...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::log::expressions::char_decorator_terminal
// In header: <boost/log/expressions/formatters/char_decorator.hpp> template<typename SubactorT, typename ImplT> class char_decorator_terminal { public: // types typedef ImplT impl_type; // Implementation type. typedef impl_type::char_type char_type; // Character type. typedef impl_type::string_type string_type; // String type. typedef basic_formatting_ostream< char_type > stream_type; // Stream type. typedef SubactorT subactor_type; // Adopted actor type. typedef string_type result_type; // Result type definition. // construct/copy/destruct char_decorator_terminal(subactor_type const &, impl_type const &); char_decorator_terminal(char_decorator_terminal const &); char_decorator_terminal() = delete; // public member functions subactor_type const & get_subactor() const; impl_type const & get_impl() const; template<typename ContextT> result_type operator()(ContextT const &); template<typename ContextT> result_type operator()(ContextT const &) const; };
Character decorator terminal class. This formatter allows to modify strings generated by other formatters on character level. The most obvious application of decorators is replacing a certain set of characters with decorated equivalents to satisfy requirements of text-based sinks.
The char_decorator_terminal
class aggregates the formatter being decorated, and a set of string pairs that are used as decorations. All decorations are applied sequentially. The char_decorator_terminal
class is a formatter itself, so it can be used to construct more complex formatters, including nesting decorators.
char_decorator_terminal
public
construct/copy/destructchar_decorator_terminal(subactor_type const & sub, impl_type const & impl);
Initializing constructor.
char_decorator_terminal(char_decorator_terminal const & that);
Copy constructor
char_decorator_terminal() = delete;
char_decorator_terminal
public member functionssubactor_type const & get_subactor() const;
Returns: |
Adopted subactor |
impl_type const & get_impl() const;
Returns: |
Implementation |
template<typename ContextT> result_type operator()(ContextT const & ctx);
Invokation operator
template<typename ContextT> result_type operator()(ContextT const & ctx) const;
Invokation operator