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authorJose Antonio Ortega Ruiz <jao@gnu.org>2010-10-06 01:57:18 +0200
committerJose Antonio Ortega Ruiz <jao@gnu.org>2010-10-06 01:57:18 +0200
commitde4041d918ce90680bfddf9aa8430f8295dcea1e (patch)
tree6b9b01785b013c010ba2543c6bf250babe6cb377 /elisp/geiser-syntax.el
parent8170fdab0cf35cf12d1dc091b6232ac4d22fe1a5 (diff)
downloadgeiser-chez-de4041d918ce90680bfddf9aa8430f8295dcea1e.tar.gz
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Fixes for scanning of locals during completion
Diffstat (limited to 'elisp/geiser-syntax.el')
-rw-r--r--elisp/geiser-syntax.el70
1 files changed, 40 insertions, 30 deletions
diff --git a/elisp/geiser-syntax.el b/elisp/geiser-syntax.el
index ae6c072..00b4030 100644
--- a/elisp/geiser-syntax.el
+++ b/elisp/geiser-syntax.el
@@ -215,7 +215,9 @@
;;; Code parsing:
(defsubst geiser-syntax--skip-comment/string ()
- (goto-char (or (nth 8 (syntax-ppss)) (point))))
+ (let ((pos (nth 8 (syntax-ppss))))
+ (goto-char (or pos (point)))
+ pos))
(defsubst geiser-syntax--nesting-level ()
(or (nth 0 (syntax-ppss)) 0))
@@ -243,7 +245,7 @@
(nreverse path)))
(defsubst geiser-syntax--binding-form-p (bfs sbfs f)
- (or (memq f '(define define* lambda let let* letrec))
+ (or (memq f '(define define* lambda let let* letrec parameterize))
(memq f bfs)
(memq f sbfs)))
@@ -255,43 +257,51 @@
(defsubst geiser-syntax--normalize (vars)
(mapcar (lambda (i) (if (listp i) (car i) i)) vars))
+(defun geiser-syntax--linearize (form)
+ (cond ((not (listp form)) (list form))
+ ((null form) nil)
+ (t (cons (car form) (geiser-syntax--linearize (cdr form))))))
+
(defun geiser-syntax--scan-locals (bfs sbfs form partial locals)
- (let ((form (if (listp form) (geiser-syntax--normalize form) form)))
- (cond ((or (null form) (not (listp form)))
- (geiser-syntax--normalize locals))
- ((not (geiser-syntax--binding-form-p bfs sbfs (car form)))
- (geiser-syntax--scan-locals bfs sbfs
- (car (last form)) partial locals))
- (t
- (let* ((head (car form))
- (name (geiser-syntax--if-symbol (cadr form)))
- (names (if name (geiser-syntax--if-list (caddr form))
- (geiser-syntax--if-list (cadr form))))
- (rest (if name (cdddr form) (cddr form)))
- (use-names (or rest
- (not partial)
- (geiser-syntax--binding-form*-p sbfs
- head))))
- (when name (push name locals))
- (when use-names (dolist (n names) (push n locals)))
- (dolist (f (butlast rest))
- (when (and (listp f) (eq (car f) 'define))
- (push (cadr f) locals)))
- (geiser-syntax--scan-locals bfs sbfs
- (car (last (or rest names)))
- partial
- locals))))))
+ (if (or (null form) (not (listp form)))
+ (geiser-syntax--normalize locals)
+ (if (not (geiser-syntax--binding-form-p bfs sbfs (car form)))
+ (geiser-syntax--scan-locals bfs sbfs
+ (car (last form)) partial locals)
+ (let* ((head (car form))
+ (name (geiser-syntax--if-symbol (cadr form)))
+ (names (if name (geiser-syntax--if-list (caddr form))
+ (geiser-syntax--if-list (cadr form))))
+ (rest (if name (cdddr form) (cddr form)))
+ (use-names (or rest
+ (not partial)
+ (geiser-syntax--binding-form*-p sbfs
+ head))))
+ (when name (push name locals))
+ (when use-names
+ (dolist (n (geiser-syntax--linearize names))
+ (push n locals)))
+ (dolist (f (butlast rest))
+ (when (and (listp f) (eq (car f) 'define))
+ (push (cadr f) locals)))
+ (geiser-syntax--scan-locals bfs sbfs
+ (car (last (or rest names)))
+ partial
+ locals)))))
(defun geiser-syntax--locals-around-point (bfs sbfs)
(when (eq major-mode 'scheme-mode)
(save-excursion
- (geiser-syntax--skip-comment/string)
- (let ((boundary (point)))
+ (let* ((sym (unless (geiser-syntax--skip-comment/string)
+ (symbol-at-point)))
+ (boundary (point)))
(while (not (zerop (geiser-syntax--nesting-level)))
(backward-up-list))
(multiple-value-bind (form end)
(geiser-syntax--form-after-point boundary)
- (geiser-syntax--scan-locals bfs sbfs form (> end boundary) '()))))))
+ (delq sym
+ (geiser-syntax--scan-locals bfs sbfs form
+ (> end boundary) '())))))))
;;; Fontify strings as Scheme code: