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use unicode_segmentation::UnicodeSegmentation;
pub fn vec_hamming_distance<T: PartialEq>(s1: &Vec<T>, s2: &Vec<T>) -> usize {
let (longer, shorter) = if s1.len() > s2.len() {
(s1, s2)
} else {
(s2, s1)
};
let mut distance = longer.len() - shorter.len();
for (i, c) in shorter.iter().enumerate() {
if *c != longer[i] {
distance += 1
}
}
return distance;
}
pub fn hamming_distance(s1: &str, s2: &str) -> usize {
let us1 = UnicodeSegmentation::graphemes(s1, true).collect::<Vec<&str>>();
let us2 = UnicodeSegmentation::graphemes(s2, true).collect::<Vec<&str>>();
vec_hamming_distance(&us1, &us2)
}
#[cfg(test)]
mod test {
use super::*;
use crate::testutils::testutils;
#[test]
fn test_hamming() {
testutils::test_distance_func("testdata/hamming.csv", hamming_distance);
}
}