Struct Pattern 

pub struct Pattern { /* private fields */ }

A compiled libxml2-flavour pattern. Match nodes via Self::matches.

Implementations

impl Pattern

pub fn compile(src: &str) -> Result<Self, String>

Compile a pattern source string into a matcher.

Returns Err on syntax errors or grammar features outside the libxml2 pattern subset.

pub fn matches(&self, node: &Node<'_>) -> bool

Does node match this pattern? Walks upward via parent pointers, so the node must be attached to a tree.

pub fn matches_attribute( &self, attr_name: &str, parent: Option<&Node<'_>>, ) -> bool

Like matches, but for an attribute candidate.

Attributes are a distinct node type in this tree, so they cannot be reinterpreted as an &Node to feed matches — the two have different layouts. The caller supplies the attribute’s name and owner element; the leftmost (@name / @*) step is matched against the name and the rest of the pattern against the owner-element ancestor chain.

Trait Implementations

impl Clone for Pattern

fn clone(&self) -> Pattern

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Pattern

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.