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This also resulted in rewriting some of the methodology behind the
display functions (yet again).


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@21 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

check_wrap() for when a wrapped line needs to be wrapped when SAMELINEWRAP is set.


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Please try this and let me know if it doesn't work!


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that we have been seeing on lines with tabs.

It introduces the concept of "pages" which might not be the best choice
for them.... Basically, it's the part of a line that would be visible on
screen at once.  the first part (visible when you open a file) is page
1... the second (you have to scroll to the right approx COLS, is 2.  The
third is at approx (2 * COLS) - 7 and so on...)

It's not terribly efficient as of yet, there are probabally quite a few
redundant calls to xpt(), for instance.


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