From 72f606ee19a20eca7901ac1647e8efa58ea4f8b8 Mon Sep 17 00:00:00 2001 From: ath3 <45574139+ath3@users.noreply.github.com> Date: Wed, 24 Nov 2021 08:46:40 +0100 Subject: [PATCH] Implement no-yank delete/change (#1099) --- book/src/keymap.md | 72 ++++++++++++++++++++------------------ helix-term/src/commands.rs | 64 +++++++++++++++++++++------------ helix-term/src/keymap.rs | 4 +-- 3 files changed, 81 insertions(+), 59 deletions(-) diff --git a/book/src/keymap.md b/book/src/keymap.md index fbe77267..4d542800 100644 --- a/book/src/keymap.md +++ b/book/src/keymap.md @@ -45,44 +45,46 @@ ### Changes -| Key | Description | Command | -| ----- | ----------- | ------- | -| `r` | Replace with a character | `replace` | -| `R` | Replace with yanked text | `replace_with_yanked` | -| `~` | Switch case of the selected text | `switch_case` | -| `` ` `` | Set the selected text to lower case | `switch_to_lowercase` | -| `` Alt-` `` | Set the selected text to upper case | `switch_to_uppercase` | -| `i` | Insert before selection | `insert_mode` | -| `a` | Insert after selection (append) | `append_mode` | -| `I` | Insert at the start of the line | `prepend_to_line` | -| `A` | Insert at the end of the line | `append_to_line` | -| `o` | Open new line below selection | `open_below` | -| `O` | Open new line above selection | `open_above` | -| `.` | Repeat last change | N/A | -| `u` | Undo change | `undo` | -| `U` | Redo change | `redo` | -| `Alt-u` | Move backward in history | `earlier` | -| `Alt-U` | Move forward in history | `later` | -| `y` | Yank selection | `yank` | -| `p` | Paste after selection | `paste_after` | -| `P` | Paste before selection | `paste_before` | -| `"` `` | Select a register to yank to or paste from | `select_register` | -| `>` | Indent selection | `indent` | -| `<` | Unindent selection | `unindent` | -| `=` | Format selection (**LSP**) | `format_selections` | -| `d` | Delete selection | `delete_selection` | -| `c` | Change selection (delete and enter insert mode) | `change_selection` | -| `Ctrl-a` | Increment object (number) under cursor | `increment` | -| `Ctrl-x` | Decrement object (number) under cursor | `decrement` | +| Key | Description | Command | +| ----- | ----------- | ------- | +| `r` | Replace with a character | `replace` | +| `R` | Replace with yanked text | `replace_with_yanked` | +| `~` | Switch case of the selected text | `switch_case` | +| `` ` `` | Set the selected text to lower case | `switch_to_lowercase` | +| `` Alt-` `` | Set the selected text to upper case | `switch_to_uppercase` | +| `i` | Insert before selection | `insert_mode` | +| `a` | Insert after selection (append) | `append_mode` | +| `I` | Insert at the start of the line | `prepend_to_line` | +| `A` | Insert at the end of the line | `append_to_line` | +| `o` | Open new line below selection | `open_below` | +| `O` | Open new line above selection | `open_above` | +| `.` | Repeat last change | N/A | +| `u` | Undo change | `undo` | +| `U` | Redo change | `redo` | +| `Alt-u` | Move backward in history | `earlier` | +| `Alt-U` | Move forward in history | `later` | +| `y` | Yank selection | `yank` | +| `p` | Paste after selection | `paste_after` | +| `P` | Paste before selection | `paste_before` | +| `"` `` | Select a register to yank to or paste from | `select_register` | +| `>` | Indent selection | `indent` | +| `<` | 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` | #### Shell -| Key | Description | Command | -| ------ | ----------- | ------- | -| | | Pipe each selection through shell command, replacing with output | `shell_pipe` | -| A-| | 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` | +| Key | Description | Command | +| ------ | ----------- | ------- | +| | | Pipe each selection through shell command, replacing with output | `shell_pipe` | +| Alt-| | Pipe each selection into shell command, ignoring output | `shell_pipe_to` | +| `!` | Run shell command, inserting output before each selection | `shell_insert_output` | +| `Alt-!` | Run shell command, appending output after each selection | `shell_append_output` | ### Selection manipulation diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs index 2c556281..b5b6ac6d 100644 --- a/helix-term/src/commands.rs +++ b/helix-term/src/commands.rs @@ -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); - // first yank the selection - let values: Vec = selection.fragments(text).map(Cow::into_owned).collect(); - reg.write(values); + if cx.register != Some('_') { + // first yank the selection + let values: Vec = 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) { diff --git a/helix-term/src/keymap.rs b/helix-term/src/keymap.rs index 7f6d0c6b..0062e636 100644 --- a/helix-term/src/keymap.rs +++ b/helix-term/src/keymap.rs @@ -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,