2021-10-11 15:24:19 +03:00
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begin
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require 'fiddle'
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require 'fiddle/import'
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rescue LoadError
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module Reline::Terminfo
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def self.curses_dl
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false
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end
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end
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end
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2021-05-18 15:46:16 +03:00
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module Reline::Terminfo
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extend Fiddle::Importer
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class TerminfoError < StandardError; end
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2021-07-05 09:54:12 +03:00
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def self.curses_dl_files
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case RUBY_PLATFORM
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when /mingw/, /mswin/
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# aren't supported
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[]
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2021-07-06 17:03:09 +03:00
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when /cygwin/
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%w[cygncursesw-10.dll cygncurses-10.dll]
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when /darwin/
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%w[libncursesw.dylib libcursesw.dylib libncurses.dylib libcurses.dylib]
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2021-07-05 09:54:12 +03:00
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else
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%w[libncursesw.so libcursesw.so libncurses.so libcurses.so]
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end
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end
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2021-08-06 07:33:47 +03:00
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@curses_dl = false
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2021-05-18 15:46:16 +03:00
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def self.curses_dl
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2021-08-06 07:33:47 +03:00
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return @curses_dl unless @curses_dl == false
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2021-06-21 12:44:10 +03:00
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if RUBY_VERSION >= '3.0.0'
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# Gem module isn't defined in test-all of the Ruby repository, and
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# Fiddle in Ruby 3.0.0 or later supports Fiddle::TYPE_VARIADIC.
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fiddle_supports_variadic = true
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elsif Fiddle.const_defined?(:VERSION) and Gem::Version.create(Fiddle::VERSION) >= Gem::Version.create('1.0.1')
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2021-05-18 15:46:16 +03:00
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# Fiddle::TYPE_VARIADIC is supported from Fiddle 1.0.1.
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2021-06-21 12:44:10 +03:00
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fiddle_supports_variadic = true
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else
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fiddle_supports_variadic = false
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end
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2021-08-05 20:51:10 +03:00
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if fiddle_supports_variadic and not Fiddle.const_defined?(:TYPE_VARIADIC)
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2021-07-28 17:26:41 +03:00
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# If the libffi version is not 3.0.5 or higher, there isn't TYPE_VARIADIC.
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fiddle_supports_variadic = false
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end
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2021-06-21 12:44:10 +03:00
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if fiddle_supports_variadic
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2021-07-05 09:54:12 +03:00
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curses_dl_files.each do |curses_name|
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2021-05-18 15:46:16 +03:00
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result = Fiddle::Handle.new(curses_name)
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rescue Fiddle::DLError
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next
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else
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@curses_dl = result
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break
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end
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end
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2021-08-06 07:33:47 +03:00
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@curses_dl = nil if @curses_dl == false
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2021-05-18 15:46:16 +03:00
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@curses_dl
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end
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2021-10-11 15:24:19 +03:00
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end if not Reline.const_defined?(:Terminfo) or not Reline::Terminfo.respond_to?(:curses_dl)
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2021-05-18 15:46:16 +03:00
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module Reline::Terminfo
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dlload curses_dl
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#extern 'int setupterm(char *term, int fildes, int *errret)'
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@setupterm = Fiddle::Function.new(curses_dl['setupterm'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_INT, Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)
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#extern 'char *tigetstr(char *capname)'
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@tigetstr = Fiddle::Function.new(curses_dl['tigetstr'], [Fiddle::TYPE_VOIDP], Fiddle::TYPE_VOIDP)
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2021-07-24 08:46:54 +03:00
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begin
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#extern 'char *tiparm(const char *str, ...)'
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@tiparm = Fiddle::Function.new(curses_dl['tiparm'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VARIADIC], Fiddle::TYPE_VOIDP)
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rescue Fiddle::DLError
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2021-07-23 23:43:28 +03:00
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# OpenBSD lacks tiparm
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2021-07-24 08:46:54 +03:00
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#extern 'char *tparm(const char *str, ...)'
