Struct DocumentIndex 

pub struct DocumentIndex<'a> { /* private fields */ }

Available on crate features css-selector or xpath only.

CSS selector and XPath engine. Pre-built index for O(1) id, class, and tag lookups.

Build once with a single DFS pass, reuse for many lookups.

Implementations

impl<'a> DocumentIndex<'a>

pub fn build(doc: &'a Document) -> DocumentIndex<'a>

Build an index from a document by scanning all nodes in a single pass.

If the arena has a pre-built tag index (constructed inline during tree building), the tag map is copied directly — avoiding the tag scan.

pub fn find_by_id(&self, _doc: &Document, id: &str) -> Option<NodeRef<'a>>

Look up a node by its id attribute in O(1).

The doc argument is retained for compatibility; lookups resolve against the document used to build this index.

pub fn find_by_class(&self, _doc: &Document, class: &str) -> Vec<NodeRef<'a>>

Look up all nodes with a given CSS class in O(1).

The doc argument is retained for compatibility; lookups resolve against the document used to build this index.

pub fn find_by_tag(&self, _doc: &Document, tag: Tag) -> Vec<NodeRef<'a>>

Look up all nodes with a given tag in O(1).

The doc argument is retained for compatibility; lookups resolve against the document used to build this index.