Matcher.appendReplacement with literal text

Question

I am using Matcher.appendReplacement() and it worked great until my replacement string had a $2 in it:

Note that backslashes ( \\ ) and dollar signs

Answer 1

I got it to work with the following, but I like Tom Hawtin's solution better :-)

private static Pattern escapePattern = Pattern.compile("\\$|\\\\");
replacement = escapePattern.matcher(replacement).replaceAll("\\\\$0");
matcher.appendReplacement(stringbuffer, replacement);

Tom's solution:

matcher.appendReplacement(stringbuffer, Matcher.quoteReplacement(replacement));