Macro text_utils::slugify

macro_rules! slugify {
    ($text : expr) => { ... };
    ($text : expr, stop_words = $stopwords : expr) => { ... };
    ($text : expr, separator = $sep : expr) => { ... };
    ($text : expr, max_length = $len : expr) => { ... };
    ($text : expr, stop_words = $stopwords : expr, separator = $sep : expr) => { ... };
    ($text : expr, stop_words = $stopwords : expr, max_length = $len : expr) => { ... };
    ($text : expr, separator = $sep : expr, max_length = $len : expr) => { ... };
    ($text : expr, stop_words = $stopwords : expr, separator = $sep : expr,
 max_length = $len : expr) => { ... };
}