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51 lines
1.2 KiB
VimL
51 lines
1.2 KiB
VimL
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" Language: Typst
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" Maintainer: Gregory Anders
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" Last Change: 2024-07-14
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" Based on: https://github.com/kaarmu/typst.vim
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function! typst#indentexpr() abort
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let l:lnum = v:lnum
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let s:sw = shiftwidth()
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let [l:plnum, l:pline] = s:get_prev_nonblank(l:lnum - 1)
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if l:plnum == 0 | return 0 | endif
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let l:line = getline(l:lnum)
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let l:ind = indent(l:plnum)
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let l:synname = synIDattr(synID(l:lnum, 1, 1), 'name')
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" Use last indent for block comments
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if l:synname == 'typstCommentBlock'
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return l:ind
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endif
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if l:pline =~ '\v[{[(]\s*$'
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let l:ind += s:sw
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endif
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if l:line =~ '\v^\s*[}\])]'
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let l:ind -= s:sw
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endif
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return l:ind
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endfunction
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" Gets the previous non-blank line that is not a comment.
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function! s:get_prev_nonblank(lnum) abort
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let l:lnum = prevnonblank(a:lnum)
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let l:line = getline(l:lnum)
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while l:lnum > 0 && l:line =~ '^\s*//'
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let l:lnum = prevnonblank(l:lnum - 1)
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let l:line = getline(l:lnum)
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endwhile
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return [l:lnum, s:remove_comments(l:line)]
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endfunction
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" Removes comments from the given line.
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function! s:remove_comments(line) abort
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return substitute(a:line, '\s*//.*', '', '')
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endfunction
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