Keyword completion module. This allows partial arguments to be specified and resolved against a list of acceptable values.
# File optparse.rb, line 411 def self.candidate(key, icase = false, pat = nil, &block) pat ||= Completion.regexp(key, icase) candidates = [] block.call do |k, *v| (if Regexp === k kn = "".freeze k === key else kn = defined?(k.id2name) ? k.id2name : k pat === kn end) or next v << k if v.empty? candidates << [k, v, kn] end candidates end
# File optparse.rb, line 428 def candidate(key, icase = false, pat = nil) Completion.candidate(key, icase, pat, &method(:each)) end
# File optparse.rb, line 433 def complete(key, icase = false, pat = nil) candidates = candidate(key, icase, pat, &method(:each)).sort_by {|k, v, kn| kn.size} if candidates.size == 1 canon, sw, * = candidates[0] elsif candidates.size > 1 canon, sw, cn = candidates.shift candidates.each do |k, v, kn| next if sw == v if String === cn and String === kn if cn.rindex(kn, 0) canon, sw, cn = k, v, kn next elsif kn.rindex(cn, 0) next end end throw :ambiguous, key end end if canon block_given? or return key, *sw yield(key, *sw) end end