Readline.output.



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  indent.

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  add Readline.point=(pos). Patched by naruse.  [ruby-dev:47535]
  [Feature #8675]

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rl_delete_text removes characters in line_buffer, but it doesn't move rl_point.
Therefore it may cause invalid rl_point.

On following case, test_input_metachar causes test_insert_text failure.
(test_input_metachar_multibyte) is skipped because of locale)
http://c5664.rubyci.org/~chkbuild/ruby-trunk/log/20130723T133302Z.log.html.gz

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  Readline.delete_text. [ruby-dev:45789] [Feature #6626]
* ext/readline/extconf.rb: check for rl_delete_text() in Readline library.

  Thanks, Nobuyoshi Nakada, for the patch.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42101 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  when $SAFE is set to 4.  $SAFE=4 is now obsolete.
  [ruby-core:55222] [Feature #8468]

* object.c (rb_obj_untrusted, rb_obj_untrust, rb_obj_trust):
  Kernel#untrusted?, untrust, and trust are now deprecated.
  Their behavior is same as tainted?, taint, and untaint,
  respectively.

* include/ruby/ruby.h (OBJ_UNTRUSTED, OBJ_UNTRUST): OBJ_UNTRUSTED()
  and OBJ_UNTRUST() are aliases of OBJ_TAINTED() and OBJ_TAINT(),
  respectively.

* array.c, class.c, debug.c, dir.c, encoding.c, error.c, eval.c,
  ext/curses/curses.c, ext/dbm/dbm.c, ext/dl/cfunc.c,
  ext/dl/cptr.c, ext/dl/dl.c, ext/etc/etc.c, ext/fiddle/fiddle.c,
  ext/fiddle/pointer.c, ext/gdbm/gdbm.c, ext/readline/readline.c,
  ext/sdbm/init.c, ext/socket/ancdata.c, ext/socket/basicsocket.c,
  ext/socket/socket.c, ext/socket/udpsocket.c,
  ext/stringio/stringio.c, ext/syslog/syslog.c, ext/tk/tcltklib.c,
  ext/win32ole/win32ole.c, file.c, gc.c, hash.c, io.c, iseq.c,
  load.c, marshal.c, object.c, proc.c, process.c, random.c, re.c,
  safe.c, string.c, thread.c, transcode.c, variable.c,
  vm_insnhelper.c, vm_method.c, vm_trace.c: remove code for
  $SAFE=4.

* test/dl/test_dl2.rb, test/erb/test_erb.rb,
  test/readline/test_readline.rb,
  test/readline/test_readline_history.rb, test/ruby/test_alias.rb,
  test/ruby/test_array.rb, test/ruby/test_dir.rb,
  test/ruby/test_encoding.rb, test/ruby/test_env.rb,
  test/ruby/test_eval.rb, test/ruby/test_exception.rb,
  test/ruby/test_file_exhaustive.rb, test/ruby/test_hash.rb,
  test/ruby/test_io.rb, test/ruby/test_method.rb,
  test/ruby/test_module.rb, test/ruby/test_object.rb,
  test/ruby/test_pack.rb, test/ruby/test_rand.rb,
  test/ruby/test_regexp.rb, test/ruby/test_settracefunc.rb,
  test/ruby/test_struct.rb, test/ruby/test_thread.rb,
  test/ruby/test_time.rb: remove tests for $SAFE=4.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41259 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  test/mkmf/test_have_macro.rb, test/net/http/test_http.rb,
  test/openssl/test_config.rb, test/psych/test_encoding.rb,
  test/psych/test_exception.rb, test/psych/test_psych.rb,
  test/psych/test_tainted.rb, test/readline/test_readline.rb,
  test/rexml/test_contrib.rb, test/ruby/test_autoload.rb,
  test/ruby/test_beginendblock.rb, test/ruby/test_exception.rb,
  test/ruby/test_file.rb, test/ruby/test_io.rb,
  test/ruby/test_marshal.rb, test/ruby/test_process.rb,
  test/ruby/test_require.rb, test/ruby/test_rubyoptions.rb,
  test/syslog/test_syslog_logger.rb, test/webrick/test_httpauth.rb,
  test/zlib/test_zlib.rb: Use Tempfile.create.



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