| Bram Moolenaar | 00a927d | 2010-05-14 23:24:24 +0200 | [diff] [blame] | 1 | " Vim indent file |
| 2 | " Language: ChaiScript |
| 3 | " Maintainer: Jason Turner <lefticus 'at' gmail com> |
| 4 | |
| 5 | " Only load this indent file when no other was loaded. |
| 6 | if exists("b:did_indent") |
| 7 | finish |
| 8 | endif |
| 9 | let b:did_indent = 1 |
| 10 | |
| 11 | setlocal indentexpr=GetChaiScriptIndent() |
| 12 | setlocal autoindent |
| 13 | |
| 14 | " Only define the function once. |
| 15 | if exists("*GetChaiScriptIndent") |
| 16 | finish |
| 17 | endif |
| 18 | |
| 19 | function! GetChaiScriptIndent() |
| 20 | " Find a non-blank line above the current line. |
| 21 | let lnum = prevnonblank(v:lnum - 1) |
| 22 | |
| 23 | " Hit the start of the file, use zero indent. |
| 24 | if lnum == 0 |
| 25 | return 0 |
| 26 | endif |
| 27 | |
| 28 | " Add a 'shiftwidth' after lines that start a block: |
| 29 | " lines containing a { |
| 30 | let ind = indent(lnum) |
| 31 | let flag = 0 |
| 32 | let prevline = getline(lnum) |
| 33 | if prevline =~ '^.*{.*' |
| Bram Moolenaar | 3ec574f | 2017-06-13 18:12:01 +0200 | [diff] [blame] | 34 | let ind = ind + shiftwidth() |
| Bram Moolenaar | 00a927d | 2010-05-14 23:24:24 +0200 | [diff] [blame] | 35 | let flag = 1 |
| 36 | endif |
| 37 | |
| 38 | " Subtract a 'shiftwidth' after lines containing a { followed by a } |
| 39 | " to keep it balanced |
| 40 | if flag == 1 && prevline =~ '.*{.*}.*' |
| Bram Moolenaar | 3ec574f | 2017-06-13 18:12:01 +0200 | [diff] [blame] | 41 | let ind = ind - shiftwidth() |
| Bram Moolenaar | 00a927d | 2010-05-14 23:24:24 +0200 | [diff] [blame] | 42 | endif |
| 43 | |
| 44 | " Subtract a 'shiftwidth' on lines ending with } |
| 45 | if getline(v:lnum) =~ '^\s*\%(}\)' |
| Bram Moolenaar | 3ec574f | 2017-06-13 18:12:01 +0200 | [diff] [blame] | 46 | let ind = ind - shiftwidth() |
| Bram Moolenaar | 00a927d | 2010-05-14 23:24:24 +0200 | [diff] [blame] | 47 | endif |
| 48 | |
| 49 | return ind |
| 50 | endfunction |