax--read/elisp)))
-                   ((eq c ?\() (geiser-syntax--read/token 'vectorb))
-                   (t (geiser-syntax--read/next-token)))))
+      (?\# (case (geiser-syntax--read/next-char)
+             ('nil '(eob))
+             (?| (geiser-syntax--read/skip-comment))
+             (?: (if (geiser-syntax--read/next-char)
+                     (cons 'kwd (geiser-syntax--read/elisp))
+                   '(eob)))
+             (?\\ (cons 'char (geiser-syntax--read/elisp)))
+             (?\( (geiser-syntax--read/token 'vectorb))
+             (?\< (geiser-syntax--read/unprintable))
+             (t (let ((tok (geiser-syntax--read/elisp)))
+                  (if tok (cons 'atom (intern (format "#%s" tok)))
+                    (geiser-syntax--read/next-token))))))
       (?\' (geiser-syntax--read/token '(quote . quote)))
       (?\` (geiser-syntax--read/token
             `(backquote . ,backquote-backquote-symbol)))
       (?, (if (eq (geiser-syntax--read/next-char) ?@)
-              (geiser-syntax--read/token `(splice . ,backquote-splice-symbol))
+              (geiser-syntax--read/token
+               `(splice . ,backquote-splice-symbol))
             `(unquote . ,backquote-unquote-symbol)))
       (?\" (cons 'string (geiser-syntax--read/elisp)))
       (t (cons 'atom (geiser-syntax--read/elisp))))))
@@ -157,8 +177,10 @@
       (eob nil)
       (lparen (geiser-syntax--read/list))
       (vectorb (apply 'vector (geiser-syntax--read/list)))
-      ((quote backquote unquote splice) (list (cdr token) (geiser-syntax--read)))
+      ((quote backquote unquote splice) (list (cdr token)
+                                              (geiser-syntax--read)))
       (kwd `(:keyword . ,(cdr token)))
+      (unprintable (format "#<%s>" (cdr token)))
       ((char string atom) (cdr token))
       (t (error "Reading scheme syntax: unexpected token: %s" token)))))
 
@@ -185,12 +207,15 @@
       (while (not (zerop (geiser-syntax--nesting-level)))
         (let ((boundary (1+ (point))))
           (backward-up-list)
-          (let ((form (nth-value 0 (geiser-syntax--form-after-point boundary))))
+          (let ((form
+                 (nth-value 0 (geiser-syntax--form-after-point boundary))))
             (when (and (listp form) (car form) (symbolp (car form)))
               (let* ((len-1 (1- (length form)))
                      (prev (and (> len-1 1) (nth (1- len-1) form)))
-                     (prev (and prev (geiser-syntax--read/keyword-value prev))))
-                (push `(,(car form) ,len-1 ,@(and prev (symbolp prev) (list prev)))
+                     (prev (and prev
+                                (geiser-syntax--read/keyword-value prev))))
+                (push `(,(car form)
+                        ,len-1 ,@(and prev (symbolp prev) (list prev)))
                       path))))))
       (nreverse path))))
 
@@ -204,7 +229,8 @@
           (t
            (let* ((head (car form))
                   (name (if-symbol (cadr form)))
-                  (names (if name (if-list (caddr form)) (if-list (cadr form))))
+                  (names (if name (if-list (caddr form))
+                           (if-list (cadr form))))
                   (rest (if name (cdddr form) (cddr form)))
                   (use-names (or (eq head 'let*) (not partial) rest)))
              (when name (push name locals))
-- 
cgit v1.2.3