103 lines
4.3 KiB
Python
103 lines
4.3 KiB
Python
from datetime import datetime
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import uuid
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import xml.etree.ElementTree as ET
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from typing import Union
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from .command import Command
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from .delete_command import DeleteCommand
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from .stop_command import StopCommand
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from .entry import Entry
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from .background_entry import BackgroundEntry
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from .parse_error_entry import ParseErrorEntry
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from .read_entry import ReadEntry
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from .reasoning_entry import ReasoningEntry
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from .repeat_entry import RepeatEntry
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from .single_entry import SingleEntry
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from .write_entry import WriteEntry
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class ResponseParser:
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"""
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Parses XML responses from the LLM into commands or entries.
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The parser validates the XML structure and converts it into the appropriate
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Command or Entry object based on the root element tag. Invalid input results
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in ParseErrorEntry objects rather than raising exceptions.
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Attributes:
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io_buffer: Buffer to use for IO operations
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"""
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def __init__(self, io_buffer):
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"""
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Initialize parser with IO buffer.
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Args:
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io_buffer: Buffer to use for IO operations
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"""
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self.io_buffer = io_buffer
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def parse(self, xml: str) -> Union[Command, Entry]:
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"""
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Parse XML response into a Command or Entry.
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Args:
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xml: XML string to parse
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Returns:
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Command or Entry based on the XML content
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ParseErrorEntry for any parsing or validation errors
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"""
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entry_id = str(uuid.uuid4())
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timestamp = datetime.now()
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try:
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root = ET.fromstring(xml.strip())
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except ET.ParseError as e:
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return ParseErrorEntry(xml, f"Invalid XML: {str(e)}", entry_id, timestamp)
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try:
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if root.tag == 'delete':
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target_id = root.get('id')
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if not target_id:
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return ParseErrorEntry(xml, "Delete command missing required 'id' attribute", entry_id, timestamp)
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if len(root.attrib) > 1:
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return ParseErrorEntry(xml, "Delete command should only have 'id' attribute", entry_id, timestamp)
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return DeleteCommand(target_id)
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elif root.tag == 'stop':
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return StopCommand()
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elif root.tag == 'background':
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if len(root) != 0 or root.attrib or root.text is None or root.text.strip() == '':
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return ParseErrorEntry(xml, "Background entry requires (only) script content", entry_id, timestamp)
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return BackgroundEntry(root.text, entry_id, timestamp)
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elif root.tag == 'repeat':
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if len(root) != 0 or root.attrib or root.text is None or root.text.strip() == '':
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return ParseErrorEntry(xml, "Repeat entry requires (only) script content", entry_id, timestamp)
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return RepeatEntry(root.text, entry_id, timestamp)
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elif root.tag == 'single':
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if len(root) != 0 or root.attrib or root.text is None or root.text.strip() == '':
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return ParseErrorEntry(xml, "Single entry requires (only) script content", entry_id, timestamp)
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return SingleEntry(root.text, entry_id, timestamp)
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elif root.tag == 'reasoning':
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if len(root) != 0 or root.attrib or root.text is None or root.text.strip() == '':
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return ParseErrorEntry(xml, "Reasoning entry requires (only) text content", entry_id, timestamp)
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return ReasoningEntry(root.text, entry_id, timestamp)
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elif root.tag == 'read_stdin':
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return ReadEntry(self.io_buffer, entry_id, timestamp)
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elif root.tag == 'write_stdout':
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if len(root) != 0 or root.attrib or root.text is None or root.text.strip() == '':
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return ParseErrorEntry(xml, "Write stdout entry requires (only) text content", entry_id, timestamp)
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return WriteEntry(root.text, self.io_buffer, entry_id, timestamp)
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else:
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return ParseErrorEntry(xml, f"Unknown root element: {root.tag}", entry_id, timestamp)
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except Exception as e:
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return ParseErrorEntry(xml, f"Error parsing response: {str(e)}", entry_id, timestamp) |