ZIm/crates/vim/src/normal/convert.rs
Conrad Irwin b079871428
Fix subtraction with overflow (#33471)
Release Notes:

- N/A
2025-06-26 12:38:54 -06:00

421 lines
16 KiB
Rust

use collections::HashMap;
use editor::{display_map::ToDisplayPoint, scroll::Autoscroll};
use gpui::{Context, Window};
use language::{Bias, Point, SelectionGoal};
use multi_buffer::MultiBufferRow;
use crate::{
Vim,
motion::Motion,
normal::{ChangeCase, ConvertToLowerCase, ConvertToRot13, ConvertToRot47, ConvertToUpperCase},
object::Object,
state::Mode,
};
pub enum ConvertTarget {
LowerCase,
UpperCase,
OppositeCase,
Rot13,
Rot47,
}
impl Vim {
pub fn convert_motion(
&mut self,
motion: Motion,
times: Option<usize>,
forced_motion: bool,
mode: ConvertTarget,
window: &mut Window,
cx: &mut Context<Self>,
) {
self.stop_recording(cx);
self.update_editor(window, cx, |_, editor, window, cx| {
editor.set_clip_at_line_ends(false, cx);
let text_layout_details = editor.text_layout_details(window);
editor.transact(window, cx, |editor, window, cx| {
let mut selection_starts: HashMap<_, _> = Default::default();
editor.change_selections(None, window, cx, |s| {
s.move_with(|map, selection| {
let anchor = map.display_point_to_anchor(selection.head(), Bias::Left);
selection_starts.insert(selection.id, anchor);
motion.expand_selection(
map,
selection,
times,
&text_layout_details,
forced_motion,
);
});
});
match mode {
ConvertTarget::LowerCase => {
editor.convert_to_lower_case(&Default::default(), window, cx)
}
ConvertTarget::UpperCase => {
editor.convert_to_upper_case(&Default::default(), window, cx)
}
ConvertTarget::OppositeCase => {
editor.convert_to_opposite_case(&Default::default(), window, cx)
}
ConvertTarget::Rot13 => {
editor.convert_to_rot13(&Default::default(), window, cx)
}
ConvertTarget::Rot47 => {
editor.convert_to_rot47(&Default::default(), window, cx)
}
}
editor.change_selections(None, window, cx, |s| {
s.move_with(|map, selection| {
let anchor = selection_starts.remove(&selection.id).unwrap();
selection.collapse_to(anchor.to_display_point(map), SelectionGoal::None);
});
});
});
editor.set_clip_at_line_ends(true, cx);
});
}
pub fn convert_object(
&mut self,
object: Object,
around: bool,
mode: ConvertTarget,
window: &mut Window,
cx: &mut Context<Self>,
) {
self.stop_recording(cx);
self.update_editor(window, cx, |_, editor, window, cx| {
editor.transact(window, cx, |editor, window, cx| {
editor.set_clip_at_line_ends(false, cx);
let mut original_positions: HashMap<_, _> = Default::default();
editor.change_selections(None, window, cx, |s| {
s.move_with(|map, selection| {
object.expand_selection(map, selection, around);
original_positions.insert(
selection.id,
map.display_point_to_anchor(selection.start, Bias::Left),
);
});
});
match mode {
ConvertTarget::LowerCase => {
editor.convert_to_lower_case(&Default::default(), window, cx)
}
ConvertTarget::UpperCase => {
editor.convert_to_upper_case(&Default::default(), window, cx)
}
ConvertTarget::OppositeCase => {
editor.convert_to_opposite_case(&Default::default(), window, cx)
}
ConvertTarget::Rot13 => {
editor.convert_to_rot13(&Default::default(), window, cx)
}
ConvertTarget::Rot47 => {
editor.convert_to_rot47(&Default::default(), window, cx)
}
}
editor.change_selections(None, window, cx, |s| {
s.move_with(|map, selection| {
let anchor = original_positions.remove(&selection.id).unwrap();
selection.collapse_to(anchor.to_display_point(map), SelectionGoal::None);
});
});
editor.set_clip_at_line_ends(true, cx);
});
});
}
pub fn change_case(&mut self, _: &ChangeCase, window: &mut Window, cx: &mut Context<Self>) {
self.manipulate_text(window, cx, |c| {
if c.is_lowercase() {
c.to_uppercase().collect::<Vec<char>>()
} else {
c.to_lowercase().collect::<Vec<char>>()
}
})
}
pub fn convert_to_upper_case(
&mut self,
_: &ConvertToUpperCase,
window: &mut Window,
cx: &mut Context<Self>,
) {
self.manipulate_text(window, cx, |c| c.to_uppercase().collect::<Vec<char>>())
}
pub fn convert_to_lower_case(
&mut self,
