Function isBreakableBefore

Bcore/src/main/cpp/Dobby/tests/catch.hpp:5069–5072

  return chars.find(c) != std::string::npos;
}
inline auto isBreakableBefore(char c) -> bool {
  static std::string chars = "[({<|";
  return chars.find(c) != std::string::npos;
}
inline auto isBreakableAfter(char c) -> bool {
  static std::string chars = "])}>.,:;*+-=&/\\";
  return chars.find(c) != std::string::npos;