diff options
| -rw-r--r-- | doc/lispref/text.texi | 3 | ||||
| -rw-r--r-- | etc/NEWS | 3 | ||||
| -rw-r--r-- | lisp/dom.el | 6 | ||||
| -rw-r--r-- | test/lisp/dom-tests.el | 7 |
4 files changed, 19 insertions, 0 deletions
diff --git a/doc/lispref/text.texi b/doc/lispref/text.texi index 58424a4231b..9317362a70a 100644 --- a/doc/lispref/text.texi +++ b/doc/lispref/text.texi @@ -5161,6 +5161,9 @@ The following are functions for altering the @acronym{DOM}. @item dom-set-attribute @var{node} @var{attribute} @var{value} Set the @var{attribute} of the node to @var{value}. +@item dom-remove-attribute @var{node} @var{attribute} +Remove @var{attribute} from @var{node}. + @item dom-append-child @var{node} @var{child} Append @var{child} as the last child of @var{node}. @@ -358,6 +358,9 @@ optional argument specifying whether to follow symbolic links. ** 'parse-time-string' can now parse ISO 8601 format strings, such as "2020-01-15T16:12:21-08:00". ++++ +** The new function 'dom-remove-attribute' has been added. + --- ** 'make-network-process', 'make-serial-process' :coding behavior change. Previously, passing ":coding nil" to either of these functions would diff --git a/lisp/dom.el b/lisp/dom.el index 34df0e9af4c..7ff9e07b729 100644 --- a/lisp/dom.el +++ b/lisp/dom.el @@ -67,6 +67,12 @@ (setcdr old value) (setcar (cdr node) (nconc (cadr node) (list (cons attribute value))))))) +(defun dom-remove-attribute (node attribute) + "Remove ATTRIBUTE from NODE." + (setq node (dom-ensure-node node)) + (when-let ((old (assoc attribute (cadr node)))) + (setcar (cdr node) (delq old (cadr node))))) + (defmacro dom-attr (node attr) "Return the attribute ATTR from NODE. A typical attribute is `href'." diff --git a/test/lisp/dom-tests.el b/test/lisp/dom-tests.el index d44851eb13b..eb15500d84c 100644 --- a/test/lisp/dom-tests.el +++ b/test/lisp/dom-tests.el @@ -84,6 +84,13 @@ (dom-set-attribute dom attr value) (should (equal (dom-attr dom attr) value)))) +(ert-deftest dom-tests-remove-attribute () + (let ((dom `(body ((foo . "bar") (zot . "foobar"))))) + (should (equal (dom-attr dom 'foo) "bar")) + (dom-remove-attribute dom 'foo) + (should (equal (dom-attr dom 'foo) nil)) + (should (equal dom '(body ((zot . "foobar"))))))) + (ert-deftest dom-tests-attr () (let ((dom (dom-tests--tree))) (should-not (dom-attr dom 'id)) |