Parses the given source to a model represented as an AST.
How to use the model is explained more thoroughly in the general
documentation of the :mod:`robot.parsing` module.
:param source: The source where to read the data. Can be a path to
a source file as a string or as ``pathlib.Path`` object, an already
opened file object, or Unicode text containing the date directly.
Source files must be UTF-8 encoded.
:param data_only: When ``False`` (default), returns all tokens. When set
to ``True``, omits separators, comments, continuation markers, and
other non-data tokens. Model like this cannot be saved back to
file system.
:param curdir: Directory where the source file exists. This path is used
to set the value of the built-in ``${CURDIR}`` variable during parsing.
When not given, the variable is left as-is. Should only be given
only if the model will be executed afterwards. If the model is saved
back to disk, resolving ``${CURDIR}`` is typically not a good idea.
:param lang: Additional languages to be supported during parsing.
Can be a string matching any of the supported language codes or names,
an initialized :class:`~robot.conf.languages.Language` subsclass,
a list containing such strings or instances, or a
:class:`~robot.conf.languages.Languages` instance.
Use :func:`get_resource_model` or :func:`get_init_model` when parsing
resource or suite initialization files, respectively.
Definition at line 49 of file parser.py.