1" Vim indent file 2" Language: Lua script 3" Maintainer: Marcus Aurelius Farias <marcus.cf 'at' bol.com.br> 4" First Author: Max Ischenko <mfi 'at' ukr.net> 5" Last Change: 2005 Jun 09 6 7" Only load this indent file when no other was loaded. 8if exists("b:did_indent") 9 finish 10endif 11let b:did_indent = 1 12 13" Only define the function once. 14if exists("*GetLuaIndent") 15 finish 16endif 17 18setlocal indentexpr=GetLuaIndent() 19 20" To make Vim call GetLuaIndent() when it finds '\s*end' or '\s*until' 21" on the current line (else is default). 22setlocal indentkeys+=0=end,0=until 23 24setlocal autoindent 25 26function! GetLuaIndent() 27 " Find a non-blank line above the current line. 28 let lnum = prevnonblank(v:lnum - 1) 29 30 " Hit the start of the file, use zero indent. 31 if lnum == 0 32 return 0 33 endif 34 35 " Add a 'shiftwidth' after lines beginning with: 36 " function, if, for, while, repeat, else, elseif, '{' 37 let ind = indent(lnum) 38 let flag = 0 39 let prevline = getline(lnum) 40 if prevline =~ '^\s*\%(if\>\|for\>\|while\>\|repeat\>\|else\>\|elseif\>\|do\>\)' || prevline =~ '{\s*$' || prevline =~ '\<function\>\s*\%(\k\|[.:]\)\{-}\s*(' 41 let ind = ind + &shiftwidth 42 let flag = 1 43 endif 44 45 " Subtract a 'shiftwidth' after lines ending with 46 " 'end' when they begin with while, if, for, etc. 47 if flag == 1 && prevline =~ '\<end\>\|\<until\>' 48 let ind = ind - &shiftwidth 49 endif 50 51 " Subtract a 'shiftwidth' on end, else (and elseif), until and '}' 52 " This is the part that requires 'indentkeys'. 53 if getline(v:lnum) =~ '^\s*\%(end\|else\|until\|}\)' 54 let ind = ind - &shiftwidth 55 endif 56 57 return ind 58endfunction 59