Struct Grammar 

pub struct Grammar {
    pub rules: HashMap<String, GrammarNode>,
    pub root: String,
    pub source: String,
}

A fully parsed GBNF grammar.

Fields

rules: HashMap<String, GrammarNode>

Map from rule name to its grammar node.

root: String

The root rule name (first rule defined, or “root” if present).

source: String

The original GBNF source string (retained for snapshot/resume).

Implementations

impl Grammar

pub fn parse(input: &str) -> GrammarResult<Self>

Parse a GBNF grammar string into a Grammar structure.

pub fn root_node(&self) -> GrammarResult<&GrammarNode>

Get the grammar node for the root rule.

impl Grammar

pub fn initial_state(&self) -> GrammarState

Create the initial parse state for this grammar.

Trait Implementations

impl Clone for Grammar

fn clone(&self) -> Grammar

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Grammar

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

Formats the value using the given formatter.