Merge https://github.com/abetlen/llama-cpp-python

cmake [options] <path-to-source>
  cmake [options] <path-to-existing-build>
  cmake [options] -S <path-to-source> -B <path-to-build>

Specify a source directory to (re-)generate a build system for it in the
current working directory.  Specify an existing build directory to
re-generate its build system.

Run 'cmake --help' for more information. issue

.github/workflows/build-and-release.yaml

@@ -41,6 +41,35 @@ jobs:
         with:
           path: ./wheelhouse/*.whl
 
+  build_arm64_wheels:
+    name: Build arm64 wheels
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: "recursive"
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+        with:
+          platforms: linux/arm64
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@v2.16.5
+        env:
+          CIBW_SKIP: "*musllinux* pp*"
+          CIBW_REPAIR_WHEEL_COMMAND: ""
+          CIBW_ARCHS: "aarch64"
+          CIBW_BUILD: "cp38-* cp39-* cp310-* cp311-* cp312-*"
+        with:
+          output-dir: wheelhouse/
+
+      - name: Upload wheels as artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: wheels-${{ matrix.version }}
+          path: wheelhouse/*.whl
+
   build_sdist:
     name: Build source distribution
     runs-on: ubuntu-latest
@@ -65,7 +94,7 @@ jobs:
 
   release:
     name: Release
-    needs: [build_wheels, build_sdist]
+    needs: [build_wheels, build_arm64_wheels, build_sdist]
     runs-on: ubuntu-latest
 
     steps:

CHANGELOG.md

@@ -7,6 +7,35 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.64]
+
+- feat: Update llama.cpp to ggerganov/llama.cpp@4e96a812b3ce7322a29a3008db2ed73d9087b176
+- feat: Add `llama-3` chat format by @andreabak in #1371
+- feat: Use new llama_token_is_eog in create_completions by @abetlen in d40a250ef3cfaa8224d12c83776a2f1de96ae3d1
+- feat(server): Provide ability to dynamically allocate all threads if desired using -1 by @sean-bailey in #1364
+- ci: Build arm64 wheels by @gaby in 611781f5319719a3d05fefccbbf0cc321742a026
+- fix: Update scikit-build-core build dependency avoid bug in 0.9.1 by @evelkey in #1370
+
+## [0.2.63]
+
+- feat: Update llama.cpp to ggerganov/llama.cpp@0e4802b2ecbaab04b4f829fde4a3096ca19c84b5
+- feat: Add stopping_criteria to ChatFormatter, allow stopping on arbitrary token ids, fixes llama3 instruct by @abetlen in cc81afebf04d26ca1ac3cf72f23f18da6ab58588
+
+## [0.2.62]
+
+- feat: Update llama.cpp to ggerganov/llama.cpp@3b8f1ec4b18770531d0b1d792f3edf08254e4f0c
+- feat: update grammar schema converter to match llama.cpp by @themrzmaster in #1353
+- feat: add disable_ping_events flag by @khimaros in #1257
+- feat: Make saved state more compact on-disk by @tc-wolf in #1296
+- feat: Use all available CPUs for batch processing by @ddh0 in #1345
+
+## [0.2.61]
+
+- feat: Update llama.cpp to ggerganov/llama.cpp@ba5e134e073ec6837078c874aba44a702944a676
+- fix: pass correct type to chat handlers for chat completion logprobs by @abetlen in bb65b4d76411112c6fb0bf759efd746f99ef3c6b
+- feat: Add support for yaml based server configs by @abetlen in 060bfa64d529ade2af9b1f4e207a3937bbc4138f
+- feat: Add typechecking for ctypes structure attributes by @abetlen in 1347e1d050fc5a9a32ffe0bb3e22858da28003bd
+
 ## [0.2.60]
 
 - feat: Update llama.cpp to ggerganov/llama.cpp@75cd4c77292034ecec587ecb401366f57338f7c0

examples/batch-processing/server.py

@@ -0,0 +1,30 @@
+"""llama-cpp-python server from scratch in a single file.
+"""
+
+# import llama_cpp
+
+# path = b"../../models/Qwen1.5-0.5B-Chat-GGUF/qwen1_5-0_5b-chat-q8_0.gguf"
+
+# model_params = llama_cpp.llama_model_default_params()
+# model = llama_cpp.llama_load_model_from_file(path, model_params)
+
+# if model is None:
+#     raise RuntimeError(f"Failed to load model from file: {path}")
+
+
+# ctx_params = llama_cpp.llama_context_default_params()
+# ctx = llama_cpp.llama_new_context_with_model(model, ctx_params)
+
+# if ctx is None:
+#     raise RuntimeError("Failed to create context")
+
+
+from fastapi import FastAPI
+
+app = FastAPI()
+
+import openai.types.chat as types
+
+@app.post("/v1/chat/completions")
+def create_chat_completions():
+    return {"message": "Hello World"}

llama_cpp/__init__.py

@@ -1,4 +1,4 @@
 from .llama_cpp import *
 from .llama import *
 
-__version__ = "0.2.60"
+__version__ = "0.2.64"

llama_cpp/_internals.py

@@ -181,20 +181,20 @@ class _LlamaModel:
                 )
         return list(tokens[:n_tokens])
 
-    def token_to_piece(self, token: int) -> bytes:
+    def token_to_piece(self, token: int, special: bool = False) -> bytes:
         assert self.model is not None
         buf = ctypes.create_string_buffer(32)
-        llama_cpp.llama_token_to_piece(self.model, token, buf, 32)
+        llama_cpp.llama_token_to_piece(self.model, token, buf, 32, special)
         return bytes(buf)
 
-    def detokenize(self, tokens: List[int]) -> bytes:
+    def detokenize(self, tokens: List[int], special: bool = False) -> bytes:
         assert self.model is not None
         output = b""
         size = 32
         buffer = (ctypes.c_char * size)()
         for token in tokens:
             n = llama_cpp.llama_token_to_piece(
-                self.model, llama_cpp.llama_token(token), buffer, size
+                self.model, llama_cpp.llama_token(token), buffer, size, special
             )
             assert n <= size
             output += bytes(buffer[:n])
@@ -597,13 +597,13 @@ def _tokenize(model: _LlamaModel, text: str, add_bos: bool, special: bool) -> li
     return list(result)
 
 
-def _token_to_piece(model: _LlamaModel, token: int) -> str:
+def _token_to_piece(model: _LlamaModel, token: int, special: bool = False) -> str:
     assert model.model is not None
     result = (ctypes.c_char * 8)(0)
-    n_tokens = llama_cpp.llama_token_to_piece(model.model, token, result, len(result))
+    n_tokens = llama_cpp.llama_token_to_piece(model.model, token, result, len(result), special)
     if n_tokens < 0:
         result = (ctypes.c_char * -n_tokens)(0)
-        check = llama_cpp.llama_token_to_piece(model.model, token, result, len(result))
+        check = llama_cpp.llama_token_to_piece(model.model, token, result, len(result), special)
         if check != -n_tokens:
             raise RuntimeError(f"Failed to get piece: token={token}")
     else:

llama_cpp/llama.py

@@ -18,6 +18,7 @@ from typing import (
     Iterator,
     Deque,
     Callable,
+    Dict,
 )
 from collections import deque
 from pathlib import Path
@@ -262,9 +263,7 @@ class Llama:
 
         self.n_batch = min(n_ctx, n_batch)  # ???
         self.n_threads = n_threads or max(multiprocessing.cpu_count() // 2, 1)
-        self.n_threads_batch = n_threads_batch or max(
-            multiprocessing.cpu_count() // 2, 1
-        )
+        self.n_threads_batch = n_threads_batch or multiprocessing.cpu_count()
 
         # Context Params
         self.context_params = llama_cpp.llama_context_default_params()
@@ -427,7 +426,10 @@ class Llama:
                     print(f"Using chat bos_token: {bos_token}", file=sys.stderr)
 
                 self.chat_handler = llama_chat_format.Jinja2ChatFormatter(
-                    template=template, eos_token=eos_token, bos_token=bos_token
+                    template=template,
+                    eos_token=eos_token,
+                    bos_token=bos_token,
+                    stop_token_ids=[eos_token_id],
                 ).to_chat_handler()
 
         if self.chat_format is None and self.chat_handler is None:
@@ -1032,7 +1034,8 @@ class Llama:
             logits_processor=logits_processor,
             grammar=grammar,
         ):
-            if token == self._token_eos:
+            assert self._model.model is not None
+            if llama_cpp.llama_token_is_eog(self._model.model, token):
                 text = self.detokenize(completion_tokens, prev_tokens=prompt_tokens)
                 finish_reason = "stop"
                 break
@@ -1664,7 +1667,8 @@ class Llama:
             top_k=top_k,
             min_p=min_p,
             typical_p=typical_p,
-            logprobs=top_logprobs if logprobs else None,
+            logprobs=logprobs,
+            top_logprobs=top_logprobs,
             stream=stream,
             stop=stop,
             seed=seed,
@@ -1792,7 +1796,7 @@ class Llama:
                 file=sys.stderr,
             )
         return LlamaState(
-            scores=self.scores.copy(),
+            scores=self._scores.copy(),
             input_ids=self.input_ids.copy(),
             n_tokens=self.n_tokens,
             llama_state=bytes(llama_state_compact),
@@ -1801,7 +1805,9 @@ class Llama:
 
     def load_state(self, state: LlamaState) -> None:
         assert self._ctx.ctx is not None
-        self.scores = state.scores.copy()
+        # Only filling in up to `n_tokens` and then zero-ing out the rest
+        self.scores[: state.n_tokens, :] = state.scores.copy()
+        self.scores[state.n_tokens :, :] = 0.0
         self.input_ids = state.input_ids.copy()
         self.n_tokens = state.n_tokens
         state_size = state.llama_state_size
@@ -1952,7 +1958,6 @@ class Llama:
                 local_dir_use_symlinks=local_dir_use_symlinks,
                 cache_dir=cache_dir,
                 local_files_only=True,
-
             )
         else:
             model_path = os.path.join(local_dir, filename)

llama_cpp/llama_chat_format.py

@@ -10,6 +10,9 @@ from typing import Any, Dict, Iterator, List, Literal, Optional, Tuple, Union, P
 
 import jinja2
 
+import numpy as np
+import numpy.typing as npt
+
 import llama_cpp.llama as llama
 import llama_cpp.llama_types as llama_types
 import llama_cpp.llama_grammar as llama_grammar
@@ -32,6 +35,9 @@ MISTRAL_INSTRUCT_EOS_TOKEN = "</s>"
 # Source: https://huggingface.co/mistralai/Mixtral-8x7B-Instruct-v0.1/blob/main/tokenizer_config.json
 MIXTRAL_INSTRUCT_CHAT_TEMPLATE = "{{ 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 %}"
 
+# Source: https://huggingface.co/meta-llama/Meta-Llama-3-8B-Instruct/blob/main/tokenizer_config.json
+LLAMA3_INSTRUCT_CHAT_TEMPLATE = "{% set loop_messages = messages %}{% for message in loop_messages %}{% set content = '<|start_header_id|>' + message['role'] + '<|end_header_id|>\n\n'+ message['content'] | trim + '<|eot_id|>' %}{% if loop.index0 == 0 %}{% set content = bos_token + content %}{% endif %}{{ content }}{% endfor %}{% if add_generation_prompt %}{{ '<|start_header_id|>assistant<|end_header_id|>\n\n' }}{% endif %}"
+
 ### Chat Completion Handler ###
 
