mirror of
https://github.com/leafOfTree/vim-vue-plugin.git
synced 2025-12-09 06:04:46 +08:00
100 lines
2.7 KiB
VimL
100 lines
2.7 KiB
VimL
let s:config = vue#GetConfig('config', {})
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let s:enable_foldexpr = s:config.foldexpr
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if !s:enable_foldexpr | finish | endif
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" set debug=msg
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function! VueFoldMain(...)
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if line('$') < 1000
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let s:empty_line = '^\s*$'
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let s:vue_tag_start = '^<\w\+'
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let s:vue_tag_end = '^<\/\w\+'
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setlocal foldexpr=GetVueFold(v:lnum)
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setlocal foldmethod=expr
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endif
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endfunction
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" see :h fold-expr
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" value meaning
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" 0 the line is not in a fold
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" 1, 2, .. the line is in a fold with this level
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" -1 the fold level is undefined, use the fold level of a
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" line before or after this line, whichever is the
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" lowest.
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" "=" use fold level from the previous line
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" "a1", "a2", .. add one, two, .. to the fold level of the previous
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" line, use the result for the current line
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" "s1", "s2", .. subtract one, two, .. from the fold level of the
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" ">1", ">2", .. a fold with this level starts at this line
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" "<1", "<2", .. a fold with this level ends at this line
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function! GetVueFold(lnum)
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let this_line = getline(a:lnum)
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let value = s:FoldForSpecialLine(this_line)
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if value == -2
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" Fold by indent
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let this_indent = s:IndentLevel(a:lnum)
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" For <script> block
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if GetVueTag(a:lnum) == 'script'
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let value = s:GetVueFoldForScript(a:lnum, this_line, this_indent)
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else
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let value = this_indent
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endif
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endif
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call vue#LogWithLnum('foldlevel '.value)
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return value
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endfunction
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function! s:GetVueFoldForScript(lnum, this_line, this_indent)
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let value = -2
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if a:lnum > 1
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let prev_indent = s:IndentLevel(a:lnum - 1)
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else
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let prev_indent = 0
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endif
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let next_indent = s:IndentLevel(nextnonblank(a:lnum))
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if a:this_line =~ '[]})],\?\s*$'
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" Closing ']})'
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let value = '<'.prev_indent
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elseif a:this_indent < next_indent
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" --this
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" ----next
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let value = '>'.next_indent
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elseif a:this_indent >= next_indent
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" ----this
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" --next
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let value = a:this_indent
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endif
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return value
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endfunction
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function! s:FoldForSpecialLine(this_line)
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if a:this_line =~ s:empty_line
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return -1
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elseif a:this_line =~ s:vue_tag_start
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return '>1'
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elseif a:this_line =~ s:vue_tag_end
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" If return '<1', fold will get incorrect with prev line
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return 1
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else
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return -2
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endif
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endfunction
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function! s:IndentLevel(lnum)
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" Add 1 to indentLevel, so start/end tags can fold properly
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return indent(a:lnum) / &shiftwidth + 1
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endfunction
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"}}}
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let s:test = exists('g:vim_vue_plugin_test')
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let s:timer = exists('*timer_start') && !exists('SessionLoad') && !s:test
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if s:timer
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call timer_start(300, 'VueFoldMain')
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else
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call VueFoldMain()
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endif
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