The pair of characters {} was intended to be used for tagging replacement
strings so you could do complex search/replace strings that used {xxx} to
delimit the strings … I never got a clear explanation of how the tags
were supposed to be parsed, and the implementation of the search function
didn't include code for the tags except to just ignore them. Never knew
anyone was using {} in filenames … likely for the next ARP release we
will either implement the full use of tags, or we'll just treat the tag
characters as regular ASCII- …cheath