 
@@ -77,6 +83,8 @@ class LlamaChatCompletionHandler(Protocol):
         mirostat_eta: float = 0.1,
         logits_processor: Optional[llama.LogitsProcessorList] = None,
         grammar: Optional[llama.LlamaGrammar] = None,
+        logprobs: Optional[bool] = None,
+        top_logprobs: Optional[int] = None,
         **kwargs,  # type: ignore
     ) -> Union[
         llama_types.CreateChatCompletionResponse,
@@ -148,6 +156,7 @@ class ChatFormatterResponse:
 
     prompt: str
     stop: Optional[Union[str, List[str]]] = None
+    stopping_criteria: Optional[llama.StoppingCriteriaList] = None
 
 
 class ChatFormatter(Protocol):
@@ -171,12 +180,14 @@ class Jinja2ChatFormatter(ChatFormatter):
         eos_token: str,
         bos_token: str,
         add_generation_prompt: bool = True,
+        stop_token_ids: Optional[List[int]] = None,
     ):
         """A chat formatter that uses jinja2 templates to format the prompt."""
         self.template = template
         self.eos_token = eos_token
         self.bos_token = bos_token
         self.add_generation_prompt = add_generation_prompt
+        self.stop_token_ids = set(stop_token_ids) if stop_token_ids is not None else None
 
         self._environment = jinja2.Environment(
             loader=jinja2.BaseLoader(),
@@ -209,7 +220,16 @@ class Jinja2ChatFormatter(ChatFormatter):
             tool_choice=tool_choice,
         )
 
-        return ChatFormatterResponse(prompt=prompt, stop=[self.eos_token])
+        stopping_criteria = None
+        if self.stop_token_ids is not None:
+            def stop_on_last_token(
+                    tokens: npt.NDArray[np.intc],
+                    logits: npt.NDArray[np.single]
+            ) -> bool:
+                return tokens[-1] in self.stop_token_ids
+            stopping_criteria = llama.StoppingCriteriaList([stop_on_last_token])
+
+        return ChatFormatterResponse(prompt=prompt, stop=[self.eos_token], stopping_criteria=stopping_criteria)
 
     def to_chat_handler(self) -> LlamaChatCompletionHandler:
         return chat_formatter_to_chat_completion_handler(self)
@@ -338,7 +358,7 @@ def _convert_completion_to_chat_function(
                             }
                         ],
                     },
-                    "logprobs": None,
+                    "logprobs": completion["choices"][0]["logprobs"],
                     "finish_reason": "tool_calls",
                 }
             ],
@@ -391,7 +411,7 @@ def _convert_completion_to_chat_function(
                             {
                                 "index": 0,
                                 "finish_reason": None,
-                                "logprobs": None,
+                                "logprobs": chunk["choices"][0]["logprobs"],
                                 "delta": {
                                     "role": None,
                                     "content": None,
@@ -426,7 +446,7 @@ def _convert_completion_to_chat_function(
                         {
                             "index": 0,
                             "finish_reason": None,
-                            "logprobs": None,
+                            "logprobs": chunk["choices"][0]["logprobs"],
                             "delta": {
                                 "role": None,
                                 "content": None,
@@ -491,7 +511,6 @@ def chat_formatter_to_chat_completion_handler(
         temperature: float = 0.2,
         top_p: float = 0.95,
         top_k: int = 40,
-        logprobs: int = 0,
         min_p: float = 0.05,
         typical_p: float = 1.0,
         stream: bool = False,
@@ -512,6 +531,8 @@ def chat_formatter_to_chat_completion_handler(
         logits_processor: Optional[llama.LogitsProcessorList] = None,
         grammar: Optional[llama.LlamaGrammar] = None,
         logit_bias: Optional[Dict[str, float]] = None,
+        logprobs: Optional[bool] = None,
+        top_logprobs: Optional[int] = None,
         **kwargs,  # type: ignore
     ) -> Union[
         llama_types.CreateChatCompletionResponse,
@@ -530,6 +551,10 @@ def chat_formatter_to_chat_completion_handler(
             rstop = result.stop if isinstance(result.stop, list) else [result.stop]
             stop = stop + rstop
 
+        stopping_criteria = None
+        if result.stopping_criteria is not None:
+            stopping_criteria = result.stopping_criteria
+
         if response_format is not None and response_format["type"] == "json_object":
             grammar = _grammar_for_response_format(response_format, verbose=llama.verbose)
 
@@ -581,7 +606,7 @@ def chat_formatter_to_chat_completion_handler(
             top_k=top_k,
             min_p=min_p,
             typical_p=typical_p,
-            logprobs=logprobs,
+            logprobs=top_logprobs if logprobs else None,
             stream=stream,
             stop=stop,
             seed=seed,
@@ -595,6 +620,7 @@ def chat_formatter_to_chat_completion_handler(
             mirostat_eta=mirostat_eta,
             model=model,
             logits_processor=logits_processor,
+            stopping_criteria=stopping_criteria,
             grammar=grammar,
             logit_bias=logit_bias,
         )
@@ -706,6 +732,9 @@ def guess_chat_format_from_gguf_metadata(metadata: Dict[str, str]) -> Optional[s
             metadata["tokenizer.chat_template"] == MIXTRAL_INSTRUCT_CHAT_TEMPLATE):
         return "mistral-instruct"
 
+    if metadata["tokenizer.chat_template"] == LLAMA3_INSTRUCT_CHAT_TEMPLATE:
+        return "llama-3"
+
     return None
 
 
@@ -897,6 +926,26 @@ def format_llama2(
     return ChatFormatterResponse(prompt=_prompt)
 
 
+# Chat format for Llama-3 models, see more details at:
+# https://github.com/meta-llama/llama3/blob/main/llama/tokenizer.py#L202-L229
+@register_chat_format("llama-3")
+def format_llama3(
+    messages: List[llama_types.ChatCompletionRequestMessage],
+    **kwargs: Any,
+) -> ChatFormatterResponse:
+    _roles = dict(
+        system="<|start_header_id|>system<|end_header_id|>\n\n",
+        user="<|start_header_id|>user<|end_header_id|>\n\n",
+        assistant="<|start_header_id|>assistant<|end_header_id|>\n\n",
+    )
+    _begin_token = "<|begin_of_text|>"
+    _sep = "<|eot_id|>"
+    _messages = _map_roles(messages, _roles)
+    _messages.append((_roles["assistant"], None))
+    _prompt = _format_no_colon_single(_begin_token, _messages, _sep)
+    return ChatFormatterResponse(prompt=_prompt, stop=_sep)
+
+
 @register_chat_format("alpaca")
 def format_alpaca(
     messages: List[llama_types.ChatCompletionRequestMessage],
@@ -1628,7 +1677,7 @@ def functionary_chat_handler(
                         }
                     ],
                 },
-                "logprobs": None,
+                "logprobs": completion["choices"][0]["logprobs"],
                 "finish_reason": "tool_calls",
             }
         ],
@@ -2085,7 +2134,7 @@ def functionary_v1_v2_chat_handler(
         choices=[
             {
                 "index": 0,
-                "logprobs": None,
+                "logprobs": completion["choices"][0]["logprobs"],
                 "message": {
                     "role": "assistant",
                     "content": None if content == "" else content,
@@ -2311,11 +2360,14 @@ def chatml_function_calling(
     model: Optional[str] = None,
     logits_processor: Optional[llama.LogitsProcessorList] = None,
     grammar: Optional[llama.LlamaGrammar] = None,
+    logprobs: Optional[bool] = None,
+    top_logprobs: Optional[int] = None,
     **kwargs,  # type: ignore
 ) -> Union[
     llama_types.CreateChatCompletionResponse,
     Iterator[llama_types.CreateChatCompletionStreamResponse],
 ]:
+    print(logprobs)
     function_calling_template = (
         "{% for message in messages %}"
         "<|im_start|>{{ message.role }}\n"
@@ -2437,6 +2489,7 @@ def chatml_function_calling(
                 model=model,
                 logits_processor=logits_processor,
                 grammar=grammar,
+                logprobs=top_logprobs if logprobs else None,
             ),
             stream=stream,
         )
@@ -2549,6 +2602,7 @@ def chatml_function_calling(
                 typical_p=typical_p,
                 stream=stream,
                 stop=["<|im_end|>"],
+                logprobs=top_logprobs if logprobs else None,
                 max_tokens=None,
                 presence_penalty=presence_penalty,
                 frequency_penalty=frequency_penalty,
@@ -2660,7 +2714,7 @@ def chatml_function_calling(
                 {
                     "finish_reason": "tool_calls",
                     "index": 0,
-                    "logprobs": None,
+                    "logprobs": completion["choices"][0]["logprobs"],
                     "message": {
                         "role": "assistant",
                         "content": None,

llama_cpp/llama_cpp.py

@@ -237,11 +237,18 @@ LLAMA_FILE_MAGIC_GGLA = 0x67676C61
 # define LLAMA_FILE_MAGIC_GGSN 0x6767736eu // 'ggsn'
 LLAMA_FILE_MAGIC_GGSN = 0x6767736E
 
+# define LLAMA_FILE_MAGIC_GGSQ 0x67677371u // 'ggsq'
+LLAMA_FILE_MAGIC_GGSQ = 0x67677371
+
 # define LLAMA_SESSION_MAGIC   LLAMA_FILE_MAGIC_GGSN
 LLAMA_SESSION_MAGIC = LLAMA_FILE_MAGIC_GGSN
 # define LLAMA_SESSION_VERSION 5
 LLAMA_SESSION_VERSION = 5
 
+# define LLAMA_STATE_SEQ_MAGIC   LLAMA_FILE_MAGIC_GGSQ
+LLAMA_STATE_SEQ_MAGIC = LLAMA_FILE_MAGIC_GGSQ
+# define LLAMA_STATE_SEQ_VERSION 1
+LLAMA_STATE_SEQ_VERSION = 1
 
 # struct llama_model;
 llama_model_p = NewType("llama_model_p", int)
@@ -424,6 +431,11 @@ class llama_token_data(ctypes.Structure):
         logit (float): log-odds of the token
         p (float): probability of the token"""
 
+    if TYPE_CHECKING:
+        id: llama_token
+        logit: float
+        p: float
+
     _fields_ = [
         ("id", llama_token),
         ("logit", ctypes.c_float),
@@ -447,6 +459,11 @@ class llama_token_data_array(ctypes.Structure):
         size (int): size of the array
         sorted (bool): whether the array is sorted"""
 
+    if TYPE_CHECKING:
+        data: CtypesArray[llama_token_data]
+        size: int
+        sorted: bool
+
     _fields_ = [
         ("data", llama_token_data_p),
         ("size", ctypes.c_size_t),
@@ -508,6 +525,15 @@ class llama_batch(ctypes.Structure):
         logits (ctypes.Array[ctypes.ctypes.c_int8]): if zero, the logits for the respective token will not be output
     """
 
+    if TYPE_CHECKING:
+        n_tokens: int
+        token: CtypesArray[llama_token]
+        embd: CtypesArray[ctypes.c_float]
+        pos: CtypesArray[CtypesArray[llama_pos]]
+        n_seq_id: CtypesArray[ctypes.c_int]
+        seq_id: CtypesArray[CtypesArray[llama_seq_id]]
+        logits: CtypesArray[ctypes.c_int8]
+
     _fields_ = [
         ("n_tokens", ctypes.c_int32),
         ("token", ctypes.POINTER(llama_token)),
@@ -602,6 +628,18 @@ class llama_model_params(ctypes.Structure):
         use_mmap (bool): use mmap if possible
         use_mlock (bool): force system to keep model in RAM"""
 
