Thu Dec 3 00:12:02 UTC 2009 pix@kepibu.org

* Add sibling and adjacent combinators

--- old-Oh, Ducks!/selectors.lisp 2015-11-13 03:14:38.000000000 +0000

+++ new-Oh, Ducks!/selectors.lisp 2015-11-13 03:14:38.000000000 +0000

@@ -51,8 +51,10 @@

(defun parse-selector (selector)

(match-case (selector)

;; combinators

- #+TODO (#T(regexp$ "[ ]*[~][ ]*" ()) (list (make-instance 'sibling-combinator :matcher (parse-selector &rest))))

- #+TODO (#T(regexp$ "[ ]*[+][ ]*" ()) (list (make-instance 'adjacent-combinator :matcher (parse-selector &rest))))

+ (#T(regexp$ "[ ]*[~][ ]*" ())

+ (list (make-instance 'sibling-combinator :matcher (parse-selector &rest))))

+ (#T(regexp$ "[ ]*[+][ ]*" ())

+ (list (make-instance 'adjacent-combinator :matcher (parse-selector &rest))))

(#T(regexp$ "[ ]*[>][ ]*" ())

(list (make-instance 'child-combinator :matcher (parse-selector &rest))))

(#T(regexp$ "[ ]+" ())

@@ -143,10 +145,18 @@

(defmethod element-matches-p (element (selector descendant-combinator))

(some (rcurry #'element-matches-p (matcher selector)) (element-ancestors element)))

-#+TODO

(defmethod element-matches-p (element (selector adjacent-combinator))

- ...)

+ (let* ((parent (element-parent element))

+ (siblings (element-children parent))

+ (ourpos (position element siblings :test #'eq)))

+ (and ourpos

+ (> ourpos 0)

+ (element-matches-p (elt siblings (1- ourpos)) (matcher selector)))))

-#+TODO

(defmethod element-matches-p (element (selector sibling-combinator))

- ...)

+ (let* ((parent (element-parent element))

+ (siblings (element-children parent))

+ (ourpos (position element siblings :test #'eq)))

+ (and ourpos

+ (> ourpos 0)

+ (find-if (rcurry #'element-matches-p (matcher selector)) siblings :end ourpos))))

--- old-Oh, Ducks!/tests.lisp 2015-11-13 03:14:38.000000000 +0000

+++ new-Oh, Ducks!/tests.lisp 2015-11-13 03:14:38.000000000 +0000

@@ -59,6 +59,17 @@

"<div>I do <i>not</i> <i>like</i> cheese.</div><div><span>I like <i>cheese</i>.</span></div>")

(values div))

+(match (#T(html (:model dom)

+ ("b + i" . ?i))

+ "<div>I <b>really</b> <i>like</i> cheese. Do you not <i>dislike</i> cheese?</div>")

+ (values i))

+

+(match (#T(html (:model dom)

+ ("b ~ i" . ?i))

+ "<div>I <i>really</i> <b>like</b> cheese. Do you not <i>dislike</i> cheese?</div>")

+ (values i))

+

+

#+LATER?

(match (#t(html ("div::content" . #t(regexp+ "^f(o+)" (?o))))

"<div>barbaz</div><div>fooooooobar</div>")