Scientific Operations



LP(IV)                       5/27/74                       LP(IV)



NAME
     lp - line printer

DESCRIPTION
     Lp  provides  the  interface to any of the standard DEC line
     printers.  When it is opened or closed, a suitable number of
     page ejects is generated.  Bytes written are printed.

     An  internal  parameter within the driver determines whether
     or not the device is treated as having a 96- or 64-character
     set.  In half-ASCII mode, lower case letters are turned into
     upper case and certain characters are escaped  according  to
     the following table:

          {    (-
          }    )-
          `    '-
          |    !-
          ~    ^-

     The    driver   correctly   interprets   carriage   returns,
     backspaces, tabs, and form feeds.  A  sequence  of  newlines
     which  extends  over the end of a page is turned into a form
     feed.  All lines are indented 8  characters.   Lines  longer
     than 80 characters are truncated.  These numbers are parame-
     ters in the driver; another parameter allows  indenting  all
     printout if it is unpleasantly near the left margin.

FILES
     /dev/lp

SEE ALSO
     lpr(I)

BUGS
     Half-ASCII  mode,  the  indent  and  the maximum line length
     should be settable by a call analogous to stty(II).




















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