Matching a whole word with leading or trailing special symbols like dollar in a string

Question

I can replace dollar signs by using Matcher.quoteReplacement. I can replace words by adding boundary characters:

from = \"\\\\b\" + from + \"\         


        

Answer 1

Matcher.quoteReplacement() is for the replacement string (to), not the regex (from). To include a string literal in the regex, use Pattern.quote():

from = Pattern.quote(from);