42 lines
785 B
VimL
42 lines
785 B
VimL
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" Vim indent file
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" Language: Treetop
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" Maintainer: Doug Kearns <dougkearns@gmail.com>
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" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
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" Last Change: 2022 April 25
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if exists("b:did_indent")
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finish
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endif
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let b:did_indent = 1
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setlocal indentexpr=GetTreetopIndent()
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setlocal indentkeys=0{,0},!^F,o,O,=end
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setlocal nosmartindent
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let b:undo_indent = "setl inde< indk< si<"
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if exists("*GetTreetopIndent")
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finish
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endif
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function GetTreetopIndent()
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let pnum = prevnonblank(v:lnum - 1)
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if pnum == 0
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return 0
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endif
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let ind = indent(pnum)
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let line = getline(pnum)
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if line =~ '^\s*\%(grammar\|module\|rule\)\>'
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let ind += shiftwidth()
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endif
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let line = getline(v:lnum)
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if line =~ '^\s*end\>'
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let ind -= shiftwidth()
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end
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return ind
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endfunction
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