Replace substring of NSAttributedString with another NSAttributedString

  1. Convert your attributed string into an instance of NSMutableAttributedString.

  2. The mutable attributed string has a mutableString property. According to the documentation:

    “The receiver tracks changes to this string and keeps its attribute mappings up to date.”

    So you can use the resulting mutable string to execute the replacement with replaceOccurrencesOfString:withString:options:range:.

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