Capitalization of index entries

[Djones9976]

I completed a manuscript for a book making entries for words I wanted to index using the command \index{xxxxx} or \index{Xxxxx} if I wanted to capitalize the word in the index.  Now I find that the generally accepted rule is to capitalize all words whether they are capitalized in the text or not.   Is there a way that I can correct all my \index{xxxxx} entries to read \index{Xxxxx} without changing them one by one?
Many thanks.
D. W. Jones
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://tug.org/pipermail/texhax/attachments/20200315/3da88d73/attachment.html>