98d5e8ba8a
* common/chat : fix LFM2 reasoning round-trip and stray <think> leak * Gate by reasoning format and whether the template supports <think>
115 lines
4.5 KiB
Django/Jinja
115 lines
4.5 KiB
Django/Jinja
{{- bos_token -}}
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{%- set preserve_thinking = preserve_thinking | default(false) -%}
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{%- macro format_arg_value(arg_value) -%}
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{%- if arg_value is string -%}
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{{- "'" + arg_value + "'" -}}
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{%- elif arg_value is mapping -%}
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{{- arg_value | tojson -}}
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{%- else -%}
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{{- arg_value | string -}}
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{%- endif -%}
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{%- endmacro -%}
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{%- macro parse_content(content) -%}
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{%- if content is string -%}
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{{- content -}}
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{%- else -%}
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{%- set _ns = namespace(result="") -%}
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{%- for item in content -%}
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{%- if item["type"] == "image" -%}
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{%- set _ns.result = _ns.result + "<image>" -%}
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{%- elif item["type"] == "text" -%}
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{%- set _ns.result = _ns.result + item["text"] -%}
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{%- else -%}
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{%- set _ns.result = _ns.result + item | tojson -%}
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{%- endif -%}
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{%- endfor -%}
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{{- _ns.result -}}
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{%- endif -%}
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{%- endmacro -%}
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{%- macro render_tool_calls(tool_calls) -%}
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{%- set tool_calls_ns = namespace(tool_calls=[]) -%}
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{%- for tool_call in tool_calls -%}
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{%- set func_name = tool_call["function"]["name"] -%}
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{%- set func_args = tool_call["function"]["arguments"] -%}
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{%- set args_ns = namespace(arg_strings=[]) -%}
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{%- for arg_name, arg_value in func_args.items() -%}
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{%- set args_ns.arg_strings = args_ns.arg_strings + [arg_name + "=" + format_arg_value(arg_value)] -%}
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{%- endfor -%}
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{%- set tool_calls_ns.tool_calls = tool_calls_ns.tool_calls + [func_name + "(" + (args_ns.arg_strings | join(", ")) + ")"] -%}
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{%- endfor -%}
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{{- "<|tool_call_start|>[" + (tool_calls_ns.tool_calls | join(", ")) + "]<|tool_call_end|>" -}}
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{%- endmacro -%}
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{%- set ns = namespace(system_prompt="", last_user_index=-1) -%}
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{%- if messages[0]["role"] == "system" -%}
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{%- if messages[0].get("content") -%}
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{%- set ns.system_prompt = parse_content(messages[0]["content"]) -%}
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{%- endif -%}
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{%- set messages = messages[1:] -%}
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{%- endif -%}
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{%- if tools -%}
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{%- set ns.system_prompt = ns.system_prompt + ("\n" if ns.system_prompt else "") + "List of tools: [" -%}
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{%- for tool in tools -%}
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{%- if tool is not string -%}
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{%- set tool = tool | tojson -%}
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{%- endif -%}
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{%- set ns.system_prompt = ns.system_prompt + tool -%}
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{%- if not loop.last -%}
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{%- set ns.system_prompt = ns.system_prompt + ", " -%}
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{%- endif -%}
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{%- endfor -%}
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{%- set ns.system_prompt = ns.system_prompt + "]" -%}
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{%- endif -%}
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{%- if ns.system_prompt -%}
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{{- "<|im_start|>system\n" + ns.system_prompt + "<|im_end|>\n" -}}
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{%- endif -%}
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{%- for message in messages -%}
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{%- if message["role"] == "user" -%}
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{%- set ns.last_user_index = loop.index0 -%}
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{%- endif -%}
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{%- endfor -%}
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{%- for message in messages -%}
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{{- "<|im_start|>" + message.role + "\n" -}}
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{%- if message.role == "assistant" -%}
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{%- generation -%}
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{%- if message.thinking is defined and (preserve_thinking or loop.index0 > ns.last_user_index) -%}
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{{- "<think>" + message.thinking + "</think>" -}}
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{%- endif -%}
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{%- set _cfm_tag = "CONTINUE_FINAL_MESSAGE_TAG " -%}
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{%- set _has_cfm = false -%}
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{%- if message.content is defined -%}
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{%- set content = parse_content(message.content) -%}
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{%- if not (preserve_thinking or loop.index0 > ns.last_user_index) -%}
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{%- if "</think>" in content -%}
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{%- set content = content.split("</think>")[-1] | trim -%}
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{%- endif -%}
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{%- endif -%}
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{%- if message.tool_calls is defined and content.endswith(_cfm_tag) -%}
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{%- set _has_cfm = true -%}
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{%- set _trunc_len = (content | length) - (_cfm_tag | length) -%}
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{{- content[:_trunc_len] -}}
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{%- else -%}
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{{- content -}}
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{%- endif -%}
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{%- endif -%}
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{%- if message.tool_calls is defined -%}
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{{- render_tool_calls(message.tool_calls) -}}
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{%- endif -%}
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{%- if _has_cfm -%}
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{{- _cfm_tag -}}
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{%- endif -%}
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{{- "<|im_end|>\n" -}}
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{%- endgeneration -%}
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{%- else %}
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{%- if message.get("content") -%}
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{{- parse_content(message["content"]) -}}
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{%- endif -%}
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{{- "<|im_end|>\n" -}}
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{%- endif %}
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{%- endfor -%}
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{%- if add_generation_prompt -%}
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{{- "<|im_start|>assistant\n" -}}
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{%- endif -%} |