33 lines
1.8 KiB
Python
33 lines
1.8 KiB
Python
"""Ground explicit discussion-group bounds only from direct user messages."""
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from __future__ import annotations
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import re
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def requested_mode(messages: object) -> str | None:
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mode = None
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if not isinstance(messages, list):
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return mode
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for message in messages:
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if not isinstance(message, dict) or message.get("role") != "user" or not isinstance(message.get("text"), str):
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continue
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text = re.sub(r"```[\s\S]*?```|https?://\S+", "", message["text"])
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text = re.sub(r'“[^”]*”|‘[^’]*’|「[^」]*」|『[^』]*』|"[^"\n]*"|`[^`\n]*`', "", text)
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current = None
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changed = False
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for clause in re.split(r"[，,。；;！？!?\n]", text):
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if clause.lstrip().startswith(">") or re.search(r"例如|比如|示例|(?:网页|页面|原文)(?:上)?(?:说|写|显示)|引用", clause):
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continue
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if re.search(r"不限(?:制)?(?:讨论组|评论组)|不限制(?:讨论组|评论组)(?:数|数量|范围)?|(?:不再只|不要只|改为全部|改为所有)[^。；\n]{0,18}(?:讨论|评论)", clause):
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current, changed = None, True
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continue
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first = re.search(r"(?:只|仅|限定)[^。；;\n]{0,18}(?:(?:第一|第1|首)(?:组|个)(?:讨论|评论)|(?:讨论|评论)(?:区)?(?:的)?(?:第一|第1)组)", clause)
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one = re.search(r"(?:只|仅|限定)[^。；;\n]{0,16}(?:(?:一|1)(?:个|组)(?:讨论|评论)(?:组)?|(?:讨论|评论)组(?:只|仅)?(?:一|1)个)", clause)
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found = first or one
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if found and not re.search(r"(?:不要|不用|别|不必|不需要|不是|不)[^，,]{0,4}$", clause[:found.start()]):
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current = "first" if first else current or "one"
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changed = True
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if changed:
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mode = current
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return mode
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