Basic HTML version of Foils prepared March 30 97

Foil 71 Page Limits and Positions
(Chapter 11 of Llama Book)

From PERL4 Tutorial for CPS616 Computational Science for Information Age Course CPS616 -- February 1995. by Geoffrey C. Fox
$= or $FORMAT_LINES_PER_PAGE is number of lines to be output on each page
It can be changed in same way already described for $~. The Filehandle module can be invoked so that
$= = 66; # is equivalent to
format_lines_per_page FILEHANDLE 66; # if FILEHANDLE is currently selected
$- or $FORMAT_LINES_LEFT is the number of lines left on page for currently selected output channel
  • Reset $- to zero to force top of form
Note $^L or $FORMAT_FORMFEED which defaults to \f and is formfeed to use at top of page

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