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37 lines
1.3 KiB
Python
37 lines
1.3 KiB
Python
# parser.py
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#
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# Copyright 2021 James Westman <james@jwestman.net>
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# SPDX-License-Identifier: LGPL-3.0-or-later
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from .errors import MultipleErrors, PrintableError
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from .parse_tree import *
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from .tokenizer import TokenType
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from .language import OBJECT_CONTENT_HOOKS, VALUE_HOOKS, Template, UI
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def parse(tokens) -> T.Tuple[UI, T.Optional[MultipleErrors], T.List[PrintableError]]:
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"""Parses a list of tokens into an abstract syntax tree."""
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ctx = ParseContext(tokens)
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AnyOf(UI).parse(ctx)
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ast_node = ctx.last_group.to_ast() if ctx.last_group else None
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errors = MultipleErrors(ctx.errors) if len(ctx.errors) else None
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warnings = ctx.warnings
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return (ast_node, errors, warnings)
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