+    if TYPE_CHECKING:
+        n_gpu_layers: int
+        split_mode: int
+        main_gpu: int
+        tensor_split: CtypesArray[ctypes.c_float]
+        progress_callback: Callable[[float, ctypes.c_void_p], bool]
+        progress_callback_user_data: ctypes.c_void_p
+        kv_overrides: CtypesArray[llama_model_kv_override]
+        vocab_only: bool
+        use_mmap: bool
+        use_mlock: bool
+
     _fields_ = [
         ("n_gpu_layers", ctypes.c_int32),
         ("split_mode", ctypes.c_int),
@@ -689,6 +727,34 @@ class llama_context_params(ctypes.Structure):
         abort_callback_data (ctypes.ctypes.c_void_p): data for abort_callback
     """
 
+    if TYPE_CHECKING:
+        seed: int
+        n_ctx: int
+        n_batch: int
+        n_ubatch: int
+        n_seq_max: int
+        n_threads: int
+        n_threads_batch: int
+        rope_scaling_type: int
+        pooling_type: int
+        rope_freq_base: float
+        rope_freq_scale: float
+        yarn_ext_factor: float
+        yarn_attn_factor: float
+        yarn_beta_fast: float
+        yarn_beta_slow: float
+        yarn_orig_ctx: int
+        defrag_thold: float
+        cb_eval: Callable[[ctypes.c_void_p, bool], bool]
+        cb_eval_user_data: ctypes.c_void_p
+        type_k: int
+        type_v: int
+        logits_all: bool
+        embeddings: bool
+        offload_kqv: bool
+        abort_callback: Callable[[ctypes.c_void_p], bool]
+        abort_callback_data: ctypes.c_void_p
+
     _fields_ = [
         ("seed", ctypes.c_uint32),
         ("n_ctx", ctypes.c_uint32),
@@ -764,6 +830,18 @@ class llama_model_quantize_params(ctypes.Structure):
         kv_overrides (ctypes.c_void_p): pointer to vector containing overrides
     """
 
+    if TYPE_CHECKING:
+        nthread: int
+        ftype: int
+        output_tensor_type: int
+        token_embedding_type: int
+        allow_requantize: bool
+        quantize_output_tensor: bool
+        only_copy: bool
+        pure: bool
+        imatrix: ctypes.c_void_p
+        kv_overrides: ctypes.c_void_p
+
     _fields_ = [
         ("nthread", ctypes.c_int32),
         ("ftype", ctypes.c_int),
@@ -821,6 +899,10 @@ LLAMA_GRETYPE_CHAR_ALT = 6
 #     uint32_t           value; // Unicode code point or rule ID
 # } llama_grammar_element;
 class llama_grammar_element(ctypes.Structure):
+    if TYPE_CHECKING:
+        type: int
+        value: int
+
     _fields_ = [
         ("type", ctypes.c_int),
         ("value", ctypes.c_uint32),
@@ -844,6 +926,17 @@ llama_grammar_element_p = ctypes.POINTER(llama_grammar_element)
 #     int32_t n_eval;
 # };
 class llama_timings(ctypes.Structure):
+    if TYPE_CHECKING:
+        t_start_ms: float
+        t_end_ms: float
+        t_load_ms: float
+        t_sample_ms: float
+        t_p_eval_ms: float
+        t_eval_ms: float
+        n_sample: int
+        n_p_eval: int
+        n_eval: int
+
     _fields_ = [
         ("t_start_ms", ctypes.c_double),
         ("t_end_ms", ctypes.c_double),
@@ -944,7 +1037,8 @@ GGML_NUMA_STRATEGY_COUNT = 5
     [ctypes.c_int],
     None,
 )
-def llama_numa_init(numa: int, /): ...
+def llama_numa_init(numa: int, /):
+    ...
 
 
 # // Call once at the end of the program - currently only used for MPI
@@ -969,7 +1063,8 @@ def llama_backend_free():
 )
 def llama_load_model_from_file(
     path_model: bytes, params: llama_model_params, /
-) -> Optional[llama_model_p]: ...
+) -> Optional[llama_model_p]:
+    ...
 
 
 # LLAMA_API void llama_free_model(struct llama_model * model);
@@ -978,7 +1073,8 @@ def llama_load_model_from_file(
     [llama_model_p_ctypes],
     None,
 )
-def llama_free_model(model: llama_model_p, /): ...
+def llama_free_model(model: llama_model_p, /):
+    ...
 
 
 # LLAMA_API struct llama_context * llama_new_context_with_model(
@@ -991,7 +1087,8 @@ def llama_free_model(model: llama_model_p, /): ...
 )
 def llama_new_context_with_model(
     model: llama_model_p, params: llama_context_params, /
-) -> Optional[llama_context_p]: ...
+) -> Optional[llama_context_p]:
+    ...
 
 
 # // Frees all allocated memory
@@ -1012,82 +1109,98 @@ def llama_free(ctx: llama_context_p, /):
     [],
     ctypes.c_int64,
 )
-def llama_time_us() -> int: ...
+def llama_time_us() -> int:
+    ...
 
 
 # LLAMA_API size_t llama_max_devices(void);
 @ctypes_function("llama_max_devices", [], ctypes.c_size_t)
-def llama_max_devices() -> int: ...
+def llama_max_devices() -> int:
+    ...
 
 
 # LLAMA_API bool llama_supports_mmap       (void);
 @ctypes_function("llama_supports_mmap", [], ctypes.c_bool)
-def llama_supports_mmap() -> bool: ...
+def llama_supports_mmap() -> bool:
+    ...
 
 
 # LLAMA_API bool llama_supports_mlock      (void);
 @ctypes_function("llama_supports_mlock", [], ctypes.c_bool)
-def llama_supports_mlock() -> bool: ...
+def llama_supports_mlock() -> bool:
+    ...
 
 
 # LLAMA_API bool llama_supports_gpu_offload(void);
 @ctypes_function("llama_supports_gpu_offload", [], ctypes.c_bool)
-def llama_supports_gpu_offload() -> bool: ...
+def llama_supports_gpu_offload() -> bool:
+    ...
 
 
 # LLAMA_API const struct llama_model * llama_get_model(const struct llama_context * ctx);
 @ctypes_function("llama_get_model", [llama_context_p_ctypes], llama_model_p_ctypes)
-def llama_get_model(ctx: llama_context_p, /) -> Optional[llama_model_p]: ...
+def llama_get_model(ctx: llama_context_p, /) -> Optional[llama_model_p]:
+    ...
 
 
 # LLAMA_API uint32_t llama_n_ctx      (const struct llama_context * ctx);
 @ctypes_function("llama_n_ctx", [llama_context_p_ctypes], ctypes.c_uint32)
-def llama_n_ctx(ctx: llama_context_p, /) -> int: ...
+def llama_n_ctx(ctx: llama_context_p, /) -> int:
+    ...
 
 
 # LLAMA_API uint32_t llama_n_batch    (const struct llama_context * ctx);
 @ctypes_function("llama_n_batch", [llama_context_p_ctypes], ctypes.c_uint32)
-def llama_n_batch(ctx: llama_context_p, /) -> int: ...
+def llama_n_batch(ctx: llama_context_p, /) -> int:
+    ...
 
 
 # LLAMA_API uint32_t llama_n_ubatch   (const struct llama_context * ctx);
 @ctypes_function("llama_n_ubatch", [llama_context_p_ctypes], ctypes.c_uint32)
-def llama_n_ubatch(ctx: llama_context_p, /) -> int: ...
+def llama_n_ubatch(ctx: llama_context_p, /) -> int:
+    ...
 
 
 # LLAMA_API uint32_t llama_n_seq_max  (const struct llama_context * ctx);
 @ctypes_function("llama_n_seq_max", [llama_context_p_ctypes], ctypes.c_uint32)
-def llama_n_seq_max(ctx: llama_context_p, /) -> int: ...
+def llama_n_seq_max(ctx: llama_context_p, /) -> int:
+    ...
 
 
 # LLAMA_API enum llama_vocab_type llama_vocab_type(const struct llama_model * model);
 @ctypes_function("llama_vocab_type", [llama_model_p_ctypes], ctypes.c_int)
-def llama_vocab_type(model: llama_model_p, /) -> int: ...
+def llama_vocab_type(model: llama_model_p, /) -> int:
+    ...
 
 
 # LLAMA_API enum llama_rope_type  llama_rope_type (const struct llama_model * model);
 @ctypes_function("llama_rope_type", [llama_model_p_ctypes], ctypes.c_int)
-def llama_rope_type(model: llama_model_p, /) -> int: ...
+def llama_rope_type(model: llama_model_p, /) -> int:
+    ...
 
 
 # LLAMA_API int32_t llama_n_vocab    (const struct llama_model * model);
 @ctypes_function("llama_n_vocab", [llama_model_p_ctypes], ctypes.c_int32)
-def llama_n_vocab(model: llama_model_p, /) -> int: ...
+def llama_n_vocab(model: llama_model_p, /) -> int:
+    ...
 
 
 # LLAMA_API int32_t llama_n_ctx_train(const struct llama_model * model);
 @ctypes_function("llama_n_ctx_train", [llama_model_p_ctypes], ctypes.c_int32)
-def llama_n_ctx_train(model: llama_model_p, /) -> int: ...
+def llama_n_ctx_train(model: llama_model_p, /) -> int:
+    ...
 
 
 # LLAMA_API int32_t llama_n_embd     (const struct llama_model * model);
 @ctypes_function("llama_n_embd", [llama_model_p_ctypes], ctypes.c_int32)
-def llama_n_embd(model: llama_model_p, /) -> int: ...
+def llama_n_embd(model: llama_model_p, /) -> int:
+    ...
 
 
 # LLAMA_API int32_t llama_n_layer    (const struct llama_model * model);
 @ctypes_function("llama_n_layer", [llama_model_p_ctypes], ctypes.c_int32)
-def llama_n_layer(model: llama_model_p, /) -> int: ...
+def llama_n_layer(model: llama_model_p, /) -> int:
+    ...
 
 
 # // Get the model's RoPE frequency scaling factor
@@ -1351,6 +1464,9 @@ class llama_kv_cache_view_cell(ctypes.Structure):
         pos (llama_pos): The position for this cell. Takes KV cache shifts into account.
             May be negative if the cell is not populated."""
 