_: &ConvertToLowerCase,
window: &mut Window,
cx: &mut Context<Self>,
) {
self.manipulate_text(window, cx, |c| c.to_lowercase().collect::<Vec<char>>())
}
pub fn convert_to_rot13(
&mut self,
_: &ConvertToRot13,
window: &mut Window,
cx: &mut Context<Self>,
) {
self.manipulate_text(window, cx, |c| {
vec![match c {
'A'..='M' | 'a'..='m' => ((c as u8) + 13) as char,
'N'..='Z' | 'n'..='z' => ((c as u8) - 13) as char,
_ => c,
}]
})
}
pub fn convert_to_rot47(
&mut self,
_: &ConvertToRot47,
window: &mut Window,
cx: &mut Context<Self>,
) {
self.manipulate_text(window, cx, |c| {
let code_point = c as u32;
if code_point >= 33 && code_point <= 126 {
return vec![char::from_u32(33 + ((code_point + 14) % 94)).unwrap()];
}
vec![c]
})
}
fn manipulate_text<F>(&mut self, window: &mut Window, cx: &mut Context<Self>, transform: F)
where
F: Fn(char) -> Vec<char> + Copy,
{
self.record_current_action(cx);
self.store_visual_marks(window, cx);
let count = Vim::take_count(cx).unwrap_or(1) as u32;
Vim::take_forced_motion(cx);
self.update_editor(window, cx, |vim, editor, window, cx| {
let mut ranges = Vec::new();
let mut cursor_positions = Vec::new();
let snapshot = editor.buffer().read(cx).snapshot(cx);
for selection in editor.selections.all_adjusted(cx) {
match vim.mode {
Mode::Visual | Mode::VisualLine => {
ranges.push(selection.start..selection.end);
cursor_positions.push(selection.start..selection.start);
}
Mode::VisualBlock => {
ranges.push(selection.start..selection.end);
if cursor_positions.is_empty() {
cursor_positions.push(selection.start..selection.start);
}
}
Mode::HelixNormal => {}
Mode::Insert | Mode::Normal | Mode::Replace => {
let start = selection.start;
let mut end = start;
for _ in 0..count {
end = snapshot.clip_point(end + Point::new(0, 1), Bias::Right);
}
ranges.push(start..end);
if end.column == snapshot.line_len(MultiBufferRow(end.row))
&& end.column > 0
{
end = snapshot.clip_point(end - Point::new(0, 1), Bias::Left);
}
cursor_positions.push(end..end)
}
}
}
editor.transact(window, cx, |editor, window, cx| {
for range in ranges.into_iter().rev() {
let snapshot = editor.buffer().read(cx).snapshot(cx);
let text = snapshot
.text_for_range(range.start..range.end)
.flat_map(|s| s.chars())
.flat_map(transform)
.collect::<String>();
editor.edit([(range, text)], cx)
}
editor.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
s.select_ranges(cursor_positions)
})
});
});
self.switch_mode(Mode::Normal, true, window, cx)
}
}
#[cfg(test)]
mod test {
use crate::{state::Mode, test::NeovimBackedTestContext};
#[gpui::test]
async fn test_change_case(cx: &mut gpui::TestAppContext) {
let mut cx = NeovimBackedTestContext::new(cx).await;
cx.set_shared_state("ˇabC\n").await;
cx.simulate_shared_keystrokes("~").await;
cx.shared_state().await.assert_eq("AˇbC\n");
cx.simulate_shared_keystrokes("2 ~").await;
cx.shared_state().await.assert_eq("ABˇc\n");
// works in visual mode
cx.set_shared_state("a😀C«dÉ1*fˇ»\n").await;
cx.simulate_shared_keystrokes("~").await;
cx.shared_state().await.assert_eq("a😀CˇDé1*F\n");
// works with multibyte characters
cx.simulate_shared_keystrokes("~").await;
cx.set_shared_state("aˇC😀é1*F\n").await;
cx.simulate_shared_keystrokes("4 ~").await;
cx.shared_state().await.assert_eq("ac😀É1ˇ*F\n");
// works with line selections
cx.set_shared_state("abˇC\n").await;
cx.simulate_shared_keystrokes("shift-v ~").await;
cx.shared_state().await.assert_eq("ˇABc\n");
// works in visual block mode
cx.set_shared_state("ˇaa\nbb\ncc").await;
cx.simulate_shared_keystrokes("ctrl-v j ~").await;
cx.shared_state().await.assert_eq("ˇAa\nBb\ncc");
// works with multiple cursors (zed only)
cx.set_state("aˇßcdˇe\n", Mode::Normal);
cx.simulate_keystrokes("~");
cx.assert_state("aSSˇcdˇE\n", Mode::Normal);
}
#[gpui::test]
async fn test_convert_to_upper_case(cx: &mut gpui::TestAppContext) {
let mut cx = NeovimBackedTestContext::new(cx).await;
// works in visual mode
cx.set_shared_state("a😀C«dÉ1*fˇ»\n").await;
cx.simulate_shared_keystrokes("shift-u").await;
