8/9/2023 0 Comments Vim macThat said, many people who have started using it and become comfortable with it won't even consider another editor. Vim isn't for everyone, and it requires you to learn a variety of Vim editor commands to get the most out of it. The idea behind having a modal text editor is that it allows you to write and edit text, including code, without requiring your hands leave the keyboard. To open a file using Vim you can use the following command (simply replace filename.css with your actual file name). If you play video games that use the left-hand keys on the keyboard to move your character around, this concept is probably familiar to you. However, if you switch to command mode, the letters on your keyboard will allow you use Vim commands to move within the text. A modal editor is one that allows you to edit text in different modes, and in the case of Vim, the mode determines what the alphanumeric keys on your keyboard do and how Vim editor commands work.įor example, in insert mode, your keyboard behaves normally, so what you type in is what you see, just like with a standard text editor. While you may be familiar with the concept of a text editor, the modal part may throw you. While it was designed with Unix in mind, versions of it are available for most operating systems and Vim is also available for Android and iOS smartphones. Available both as a command line interface and as a standalone program with a GUI, Vim is a text editor that is a modal version of the vi editor created for Unix in the 1970s Vim stands for vi improved. The Shift modifier inverts the behavior.Vim was made available in 1991 and is a free, open source software. When using a line-oriented program like a shell on the main screen, they continue to scroll the terminal view by default. Instead, it has a dynamic behavior where the keys automatically map to start/end-of-line when the alternate screen is active-e.g., when using a full-screen application like emacs, vim, screen or tmux. Note that in more-recent versions of macOS, Terminal no longer has explicit mappings for Home and End in the preferences by default. Assuming these aren't in use by Vim, the simplest approach would be to customize Vim to accept these, using ~/.vimrc. Instead, they're mapped to the Emacs- and Bash-compatible sequences ESC [ 5 D and ESC [ 5 C. (On other OSes, Home and End are used for start/end of line, so Terminal provides them with the Shift modifier for symmetry.)Ĭontrol- Left Arrow and Control- Right Arrow are also mapped to "move to start/end of line" sequences by default, though they're different from the ones mapped to Shift- Home and Shift- End. So you may wish to change the keyboard map to send these other codes instead (Bash also understands them). Vim, Emacs, and some other programs send an escape sequence to put the terminal into “Application Cursor Mode”, where the Home/End keys send ESC O H and ESC O F, but Terminal (as of 10.9) does not implement this behavior. These sequences are understood by Bash, but you may have to customize Vim to understand them, or edit the mappings specifically for Vim. Similarly, Shift- Home and Shift- End are mapped to move to the start/end of the current line ( ESC [ H and ESC [ F). Also, see the View menu, which contains scrolling commands that use the Command modifier so they're available regardless of the terminal keyboard map. If you do this, I recommend you invert the meaning of the Shift modifier for these keys by swapping the mappings for the shifted and unshifted keys, so that the alternative behaviors are still available. Terminal > Preferences > Settings > Keyboard If you want these keys to send character sequences to the terminal without the Shift modifier, you can customize the keyboard map: Terminal's default preferences map Shift- Page Up and Shift- Page Down to the character sequences that tell programs like Vim and Emacs to scroll ( ESC [ 5 ~ and ESC [ 6 ~).
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