diagram « pandoc-ext « _extensions - thoughtroam - website: student project to explore semantic web for learning aid

Mode	Name	Size
-rw-r--r--	_extension.yaml	125	log plain
l---------	pandoc-filter-diagram.rust -> /usr/bin/pandoc-filter-diagram	30	log plain

ass="hl kwa">local stringify = (require 'pandoc.utils').stringify

local section_identifiers = {

  abstract = true,

}

local collected = {}

--- The level of the highest heading that was seen so far. Abstracts

--- must be at or above this level to prevent nested sections from being

--- treated as metadata. Only top-level sections should become metadata.

local toplevel = 6

--- Extract abstract from a list of blocks.

local function abstract_from_blocklist (blocks)

local body_blocks = {}

  local looking_at_section = false

  for _, block in ipairs(blocks) do

    if block.t == 'Header' and block.level <= toplevel then

toplevel = block.level

      if section_identifiers[block.identifier] then

looking_at_section = block.identifier

collected[looking_at_section] = {}

else

looking_at_section = false

        body_blocks[#body_blocks + 1] = block

end

elseif looking_at_section then

      if block.t == 'HorizontalRule' then

looking_at_section = false

else

        local collect = collected[looking_at_section]

        collect[#collect + 1] = block

end

else

      body_blocks[#body_blocks + 1] = block

end

return body_blocks

end

Pandoc = function (doc)

  local meta = doc.meta

-- configure

section_identifiers_list =

    (doc.meta['abstract-section'] or {})['section-identifiers']

  if section_identifiers_list and #section_identifiers_list > 0 then

section_identifiers = {}

    for i, ident in ipairs(section_identifiers_list) do

      section_identifiers[stringify(ident)] = true

end

-- unset config in meta

  doc.meta['abstract-section'] = nil

local blocks = {}

  if PANDOC_VERSION >= {2,17} then

-- Walk all block lists by default

    blocks = doc.blocks:walk{Blocks = abstract_from_blocklist}

  elseif PANDOC_VERSION >= {2,9,2} then

-- Do the same with pandoc versions that don't have walk methods but the

-- `walk_block` function.

    blocks = pandoc.utils.walk_block(

      pandoc.Div(doc.blocks),

      {Blocks = abstract_from_blocklist}

).content

else

-- otherwise, just check the top-level block-list

    blocks = abstract_from_blocklist(doc.blocks)

end

  for metakey in pairs(section_identifiers) do

    metakey = stringify(metakey)

    local abstract = collected[metakey]

    if not meta[metakey] and abstract and #abstract > 0 then

      meta[metakey] = pandoc.MetaBlocks(abstract)

end

  return pandoc.Pandoc(blocks, meta)

end