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renumber() isn't NULL, and update related comments


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functions' append parameter an enum instead of an int


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to wnoutrefresh() calls, except for those in total_update() and
do_credits(); call doupdate() just before using blocking input, since
nano spends the most time using it, for blocking input; and only do
constant sursor position display if we're just about to use blocking
input


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its last line when all its lines are numbered properly, use that in
place of openfile->totlines, and eliminate references to
openfile->totlines


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spell checking, justifying, and word counting) to their own source file,
text.c


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on a file


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openfilestruct functions to nano.c, since they're no longer specific to
file operations


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number of characters, and eliminate dependence on its old ability to get
the total number of lines by renumber()ing when necessary and using the
number of the last line of a filestruct


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edit_refresh(); edit_update() is only called without edit_refresh() in
do_gotolinecolumn() if allow_update is FALSE, and in edit_refresh()
itself if edittop is out of range of current


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"+LINE,COLUMN" arguments on the command line, don't update the screen
when moving to their specified lines and columns


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calls, which do the same thing


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that the values in it are used directly instead of being periodically
synced up with the globals; accordingly, remove the globals; this
changes pretty much every function


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ssize_t are different sizes.  Make filestruct->lineno a ssize_t (so that
we can avoid negative line numbers at the "Go To Line" prompt),
current_y a ssize_t (in order to hold the maximum difference between two
filestruct->lineno's), totlines a size_t, and change related variables
to match


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