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a25ec00f88
closes: vim/vim#15897
421ed14b8a
Co-authored-by: Luca Saccarola <github.e41mv@aleeas.com>
76 lines
1.8 KiB
VimL
76 lines
1.8 KiB
VimL
" Language: Typst
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" Maintainer: Gregory Anders
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" Last Change: 2024 Oct 21
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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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function typst#foldexpr()
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let line = getline(v:lnum)
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" Whenever the user wants to fold nested headers under the parent
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let nested = get(g:, "typst_foldnested", 1)
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" Regular headers
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let depth = match(line, '\(^=\+\)\@<=\( .*$\)\@=')
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" Do not fold nested regular headers
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if depth > 1 && !nested
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let depth = 1
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endif
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if depth > 0
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" check syntax, it should be typstMarkupHeading
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let syncode = synstack(v:lnum, 1)
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if len(syncode) > 0 && synIDattr(syncode[0], 'name') ==# 'typstMarkupHeading'
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return ">" . depth
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endif
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endif
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return "="
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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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