String reverse using wasm and rust

[kesia-hash]

Please provide me a sample code for reversing a string and check the input string is palindrome using rust and wasm

[L0uisc]

fn is_palindrome(input: &str) -> bool {
    input == reverse(input)
}

fn reverse(input: &str) -> String {
    input.chars().rev().collect()
}

[scottmcm]

Doing this properly is hard. Find a crate.

Otherwise you'll hit problems like this, using the reverse above:

Rust Playground

[L0uisc]

Of course. The actual code should be tailored for the case at hand. For example: do you consider ëte a palindrome? What about German ae, oe and ue? Do you consider their reverse to be ea, eo and eu, or a, e and u? Or ä, ö and ü? Consider my answer to be a hint to build on to encode your specific requirements.

[vmedea]

this sounds like a literal homework question

[mbrubeck]

If for some reason you need to do grapheme-cluster-aware string reversal in a no_std environment, there's a crate for that too.