" Vim :< command

<
<<
<<<

< <
< < <

< 42
<< 42
<<< 42

< l
< p
< #
<< l
<< p
<< #

< lp#
<< lp#

< 42 l
< 42 p
< 42 #
<< 42 l
<< 42 p
<< 42 #

< 42 lp#
<< 42 lp#

< | echo "..."
< " comment
< < | echo "..."
< < " comment
< 42 | echo "..."
< 42 " comment
< l | echo "..."
< l " comment


def Vim9Context()
  # FIXME: differentiate operator and command when operators are contained
  # <
  :<
  :< <
  :< <<

  :< <
  :< < <

  :< 42
  :< < 42
  :< << 42

  :< l
  :< p
  :< #
  :< < l
  :< < p
  :< < #

  :< lp#
  :< < lp#

  :< 42 l
  :< 42 p
  :< 42 #
  :< < 42 l
  :< < 42 p
  :< < 42 #

  :< 42 lp#
  :<< 42 lp#

  :<    | echo "..."
  :<    # comment
  :< <  | echo "..."
  :< <  # comment
  :< 42 | echo "..."
  :< 42 # comment
  :< l  | echo "..."
  :< l  # comment
enddef