dap4/d4core/src/main/java/dap4/core/util/Escape.java
static public String
    backslashUnescape(String s)
    {
        StringBuilder clear = new StringBuilder();
        for(int i = 0; i < s.length(); ) {
            char c = s.charAt(i++);
            if(c == '\\') {
                c = s.charAt(i++);
                switch (c) {
                case 'r':
                    c = '\r';
                    break;
                case 'n':
                    c = '\n';
                    break;
                case 't':
                    c = '\t';
                    break;
                case 'f':
                    c = '\f';
                    break;
                default:
                    break;
                }
                clear.append(c);
            } else
                clear.append(c);
        }
        return clear.toString();
    }
static public String
    backslashUnescape(String s)
    {
        StringBuilder clear = new StringBuilder();
        for(int i = 0; i < s.length(); ) {
            char c = s.charAt(i++);
            if(c == '\\') {
                c = s.charAt(i++);
                switch (c) {
                case 'r':
                    c = '\r';
                    break;
                case 'n':
                    c = '\n';
                    break;
                case 't':
                    c = '\t';
                    break;
                case 'f':
                    c = '\f';
                    break;
                default:
                    break;
                }
                clear.append(c);
            } else
                clear.append(c);
        }
        return clear.toString();
    }
Remove backslashed characters in a string