hp

PURPOSE

     Handles   special   functions   for   the   HP2640-   and
     HP2621-series terminals.

SYNOPSIS
     hp [ -e ] [ -m ]


DESCRIPTION

     The hp command reads  standard input (usually output from
     nroff), and  writes to standard output,  which is usually
     Hewlett-Packard 2640-and 2621-series terminal displays.

     If your terminal has the display enhancement feature, you
     can  display  subscripts   and  superscripts.   With  the
     mathematical-symbol  feature, you  can display  Greek and
     other special characters the same way as the 300 command,
     with two  exceptions:  hp approximates the  logical oper-
     ator NOT  with a right  arrow and  it only shows  the top
     half of the integral sign.

     For overstrike characters (characters followed by a back-
     space and  another character), if either  character is an
     underscore character, the other  appears underlined or in
     inverse video depending on terminal enhancements.

     Note:   Some  sequences  of control  characters  (reverse
     line-feeds and  backspaces) can make text  disappear from
     the display.  Tables with vertical lines generated by the
     tbl  command will  often be  missing lines  of text  con-
     taining the  bottom of  a vertical  line.  You  can avoid
     these problems by first piping the input through col, and
     then through hp.

FLAGS

     -e  Shows overstruck  characters underlined, superscripts
         in  half-bright,  and subscripts  half-bright  under-
         lined.   Otherwise, all  overstruck characters,  sub-
         scripts,  and superscripts  appear  in inverse  video
         (dark-on-light).  Use this flag  only if your display
         has the display enhancements feature.
     -m  Produces only one  blank line for any  number of suc-
         cessive blank lines in the text.

RELATED INFORMATION

     The  following  commands:   "300,"   "col,"  "eqn,  neqn,
     checkeq,"  "greek,"  "nroff, troff," and "tbl."