This is partially a style commit:
* Pull more bindings out the `change_by_selection` closure like the
line-ending string and the comment tokens used for continuation.
* Prefer `Editor::config` to `Document`'s config.
The rest is changes to places where `insert_newline` may allocate.
The first is to move `new_text` out of the `change_by_selection`
closure, reusing it between iterations. This is not necessarily always
an improvement as we need to clone the text for the return type of the
closure. `SmartString`'s `From<String>` implementation reuses the
allocation when the string is too long to inline and drops it if it is
short enough to inline though which can be wasteful. `From<&String>`
clones the string's allocation only when it is too long to be inlined,
so we save on allocations for any `new_text` short enough to be inlined.
The rest is changes to `new_text.reserve_exact`. Previously calls to
this function in this block mixed up character and byte indexing by
treating the length of the line-ending as 1. `reserve_exact` takes a
number of bytes to reserve and that may be 2 when `line_ending` is a
CRLF. A call to `reserve_exact` is also added to the branch used when
continuing line comments.
#12177 changed `insert_newline`'s behavior to trim any trailing
whitespace on a line which came before a cursor. `insert_newline` would
previously never delete text. Even the whitespace stripping behavior in
#4854 worked by inserting text - a line ending at the beginning of the
line. `global_offs`, a variable that tracks the number of characters
inserted between iterations over the existing selection ranges, was not
updated to also account for text deleted by the trimming behavior,
causing cursors to be offset by the amount of trailing space deleted
and causing panics in some cases.
To fix this we need to subtract the number of trimmed whitespace
characters from `global_offs`. `global_offs` must become an `isize`
(was a `usize`) because it may become negative in cases where a lot of
trailing whitespace is trimmed. Integration tests have been added for
each of these cases.
Fixes#12461Fixes#12495Fixes#12539
For example `:cd README.md` would say "Not a directory" but would not
print the directory name. Now the error message includes some context
about the operation and requested directory.
Reproduction:
* `hx`
* Open any file in a split (`<space>f` and choose anything with `<C-v>`)
* Close the split with `<C-w>q`
* Open up the buffer picker and look the file you opened previously
Previously the preview was empty in this case because the Document's
`selections` hashmap was empty and we returned early, giving `None`
instead of a FileLocation. Instead when the Document is not currently
open in any view we can show the document but with no range highlighted.
Instantiating EditorView is a lot of machinery which is unnecessary:
the default keymap is exposed through the `default` function in the
keymap module.
Previously we replaced line-endings in pasted text to the document
line-ending for some values in paste commands. We missed the `repeat`
values in paste though and didn't do any replacement in the replace
command.
Along with this change I've refactored the replace command to avoid
intermediary collections. We previously eagerly collected the values
from the input register as a `Vec<String>` but we can avoid both of
those conversions and only allocate for the conversion to a `Tendril`.
We can also switch from `str::repeat` to a manual implementation to
avoid the intermediary conversion to a String - this avoids an extra
allocation in the common case (i.e. no count).
Fixes#12329
* feat: improve information on the amount of files loaded
* refactor: naming consitency Doc and not Buf
* fix: correct name of method
* chore: appease clippy
* feat: more human error information when Helix cannot start
* refatcor: use if guard on match arm
`set_string_truncated` renders the entire string while ignoring
newlines, so if the diagnostic's message contains multiple lines it
produces messages like 'first linesecond line'.
To avoid these run-ons, this commit renders each line separately,
inserting double spaces for disambiguation.
