Method insert

recipes/Python/577978_Text_Model/recipe-577978.py:59–64

(self, i, texel)

        return Group([l, c, r])
        
    def insert(self, i, texel):
        if isinstance(texel, Characters) and texel.style is self.style:
            text = self.data[:i]+texel.data+self.data[i:]
            return Characters(text, self.style)
        a, b = self.split(i)
        return Group([a, texel, b])