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char-fork/llama.cpp

git clone https://git.t4t.associates/char-fork/llama.cpp

Aldehir Rojascommon : better align to the updated official gemma4 template (#21704)3fc65063d2026-04-10

1{%- macro format_parameters(properties, required) -%}
2    {%- set standard_keys = ['description', 'type', 'properties', 'required', 'nullable'] -%}
3    {%- set ns = namespace(found_first=false) -%}
4    {%- for key, value in properties | dictsort -%}
5        {%- set add_comma = false -%}
6        {%- if key not in standard_keys -%}
7            {%- if ns.found_first %},{% endif -%}
8            {%- set ns.found_first = true -%}
9            {{ key }}:{
10            {%- if value['description'] -%}
11                description:<|"|>{{ value['description'] }}<|"|>
12                {%- set add_comma = true -%}
13            {%- endif -%}
14            {%- if value['type'] | upper == 'STRING' -%}
15                {%- if value['enum'] -%}
16                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
17                    enum:{{ format_argument(value['enum']) }}
18                {%- endif -%}
19            {%- elif value['type'] | upper == 'ARRAY' -%}
20                {%- if value['items'] is mapping and value['items'] -%}
21                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
22                    items:{
23                    {%- set ns_items = namespace(found_first=false) -%}
24                    {%- for item_key, item_value in value['items'] | dictsort -%}
25                        {%- if item_value is not none -%}
26                            {%- if ns_items.found_first %},{% endif -%}
27                            {%- set ns_items.found_first = true -%}
28                            {%- if item_key == 'properties' -%}
29                                properties:{
30                                {%- if item_value is mapping -%}
31                                    {{- format_parameters(item_value, value['items']['required'] | default([])) -}}
32                                {%- endif -%}
33                                }
34                            {%- elif item_key == 'required' -%}
35                                required:[
36                                {%- for req_item in item_value -%}
37                                    <|"|>{{- req_item -}}<|"|>
38                                    {%- if not loop.last %},{% endif -%}
39                                {%- endfor -%}
40                                ]
41                            {%- elif item_key == 'type' -%}
42                                {%- if item_value is string -%}
43                                    type:{{ format_argument(item_value | upper) }}
44                                {%- else -%}
45                                    type:{{ format_argument(item_value | map('upper') | list) }}
46                                {%- endif -%}
47                            {%- else -%}
48                                {{ item_key }}:{{ format_argument(item_value) }}
49                            {%- endif -%}
50                        {%- endif -%}
51                    {%- endfor -%}
52                    }
53                {%- endif -%}
54            {%- endif -%}
55            {%- if value['nullable'] %}
56                {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
57                nullable:true
58            {%- endif -%}
59            {%- if value['type'] | upper == 'OBJECT' -%}
60                {%- if value['properties'] is defined and value['properties'] is mapping -%}
61                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
62                    properties:{
63                    {{- format_parameters(value['properties'], value['required'] | default([])) -}}
64                    }
65                {%- elif value is mapping -%}
66                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
67                    properties:{
68                    {{- format_parameters(value, value['required'] | default([])) -}}
69                    }
70                {%- endif -%}
71                {%- if value['required'] -%}
72                    {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
73                    required:[
74                    {%- for item in value['required'] | default([]) -%}
