The top of a view is marked by a char idx anchor. That char idx is
usually the first character of the visual line it's on. We use a char
index instead of a line index because the view may start in the middle
of a line with soft wrapping. However, it's possible to temporarily
endup in a state where this anchor is not the first character of the
first visual line. This is pretty rare because edits usually happen
inside/after the view. In most cases we handle this case correctly.
However, if the cursor is before the anchor (but still in view)
there can be crashes or visual artifacts. This is caused by the fact
that visual_offset_from_anchor (and the positioning code in view.rs)
incorrectly assumed that the (cursor) position is always after the
view anchor if the cursor is in view. But if the anchor is not the
first character of the first visual line this is not the case anymore.
In that case crashes and visual artifacts are possible. This commit
fixes that problem by changing `visual_offset_from_anchor` (and
callsites) to properly consider that case.
* rework positioning/rendering, enables softwrap/virtual text
This commit is a large rework of the core text positioning and
rendering code in helix to remove the assumption that on-screen
columns/lines correspond to text columns/lines.
A generic `DocFormatter` is introduced that positions graphemes on
and is used both for rendering and for movements/scrolling.
Both virtual text support (inline, grapheme overlay and multi-line)
and a capable softwrap implementation is included.
fix picker highlight
cleanup doc formatter, use word bondaries for wrapping
make visual vertical movement a seperate commnad
estimate line gutter width to improve performance
cache cursor position
cleanup and optimize doc formatter
cleanup documentation
fix typos
Co-authored-by: Daniel Hines <d4hines@gmail.com>
update documentation
fix panic in last_visual_line funciton
improve soft-wrap documentation
add extend_visual_line_up/down commands
fix non-visual vertical movement
streamline virtual text highlighting, add softwrap indicator
fix cursor position if softwrap is disabled
improve documentation of text_annotations module
avoid crashes if view anchor is out of bounds
fix: consider horizontal offset when traslation char_idx -> vpos
improve default configuration
fix: mixed up horizontal and vertical offset
reset view position after config reload
apply suggestions from review
disabled softwrap for very small screens to avoid endless spin
fix wrap_indicator setting
fix bar cursor disappearring on the EOF character
add keybinding for linewise vertical movement
fix: inconsistent gutter highlights
improve virtual text API
make scope idx lookup more ergonomic
allow overlapping overlays
correctly track char_pos for virtual text
adjust configuration
deprecate old position fucntions
fix infinite loop in highlight lookup
fix gutter style
fix formatting
document max-line-width interaction with softwrap
change wrap-indicator example to use empty string
fix: rare panic when view is in invalid state (bis)
* Apply suggestions from code review
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* improve documentation for positoning functions
* simplify tests
* fix documentation of Grapheme::width
* Apply suggestions from code review
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* add explicit drop invocation
* Add explicit MoveFn type alias
* add docuntation to Editor::cursor_cache
* fix a few typos
* explain use of allow(deprecated)
* make gj and gk extend in select mode
* remove unneded debug and TODO
* mark tab_width_at #[inline]
* add fast-path to move_vertically_visual in case softwrap is disabled
* rename first_line to first_visual_line
* simplify duplicate if/else
---------
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* Show (git) diff signs in gutter (#3890)
Avoid string allocation when git diffing
Incrementally diff using changesets
refactor diffs to be provider indepndent and improve git implementation
remove dependency on zlib-ng
switch to asynchronus diffing with similar
Update helix-vcs/Cargo.toml
fix toml formatting
Co-authored-by: Ivan Tham <pickfire@riseup.net>
fix typo in documentation
use ropey reexpors from helix-core
fix crash when creating new file
remove useless use if io::Cursor
fix spelling mistakes
implement suggested improvement to repository loading
improve git test isolation
remove lefover comments
Co-authored-by: univerz <univerz@fu-solution.com>
fixed spelling mistake
minor cosmetic changes
fix: set self.differ to None if decoding the diff_base fails
fixup formatting
Co-authored-by: Ivan Tham <pickfire@riseup.net>
reload diff_base when file is reloaded from disk
switch to imara-diff
Fixup formatting
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Redraw buffer whenever a diff is updated.
