Function lix

pub fn lix(text: &str) -> f64

Lix

Indicates the difficulty of reading a text

Requires counting words, sentences, and long words (see get_long_word_count)

“Lix” is an abbreviation of läsbarhetsindex, which means “readability index” in Swedish

See https://en.wikipedia.org/wiki/Lix_(readability_test) for more information