Source code for emoji_data.utils

import sys
from typing import Iterable, Iterator, Tuple, Union

if sys.version_info < (3, 9):  # pragma: no cover
    import importlib_resources  # type: ignore[import-not-found]
else:  # pragma: no cover
    import importlib.resources as importlib_resources


__all__ = ["emoji_data_lines", "code_points_to_string", "code_point_to_regex"]




def emoji_data_lines(data_file: str) -> Iterator[Tuple[str, str]]:
    with importlib_resources.files(__package__).joinpath("data").joinpath(data_file).open(encoding="utf-8") as fp:
        for line in fp:
            line = line.strip()
            if not line or line[0] in "#;":
                continue
            parts = [s.strip() for s in line.split("#", 1)]
            content = parts[0]
            try:
                comment = parts[1]
            except IndexError:
                comment = ""
            yield content, comment





def code_points_to_string(code_points: Union[int, str, Iterable[Union[int, str]]]) -> str:
    if isinstance(code_points, str):
        return "".join(chr(int(s, 16)) for s in code_points.split())
    if isinstance(code_points, Iterable):
        return "".join(chr(int(n, 16)) if isinstance(n, str) else chr(n) for n in code_points)
    return chr(code_points)





def code_point_to_regex(code_point: int) -> str:
    return rf"\U{code_point:08X}" if code_point > 0xFFFF else rf"\u{code_point:04X}"