| dkearns | e30d8e4 | 2023-09-18 02:51:22 +1000 | [diff] [blame] | 1 | " Vim indent file |
| 2 | " Language: Kotlin |
| 3 | " Maintainer: Alexander Udalov |
| 4 | " URL: https://github.com/udalov/kotlin-vim |
| 5 | " Last Change: 7 November 2021 |
| 6 | " 2023 Sep 17 by Vim Project (undo_indent) |
| 7 | |
| 8 | if exists('b:did_indent') |
| 9 | finish |
| 10 | endif |
| 11 | let b:did_indent = 1 |
| 12 | |
| 13 | setlocal cinoptions& cinoptions+=j1,L0 |
| 14 | setlocal indentexpr=GetKotlinIndent() |
| 15 | setlocal indentkeys=0},0),!^F,o,O,e,<CR> |
| 16 | setlocal autoindent " TODO ? |
| 17 | |
| 18 | let b:undo_indent = "setlocal autoindent< cinoptions< indentexpr< indentkeys<" |
| 19 | |
| 20 | " TODO teach it to count bracket balance, etc. |
| 21 | function! GetKotlinIndent() |
| 22 | if v:lnum == 0 |
| 23 | return 0 |
| 24 | endif |
| 25 | |
| 26 | let prev_num = prevnonblank(v:lnum - 1) |
| 27 | let prev = getline(prev_num) |
| 28 | let prev_indent = indent(prev_num) |
| 29 | let cur = getline(v:lnum) |
| 30 | |
| 31 | if cur =~ '^\s*\*' |
| 32 | return cindent(v:lnum) |
| 33 | endif |
| 34 | |
| 35 | if prev =~ '^\s*\*/' |
| 36 | let st = prev |
| 37 | while st > 1 |
| 38 | if getline(st) =~ '^\s*/\*' |
| 39 | break |
| 40 | endif |
| 41 | let st = st - 1 |
| 42 | endwhile |
| 43 | return indent(st) |
| 44 | endif |
| 45 | |
| 46 | let prev_open_paren = prev =~ '^.*(\s*$' |
| 47 | let cur_close_paren = cur =~ '^\s*).*$' |
| 48 | let prev_open_brace = prev =~ '^.*\({\|->\)\s*$' |
| 49 | let cur_close_brace = cur =~ '^\s*}.*$' |
| 50 | |
| 51 | if prev_open_paren && !cur_close_paren || prev_open_brace && !cur_close_brace |
| 52 | return prev_indent + shiftwidth() |
| 53 | endif |
| 54 | |
| 55 | if cur_close_paren && !prev_open_paren || cur_close_brace && !prev_open_brace |
| 56 | return prev_indent - shiftwidth() |
| 57 | endif |
| 58 | |
| 59 | return prev_indent |
| 60 | endfunction |