Implement no-yank delete/change (#1099)

pull/1158/head
ath3 3 years ago committed by GitHub
parent 57c14d4a93
commit 72f606ee19
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GPG Key ID: 4AEE18F83AFDEB23

@ -71,7 +71,9 @@
| `<` | Unindent selection | `unindent` |
| `=` | Format selection (**LSP**) | `format_selections` |
| `d` | Delete selection | `delete_selection` |
| `Alt-d` | Delete selection, without yanking | `delete_selection_noyank` |
| `c` | Change selection (delete and enter insert mode) | `change_selection` |
| `Alt-c` | Change selection (delete and enter insert mode, without yanking) | `change_selection_noyank` |
| `Ctrl-a` | Increment object (number) under cursor | `increment` |
| `Ctrl-x` | Decrement object (number) under cursor | `decrement` |
@ -80,9 +82,9 @@
| Key | Description | Command |
| ------ | ----------- | ------- |
| <code>&#124;</code> | Pipe each selection through shell command, replacing with output | `shell_pipe` |
| <code>A-&#124;</code> | Pipe each selection into shell command, ignoring output | `shell_pipe_to` |
| <code>Alt-&#124;</code> | Pipe each selection into shell command, ignoring output | `shell_pipe_to` |
| `!` | Run shell command, inserting output before each selection | `shell_insert_output` |
| `A-!` | Run shell command, appending output after each selection | `shell_append_output` |
| `Alt-!` | Run shell command, appending output after each selection | `shell_append_output` |
### Selection manipulation

@ -9,7 +9,6 @@ use helix_core::{
numbers::NumberIncrementor,
object, pos_at_coords,
regex::{self, Regex, RegexBuilder},
register::Register,
search, selection, surround, textobject,
unicode::width::UnicodeWidthChar,
LineEnding, Position, Range, Rope, RopeGraphemes, RopeSlice, Selection, SmallVec, Tendril,
@ -232,7 +231,9 @@ impl Command {
extend_line, "Select current line, if already selected, extend to next line",
extend_to_line_bounds, "Extend selection to line bounds (line-wise selection)",
delete_selection, "Delete selection",
delete_selection_noyank, "Delete selection, without yanking",
change_selection, "Change selection (delete and enter insert mode)",
change_selection_noyank, "Change selection (delete and enter insert mode, without yanking)",
collapse_selection, "Collapse selection onto a single cursor",
flip_selections, "Flip selection cursor and anchor",
insert_mode, "Insert before selection",
@ -1693,19 +1694,42 @@ fn extend_to_line_bounds(cx: &mut Context) {
);
}
fn delete_selection_impl(reg: &mut Register, doc: &mut Document, view_id: ViewId) {
enum Operation {
Delete,
Change,
}
fn delete_selection_impl(cx: &mut Context, op: Operation) {
let (view, doc) = current!(cx.editor);
let text = doc.text().slice(..);
let selection = doc.selection(view_id);
let selection = doc.selection(view.id);
if cx.register != Some('_') {
// first yank the selection
let values: Vec<String> = selection.fragments(text).map(Cow::into_owned).collect();
let reg_name = cx.register.unwrap_or('"');
let registers = &mut cx.editor.registers;
let reg = registers.get_mut(reg_name);
reg.write(values);
};
// then delete
let transaction = Transaction::change_by_selection(doc.text(), selection, |range| {
(range.from(), range.to(), None)
});
doc.apply(&transaction, view_id);
doc.apply(&transaction, view.id);
match op {
Operation::Delete => {
doc.append_changes_to_history(view.id);
// exit select mode, if currently in select mode
exit_select_mode(cx);
}
Operation::Change => {
enter_insert_mode(doc);
}
}
}
#[inline]
@ -1720,25 +1744,21 @@ fn delete_selection_insert_mode(doc: &mut Document, view: &View, selection: &Sel
}
fn delete_selection(cx: &mut Context) {
let reg_name = cx.register.unwrap_or('"');
let (view, doc) = current!(cx.editor);
let registers = &mut cx.editor.registers;
let reg = registers.get_mut(reg_name);
delete_selection_impl(reg, doc, view.id);
doc.append_changes_to_history(view.id);
delete_selection_impl(cx, Operation::Delete);
}
// exit select mode, if currently in select mode
exit_select_mode(cx);
fn delete_selection_noyank(cx: &mut Context) {
cx.register = Some('_');
delete_selection_impl(cx, Operation::Delete);
}
fn change_selection(cx: &mut Context) {
let reg_name = cx.register.unwrap_or('"');
let (view, doc) = current!(cx.editor);
let registers = &mut cx.editor.registers;
let reg = registers.get_mut(reg_name);
delete_selection_impl(reg, doc, view.id);
enter_insert_mode(doc);
delete_selection_impl(cx, Operation::Change);
}
fn change_selection_noyank(cx: &mut Context) {
cx.register = Some('_');
delete_selection_impl(cx, Operation::Change);
}
fn collapse_selection(cx: &mut Context) {

@ -537,9 +537,9 @@ impl Default for Keymaps {
"O" => open_above,
"d" => delete_selection,
// TODO: also delete without yanking
"A-d" => delete_selection_noyank,
"c" => change_selection,
// TODO: also change delete without yanking
"A-c" => change_selection_noyank,
"C" => copy_selection_on_next_line,
"A-C" => copy_selection_on_prev_line,

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