| " 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: 2005 Jun 23 |
| |
| " Only load this indent file when no other was loaded. |
| if exists("b:did_indent") |
| finish |
| endif |
| let b:did_indent = 1 |
| |
| setlocal indentexpr=GetLuaIndent() |
| |
| " To make Vim call GetLuaIndent() when it finds '\s*end' or '\s*until' |
| " on the current line ('else' is default and includes 'elseif'). |
| setlocal indentkeys+=0=end,0=until |
| |
| setlocal autoindent |
| |
| " Only define the function once. |
| if exists("*GetLuaIndent") |
| finish |
| endif |
| |
| 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 that start a block: |
| " '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\>\|then\>\)' |
| \ || 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. too. |
| 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 |
