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32449
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1 " Vim indent file
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2 " Language: Device Tree
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3 " Maintainer: Roland Hieber, Pengutronix <rhi@pengutronix.de>
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4 "
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5 if exists("b:did_indent")
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6 finish
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7 endif
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8 let b:did_indent = 1
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9
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10 setlocal autoindent
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11 setlocal nosmartindent
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12 setlocal indentkeys=o,O,0},0<>>,!<Ctrl-F>
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13 setlocal indentexpr=GetDTSIndent()
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14 setlocal nolisp
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15
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16 let b:undo_indent = 'setl autoindent< smartindent< indentkeys< indentexpr< lisp<'
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17
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18 function GetDTSIndent()
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19 let sw = shiftwidth()
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20 let lnum = v:lnum
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21 let line = getline(lnum)
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22 let prevline = getline(prevnonblank(lnum-1))
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23 let prevind = indent(prevnonblank(lnum-1))
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24
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25 if prevnonblank(lnum-1) < 1
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26 return 0
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27 endif
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28
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29 " Don't indent header and preprocessor directives
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30 if line =~ '^\s*\(/dts-\|#\(include\|define\|undef\|warn\(ing\)\?\|error\|if\(n\?def\)\?\|else\|elif\|endif\)\)'
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31 return 0
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32
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33 " Don't indent /node and &label blocks
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34 elseif line =~ '^\s*[/&].\+{\s*$'
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35 return 0
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36
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37 " Indent to matching bracket or remove one shiftwidth if line begins with } or >
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38 elseif line =~ '^\s*[}>]'
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39 " set cursor to closing bracket on current line
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40 let col = matchend(line, '^\s*[>}]')
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41 call cursor(lnum, col)
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42
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43 " determine bracket type, {} or <>
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44 let pair = strpart('{}<>', stridx('}>', line[col-1]) * 2, 2)
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45
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46 " find matching bracket pair
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47 let pairline = searchpair(pair[0], '', pair[1], 'bW')
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48
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49 if pairline > 0
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50 return indent(pairline)
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51 else
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52 return prevind - sw
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53 endif
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54
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55 " else, add one level of indent if line ends in { or < or = or ,
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56 elseif prevline =~ '[{<=,]$'
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57 return prevind + sw
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58
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59 else
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60 return prevind
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61 endif
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62
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63 endfunction
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