Function _read_terminfo_file

Lib/_pyrepl/terminfo.py:133–154

Find and read terminfo file for given terminal name. Terminfo files are stored in directories using the first character of the terminal name as a subdirectory.

(terminal_name: str)

def _read_terminfo_file(terminal_name: str) -> bytes:
    """Find and read terminfo file for given terminal name.

    Terminfo files are stored in directories using the first character
    of the terminal name as a subdirectory.
    """
    _validate_terminal_name_or_raise(terminal_name)
    first_char = terminal_name[0].lower()
    filename = terminal_name

    for directory in _get_terminfo_dirs():
        path = directory / first_char / filename
        if path.is_file():
            return path.read_bytes()

        # Try with hex encoding of first char (for special chars)
        hex_dir = "%02x" % ord(first_char)
        path = directory / hex_dir / filename
        if path.is_file():
            return path.read_bytes()

    raise FileNotFoundError(errno.ENOENT, os.strerror(errno.ENOENT), filename)


# Hard-coded terminal capabilities for common terminals