ansi.py 文件源码

def __call__(self, input: Any, *styles, reset: bool=True, apply: bool=True):
        """
        Styles text with ANSI styles and returns the new string.

        By default the styling is cleared at the end of the string, this can be prevented with``reset=False``.

        Examples::

            print(sformat('Hello World!', sformat.green))
            print(sformat('ATTENTION!', sformat.bg_magenta))
            print(sformat('Some things', sformat.reverse, sformat.bold))

        :param input: the object to style with ansi codes.
        :param *styles: zero or more styles to apply to the text, should be either style instances or strings
                        matching style names.
        :param reset: if False the ansi reset code is not appended to the end of the string
        :param: apply: if False no ansi codes are applied
        """
        text = str(input)
        if not apply:
            return text
        codes = []
        for s in styles:
            # raw ints are allowed
            if not isinstance(s, self.__class__) and not isinstance(s, int):
                try:
                    s = self.styles[s]
                except KeyError:
                    raise ValueError('invalid style "{}"'.format(s))
            codes.append(str(s.value))

        if codes:
            r = _ansi_template.format(';'.join(codes)) + text
        else:
            r = text

        if reset:
            r += _ansi_template.format(self.reset)
        return r