Igor20264
43 lines
909 B
Python
43 lines
909 B
Python
"""Escape helpers for LaTeX output."""
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from __future__ import annotations
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import re
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_SPECIAL = {
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"\\": r"\textbackslash{}",
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"{": r"\{",
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"}": r"\}",
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"#": r"\#",
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"$": r"\$",
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"%": r"\%",
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"&": r"\&",
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"_": r"\_",
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"~": r"\textasciitilde{}",
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"^": r"\textasciicircum{}",
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}
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def escape_text(s: str) -> str:
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if not s:
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return ""
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out = []
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for ch in s:
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out.append(_SPECIAL.get(ch, ch))
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return "".join(out)
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def escape_verbatim_for_listing(s: str) -> str:
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"""lstlisting body — avoid ending the environment accidentally."""
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return s.replace("\\end{lstlisting}", "\\end\\{lstlisting}")
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_LABEL_RE = re.compile(r"[^\w\-]+", re.UNICODE)
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def latex_label(name: str | None, prefix: str = "obj") -> str:
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if not name:
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return prefix
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cleaned = _LABEL_RE.sub("-", name.strip()).strip("-")
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return f"{prefix}:{cleaned or 'x'}"
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