75                        <|"|>{{- item -}}<|"|>
76                        {%- if not loop.last %},{% endif -%}
77                    {%- endfor -%}
78                    ]
79                {%- endif -%}
80            {%- endif -%}
81            {%- if add_comma %},{%- else -%} {%- set add_comma = true -%} {% endif -%}
82            type:<|"|>{{ value['type'] | upper }}<|"|>}
83        {%- endif -%}
84    {%- endfor -%}
85{%- endmacro -%}
86{%- macro format_function_declaration(tool_data) -%}
87    declaration:{{- tool_data['function']['name'] -}}{description:<|"|>{{- tool_data['function']['description'] -}}<|"|>
88    {%- set params = tool_data['function']['parameters'] -%}
89    {%- if params -%}
90        ,parameters:{
91        {%- if params['properties'] -%}
92            properties:{ {{- format_parameters(params['properties'], params['required']) -}} },
93        {%- endif -%}
94        {%- if params['required'] -%}
95            required:[
96            {%- for item in params['required'] -%}
97                <|"|>{{- item -}}<|"|>
98                {{- ',' if not loop.last -}}
99            {%- endfor -%}
100            ],
101        {%- endif -%}
102        {%- if params['type'] -%}
103            type:<|"|>{{- params['type'] | upper -}}<|"|>}
104        {%- endif -%}
105    {%- endif -%}
106    {%- if 'response' in tool_data['function'] -%}
107        {%- set response_declaration = tool_data['function']['response'] -%}
108        ,response:{
109        {%- if response_declaration['description'] -%}
110            description:<|"|>{{- response_declaration['description'] -}}<|"|>,
111        {%- endif -%}
112        {%- if response_declaration['type'] | upper == 'OBJECT' -%}
113            type:<|"|>{{- response_declaration['type'] | upper -}}<|"|>}
114        {%- endif -%}
115    {%- endif -%}
116    }
117{%- endmacro -%}
118{%- macro format_argument(argument, escape_keys=True) -%}
119    {%- if argument is string -%}
120        {{- '<|"|>' + argument + '<|"|>' -}}
121    {%- elif argument is boolean -%}
122        {{- 'true' if argument else 'false' -}}
123    {%- elif argument is mapping -%}
124        {{- '{' -}}
125        {%- set ns = namespace(found_first=false) -%}
126        {%- for key, value in argument | dictsort -%}
127            {%- if ns.found_first %},{% endif -%}
128            {%- set ns.found_first = true -%}
129            {%- if escape_keys -%}
130                {{- '<|"|>' + key + '<|"|>' -}}
131            {%- else -%}
132                {{- key -}}
133            {%- endif -%}
134            :{{- format_argument(value, escape_keys=escape_keys) -}}
135        {%- endfor -%}
136        {{- '}' -}}
137    {%- elif argument is sequence -%}
138        {{- '[' -}}
139        {%- for item in argument -%}
140            {{- format_argument(item, escape_keys=escape_keys) -}}
141            {%- if not loop.last %},{% endif -%}
142        {%- endfor -%}
143        {{- ']' -}}
144    {%- else -%}
145        {{- argument -}}
146    {%- endif -%}
147{%- endmacro -%}
148{%- macro strip_thinking(text) -%}
149    {%- set ns = namespace(result='') -%}
150    {%- for part in text.split('<channel|>') -%}
151        {%- if '<|channel>' in part -%}
152            {%- set ns.result = ns.result + part.split('<|channel>')[0] -%}
153        {%- else -%}
154            {%- set ns.result = ns.result + part -%}
155        {%- endif -%}
156    {%- endfor -%}
157    {{- ns.result | trim -}}
158{%- endmacro -%}
159
160{%- macro format_tool_response_block(tool_name, response) -%}
161    {{- '<|tool_response>' -}}
162    {%- if response is mapping -%}
163        {{- 'response:' + tool_name + '{' -}}
164        {%- for key, value in response | dictsort -%}
165            {{- key -}}:{{- format_argument(value, escape_keys=False) -}}
166            {%- if not loop.last %},{% endif -%}
167        {%- endfor -%}
168        {{- '}' -}}
169    {%- else -%}
170        {{- 'response:' + tool_name + '{value:' + format_argument(response, escape_keys=False) + '}' -}}
171    {%- endif -%}
172    {{- '<tool_response|>' -}}
173{%- endmacro -%}
174
175{%- set ns = namespace(prev_message_type=None) -%}
176{%- set loop_messages = messages -%}
177{{- bos_token -}}
178{#- Handle System/Tool Definitions Block -#}
179{%- if (enable_thinking is defined and enable_thinking) or tools or messages[0]['role'] in ['system', 'developer'] -%}
