73 lines
2.0 KiB
VimL
73 lines
2.0 KiB
VimL
" Vim indent file
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" Language: llvm
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" Maintainer: The LLVM team, http://llvm.org/
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" What this indent plugin currently does:
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" - If no other rule matches copy indent from previous non-empty,
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" non-commented line
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" - On '}' align the same as the line containing the matching '{'
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" - If previous line ends with ':' increase indentation
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" - If the current line ends with ':' indent at the same level as the
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" enclosing '{'/'}' block
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" Stuff that would be nice to add:
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" - Continue comments on next line
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" - If there is an opening+unclosed parenthesis on previous line indent to that
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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 shiftwidth=2 expandtab
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setlocal indentkeys=0{,0},<:>,!^F,o,O,e
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setlocal indentexpr=GetLLVMIndent()
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if exists("*GetLLVMIndent")
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finish
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endif
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function! FindOpenBrace(lnum)
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call cursor(a:lnum, 1)
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return searchpair('{', '', '}', 'bW')
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endfun
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function! GetLLVMIndent()
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" On '}' align the same as the line containing the matching '{'
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let thisline = getline(v:lnum)
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if thisline =~ '^\s*}'
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call cursor(v:lnum, 1)
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silent normal %
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let opening_lnum = line('.')
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if opening_lnum != v:lnum
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return indent(opening_lnum)
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endif
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endif
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" Indent labels the same as the current opening block
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if thisline =~ ':\s*$'
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let blockbegin = FindOpenBrace(v:lnum)
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if blockbegin > 0
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return indent(blockbegin)
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endif
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endif
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" Find a non-blank not-completely commented line above the current line.
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let prev_lnum = prevnonblank(v:lnum - 1)
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while prev_lnum > 0 && synIDattr(synID(prev_lnum, indent(prev_lnum)+1, 0), "name") =? "string\|comment"
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let prev_lnum = prevnonblank(prev_lnum-1)
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endwhile
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" Hit the start of the file, use zero indent.
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if prev_lnum == 0
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return 0
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endif
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let ind = indent(prev_lnum)
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let prevline = getline(prev_lnum)
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" Add a 'shiftwidth' after lines that start a block or labels
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if prevline =~ '{\s*$' || prevline =~ ':\s*$'
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let ind = ind + &shiftwidth
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endif
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return ind
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endfunction
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