Class LarkOptions

python/ccxt/static_dependencies/lark/lark.py:47–232

Specifies the options for Lark

    always_accept: Iterable[str] = ()

class LarkOptions(Serialize):
    """Specifies the options for Lark

    """

    start: List[str]
    debug: bool
    strict: bool
    transformer: 'Optional[Transformer]'
    propagate_positions: Union[bool, str]
    maybe_placeholders: bool
    cache: Union[bool, str]
    regex: bool
    g_regex_flags: int
    keep_all_tokens: bool
    tree_class: Optional[Callable[[str, List], Any]]
    parser: _ParserArgType
    lexer: _LexerArgType
    ambiguity: 'Literal["auto", "resolve", "explicit", "forest"]'
    postlex: Optional[PostLex]
    priority: 'Optional[Literal["auto", "normal", "invert"]]'
    lexer_callbacks: Dict[str, Callable[[Token], Token]]
    use_bytes: bool
    ordered_sets: bool
    edit_terminals: Optional[Callable[[TerminalDef], TerminalDef]]
    import_paths: 'List[Union[str, Callable[[Union[None, str, PackageResource], str], Tuple[str, str]]]]'
    source_path: Optional[str]

    OPTIONS_DOC = r"""
    **===  General Options  ===**

    start
            The start symbol. Either a string, or a list of strings for multiple possible starts (Default: "start")
    debug
            Display debug information and extra warnings. Use only when debugging (Default: ``False``)
            When used with Earley, it generates a forest graph as "sppf.png", if 'dot' is installed.
    strict
            Throw an exception on any potential ambiguity, including shift/reduce conflicts, and regex collisions.
    transformer
            Applies the transformer to every parse tree (equivalent to applying it after the parse, but faster)
    propagate_positions
            Propagates positional attributes into the 'meta' attribute of all tree branches.
            Sets attributes: (line, column, end_line, end_column, start_pos, end_pos,
                              container_line, container_column, container_end_line, container_end_column)
            Accepts ``False``, ``True``, or a callable, which will filter which nodes to ignore when propagating.
    maybe_placeholders
            When ``True``, the ``[]`` operator returns ``None`` when not matched.
            When ``False``,  ``[]`` behaves like the ``?`` operator, and returns no value at all.
            (default= ``True``)
    cache
            Cache the results of the Lark grammar analysis, for x2 to x3 faster loading. LALR only for now.

            - When ``False``, does nothing (default)
            - When ``True``, caches to a temporary file in the local directory
            - When given a string, caches to the path pointed by the string
    regex
            When True, uses the ``regex`` module instead of the stdlib ``re``.
    g_regex_flags