common/parser: add GigaChatV3/3.1 models support (#19931)

Co-authored-by: Mishusha <pmv26021975@gmail.com>
This commit is contained in:
Mishusha
2026-03-12 03:22:25 +03:00
committed by GitHub
parent fdb17643d3
commit a8304b4d27
4 changed files with 810 additions and 0 deletions
+80
View File
@@ -1354,6 +1354,77 @@ static common_chat_params common_chat_params_init_lfm2(const common_chat_templat
return data;
}
static common_chat_params common_chat_params_init_gigachat_v3(
const common_chat_template & tmpl,
const autoparser::templates_params & inputs) {
common_chat_params data;
data.prompt = common_chat_template_direct_apply(tmpl, inputs);
data.format = COMMON_CHAT_FORMAT_PEG_NATIVE;
data.supports_thinking = false;
data.preserved_tokens = {
"<|message_sep|>\n\n",
"<|role_sep|>\n",
};
auto has_tools = inputs.tools.is_array() && !inputs.tools.empty();
auto include_grammar = has_tools && inputs.tool_choice != COMMON_CHAT_TOOL_CHOICE_NONE;
auto tool_call_start_prefix = "<|message_sep|>\n\nfunction call<|role_sep|>\n";
auto parser = build_chat_peg_parser([&](common_chat_peg_builder & p) {
if (has_tools && inputs.tool_choice != COMMON_CHAT_TOOL_CHOICE_NONE) {
// Build a choice of all available tools
auto tool_choice = p.choice();
for (const auto & tool : inputs.tools) {
const auto & function = tool.at("function");
std::string name = function.at("name");
const auto & schema = function.at("parameters");
auto tool_name = p.json_member("name", "\"" + p.tool_name(p.literal(name)) + "\"");
auto tool_args = p.json_member("arguments", p.tool_args(p.schema(p.json(), "tool-" + name + "-schema", schema)));
auto tool_open = p.tool_open(p.literal("{") << tool_name);
tool_choice |= p.rule("tool-" + name, tool_open << "," << tool_args << "}");
}
// Define the tool call structure
auto min_calls = inputs.tool_choice == COMMON_CHAT_TOOL_CHOICE_REQUIRED ? 1 : 0;
auto max_calls = 1; // parallel toolcalls are not supported
auto tool_call = p.rule("tool-call", p.literal(tool_call_start_prefix) + tool_choice);
auto tool_calls = p.trigger_rule("tool-call-root", p.repeat(tool_call, /* min = */ min_calls, /* max = */ max_calls));
return p.content(p.until("<|message_sep|>\n\n")) << tool_calls;
}
// Content only parser
include_grammar = false;
return p.content(p.rest());
});
data.parser = parser.save();
if (include_grammar) {
data.grammar_lazy = has_tools && inputs.tool_choice == COMMON_CHAT_TOOL_CHOICE_AUTO;
data.grammar = build_grammar([&](const common_grammar_builder & builder) {
foreach_function(inputs.tools, [&](const json & tool) {
const auto & function = tool.at("function");
auto schema = function.at("parameters");
builder.resolve_refs(schema);
});
parser.build_grammar(builder, data.grammar_lazy);
});
data.grammar_triggers = {
{COMMON_GRAMMAR_TRIGGER_TYPE_WORD, tool_call_start_prefix}
};
}
return data;
}
namespace workaround {
static void map_developer_role_to_system(json & messages) {
@@ -1525,6 +1596,15 @@ static common_chat_params common_chat_templates_apply_jinja(const struct common_
return common_chat_params_init_lfm2(tmpl, params);
}
// GigaChatV3 format detection
if (src.find("<|role_sep|>") != std::string::npos &&
src.find("<|message_sep|>") != std::string::npos &&
src.find("<|function_call|>") == std::string::npos
) {
LOG_DBG("Using specialized template: GigaChatV3\n");
return common_chat_params_init_gigachat_v3(tmpl, params);
}
try {
LOG_DBG("Using differential autoparser\n");
struct autoparser::autoparser autoparser;