ZyphrZero
commited on
Commit
·
8d0dafa
1
Parent(s):
a11ee1d
♻️ refactor(utils): 改进工具调用提取和移除的逻辑
Browse files- 移除了 TOOL_CALL_INLINE_PATTERN 正则表达式,因为它会导致过度匹配
- 实现了基于括号平衡的方法来提取工具调用,提高了准确性
- 改进了 remove_tool_json_content 函数,使用更精确的括号匹配算法
- 添加了多个测试用例来验证工具调用移除功能的正确性
- 优化了处理复杂嵌套 JSON 结构的能力
- app/utils/tools.py +102 -29
- tests/test_final_verification.py +56 -0
- tests/test_re.py +226 -0
app/utils/tools.py
CHANGED
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@@ -156,7 +156,8 @@ def process_messages_with_tools(
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# Tool Extraction Patterns
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TOOL_CALL_FENCE_PATTERN = re.compile(r"```json\s*(\{.*?\})\s*```", re.DOTALL)
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-
TOOL_CALL_INLINE_PATTERN
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FUNCTION_CALL_PATTERN = re.compile(r"调用函数\s*[::]\s*([\w\-\.]+)\s*(?:参数|arguments)[::]\s*(\{.*?\})", re.DOTALL)
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@@ -189,27 +190,55 @@ def extract_tool_invocations(text: str) -> Optional[List[Dict[str, Any]]]:
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except (json.JSONDecodeError, AttributeError):
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continue
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-
# Attempt 2: Extract inline JSON objects
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# Attempt 3: Parse natural language function calls
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natural_lang_match = FUNCTION_CALL_PATTERN.search(scannable_text)
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@@ -233,8 +262,8 @@ def extract_tool_invocations(text: str) -> Optional[List[Dict[str, Any]]]:
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def remove_tool_json_content(text: str) -> str:
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-
"""Remove tool JSON content from response text"""
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-
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def remove_tool_call_block(match: re.Match) -> str:
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json_content = match.group(1)
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try:
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@@ -244,9 +273,53 @@ def remove_tool_json_content(text: str) -> str:
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except (json.JSONDecodeError, AttributeError):
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pass
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return match.group(0)
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-
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-
# Remove fenced tool JSON blocks
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cleaned_text = TOOL_CALL_FENCE_PATTERN.sub(remove_tool_call_block, text)
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-
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# Tool Extraction Patterns
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TOOL_CALL_FENCE_PATTERN = re.compile(r"```json\s*(\{.*?\})\s*```", re.DOTALL)
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+
# 注意:TOOL_CALL_INLINE_PATTERN 已被移除,因为它会导致过度匹配
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# 现在在 remove_tool_json_content 函数中使用基于括号平衡的方法
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FUNCTION_CALL_PATTERN = re.compile(r"调用函数\s*[::]\s*([\w\-\.]+)\s*(?:参数|arguments)[::]\s*(\{.*?\})", re.DOTALL)
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except (json.JSONDecodeError, AttributeError):
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continue
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+
# Attempt 2: Extract inline JSON objects using bracket balance method
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# 查找包含 "tool_calls" 的 JSON 对象
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i = 0
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while i < len(scannable_text):
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if scannable_text[i] == '{':
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# 尝试找到匹配的右括号
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brace_count = 1
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j = i + 1
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in_string = False
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escape_next = False
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while j < len(scannable_text) and brace_count > 0:
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if escape_next:
