Produces the summary text. Each line of the summary is yielded to the block
(without newline).
sdone
Already summarized short style options keyed hash.
ldone
Already summarized long style options keyed hash.
width
Width of left side (option part). In other words, the right
side(descriptionpart)startsafter+width+columns.
max
Maximum width of left side -> the options are filled within
+max+columns.
indent
Prefix string indents all summarized lines.
# File lib/optparse.rb, line 371
def summarize(sdone = [], ldone = [], width = 1, max = width - 1, indent = "")
sopts, lopts = [], [], nil
@short.each {|s| sdone.fetch(s) {sopts << s}; sdone[s] = true} if @short
@long.each {|s| ldone.fetch(s) {lopts << s}; ldone[s] = true} if @long
return if sopts.empty? and lopts.empty? # completely hidden
left = [sopts.join(', ')]
right = desc.dup
while s = lopts.shift
l = left[-1].length + s.length
l += arg.length if left.size == 1 && arg
l < max or sopts.empty? or left << ''
left[-1] << if left[-1].empty? then ' ' * 4 else ', ' end << s
end
left[0] << arg if arg
mlen = left.collect {|ss| ss.length}.max.to_i
while mlen > width and l = left.shift
mlen = left.collect {|ss| ss.length}.max.to_i if l.length == mlen
yield(indent + l)
end
while begin l = left.shift; r = right.shift; l or r end
l = l.to_s.ljust(width) + ' ' + r if r and !r.empty?
yield(indent + l)
end
self
end
