static int findUnnecessaryTextBlockEscapes(String text, int start, int end) {
    boolean slash = false;
    boolean ws = false;
    int doubleQuotes = 0;
    for (int i = start; i < end; i++) {
      final char ch = text.charAt(i);
      if (ch == '\\') slash = !slash;
      else if (ch == ' ' || ch == '\t') ws = true;
      else {
        if (slash) {
          if (ch == 'n') {
            if (!ws) return i - 1;
          }
          else if (ch == '\'') {
            return i - 1;
          }
          else if (ch == '"' && doubleQuotes < 2) {
            if (i == end - 1) return -1;
            if (i == end - 2) return i - 1;
            if (i < end - 2 && text.charAt(i + 1) == '"') {
              if (doubleQuotes != 1 && text.charAt(i + 2) != '"') return i - 1;
            }
            else {
              return i - 1;
            }
          }
          doubleQuotes = 0;
        }
        else if (ch == '"') doubleQuotes++;
        else doubleQuotes = 0;
        slash = false;
        ws = false;
      }
    }
    return -1;
  }
static int findUnnecessaryTextBlockEscapes(String text, int start, int end)