Only store hunks instead of changes for individual lines to easily allow
jumping between them
Update to latest gitoxide version
Change default diff gutter position
Only update gutter after timeout
* update diff gutter synchronously, with a timeout
* Apply suggestions from code review
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* address review comments and ensure lock is always aquired
* remove configuration for redraw timeout
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
Co-authored-by: Michael Davis <mcarsondavis@gmail.com>
* Split helix_core::find_root and helix_loader::find_local_config_dirs
The documentation of find_root described the following priority for
detecting a project root:
- Top-most folder containing a root marker in current git repository
- Git repository root if no marker detected
- Top-most folder containing a root marker if not git repository detected
- Current working directory as fallback
The commit contained in https://github.com/helix-editor/helix/pull/1249
extracted and changed the implementation of find_root in find_root_impl,
actually reversing its result order (since that is the order that made
sense for the local configuration merge, from innermost to outermost
ancestors).
Since the two uses of find_root_impl have different requirements (and
it's not a matter of reversing the order of results since, e.g., the top
repository dir should be used by find_root only if there's not marker in
other dirs), this PR splits the two implementations in two different
specialized functions.
In doing so, find_root_impl is removed and the implementation is moved
back in find_root, moving it closer to the documented behaviour thus
making it easier to verify it's actually correct
* helix-core: remove Option from find_root return type
It always returns some result, so Option is not needed
* feat: make `move_vertically` aware of tabs and wide characters
* refactor: replace unnecessary checked_sub with comparison
* refactor: leave pos_at_coords unchanged and introduce separate pos_at_visual_coords
* style: include comment to explain `pos_at_visual_coords` breaking condition
* refactor: use `pos_at_visual_coords` in `text_pos_at_screen_coords`
* feat: make `copy_selection_on_line` aware of wide characters
* add reflow command
Users need to be able to hard-wrap text for many applications, including
comments in code, git commit messages, plaintext documentation, etc. It
often falls to the user to manually insert line breaks where appropriate
in order to hard-wrap text.
This commit introduces the "reflow" command (both in the TUI and core
library) to automatically hard-wrap selected text to a given number of
characters (defined by Unicode "extended grapheme clusters"). It handles
lines with a repeated prefix, such as comments ("//") and indentation.
* reflow: consider newlines to be word separators
* replace custom reflow impl with textwrap crate
* Sync reflow command docs with book
* reflow: add default max_line_len language setting
Co-authored-by: Vince Mutolo <vince@mutolo.org>
This is a rather large refactor that moves most of the code for
loading, fetching, and building grammars into a new helix-loader
module. This works well with the [[grammars]] syntax for
languages.toml defined earlier: we only have to depend on the types
for GrammarConfiguration in helix-loader and can leave all the
[[language]] entries for helix-core.
* Move runtime file location definitions to core
* Add basic --health command
* Add language specific --health
* Show summary for all langs with bare --health
* Use TsFeature from xtask for --health
* cargo fmt
Co-authored-by: Blaž Hrastnik <blaz@mxxn.io>
* feat(ui): file encoding in statusline
Display file encoding in statusline if the encoding
isn't UTF-8.
* Re-export encoding_rs from core
From there it can be imported by other mods
that rely on it.
* Add command to inc/dec number under cursor
With the cursor over a number in normal mode, Ctrl + A will increment the
number and Ctrl + X will decrement the number. It works with binary, octal,
decimal, and hexidecimal numbers. Here are some examples.
0b01110100
0o1734
-24234
0x1F245
If the number isn't over a number it will try to find a number after the
cursor on the same line.
* Move several functions to helix-core
* Change to work based on word under selection
* It no longer finds the next number if the cursor isn't already over
a number.
* It only matches numbers that are part of words with other characters
like "foo123bar".
* It now works with multiple selections.
* Add some unit tests
* Fix for clippy
* Simplify some things
* Keep previous selection after incrementing
* Use short word instead of long word
This change requires us to manually handle minus sign.
* Don't pad decimal numbers if no leading zeros
* Handle numbers with `_` separators
* Refactor and add tests
* Move most of the code into core
* Add tests for the incremented output
* Use correct range
* Formatting
* Rename increment functions
* Make docs more specific
* This is easier to read
* This is clearer
* Type can be inferred
* feat: merge default languages.toml with user provided languages.toml
* refactor: use catch-all to override all other values for merge toml
* tests: add a test case for merging languages configs
* refactor: change test module name
* 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
Pascal Kuthe
Blaž Hrastnik
Riccardo Binetti
Matthew Toohey
Ryan Russell
Vince Mutolo
Kirawi
Ivan Tham
Michael Davis
Gokul Soumya
Alexis Mousset
Matouš Dzivjak
ath3
Jason Rodney Hansen
George Rodrigues
Carter Snook
Yusuf Bera Ertan
Nathan Vegdahl
Shafkath Shuhan
Jan Hrastnik
wojciechkepka