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31 lines
829 B
Python
31 lines
829 B
Python
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from functools import lru_cache
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from bs4 import BeautifulSoup
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from pygments import highlight as phighlight
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from pygments.formatters import HtmlFormatter
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from pygments.lexers import guess_lexer
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from config import THEME_STYLE
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from config import ThemeStyle
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_FORMATTER = HtmlFormatter(
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style="default" if THEME_STYLE == ThemeStyle.LIGHT else "vim"
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)
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HIGHLIGHT_CSS = _FORMATTER.get_style_defs()
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@lru_cache(512)
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def highlight(html: str) -> str:
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soup = BeautifulSoup(html, "html5lib")
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for code in soup.find_all("code"):
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if not code.parent.name == "pre":
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continue
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lexer = guess_lexer(code.text)
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tag = BeautifulSoup(phighlight(code.text, lexer, _FORMATTER)).body.next
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pre = code.parent
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pre.replaceWith(tag)
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out = soup.body
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out.name = "div"
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return str(out)
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