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| import re | |
| from pprint import pprint | |
| class MessageComposer: | |
| def __init__(self): | |
| pass | |
| def merge(self, messages, suffix=True) -> str: | |
| self.messages = messages | |
| self.merged_str = "" | |
| self.merged_str_list = [] | |
| self.system_prompt = "" | |
| self.system_prompt_list = [] | |
| assistant_messages = [ | |
| message for message in messages if message["role"] not in ["user", "system"] | |
| ] | |
| if len(assistant_messages) <= 0: | |
| for message in messages: | |
| role = message["role"] | |
| content = message["content"] | |
| if role.lower() in ["system"]: | |
| self.system_prompt += content | |
| if role.lower() in ["user"]: | |
| self.merged_str_list.append(content) | |
| else: | |
| for message in messages: | |
| role = message["role"] | |
| content = message["content"] | |
| if role.lower() in ["system"]: | |
| self.system_prompt_list.append(content) | |
| continue | |
| if role.lower() in ["user"]: | |
| role_str = "me" | |
| elif role.lower() in ["assistant", "bot"]: | |
| role_str = "you" | |
| else: | |
| role_str = "unknown" | |
| self.merged_str_list.append(f"`{role_str}`:\n{content}") | |
| if suffix: | |
| self.merged_str_list.append("`you`:") | |
| self.merged_str = "\n\n".join(self.merged_str_list) | |
| self.system_prompt = "\n\n".join(self.system_prompt_list) | |
| return self.merged_str | |
| def split(self, merged_str) -> list: | |
| self.messages = [] | |
| self.merged_str = merged_str | |
| pattern = r"`(?P<role>me|you)`:\n(?P<content>.*)\n+" | |
| matches = re.finditer(pattern, self.merged_str, re.MULTILINE) | |
| matches_list = list(matches) | |
| if len(matches_list) <= 0: | |
| self.messages = [ | |
| { | |
| "role": "user", | |
| "content": self.merged_str, | |
| } | |
| ] | |
| else: | |
| for match in matches_list: | |
| role = match.group("role") | |
| if role == "me": | |
| role_str = "user" | |
| elif role == "you": | |
| role_str = "assistant" | |
| else: | |
| role_str = "unknown" | |
| self.messages.append( | |
| { | |
| "role": role_str, | |
| "content": match.group("content"), | |
| } | |
| ) | |
| return self.messages | |
| if __name__ == "__main__": | |
| composer = MessageComposer() | |
| messages = [ | |
| { | |
| "role": "system", | |
| "content": "You are a LLM developed by OpenAI. Your name is GPT-4.", | |
| }, | |
| {"role": "user", "content": "Hello, who are you?"}, | |
| {"role": "assistant", "content": "I am a bot."}, | |
| {"role": "user", "content": "What is your name?"}, | |
| {"role": "assistant", "content": "My name is Bing."}, | |
| {"role": "user", "content": "Tell me a joke."}, | |
| {"role": "assistant", "content": "What is a robot's favorite type of music?"}, | |
| { | |
| "role": "user", | |
| "content": "How many questions have I asked? Please list them.", | |
| }, | |
| ] | |
| merged_str = composer.merge(messages) | |
| print(merged_str) | |
| pprint(composer.split(merged_str)) | |
| print(composer.merge(composer.split(merged_str))) | |