Method _advance_tool_call_state

examples/server/server.py:6003–6315

(
        self,
        item_state: Dict[str, Any],
        text: str,
        item_plan: Dict[str, Any],
    )

                return False, deltas

    def _advance_tool_call_state(
        self,
        item_state: Dict[str, Any],
        text: str,
        item_plan: Dict[str, Any],
    ) -> Tuple[bool, List[Dict[str, Any]]]:
        deltas: List[Dict[str, Any]] = []
        if item_plan["kind"] == "buffered":
            item_state["buffer"] = item_state["buffer"] + text
            return True, deltas
        if item_plan["kind"] == "json-message":
            buffer = item_state["pending"] + text
            item_state["pending"] = ""
            while True:
                mode = item_state["mode"]
                if mode == "function-name":
                    name_capture = item_plan["name_capture"]
                    name_prefix = name_capture["start"]
                    if buffer.startswith(name_prefix):
                        remainder = buffer[len(name_prefix) :]
                    elif name_prefix.startswith(buffer):
                        item_state["pending"] = buffer
                        return True, deltas
                    else:
                        return False, deltas
                    name_end = 0
                    while name_end < len(remainder) and (
                        remainder[name_end].isalnum() or remainder[name_end] == "_"
                    ):
                        name_end += 1
                    if name_end == 0:
                        if not remainder:
                            item_state["pending"] = buffer
                            return True, deltas
                        return False, deltas
                    if name_end == len(remainder):
                        item_state["pending"] = buffer
                        return True, deltas
                    function_name = remainder[:name_end]
                    item_state["tool_call"]["function"]["name"] = function_name
                    tool_call_index = cast(int, item_state["tool_call_index"])
                    deltas.append(
                        {
                            "tool_calls": [
                                {
                                    "index": tool_call_index,
                                    "id": (
                                        f"call_{self._choice_index}_{function_name}_"
                                        f"{self._completion_id}_{tool_call_index}"
                                    ),
                                    "type": "function",
                                    "function": {"name": function_name},
                                }
                            ]
                        }
                    )
                    buffer = remainder[name_end:]
                    item_state["mode"] = "seek-arguments"