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Implement Kakoune's A-S: Select first and last chars #9483

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Implement Kakoune's A-S: Select first and last chars #9483

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6111312
Added kakoune's A-S command
scdailey Jan 30, 2024
0311256
Small formatting change
scdailey Jan 30, 2024
091ec45
Updated to use grapheme helpers
scdailey Jan 30, 2024
0c5e277
Change to Range::point and fix keymap formatting
scdailey Jan 30, 2024
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15 changes: 15 additions & 0 deletions helix-term/src/commands.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -278,6 +278,7 @@ impl MappableCommand {
half_page_up, "Move half page up",
half_page_down, "Move half page down",
select_all, "Select whole document",
select_first_and_last_chars, "Select first and last characters of each selection",
select_regex, "Select all regex matches inside selections",
split_selection, "Split selections on regex matches",
split_selection_on_newline, "Split selection on newlines",
Expand Down Expand Up @@ -1811,6 +1812,20 @@ fn select_all(cx: &mut Context) {
doc.set_selection(view.id, Selection::single(0, end))
}

fn select_first_and_last_chars(cx: &mut Context) {
let (view, doc) = current!(cx.editor);

let selection = doc.selection(view.id).clone().transform_iter(|range| {
vec![
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Range::new(range.anchor, range.anchor + 1),
Range::new(range.head - 1, range.head),
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]
.into_iter()
});

doc.set_selection(view.id, selection);
}

fn select_regex(cx: &mut Context) {
let reg = cx.register.unwrap_or('/');
ui::regex_prompt(
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1 change: 1 addition & 0 deletions helix-term/src/keymap/default.rs
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Expand Up @@ -78,6 +78,7 @@ pub fn default() -> HashMap<Mode, KeyTrie> {


"s" => select_regex,
"A-S" => select_first_and_last_chars,
"A-s" => split_selection_on_newline,
"A-minus" => merge_selections,
"A-_" => merge_consecutive_selections,
Expand Down