Object
Public: Make a new Presenter
command - a Mercenary::Command to present
Returns nothing
# File lib/mercenary/presenter.rb, line 10 def initialize(command) @command = command end
Public: Builds the command header, including the command identity and description
Returns the command header as a String
# File lib/mercenary/presenter.rb, line 40 def command_header header = "#{command.identity}" header << " -- #{command.description}" if command.description header end
Public: Builds a string representation of the whole command
Returns the string representation of the whole command
# File lib/mercenary/presenter.rb, line 49 def command_presentation msg = [] msg << command_header msg << "Usage:" msg << usage_presentation if opts = options_presentation msg << "Options:\n#{opts}" end if subcommands = subcommands_presentation msg << "Subcommands:\n#{subcommands_presentation}" end msg.join("\n\n") end
Public: Turn a print_* into a *_presentation or freak out
meth - the method being called args - an array of arguments passed to the missing method block - the block passed to the missing method
Returns the value of whatever function is called
# File lib/mercenary/presenter.rb, line 71 def method_missing(meth, *args, &block) if meth.to_s =~ /^print_(.+)$/ send("#{$1.downcase}_presentation") else super # You *must* call super if you don't handle the method, # otherwise you'll mess up Ruby's method lookup. end end
Public: Builds a string representation of the options
Returns the string representation of the options
# File lib/mercenary/presenter.rb, line 24 def options_presentation return nil unless command.options.size > 0 command.options.map(&:to_s).join("\n") end
Public: Builds a string representation of the subcommands
Returns the string representation of the subcommands
# File lib/mercenary/presenter.rb, line 32 def subcommands_presentation return nil unless command.commands.size > 0 command.commands.values.uniq.map(&:summarize).join("\n") end
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