misc/vim/indent/factor.vim

   1 " Vim indent file
   2 " Language:     Factor
   3 " Maintainer:   Giftpflanze <gifti@tools.wmflabs.org>
   4 " Last Change:  2022 August 23
   5
   6 if exists("b:did_indent")
   7         finish
   8 endif
   9 let b:did_indent = 1
  10
  11 setlocal indentexpr=GetFactorIndent(v:lnum)
  12
  13 let b:undo_indent = 'setlocal indentexpr<'
  14
  15 if exists("*GetFactorIndent")
  16         finish
  17 endif
  18
  19 function! GetFactorIndent(lnum)
  20         let cline = getline(a:lnum)
  21         let pline = getline(a:lnum-1)
  22         let pind = indent(a:lnum-1)
  23         if pline =~ '^:'
  24                 return pind + shiftwidth()
  25         endif
  26         if pline =~ ';$'
  27                 return pind - shiftwidth()
  28         endif
  29         if pline =~ '[{[]$'
  30                 return pind + shiftwidth()
  31         endif
  32         if cline =~ '^\s*[\]}]'
  33                 return pind - shiftwidth()
  34         endif
  35         return pind
  36 endfunction