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LibLine: Implement basic cut-and-paste functionality

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Every cut operation (erase last word backward/forward, erase line till
start/end) stores the erased characters in `m_last_erased` u32 vector.

The last erased characters will get inserted into the buffer when
`Ctrl+Y` (`insert_last_erased()` internal function) is pressed.
This commit is contained in:
ronak69 2024-01-03 13:14:34 +00:00 • committed by Ali Mohammad Pur
parent 97bcdba2a5
commit 9d3604215d
3 changed files with 49 additions and 2 deletions
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Userland/Libraries/LibLine/Editor.cpp
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@ -164,6 +164,7 @@ void Editor::set_default_keybinds()
// ^[.: alt-.: insert last arg of previous command (similar to `!$`)
register_key_input_callback(Key { '.', Key::Alt }, EDITOR_INTERNAL_FUNCTION(insert_last_words));
register_key_input_callback(ctrl('Y'), EDITOR_INTERNAL_FUNCTION(insert_last_erased));
register_key_input_callback(Key { 'b', Key::Alt }, EDITOR_INTERNAL_FUNCTION(cursor_left_word));
register_key_input_callback(Key { 'f', Key::Alt }, EDITOR_INTERNAL_FUNCTION(cursor_right_word));
register_key_input_callback(Key { ctrl('B'), Key::Alt }, EDITOR_INTERNAL_FUNCTION(cursor_left_nonspace_word));