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If there exist multiple cursors, [n/m] is added to the status bar.
Meaning the n-th cursor out of the existing m cursors is currently
the primary one.
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Do not crash if for some reason view->{start,end} have outdated values.
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indicating whether cursor could be removed
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We place the end mark inside the selection as opposted to on the character
immediately following it. This is better when selections are touching each
other. Previously for two seletions [a][b] the end mark for selection
a would be at the same location as the start mark of selection b. Thus
when for example the content of selection b is deleted it would also
destroy selection a, because the end mark would no longer be valid.
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Fail if there is already a cursor located at the requested position.
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The number of columns i.e. maximal number of cursors located on the
same line can be obtained by view_cursors_column_count.
Column addressing is zero based, valid indexes are [0, max-1].
Assuming there is a cursor on every letter:
a
b c
d e f
g h
i
max column would be 3, and the following would iterate over the
cursors forming the second column [c, e, h]:
for (Cursor *c = view_cursors_column(view, 1); c; c = view_cursors_column_next(c, 1))
...
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This is currently only enforced upon creation i.e. we assume
that after creation a cursor can not change its relative ordering
with respect to its neighbors.
The existing code assumes that when iterating through cursors with:
for (Cursor *c = view_cursors(view); c; c = view_cursors_next(c))
...
new cursors created with view_cursors_new do not show up.
This assumption is preserved under the following conditions:
* it only holds for the most recent view_cursors call
As a consequence when doing nested iterations new cursors
will be yielded once the inner view_cursors call was performed.
* view_cursors_primary_get is not called
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This for example affects the default background color and cursor
related settings.
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The currently visible display port is always adjusted
in a way that the primary cursor is visible.
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Allow colorcolumn to be greater than the view width.
Lines that wrap now have the colorcolumn highlighted.
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That is from now on use vis:method instead of vis.method
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This allows them to be placed into the read only ELF section.
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Disable absolute line numbers for large files (currently
anything bigger than 32MiB). This speeds up moving around
with for example nn% since no new lines need to be calculated.
Of course movements like :nn will be unaffected.
The optimizations can be disabled by explicitly enabling
absolute line numbers as in :set number
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Close #148
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It returns the range covered by the selection of the primary cursor.
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This reverts 2f4b69cc67e8863e5789817ed5097158e6163621. There are
likely still some problems left when editing the end of a file
at end of the visual area.
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Holding down <Backspace> at the end of the file should not
keep the cursor on the middle line of the window.
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The last new line is added to the cell matrix but failure
is reported to indicate that there is no space left for
further characters.
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This for example now correctly displays tab characters at
the very start of the visible area.
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Lua support can now be disabled at compile time using:
$ make CONFIG_LUA=0
This commit also adds an initial Lua API and provides a few
default hooks.
We now also require Lua >= 5.2 due to the uservalue constructs.
In principle the same functionality could be implemented using
function environments from Lua 5.1.
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The only used event handler was used to update the '< and '>
marks which is now taken care of by the leave handler of the
visual modes.
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They now belong to the cell holding the corresponding regular
(i.e. non-combining) character. This also means that at least
in theory a cell could hold arbitrary amounts of data, in
practice it is limited to 16 bytes.
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Increase the number of bytes to consider for syntax highligthing
before the visisble area. This should improve the handling of long
block comments.
Closes #110
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When a file was being displayed in multiple windows changes in one
could confuse the other.
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If a change occured on the very first shown character, it was not
properly reflected in the view.
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For now the vis table has only one member "lexers".
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The view_draw function renders the text into the cells
array and resyncs the cursor position. The syntax
highlighting is applied in view_update, which also
instructs the ui to update.
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