Tabs now align to tab stops instead of always spanning 8 spaces when
show_whitespaces is added as a highlighter.
This fixes issue #1453.
A regression test is also provided.
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Fixes#1433 although in a slightly different way than requested:
We ensure that scrolloff *displayed* lines are visible below the
cursor, not scrolloff *buffer* lines.
Homebrew advises not using homebrew/dupes anymore:
% brew install homebrew/dupes/ncurses
Warning: homebrew/dupes was deprecated. This tap is now empty as all its formulae were migrated.
...
Warning: Use ncurses instead of deprecated homebrew/dupes/ncurses
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I dedicate any and all copyright interest in this software to the
public domain. I make this dedication for the benefit of the public at
large and to the detriment of my heirs and successors. I intend this
dedication to be an overt act of relinquishment in perpetuity of all
present and future rights to this software under copyright law.
Until now, buffer had multiple recognized end coordinates, either
{ line_count, 0 } or { line_count - 1, line[line_count - 1].length }.
Now the only correct end coord is { line_count, 0 }, removing the need
for various special cases.
The previous solution, ad9b090ddf, was
failing when completion was not replacing any text, as going through
SelectionList was not permitting to replace empty ranges.
Handle replacement as first a deletion then an insert to get fast
update, as having a list of forward deletions and then a list
for forwad insertion is much faster to update than a list of
interleaved delete/insert.
Instead of highlighting full lines and then trim them to make them
fit in the window, highlight only the visible portion, and rely on
the compute_display_setup system introduced for wrapping to setup
our buffer range correctly
