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34 lines
1.1 KiB
34 lines
1.1 KiB
--[[
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Converts Link AST nodes with empty label to DocBook xref elements.
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This is a temporary script to be able use cross-references conveniently
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using syntax taken from MyST, while we still use docbook-xsl
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for generating the documentation.
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Reference: https://myst-parser.readthedocs.io/en/latest/using/syntax.html#targets-and-cross-referencing
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]]
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local function starts_with(start, str)
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return str:sub(1, #start) == start
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end
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local function escape_xml_arg(arg)
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amps = arg:gsub('&', '&')
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amps_quotes = amps:gsub('"', '"')
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amps_quotes_lt = amps_quotes:gsub('<', '<')
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return amps_quotes_lt
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end
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function Link(elem)
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has_no_content = #elem.content == 0
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targets_anchor = starts_with('#', elem.target)
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has_no_attributes = elem.title == '' and elem.identifier == '' and #elem.classes == 0 and #elem.attributes == 0
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if has_no_content and targets_anchor and has_no_attributes then
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-- xref expects idref without the pound-sign
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target_without_hash = elem.target:sub(2, #elem.target)
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return pandoc.RawInline('docbook', '<xref linkend="' .. escape_xml_arg(target_without_hash) .. '" />')
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end
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end
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