Rust code to create Zalgo text

zalgo.rs

use rand::{Rng, thread_rng};

const ZALGO_UP: [char; 50] = 
[
    '\u{030e}', /*    ̎    */        '\u{0304}', /*    ̄    */        '\u{0305}', /*    ̅    */
    '\u{033f}', /*    ̿    */        '\u{0311}', /*    ̑    */        '\u{0306}', /*    ̆    */        '\u{0310}', /*    ̐    */
    '\u{0352}', /*    ͒    */        '\u{0357}', /*    ͗    */        '\u{0351}', /*    ͑    */        '\u{0307}', /*    ̇    */
    '\u{0308}', /*    ̈    */        '\u{030a}', /*    ̊    */        '\u{0342}', /*    ͂    */        '\u{0343}', /*    ̓    */
    '\u{0344}', /*    ̈́    */        '\u{034a}', /*    ͊    */        '\u{034b}', /*    ͋    */        '\u{034c}', /*    ͌    */
    '\u{0303}', /*    ̃    */        '\u{0302}', /*    ̂    */        '\u{030c}', /*    ̌    */        '\u{0350}', /*    ͐    */
    '\u{0300}', /*    ̀    */        '\u{0301}', /*    ́    */        '\u{030b}', /*    ̋    */        '\u{030f}', /*    ̏    */
    '\u{0312}', /*    ̒    */        '\u{0313}', /*    ̓    */        '\u{0314}', /*    ̔    */        '\u{033d}', /*    ̽    */
    '\u{0309}', /*    ̉    */        '\u{0363}', /*    ͣ    */        '\u{0364}', /*    ͤ    */        '\u{0365}', /*    ͥ    */
    '\u{0366}', /*    ͦ    */        '\u{0367}', /*    ͧ    */        '\u{0368}', /*    ͨ    */        '\u{0369}', /*    ͩ    */
    '\u{036a}', /*    ͪ    */        '\u{036b}', /*    ͫ    */        '\u{036c}', /*    ͬ    */        '\u{036d}', /*    ͭ    */
    '\u{036e}', /*    ͮ    */        '\u{036f}', /*    ͯ    */        '\u{033e}', /*    ̾    */        '\u{035b}', /*    ͛    */
    '\u{0346}', /*    ͆    */        '\u{031a}', /*    ̚    */        '\u{030d}'  /*    ̍    */
];

const ZALGO_DOWN: [char; 40] = 
[
    '\u{0317}', /*     ̗     */        '\u{0318}', /*     ̘     */        '\u{0319}', /*     ̙     */
    '\u{031c}', /*     ̜     */        '\u{031d}', /*     ̝     */        '\u{031e}', /*     ̞     */        '\u{031f}', /*     ̟     */
    '\u{0320}', /*     ̠     */        '\u{0324}', /*     ̤     */        '\u{0325}', /*     ̥     */        '\u{0326}', /*     ̦     */
    '\u{0329}', /*     ̩     */        '\u{032a}', /*     ̪     */        '\u{032b}', /*     ̫     */        '\u{032c}', /*     ̬     */
    '\u{032d}', /*     ̭     */        '\u{032e}', /*     ̮     */        '\u{032f}', /*     ̯     */        '\u{0330}', /*     ̰     */
    '\u{0331}', /*     ̱     */        '\u{0332}', /*     ̲     */        '\u{0333}', /*     ̳     */        '\u{0339}', /*     ̹     */
    '\u{033a}', /*     ̺     */        '\u{033b}', /*     ̻     */        '\u{033c}', /*     ̼     */        '\u{0345}', /*     ͅ     */
    '\u{0347}', /*     ͇     */        '\u{0348}', /*     ͈     */        '\u{0349}', /*     ͉     */        '\u{034d}', /*     ͍     */
    '\u{034e}', /*     ͎     */        '\u{0353}', /*     ͓     */        '\u{0354}', /*     ͔     */        '\u{0355}', /*     ͕     */
    '\u{0356}', /*     ͖     */        '\u{0359}', /*     ͙     */        '\u{035a}', /*     ͚     */        '\u{0323}', /*     ̣     */
    '\u{0316}'  /*     ̖     */
];

const ZALGO_MID: [char; 23] = 
[
    '\u{031b}', /*     ̛     */        '\u{0340}', /*     ̀     */        '\u{0341}', /*     ́     */
    '\u{0358}', /*     ͘     */        '\u{0321}', /*     ̡     */        '\u{0322}', /*     ̢     */        '\u{0327}', /*     ̧     */
    '\u{0328}', /*     ̨     */        '\u{0334}', /*     ̴     */        '\u{0335}', /*     ̵     */        '\u{0336}', /*     ̶     */
    '\u{034f}', /*     ͏     */        '\u{035c}', /*     ͜     */        '\u{035d}', /*     ͝     */        '\u{035e}', /*     ͞     */
    '\u{035f}', /*     ͟     */        '\u{0360}', /*     ͠     */        '\u{0362}', /*     ͢     */        '\u{0338}', /*     ̸     */
    '\u{0337}', /*     ̷     */        '\u{0361}', /*     ͡     */        '\u{0489}', /*     ҉_   */        '\u{0315}'  /*     ̕     */
];

pub fn zalgify_text(s: &str) -> String
{
    let mut rng = thread_rng();
    let mut new_text = String::with_capacity(s.len() * 2);
    for c in s.chars()
    {
        new_text.push(c);
        for _ in 0..rng.gen_range(0..8) / 2 + 1
        {
            new_text.push(ZALGO_UP[rng.gen_range(0..ZALGO_UP.len())]);
        }
        for _ in 0..rng.gen_range(0..3) / 2
        {
            new_text.push(ZALGO_MID[rng.gen_range(0..ZALGO_MID.len())]);
        }
        for _ in 0..rng.gen_range(0..4) / 2 + 1
        {
            new_text.push(ZALGO_DOWN[rng.gen_range(0..ZALGO_DOWN.len())]);
        }
    }
    new_text
}