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50 lines
1.4 KiB
VimL
50 lines
1.4 KiB
VimL
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" Vim indent file
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" Language: Lua script
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" Maintainer: Marcus Aurelius Farias <marcuscf@vant.com.br>
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" First Author: Max Ischenko <mfi@ukr.net>
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" Last Change: 2003 Jan 20
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" Only define the function once.
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if exists("*GetLuaIndent") | finish | endif
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setlocal indentexpr=GetLuaIndent()
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" To make Vim call GetLuaIndent() when it finds '\s*end' or '\s*until'
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" on the current line (else is default).
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setlocal indentkeys+=0=end,0=until
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setlocal autoindent
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function! GetLuaIndent()
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" Find a non-blank line above the current line.
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let lnum = prevnonblank(v:lnum - 1)
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" Hit the start of the file, use zero indent.
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if lnum == 0
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return 0
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endif
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" Add a 'shiftwidth' after lines beginning with:
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" function, if, for, while, repeat, else, elseif, '{'
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let ind = indent(lnum)
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let flag = 0
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if getline(lnum) =~ '^\s*\(function\>\|if\>\|for\>\|while\>\|repeat\>\|else\>\|elseif\>\|do\>\)' || getline(lnum) =~ '{\s*$' || getline(lnum) =~ '\s*=\s*function'
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let ind = ind + &sw
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let flag = 1
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endif
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" Subtract a 'shiftwidth' after lines ending with
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" 'end' when they begin with while, if, for, etc.
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if flag == 1 && getline(lnum) =~ '\<end\>\|\<until\>'
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let ind = ind - &sw
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endif
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" Subtract a 'shiftwidth' on end, else (and elseif), until and '}'
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" This is the part that requires 'indentkeys'.
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if getline(v:lnum) =~ '^\s*\(end\|else\|until\|}\)'
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let ind = ind - &sw
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endif
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return ind
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endfunction
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