When a new View of a Document is created, a default cursor of 0, 0 is
created, and it does not get normalized to a single width cursor until
at least one movement of the cursor happens. This appears to have no
practical negative effect that I could find, but it makes tests difficult
to work with, since the initial selection is not what you expect it to be.
This changes the initial selection of a new View to be the width of the
first grapheme in the text.
* impl auto pairs config
Implements configuration for which pairs of tokens get auto completed.
In order to help with this, the logic for when *not* to auto complete
has been generalized from a specific hardcoded list of characters to
simply testing if the next/prev char is alphanumeric.
It is possible to configure a global list of pairs as well as at the
language level. The language config will take precedence over the
global config.
* rename AutoPair -> Pair
* clean up insert_char command
* remove Rc
* remove some explicit cloning with another impl
* fix lint
* review comments
* global auto-pairs = false takes precedence over language settings
* make clippy happy
* print out editor config on startup
* move auto pairs accessor into Document
* rearrange auto pair doc comment
* use pattern in Froms
Auto pairs were resulting in incorrect ranges in the resulting when the
line terminators are CRLF (i.e. Windows). It turns out this is because
when we were checking if the selection was a single-width cursor, it
incorrectly assumed that this would be a single char. This is not the
case, as a cursor can cover a multi-code point grapheme. Therefore,
we must instead explicitly work with and check graphemes to determine
if the cursor should move or extend the selection.
Fixes#1436
* use auto pairs with selections
Previously, the auto pairs code was converting the user selection into
its cursor form, and setting the transaction's selection to that cursor.
This has the effect of destroying the user's selection if they type a
pair character that gets auto completed.
This fixes the code to work with the user's selection, inserting auto
pairs where appropriate, but either keeping or extending the user's
selection.
* use movement::Direction instead of bool
* assume 0-width cursor is forward
* Add auto pairs for same-char pairs
* Add unit tests for all existing functionality
* Add auto pairs for same-char pairs (quotes, etc). Account for
apostrophe in prose by requiring both sides of the cursor to be
non-pair chars or whitespace. This also incidentally will work for
avoiding a double single quote in lifetime annotations, at least until
<> is added
* Slight factor of moving the cursor transform of the selection to
inside the hooks. This will enable doing auto pairing with selections,
and fixing the bug where auto pairs destroy the selection.
Fixes#1014
* Add convenience/clarity wrapper for Range initialization
* Test horizontal moves
* Add column jumping tests
* Add failing movement conditions for multi-word moves
* Refactor skip_over_next
* Add complex forward movement unit tests
* Add strict whitespace checks and edge case tests
* Restore formatting
* Remove unused function
* Add empty test case for deletion and fix nth_prev_word_boundary
* Add tests for backward motion
* Refactor word movement
* Address review comments and finish refactoring backwards move
* Finish unit test suite
* Fmt pass
* Fix lint erors
* Clean up diff restoring bad 'cargo fmt' actions
* Simplify movement closures (thanks Pickfire)
* Fmt pass
* Replace index-based movement with iterator based movement, ensuring that each move incurs a single call to the RopeSlice API
* Break down tuple function
* Extract common logic to all movement functions
* Split iterator helpers away into their own module
* WIP reducing clones
* Operate on spans
* WIP simplifying iterators
* Simplify motion helpers
* Fix iterator
* Fix all unit tests
* Refactor and simplify
* Simplify fold
