120 lines
3.5 KiB
VimL
120 lines
3.5 KiB
VimL
vim9script
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# Vim indent plugin file
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# Language: Odin
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# Maintainer: Maxim Kim <habamax@gmail.com>
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# Website: https://github.com/habamax/vim-odin
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# Last Change: 2024-01-15
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if exists("b:did_indent")
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finish
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endif
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b:did_indent = 1
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b:undo_indent = 'setlocal cindent< cinoptions< cinkeys< indentexpr<'
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setlocal cindent
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setlocal cinoptions=L0,m1,(s,j1,J1,l1,+0,:0,#1
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setlocal cinkeys=0{,0},0),0],!^F,:,o,O
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setlocal indentexpr=GetOdinIndent(v:lnum)
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def PrevLine(lnum: number): number
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var plnum = lnum - 1
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var pline: string
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while plnum > 1
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plnum = prevnonblank(plnum)
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pline = getline(plnum)
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# XXX: take into account nested multiline /* /* */ */ comments
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if pline =~ '\*/\s*$'
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while getline(plnum) !~ '/\*' && plnum > 1
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plnum -= 1
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endwhile
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if getline(plnum) =~ '^\s*/\*'
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plnum -= 1
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else
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break
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endif
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elseif pline =~ '^\s*//'
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plnum -= 1
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else
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break
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endif
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endwhile
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return plnum
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enddef
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def GetOdinIndent(lnum: number): number
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var plnum = PrevLine(lnum)
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var pline = getline(plnum)
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var pindent = indent(plnum)
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# workaround of cindent "hang"
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# if the previous line looks like:
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# : #{}
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# : #whatever{whateverelse}
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# and variations where : # { } are in the string
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# cindent(lnum) hangs
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if pline =~ ':\s\+#.*{.*}'
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return pindent
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endif
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var indent = cindent(lnum)
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var line = getline(lnum)
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if line =~ '^\s*#\k\+'
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if pline =~ '[{:]\s*$'
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indent = pindent + shiftwidth()
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else
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indent = pindent
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endif
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elseif pline =~ 'switch\s.*{\s*$'
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indent = pindent
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elseif pline =~ 'case\s*.*,\s*\(//.*\)\?$' # https://github.com/habamax/vim-odin/issues/8
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indent = pindent + matchstr(pline, 'case\s*')->strcharlen()
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elseif line =~ '^\s*case\s\+.*,\s*$'
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indent = pindent - shiftwidth()
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elseif pline =~ 'case\s*.*:\s*\(//.*\)\?$'
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if line !~ '^\s*}\s*$' && line !~ '^\s*case[[:space:]:]'
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indent = pindent + shiftwidth()
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endif
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elseif pline =~ '^\s*@.*' && line !~ '^\s*}'
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indent = pindent
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elseif pline =~ ':[:=].*}\s*$'
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indent = pindent
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elseif pline =~ '^\s*}\s*$'
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if line !~ '^\s*}' && line !~ 'case\s*.*:\s*$'
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indent = pindent
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else
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indent = pindent - shiftwidth()
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endif
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elseif pline =~ '\S:\s*$'
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# looking up for a case something,
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# whatever,
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# anything:
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# ... 20 lines before
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for idx in range(plnum - 1, plnum - 21, -1)
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if plnum < 1
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break
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endif
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if getline(idx) =~ '^\s*case\s.*,\s*$'
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indent = indent(idx) + shiftwidth()
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break
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endif
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endfor
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elseif pline =~ '{[^{]*}\s*$' && line !~ '^\s*[})]\s*$' # https://github.com/habamax/vim-odin/issues/2
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indent = pindent
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elseif pline =~ '^\s*}\s*$' # https://github.com/habamax/vim-odin/issues/3
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# Find line with opening { and check if there is a label:
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# If there is, return indent of the closing }
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cursor(plnum, 1)
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silent normal! %
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var brlnum = line('.')
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var brline = getline('.')
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if plnum != brlnum && (brline =~ '^\s*\k\+:\s\+for' || brline =~ '^\s*\k\+\s*:=')
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indent = pindent
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endif
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endif
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return indent
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enddef
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