regex programs should be a must tool for a programmer

Rust Regex:

I haven't given much attention to pattern matching. but I think it should be must taught topic for every programming student. having said that,  we can get into the my example



we can get into the Rust regex crate https://crates.io/crates/regex
and https://docs.rs/regex/1.3.4/src/regex/lib.rs.html#1-785





Since Rust handles string pretty nicely, regex expression matching is quite easy even if for my native language - Malayalam

you can either create an Rust regex object with Regex::new(r"(മല)") or RegexSetBuilder::new(&[r"ജാവ"]).case_insensitive(true) .build()?;


if you really want to check each malayalam character , then you can use Regex::new(r"(p\{Malayalam}).unwrap()

For more detail how to use regex : 

https://www.regular-expressions.info/brackets.html

https://medium.com/factory-mind/regex-tutorial-a-simple-cheatsheet-by-examples-649dc1c3f285


Code details: regex malayalam search .