Enum ptb_reader::PTBTree

pub enum PTBTree {
    InnerNode {
        label: String,
        children: Vec<PTBTree>,
    },
    TerminalNode {
        label: String,
    },
}

Arbitrarily wide recursive trees of String.

Variants

InnerNode

Fields of InnerNode

label: String
children: Vec<PTBTree>

TerminalNode

Fields of TerminalNode

label: String

Methods

impl PTBTree

fn front(&self) -> String

Return String from joined terminals at the leaves (i.e, front, yield).

use ptb_reader::PTBTree;
let tree = PTBTree::InnerNode{ label: "NT".to_string(), children: vec![PTBTree::TerminalNode{ label: "t".to_string() }] };
assert_eq!(tree.front(), "t")

fn front_length(&self) -> usize

Return number of terminal words, i.e. length of front.

fn strip_predicate_annotations(&mut self)

Remove predicate-argument annotations and trace elements. See . Thanks to Toni Dietze for formalizing the necessary stripping :)

Trait Implementations

impl Debug for PTBTree

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for PTBTree

fn clone(&self) -> PTBTree

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for PTBTree

fn eq(&self, __arg_0: &PTBTree) -> bool

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

fn ne(&self, __arg_0: &PTBTree) -> bool

This method tests for !=.

impl Eq for PTBTree

impl Display for PTBTree

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

Return bracketed (and outside-bracketed!) PTB notation:

use ptb_reader::PTBTree;
let tree = PTBTree::InnerNode{ label: "NT".to_string(), children: vec![PTBTree::TerminalNode{ label: "t".to_string() }] };
assert_eq!(format!("{}", tree), "((NT t))")