[Template] add unified template.

paddlenlp/datasets/formatter.py

@@ -0,0 +1,195 @@
+# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import re
+from abc import ABC, abstractmethod
+from dataclasses import dataclass, field
+from enum import Enum, unique
+from typing import Optional, Union
+
+from typing_extensions import override
+
+SLOTS = list[Union[str, set[str], dict[str, str]]]
+
+
+KG_RES_MARKUPS = [
+    "[<kg-res>]",
+    "[</kg-res>]",
+    "[<kg-yes>]",
+    "[</kg-yes>]",
+    "[<kg-cs-yes>]",
+    "[</kg-cs-yes>]",
+    "[<kg-cs-no>]",
+    "[</kg-cs-no>]",
+]
+
+
+@unique
+class Role(str, Enum):
+    USER = "user"
+    ASSISTANT = "assistant"
+    SYSTEM = "system"
+
+
+def extract_knowledge(text):
+    """Extracts structured knowledge from text markup.
+
+    Args:
+        text (str): Input text containing markup.
+
+    Returns:
+        str: Processed knowledge string.
+
+    Raises:
+        ValueError: If no valid knowledge pattern found.
+    """
+
+    if any(markup in text for markup in KG_RES_MARKUPS):
+        for markup in KG_RES_MARKUPS + ["[<image>]", "[</image>]"]:
+            text = text.replace(markup, "")
+        text = f"知识库：{text.strip()}\n根据所提供的知识库信息，回答问题并补全对话："
+        return text
+
+    res = re.findall(
+        r"\[<search-res>\](.*?)\[<\/search-res>\]",
+        text,
+        re.DOTALL | re.MULTILINE,
+    )
+    if len(res) > 0:
+        text = res[0]
+        text = f"{text.strip()}\n根据以上参考文章回答问题，补全对话"
+        return text
+
+    res = re.findall(
+        r"\[<prompt-res>\](.*?)\[<\/prompt-res>\]",
+        text,
+        re.DOTALL | re.MULTILINE,
+    )
+    if len(res) > 0:
+        text = res[0]
+        text = text.strip()
+        return text
+
+    res = re.findall(
+        r"\[<compute-res>\](.*?)\[<\/compute-res>\]",
+        text,
+        re.DOTALL | re.MULTILINE,
+    )
+    if len(res) > 0:
+        text = res[0]
+        text = f"参考文章1：{text.strip()}\n根据以上参考文章回答问题，补全对话"
+        return text
+
+    res = re.findall(
+        r"\[<citation-ref>\](.*?)\[<\/citation-ref>\]",
+        text,
+        re.DOTALL | re.MULTILINE,
+    )
+    if len(res) > 0:
+        text = res[0]
+        text = (
+            "请参考搜索结果回答下面问题并使用引用标记来标注回答内容参考的搜索结果序号，"
+            "例如^[1]^ (引用单个搜索结果）,^[1][2]^（引用多个搜索结果），"
+            "其中方括号中的数字是搜索结果序号。引用标记只能出现在句尾标点符号前。\n"
+            "以下是搜索结果（每行开头[1]、[2]、...是搜索结果序号），"
+            f"可以对答案中的核心部分进行markdown加粗（**加粗内容**）：\n{text.strip()}\n"
+            "根据以上搜索结果回答问题并标注引用，补全对话"
+        )
+        return text
+
+    res = re.findall(
+        r"\[<retrieve-ref>\](.*?)\[<\/retrieve-ref>\]",
+        text,
+        re.DOTALL | re.MULTILINE,
+    )
+    if len(res) > 0:
+        text = res[0]
+        text = (
+            "请你扮演一个专家，参考搜索结果中正确、可信、高质量的信息回答问题，并注明答案中引用的搜索结果，"
+            "格式为^[2]^表示引用了第2条搜索结果，^[1][3]^表示引用第1和第3条搜索结果。"
+            "每条搜索结果包含若干相关内容片段。同时你需要遵循以下原则回答问题：\n"
+            "1. 严格遵循搜索结果作答，可以承认不知道答案，并尝试给出一些搜索结果中的相关背景信息。\n"
+            "2. 如果搜索结果存在多种可能的答案，要罗列出每种情况。\n"
+            "3. 如果问题涉及金融、医疗、法律等存在风险的领域，请在结尾提醒用户注意并进行免责说明。\n"
+            f"搜索结果：\n{text.strip()}\n\n现在，请根据上面的搜索结果回答问题并标注引用，补全对话"
+        )
+        return text
+
+    raise ValueError(f"Cannot extract knowledge from `{text}`")
+
+
+@dataclass
+class Formatter(ABC):
+    slots: SLOTS = field(default_factory=list)
+    tool_format: Optional[str] = None
+
+    @abstractmethod
+    def apply(self, **kwargs) -> SLOTS:
+        r"""Forms a list of slots according to the inputs to encode."""
+        ...
+
+
+@dataclass
+class EmptyFormatter(Formatter):
+    def __post_init__(self):
+        has_placeholder = False
+        for slot in filter(lambda s: isinstance(s, str), self.slots):
+            if re.search(r"\{\{[a-zA-Z_][a-zA-Z0-9_]*\}\}", slot):
+                has_placeholder = True
+
+        if has_placeholder:
+            raise ValueError("Empty formatter should not contain any placeholder.")
+
+    @override
+    def apply(self, **kwargs) -> SLOTS:
+        return self.slots
+
+
+@dataclass
+class StringFormatter(Formatter):
+    def __post_init__(self):
+        has_placeholder = False
+        for slot in filter(lambda s: isinstance(s, str), self.slots):
+            if re.search(r"\{\{[a-zA-Z_][a-zA-Z0-9_]*\}\}", slot):
+                has_placeholder = True
+
+        if not has_placeholder:
+            raise ValueError("A placeholder is required in the string formatter.")
+
+    @override
+    def apply(self, **kwargs) -> SLOTS:
+        elements = []
+        for slot in self.slots:
+            if isinstance(slot, str):
+                for name, value in kwargs.items():
+                    if not isinstance(value, str):
+                        raise RuntimeError(f"Expected a string, got {name} : s{value}")
+
+                    slot = slot.replace("{{" + name + "}}", value, 1)
+                elements.append(slot)
+            elif isinstance(slot, (dict, set)):
+                elements.append(slot)
+            else:
+                raise RuntimeError(f"Input must be string, set[str] or dict[str, str], got {type(slot)}.")
+
+        return elements
+
+
+@dataclass
+class KnowledgeFormatter(StringFormatter):
+    @override
+    def apply(self, **kwargs) -> SLOTS:
+        content: str = extract_knowledge(kwargs.pop("content")) + "\n"
+        idx: int = kwargs.pop("idx")
+        return super().apply(content=content, idx=idx)