71 lines
3.0 KiB
C++
71 lines
3.0 KiB
C++
#include <string>
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#include <vector>
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#include <sstream>
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#include <regex>
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#include <iostream>
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#undef NDEBUG
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#include <cassert>
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#include "jinja/jinja-parser.h"
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#include "jinja/jinja-lexer.h"
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int main(void) {
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//std::string contents = "{% if messages[0]['role'] == 'system' %}{{ raise_exception('System role not supported') }}{% endif %}{% 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'] == 'assistant') %}{% set role = 'model' %}{% else %}{% set role = message['role'] %}{% endif %}{{ '<start_of_turn>' + role + '\\n' + message['content'] | trim + '<end_of_turn>\\n' }}{% endfor %}{% if add_generation_prompt %}{{'<start_of_turn>model\\n'}}{% endif %}";
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//std::string contents = "{% if messages[0]['role'] != 'system' %}nice {{ messages[0]['content'] }}{% endif %}";
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std::string contents = "<some_tokens> {{ messages[0]['content'] }} <another_token>";
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std::cout << "=== INPUT ===\n" << contents << "\n\n";
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jinja::lexer lexer;
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jinja::preprocess_options options;
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options.trim_blocks = true;
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options.lstrip_blocks = false;
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auto tokens = lexer.tokenize(contents, options);
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for (const auto & tok : tokens) {
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std::cout << "token: type=" << static_cast<int>(tok.t) << " text='" << tok.value << "'\n";
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}
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std::cout << "\n=== AST ===\n";
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jinja::program ast = jinja::parse_from_tokens(tokens);
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for (const auto & stmt : ast.body) {
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std::cout << "stmt type: " << stmt->type() << "\n";
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}
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std::cout << "\n=== OUTPUT ===\n";
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jinja::context ctx;
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auto make_non_special_string = [](const std::string & s) {
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jinja::value_string str_val = std::make_unique<jinja::value_string_t>(s);
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str_val->is_user_input = true;
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return str_val;
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};
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jinja::value messages = jinja::mk_val<jinja::value_array>();
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jinja::value msg1 = jinja::mk_val<jinja::value_object>();
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(*msg1->val_obj)["role"] = make_non_special_string("user");
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(*msg1->val_obj)["content"] = make_non_special_string("Hello, how are you?");
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messages->val_arr->push_back(std::move(msg1));
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jinja::value msg2 = jinja::mk_val<jinja::value_object>();
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(*msg2->val_obj)["role"] = make_non_special_string("assistant");
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(*msg2->val_obj)["content"] = make_non_special_string("I am fine, thank you!");
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messages->val_arr->push_back(std::move(msg2));
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ctx.var["messages"] = std::move(messages);
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jinja::vm vm(ctx);
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auto results = vm.execute(ast);
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for (const auto & res : results) {
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auto str_ptr = dynamic_cast<jinja::value_string_t*>(res.get());
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std::string is_user_input = "false";
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if (str_ptr) {
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is_user_input = str_ptr->is_user_input ? "true" : "false";
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}
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std::cout << "result type: " << res->type() << " | value: " << res->as_string() << " | is_user_input: " << is_user_input << "\n";
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}
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return 0;
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}
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