### Home Classes Methods

### In Files

- lib/rbot/core/utils/extends.rb

### Methods

- #conjoin

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# Enumerable

### Public Instance Methods

conjoin(*args, &block) click to toggle source

This method is an advanced version of join allowing fine control of separators:

    [1,2,3].conjoin(', ', ' and ')
    => "1, 2 and 3

    [1,2,3,4].conjoin{ |i, a, b| i % 2 == 0 ? '.' : '-' }
    => "1.2-3.4"

Code lifted from the ruby facets project: <facets.rubyforge.org> git-rev: c8b7395255b977d3c7de268ff563e3c5bc7f1441 file: lib/core/facets/array/conjoin.rb

    # File lib/rbot/core/utils/extends.rb, line 143
    def conjoin(*args, &block)
      num = count - 1

      return first.to_s if num < 1

      sep = []

      if block_given?
        num.times do |i|
          sep << yield(i, *slice(i, 2))
        end
      else
        options = (Hash === args.last) ? args.pop : {}
        separator = args.shift || ""
        options[-1] = args.shift unless args.empty?

        sep = [separator] * num

        if options.key?(:last)
          options[-1] = options.delete(:last)
        end
        options[-1] ||= _(" and ")

        options.each{ |i, s| sep[i] = s }
      end

      zip(sep).join
    end

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