Method push_back

lib/Epub/Epub/css/CssParser.cpp:22–26

  size_t len = 0;

  void push_back(char c) {
    if (len < CAPACITY - 1) {
      data[len++] = c;
    }
  }

  void clear() { len = 0; }
  bool empty() const { return len == 0; }