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56 lines
1.3 KiB
Python
56 lines
1.3 KiB
Python
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#!/usr/bin/env python3
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"""
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Filter program for transforming the Pandoc AST
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"""
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import json
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import re
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import sys
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from build import SHIFT_HEADING
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def text_content(content):
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text = ""
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for block in content:
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if block["t"] == "Space":
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text += " "
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elif block["t"] == "Str":
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text += block["c"]
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return text
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def convert_framgent(*titles):
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titles = list(titles)
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for i, title in enumerate(titles):
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title = re.sub(r"\s", "-", title)
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title = re.sub(r"[^\w-]", "", title)
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titles[i] = title.lower()
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return "/".join(titles)
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def main():
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data = json.load(sys.stdin)
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# Use hierachical link fragments (e.g. #heading/subheading)
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headings = []
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for block in data["blocks"]:
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if block["t"] != "Header":
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continue
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level, (attr_id, attr_class, attr_name), content = block["c"]
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shifted_level = level - SHIFT_HEADING
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title = text_content(content)
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headings = headings[:shifted_level - 1]
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while len(headings) < shifted_level - 1:
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headings.append("")
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headings.append(title)
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full_attr_id = convert_framgent(*headings)
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block["c"] = [level, [full_attr_id, attr_class, attr_name], content]
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json.dump(data, sys.stdout)
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if __name__ == "__main__":
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main()
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