diff options
| -rw-r--r-- | helix-core/src/transaction.rs | 5 | ||||
| -rw-r--r-- | helix-term/src/commands.rs | 141 | ||||
| -rw-r--r-- | helix-term/tests/test/commands.rs | 23 |
3 files changed, 124 insertions, 45 deletions
diff --git a/helix-core/src/transaction.rs b/helix-core/src/transaction.rs index 06efe259..f4f94b54 100644 --- a/helix-core/src/transaction.rs +++ b/helix-core/src/transaction.rs @@ -570,6 +570,11 @@ impl Transaction { Self::from(changeset) } + pub fn insert_at_eof(mut self, text: Tendril) -> Transaction { + self.changes.insert(text); + self + } + /// Generate a transaction with a change per selection range. pub fn change_by_selection<F>(doc: &Rope, selection: &Selection, f: F) -> Self where diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs index 05b5b9b6..5a844e35 100644 --- a/helix-term/src/commands.rs +++ b/helix-term/src/commands.rs @@ -795,42 +795,50 @@ fn extend_to_line_start(cx: &mut Context) { } fn kill_to_line_start(cx: &mut Context) { - delete_by_selection_insert_mode(cx, move |text, range| { - let line = range.cursor_line(text); - let first_char = text.line_to_char(line); - let anchor = range.cursor(text); - let head = if anchor == first_char && line != 0 { - // select until previous line - line_end_char_index(&text, line - 1) - } else if let Some(pos) = find_first_non_whitespace_char(text.line(line)) { - if first_char + pos < anchor { - // select until first non-blank in line if cursor is after it - first_char + pos + delete_by_selection_insert_mode( + cx, + move |text, range| { + let line = range.cursor_line(text); + let first_char = text.line_to_char(line); + let anchor = range.cursor(text); + let head = if anchor == first_char && line != 0 { + // select until previous line + line_end_char_index(&text, line - 1) + } else if let Some(pos) = find_first_non_whitespace_char(text.line(line)) { + if first_char + pos < anchor { + // select until first non-blank in line if cursor is after it + first_char + pos + } else { + // select until start of line + first_char + } } else { // select until start of line first_char - } - } else { - // select until start of line - first_char - }; - (head, anchor) - }); + }; + (head, anchor) + }, + Direction::Backward, + ); } fn kill_to_line_end(cx: &mut Context) { - delete_by_selection_insert_mode(cx, |text, range| { - let line = range.cursor_line(text); - let line_end_pos = line_end_char_index(&text, line); - let pos = range.cursor(text); + delete_by_selection_insert_mode( + cx, + |text, range| { + let line = range.cursor_line(text); + let line_end_pos = line_end_char_index(&text, line); + let pos = range.cursor(text); - // if the cursor is on the newline char delete that - if pos == line_end_pos { - (pos, text.line_to_char(line + 1)) - } else { - (pos, line_end_pos) - } - }); + // if the cursor is on the newline char delete that + if pos == line_end_pos { + (pos, text.line_to_char(line + 1)) + } else { + (pos, line_end_pos) + } + }, + Direction::Forward, + ); } fn goto_first_nonwhitespace(cx: &mut Context) { @@ -2322,13 +2330,44 @@ fn delete_selection_impl(cx: &mut Context, op: Operation) { fn delete_by_selection_insert_mode( cx: &mut Context, mut f: impl FnMut(RopeSlice, &Range) -> Deletion, + direction: Direction, ) { let (view, doc) = current!(cx.editor); let text = doc.text().slice(..); - let transaction = + let mut selection = SmallVec::new(); + let mut insert_newline = false; + let text_len = text.len_chars(); + let mut transaction = Transaction::delete_by_selection(doc.text(), doc.selection(view.id), |range| { - f(text, range) + let (start, end) = f(text, range); + if direction == Direction::Forward { + let mut range = *range; + if range.head > range.anchor { + insert_newline |= end == text_len; + // move the cursor to the right so that the selection + // doesn't shrink when deleting forward (so the text appears to + // move to left) + // += 1 is enough here as the range is normalized to grapheme boundaries + // later anyway + range.head += 1; + } + selection.push(range); + } + (start, end) }); + + // in case we delete the last character and the cursor would be moved to the EOF char + // insert a newline, just like when entering append mode + if insert_newline { + transaction = transaction.insert_at_eof(doc.line_ending.as_str().into()); + } + + if direction == Direction::Forward { + doc.set_selection( + view.id, + Selection::new(selection, doc.selection(view.id).primary_index()), + ); + } doc.apply(&transaction, view.id); lsp::signature_help_impl(cx, SignatureHelpInvoked::Automatic); } @@ -3490,28 +3529,40 @@ pub mod insert { pub fn delete_char_forward(cx: &mut Context) { let count = cx.count(); - delete_by_selection_insert_mode(cx, |text, range| { - let pos = range.cursor(text); - (pos, graphemes::nth_next_grapheme_boundary(text, pos, count)) - }) + delete_by_selection_insert_mode( + cx, + |text, range| { + let pos = range.cursor(text); + (pos, graphemes::nth_next_grapheme_boundary(text, pos, count)) + }, + Direction::Forward, + ) } pub fn delete_word_backward(cx: &mut Context) { let count = cx.count(); - delete_by_selection_insert_mode(cx, |text, range| { - let anchor = movement::move_prev_word_start(text, *range, count).from(); - let next = Range::new(anchor, range.cursor(text)); - let range = exclude_cursor(text, next, *range); - (range.from(), range.to()) - }); + delete_by_selection_insert_mode( + cx, + |text, range| { + let anchor = movement::move_prev_word_start(text, *range, count).from(); + let next = Range::new(anchor, range.cursor(text)); + let range = exclude_cursor(text, next, *range); + (range.from(), range.to()) + }, + Direction::Backward, + ); } pub fn delete_word_forward(cx: &mut Context) { let count = cx.count(); - delete_by_selection_insert_mode(cx, |text, range| { - let head = movement::move_next_word_end(text, *range, count).to(); - (range.cursor(text), head) - }); + delete_by_selection_insert_mode( + cx, + |text, range| { + let head = movement::move_next_word_end(text, *range, count).to(); + (range.cursor(text), head) + }, + Direction::Forward, + ); } } diff --git a/helix-term/tests/test/commands.rs b/helix-term/tests/test/commands.rs index 1efb204e..f91a6371 100644 --- a/helix-term/tests/test/commands.rs +++ b/helix-term/tests/test/commands.rs @@ -429,3 +429,26 @@ async fn test_delete_word_forward() -> anyhow::Result<()> { Ok(()) } +#[tokio::test(flavor = "multi_thread")] +async fn test_delete_char_forward() -> anyhow::Result<()> { + test(( + platform_line(indoc! {"\ + #[abc|]#def + #(abc|)#ef + #(abc|)#f + #(abc|)# + "}) + .as_str(), + "a<del><esc>", + platform_line(indoc! {"\ + #[abc|]#ef + #(abc|)#f + #(abc|)# + #(abc|)# + "}) + .as_str(), + )) + .await?; + + Ok(()) +} |