+    if TYPE_CHECKING:
+        pos: llama_pos
+
     _fields_ = [("pos", llama_pos)]
 
 
@@ -1387,6 +1503,16 @@ class llama_kv_cache_view_cell(ctypes.Structure):
 #     llama_seq_id * cells_sequences;
 # };
 class llama_kv_cache_view(ctypes.Structure):
+    if TYPE_CHECKING:
+        n_cells: int
+        n_max_seq: int
+        token_count: int
+        used_cells: int
+        max_contiguous: int
+        max_contiguous_idx: int
+        cells: CtypesArray[llama_kv_cache_view_cell]
+        cells_sequences: CtypesArray[llama_seq_id]
+
     _fields_ = [
         ("n_cells", ctypes.c_int32),
         ("n_max_seq", ctypes.c_int32),
@@ -1467,6 +1593,7 @@ def llama_kv_cache_clear(ctx: llama_context_p, /):
 
 
 # // Removes all tokens that belong to the specified sequence and have positions in [p0, p1)
+# // Returns false if a partial sequence cannot be removed. Removing a whole sequence never fails
 # // seq_id < 0 : match any sequence
 # // p0 < 0     : [0,  p1]
 # // p1 < 0     : [p0, inf)
@@ -1493,6 +1620,9 @@ def llama_kv_cache_seq_rm(
     /,
 ) -> bool:
     """Removes all tokens that belong to the specified sequence and have positions in [p0, p1)
+
+    Returns false if a partial sequence cannot be removed. Removing a whole sequence never fails
+
     seq_id < 0 : match any sequence
     p0 < 0     : [0,  p1]
     p1 < 0     : [p0, inf)"""
@@ -1652,7 +1782,16 @@ def llama_kv_cache_update(ctx: llama_context_p, /):
 
 # Returns the maximum size in bytes of the state (rng, logits, embedding
 # and kv_cache) - will often be smaller after compacting tokens
-# LLAMA_API size_t llama_get_state_size(const struct llama_context * ctx);
+# LLAMA_API size_t llama_state_get_size(const struct llama_context * ctx);
+@ctypes_function("llama_state_get_size", [llama_context_p_ctypes], ctypes.c_size_t)
+def llama_state_get_size(ctx: llama_context_p, /) -> int:
+    """Returns the maximum size in bytes of the state (rng, logits, embedding
+    and kv_cache) - will often be smaller after compacting tokens"""
+    ...
+
+
+# LLAMA_API DEPRECATED(size_t llama_get_state_size(const struct llama_context * ctx),
+#     "use llama_state_get_size instead");
 @ctypes_function("llama_get_state_size", [llama_context_p_ctypes], ctypes.c_size_t)
 def llama_get_state_size(ctx: llama_context_p, /) -> int:
     """Returns the maximum size in bytes of the state (rng, logits, embedding
@@ -1663,9 +1802,30 @@ def llama_get_state_size(ctx: llama_context_p, /) -> int:
 # Copies the state to the specified destination address.
 # Destination needs to have allocated enough memory.
 # Returns the number of bytes copied
-# LLAMA_API size_t llama_copy_state_data(
+# LLAMA_API size_t llama_state_get_data(
 #         struct llama_context * ctx,
 #                      uint8_t * dst);
+@ctypes_function(
+    "llama_state_get_data",
+    [
+        llama_context_p_ctypes,
+        ctypes.POINTER(ctypes.c_uint8),
+    ],
+    ctypes.c_size_t,
+)
+def llama_state_get_data(
+    ctx: llama_context_p, dst: CtypesArray[ctypes.c_uint8], /
+) -> int:
+    """Copies the state to the specified destination address.
+    Destination needs to have allocated enough memory.
+    Returns the number of bytes copied"""
+    ...
+
+
+# LLAMA_API DEPRECATED(size_t llama_copy_state_data(
+#         struct llama_context * ctx,
+#                      uint8_t * dst),
+#     "use llama_state_get_data instead");
 @ctypes_function(
     "llama_copy_state_data",
     [
@@ -1685,9 +1845,26 @@ def llama_copy_state_data(
 
 # // Set the state reading from the specified address
 # // Returns the number of bytes read
-# LLAMA_API size_t llama_set_state_data(
+# LLAMA_API size_t llama_state_set_data(
 #         struct llama_context * ctx,
 #                const uint8_t * src);
+@ctypes_function(
+    "llama_state_set_data",
+    [llama_context_p_ctypes, ctypes.POINTER(ctypes.c_uint8)],
+    ctypes.c_size_t,
+)
+def llama_state_set_data(
+    ctx: llama_context_p, src: CtypesArray[ctypes.c_uint8], /
+) -> int:
+    """Set the state reading from the specified address
+    Returns the number of bytes read"""
+    ...
+
+
+# LLAMA_API DEPRECATED(size_t llama_set_state_data(
+#         struct llama_context * ctx,
+#                const uint8_t * src),
+#     "use llama_state_set_data instead");
 @ctypes_function(
     "llama_set_state_data",
     [llama_context_p_ctypes, ctypes.POINTER(ctypes.c_uint8)],
@@ -1701,12 +1878,41 @@ def llama_set_state_data(
 
 
 # Save/load session file
-# LLAMA_API bool llama_load_session_file(
+# LLAMA_API bool llama_state_load_file(
 #         struct llama_context * ctx,
 #                   const char * path_session,
 #                  llama_token * tokens_out,
 #                       size_t   n_token_capacity,
 #                       size_t * n_token_count_out);
+@ctypes_function(
+    "llama_state_load_file",
+    [
+        llama_context_p_ctypes,
+        ctypes.c_char_p,
+        llama_token_p,
+        ctypes.c_size_t,
+        ctypes.POINTER(ctypes.c_size_t),
+    ],
+    ctypes.c_bool,
+)
+def llama_state_load_file(
+    ctx: llama_context_p,
+    path_session: bytes,
+    tokens_out: CtypesArray[llama_token],
+    n_token_capacity: Union[ctypes.c_size_t, int],
+    n_token_count_out: CtypesPointerOrRef[ctypes.c_size_t],
+    /,
+) -> bool:
+    ...
+
+
+# LLAMA_API DEPRECATED(bool llama_load_session_file(
+#         struct llama_context * ctx,
+#                   const char * path_session,
+#                  llama_token * tokens_out,
+#                       size_t   n_token_capacity,
+#                       size_t * n_token_count_out),
+#     "use llama_state_load_file instead");
 @ctypes_function(
     "llama_load_session_file",
     [
@@ -1725,14 +1931,41 @@ def llama_load_session_file(
     n_token_capacity: Union[ctypes.c_size_t, int],
     n_token_count_out: CtypesPointerOrRef[ctypes.c_size_t],
     /,
-) -> int: ...
+) -> int:
+    ...
 
 
-# LLAMA_API bool llama_save_session_file(
+# LLAMA_API bool llama_state_save_file(
 #         struct llama_context * ctx,
 #                   const char * path_session,
 #            const llama_token * tokens,
 #                       size_t   n_token_count);
+@ctypes_function(
+    "llama_state_save_file",
+    [
+        llama_context_p_ctypes,
+        ctypes.c_char_p,
+        llama_token_p,
+        ctypes.c_size_t,
+    ],
+    ctypes.c_bool,
+)
+def llama_state_save_file(
+    ctx: llama_context_p,
+    path_session: bytes,
+    tokens: CtypesArray[llama_token],
+    n_token_count: Union[ctypes.c_size_t, int],
+    /,
+) -> bool:
+    ...
+
+
+# LLAMA_API DEPRECATED(bool llama_save_session_file(
+#         struct llama_context * ctx,
+#                   const char * path_session,
+#            const llama_token * tokens,
+#                       size_t   n_token_count),
+#     "use llama_state_save_file instead");
 @ctypes_function(
     "llama_save_session_file",
     [
@@ -1749,7 +1982,118 @@ def llama_save_session_file(
     tokens: CtypesArray[llama_token],
     n_token_count: Union[ctypes.c_size_t, int],
     /,
-) -> int: ...
+) -> int:
+    ...
+
+
+# // Get the exact size needed to copy the KV cache of a single sequence
+# LLAMA_API size_t llama_state_seq_get_size(
+#         struct llama_context * ctx,
+#                 llama_seq_id   seq_id);
+@ctypes_function(
+    "llama_state_seq_get_size",
+    [llama_context_p_ctypes, llama_seq_id],
+    ctypes.c_size_t,
+)
+def llama_state_seq_get_size(ctx: llama_context_p, seq_id: llama_seq_id, /) -> int:
+    """Get the exact size needed to copy the KV cache of a single sequence"""
+    ...
+
+
+# // Copy the KV cache of a single sequence into the specified buffer
+# LLAMA_API size_t llama_state_seq_get_data(
+#         struct llama_context * ctx,
+#                      uint8_t * dst,
+#                 llama_seq_id   seq_id);
+@ctypes_function(
+    "llama_state_seq_get_data",
+    [llama_context_p_ctypes, ctypes.POINTER(ctypes.c_uint8), llama_seq_id],
+    ctypes.c_size_t,
+)
+def llama_state_seq_get_data(
+    ctx: llama_context_p, dst: CtypesArray[ctypes.c_uint8], seq_id: llama_seq_id, /
+) -> int:
+    """Copy the KV cache of a single sequence into the specified buffer"""
+    ...
+
+
+# // Copy the sequence data (originally copied with `llama_state_seq_get_data`) into the specified sequence
+# // Returns:
+# //  - Positive: Ok
+# //  - Zero: Failed to load
+# LLAMA_API size_t llama_state_seq_set_data(
+#         struct llama_context * ctx,
+#                const uint8_t * src,
+#                 llama_seq_id   dest_seq_id);
+@ctypes_function(
+    "llama_state_seq_set_data",
+    [llama_context_p_ctypes, ctypes.POINTER(ctypes.c_uint8), llama_seq_id],
+    ctypes.c_size_t,
+)
+def llama_state_seq_set_data(
+    ctx: llama_context_p, src: CtypesArray[ctypes.c_uint8], dest_seq_id: llama_seq_id, /
+) -> int:
+    """Copy the sequence data (originally copied with `llama_state_seq_get_data`) into the specified sequence"""
+    ...
+
+
+# LLAMA_API size_t llama_state_seq_save_file(
+#         struct llama_context * ctx,
+#                   const char * filepath,
+#                 llama_seq_id   seq_id,
+#            const llama_token * tokens,
+#                       size_t   n_token_count);
+@ctypes_function(
+    "llama_state_seq_save_file",
+    [
+        llama_context_p_ctypes,
+        ctypes.c_char_p,
+        llama_seq_id,
+        llama_token_p,
+        ctypes.c_size_t,
+    ],
+    ctypes.c_size_t,
+)
+def llama_state_seq_save_file(
+    ctx: llama_context_p,
+    filepath: bytes,
+    seq_id: llama_seq_id,
+    tokens: CtypesArray[llama_token],
+    n_token_count: Union[ctypes.c_size_t, int],
+    /,
+) -> int:
+    ...
+
+
+# LLAMA_API size_t llama_state_seq_load_file(
+#         struct llama_context * ctx,
+#                   const char * filepath,
+#                 llama_seq_id   dest_seq_id,
+#                  llama_token * tokens_out,
+#                       size_t   n_token_capacity,
+#                       size_t * n_token_count_out);
+@ctypes_function(
+    "llama_state_seq_load_file",
+    [
+        llama_context_p_ctypes,
+        ctypes.c_char_p,
+        llama_seq_id,
+        llama_token_p,
+        ctypes.c_size_t,
+        ctypes.POINTER(ctypes.c_size_t),
+    ],
+    ctypes.c_size_t,
+)
+def llama_state_seq_load_file(
+    ctx: llama_context_p,
+    filepath: bytes,
+    dest_seq_id: llama_seq_id,
+    tokens_out: CtypesArray[llama_token],
+    n_token_capacity: Union[ctypes.c_size_t, int],
+    n_token_count_out: CtypesPointerOrRef[ctypes.c_size_t],
+    /,
+) -> int:
+    ...
 
