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High-level description

This code provides a Sphinx extension that customizes the parsing of the “Returns” section in NumPy-style docstrings. It specifically formats the return values to include hyperlinks to their types using the :class: role.

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References

This code references the NumpyDocstring class from the sphinx.ext.napoleon module.

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Symbols

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process_return

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Description

This function iterates through a list of lines (presumably from a docstring’s “Returns” section) and reformats lines that match a specific pattern.

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Inputs

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Outputs

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Internal Logic

  1. Iterates through each line in the input lines.
  2. Attempts to match the line with the regular expression r"(?P<param>\w+)\s+:\s+(?P<type>[\w.]+)". This pattern captures a “parameter” and its “type” separated by a colon.
  3. If a match is found:
    • It reformats the line to f'-{m["param"]} (:class:~)', which creates a hyperlink for the type using the :class: role.
  4. If no match is found, it yields the original line.

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scanpy_parse_returns_section

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Description

This function overrides the _parse_returns_section method of the NumpyDocstring class. It processes the “Returns” section of a docstring to format return values with hyperlinks to their types.

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Inputs

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Outputs

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Internal Logic

  1. Calls process_return to reformat the lines of the “Returns” section.
  2. Formats the processed lines using _format_block with “:returns: ” as the prefix.
  3. Appends an empty line if the formatted lines are not empty.
  4. Returns the formatted lines.

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setup

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Description

This function is the entry point for the Sphinx extension. It modifies the behavior of the NumpyDocstring class to use the custom scanpy_parse_returns_section method.

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Inputs

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Internal Logic

Sets the _parse_returns_section attribute of the NumpyDocstring class to the custom scanpy_parse_returns_section function.

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Dependencies

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TODOs