The Text input converter converts a Text (ISO Latin1) input file
    to an intermediate format that is then converted to the specified
    output file format. The information in the text input file maps
    directly to an intermediate representation. Line breaks and form
    feeds are mapped to DDIF directives. One or more contiguous blank
    lines are interpreted as end-of-paragraph markers.

    If the text input file was entered as a DEC Multinational
    Character Set file on a character-cell terminal or terminal
    emulator, the following conversions occur:

    Original Character      Converted Character

    Concurrency sign        Diaeresis
    Capital OE ligature     Multiplication sign
    Capital Y with          Capital Y with acute accent
    diaeresis
    Small oe ligature       Division sign
    Small y with diaeresis  Y with acute accent

    The text input file does not lose any text when converted
    to the intermediate representation because no structure
    information is contained in a text file. All nonprinting
    characters are converted to space characters. For example,
    characters introducing ANSI escape characters are converted to
    space characters. There is no attempt to interpret ANSI escape
    sequences.