* Update description of `m` textobject to its actual functionality
Sometime recently the functionality of `m` was changed to match the
nearest pair to the cursor, rather than the former functionality of
matching the pair only if the cursor was on one of the brace characters
directly.
* Rename surround methods to reflect that they work on pairs
The current naming suggests that they may work generally on any
textobject, whereas their implementation really focuses on pairs.
* Change description of m textobject to match actual functionality
The current implementation of `m` no longer merely looks at the pair
character the cursor is on, but actually will search for the pair
(defined in helix-core/src/surround.rs) that encloses the cursor, and
not the entire selection.
* Accept suggested wording change
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* Prefix pair surround for consistency
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* Make textobject select last paragraph
Last paragraph shoud be selected if the cursor was placed on the
whitespace paragraph part and `map` is done, otherwise it would do
nothing useful, but now we select backwards for the last paragraph
which behaves similarly to kakoune, making `map` useful for the last
paragraph with whitespace. Example usecase is to copy and paste last
ledger cli paragraph quickly by `mapyp` to duplicate last entry.
* Fix typo in core textobject
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
Fixes#1077. This was caused by the assumption that a block
cursor is represented as zero width internally and simply
rendered to be a single width selection, where as in reality
a block cursor is an actual single width selection in form and
function.
Behavioural changes:
1. Surround selection no longer works when cursor is _on_ a
surround character that has matching pairs (like `'`
or `"`). This was the intended behaviour from the start
but worked till now because of the cursor position
calculation mismatch.
* Add treesitter textobject queries
Only for Go, Python and Rust for now.
* Add tree-sitter textobjects
Only has functions and class objects as of now.
* Fix tests
* Add docs for tree-sitter textobjects
* Add guide for creating new textobject queries
* Add parameter textobject
Only parameter.inside is implemented now, parameter.around
will probably require custom predicates akin to nvim' `make-range`
since we want to select a trailing comma too (a comma will be
an anonymous node and matching against them doesn't work similar
to named nodes)
* Simplify TextObject cell init
* Fix around-word text-object selection.
* Text object around-word: select to the left if no whitespace on the right.
Also only select around when there's whitespace at all.
* Make select-word-around select all white space on a side.
* Update commented-out test case.
* Fix unused import warning from rebase.
For example when the cursor is _on_ the `'` in `'word'`, the cursor
wouldn't move because the search for a matching pair started _from_ the
position of the cursor and simply found itself.
* Add textobjects for word
* Add textobjects for surround characters
* Apply clippy lints
* Remove ThisWordPrevBound in favor of PrevWordEnd
It's the same as PrevWordEnd except for taking the current char
into account, so use a "flag" to capture that usecase
* Add tests for PrevWordEnd movement
* Remove ThisWord* movements
They did not preserve anchor positions and were only used
for textobject boundary search anyway so replace them with
simple position finding functions
* Rewrite tests of word textobject
* Add tests for surround textobject
* Add textobject docs
* Refactor textobject word position functions
* Apply clippy lints on textobject
* Fix overflow error with textobjects