Lecture 3 : Editors (Vim)

1. Complete vimtutor. Note: it looks best in a 80x24 (80 columns by 24 lines) terminal window.

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2. Download our basic vimrc and save it to ~/.vimrc. Read through the well-commented file (using Vim!), and observe how Vim looks and behaves slightly differently with the new config.

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3. Install and configure a plugin: ctrlp.vim.
   1. Create the plugins directory with mkdir -p ~/.vim/pack/vendor/start
   2. Download the plugin: cd ~/.vim/pack/vendor/start; git clone https://github.com/ctrlpvim/ctrlp.vim
   3. Read the documentation for the plugin. Try using CtrlP to locate a file by navigating to a project directory, opening Vim, and using the Vim command-line to start :CtrlP.
   4. Customize CtrlP by adding configuration to your ~/.vimrc to open CtrlP by pressing Ctrl-P.

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4. To practice using Vim, re-do the Demo from lecture on your own machine.

   Solution:

    import sys
   
    def fizz_buzz(limit):
        for i in range(1, limit):
        if i % 15 == 0:
            print('fizzbuzz')
            continue
        if i % 3 == 0:
            print('fizz')
        if i % 5 == 0:
            print('buzz')
        if i % 3 and i % 5:
            print(i)
   
    def main(argv):
        fizz_buzz(int(argv[1]))
   
    if __name__ == '__main__':
        main(sys.argv)
   

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5. Use Vim for all your text editing for the next month. Whenever something seems inefficient, or when you think “there must be a better way”, try Googling it, there probably is. If you get stuck, come to office hours or send us an email.

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6. Configure your other tools to use Vim bindings (see instructions above).

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7. Further customize your ~/.vimrc and install more plugins.

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8. (Advanced) Convert XML to JSON (example file) using Vim macros. Try to do this on your own, but you can look at the macros section above if you get stuck.

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