Mon Nov 30 04:48:22 UTC 2009 pix@kepibu.org

* Combine nth-child variants

--- old-Oh, Ducks!/selectors.lisp 2015-11-27 13:25:21.000000000 +0000

+++ new-Oh, Ducks!/selectors.lisp 2015-11-27 13:25:21.000000000 +0000

@@ -44,6 +44,10 @@

(let ((selector (template-spec template)))

(setf (slot-value template 'matcher) (parse-selector (string-trim " " selector))))))

+(warn "parse-selector currently relies on a patch which has not only ~

+ not been submitted to cl-unification-devel, it has not yet ~

+ been copied to penguin.")

+

(defun parse-selector (selector)

(match-case (selector)

;; combinators

@@ -54,23 +58,20 @@

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

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

;; simple selectors

- ;; FIXME: fix cl-unification so it can handle non-matching groups,

- ;; so we can merge all these nth-child-selector variants

- ;; into one or two

- (#T(regexp$ ":nth-child\\([ ]*([+-]?[0-9]+)n[ ]*([+-]?[0-9]+)[ ]*\\)" (?a ?b))

- (cons (make-instance 'nth-child-selector :arg (cons (parse-integer a) (parse-integer b))) (parse-selector &rest)))

- (#T(regexp$ ":nth-child\\([ ]*([+-]?[0-9]+)n[ ]*\\)" (?a))

- (cons (make-instance 'nth-child-selector :arg (cons (parse-integer a) 0)) (parse-selector &rest)))

- (#T(regexp$ ":nth-child\\([ ]*n[ ]*([+-]?[0-9]+)[ ]*\\)" (?b))

- (cons (make-instance 'nth-child-selector :arg (cons 1 (parse-integer b))) (parse-selector &rest)))

- (#T(regexp$ ":nth-child\\([ ]*-n[ ]*([+-]?[0-9]+)[ ]*\\)" (?b))

- (cons (make-instance 'nth-child-selector :arg (cons -1 (parse-integer b))) (parse-selector &rest)))

+ ;; cyclic (An+B, n+B)

+ (#T(regexp$ ":nth-child\\([ ]*([+-]?)([0-9]+)?n[ ]*([+-]?[0-9]+)?[ ]*\\)" (?asign ?a ?b))

+ (cons (make-instance 'nth-child-selector

+ :arg (cons (funcall (if (string= "-" asign) #'- #'+)

+ (if (stringp a) (parse-integer a) 1))

+ (if (stringp b) (parse-integer b) 0)))

+ (parse-selector &rest)))

+ ;; absolute (B)

(#T(regexp$ ":nth-child\\([ ]*([+-]?[0-9]+)[ ]*\\)" (?b))

(cons (make-instance 'nth-child-selector :arg (cons 0 (parse-integer b))) (parse-selector &rest)))

- (#T(regexp$ ":nth-child\\([ ]*odd[ ]*\\)" ())

- (cons (make-instance 'nth-child-selector :arg (cons 2 1)) (parse-selector &rest)))

- (#T(regexp$ ":nth-child\\([ ]*even[ ]*\\)" ())

- (cons (make-instance 'nth-child-selector :arg (cons 2 0)) (parse-selector &rest)))

+ ;; named (odd, even)

+ (#T(regexp$ ":nth-child\\([ ]*(odd|even)[ ]*\\)" (?which))

+ (cons (make-instance 'nth-child-selector :arg (cons 2 (if (string-equal "odd" which) 1 0)))

+ (parse-selector &rest)))

(#T(regexp$ ":first-child" ())

(cons (make-instance 'nth-child-selector :arg (cons 0 1)) (parse-selector &rest)))

(#T(regexp$ "[#](\\w+)" (?id))