I'm using crimson editor, a good text editor from Korea. It has worked very well for me till now, but it has not been updated since 2004 and recently I found some features that crimson editor does not have,such as code folding, really useful. So I want to switch to a powerful, up-to-date, extendable and cross-platform editor. Between vi and Emacs, I chose the later one. Emacs is not easy to learn, so I just want to learn some basic features firstly. 1. Switch between buffers, buffer and minibuffer, and modes. One does not need to change into a special mode to input the content in Emacs (This is one reason why I did not choose vi), but Emacs does have a minibuffer to take some complected commands from the user. And in Emacs one can have many buffers and each buffer has a mode (not the same "mode" in vi). So have to learn what they are and how to switch between them. 2. Basic editing, such as creat new, open, save, and close file, copy and paste, search and replace ... 3. F...
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