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path: root/.vim/after/ftplugin/markdown.lua
blob: 76d1bf12cbd5d9a0b540e63cbcb4454105379e00 (plain) (blame)
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local nnoremap = require('astronauta.keymap').nnoremap

require('spell')
vim.opt.foldlevel = 1

-- vim.fn.matchadd('Conceal', '\\[ \\]', 0, -1, { conceal = '☐' })
-- vim.fn.matchadd('Conceal', '\\[x\\]', 0, -1, { conceal = '☑' })
-- vim.fn.matchadd('Conceal', '\\[-\\]', 0, -1, { conceal = '☒' })
-- vim.fn.matchadd('Conceal', '\\[\\]', 0, -1, { conceal = '🞕' })

nnoremap {
  '<Plug>Markdown_OpenUrlUnderCursor',
  function() require('misc').open_under_cursor('url-launcher') end,
}

nnoremap { '<leader>zn', function() require('zk').new() end }
nnoremap { '<leader>zi', function() require('zk').index() end }
vim.cmd [[ command! -nargs=* ZettelkastenNew lua require('zk').new(nil, <f-args>) ]]

-- markdown list folding
local function calc_lvl(line)
  local i, k = string.find(line, '^[ ]*[*-]')
  if i and k then return ((k-i) / vim.fn.shiftwidth()) + 1 end
  return 0
end
function _G.markdown_lst_foldexpr(lnum)
  local lines = vim.api.nvim_buf_get_lines(0, lnum-1, lnum+1, false)
  if not #lines == 2 then
    return '='
  end
  local lvl_c = calc_lvl(lines[1])
  local lvl_n = calc_lvl(lines[2])
  if lvl_c > 0 then
    if lvl_c < lvl_n then return '>'..lvl_c end -- starts
    if lvl_c > lvl_n then return '<'..lvl_c end -- ends
  end
  return lvl_c
end
vim.opt.foldlevel = 0
vim.opt.foldexpr = 'v:lua.markdown_lst_foldexpr(v:lnum)'