(set-fontset-font "fontset-default" 'cyrillic
                  (font-spec :registry "iso10646-1" :script 'cyrillic))

             position: 89 of 100 (88%), column: 23
            character:   (displayed as  ) (codepoint 4194263, #o17777727, #x3fffd7)
              charset: eight-bit (Raw bytes 128-255)
code point in charset: 0xD7
               syntax: w   which means: word
             category: L:Left-to-right (strong)
             to input: type "C-x 8 RET 3fffd7"
          buffer code: #xD7
            file code: not encodable by coding system utf-8-dos
              display: no font available

Character code properties: customize what to show
  general-category: Cn (Other, Not Assigned)
  decomposition: (4194263) (' ')

There is an overlay here:
 From 66 to 101
  face                 hl-line
  priority             -50
  window               #<window 3 on habits.org>


There are text properties here:
  face                 (org-date)
  fontified            t
  keymap               [Show]
  line-prefix          [Show]
  mouse-face           highlight
  wrap-prefix          [Show]

                file code: not encodable by coding system utf-8-dos
                  display: no font available

raw-text:raw-text:t:3:0:Raw text, which means text contains random 8-bit codes.
Encoding text with this coding system produces the actual byte
sequence of the text in buffers and strings.  An exception is made for
characters from the `eight-bit' character set.  Each of them is encoded
into a single byte.