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- " Vim indent file
- " Language: Lua script
- " Maintainer: Max Ischenko <mfi@ukr.net>
- " Last Change: 2001 Sep 02
-
- " Only define the function once.
- if exists("*GetLuaIndent") | finish | endif
-
- setlocal indentexpr=GetLuaIndent()
- 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
-
- " If the line trailed with a *, +, comma, . or (, trust the user
- if getline(lnum) =~ '\(\*\|\.\|+\|,\|(\)\(\s*#.*\)\=$'
- " return -1
- endif
-
- " Add a 'shiftwidth' after lines beginning with:
- " module, class, dev, if, for, while, until, else, elsif, case, when, {
- let ind = indent(lnum)
- let flag = 0
- if getline(lnum) =~ '^\s*\(function\>\|if\>\|for\>\|while\>\|until\>\|else\>\|elsif\>\)' || getline(lnum) =~ '{\s*$' || getline(lnum) =~ '\({\|\<do\>\).*|.*|\s*$' || getline(lnum) =~ '\<do\>\(\s*#.*\)\=$' || getline(lnum) =~ '\(\s*=\s*function\)'
- let ind = ind + &sw
- let flag = 1
- endif
-
- " Subtract a 'shiftwidth' after lines ending with
- " "end" when they begin with while, if, for, until
- if flag == 1 && getline(lnum) =~ '\<end\>\(\s*#.*\)\=$'
- let ind = ind - &sw
- endif
-
- " Subtract a 'shiftwidth' on end, else and, elsif, when and }
- if getline(v:lnum) =~ '^\s*\(end\>\|else\>\|elsif\>\|}\)'
- let ind = ind - &sw
- endif
-
- " Subtract a 'shiftwidth' on end, else and, elsif, when and }
- if getline(v:lnum) =~ '\(\<end\>\)'
- " let ind = ind - &sw
- endif
-
- return ind
- endfunction
-