Le Tan 1f0ee88770 refactor edit operations
- Ctrl+B/I/K/D/M: Revert if content between the markers is empty.
- Ctrl+7: delete title mark.
2017-11-24 19:56:25 +08:00
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2017-11-24 19:56:25 +08:00
2017-11-24 19:56:25 +08:00