Function minigrep_icy::search_case_insensitive

pub fn search_case_insensitive<'a>(
    query: &str, 
    contents: &'a str
) -> Vec<&'a str>

Example

let contents = "\
Rust:
rusT:
safe, fast, productive.";
let res = minigrep_icy::search_case_insensitive("rUSt",contents);
assert_eq!(vec!["Rust:","rusT:"],res)