Method: NanDoc::Cli::OptionMethods::OptionEnum#parse

Defined in:
lib/nandoc/cli/option-methods/option-enum.rb

#parse(opts) ⇒ Object 



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# File 'lib/nandoc/cli/option-methods/option-enum.rb', line 22

def parse opts
  found = nil
  if opts.key?(@name)
    v = opts[@name]
    re = /\A#{Regexp.escape(v)}/
    founds = @values.grep(re)
    case founds.size
      when 0; invalid(v)
      when 1; found = founds.first
      else found = founds.detect{|f| f==v} or too_many(founds)
    end
  elsif(@default)
    found = @default
  else
    found = nil
  end
  opts[@name] = found if found # normalize short versions
  found
end