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@tiparm = Fiddle::Function.new(curses_dl['tparm'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VARIADIC], Fiddle::TYPE_VOIDP)
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2021-07-23 23:43:28 +03:00
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end
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2022-01-01 17:03:32 +03:00
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begin
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2022-01-01 18:40:24 +03:00
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#extern 'int tigetflag(char *str)'
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2022-01-01 17:03:32 +03:00
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@tigetflag = Fiddle::Function.new(curses_dl['tigetflag'], [Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)
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rescue Fiddle::DLError
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# OpenBSD lacks tigetflag
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2022-01-01 18:40:24 +03:00
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#extern 'int tgetflag(char *str)'
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2022-01-01 17:03:32 +03:00
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@tigetflag = Fiddle::Function.new(curses_dl['tgetflag'], [Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)
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end
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2022-01-02 04:17:33 +03:00
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begin
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#extern 'int tigetnum(char *str)'
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@tigetnum = Fiddle::Function.new(curses_dl['tigetnum'], [Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)
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rescue Fiddle::DLError
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# OpenBSD lacks tigetnum
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#extern 'int tgetnum(char *str)'
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@tigetnum = Fiddle::Function.new(curses_dl['tgetnum'], [Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)
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end
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2021-05-18 15:46:16 +03:00
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def self.setupterm(term, fildes)
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errret_int = String.new("\x00" * 8, encoding: 'ASCII-8BIT')
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ret = @setupterm.(term, fildes, errret_int)
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2021-09-22 12:14:13 +03:00
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errret = errret_int.unpack1('i')
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2021-05-18 15:46:16 +03:00
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case ret
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when 0 # OK
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0
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when -1 # ERR
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case errret
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when 1
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raise TerminfoError.new('The terminal is hardcopy, cannot be used for curses applications.')
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when 0
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raise TerminfoError.new('The terminal could not be found, or that it is a generic type, having too little information for curses applications to run.')
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when -1
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raise TerminfoError.new('The terminfo database could not be found.')
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else # unknown
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-1
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end
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else # unknown
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-2
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end
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end
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2021-06-24 12:04:02 +03:00
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class StringWithTiparm < String
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def tiparm(*args) # for method chain
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2021-05-19 11:57:30 +03:00
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Reline::Terminfo.tiparm(self, *args)
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end
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2021-06-24 12:04:02 +03:00
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end
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def self.tigetstr(capname)
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2022-01-02 05:44:45 +03:00
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raise TerminfoError, "capname is not String: #{capname.inspect}" unless capname.is_a?(String)
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2021-08-06 07:34:25 +03:00
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capability = @tigetstr.(capname)
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case capability.to_i
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when 0, -1
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raise TerminfoError, "can't find capability: #{capname}"
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end
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StringWithTiparm.new(capability.to_s)
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2021-05-18 15:46:16 +03:00
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end
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def self.tiparm(str, *args)
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new_args = []
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args.each do |a|
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new_args << Fiddle::TYPE_INT << a
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end
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2021-05-19 11:53:17 +03:00
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@tiparm.(str, *new_args).to_s
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2021-05-18 15:46:16 +03:00
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end
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2022-01-01 17:03:32 +03:00
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def self.tigetflag(capname)
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2022-01-02 05:44:45 +03:00
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raise TerminfoError, "capname is not String: #{capname.inspect}" unless capname.is_a?(String)
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2022-01-01 17:03:32 +03:00
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flag = @tigetflag.(capname).to_i
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case flag
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when -1
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raise TerminfoError, "not boolean capability: #{capname}"
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when 0
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raise TerminfoError, "can't find capability: #{capname}"
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end
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flag
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end
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2022-01-02 04:17:33 +03:00
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def self.tigetnum(capname)
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2022-01-02 05:44:45 +03:00
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raise TerminfoError, "capname is not String: #{capname.inspect}" unless capname.is_a?(String)
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2022-01-02 04:17:33 +03:00
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num = @tigetnum.(capname).to_i
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case num
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when -2
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raise TerminfoError, "not numeric capability: #{capname}"
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when -1
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raise TerminfoError, "can't find capability: #{capname}"
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end
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num
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end
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2021-05-18 15:46:16 +03:00
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def self.enabled?
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true
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end
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end if Reline::Terminfo.curses_dl
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module Reline::Terminfo
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def self.enabled?
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false
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end
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end unless Reline::Terminfo.curses_dl
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