PrettyPrint#breakable

(?::String sep, ?::Integer width) -> void

breakable(sep=' ', width=sep.length)

# File tmp/rubies/ruby-3.4.1/lib/prettyprint.rb, line 226
def breakable(sep=' ', width=sep.length)
  group = @group_stack.last
  if group.break?
    flush
    @output << @newline
    @output << @genspace.call(@indent)
    @output_width = @indent
    @buffer_width = 0
  else
    @buffer << Breakable.new(sep, width, self)
    @buffer_width += width
    break_outmost_groups
  end
end

This says “you can break a line here if necessary”, and a width\-column text sep is inserted if a line is not broken at the point.

If sep is not specified, “ ” is used.

If width is not specified, sep.length is used. You will have to specify this when sep is a multibyte character, for example.

See also .singleline_format #break_outmost_groups .new #current_group also in 4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0

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