Vim London: Custom Motions

An overview of motions and how to create custom motions.

Transcript

1. Custom Motions in Vim Alex
2. Goals ‣ Revise
3. Motions move the cursor What
4. Custom Motions ‣ Motions
5. Vim’s Grammar [operator][count][motion] Change
6. Vim’s Grammar [operator][count][motion] d 2 w delete 2 words Wednesday, 30 January 13
7. Vim’s Grammar [operator][count][motion] Operator- Pending
8. Operator-Pending Mode ‣ Map
9. Mappings ‣ Example:
10. Mappings " From: learnvimscriptthehardway.stevelosh.com/chapters/51.html function! s:NextSection(type, backwards) endfunction noremap <script> <buffer> <silent> ]] :call <SID>NextSection(1, 0)<cr> noremap <script> <buffer> <silent> [[ :call <SID>NextSection(1, 1)<cr> noremap <script> <buffer> <silent> ][ :call <SID>NextSection(2, 0)<cr> noremap <script> <buffer> <silent> [] :call <SID>NextSection(2, 1)<cr> Wednesday, 30 January 13
11. Mappings function! s:NextSection(type, backwards) if a:type == 1 let pattern = ... elseif a:type == 2 let pattern = ... endif if a:backwards let dir = '?' else let dir = '/' endif execute 'silent normal! ' . dir . pattern . "\r" endfunction Wednesday, 30 January 13
12. In the Wild ‣ Functions ‣ search() ‣ Keys
13. search() ‣ Regular
14. Another Example ‣ New! ‣ Like
15. The End omap search() noremap Wednesday, 30 January 13