Struct winnow_sm::Nodes

pub struct Nodes {
    current_node: usize,
    env: Env,
    internal_state: usize,
    nodes: Vec<Node>,
}

Containing structure for all nodes Nodes are registered in sequential order

Fields

current_node: usize

Current node tracker

env: Env

User-defined mapping of names to values

internal_state: usize

Internal state tracker

nodes: Vec<Node>

Array (actually variable-sized heap-allocated vector) of nodes

Methods

impl Nodes

pub fn new(specified_input: Option<String>) -> Self

Constructor will parse specified file or input.txt if None

pub fn run(&mut self)

Execute machine

fn register_question_node(
    &mut self,
    if_answered: usize,
    if_terminate: usize,
    variable_name: &str,
    questions: Vec<String>
)

Add a question node to the set

fn register_branching_node(
    &mut self,
    variable_name: &str,
    question: &str,
    options: Vec<(String, usize)>
)

Add a branching node to the set

fn register_terminating_node(&mut self, text: &str)

Add a terminating node to the set

fn read_and_register(&mut self, parsed: Pair<Rule>)

Catch-all to register a parsed node

fn state_transition(&mut self, new_state: usize)

State transition

Trait Implementations

impl Default for Nodes

fn default() -> Nodes

Returns the "default value" for a type.

impl PartialEq<Nodes> for Nodes

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Debug for Nodes

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

Formats the value using the given formatter.

impl Display for Nodes

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

Formats the value using the given formatter.