Files
llama.cpp/common/parsers/gigachat-v3.cpp
T
Piotr Wilkin (ilintar) 895c045fd1 chat : split specialized parsers into common/parsers (#27764)
* chat : split specialized parsers into common/parsers

Move the 14 dedicated template parsers out of chat.cpp into one file each under
common/parsers, mirroring the src/models split. chat.cpp keeps the template
detection in common_chat_try_specialized_template() and drops from 3915 to 1513
lines.

common/parsers/parsers.h holds the shared helpers and one declaration per
parser. foreach_function/foreach_parameter become inline there since nothing in
chat.cpp uses them any more; common_chat_template_direct_apply_impl and
common_chat_template_generation_prompt_impl lose static and carry their default
arguments in the header. Parser-specific helpers move with their parser:
is_lfm2_template, deepseek_v4_sort_tool_results and the gemma4 turn builder.

No functional change.

Assisted-by: Claude Opus 5

* chat : enumerate parser sources instead of globbing

file(GLOB) does not re-run CMake when a source file is added or removed, so an
incremental build silently keeps building the old set. List the parsers in
common/parsers/sources.cmake and include it from common/CMakeLists.txt.

Assisted-by: Claude Opus 5

* split helpers, add newlines
2026-09-08 09:29:37 +03:00

82 lines
3.3 KiB
C++

#include "parsers.h"
common_chat_params common_chat_params_init_gigachat_v3(
const common_chat_template & tmpl,
const autoparser::generation_params & inputs) {
common_chat_params data;
data.prompt = common_chat_template_direct_apply_impl(tmpl, inputs);
data.generation_prompt = common_chat_template_generation_prompt_impl(tmpl, inputs);
data.format = COMMON_CHAT_FORMAT_PEG_NATIVE;
data.supports_thinking = false;
data.preserved_tokens = {
"<|message_sep|>\n\n",
"<|role_sep|>\n",
};
if (inputs.has_continuation()) {
const auto & msg = inputs.continue_msg;
data.generation_prompt = "assistant<|role_sep|>\n" + msg.render_content();
data.prompt += data.generation_prompt;
}
auto has_tools = inputs.tools.is_array() && !inputs.tools.empty();
auto include_grammar = has_tools && inputs.tool_choice != COMMON_CHAT_TOOL_CHOICE_NONE;
const auto *tool_call_start_prefix = "<|message_sep|>\n\nfunction call<|role_sep|>\n";
auto parser = build_chat_peg_parser([&](common_chat_peg_builder & p) {
auto ret = p.eps();
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));
ret = p.content(p.until("<|message_sep|>\n\n")) << tool_calls;
} else {
// Content only parser
include_grammar = false;
ret = p.content(p.rest());
}
return p.literal("assistant<|role_sep|>\n") + ret;
});
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;
}