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33 lines
930 B
Python
33 lines
930 B
Python
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#! /usr/bin/env nix-shell
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#! nix-shell -I nixpkgs=channel:nixos-unstable -i python3 -p python3 -p python3.pkgs.lxml
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"""
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Pandoc will try to resolve xrefs and replace them with regular links.
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let’s replace them with links with empty labels which MyST
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and our pandoc filters recognize as cross-references.
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"""
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import lxml.etree as ET
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import sys
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XLINK_NS = "http://www.w3.org/1999/xlink"
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ns = {
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"db": "http://docbook.org/ns/docbook",
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}
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if __name__ == '__main__':
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assert len(sys.argv) >= 3, "usage: replace-xrefs-by-empty-links.py <input> <output>"
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tree = ET.parse(sys.argv[1])
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for xref in tree.findall(".//db:xref", ns):
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text = ET.tostring(xref, encoding=str)
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parent = xref.getparent()
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link = parent.makeelement('link')
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target_name = xref.get("linkend")
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link.set(f"{{{XLINK_NS}}}href", f"#{target_name}")
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parent.replace(xref, link)
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tree.write(sys.argv[2])
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