Function properties::try_split

pub fn try_split<'a>(
    line: &'a str, 
    separator: Option<char>, 
    comment: Option<&'a str>
) -> Option<Property<'a>>

Attempt to parse a line, returns None if the following are true:

• line is empty
• comment is not None and line begins with comment
• separator is not None and line contains more than one separator