Allow user to format a specific substring.

[AdamMc331]

Rather than limited to formatting spans by index, allow the user to format a certain substring.

[Mauker1]

You could use regex for that.

[AdamMc331]

Yeah. Since the SpannableString spans text based on Index, I'd have to write a method to determine the start and end index of the substring, for each occurence it appears.