Merge pull request mgeisler#221 from mgeisler/fragments-and-words

Reformulate wrapping in terms of boxes, glue, and penalties

examples/interactive.rs

@@ -101,7 +101,7 @@ mod unix_only {
  )?;
  row += 2;
 
- let mut lines = wrap(text, options).collect::<Vec<_>>();
+ let mut lines = wrap(text, options);
  if let Some(line) = lines.last() {
  // If `text` ends with a newline, the final wrapped line
  // contains this newline. This will in turn leave the

examples/layout.rs

@@ -17,7 +17,7 @@ fn main() {
 
  for width in 15..60 {
  options.width = width;
- let lines = wrap(example, &options).collect::<Vec<_>>();
+ let lines = wrap(example, &options);
  if lines != prev_lines {
  let title = format!(" Width: {} ", width);
  println!(".{:-^1$}.", title, width + 2);