url/grammar/all_chars.hpp

0001 //
0002 // Copyright (c) 2021 Vinnie Falco (vinnie dot falco at gmail dot com)
0003 //
0004 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0005 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 //
0007 // Official repository: https://github.com/boostorg/url
0008 //
0009
0010 #ifndef BOOST_URL_GRAMMAR_ALL_CHARS_HPP
0011 #define BOOST_URL_GRAMMAR_ALL_CHARS_HPP
0012
0013 #include <boost/url/detail/config.hpp>
0014 #include <boost/url/grammar/detail/charset.hpp>
0015
0016 namespace boost {
0017 namespace urls {
0018 namespace grammar {
0019
0020 /** The set of all characters
0021
0022     @par Example
0023     Character sets are used with rules and the
0024     functions @ref find_if and @ref find_if_not.
0025     @code
0026     system::result< core::string_view > rv = parse( "JohnDoe", token_rule( all_chars ) );
0027     @endcode
0028
0029     @par BNF
0030     @code
0031     ALL       = %x00-FF
0032     @endcode
0033
0034     @see
0035         @ref find_if,
0036         @ref find_if_not,
0037         @ref parse,
0038         @ref token_rule.
0039 */
0040 #ifdef BOOST_URL_DOCS
0041 constexpr __implementation_defined__ all_chars;
0042 #else
0043 namespace implementation_defined
0044 {
0045 struct all_chars_t
0046 {
0047     constexpr
0048     all_chars_t() noexcept = default;
0049
0050     constexpr
0051     bool
0052     operator()(char) const noexcept
0053     {
0054         return true;
0055     }
0056
0057 #ifdef BOOST_URL_USE_SSE2
0058     char const*
0059     find_if(
0060         char const* first,
0061         char const* last) const noexcept
0062     {
0063         return detail::find_if_pred(
0064             *this, first, last);
0065     }
0066
0067     char const*
0068     find_if_not(
0069         char const* first,
0070         char const* last) const noexcept
0071     {
0072         return detail::find_if_not_pred(
0073             *this, first, last);
0074     }
0075 #endif
0076 };
0077 } // implementation_defined
0078
0079 /** The set of all characters
0080
0081     @par Example
0082     Character sets are used with rules and the
0083     functions @ref find_if and @ref find_if_not.
0084     @code
0085     system::result< core::string_view > rv = parse( "JohnDoe", token_rule( all_chars ) );
0086     @endcode
0087
0088     @par BNF
0089     @code
0090     ALL       = %x00-FF
0091     @endcode
0092
0093     @see
0094         @ref find_if,
0095         @ref find_if_not,
0096         @ref parse,
0097         @ref token_rule.
0098 */
0099 BOOST_INLINE_VARIABLE constexpr implementation_defined::all_chars_t all_chars{};
0100 #endif
0101
0102 } // grammar
0103 } // urls
0104 } // boost
0105
0106 #endif