Ferrari Martino Giordano
36 lines
818 B
Lua
36 lines
818 B
Lua
-- insprired from https://github.com/pandoc/lua-filters/blob/5686d96/diagram-generator/diagram-generator.lua
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local dotPath = os.getenv("DOT") or "dot"
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local filetype = "svg"
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local mimetype = "image/svg+xml"
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local function graphviz(code, filetype)
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return pandoc.pipe(dotPath, {"-T" .. filetype}, code)
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end
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function CodeBlock(block)
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local converters = {
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graphviz = graphviz,
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}
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local img_converter = converters[block.classes[1]]
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if not img_converter then
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return nil
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end
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local success, img = pcall(img_converter, block.text, filetype)
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if not success then
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io.stderr:write(tostring(img))
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io.stderr:write('\n')
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error 'Image conversion failed. Aborting.'
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end
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return pandoc.RawBlock('html', img)
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end
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return {
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{CodeBlock = CodeBlock},
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}
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