Struct ParseElementOptional

pub struct ParseElementOptional<E: ElementState> { /* private fields */ }

InnerState to parse a single optional element

Trait Implementations

impl<E: ElementState> Default for ParseElementOptional<E>

fn default() -> Self

Returns the “default value” for a type.

impl<E: ElementState> InnerState for ParseElementOptional<E>

type Output = Option<<E as ElementState>::Output>

Once fully parsed this is the resulting output type.

fn parse_inner_node<P: ElementParser>( &mut self, tag: &str, parser: P, ) -> Result<InnerParseResult<P>>

Try parsing an element with the given tag

fn parse_inner_finish(self) -> Result<Self::Output>

Finish parsing.

fn parse_inner_text<'t>( &mut self, text: Cow<'t, str>, ) -> Result<InnerParseResult<Cow<'t, str>>>

Try parsing inner text