mirror of
https://github.com/ggerganov/llama.cpp.git
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11b12de39b
* llama: add llama_chat_apply_template * test-chat-template: remove dedundant vector * chat_template: do not use std::string for buffer * add clarification for llama_chat_apply_template * llama_chat_apply_template: add zephyr template * llama_chat_apply_template: correct docs * llama_chat_apply_template: use term "chat" everywhere * llama_chat_apply_template: change variable name to "tmpl"
65 lines
4.6 KiB
C++
65 lines
4.6 KiB
C++
#include <iostream>
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#include <string>
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#include <vector>
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#include <sstream>
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#undef NDEBUG
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#include <cassert>
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#include "llama.h"
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int main(void) {
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llama_chat_message conversation[] = {
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{"system", "You are a helpful assistant"},
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{"user", "Hello"},
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{"assistant", "Hi there"},
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{"user", "Who are you"},
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{"assistant", " I am an assistant "},
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{"user", "Another question"},
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};
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size_t message_count = 6;
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std::vector<std::string> templates = {
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// teknium/OpenHermes-2.5-Mistral-7B
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"{% for message in messages %}{{'<|im_start|>' + message['role'] + '\\n' + message['content'] + '<|im_end|>' + '\\n'}}{% endfor %}{% if add_generation_prompt %}{{ '<|im_start|>assistant\\n' }}{% endif %}",
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// mistralai/Mistral-7B-Instruct-v0.2
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"{{ bos_token }}{% for message in messages %}{% if (message['role'] == 'user') != (loop.index0 % 2 == 0) %}{{ raise_exception('Conversation roles must alternate user/assistant/user/assistant/...') }}{% endif %}{% if message['role'] == 'user' %}{{ '[INST] ' + message['content'] + ' [/INST]' }}{% elif message['role'] == 'assistant' %}{{ message['content'] + eos_token}}{% else %}{{ raise_exception('Only user and assistant roles are supported!') }}{% endif %}{% endfor %}",
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// TheBloke/FusionNet_34Bx2_MoE-AWQ
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"{%- for idx in range(0, messages|length) -%}\\n{%- if messages[idx]['role'] == 'user' -%}\\n{%- if idx > 1 -%}\\n{{- bos_token + '[INST] ' + messages[idx]['content'] + ' [/INST]' -}}\\n{%- else -%}\\n{{- messages[idx]['content'] + ' [/INST]' -}}\\n{%- endif -%}\\n{% elif messages[idx]['role'] == 'system' %}\\n{{- '[INST] <<SYS>>\\\\n' + messages[idx]['content'] + '\\\\n<</SYS>>\\\\n\\\\n' -}}\\n{%- elif messages[idx]['role'] == 'assistant' -%}\\n{{- ' ' + messages[idx]['content'] + ' ' + eos_token -}}\\n{% endif %}\\n{% endfor %}",
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// bofenghuang/vigogne-2-70b-chat
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"{{ bos_token }}{% if messages[0]['role'] == 'system' %}{% set loop_messages = messages[1:] %}{% set system_message = messages[0]['content'] %}{% elif true == true and not '<<SYS>>' in messages[0]['content'] %}{% set loop_messages = messages %}{% set system_message = 'Vous êtes Vigogne, un assistant IA créé par Zaion Lab. Vous suivez extrêmement bien les instructions. Aidez autant que vous le pouvez.' %}{% else %}{% set loop_messages = messages %}{% set system_message = false %}{% endif %}{% for message in loop_messages %}{% if (message['role'] == 'user') != (loop.index0 % 2 == 0) %}{{ raise_exception('Conversation roles must alternate user/assistant/user/assistant/...') }}{% endif %}{% if loop.index0 == 0 and system_message != false %}{% set content = '<<SYS>>\\\\n' + system_message + '\\\\n<</SYS>>\\\\n\\\\n' + message['content'] %}{% else %}{% set content = message['content'] %}{% endif %}{% if message['role'] == 'user' %}{{ '[INST] ' + content.strip() + ' [/INST]' }}{% elif message['role'] == 'system' %}{{ '<<SYS>>\\\\n' + content.strip() + '\\\\n<</SYS>>\\\\n\\\\n' }}{% elif message['role'] == 'assistant' %}{{ ' ' + content.strip() + ' ' + eos_token }}{% endif %}{% endfor %}",
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};
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std::vector<std::string> expected_substr = {
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"<|im_start|>assistant\n I am an assistant <|im_end|>\n<|im_start|>user\nAnother question<|im_end|>\n<|im_start|>assistant",
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"[/INST]Hi there</s>[INST] Who are you [/INST] I am an assistant </s>[INST] Another question [/INST]",
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"</s><s>[INST] Who are you [/INST] I am an assistant </s><s>[INST] Another question [/INST]",
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"[/INST] Hi there </s>[INST] Who are you [/INST] I am an assistant </s>[INST] Another question [/INST]",
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};
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std::vector<char> formatted_chat(1024);
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int32_t res;
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// test invalid chat template
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res = llama_chat_apply_template(nullptr, "INVALID TEMPLATE", conversation, message_count, true, formatted_chat.data(), formatted_chat.size());
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assert(res < 0);
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for (size_t i = 0; i < templates.size(); i++) {
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std::string custom_template = templates[i];
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std::string substr = expected_substr[i];
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formatted_chat.resize(1024);
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res = llama_chat_apply_template(
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nullptr,
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custom_template.c_str(),
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conversation,
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message_count,
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true,
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formatted_chat.data(),
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formatted_chat.size()
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);
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formatted_chat.resize(res);
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std::string output(formatted_chat.data(), formatted_chat.size());
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std::cout << output << "\n-------------------------\n";
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// expect the "formatted_chat" to contain pre-defined strings
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assert(output.find(substr) != std::string::npos);
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}
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return 0;
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}
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