OpenHands/agenthub/codeact_swe_agent/response_parser.py

from agenthub.codeact_swe_agent.action_parser import (
    CodeActSWEActionParserCmdRun,
    CodeActSWEActionParserFinish,
    CodeActSWEActionParserIPythonRunCell,
    CodeActSWEActionParserMessage,
)
from opendevin.controller.action_parser import ResponseParser
from opendevin.events.action import Action


class CodeActSWEResponseParser(ResponseParser):
    """
    Parser action:
        - CmdRunAction(command) - bash command to run
        - IPythonRunCellAction(code) - IPython code to run
        - MessageAction(content) - Message action to run (e.g. ask for clarification)
        - AgentFinishAction() - end the interaction
    """

    def __init__(
        self,
    ):
        # Need pay attention to the item order in self.action_parsers
        self.action_parsers = [
            CodeActSWEActionParserFinish(),
            CodeActSWEActionParserCmdRun(),
            CodeActSWEActionParserIPythonRunCell(),
        ]
        self.default_parser = CodeActSWEActionParserMessage()

    def parse(self, response: str) -> Action:
        action_str = self.parse_response(response)
        return self.parse_action(action_str)

    def parse_response(self, response) -> str:
        action = response.choices[0].message.content
        for lang in ['bash', 'ipython']:
            if f'<execute_{lang}>' in action and f'</execute_{lang}>' not in action:
                action += f'</execute_{lang}>'
        return action

    def parse_action(self, action_str: str) -> Action:
        for action_parser in self.action_parsers:
            if action_parser.check_condition(action_str):
                return action_parser.parse(action_str)
        return self.default_parser.parse(action_str)