public String substitute(Substitution substitution) {
MatchResult matchResult = new JdkMatchResult(internalMatcher);
StringBuffer buffer = new StringBuffer();
while (internalMatcher.find()) {
internalMatcher.appendReplacement(buffer, "");
substitution.handleMatch(buffer, matchResult);
}
internalMatcher.appendTail(buffer);
return buffer.toString();
}
