fcppt::parse::basic_char_set< Ch > Class Template Reference

Detailed Description

template<typename Ch>
class fcppt::parse::basic_char_set< Ch >

Parses a set of characters and returns which one has matched.

For the character set S, this parser returns c if c is the next input character and c is in S. Otherwise, an error is returned.

Note that instead of using basic_char_set{c_1,...,c_n}, one could also use P = basic_char{c_1} | ... | basic_char{c_n}. However, basic_char_set is more efficient, since it looks up the next character in a hash map, whereas P would first try to match against c_1, then c_2, and so on.

Inheritance diagram for fcppt::parse::basic_char_set< Ch >:

Public Types
using	char_set_type = fcppt::parse::basic_char_set_container<Ch>
using	result_type = Ch

Public Member Functions
	basic_char_set (std::initializer_list< Ch > const &)
	basic_char_set (char_set_type &&)
template<typename Skipper >
fcppt::parse::result< Ch, result_type >	parse (fcppt::reference< fcppt::parse::basic_stream< Ch > >, Skipper const &) const
char_set_type const &	chars () const

Member Typedef Documentation

char_set_type

template<typename Ch >

using fcppt::parse::basic_char_set< Ch >::char_set_type = fcppt::parse::basic_char_set_container<Ch>

result_type

template<typename Ch >

using fcppt::parse::basic_char_set< Ch >::result_type = Ch

Constructor & Destructor Documentation

basic_char_set() [1/2]

template<typename Ch >

fcppt::parse::basic_char_set< Ch >::basic_char_set

(

std::initializer_list< Ch > const &

)

basic_char_set() [2/2]

template<typename Ch >

fcppt::parse::basic_char_set< Ch >::basic_char_set ( char_set_type && )

explicit

Member Function Documentation

chars()

template<typename Ch >

char_set_type const & fcppt::parse::basic_char_set< Ch >::chars ( ) const

nodiscard

parse()

template<typename Ch >

template<typename Skipper >

fcppt::parse::result< Ch, result_type > fcppt::parse::basic_char_set< Ch >::parse ( fcppt::reference< fcppt::parse::basic_stream< Ch > > , Skipper const &  ) const

nodiscard