180    {{- '<|turn>system\n' -}}
181
182    {#- Inject Thinking token at the very top of the FIRST system turn -#}
183    {%- if enable_thinking is defined and enable_thinking -%}
184        {{- '<|think|>\n' -}}
185        {%- set ns.prev_message_type = 'think' -%}
186    {%- endif -%}
187
188    {%- if messages[0]['role'] in ['system', 'developer'] -%}
189        {{- messages[0]['content'] | trim -}}
190        {%- set loop_messages = messages[1:] -%}
191    {%- endif -%}
192
193    {%- if tools -%}
194        {%- for tool in tools %}
195            {{- '<|tool>' -}}
196            {{- format_function_declaration(tool) | trim -}}
197            {{- '<tool|>' -}}
198        {%- endfor %}
199        {%- set ns.prev_message_type = 'tool' -%}
200    {%- endif -%}
201
202    {{- '<turn|>\n' -}}
203{%- endif %}
204
205{#- Pre-scan: find last user message index for reasoning guard -#}
206{%- set ns_turn = namespace(last_user_idx=-1) -%}
207{%- for i in range(loop_messages | length) -%}
208    {%- if loop_messages[i]['role'] == 'user' -%}
209        {%- set ns_turn.last_user_idx = i -%}
210    {%- endif -%}
211{%- endfor -%}
212
213{#- Loop through messages -#}
214{%- for message in loop_messages -%}
215    {%- if message['role'] != 'tool' -%}
216    {%- set ns.prev_message_type = None -%}
217    {%- set role = 'model' if message['role'] == 'assistant' else message['role'] -%}
218    {#- Detect continuation: suppress duplicate <|turn>model when previous non-tool message was also assistant -#}
219    {%- set prev_nt = namespace(role=None, found=false) -%}
220    {%- if loop.index0 > 0 -%}
221        {%- for j in range(loop.index0 - 1, -1, -1) -%}
222            {%- if not prev_nt.found -%}
223                {%- if loop_messages[j]['role'] != 'tool' -%}
224                    {%- set prev_nt.role = loop_messages[j]['role'] -%}
225                    {%- set prev_nt.found = true -%}
226                {%- endif -%}
227            {%- endif -%}
228        {%- endfor -%}
229    {%- endif -%}
230    {%- set continue_same_model_turn = (role == 'model' and prev_nt.role == 'assistant') -%}
231    {%- if not continue_same_model_turn -%}
232        {{- '<|turn>' + role + '\n' }}
233    {%- endif -%}
234
235    {#- Render reasoning/reasoning_content as thinking channel -#}
236    {%- set thinking_text = message.get('reasoning') or message.get('reasoning_content') -%}
237    {%- if thinking_text and loop.index0 > ns_turn.last_user_idx and message.get('tool_calls') -%}
238        {{- '<|channel>thought\n' + thinking_text + '\n<channel|>' -}}
239    {%- endif -%}
240
241            {%- if message['tool_calls'] -%}
242                {%- for tool_call in message['tool_calls'] -%}
243                    {%- set function = tool_call['function'] -%}
244                    {{- '<|tool_call>call:' + function['name'] + '{' -}}
245                    {%- if function['arguments'] is mapping -%}
246                        {%- set ns_args = namespace(found_first=false) -%}
247                        {%- for key, value in function['arguments'] | dictsort -%}
248                            {%- if ns_args.found_first %},{% endif -%}
249                            {%- set ns_args.found_first = true -%}
250                            {{- key -}}:{{- format_argument(value, escape_keys=False) -}}
251                        {%- endfor -%}
252                    {%- elif function['arguments'] is string -%}
253                        {{- function['arguments'] -}}
254                    {%- endif -%}
255                    {{- '}<tool_call|>' -}}
256                {%- endfor -%}
257                {%- set ns.prev_message_type = 'tool_call' -%}
258            {%- endif -%}
259
260            {%- set ns_tr_out = namespace(flag=false) -%}
261            {%- if message.get('tool_responses') -%}
262                {#- Legacy: tool_responses embedded on the assistant message (Google/Gemma native) -#}
263                {%- for tool_response in message['tool_responses'] -%}
264                    {{- format_tool_response_block(tool_response['name'] | default('unknown'), tool_response['response']) -}}
265                    {%- set ns_tr_out.flag = true -%}
266                    {%- set ns.prev_message_type = 'tool_response' -%}
267                {%- endfor -%}
268            {%- elif message.get('tool_calls') -%}
