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File#join とか File#split とか使った事ないんですが…
ファイル名を扱うクラスがあればいいなと思って、
ruby の勉強を兼ねてこんなクラスを作ってます。

他の人達と方向が多少(?)ずれてるような気がしますが、
こんな考え方もあるということで…。(^^;

# まだ作りかけなのでバグがあったり機能が不足してたりします。


----
馬越

Attachments (2)

FileName.rb (1.84 KB, text/x-ruby)

class FileName < String
  PF_UNIX = 0
  PF_WINDOWS = 1
  PF_DOS = 2

  case RUBY_PLATFORM
  when /cygwin|mswin32|mingw/
    PLATFORM = PF_WINDOWS
    Separator = '\\'
    Separators = '\\/'
  when /djgpp/
    PLATFORM = PF_DOS
    Separator = '\\'
    Separators = Separator
  else
    PLATFORM = PF_UNIX
    Separator = '/'
    Separators = Separator
  end
  PSeparator = Regexp.new(Regexp.quote(Separator))
  PSeparators = Regexp.new(Regexp.quote(Separators))

  if defined?(casecmp)
    alias icasecmp casecmp
  else
    def icasecmp(name)
      upcase.casecmp(name.upcase)
    end
  end
  alias casecmp <=>

  def <=>(name)
    case PLATFORM
    when PF_WINDOWS || PF_DOS
      icasecmp(name)
    else # unix
      casecmp(name)
    end
  end

  def clean
    clean(self)
  end

  def FileName.clean(path)
    case PLATFORM
    when PF_WINDOWS || PF_DOS
      case path
      when /^[#{Separators}]{2}/o
        is_unc = true if PLATFORM == PF_WINDOWS
      when /^([a-zA-Z]:)(.*)/
        is_drv = true
        drv = $1
        path = $2
      end
      paths = path.gsub(/[#{Separators}]+/o, Separator).split(PSeparator)
    else # unix
      paths = path.gsub(/#{Separator}{2,}/o, Separator).split(PSeparator)
    end

    clean_paths = Array.new
    paths.each do |elm|
      case elm
      when '.'
        # abandon
      when '..'
        if clean_paths.size == 0 || clean_paths[-1] == '..'
          clean_paths.push(elm)
        elsif clean_paths.size == 1 && clean_paths[0] == ''
          # abandon
        else
          clean_paths.pop 
        end
      else
        clean_paths.push(elm)
      end
    end

    if clean_paths[0] == ''
      if is_drv
        head = drv
      elsif is_unc
        head = Separator
      else
        head = ''
      end
    elsif is_drv
      head = drv
    else
      head = ''
    end
    head + clean_paths.join(Separator)
  end

end

TestFileName.rb (2.73 KB, application/x-sh)

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[ruby-list:31079] Re: File#join

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