Replacing with empty strings is essentially a deletion, which means
it can end up push some selections out of the buffer (imagine 3 a
2 empty line buffer, and deleting the second one). We are fixing
the selections in SelectionList::erase, but we were not doing that
in SelectionList::insert.
Fixes#1504
Due to the way Selection::min/max worked, we were creating backward
selections, with cursor < anchor, which was triggering an assert when
trying to move cursor back one char when it was already on the first
char of the buffer.
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.
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.
When a comment was present directly on the same line after a command,
we did not correctly see the command as terminated and would join
continue parsing the next line.
The previous implementation could yield different positions when
iterating forward and backward, leading to confusion in boost regex.
This makes an existing problem a bit more visible: iterating with
to_next and with read_codepoint wont behave the same way, as
read_codepoint will put the iterator onto the byte following the
utf8 codepoint, whereas to_next will put it on the next utf8
character start byte, which might be different if the buffer content
is not valid utf8.
Fixes#1195
That means we wont have a very nice interaction between show_whitespaces
and column highlighters, but thats the simplest fix for now, if we want
a better behaviour we need to introduce a way to know that a replaced
range is splittable (meaning it means to have the same amount of columns
as the range it replaces)
Fixes#1275
Add a ColumnCount type and use it in place of CharCount whenever
more appropriate, take column size of codepoints into account for
vertical movements and docstring wrapping.
Fixes#811
Client quitting no longer immediately unwinds, client is just pushed
for deletion until we get back to the main loop, similarly to what
happens for buffer and window deletion.
That way we get proper unicode support in regular expressions as long
as the current locale treats wchar_t as unicode codepoints.
Fixes#638Fixes#595Fixes#162
