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" Vim indent file
" Language: Device Tree
" Maintainer: Roland Hieber, Pengutronix <rhi@pengutronix.de>
"
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal autoindent
setlocal nosmartindent
setlocal indentkeys=o,O,0},0<>>,!<Ctrl-F>
setlocal indentexpr=GetDTSIndent()
setlocal nolisp
let b:undo_indent = 'setl autoindent< smartindent< indentkeys< indentexpr< lisp<'
function GetDTSIndent()
let sw = shiftwidth()
let lnum = v:lnum
let line = getline(lnum)
let prevline = getline(prevnonblank(lnum-1))
let prevind = indent(prevnonblank(lnum-1))
if prevnonblank(lnum-1) < 1
return 0
endif
" Don't indent header and preprocessor directives
if line =~ '^\s*\(/dts-\|#\(include\|define\|undef\|warn\(ing\)\?\|error\|if\(n\?def\)\?\|else\|elif\|endif\)\)'
return 0
" Don't indent /node and &label blocks
elseif line =~ '^\s*[/&].\+{\s*$'
return 0
" Indent to matching bracket or remove one shiftwidth if line begins with } or >
elseif line =~ '^\s*[}>]'
" set cursor to closing bracket on current line
let col = matchend(line, '^\s*[>}]')
call cursor(lnum, col)
" determine bracket type, {} or <>
let pair = strpart('{}<>', stridx('}>', line[col-1]) * 2, 2)
" find matching bracket pair
let pairline = searchpair(pair[0], '', pair[1], 'bW')
if pairline > 0
return indent(pairline)
else
return prevind - sw
endif
" else, add one level of indent if line ends in { or < or = or ,
elseif prevline =~ '[{<=,]$'
return prevind + sw
else
return prevind
endif
endfunction
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