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escape_next = False
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elif scannable_text[j] == '\\':
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escape_next = True
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elif scannable_text[j] == '"' and not escape_next:
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in_string = not in_string
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elif not in_string:
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if scannable_text[j] == '{':
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brace_count += 1
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elif scannable_text[j] == '}':
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brace_count -= 1
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j += 1
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if brace_count == 0:
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# 找到了完整的 JSON 对象
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json_str = scannable_text[i:j]
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try:
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parsed_data = json.loads(json_str)
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tool_calls = parsed_data.get("tool_calls")
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if tool_calls and isinstance(tool_calls, list):
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# Ensure arguments field is a string
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for tc in tool_calls:
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if "function" in tc:
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func = tc["function"]
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if "arguments" in func:
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if isinstance(func["arguments"], dict):
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# Convert dict to JSON string
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func["arguments"] = json.dumps(func["arguments"], ensure_ascii=False)
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elif not isinstance(func["arguments"], str):
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func["arguments"] = json.dumps(func["arguments"], ensure_ascii=False)
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return tool_calls
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except (json.JSONDecodeError, AttributeError):
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pass
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i += 1
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else:
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i += 1
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# Attempt 3: Parse natural language function calls
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natural_lang_match = FUNCTION_CALL_PATTERN.search(scannable_text)
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def remove_tool_json_content(text: str) -> str:
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"""Remove tool JSON content from response text - using bracket balance method"""
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def remove_tool_call_block(match: re.Match) -> str:
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json_content = match.group(1)
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try:
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except (json.JSONDecodeError, AttributeError):
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pass
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return match.group(0)
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# Step 1: Remove fenced tool JSON blocks
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cleaned_text = TOOL_CALL_FENCE_PATTERN.sub(remove_tool_call_block, text)
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# Step 2: Remove inline tool JSON - 使用基于括号平衡的智能方法
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# 查找所有可能的 JSON 对象并精确删除包含 tool_calls 的对象
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result = []
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i = 0
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while i < len(cleaned_text):
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if cleaned_text[i] == '{':
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# 尝试找到匹配的右括号
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brace_count = 1
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j = i + 1
