Function cmark_with_source_range 

pub fn cmark_with_source_range<'a, I, E, F>(
    event_and_ranges: I,
    source: &'a str,
    formatter: F,
) -> Result<State<'a>, Error>
where
    I: Iterator<Item = (E, Option<Range<usize>>)>,
    E: Borrow<Event<'a>>,
    F: Write,

As cmark_with_source_range_and_options, but with default Options.