Class: DO::Parser

Inherits:
Hash
  • Object
show all
Defined in:
lib/do/parser.rb

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/do/parser.rb', line 4

def initialize(*args)
  options = {}
  args.each_with_index do |arg, i|
    case arg
      # --foo=bar
      when /=/
        key, value = *arg.split("=")
        options[key.sub(/^-{1,2}/,'').to_sym] = value
      # --no-foo
      when /^-{1,2}no-(.+)/
        options[$1.to_sym] = false
      # --foo bar
      # --foo
      # -foo
      when /^-{1,2}(.+)/
        key = $1.to_sym
        value = args[i+1] && args[i+1] !~ /^-{1,2}/ ? args.delete_at(i+1) : true
        options[key] = value
    end
  end

  # Automatically map values
  options.each do |k, v|
    case v
      when /^true$/i   then options[k] = true
      when /^false$/i  then options[k] = false
      when /^\d+$/     then options[k] = v.to_i
      when /^[\d\.]+$/ then options[k] = v.to_f
      when /,/         then options[k] = v.split(",")
    end
  end

  self.replace(options)
end