mod item;
pub use item::Item;
mod error;
pub use error::PatternError;
#[derive(Debug, PartialEq, Eq)]
pub struct Pattern {
parts: Vec<Item>,
}
impl Pattern {
pub fn new(input: &str) -> Result<Self, PatternError> {
let mut parts: Vec<Item> = vec![];
for part in input.split(" -> ") {
let part = Item::new(part)?;
parts.push(part);
}
Ok(Self { parts })
}
pub fn empty() -> Self {
Self { parts: vec![] }
}
pub fn push(&mut self, item: Item) {
self.parts.push(item)
}
pub fn pop(&mut self) -> Option<Item> {
self.parts.pop()
}
}