Function minigrep::search_case_insensitive

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

search case insensitive

Example

let query = "safe";
let content = "\n
Rust:
safe, fast, productive.
Pick three.";
let expected = vec!["safe, fast, productive."];
assert_eq!(expected, minigrep::search_case_insensitive(query,content));