 
 # //
@@ -1930,8 +2274,9 @@ def llama_get_logits(ctx: llama_context_p, /) -> CtypesArray[ctypes.c_float]:
     ...
 
 
-# // Logits for the ith token. Equivalent to:
+# // Logits for the ith token. For positive indices, Equivalent to:
 # // llama_get_logits(ctx) + ctx->output_ids[i]*n_vocab
+# // Negative indicies can be used to access logits in reverse order, -1 is the last logit.
 # // returns NULL for invalid ids.
 # LLAMA_API float * llama_get_logits_ith(struct llama_context * ctx, int32_t i);
 @ctypes_function(
@@ -1963,8 +2308,9 @@ def llama_get_embeddings(ctx: llama_context_p, /) -> CtypesArray[ctypes.c_float]
     ...
 
 
-# // Get the embeddings for the ith token. Equivalent to:
+# // Get the embeddings for the ith token. For positive indices, Equivalent to:
 # // llama_get_embeddings(ctx) + ctx->output_ids[i]*n_embd
+# // Negative indicies can be used to access embeddings in reverse order, -1 is the last embedding.
 # // shape: [n_embd] (1-dimensional)
 # // returns NULL for invalid ids.
 # LLAMA_API float * llama_get_embeddings_ith(struct llama_context * ctx, int32_t i);
@@ -2010,7 +2356,8 @@ def llama_get_embeddings_seq(
 )
 def llama_token_get_text(
     model: llama_model_p, token: Union[llama_token, int], /
-) -> bytes: ...
+) -> bytes:
+    ...
 
 
 # LLAMA_API float llama_token_get_score(const struct llama_model * model, llama_token token);
@@ -2019,7 +2366,8 @@ def llama_token_get_text(
 )
 def llama_token_get_score(
     model: llama_model_p, token: Union[llama_token, int], /
-) -> float: ...
+) -> float:
+    ...
 
 
 # LLAMA_API enum llama_token_type llama_token_get_type(const struct llama_model * model, llama_token token);
@@ -2028,7 +2376,20 @@ def llama_token_get_score(
 )
 def llama_token_get_type(
     model: llama_model_p, token: Union[llama_token, int], /
-) -> int: ...
+) -> int:
+    ...
+
+
+# // Check if the token is supposed to end generation (end-of-generation, eg. EOS, EOT, etc.)
+# LLAMA_API bool llama_token_is_eog(const struct llama_model * model, llama_token token);
+@ctypes_function(
+    "llama_token_is_eog", [llama_model_p_ctypes, llama_token], ctypes.c_bool
+)
+def llama_token_is_eog(
+    model: llama_model_p, token: Union[llama_token, int], /
+) -> bool:
+    """Check if the token is supposed to end generation (end-of-generation, eg. EOS, EOT, etc.)"""
+    ...
 
 
 # // Special tokens
@@ -2048,6 +2409,20 @@ def llama_token_eos(model: llama_model_p, /) -> int:
     ...
 
 
+# LLAMA_API llama_token llama_token_cls(const struct llama_model * model); // classification
+@ctypes_function("llama_token_cls", [llama_model_p_ctypes], llama_token)
+def llama_token_cls(model: llama_model_p, /) -> int:
+    """classification"""
+    ...
+
+
+# LLAMA_API llama_token llama_token_sep(const struct llama_model * model); // sentence separator
+@ctypes_function("llama_token_sep", [llama_model_p_ctypes], llama_token)
+def llama_token_sep(model: llama_model_p, /) -> int:
+    """sentence separator"""
+    ...
+
+
 # LLAMA_API llama_token llama_token_nl (const struct llama_model * model); // next-line
 @ctypes_function("llama_token_nl", [llama_model_p_ctypes], llama_token)
 def llama_token_nl(model: llama_model_p, /) -> int:
@@ -2071,7 +2446,7 @@ def llama_add_eos_token(model: llama_model_p, /) -> int:
     ...
 
 
-# // codellama infill tokens
+# // Codellama infill tokens
 # LLAMA_API llama_token llama_token_prefix(const struct llama_model * model); // Beginning of infill prefix
 @ctypes_function("llama_token_prefix", [llama_model_p_ctypes], llama_token)
 def llama_token_prefix(model: llama_model_p) -> int:
@@ -2081,17 +2456,20 @@ def llama_token_prefix(model: llama_model_p) -> int:
 
 # LLAMA_API llama_token llama_token_middle(const struct llama_model * model); // Beginning of infill middle
 @ctypes_function("llama_token_middle", [llama_model_p_ctypes], llama_token)
-def llama_token_middle(model: llama_model_p, /) -> int: ...
+def llama_token_middle(model: llama_model_p, /) -> int:
+    ...
 
 
 # LLAMA_API llama_token llama_token_suffix(const struct llama_model * model); // Beginning of infill suffix
 @ctypes_function("llama_token_suffix", [llama_model_p_ctypes], llama_token)
-def llama_token_suffix(model: llama_model_p, /) -> int: ...
+def llama_token_suffix(model: llama_model_p, /) -> int:
+    ...
 
 
 # LLAMA_API llama_token llama_token_eot   (const struct llama_model * model); // End of infill middle
 @ctypes_function("llama_token_eot", [llama_model_p_ctypes], llama_token)
-def llama_token_eot(model: llama_model_p, /) -> int: ...
+def llama_token_eot(model: llama_model_p, /) -> int:
+    ...
 
 
 # //
@@ -2103,16 +2481,16 @@ def llama_token_eot(model: llama_model_p, /) -> int: ...
 # /// @param tokens The tokens pointer must be large enough to hold the resulting tokens.
 # /// @return Returns the number of tokens on success, no more than n_tokens_max
 # /// @return Returns a negative number on failure - the number of tokens that would have been returned
-# /// @param special Allow tokenizing special and/or control tokens which otherwise are not exposed and treated as plaintext.
-# ///                Does not insert a leading space.
+# /// @param parse_special Allow tokenizing special and/or control tokens which otherwise are not exposed and treated
+# ///                      as plaintext. Does not insert a leading space.
 # LLAMA_API int32_t llama_tokenize(
 #     const struct llama_model * model,
 #                   const char * text,
 #                      int32_t   text_len,
 #                  llama_token * tokens,
 #                      int32_t   n_tokens_max,
-#                         bool   add_bos,
-#                         bool   special);
+#                         bool   add_special,
+#                         bool   parse_special);
 @ctypes_function(
     "llama_tokenize",
     [
@@ -2132,8 +2510,8 @@ def llama_tokenize(
     text_len: Union[ctypes.c_int, int],
     tokens: CtypesArray[llama_token],
     n_tokens_max: Union[ctypes.c_int, int],
-    add_bos: Union[ctypes.c_bool, bool],
-    special: Union[ctypes.c_bool, bool],
+    add_special: Union[ctypes.c_bool, bool],
+    parse_special: Union[ctypes.c_bool, bool],
     /,
 ) -> int:
     """Convert the provided text into tokens.
@@ -2144,9 +2522,8 @@ def llama_tokenize(
         text_len: The length of the text.
         tokens: The tokens pointer must be large enough to hold the resulting tokens.
         n_max_tokens: The maximum number of tokens to return.
-        add_bos: Whether to add a beginning-of-sentence token.
-        special: Allow tokenizing special and/or control tokens which otherwise are not exposed and treated as plaintext.
-                 Does not insert a leading space.
+        add_special: Allow tokenizing special and/or control tokens which otherwise are not exposed and treated as plaintext. Does not insert a leading space.
+        parse_special: Allow parsing special tokens.
 
     Returns:
         Returns the number of tokens on success, no more than n_tokens_max
@@ -2159,11 +2536,13 @@ def llama_tokenize(
 # // Uses the vocabulary in the provided context.
 # // Does not write null terminator to the buffer.
 # // User code is responsible to remove the leading whitespace of the first non-BOS token when decoding multiple tokens.
+# // @param special If true, special tokens are rendered in the output.
 # LLAMA_API int32_t llama_token_to_piece(
 #           const struct llama_model * model,
 #                        llama_token   token,
 #                               char * buf,
-#                            int32_t   length);
+#                            int32_t   length,
+#                               bool   special);
 @ctypes_function(
     "llama_token_to_piece",
     [
@@ -2171,6 +2550,7 @@ def llama_tokenize(
         llama_token,
         ctypes.c_char_p,
         ctypes.c_int32,
+        ctypes.c_bool,
     ],
     ctypes.c_int32,
 )
@@ -2179,13 +2559,20 @@ def llama_token_to_piece(
     token: Union[llama_token, int],
     buf: Union[ctypes.c_char_p, bytes, CtypesArray[ctypes.c_char]],
     length: Union[ctypes.c_int, int],
+    special: Union[ctypes.c_bool, bool],
     /,
 ) -> int:
     """Token Id -> Piece.
     Uses the vocabulary in the provided context.
     Does not write null terminator to the buffer.
     User code is responsible to remove the leading whitespace of the first non-BOS token when decoding multiple tokens.
-    """
+
+    Args:
+        model: The model to use for tokenization.
+        token: The token to convert.
+        buf: The buffer to write the token to.
+        length: The length of the buffer.
+        special: If true, special tokens are rendered in the output."""
     ...
 
 
@@ -2223,7 +2610,8 @@ def llama_chat_apply_template(
     chat: CtypesArray[llama_chat_message],
     n_msg: int,
     /,
-) -> int: ...
+) -> int:
+    ...
 
 
 # //
@@ -2753,6 +3141,12 @@ def llama_grammar_accept_token(
 #     bool   eob;      // Callback should set this to true when a beam is at end-of-beam.
 # };
 class llama_beam_view(ctypes.Structure):
+    if TYPE_CHECKING:
+        tokens: CtypesArray[llama_token]
+        n_tokens: int
+        p: float
+        eob: bool
+
     _fields_ = [
         ("tokens", llama_token_p),
         ("n_tokens", ctypes.c_size_t),
@@ -2772,6 +3166,12 @@ class llama_beam_view(ctypes.Structure):
 #     bool   last_call;             // True iff this is the last callback invocation.
 # };
 class llama_beams_state(ctypes.Structure):
+    if TYPE_CHECKING:
+        beam_views: CtypesArray[llama_beam_view]
+        n_beams: int
+        common_prefix_length: int
+        last_call: bool
+
     _fields_ = [
         ("beam_views", ctypes.POINTER(llama_beam_view)),
         ("n_beams", ctypes.c_size_t),
@@ -2824,7 +3224,8 @@ def llama_beam_search(
     n_past: Union[ctypes.c_int, int],
     n_predict: Union[ctypes.c_int, int],
     /,
-): ...
+):
+    ...
 
 
 # /// @details Build a split GGUF final path for this chunk.
@@ -2943,4 +3344,5 @@ def llama_log_set(
     [ctypes.c_void_p, llama_context_p_ctypes],
     None,
 )
-def llama_dump_timing_info_yaml(stream: ctypes.c_void_p, ctx: llama_context_p, /): ...
+def llama_dump_timing_info_yaml(stream: ctypes.c_void_p, ctx: llama_context_p, /):
+    ...

llama_cpp/llama_grammar.py

@@ -5,11 +5,12 @@ from pathlib import Path
 import sys
 from ctypes import *  # type: ignore
 from enum import Enum
-from itertools import islice
+from itertools import islice, groupby
 from typing import (
     Any,
     Callable,
     Dict,
+    Set,
     Generic,
     List,
     Optional,
@@ -1391,145 +1392,561 @@ from typing import List, Optional
 # whitespace. Also maybe improves generation quality?
 SPACE_RULE = '" "?'
 
