Is there an alternative way to index characters in text other than the one in the example below?
text.tag_add('highlightline', '1.1', '1.2')
For example, it would be useful to index them as if they were in a list or a 2D matrix. Where each row in the text corresponds to a row in the matrix and each cell of the matrix contains one character.
You can only use the line.char format for indexing the contents, along with a few variation (eg: “end”, @x,y) and modifiers like wordstart, wordstart, wordend, etc.
For the full definitive and complete definition of what is allowed, see the indicies section of the official tk text widget documentation.