cx.shared_state().await.assert_eq("a😀CˇDÉ1*F\n");
// works with line selections
cx.set_shared_state("abˇC\n").await;
cx.simulate_shared_keystrokes("shift-v shift-u").await;
cx.shared_state().await.assert_eq("ˇABC\n");
// works in visual block mode
cx.set_shared_state("ˇaa\nbb\ncc").await;
cx.simulate_shared_keystrokes("ctrl-v j shift-u").await;
cx.shared_state().await.assert_eq("ˇAa\nBb\ncc");
}
#[gpui::test]
async fn test_convert_to_lower_case(cx: &mut gpui::TestAppContext) {
let mut cx = NeovimBackedTestContext::new(cx).await;
// works in visual mode
cx.set_shared_state("A😀c«DÉ1*fˇ»\n").await;
cx.simulate_shared_keystrokes("u").await;
cx.shared_state().await.assert_eq("A😀cˇdé1*f\n");
// works with line selections
cx.set_shared_state("ABˇc\n").await;
cx.simulate_shared_keystrokes("shift-v u").await;
cx.shared_state().await.assert_eq("ˇabc\n");
// works in visual block mode
cx.set_shared_state("ˇAa\nBb\nCc").await;
cx.simulate_shared_keystrokes("ctrl-v j u").await;
cx.shared_state().await.assert_eq("ˇaa\nbb\nCc");
}
#[gpui::test]
async fn test_change_case_motion(cx: &mut gpui::TestAppContext) {
let mut cx = NeovimBackedTestContext::new(cx).await;
cx.set_shared_state("ˇabc def").await;
cx.simulate_shared_keystrokes("g shift-u w").await;
cx.shared_state().await.assert_eq("ˇABC def");
cx.simulate_shared_keystrokes("g u w").await;
cx.shared_state().await.assert_eq("ˇabc def");
cx.simulate_shared_keystrokes("g ~ w").await;
cx.shared_state().await.assert_eq("ˇABC def");
cx.simulate_shared_keystrokes(".").await;
cx.shared_state().await.assert_eq("ˇabc def");
cx.set_shared_state("abˇc def").await;
cx.simulate_shared_keystrokes("g ~ i w").await;
cx.shared_state().await.assert_eq("ˇABC def");
cx.simulate_shared_keystrokes(".").await;
cx.shared_state().await.assert_eq("ˇabc def");
cx.simulate_shared_keystrokes("g shift-u $").await;
cx.shared_state().await.assert_eq("ˇABC DEF");
}
#[gpui::test]
async fn test_change_case_motion_object(cx: &mut gpui::TestAppContext) {
let mut cx = NeovimBackedTestContext::new(cx).await;
cx.set_shared_state("abc dˇef\n").await;
cx.simulate_shared_keystrokes("g shift-u i w").await;
cx.shared_state().await.assert_eq("abc ˇDEF\n");
}
#[gpui::test]
async fn test_convert_to_rot13(cx: &mut gpui::TestAppContext) {
let mut cx = NeovimBackedTestContext::new(cx).await;
// works in visual mode
cx.set_shared_state("a😀C«dÉ1*fˇ»\n").await;
cx.simulate_shared_keystrokes("g ?").await;
cx.shared_state().await.assert_eq("a😀CˇqÉ1*s\n");
// works with line selections
cx.set_shared_state("abˇC\n").await;
cx.simulate_shared_keystrokes("shift-v g ?").await;
cx.shared_state().await.assert_eq("ˇnoP\n");
// works in visual block mode
cx.set_shared_state("ˇaa\nbb\ncc").await;
cx.simulate_shared_keystrokes("ctrl-v j g ?").await;
cx.shared_state().await.assert_eq("ˇna\nob\ncc");
}
#[gpui::test]
async fn test_change_rot13_motion(cx: &mut gpui::TestAppContext) {
let mut cx = NeovimBackedTestContext::new(cx).await;
cx.set_shared_state("ˇabc def").await;
cx.simulate_shared_keystrokes("g ? w").await;
cx.shared_state().await.assert_eq("ˇnop def");
cx.simulate_shared_keystrokes("g ? w").await;
cx.shared_state().await.assert_eq("ˇabc def");
cx.simulate_shared_keystrokes(".").await;
cx.shared_state().await.assert_eq("ˇnop def");
cx.set_shared_state("abˇc def").await;
cx.simulate_shared_keystrokes("g ? i w").await;
cx.shared_state().await.assert_eq("ˇnop def");
cx.simulate_shared_keystrokes(".").await;
cx.shared_state().await.assert_eq("ˇabc def");
cx.simulate_shared_keystrokes("g ? $").await;
cx.shared_state().await.assert_eq("ˇnop qrs");
}
#[gpui::test]
async fn test_change_rot13_object(cx: &mut gpui::TestAppContext) {
let mut cx = NeovimBackedTestContext::new(cx).await;
cx.set_shared_state("ˇabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
.await;
cx.simulate_shared_keystrokes("g ? i w").await;
cx.shared_state()
.await
.assert_eq("ˇnopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM");
}
}