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docs: add comments describing algorithm for replacing character

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This commit is contained in:
Nikita Revenco 2024-11-11 17:17:57 +00:00
parent 59df1fedf5
commit f8cace7957
1 changed files with 7 additions and 3 deletions
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10
helix-term/src/commands.rs
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@ -5657,7 +5657,6 @@ fn surround_add_impl(
fn surround_add(cx: &mut Context) {
cx.on_next_key(move |cx, event| {
let (view, doc) = current!(cx.editor);
// surround_len is the number of new characters being added.
match event.char() {
Some(ch) => {
if ch == 'x' {
@ -5705,7 +5704,7 @@ fn surround_add(cx: &mut Context) {
}
fn surround_replace(cx: &mut Context) {
let count = cx.count();
let layer = cx.count();
cx.on_next_key(move |cx, event| {
let surround_ch = match event.char() {
Some('m') => None, // m selects the closest surround pair
@ -5716,8 +5715,11 @@ fn surround_replace(cx: &mut Context) {
let text = doc.text().slice(..);
let selection = doc.selection(view.id);
// the first character represents the index of the first change
// the second character represents the index of the second change
let change_pos =
match surround::get_surround_pos(doc.syntax(), text, selection, surround_ch, count) {
// also interested in changing this
match surround::get_surround_pos(doc.syntax(), text, selection, surround_ch, layer) {
Ok(c) => c,
Err(err) => {
cx.editor.set_error(err.to_string());
@ -5738,6 +5740,7 @@ fn surround_replace(cx: &mut Context) {
Some(to) => to,
None => return doc.set_selection(view.id, selection),
};
// we are interested in changing this specifically
let (open, close) = match_brackets::get_pair(to);
// the changeset has to be sorted to allow nested surrounds
@ -5753,6 +5756,7 @@ fn surround_replace(cx: &mut Context) {
sorted_pos.iter().map(|&pos| {
let mut t = Tendril::new();
t.push(pos.1);
log::error!("{:?}, {:?}", pos.0, Some(&t));
(pos.0, pos.0 + 1, Some(t))
}),
);