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---@diagnostic disable: undefined-global
-- see https://pandoc.org/lua-filters.html
return {
Link = function(link)
-- set target="_blank" for outgoing links (open them in new tab)
if string.match(link.target, "gzr.im") == nil then
table.insert(link.attributes, { "target", "_blank" })
end
return link
end,
Pandoc = function(doc)
local front = pandoc.List()
local doc_filename = pandoc.path.filename(PANDOC_STATE.input_files[1])
-- add a comment
front:extend({
pandoc.RawBlock("html5", "<!-- Generated file, you may edit and discard " .. doc_filename .. " :) -->"),
})
local toc = pandoc.structure.table_of_contents(doc)
if doc.meta.toc and toc then
front:extend({
pandoc.RawBlock("html5", '<nav class="table-of-contents capital">'),
pandoc.RawBlock("html5", "<ol>"),
-- insert jump to top
pandoc.RawBlock("html5", "<li>"),
pandoc.Link("back to top", "#top"),
pandoc.RawBlock("html5", "</li>"),
})
-- create custom toc
toc:walk({
Link = function(e)
-- check if the section title matches the doc title and dont
-- add it to the TOC, it's probably the h1 heading
if string.find(doc_filename, pandoc.utils.stringify(e.content) .. ".md", 1, true) == 1 then
return
end
front:extend({
pandoc.RawBlock("html5", "<li>"),
e,
pandoc.RawBlock("html5", "</li>"),
})
end,
})
front:extend({
pandoc.RawBlock("html5", "</ol>"),
pandoc.RawBlock("html5", "</nav>"),
})
end
-- insert date blocks
if doc.meta.date then
front:extend({
pandoc.RawBlock("html5", '<span class="date">'),
doc.meta.date,
pandoc.RawBlock("html5", "</span>"),
})
end
-- prepend front stuffs
front:extend(doc.blocks)
doc.blocks = front
-- return finished ast
return doc
end,
}
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