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doc_utils.py 1.32 KB
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# Copyright 2024 The HuggingFace Team. All rights reserved.
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#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Doc utilities: Utilities related to documentation
"""
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import re


def replace_example_docstring(example_docstring):
    def docstring_decorator(fn):
        func_doc = fn.__doc__
        lines = func_doc.split("\n")
        i = 0
        while i < len(lines) and re.search(r"^\s*Examples?:\s*$", lines[i]) is None:
            i += 1
        if i < len(lines):
            lines[i] = example_docstring
            func_doc = "\n".join(lines)
        else:
            raise ValueError(
                f"The function {fn} should have an empty 'Examples:' in its docstring as placeholder, "
                f"current docstring is:\n{func_doc}"
            )
        fn.__doc__ = func_doc
        return fn

    return docstring_decorator