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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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2
Userland/Libraries/LibLine/Editor.h
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@ -124,6 +124,7 @@ struct Configuration {
M(transpose_characters) \
M(transpose_words) \
M(insert_last_words) \
M(insert_last_erased) \
M(erase_alnum_word_backwards) \
M(erase_alnum_word_forwards) \
M(capitalize_word) \
@ -505,6 +506,7 @@ private:
RefPtr<Core::Notifier> m_notifier;
Vector<u32> m_paste_buffer;
Vector<u32> m_last_erased;
bool m_initialized { false };
bool m_refresh_needed { false };