269                {#- OpenAI Chat Completions: forward-scan consecutive role:tool messages -#}
270                {%- set ns_tool_scan = namespace(stopped=false) -%}
271                {%- for k in range(loop.index0 + 1, loop_messages | length) -%}
272                    {%- if ns_tool_scan.stopped -%}
273                    {%- elif loop_messages[k]['role'] != 'tool' -%}
274                        {%- set ns_tool_scan.stopped = true -%}
275                    {%- else -%}
276                        {%- set follow = loop_messages[k] -%}
277                        {#- Resolve tool_call_id to function name -#}
278                        {%- set ns_tname = namespace(name=follow.get('name') | default('unknown')) -%}
279                        {%- for tc in message['tool_calls'] -%}
280                            {%- if tc.get('id') == follow.get('tool_call_id') -%}
281                                {%- set ns_tname.name = tc['function']['name'] -%}
282                            {%- endif -%}
283                        {%- endfor -%}
284                        {#- Handle content as string or content-parts array -#}
285                        {%- set tool_body = follow.get('content') -%}
286                        {%- if tool_body is string -%}
287                            {{- format_tool_response_block(ns_tname.name, tool_body) -}}
288                        {%- elif tool_body is sequence and tool_body is not string -%}
289                            {%- set ns_txt = namespace(s='') -%}
290                            {%- for part in tool_body -%}
291                                {%- if part.get('type') == 'text' -%}
292                                    {%- set ns_txt.s = ns_txt.s + (part.get('text') | default('')) -%}
293                                {%- endif -%}
294                            {%- endfor -%}
295                            {{- format_tool_response_block(ns_tname.name, ns_txt.s) -}}
296                        {%- else -%}
297                            {{- format_tool_response_block(ns_tname.name, tool_body) -}}
298                        {%- endif -%}
299                        {%- set ns_tr_out.flag = true -%}
300                        {%- set ns.prev_message_type = 'tool_response' -%}
301                    {%- endif -%}
302                {%- endfor -%}
303            {%- endif -%}
304
305            {%- if message['content'] is string -%}
306                {%- if role == 'model' -%}
307                    {{- strip_thinking(message['content']) -}}
308                {%- else -%}
309                    {{- message['content'] | trim -}}
310                {%- endif -%}
311            {%- elif message['content'] is sequence -%}
312                {%- for item in message['content'] -%}
313                    {%- if item['type'] == 'text' -%}
314                        {%- if role == 'model' -%}
315                            {{- strip_thinking(item['text']) -}}
316                        {%- else -%}
317                            {{- item['text'] | trim -}}
318                        {%- endif -%}
319                    {%- elif item['type'] == 'image' -%}
320                        {{- '<|image|>' -}}
321                        {%- set ns.prev_message_type = 'image' -%}
322                    {%- elif item['type'] == 'audio' -%}
323                        {{- '<|audio|>' -}}
324                        {%- set ns.prev_message_type = 'audio' -%}
325                    {%- elif item['type'] == 'video' -%}
326                        {{- '<|video|>' -}}
327                        {%- set ns.prev_message_type = 'video' -%}
328                    {%- endif -%}
329                {%- endfor -%}
330            {%- endif -%}
331
332        {%- if ns.prev_message_type == 'tool_call' and not ns_tr_out.flag -%}
333            {{- '<|tool_response>' -}}
334        {%- elif not (ns_tr_out.flag and not message.get('content')) -%}
335            {{- '<turn|>\n' -}}
336        {%- endif -%}
337    {%- endif -%}
338{%- endfor -%}
339
340{%- if add_generation_prompt -%}
341    {%- if ns.prev_message_type != 'tool_response' and ns.prev_message_type != 'tool_call' -%}
342        {{- '<|turn>model\n' -}}
343        {%- if not enable_thinking | default(false) -%}
344            {{- '<|channel>thought\n<channel|>' -}}
345        {%- endif -%}
346    {%- endif -%}
347{%- endif -%}