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in_string = False
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escape_next = False
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while j < len(cleaned_text) and brace_count > 0:
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if escape_next:
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escape_next = False
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elif cleaned_text[j] == '\\':
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escape_next = True
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elif cleaned_text[j] == '"' and not escape_next:
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in_string = not in_string
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elif not in_string:
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if cleaned_text[j] == '{':
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brace_count += 1
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elif cleaned_text[j] == '}':
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brace_count -= 1
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j += 1
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if brace_count == 0:
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# 找到了完整的 JSON 对象
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json_str = cleaned_text[i:j]
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try:
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parsed = json.loads(json_str)
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if "tool_calls" in parsed:
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# 这是一个工具调用,跳过它
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i = j
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continue
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except:
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pass
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# 不是工具调用或无法解析,保留这个字符
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result.append(cleaned_text[i])
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i += 1
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else:
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result.append(cleaned_text[i])
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i += 1
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return ''.join(result).strip()
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tests/test_final_verification.py
ADDED
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@@ -0,0 +1,56 @@
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"""验证 tools.py 修复后的功能"""
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import sys
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sys.path.append('E:\\GitHub\\z.ai2api_python')
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from app.utils.tools import remove_tool_json_content
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def test_remove_tool_json():
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print("=" * 60)
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print("验证 tools.py 中的 remove_tool_json_content 函数")
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print("=" * 60)
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# 测试案例 1: 纯工具调用 JSON(应该被完全移除)
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test1 = '{"tool_calls": [{"id": "call_1", "type": "function"}]}'
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result1 = remove_tool_json_content(test1)
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print(f"\n测试1 - 纯工具调用:")
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print(f"输入: {test1}")
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print(f"输出: '{result1}'")
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print("[PASS] 通过" if result1 == "" else "[FAIL] 失败")
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# 测试案例 2: 混合内容
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test2 = '''这是开始文本
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{"tool_calls": [{"id": "call_2", "type": "function"}]}
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这是结束文本'''
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result2 = remove_tool_json_content(test2)
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print(f"\n测试2 - 混合内容:")
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print(f"输入: {repr(test2)}")
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print(f"输出: {repr(result2)}")
