Added change_case command (#441)

* Added change_case command

* Added switch_to_uppercase and switch_to_lowercase

Renamed change_case to switch_case.

* Updated the Keymap section of the Book

* Use flat_map instead of map + flatten

* Fix switch_to_uppercase using to_lowercase

* Switched 'Alt-`' to uppercase and '`' to lowercase

Co-authored-by: Cor <prive@corpeters.nl>
pull/465/head
Cor Peters 3 years ago committed by GitHub
parent e2bcef718a
commit 722cfedb38
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -45,6 +45,9 @@
| ----- | ----------- |
| `r` | Replace with a character |
| `R` | Replace with yanked text |
| `~` | Switch case of the selected text |
| `\`` | Set the selected text to upper case |
| `Alt-\`` | Set the selected text to lower case |
| `i` | Insert before selection |
| `a` | Insert after selection (append) |
| `I` | Insert at the start of the line |

@ -186,6 +186,9 @@ impl Command {
extend_till_prev_char,
extend_prev_char,
replace,
switch_case,
switch_to_uppercase,
switch_to_lowercase,
page_up,
page_down,
half_page_up,
@ -780,6 +783,57 @@ fn replace(cx: &mut Context) {
})
}
fn switch_case(cx: &mut Context) {
let (view, doc) = current!(cx.editor);
let transaction =
Transaction::change_by_selection(doc.text(), doc.selection(view.id), |range| {
let text: Tendril = range
.fragment(doc.text().slice(..))
.chars()
.flat_map(|ch| {
if ch.is_lowercase() {
ch.to_uppercase().collect()
} else if ch.is_uppercase() {
ch.to_lowercase().collect()
} else {
vec![ch]
}
})
.collect();
(range.from(), range.to() + 1, Some(text))
});
doc.apply(&transaction, view.id);
doc.append_changes_to_history(view.id);
}
fn switch_to_uppercase(cx: &mut Context) {
let (view, doc) = current!(cx.editor);
let transaction =
Transaction::change_by_selection(doc.text(), doc.selection(view.id), |range| {
let text: Tendril = range.fragment(doc.text().slice(..)).to_uppercase().into();
(range.from(), range.to() + 1, Some(text))
});
doc.apply(&transaction, view.id);
doc.append_changes_to_history(view.id);
}
fn switch_to_lowercase(cx: &mut Context) {
let (view, doc) = current!(cx.editor);
let transaction =
Transaction::change_by_selection(doc.text(), doc.selection(view.id), |range| {
let text: Tendril = range.fragment(doc.text().slice(..)).to_lowercase().into();
(range.from(), range.to() + 1, Some(text))
});
doc.apply(&transaction, view.id);
doc.append_changes_to_history(view.id);
}
fn scroll(cx: &mut Context, offset: usize, direction: Direction) {
use Direction::*;
let (view, doc) = current!(cx.editor);

@ -82,6 +82,10 @@ impl Default for Keymaps {
key!('r') => Command::replace,
key!('R') => Command::replace_with_yanked,
key!('~') => Command::switch_case,
alt!('`') => Command::switch_to_uppercase,
key!('`') => Command::switch_to_lowercase,
key!(Home) => Command::goto_line_start,
key!(End) => Command::goto_line_end,

Loading…
Cancel
Save