Method insert

recipes/Python/577978_Text_Model/recipe-577978.py:120–134

(self, i, texel)

        return Group(l), Group(r)
        
    def insert(self, i, texel):
        if i == len(self):
            return Group(self.data+[texel])

        data = []
        for elem in self.data:
            n = len(elem)
            if i<0:
                data.append(elem)
            elif i>=n:
                data.append(elem)
            else:
                data.append(elem.insert(i, texel))
            i -= n
        return Group(data)


C = Characters