# File text/format.rb, line 948
 948:     def initialize(arg = nil, &block)
 949:       case arg
 950:       when Text::Format
 951:         __create(arg.text) do
 952:           @columns        = arg.columns
 953:           @tabstop        = arg.tabstop
 954:           @first_indent   = arg.first_indent
 955:           @body_indent    = arg.body_indent
 956:           @format_style   = arg.format_style
 957:           @left_margin    = arg.left_margin
 958:           @right_margin   = arg.right_margin
 959:           @extra_space    = arg.extra_space
 960:           @tag_paragraph  = arg.tag_paragraph
 961:           @tag_text       = arg.tag_text
 962:           @abbreviations  = arg.abbreviations
 963:           @nobreak        = arg.nobreak
 964:           @nobreak_regex  = arg.nobreak_regex
 965:           @text           = arg.text
 966:           @hard_margins   = arg.hard_margins
 967:           @split_words    = arg.split_words
 968:           @split_rules    = arg.split_rules
 969:           @hyphenator     = arg.hyphenator
 970:         end
 971:         instance_eval(&block) unless block.nil?
 972:       when Hash
 973:         __create do
 974:           @columns       = arg[:columns]       || arg['columns']       || @columns
 975:           @tabstop       = arg[:tabstop]       || arg['tabstop']       || @tabstop
 976:           @first_indent  = arg[:first_indent]  || arg['first_indent']  || @first_indent
 977:           @body_indent   = arg[:body_indent]   || arg['body_indent']   || @body_indent
 978:           @format_style  = arg[:format_style]  || arg['format_style']  || @format_style
 979:           @left_margin   = arg[:left_margin]   || arg['left_margin']   || @left_margin
 980:           @right_margin  = arg[:right_margin]  || arg['right_margin']  || @right_margin
 981:           @extra_space   = arg[:extra_space]   || arg['extra_space']   || @extra_space
 982:           @text          = arg[:text]          || arg['text']          || @text
 983:           @tag_paragraph = arg[:tag_paragraph] || arg['tag_paragraph'] || @tag_paragraph
 984:           @tag_text      = arg[:tag_text]      || arg['tag_text']      || @tag_text
 985:           @abbreviations = arg[:abbreviations] || arg['abbreviations'] || @abbreviations
 986:           @nobreak       = arg[:nobreak]       || arg['nobreak']       || @nobreak
 987:           @nobreak_regex = arg[:nobreak_regex] || arg['nobreak_regex'] || @nobreak_regex
 988:           @hard_margins  = arg[:hard_margins]  || arg['hard_margins']  || @hard_margins
 989:           @split_rules   = arg[:split_rules] || arg['split_rules'] || @split_rules
 990:           @hyphenator    = arg[:hyphenator] || arg['hyphenator'] || @hyphenator
 991:         end
 992:         instance_eval(&block) unless block.nil?
 993:       when String
 994:         __create(arg, &block)
 995:       when NilClass
 996:         __create(&block)
 997:       else
 998:         raise TypeError
 999:       end
1000:     end