Editing With Vim

A simple guide to a simple text editor

Transcript

1. Wednesday, October 12, 2011
2. Vi Story 1976 Bill Joy writes vi The name vi stands for visual vi-style editors are the most widely spread editors in the UNIX world. It is available on any UNIX system Wednesday, October 12, 2011
3. Vim Story First developed in 1991 by Bram Moolenaar as a vim clone for Amiga It has since changed acronym to vi improved vim is free software licensed as “charityware” Wednesday, October 12, 2011
4. Amiga Where it all started Wednesday, October 12, 2011
5. Vim Advantages Highly customizable Works with many programming languages Strong OS Integration Scriptable Wednesday, October 12, 2011
6. Meet Vim gvim is the cross platform graphics version of vim Wednesday, October 12, 2011
7. Modal Editing Wednesday, October 12, 2011
8. Modal Editor A modal editor changes the meaning of the keys in each mode of operation When using vim editor, we have 4 keyboards at our disposal Vim modes: normal, visual, insert, ex (command prompt) Wednesday, October 12, 2011
9. Normal Mode Wednesday, October 12, 2011
10. Normal Mode In normal mode, we can view and manipulate existing text Operations: move around the buffer, copy-paste, delete lines, save, exit. Wednesday, October 12, 2011
11. Normal Mode In normal mode, every command takes the form: <count><command>[operates_on] For example, 4dw means delete 4 words. Not all commands take the operates on param Wednesday, October 12, 2011
12. Normal Mode Commands Useful commands - delete: d (motion) - delete D - delete until end of line dd - delete complete line x - delete a single character (del) X - delete a single character (backspace) Wednesday, October 12, 2011
13. Normal Mode Commands Useful commands - Yanking (copy-paste): y (motion) - yank Y - yank till end of line yy - yank entire line p - paste text after cursor P - paste text before cursor Wednesday, October 12, 2011
14. Normal Mode Commands Undo/Redo: u - undo <C-r> (hold down control and press r) - redo Wednesday, October 12, 2011
15. Normal Mode Lab Start vim on existing file Delete the first line Move the next 4 lines to the end of the file Save and quit (use ZZ) Wednesday, October 12, 2011
16. Insert Mode Wednesday, October 12, 2011
17. Insert Mode Keys we type represent text to be inserted to the buffer Use one of i,a,o,c to enter Use <Esc> key to get back to normal mode Wednesday, October 12, 2011
18. Normal -> Insert i - keep cursor position a - move cursor to the next character o - move cursor to the next line I - move cursor to beginning of line A - move cursor to end of line Wednesday, October 12, 2011
19. Insert Mode Lab Start vim on existing file Delete first paragraph Write a new first paragraph telling 5 things you love about vim Save and Quit (from normal mode) Wednesday, October 12, 2011
20. Ex Mode Wednesday, October 12, 2011
21. Extended Mode The :ex mode is vim’s command prompt Pressing : in normal mode takes you there Many commands have both ex versions and normal version Wednesday, October 12, 2011
22. Ex Mode Commands :q - close window :w filename - save as :wq - save and exit :e - open a file for editing :r filename - read file and paste its content into current buffer :r !cmd - run unix command and paste its output into current buffer Wednesday, October 12, 2011
23. Ex Mode Commands vim keeps its own current working directory. Can read and change using: :cd, :pwd !cmd - run a unix command !cmd % - run a unix command on current file Wednesday, October 12, 2011
24. Ex Mode Commands Try the following: :!ls :%!ls :pwd :e . Wednesday, October 12, 2011
25. Visual Mode Wednesday, October 12, 2011
26. Visual Mode Commands Enter visual mode using v, V, <C-v> v - enter visual mode selecting characters V - enter visual mode selecting lines <C-v> - enter visual mode selecting blocks Wednesday, October 12, 2011
27. Visual Mode Commands In visual mode, commands will operate on selected text Try selecting some text and press d, y, p, ~ Wednesday, October 12, 2011
28. :help Vim has a manual for every topic Try the following: :help del :help edit :help 42 Wednesday, October 12, 2011
29. Editing Multiple FIles Each window in vim displays a buffer Multiple buffers can be opened at the same time Window can switch active buffer Wednesday, October 12, 2011
30. Working With Buffers :ls - show open buffers :b[id], :b name - move to buffer by id/name :bp, :bn - move to next/previous buffer :bd - close current buffer Wednesday, October 12, 2011
31. Q & A Wednesday, October 12, 2011
32. Customizing Vim Wednesday, October 12, 2011
33. .vimrc file On vim startup, it looks for a .vimrc file in the user’s home directory If such a file exists, every line is executed Next are some useful .vimrc commands Wednesday, October 12, 2011
34. Line Numbers set number Wednesday, October 12, 2011
35. .vimrc set ic “ignore case when searching” set guifont=Courier\ 14 Wednesday, October 12, 2011
36. Key Bindings Vim lets us map any key sequence to any action map binds a key in all modes imap binds a key in insert mode cmap binds a key in command line (ex) mode nmap binds a key in normal mode vmap binds a key in visual mode Wednesday, October 12, 2011
37. Key Bindings Bind C-s to the key sequence <Esc>, :w, enter, and then back to insert mode :imap <C-s> <Esc>:w<cr>a Wednesday, October 12, 2011
38. Key Bindings ala Windows vmap <C-c> y imap <C-p> <Esc>p Wednesday, October 12, 2011
39. Key Bindings ala Windows Open a new file dialog nmap <C-n> :browse confirm e<cr> Open a save as dialog map <C-S-s> :browse confirm saveas<cr> Wednesday, October 12, 2011
40. Q & A Wednesday, October 12, 2011
41. Vim Plugins Provide extra functionality in vim Usually written in vimscript There’s a plugin for that Wednesday, October 12, 2011
42. Where To Find http://vim-scripts.org/vim/scripts.html http://www.vim.org/scripts/index.php dedicated github repositories Wednesday, October 12, 2011
43. DEMO - Installing A Plugin Wednesday, October 12, 2011
44. Recommended Plugins NERDTree Surround Align Command-T NERDCommenter Also worth checking: janus, vundle Wednesday, October 12, 2011
45. Thank You Ynon Perek ynonperek@yahoo.com ynonperek.com Wednesday, October 12, 2011