add-ed 0.6.0

Embeddable pure rust editor based on ED
Documentation 
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// The function to extract a filename if any in given input
pub fn parse_path(input: &str)
  -> Option<&str>
{
  let trimmed = input.trim_start();
  if trimmed.len() == 0 {
    None
  }
  else {
    Some(trimmed)
  }
}