Struct ContentExpr 

pub struct ContentExpr { /* private fields */ }

A parsed, validated content expression. Matching runs an NFA simulation over the observed block sequence so a failure can report the exact position and the terminals that would have been legal there.

Implementations

impl ContentExpr

pub fn parse(source: &str) -> Result<Self, ContentExprError>

Parse and validate an expression string. The compiled expression is cached on the schema at load time — parse once, match per write.

pub fn source(&self) -> &str

The verbatim declaration text.

pub fn mentioned_names(&self) -> Vec<&str>

The distinct block names the expression mentions — the loader uses this for item_pattern legality (“exactly one of list / paragraph”, counted by name, repeated occurrences of the same kind are fine).

pub fn match_blocks(&self, blocks: &[ObservedBlock]) -> Result<(), MatchFailure>

Match the observed block sequence against the expression.

Trait Implementations

impl Clone for ContentExpr

fn clone(&self) -> ContentExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContentExpr

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

Formats the value using the given formatter.

impl Eq for ContentExpr

impl PartialEq for ContentExpr

fn eq(&self, other: &ContentExpr) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ContentExpr