If I wanted to perform a search and replace on a string where I need to use grouping functionality, what is the best approach? There doesn't seem to be any information available on how to do this. For instance, given a string with a mix of lowercase characters and other symbols, I'd like to convert this to string where the lowercase alpha characters have been replaced with uppercase alpha characters. Since Pattern and Match from Java are not allowed, what would be the best approach? Thanks for any help.
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