125 lines
3.7 KiB
VimL
125 lines
3.7 KiB
VimL
" 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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"
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" This file has been manually translated from Vim9 script.
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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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let s:cpo_save = &cpo
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set cpo&vim
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let 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=s:GetOdinIndent(v:lnum)
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function s:PrevLine(lnum) abort
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let plnum = a:lnum - 1
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while plnum > 1
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let plnum = prevnonblank(plnum)
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let 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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let plnum -= 1
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endwhile
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if getline(plnum) =~# '^\s*/\*'
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let 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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let 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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endfunction
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function s:GetOdinIndent(lnum) abort
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let plnum = s:PrevLine(a:lnum)
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let pline = getline(plnum)
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let 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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let indent = cindent(a:lnum)
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let line = getline(a:lnum)
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if line =~# '^\s*#\k\+'
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if pline =~# '[{:]\s*$'
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let indent = pindent + shiftwidth()
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else
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let indent = pindent
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endif
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elseif pline =~# 'switch\s.*{\s*$'
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let indent = pindent
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elseif pline =~# 'case\s*.*,\s*\(//.*\)\?$' " https://github.com/habamax/vim-odin/issues/8
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let indent = pindent + matchstr(pline, 'case\s*')->strcharlen()
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elseif line =~# '^\s*case\s\+.*,\s*$'
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let 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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let indent = pindent + shiftwidth()
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endif
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elseif pline =~# '^\s*@.*' && line !~# '^\s*}'
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let indent = pindent
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elseif pline =~# ':[:=].*}\s*$'
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let indent = pindent
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elseif pline =~# '^\s*}\s*$'
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if line !~# '^\s*}' && line !~# 'case\s*.*:\s*$'
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let indent = pindent
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else
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let indent = pindent - shiftwidth()
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endif
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elseif pline =~# '\S:\s*$'
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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*$'
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let indent = indent(idx) + shiftwidth()
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break
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endif
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endfor
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elseif pline =~# '{[^{]*}\s*$' && line !~# '^\s*[})]\s*$' " https://github.com/habamax/vim-odin/issues/2
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let indent = pindent
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elseif pline =~# '^\s*}\s*$' " 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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call cursor(plnum, 1)
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silent normal! %
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let brlnum = line('.')
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let brline = getline('.')
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if plnum != brlnum && (brline =~# '^\s*\k\+:\s\+for' || brline =~# '^\s*\k\+\s*:=')
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let indent = pindent
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endif
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endif
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return indent
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endfunction
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let &cpo = s:cpo_save
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unlet s:cpo_save
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