JezK
Edit File: number.rb
# Provides a numbering object that will produce numbers. Accepts three # parameters for numbering that will control how the numbers are presented # when given as #[](index). # # <tt>:offset</tt>:: The number to add to the index in order to produce # the proper index. This is because #tag_text indexes # from 0, not 1. This defaults to 1. # <tt>:postfix</tt>:: The value that will be appended to the number # presented by #[]. Defaults to +nil+. # <tt>:prefix</tt>:: The value that will be prepended to the number # presented by #[]. Defaults to +nil+. # # n1 = Text::Format::Number.new(:postfix => ".") # puts n1[0] # => "1." # puts n1[1] # => "2. # # n2 = Text::Format::Number.new(:prefix => "2.") # puts n2[0] # => "2.1" # puts n2[1] # => "2.2" # # n3 = Text::Format::Number.new(:offset => 3) # puts n3[0] # => "3" # puts n3[1] # => "4" class Text::Format::Number def [](index) "#{@prefix}#{index + @offset}#{@postfix}" end def initialize(options = {}) #:yields self: @offset = options[:offset].to_i || 1 @postfix = options[:postfix] || nil @prefix = options[:prefix] || nil end end