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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 = {}
-- add a comment
table.insert(
front,
pandoc.RawBlock(
"html5",
"<!-- Generated file, you may edit and discard "
.. pandoc.path.filename(PANDOC_STATE.input_files[1])
.. " :) -->"
)
)
local toc = pandoc.structure.table_of_contents(doc)
if doc.meta.toc and toc then
table.insert(front, pandoc.RawBlock("html5", '<nav class="table-of-contents capital">'))
table.insert(front, pandoc.RawBlock("html5", "<ol>"))
-- insert jump to top
table.insert(front, pandoc.Link("back to top", "#top"))
-- create custom toc
toc:walk({
Link = function(e)
table.insert(front, pandoc.RawBlock("html5", "<li>"))
table.insert(front, e)
table.insert(front, pandoc.RawBlock("html5", "</li>"))
end,
})
table.insert(front, pandoc.RawBlock("html5", "</ol>"))
table.insert(front, pandoc.RawBlock("html5", "</nav>"))
end
-- insert date blocks
if doc.meta.date then
table.insert(front, pandoc.RawBlock("html5", '<span class="date">'))
table.insert(front, doc.meta.date)
table.insert(front, pandoc.RawBlock("html5", "</span>"))
end
-- prepend front stuffs
for i = #front, 1, -1 do
table.insert(doc.blocks, 1, front[i])
end
-- return finished ast
return doc
end,
}
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