-PRIMITIVE_RULES = {
-    "boolean": '("true" | "false") space',
-    "number": '("-"? ([0-9] | [1-9] [0-9]*)) ("." [0-9]+)? ([eE] [-+]? [0-9]+)? space',
-    "integer": '("-"? ([0-9] | [1-9] [0-9]*)) space',
-    "string": r""" "\"" (
-        [^"\\] |
-        "\\" (["\\/bfnrt] | "u" [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F])
-      )* "\"" space """,
-    "null": '"null" space',
-}
 
 INVALID_RULE_CHARS_RE = re.compile(r"[^a-zA-Z0-9-]+")
 GRAMMAR_LITERAL_ESCAPE_RE = re.compile(r'[\r\n"]')
 GRAMMAR_LITERAL_ESCAPES = {"\r": "\\r", "\n": "\\n", '"': '\\"'}
 
+# whitespace is constrained to a single space char to prevent model "running away" in
+# whitespace. Also maybe improves generation quality?
+SPACE_RULE = '" "?'
+
+
+def _build_repetition(item_rule, min_items, max_items, separator_rule=None, item_rule_is_literal=False):
+    if not separator_rule:
+        if min_items == 0 and max_items == 1:
+            return f'{item_rule}?'
+        elif min_items == 1 and max_items is None:
+            return f'{item_rule}+'
+
+    result = ''
+
+    if min_items > 0:
+        if item_rule_is_literal and separator_rule is None:
+            result = '"' + (item_rule[1:-1] * min_items) + '"'
+        else:
+            result = (f' {separator_rule} ' if separator_rule else ' ').join([item_rule] * min_items)
+
+    def opt_repetitions(up_to_n, prefix_with_sep=False):
+        '''
+            - n=4, no sep:             '(a (a (a (a)?)?)?)?'
+            - n=4, sep=',', prefix:    '("," a ("," a ("," a ("," a)?)?)?)?'
+            - n=4, sep=',', no prefix: '(a ("," a ("," a ("," a)?)?)?)?'
+        '''
+
+        content = f'{separator_rule} {item_rule}' if prefix_with_sep and separator_rule else item_rule
+        if up_to_n == 0:
+            return ''
+        elif up_to_n == 1:
+            return f'({content})?'
+        elif separator_rule and not prefix_with_sep:
+            return f'({content} {opt_repetitions(up_to_n - 1, prefix_with_sep=True)})?'
+        else:
+            return (f'({content} ' * up_to_n).rstrip() + (')?' * up_to_n)
+
+    if min_items > 0 and max_items != min_items:
+        result += ' '
+
+    if max_items is not None:
+        result += opt_repetitions(max_items - min_items, prefix_with_sep=min_items > 0)
+    else:
+        item_operator = f'({separator_rule + " " if separator_rule else ""}{item_rule})'
+
+        if min_items == 0 and separator_rule:
+            result = f'({item_rule} {item_operator}*)?'
+        else:
+            result += f'{item_operator}*'
+
+    return result
+
+
+
+class BuiltinRule:
+    def __init__(self, content: str, deps: list = None):
+        self.content = content
+        self.deps = deps or []
+
+_up_to_15_digits = _build_repetition('[0-9]', 0, 15)
+
+PRIMITIVE_RULES = {
+    'boolean'      : BuiltinRule('("true" | "false") space', []),
+    'decimal-part' : BuiltinRule('[0-9] ' + _up_to_15_digits, []),
+    'integral-part': BuiltinRule('[0-9] | [1-9] ' + _up_to_15_digits, []),
+    'number'       : BuiltinRule('("-"? integral-part) ("." decimal-part)? ([eE] [-+]? integral-part)? space', ['integral-part', 'decimal-part']),
+    'integer'      : BuiltinRule('("-"? integral-part) space', ['integral-part']),
+    'value'        : BuiltinRule('object | array | string | number | boolean | null', ['object', 'array', 'string', 'number', 'boolean', 'null']),
+    'object'       : BuiltinRule('"{" space ( string ":" space value ("," space string ":" space value)* )? "}" space', ['string', 'value']),
+    'array'        : BuiltinRule('"[" space ( value ("," space value)* )? "]" space', ['value']),
+    'uuid'         : BuiltinRule(r'"\"" ' + ' "-" '.join('[0-9a-fA-F]' * n for n in [8, 4, 4, 4, 12]) + r' "\"" space', []),
+    'char'         : BuiltinRule(r'[^"\\] | "\\" (["\\/bfnrt] | "u" [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F])', []),
+    'string'       : BuiltinRule(r'"\"" char* "\"" space', ['char']),
+    'null'         : BuiltinRule('"null" space', []),
+}
+
+# TODO: support "uri", "email" string formats
+STRING_FORMAT_RULES = {
+    'date'            : BuiltinRule('[0-9] [0-9] [0-9] [0-9] "-" ( "0" [1-9] | "1" [0-2] ) "-" ( \"0\" [1-9] | [1-2] [0-9] | "3" [0-1] )', []),
+    'time'            : BuiltinRule('([01] [0-9] | "2" [0-3]) ":" [0-5] [0-9] ":" [0-5] [0-9] ( "." [0-9] [0-9] [0-9] )? ( "Z" | ( "+" | "-" ) ( [01] [0-9] | "2" [0-3] ) ":" [0-5] [0-9] )', []),
+    'date-time'       : BuiltinRule('date "T" time', ['date', 'time']),
+    'date-string'     : BuiltinRule('"\\"" date "\\"" space', ['date']),
+    'time-string'     : BuiltinRule('"\\"" time "\\"" space', ['time']),
+    'date-time-string': BuiltinRule('"\\"" date-time "\\"" space', ['date-time']),
+}
+
+DOTALL = '[\\U00000000-\\U0010FFFF]'
+DOT = '[^\\x0A\\x0D]'
+
+RESERVED_NAMES = set(["root", "dot", *PRIMITIVE_RULES.keys(), *STRING_FORMAT_RULES.keys()])
+
+
+NON_LITERAL_SET = set('|.()[]{}*+?')
+ESCAPED_IN_REGEXPS_BUT_NOT_IN_LITERALS = set('[]()|{}*+?')
+
+
+
 
 class SchemaConverter:
-    def __init__(self, prop_order):
+    def __init__(self, *, prop_order, allow_fetch, dotall, raw_pattern):
         self._prop_order = prop_order
-        self._rules = {"space": SPACE_RULE}
-        self._defs: Dict[str, Any] = {}
+        self._allow_fetch = allow_fetch
+        self._dotall = dotall
+        self._raw_pattern = raw_pattern
+        self._rules = {
+            'space': SPACE_RULE,
+        }
+        self._refs = {}
+        self._refs_being_resolved = set()
 
-    def _format_literal(self, literal: str):
-        escaped: str = GRAMMAR_LITERAL_ESCAPE_RE.sub(
-            lambda m: GRAMMAR_LITERAL_ESCAPES.get(m.group(0)), json.dumps(literal)
+    def _format_literal(self, literal):
+        escaped = GRAMMAR_LITERAL_ESCAPE_RE.sub(
+            lambda m: GRAMMAR_LITERAL_ESCAPES.get(m.group(0)), literal
         )
         return f'"{escaped}"'
 
-    def _add_rule(self, name: str, rule: str):
-        esc_name = INVALID_RULE_CHARS_RE.sub("-", name)
+    def not_literal(self, literal: str, dotall: bool = True, maybe_escaped_underscores = False) -> str:
+        '''
+            not_literal('a') -> '[^a]'
+            not_literal('abc') -> '([^a] | "a" ([^b] | "b" ([^c])?)?)?'
+        '''
+        assert len(literal) > 0, 'Empty literal not supported'
+        def recurse(i: int):
+            c = literal[i]
+            if maybe_escaped_underscores and c == '_':
+                yield f'[^{c}\\\\]'
+                yield ' | '
+                yield f'"\\\\"? "{c}"'
+            else:
+                yield f'[^{c}]'
+            if i < len(literal) - 1:
+                yield ' | '
+                yield self._format_literal(c)
+                yield ' ('
+                yield from recurse(i + 1)
+                yield ')?'
+
+        return ''.join(('(', *recurse(0), ')'))
+
+    def _add_rule(self, name, rule):
+        esc_name = INVALID_RULE_CHARS_RE.sub('-', name)
         if esc_name not in self._rules or self._rules[esc_name] == rule:
             key = esc_name
         else:
             i = 0
-            while f"{esc_name}{i}" in self._rules:
+            while f'{esc_name}{i}' in self._rules and self._rules[f'{esc_name}{i}'] != rule:
                 i += 1
-            key = f"{esc_name}{i}"
+            key = f'{esc_name}{i}'
         self._rules[key] = rule
         return key
 
-    def visit(self, schema: Dict[str, Any], name: str) -> str:
-        rule_name = name or "root"
+    def resolve_refs(self, schema: dict, url: str):
+        '''
+            Resolves all $ref fields in the given schema, fetching any remote schemas,
+            replacing $ref with absolute reference URL and populating self._refs with the
+            respective referenced (sub)schema dictionaries.
+        '''
+        def visit(n: dict):
+            if isinstance(n, list):
+                return [visit(x) for x in n]
+            elif isinstance(n, dict):
+                ref = n.get('$ref')
+                if ref is not None and ref not in self._refs:
+                    if ref.startswith('https://'):
+                        assert self._allow_fetch, 'Fetching remote schemas is not allowed (use --allow-fetch for force)'
+                        import requests
 
-        if "$defs" in schema:
-            # add defs to self._defs for later inlining
-            for def_name, def_schema in schema["$defs"].items():
-                self._defs[def_name] = def_schema
+                        frag_split = ref.split('#')
+                        base_url = frag_split[0]
 
-        if "oneOf" in schema or "anyOf" in schema:
-            rule = " | ".join(
-                (
-                    self.visit(alt_schema, f'{name}{"-" if name else ""}{i}')
-                    for i, alt_schema in enumerate(
-                        schema.get("oneOf") or schema["anyOf"]
-                    )
-                )
-            )
-            return self._add_rule(rule_name, rule)
+                        target = self._refs.get(base_url)
+                        if target is None:
+                            target = self.resolve_refs(requests.get(ref).json(), base_url)
+                            self._refs[base_url] = target
 
-        elif "const" in schema:
-            return self._add_rule(rule_name, self._format_literal(schema["const"]))
-
-        elif "enum" in schema:
-            rule = " | ".join((self._format_literal(v) for v in schema["enum"]))
-            return self._add_rule(rule_name, rule)
-
-        elif "$ref" in schema:
-            ref = schema["$ref"]
-            assert ref.startswith("#/$defs/"), f"Unrecognized schema: {schema}"
-            # inline $defs
-            def_name = ref[len("#/$defs/") :]
-            def_schema = self._defs[def_name]
-            return self.visit(def_schema, f'{name}{"-" if name else ""}{def_name}')
-
-
-        schema_type: Optional[str] = schema.get("type") # type: ignore
-        assert isinstance(schema_type, str), f"Unrecognized schema: {schema}"
-
-        if schema_type == "object" and "properties" in schema:
-            # TODO: `required` keyword
-            if self._prop_order:
-                prop_order = self._prop_order
-                prop_pairs = sorted(
-                    schema["properties"].items(),
-                    # sort by position in prop_order (if specified) then by key
-                    key=lambda kv: (prop_order.get(kv[0], len(prop_order)), kv[0]),
-                )
+                        if len(frag_split) == 1 or frag_split[-1] == '':
+                            return target
+                    elif ref.startswith('#/'):
+                        target = schema
+                        ref = f'{url}{ref}'
+                        n['$ref'] = ref
                     else:
-                prop_pairs = schema["properties"].items()
+                        raise ValueError(f'Unsupported ref {ref}')
 
