def start_of_paragraph(self, count=1, before=False):
        def match_func(text):
            return not text or text.isspace()

        line_index = self.find_previous_matching_line(match_func=match_func, count=count)

        if line_index:
            add = 0 if before else 1
            return min(0, self.get_cursor_up_position(count=-line_index) + add)
        else:
            return -self.cursor_position
Return the start of the current paragraph. (Relative cursor position.)
dataset/ETHPy150Open jonathanslenders/python-prompt-toolkit/prompt_toolkit/document.py/Document.start_of_paragraph