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66 lines
1.7 KiB
VimL
66 lines
1.7 KiB
VimL
vim9script
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# Language: ConTeXt typesetting engine
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# Maintainer: Nicola Vitacolonna <nvitacolonna@gmail.com>
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# Former Maintainers: Nikolai Weibull <now@bitwi.se>
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# Latest Revision: 2022 Aug 12
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if exists("b:did_indent")
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finish
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endif
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# Load MetaPost indentation script (this will also set b:did_indent)
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runtime! indent/mp.vim
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setlocal indentexpr=ConTeXtIndent()
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b:undo_indent = "setl indentexpr<"
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def PrevNotComment(l: number): number
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var prevlnum = prevnonblank(l)
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while prevlnum > 0 && getline(prevlnum) =~# '^\s*%'
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prevlnum = prevnonblank(prevlnum - 1)
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endwhile
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return prevlnum
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enddef
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def FindPair(pstart: string, pmid: string, pend: string): number
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cursor(v:lnum, 1)
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return indent(searchpair(pstart, pmid, pend, 'bWn',
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'synIDattr(synID(line("."), col("."), 0), "name") =~? "string\\|comment"'))
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enddef
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def ConTeXtIndent(): number
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# Use MetaPost rules inside MetaPost graphic environments
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if len(synstack(v:lnum, 1)) > 0 &&
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synIDattr(synstack(v:lnum, 1)[0], "name") ==# 'contextMPGraphic'
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return g:MetaPostIndent()
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endif
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const prevlnum = PrevNotComment(v:lnum - 1)
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const prevind = indent(prevlnum)
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const prevline = getline(prevlnum)
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const currline = getline(v:lnum)
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# If the current line starts with ], match indentation.
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if currline =~# '^\s*\]'
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return FindPair('\[', '', '\]')
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endif
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# If the current line starts with }, match indentation.
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if currline =~# '^\s*}'
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return FindPair('{', '', '}')
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endif
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# If the previous line ends with [ or { (possibly followed by a comment) then indent.
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if prevline =~# '[{[]\s*\%(%.*\)\=$'
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return prevind + shiftwidth()
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endif
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return -1
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enddef
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# vim: sw=2 fdm=marker
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