-            rule = '"{" space'
-            for i, (prop_name, prop_schema) in enumerate(prop_pairs):
-                prop_rule_name = self.visit(
-                    prop_schema, f'{name}{"-" if name else ""}{prop_name}'
+                    for sel in ref.split('#')[-1].split('/')[1:]:
+                        assert target is not None and sel in target, f'Error resolving ref {ref}: {sel} not in {target}'
+                        target = target[sel]
+
+                    self._refs[ref] = target
+                else:
+                    for v in n.values():
+                        visit(v)
+
+            return n
+        return visit(schema)
+
+    def _generate_union_rule(self, name, alt_schemas):
+        return ' | '.join((
+            self.visit(alt_schema, f'{name}{"-" if name else "alternative-"}{i}')
+            for i, alt_schema in enumerate(alt_schemas)
+        ))
+
+    def _visit_pattern(self, pattern, name):
+        '''
+            Transforms a regular expression pattern into a GBNF rule.
+
+            Input: https://json-schema.org/understanding-json-schema/reference/regular_expressions
+            Output: https://github.com/ggerganov/llama.cpp/blob/master/grammars/README.md
+
+            Unsupported features: negative/positive lookaheads, greedy/non-greedy modifiers.
+
+            Mostly a 1:1 translation, except for {x} / {x,} / {x,y} quantifiers for which
+            we define sub-rules to keep the output lean.
+        '''
+
+        assert pattern.startswith('^') and pattern.endswith('$'), 'Pattern must start with "^" and end with "$"'
+        pattern = pattern[1:-1]
+        sub_rule_ids = {}
+
+        i = 0
+        length = len(pattern)
+
+        def to_rule(s: Tuple[str, bool]) -> str:
+            (txt, is_literal) = s
+            return "\"" + txt + "\"" if is_literal else txt
+
+        def transform() -> Tuple[str, bool]:
+            '''
+                Parse a unit at index i (advancing it), and return its string representation + whether it's a literal.
+            '''
+            nonlocal i
+            nonlocal pattern
+            nonlocal sub_rule_ids
+
+            start = i
+            # For each component of this sequence, store its string representation and whether it's a literal.
+            # We only need a flat structure here to apply repetition operators to the last item, and
+            # to merge literals at the and (we're parsing grouped ( sequences ) recursively and don't treat '|' specially
+            # (GBNF's syntax is luckily very close to regular expressions!)
+            seq: list[Tuple[str, bool]] = []
+
+            def get_dot():
+                if self._dotall:
+                    rule = DOTALL
+                else:
+                    # Accept any character... except \n and \r line break chars (\x0A and \xOD)
+                    rule = DOT
+                return self._add_rule(f'dot', rule)
+
+            def join_seq():
+                nonlocal seq
+                ret = []
+                for is_literal, g in groupby(seq, lambda x: x[1]):
+                    if is_literal:
+                        ret.append((''.join(x[0] for x in g), True))
+                    else:
+                        ret.extend(g)
+                if len(ret) == 1:
+                    return ret[0]
+                return (' '.join(to_rule(x) for x in seq), False)
+
+            while i < length:
+                c = pattern[i]
+                if c == '.':
+                    seq.append((get_dot(), False))
+                    i += 1
+                elif c == '(':
+                    i += 1
+                    if i < length:
+                        assert pattern[i] != '?', f'Unsupported pattern syntax "{pattern[i]}" at index {i} of /{pattern}/'
+                    seq.append((f'({to_rule(transform())})', False))
+                elif c == ')':
+                    i += 1
+                    assert start > 0 and pattern[start-1] == '(', f'Unbalanced parentheses; start = {start}, i = {i}, pattern = {pattern}'
+                    return join_seq()
+                elif c == '[':
+                    square_brackets = c
+                    i += 1
+                    while i < length and pattern[i] != ']':
+                        if pattern[i] == '\\':
+                            square_brackets += pattern[i:i+2]
+                            i += 2
+                        else:
+                            square_brackets += pattern[i]
+                            i += 1
+                    assert i < length, f'Unbalanced square brackets; start = {start}, i = {i}, pattern = {pattern}'
+                    square_brackets += ']'
+                    i += 1
+                    seq.append((square_brackets, False))
+                elif c == '|':
+                    seq.append(('|', False))
+                    i += 1
+                elif c in ('*', '+', '?'):
+                    seq[-1] = (to_rule(seq[-1]) + c, False)
+                    i += 1
+                elif c == '{':
+                    curly_brackets = c
+                    i += 1
+                    while i < length and pattern[i] != '}':
+                        curly_brackets += pattern[i]
+                        i += 1
+                    assert i < length, f'Unbalanced curly brackets; start = {start}, i = {i}, pattern = {pattern}'
+                    curly_brackets += '}'
+                    i += 1
+                    nums = [s.strip() for s in curly_brackets[1:-1].split(',')]
+                    min_times = 0
+                    max_times = None
+                    try:
+                        if len(nums) == 1:
+                            min_times = int(nums[0])
+                            max_times = min_times
+                        else:
+                            assert len(nums) == 2
+                            min_times = int(nums[0]) if nums[0] else 0
+                            max_times = int(nums[1]) if nums[1] else None
+                    except ValueError:
+                        raise ValueError(f'Invalid quantifier {curly_brackets} in /{pattern}/')
+
+                    (sub, sub_is_literal) = seq[-1]
+
+                    if not sub_is_literal:
+                        id = sub_rule_ids.get(sub)
+                        if id is None:
+                            id = self._add_rule(f'{name}-{len(sub_rule_ids) + 1}', sub)
+                            sub_rule_ids[sub] = id
+                        sub = id
+
+                    seq[-1] = (_build_repetition(f'"{sub}"' if sub_is_literal else sub, min_times, max_times, item_rule_is_literal=sub_is_literal), False)
+                else:
+                    literal = ''
+                    while i < length:
+                        if pattern[i] == '\\' and i < length - 1:
+                            next = pattern[i + 1]
+                            if next in ESCAPED_IN_REGEXPS_BUT_NOT_IN_LITERALS:
+                                i += 1
+                                literal += pattern[i]
+                                i += 1
+                            else:
+                                literal += pattern[i:i+2]
+                                i += 2
+                        elif pattern[i] == '"' and not self._raw_pattern:
+                            literal += '\\"'
+                            i += 1
+                        elif pattern[i] not in NON_LITERAL_SET and \
+                                (i == length - 1 or literal == '' or pattern[i+1] == '.' or pattern[i+1] not in NON_LITERAL_SET):
+                            literal += pattern[i]
+                            i += 1
+                        else:
+                            break
+                    if literal:
+                        seq.append((literal, True))
+
+            return join_seq()
+
+        return self._add_rule(
+            name,
+            to_rule(transform()) if self._raw_pattern \
+                else "\"\\\"\" " + to_rule(transform()) + " \"\\\"\" space")
+
+
+    def _resolve_ref(self, ref):
+        ref_name = ref.split('/')[-1]
+        if ref_name not in self._rules and ref not in self._refs_being_resolved:
+            self._refs_being_resolved.add(ref)
+            resolved = self._refs[ref]
+            ref_name = self.visit(resolved, ref_name)
+            self._refs_being_resolved.remove(ref)
+        return ref_name
+
+    def _generate_constant_rule(self, value):
+        return self._format_literal(json.dumps(value))
+
+    def visit(self, schema, name):
+        schema_type = schema.get('type')
+        schema_format = schema.get('format')
+        rule_name = name + '-' if name in RESERVED_NAMES else name or 'root'
+
+        if (ref := schema.get('$ref')) is not None:
+            return self._add_rule(rule_name, self._resolve_ref(ref))
+
+        elif 'oneOf' in schema or 'anyOf' in schema:
+            return self._add_rule(rule_name, self._generate_union_rule(name, schema.get('oneOf') or schema['anyOf']))
+
+        elif isinstance(schema_type, list):
+            return self._add_rule(rule_name, self._generate_union_rule(name, [{'type': t} for t in schema_type]))
+
+        elif 'const' in schema:
+            return self._add_rule(rule_name, self._generate_constant_rule(schema['const']))
+
+        elif 'enum' in schema:
+            rule = ' | '.join((self._generate_constant_rule(v) for v in schema['enum']))
+            return self._add_rule(rule_name, rule)
+
+        elif schema_type in (None, 'object') and \
+             ('properties' in schema or \
+              ('additionalProperties' in schema and schema['additionalProperties'] is not True)):
+            required = set(schema.get('required', []))
+            properties = list(schema.get('properties', {}).items())
+            return self._add_rule(rule_name, self._build_object_rule(properties, required, name, schema.get('additionalProperties')))
+
+        elif schema_type in (None, 'object') and 'allOf' in schema:
+            required = set()
+            properties = []
+            hybrid_name = name
+            def add_component(comp_schema, is_required):
+                if (ref := comp_schema.get('$ref')) is not None:
+                    comp_schema = self._refs[ref]
+
+                if 'properties' in comp_schema:
+                    for prop_name, prop_schema in comp_schema['properties'].items():
+                        properties.append((prop_name, prop_schema))
+                        if is_required:
+                            required.add(prop_name)
+
+            for t in schema['allOf']:
+                if 'anyOf' in t:
+                    for tt in t['anyOf']:
+                        add_component(tt, is_required=False)
+                else:
+                    add_component(t, is_required=True)
+
+            return self._add_rule(rule_name, self._build_object_rule(properties, required, hybrid_name, additional_properties=[]))
+
+        elif schema_type in (None, 'array') and ('items' in schema or 'prefixItems' in schema):
+            items = schema.get('items') or schema['prefixItems']
+            if isinstance(items, list):
+                return self._add_rule(
+                    rule_name,
+                    '"[" space ' +
+                    ' "," space '.join(
+                        self.visit(item, f'{name}{"-" if name else ""}tuple-{i}')
+                        for i, item in enumerate(items)) +
+                    ' "]" space')
+            else:
+                item_rule_name = self.visit(items, f'{name}{"-" if name else ""}item')
+                min_items = schema.get("minItems", 0)
+                max_items = schema.get("maxItems")
+                return self._add_rule(rule_name, '"[" space ' + _build_repetition(item_rule_name, min_items, max_items, separator_rule='"," space') + ' "]" space')
+
+        elif schema_type in (None, 'string') and 'pattern' in schema:
+            return self._visit_pattern(schema['pattern'], rule_name)
+
+        elif schema_type in (None, 'string') and re.match(r'^uuid[1-5]?$', schema_format or ''):
+            return self._add_primitive(
+                'root' if rule_name == 'root' else schema_format,
+                PRIMITIVE_RULES['uuid']
             )
-                if i > 0:
-                    rule += ' "," space'
-                rule += rf' {self._format_literal(prop_name)} space ":" space {prop_rule_name}'
+
+        elif schema_type in (None, 'string') and f'{schema_format}-string' in STRING_FORMAT_RULES:
+            prim_name = f'{schema_format}-string'
+            return self._add_rule(rule_name, self._add_primitive(prim_name, STRING_FORMAT_RULES[prim_name]))
+
+        elif schema_type == 'string' and ('minLength' in schema or 'maxLength' in schema):
+            char_rule = self._add_primitive('char', PRIMITIVE_RULES['char'])
+            min_len = schema.get('minLength', 0)
+            max_len = schema.get('maxLength')
+
+            return self._add_rule(rule_name, r'"\"" ' + _build_repetition(char_rule, min_len, max_len) + r' "\"" space')
+
+        elif (schema_type == 'object') or (len(schema) == 0):
+            return self._add_rule(rule_name, self._add_primitive('object', PRIMITIVE_RULES['object']))
+
+        else:
+            assert schema_type in PRIMITIVE_RULES, f'Unrecognized schema: {schema}'
+            # TODO: support minimum, maximum, exclusiveMinimum, exclusiveMaximum at least for zero
+            return self._add_primitive('root' if rule_name == 'root' else schema_type, PRIMITIVE_RULES[schema_type])
+
+    def _add_primitive(self, name: str, rule: BuiltinRule):
+        n = self._add_rule(name, rule.content)
+
+        for dep in rule.deps:
+            dep_rule = PRIMITIVE_RULES.get(dep) or STRING_FORMAT_RULES.get(dep)
+            assert dep_rule, f'Rule {dep} not known'
+            if dep not in self._rules:
+                self._add_primitive(dep, dep_rule)
+        return n
+
+    def _build_object_rule(self, properties: List[Tuple[str, Any]], required: Set[str], name: str, additional_properties: Union[bool, Any]):
+        prop_order = self._prop_order
+        # sort by position in prop_order (if specified) then by original order
+        sorted_props = [kv[0] for _, kv in sorted(enumerate(properties), key=lambda ikv: (prop_order.get(ikv[1][0], len(prop_order)), ikv[0]))]
+
+        prop_kv_rule_names = {}
+        for prop_name, prop_schema in properties:
+            prop_rule_name = self.visit(prop_schema, f'{name}{"-" if name else ""}{prop_name}')
+            prop_kv_rule_names[prop_name] = self._add_rule(
+                f'{name}{"-" if name else ""}{prop_name}-kv',
+                fr'{self._format_literal(json.dumps(prop_name))} space ":" space {prop_rule_name}'
+            )
+        required_props = [k for k in sorted_props if k in required]
+        optional_props = [k for k in sorted_props if k not in required]
+
+        if additional_properties == True or isinstance(additional_properties, dict):
+            sub_name = f'{name}{"-" if name else ""}additional'
+            value_rule = self.visit({} if additional_properties == True else additional_properties, f'{sub_name}-value')
+            prop_kv_rule_names["*"] = self._add_rule(
+                f'{sub_name}-kv',
+                self._add_primitive('string', PRIMITIVE_RULES['string']) + f' ":" space {value_rule}'
+            )
+            optional_props.append("*")
+
+        rule = '"{" space '
+        rule += ' "," space '.join(prop_kv_rule_names[k] for k in required_props)
+
+        if optional_props:
+            rule += ' ('
+            if required_props:
+                rule += ' "," space ( '
+
+            def get_recursive_refs(ks, first_is_optional):
+                [k, *rest] = ks
+                kv_rule_name = prop_kv_rule_names[k]
+                if k == '*':
+                    res = self._add_rule(
+                        f'{name}{"-" if name else ""}additional-kvs',
+                        f'{kv_rule_name} ( "," space ' + kv_rule_name + ' )*'
+                    )
+                elif first_is_optional:
+                    res = f'( "," space {kv_rule_name} )?'
+                else:
+                    res = kv_rule_name
+                if len(rest) > 0:
+                    res += ' ' + self._add_rule(
+                        f'{name}{"-" if name else ""}{k}-rest',
+                        get_recursive_refs(rest, first_is_optional=True)
+                    )
+                return res
+
+            rule += ' | '.join(
+                get_recursive_refs(optional_props[i:], first_is_optional=False)
+                for i in range(len(optional_props))
+            )
+            if required_props:
+                rule += ' )'
+            rule += ' )?'
+
         rule += ' "}" space'
 
