pub fn normalize_whitespace(text: &str, white_space: WhiteSpace) -> Cow<'_, str>Expand description
Normalizes segment breaks and collapsible whitespace according to the
element’s white-space.
Returns Cow::Borrowed when text is already in normalized form, which
is the common case for the many short text nodes whose content has no
segment breaks, repeated spaces or leading/trailing whitespace. Only the
text that actually needs rewriting is copied.