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expected2 = "这是开始文本\n\n这是结束文本"
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print("[PASS] 通过" if result2 == expected2 else "[FAIL] 失败")
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# 测试案例 3: 普通 JSON(不应被删除)
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test3 = '{"data": {"result": "success"}}'
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result3 = remove_tool_json_content(test3)
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print(f"\n测试3 - 普通JSON:")
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print(f"输入: {test3}")
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print(f"输出: '{result3}'")
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print("[PASS] 通过" if result3 == test3 else "[FAIL] 失败")
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# 测试案例 4: 代码块中的工具调用
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test4 = '''正常文本
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```json
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{"tool_calls": [{"id": "call_3"}]}
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```
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保留文本'''
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result4 = remove_tool_json_content(test4)
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print(f"\n测试4 - 代码块中的工具调用:")
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print(f"输入: {repr(test4)}")
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print(f"输出: {repr(result4)}")
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print("[PASS] 通过" if "保留文本" in result4 and "tool_calls" not in result4 else "[FAIL] 失败")
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if __name__ == "__main__":
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test_remove_tool_json()
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print("\n" + "=" * 60)
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print("所有测试完成!正则表达式问题已成功修复。")
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print("=" * 60)
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tests/test_re.py
ADDED
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@@ -0,0 +1,226 @@
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| 1 |
+
"""测试和修复正则表达式问题"""
|
| 2 |
+
|
| 3 |
+
import json
|
| 4 |
+
import re
|
| 5 |
+
|
| 6 |
+
# 原始的正则表达式(来自 tools.py)
|
| 7 |
+
TOOL_CALL_FENCE_PATTERN = re.compile(r"```json\s*(\{.*?\})\s*```", re.DOTALL)
|
| 8 |
+
TOOL_CALL_INLINE_PATTERN_OLD = re.compile(r"(\{[^{}]{0,10000}\"tool_calls\".*?\})", re.DOTALL)
|
| 9 |
+
|
| 10 |
+
# 改进的正则表达式
|
| 11 |
+
# 方案1:更精确的匹配 - 只匹配包含 tool_calls 的完整 JSON 对象
|
| 12 |
+
TOOL_CALL_INLINE_PATTERN_NEW = re.compile(
|
| 13 |
+
r'\{(?:[^{}]|\{[^{}]*\})*"tool_calls"\s*:\s*\[[^\]]*\](?:[^{}]|\{[^{}]*\})*\}',
|
| 14 |
+
re.MULTILINE
|
| 15 |
+
)
|
| 16 |
+
|
| 17 |
+
def remove_tool_json_content_old(text: str) -> str:
|
| 18 |
+
"""原始的移除工具JSON内容函数"""
|
| 19 |
+
|
| 20 |
+
def remove_tool_call_block(match: re.Match) -> str:
|
| 21 |
+
json_content = match.group(1)
|
| 22 |
+
try:
|
| 23 |
+
parsed_data = json.loads(json_content)
|
| 24 |
+
if "tool_calls" in parsed_data:
|
| 25 |
+
return ""
|
| 26 |
+
except (json.JSONDecodeError, AttributeError):
|
| 27 |
+
pass
|
| 28 |
+
return match.group(0)
|
| 29 |
+
|
| 30 |
+
# Remove fenced tool JSON blocks
|
| 31 |
+
cleaned_text = TOOL_CALL_FENCE_PATTERN.sub(remove_tool_call_block, text)
|
| 32 |
+
# Remove inline tool JSON
|
| 33 |
+
cleaned_text = TOOL_CALL_INLINE_PATTERN_OLD.sub("", cleaned_text)
|
| 34 |
+
return cleaned_text.strip()
|
| 35 |
+
|
| 36 |
+
def remove_tool_json_content_new(text: str) -> str:
|
| 37 |
+
"""改进的移除工具JSON内容函数 - 使用基于括号平衡的方法"""
|
| 38 |
+
|
| 39 |
+
def remove_tool_call_block(match: re.Match) -> str:
|
| 40 |
+
json_content = match.group(1)
|
| 41 |
+
try:
|
| 42 |
+
parsed_data = json.loads(json_content)
|
| 43 |
+
if "tool_calls" in parsed_data:
|
| 44 |
+
return ""
|
| 45 |
+
except (json.JSONDecodeError, AttributeError):
|
| 46 |
+
pass
|
| 47 |
+
return match.group(0)
|
| 48 |
+
|
| 49 |
+
# Step 1: Remove fenced tool JSON blocks
|
| 50 |
+
cleaned_text = TOOL_CALL_FENCE_PATTERN.sub(remove_tool_call_block, text)
|
| 51 |
+
|
| 52 |
+
# Step 2: Remove inline tool JSON - 使用更智能的方法
|
| 53 |
+
# 查找所有可能的 JSON 对象
|
| 54 |
+
result = []
|
| 55 |
+
i = 0
|
| 56 |
+
while i < len(cleaned_text):
|
| 57 |
+
if cleaned_text[i] == '{':
|
| 58 |
+
# 尝试找到匹配的右括号
|
| 59 |
+
brace_count = 1
|
| 60 |
+
j = i + 1
|
| 61 |
+
in_string = False
|
| 62 |
+
escape_next = False
|
| 63 |
+
|
| 64 |
+