-            return self._add_rule(rule_name, rule)
-
-        elif schema_type == "array" and "items" in schema:
-            # TODO `prefixItems` keyword
-            item_rule_name = self.visit(
-                schema["items"], f'{name}{"-" if name else ""}item'
-            )
-            list_item_operator = f'("," space {item_rule_name})'
-            successive_items = ""
-            min_items = schema.get("minItems", 0)
-            if min_items > 0:
-               first_item = f"({item_rule_name})"
-               successive_items = list_item_operator * (min_items - 1)
-               min_items -= 1
-            else:
-               first_item = f"({item_rule_name})?"
-            max_items = schema.get("maxItems")
-            if max_items is not None and max_items > min_items:
-                successive_items += (list_item_operator + "?") * (max_items - min_items - 1)
-            else:
-                successive_items += list_item_operator + "*"
-            rule = f'"[" space {first_item} {successive_items} "]" space'
-            return self._add_rule(rule_name, rule)
-
-        else:
-            assert schema_type in PRIMITIVE_RULES, f"Unrecognized schema: {schema}"
-            return self._add_rule(
-                "root" if rule_name == "root" else schema_type,
-                PRIMITIVE_RULES[schema_type],
-            )
+        return rule
 
     def format_grammar(self):
-        return "\n".join((f"{name} ::= {rule}" for name, rule in self._rules.items()))
-
-
+        return '\n'.join(
+            f'{name} ::= {rule}'
+            for name, rule in sorted(self._rules.items(), key=lambda kv: kv[0])
+        )
 def json_schema_to_gbnf(schema: str, prop_order: Optional[List[str]] = None):
     prop_order = prop_order or []
     schema = json.loads(schema)
     prop_order = {name: idx for idx, name in enumerate(prop_order)}
-    converter = SchemaConverter(prop_order)
+    converter = SchemaConverter(prop_order=prop_order, allow_fetch=False, dotall=False, raw_pattern=False)
+    schema = converter.resolve_refs(schema, "stdin")
     converter.visit(schema, "")
     return converter.format_grammar()

llama_cpp/server/__main__.py

@@ -59,6 +59,15 @@ def main():
             if not os.path.exists(config_file):
                 raise ValueError(f"Config file {config_file} not found!")
             with open(config_file, "rb") as f:
+                # Check if yaml file
+                if config_file.endswith(".yaml") or config_file.endswith(".yml"):
+                    import yaml
+                    import json
+
+                    config_file_settings = ConfigFileSettings.model_validate_json(
+                        json.dumps(yaml.safe_load(f))
+                    )
+                else:
                     config_file_settings = ConfigFileSettings.model_validate_json(f.read())
                 server_settings = ServerSettings.model_validate(config_file_settings)
                 model_settings = config_file_settings.models

llama_cpp/server/app.py

@@ -87,6 +87,13 @@ def get_llama_proxy():
             llama_outer_lock.release()
 
 
+_ping_message_factory = None
+
+def set_ping_message_factory(factory):
+   global  _ping_message_factory
+   _ping_message_factory = factory
+
+
 def create_app(
     settings: Settings | None = None,
     server_settings: ServerSettings | None = None,
@@ -97,6 +104,14 @@ def create_app(
         if not os.path.exists(config_file):
             raise ValueError(f"Config file {config_file} not found!")
         with open(config_file, "rb") as f:
+            # Check if yaml file
+            if config_file.endswith(".yaml") or config_file.endswith(".yml"):
+                import yaml
+
+                config_file_settings = ConfigFileSettings.model_validate_json(
+                    json.dumps(yaml.safe_load(f))
+                )
+            else:
                 config_file_settings = ConfigFileSettings.model_validate_json(f.read())
             server_settings = ServerSettings.model_validate(config_file_settings)
             model_settings = config_file_settings.models
@@ -130,6 +145,9 @@ def create_app(
     assert model_settings is not None
     set_llama_proxy(model_settings=model_settings)
 
+    if server_settings.disable_ping_events:
+        set_ping_message_factory(lambda: bytes())
+
     return app
 
 
@@ -294,6 +312,7 @@ async def create_completion(
                 iterator=iterator(),
             ),
             sep="\n",
+            ping_message_factory=_ping_message_factory,
         )
     else:
         return iterator_or_completion
@@ -462,6 +481,7 @@ async def create_chat_completion(
                 iterator=iterator(),
             ),
             sep="\n",
+            ping_message_factory=_ping_message_factory,
         )
     else:
         return iterator_or_completion

llama_cpp/server/settings.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 import multiprocessing
 
 from typing import Optional, List, Literal, Union
-from pydantic import Field
+from pydantic import Field, root_validator
 from pydantic_settings import BaseSettings
 
 import llama_cpp
@@ -67,12 +67,12 @@ class ModelSettings(BaseSettings):
     n_threads: int = Field(
         default=max(multiprocessing.cpu_count() // 2, 1),
         ge=1,
-        description="The number of threads to use.",
+        description="The number of threads to use. Use -1 for max cpu threads",
     )
     n_threads_batch: int = Field(
-        default=max(multiprocessing.cpu_count() // 2, 1),
+        default=max(multiprocessing.cpu_count(), 1),
         ge=0,
-        description="The number of threads to use when batch processing.",
+        description="The number of threads to use when batch processing. Use -1 for max cpu threads",
     )
     rope_scaling_type: int = Field(
         default=llama_cpp.LLAMA_ROPE_SCALING_TYPE_UNSPECIFIED
@@ -173,6 +173,16 @@ class ModelSettings(BaseSettings):
         default=True, description="Whether to print debug information."
     )
 
+    @root_validator(pre=True)  # pre=True to ensure this runs before any other validation
+    def set_dynamic_defaults(cls, values):
+        # If n_threads or n_threads_batch is -1, set it to multiprocessing.cpu_count()
+        cpu_count = multiprocessing.cpu_count()
+        if values.get('n_threads', 0) == -1:
+            values['n_threads'] = cpu_count
+        if values.get('n_threads_batch', 0) == -1:
+            values['n_threads_batch'] = cpu_count
+        return values
+
 
 class ServerSettings(BaseSettings):
     """Server settings used to configure the FastAPI and Uvicorn server."""
@@ -195,6 +205,10 @@ class ServerSettings(BaseSettings):
         default=True,
         description="Whether to interrupt requests when a new request is received.",
     )
+    disable_ping_events: bool = Field(
+        default=False,
+        description="Disable EventSource pings (may be needed for some clients).",
+    )
 
 
 class Settings(ServerSettings, ModelSettings):

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["scikit-build-core[pyproject]>=0.5.1"]
+requires = ["scikit-build-core[pyproject]>=0.9.2"]
 build-backend = "scikit_build_core.build"
 
 [project]
@@ -35,6 +35,7 @@ server = [
     "pydantic-settings>=2.0.1",
     "sse-starlette>=1.6.1",
     "starlette-context>=0.3.6,<0.4",
+    "PyYAML>=5.1",
 ]
 test = [
     "pytest>=7.4.0",

vendor/llama.cpp

@@ -1 +1 @@
-Subproject commit 75cd4c77292034ecec587ecb401366f57338f7c0
+Subproject commit 4e96a812b3ce7322a29a3008db2ed73d9087b176