| Bram Moolenaar | 071d427 | 2004-06-13 20:20:40 +0000 | [diff] [blame] | 1 | " Vim indent file |
| 2 | " Language: Vim script |
| 3 | " Maintainer: Bram Moolenaar <Bram@vim.org> |
| 4 | " Last Change: 2003 May 25 |
| 5 | |
| 6 | " Only load this indent file when no other was loaded. |
| 7 | if exists("b:did_indent") |
| 8 | finish |
| 9 | endif |
| 10 | let b:did_indent = 1 |
| 11 | |
| 12 | setlocal indentexpr=GetVimIndent() |
| 13 | setlocal indentkeys+==end,=else,=cat,=fina,=END,0\\ |
| 14 | |
| 15 | " Only define the function once. |
| 16 | if exists("*GetVimIndent") |
| 17 | finish |
| 18 | endif |
| 19 | |
| 20 | function GetVimIndent() |
| 21 | " Find a non-blank line above the current line. |
| 22 | let lnum = prevnonblank(v:lnum - 1) |
| 23 | |
| 24 | " If the current line doesn't start with '\' and below a line that starts |
| 25 | " with '\', use the indent of the line above it. |
| 26 | if getline(v:lnum) !~ '^\s*\\' |
| 27 | while lnum > 0 && getline(lnum) =~ '^\s*\\' |
| 28 | let lnum = lnum - 1 |
| 29 | endwhile |
| 30 | endif |
| 31 | |
| 32 | " At the start of the file use zero indent. |
| 33 | if lnum == 0 |
| 34 | return 0 |
| 35 | endif |
| 36 | |
| 37 | " Add a 'shiftwidth' after :if, :while, :try, :catch, :finally, :function |
| 38 | " and :else. Add it three times for a line that starts with '\' after |
| 39 | " a line that doesn't. |
| 40 | let ind = indent(lnum) |
| 41 | if getline(v:lnum) =~ '^\s*\\' && v:lnum > 1 && getline(lnum) !~ '^\s*\\' |
| 42 | let ind = ind + &sw * 3 |
| 43 | elseif getline(lnum) =~ '\(^\||\)\s*\(if\|wh\%[ile]\|try\|cat\%[ch]\|fina\%[lly]\|fu\%[nction]\|el\%[seif]\)\>' |
| 44 | let ind = ind + &sw |
| 45 | elseif getline(lnum) =~ '^\s*aug\%[roup]' && getline(lnum) !~ '^\s*aug\%[roup]\s*!\=\s\+END' |
| 46 | let ind = ind + &sw |
| 47 | endif |
| 48 | |
| 49 | " If the previous line contains an "end" after a pipe, but not in an ":au" |
| 50 | " command. |
| 51 | if getline(lnum) =~ '|\s*\(ene\@!\)' && getline(lnum) !~ '^\s*au\%[tocmd]' |
| 52 | let ind = ind - &sw |
| 53 | endif |
| 54 | |
| 55 | |
| 56 | " Subtract a 'shiftwidth' on a :endif, :endwhile, :catch, :finally, :endtry, |
| 57 | " :endfun, :else and :augroup END. |
| 58 | if getline(v:lnum) =~ '^\s*\(ene\@!\|cat\|fina\|el\|aug\%[roup]\s*!\=\s\+END\)' |
| 59 | let ind = ind - &sw |
| 60 | endif |
| 61 | |
| 62 | return ind |
| 63 | endfunction |
| 64 | |
| 65 | " vim:sw=2 |