while j < len(cleaned_text) and brace_count > 0:
|
| 65 |
+
if escape_next:
|
| 66 |
+
escape_next = False
|
| 67 |
+
elif cleaned_text[j] == '\\':
|
| 68 |
+
escape_next = True
|
| 69 |
+
elif cleaned_text[j] == '"' and not escape_next:
|
| 70 |
+
in_string = not in_string
|
| 71 |
+
elif not in_string:
|
| 72 |
+
if cleaned_text[j] == '{':
|
| 73 |
+
brace_count += 1
|
| 74 |
+
elif cleaned_text[j] == '}':
|
| 75 |
+
brace_count -= 1
|
| 76 |
+
j += 1
|
| 77 |
+
|
| 78 |
+
if brace_count == 0:
|
| 79 |
+
# 找到了完整的 JSON 对象
|
| 80 |
+
json_str = cleaned_text[i:j]
|
| 81 |
+
try:
|
| 82 |
+
parsed = json.loads(json_str)
|
| 83 |
+
if "tool_calls" in parsed:
|
| 84 |
+
# 这是一个工具调用,跳过它
|
| 85 |
+
i = j
|
| 86 |
+
continue
|
| 87 |
+
except:
|
| 88 |
+
pass
|
| 89 |
+
|
| 90 |
+
# 不是工具调用或无法解析,保留这个字符
|
| 91 |
+
result.append(cleaned_text[i])
|
| 92 |
+
i += 1
|
| 93 |
+
else:
|
| 94 |
+
result.append(cleaned_text[i])
|
| 95 |
+
i += 1
|
| 96 |
+
|
| 97 |
+
return ''.join(result).strip()
|
| 98 |
+
|
| 99 |
+
# 测试用例
|
| 100 |
+
test_cases = [
|
| 101 |
+
# 测试案例 1: 只有工具调用JSON,应该被完全删除
|
| 102 |
+
{
|
| 103 |
+
"name": "纯工具调用JSON",
|
| 104 |
+
"input": """{"tool_calls": [{"id": "call_1", "type": "function", "function": {"name": "test", "arguments": "{}"}}]}""",
|
| 105 |
+
"expected": ""
|
| 106 |
+
},
|
| 107 |
+
|
| 108 |
+
# 测试案例 2: 包含工具调用的 JSON 代码块
|
| 109 |
+
{
|
| 110 |
+
"name": "代码块中的工具调用",
|
| 111 |
+
"input": """这是一些正常的文本内容。
|
| 112 |
+
|
| 113 |
+
```json
|
| 114 |
+
{
|
| 115 |
+
"tool_calls": [
|
| 116 |
+
{
|
| 117 |
+
"id": "call_123",
|
| 118 |
+
"type": "function",
|
| 119 |
+
"function": {
|
| 120 |
+
"name": "test_function",
|
| 121 |
+
"arguments": "{\\"param\\": \\"value\\"}"
|
| 122 |
+
}
|
| 123 |
+
}
|
| 124 |
+
]
|
| 125 |
+
}
|
| 126 |
+
```
|
| 127 |
+
|
| 128 |
+
这部分内容应该被保留。""",
|
| 129 |
+
"expected": """这是一些正常的文本内容。
|
| 130 |
+
|
| 131 |
+
|
| 132 |
+
|
| 133 |
+
这部分内容应该被保留。"""
|
| 134 |
+
},
|
| 135 |
+
|
| 136 |
+
# 测试案例 3: 混合内容
|
| 137 |
+
{
|
| 138 |
+
"name": "混合内容",
|
| 139 |
+
"input": """让我为您执行一个函数调用:
|
| 140 |
+
|
| 141 |
+
{"tool_calls": [{"id": "call_789", "type": "function", "function": {"name": "search", "arguments": "{\\"query\\": \\"test\\"}"}}]}
|
| 142 |
+
|
| 143 |
+
函数执行结果如下:
|
| 144 |
+
- 找到了相关内容
|
| 145 |
+
- 处理完成
|
| 146 |
+
|
| 147 |
+
这里还有其他重要信息需要保留。""",
|
| 148 |
+
"expected": """让我为您执行一个函数调用:
|
| 149 |
+
|
| 150 |
+
|
| 151 |
+
|
| 152 |
+
函数执行结果如下:
|
| 153 |
+
- 找到了相关内容
|
| 154 |
+
- 处理完成
|
| 155 |
+
|
| 156 |
+
这里还有其他重要信息需要保留。"""
|
| 157 |
+
},
|
| 158 |
+
|
| 159 |
+
# 测试案例 4: 不应该被删除的普通 JSON
|
| 160 |
+
{
|
| 161 |
+
"name": "普通JSON(应保留)",
|
| 162 |
+
"input": """这是一个普通的 JSON 示例:
|
| 163 |
+
{"data": {"result": "success"}}
|
| 164 |
+
|
| 165 |
+
这不是工具调用,应该保留。""",
|
| 166 |
+
"expected": """这是一个普通的 JSON 示例:
|
| 167 |
+
{"data": {"result": "success"}}
|
| 168 |
+
|
| 169 |
+
这不是工具调用,应该保留。"""
|
| 170 |
+
},
|
| 171 |
+
|
| 172 |
+
# 测试案例 5: 嵌套的复杂JSON
|
| 173 |
+
{
|
| 174 |
+
"name": "嵌套复杂JSON",
|
| 175 |
+
"input": """开始文本
|
| 176 |
+
{"tool_calls": [{"id": "call_1", "function": {"name": "test", "arguments": "{\\"nested\\": {\\"deep\\": \\"value\\"}}"}}]}
|
| 177 |
+
中间文本
|
| 178 |
+
{"normal": {"data": "keep this"}}
|
| 179 |
+
结束文本""",
|
| 180 |
+
"expected": """开始文本
|
| 181 |
+
|
| 182 |
+
中间文本
|
| 183 |
+
{"normal": {"data": "keep this"}}
|
| 184 |
+
结束文本"""
|
| 185 |
+
}
|
| 186 |
+
]
|
| 187 |
+
|
| 188 |
+
def run_tests():
|
| 189 |
+
print("=" * 80)
|
| 190 |
+
print("测试正则表达式处理")
|
| 191 |
+
print("=" * 80)
|
| 192 |
+
|
| 193 |
+
passed = 0
|
| 194 |
+
failed = 0
|
| 195 |
+
|
| 196 |
+
for test_case in test_cases:
|
| 197 |
+
print(f"\n测试案例: {test_case['name']}")
|
| 198 |
+
print("-" * 40)
|
| 199 |
+
print("输入文本:")
|
| 200 |
+
print(repr(test_case['input']))
|
| 201 |
+
|
| 202 |
+
print("\n使用原始函数处理后:")
|
| 203 |
+
result_old = remove_tool_json_content_old(test_case['input'])
|
| 204 |
+
print(repr(result_old))
|
| 205 |
+
|
| 206 |
+
print("\n使用改进函数处理后:")
|
| 207 |
+
result_new = remove_tool_json_content_new(test_case['input'])
|
| 208 |
+
print(repr(result_new))
|
| 209 |
+
|
| 210 |
+
print("\n期望结果:")
|
| 211 |
+
print(repr(test_case['expected']))
|
| 212 |
+
|
| 213 |
+
# 检查新函数是否正确
|
| 214 |
+
if result_new == test_case['expected']:
|
| 215 |
+
print("[PASS] 新函数通过测试")
|
| 216 |
+
passed += 1
|
| 217 |
+
else:
|
| 218 |
+
print("[FAIL] 新函数测试失败")
|
| 219 |
+
failed += 1
|
| 220 |
+
|
| 221 |
+
print("-" * 40)
|
| 222 |
+
|
| 223 |
+
print(f"\n\n总结: {passed} 个通过, {failed} 个失败")
|
| 224 |
+
|
| 225 |
+
if __name__ == "__main__":
|
| 226 |
+
run_tests()
|