[−][src]Trait xml_dom::Text
This corresponds to the DOM Text
interface.
Specification
The Text
interface inherits from CharacterData
and represents the
textual content (termed character data in XML) of an Element
or
Attr
. If there is no markup inside an element's content, the text is
contained in a single object implementing the Text
interface that is the only child of the
element. If there is markup, it is parsed into the information items (elements, comments,
etc.) and Text
nodes that form the list of children of the element.
When a document is first made available via the DOM, there is only one Text
node for each
block of text. Users may create adjacent Text
nodes that represent the contents of a given
element without any intervening markup, but should be aware that there is no way to represent
the separations between these nodes in XML or HTML, so they will not (in general) persist
between DOM editing sessions. The normalize()
method on Node
merges any
such adjacent Text
objects into a single node for each block of text.
Required methods
fn split(&mut self, offset: usize) -> Result<Self::NodeRef>
Breaks this node into two nodes at the specified offset, keeping both in the tree as siblings.
Specification
After being split, this node will contain all the content up to the offset point. A new node of the same type, which contains all the content at and after the offset point, is returned. If the original node had a parent node, the new node is inserted as the next sibling of the original node. When the offset is equal to the length of this node, the new node has no data.
Parameters
offset
of typeunsigned long
: The 16-bit unit offset at which to split, starting from 0.
Return Value
Text
: The new node, of the same type as this node.
Exceptions
INDEX_SIZE_ERR
: Raised if the specified offset is negative or greater than the number of 16-bit units in data.NO_MODIFICATION_ALLOWED_ERR
: Raised if this node is readonly.