skkdic-count.rs

use std::io::BufRead;
use std::io;

pub fn count_entry<R: BufRead>(input: R) -> usize {
    input.lines()
        .flat_map(|r| r.ok())
        .filter(|l| !l.starts_with(";;"))
        .flat_map(|l| l.split("/[").next())
        .map(|l| l.trim_right_matches("/").split("/").count() - 1 )
        .fold(0, |a, i| a + i)
}

pub fn main() {
  let stdin = io::stdin();
  println!("{} candidate(s)", count_entry(stdin.lock()));
}