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Contents
#[macro_use] extern crate lazy_static;
extern crate regex;
use regex::Regex;
// Regular expressions from Python version of exercism
pub fn translate_word(word: &str) -> String {
// Prevent creation and compilation at every call.
// These are compiled exactly once
lazy_static! {
// Detects if it starts with a vowel
static ref VOWEL: Regex = Regex::new(r"^([aeiou]|y[^aeiou]|xr)[a-z]*").unwrap();
// Detects splits for initial consonants
static ref CONSONANTS: Regex = Regex::new(r"^([^aeiou]?qu|[^aeiou]+)([a-z]*)").unwrap();
}
if VOWEL.is_match(word) {
String::from(word) + "ay"
} else {
let caps = CONSONANTS.captures(word).unwrap();
String::from(&caps[2]) + &caps[1] + "ay"
}
}
pub fn translate(text: &str) -> String {
text.split(" ").map(|w| translate_word(w)).collect::<Vec<_>>().join(" ")
}
Version data entries
180 entries across 180 versions & 1 rubygems