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Module: Reline::Terminfo

Relationships & Source Files
Namespace Children
Classes:
StringWithTiparm
Exceptions:
TerminfoError
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Fiddle::Importer, Fiddle::Importer
Defined in: lib/reline/terminfo.rb,
lib/reline/terminfo.rb,
lib/reline/terminfo.rb

Class Attribute Summary

Class Method Summary

Class Attribute Details

.enabled? ⇒ Boolean (readonly)

NOTE: This means Fiddle and curses are enabled.

See additional method definition at line 140.

[ GitHub ] 

  


# File 'lib/reline/terminfo.rb', line 150



def self.enabled?
  true
end


  








  

    .term_supported?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'lib/reline/terminfo.rb', line 144



def self.term_supported?
  @term_supported
end


  







Class Method Details



  

    .curses_dl  
  

  [ GitHub ]


  

  


# File 'lib/reline/terminfo.rb', line 32



def self.curses_dl
  return @curses_dl unless @curses_dl == false
  if Fiddle.const_defined?(:TYPE_VARIADIC)
    curses_dl_files.each do |curses_name|
      result = Fiddle::Handle.new(curses_name)
    rescue Fiddle::DLError
      next
    else
      @curses_dl = result
      break
    end
  end
  @curses_dl = nil if @curses_dl == false
  @curses_dl
end


  








  

    .curses_dl_files  
  

  [ GitHub ]


  

  


# File 'lib/reline/terminfo.rb', line 17



def self.curses_dl_files
  case RUBY_PLATFORM
  when /mingw/, /mswin/
    # aren't supported
    []
  when /cygwin/
    %w[cygncursesw-10.dll cygncurses-10.dll]
  when /darwin/
    %w[libncursesw.dylib libcursesw.dylib libncurses.dylib libcurses.dylib]
  else
    %w[libncursesw.so libcursesw.so libncurses.so libcurses.so]
  end
end


  








  

    .setupterm(term, fildes)  
  

  [ GitHub ]


  

  


# File 'lib/reline/terminfo.rb', line 80



def self.setupterm(term, fildes)
  errret_int = Fiddle::Pointer.malloc(Fiddle::SIZEOF_INT)
  ret = @setupterm.(term, fildes, errret_int)
  case ret
  when 0 # OK
    @term_supported = true
  when -1 # ERR
    @term_supported = false
  end
end


  








  

    .tigetflag(capname)  
  



  

    
  





  
Raises:





  [ GitHub ]


  

  


# File 'lib/reline/terminfo.rb', line 115



def self.tigetflag(capname)
  raise TerminfoError, "capname is not String: #{capname.inspect}" unless capname.is_a?(String)
  flag = @tigetflag.(capname).to_i
  case flag
  when -1
    raise TerminfoError, "not boolean capability: #{capname}"
  when 0
    raise TerminfoError, "can't find capability: #{capname}"
  end
  flag
end


  








  

    .tigetnum(capname)  
  



  

    
  





  
Raises:





  [ GitHub ]


  

  


# File 'lib/reline/terminfo.rb', line 127



def self.tigetnum(capname)
  raise TerminfoError, "capname is not String: #{capname.inspect}" unless capname.is_a?(String)
  num = @tigetnum.(capname).to_i
  case num
  when -2
    raise TerminfoError, "not numeric capability: #{capname}"
  when -1
    raise TerminfoError, "can't find capability: #{capname}"
  end
  num
end


  








  

    .tigetstr(capname)  
  



  

    
  





  
Raises:





  [ GitHub ]


  

  


# File 'lib/reline/terminfo.rb', line 97



def self.tigetstr(capname)
  raise TerminfoError, "capname is not String: #{capname.inspect}" unless capname.is_a?(String)
  capability = @tigetstr.(capname)
  case capability.to_i
  when 0, -1
    raise TerminfoError, "can't find capability: #{capname}"
  end
  StringWithTiparm.new(capability.to_s)
end


  








  

    .tiparm(str, *args)  
  

  [ GitHub ]


  

  


# File 'lib/reline/terminfo.rb', line 107



def self.tiparm(str, *args)
  new_args = []
  args.each do |a|
    new_args << Fiddle::TYPE_INT << a
  end
  @tiparm.(str, *new_args).to_s
end