Deduplicate dictionary lookup logic

[eagleflo]

There's a fair bit of duplicated logic depending on which dictionary is being consulted in

jisho/src/lib.rs

Lines 52 to 76 in 425b409

	if is_japanese(&first) {
	if j2e.contains_key(input) {
	let (reb, gloss) = j2e.get(input).unwrap();
	println!("{}【{}】- {}", input, reb, gloss);
	} else {
	for key in j2e.keys() {
	if key.starts_with(input) {
	let (reb, gloss) = j2e.get(key).unwrap();
	println!("{}【{}】- {}", input, reb, gloss);
	}
	}
	}
	} else {
	if e2j.contains_key(input) {
	let (keb, reb) = e2j.get(input).unwrap();
	println!("{}【{}】- {}", keb, reb, input);
	} else {
	for key in e2j.keys() {
	if key.starts_with(input) {
	let (keb, reb) = e2j.get(key).unwrap();
	println!("{}【{}】- {}", keb, reb, key);
	}
	}
	}
	}

By clearly setting up keb, reb and gloss it should be possible to cut that down in half.