pub fn word_count(text: &str) -> usize {
text.split_whitespace()
.filter(|word| word.chars().any(char::is_alphanumeric))
.count()
}
pub fn escape_html(value: &str) -> String {
value
.replace('&', "&")
.replace('<', "<")
.replace('>', ">")
.replace('"', """)
}