Function PostVimMessage

python/ycm/vimsupport.py:725–764

Display a message on the Vim status line. By default, the message is highlighted and logged to Vim command-line history (see :h history). Unset the |warning| parameter to disable this behavior. Set the |truncate| parameter to avoid hit-enter prompts (see :h hit-enter) when the message is lon

( message, warning = True, truncate = False )

# the time of writing, YCM only uses the GUI thread inside Vim (this used to
# not be the case).
def PostVimMessage( message, warning = True, truncate = False ):
  """Display a message on the Vim status line. By default, the message is
  highlighted and logged to Vim command-line history (see :h history).
  Unset the |warning| parameter to disable this behavior. Set the |truncate|
  parameter to avoid hit-enter prompts (see :h hit-enter) when the message is
  longer than the window width."""
  echo_command = 'echom' if warning else 'echo'

  # Displaying a new message while previous ones are still on the status line
  # might lead to a hit-enter prompt or the message appearing without a
  # newline so we do a redraw first.
  vim.command( 'redraw' )

  if warning:
    vim.command( 'echohl WarningMsg' )

  message = ToUnicode( message )

  if truncate:
    vim_width = GetIntValue( '&columns' )

    message = message.replace( '\n', ' ' )
    message = message.replace( '\t', ' ' )
    if len( message ) >= vim_width:
      message = message[ : vim_width - 4 ] + '...'

    old_ruler = GetIntValue( '&ruler' )
    old_showcmd = GetIntValue( '&showcmd' )
    vim.command( 'set noruler noshowcmd' )

    vim.command( f"{ echo_command } '{ EscapeForVim( message ) }'" )

    SetVariableValue( '&ruler', old_ruler )
    SetVariableValue( '&showcmd', old_showcmd )
  else:
    for line in message.split( '\n' ):
      vim.command( f"{ echo_command } '{ EscapeForVim( line ) }'" )

  if warning:
    vim.command( 'echohl None' )


def PresentDialog( message, choices, default_choice_index = 0 ):