| " Vim indent file |
| " Language: Lua script |
| " Maintainer: Marcus Aurelius Farias <marcus.cf 'at' bol.com.br> |
| " First Author: Max Ischenko <mfi 'at' ukr.net> |
| " Last Change: 2004 Aug 29 |
| |
| " Only define the function once. |
| if exists("*GetLuaIndent") |
| finish |
| endif |
| |
| setlocal indentexpr=GetLuaIndent() |
| |
| " To make Vim call GetLuaIndent() when it finds '\s*end' or '\s*until' |
| " on the current line (else is default). |
| setlocal indentkeys+=0=end,0=until |
| |
| setlocal autoindent |
| |
| function! GetLuaIndent() |
| " Find a non-blank line above the current line. |
| let lnum = prevnonblank(v:lnum - 1) |
| |
| " Hit the start of the file, use zero indent. |
| if lnum == 0 |
| return 0 |
| endif |
| |
| " Add a 'shiftwidth' after lines beginning with: |
| " function, if, for, while, repeat, else, elseif, '{' |
| let ind = indent(lnum) |
| let flag = 0 |
| let prevline = getline(lnum) |
| if prevline =~ '^\s*\%(if\>\|for\>\|while\>\|repeat\>\|else\>\|elseif\>\|do\>\)' || prevline =~ '{\s*$' || prevline =~ '\<function\>\s*\%(\k\|[.:]\)\{-}\s*(' |
| let ind = ind + &shiftwidth |
| let flag = 1 |
| endif |
| |
| " Subtract a 'shiftwidth' after lines ending with |
| " 'end' when they begin with while, if, for, etc. |
| if flag == 1 && prevline =~ '\<end\>\|\<until\>' |
| let ind = ind - &shiftwidth |
| endif |
| |
| " Subtract a 'shiftwidth' on end, else (and elseif), until and '}' |
| " This is the part that requires 'indentkeys'. |
| if getline(v:lnum) =~ '^\s*\%(end\|else\|until\|}\)' |
| let ind = ind - &shiftwidth |
| endif |
| |
| return ind |
| endfunction |
