| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2021 Vinnie Falco (vinnie dot falco at gmail dot com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/boostorg/url | ||
| 8 | // | ||
| 9 | |||
| 10 | #ifndef BOOST_URL_GRAMMAR_ALNUM_CHARS_HPP | ||
| 11 | #define BOOST_URL_GRAMMAR_ALNUM_CHARS_HPP | ||
| 12 | |||
| 13 | #include <boost/url/detail/config.hpp> | ||
| 14 | #include <boost/url/grammar/detail/charset.hpp> | ||
| 15 | |||
| 16 | namespace boost { | ||
| 17 | namespace urls { | ||
| 18 | namespace grammar { | ||
| 19 | |||
| 20 | /** The set of letters and digits | ||
| 21 | |||
| 22 | @par Example | ||
| 23 | Character sets are used with rules and the | ||
| 24 | functions @ref find_if and @ref find_if_not. | ||
| 25 | @code | ||
| 26 | system::result< core::string_view > = parse( "Johnny42", token_rule( alnumchars ) ); | ||
| 27 | @endcode | ||
| 28 | |||
| 29 | @par BNF | ||
| 30 | @code | ||
| 31 | ALNUM = ALPHA / DIGIT | ||
| 32 | |||
| 33 | ALPHA = %x41-5A / %x61-7A | ||
| 34 | ; A-Z / a-z | ||
| 35 | |||
| 36 | DIGIT = %x30-39 | ||
| 37 | ; 0-9 | ||
| 38 | @endcode | ||
| 39 | |||
| 40 | @par Specification | ||
| 41 | @li <a href="https://datatracker.ietf.org/doc/html/rfc5234#appendix-B.1" | ||
| 42 | >B.1. Core Rules (rfc5234)</a> | ||
| 43 | |||
| 44 | @see | ||
| 45 | @ref find_if, | ||
| 46 | @ref find_if_not, | ||
| 47 | @ref parse, | ||
| 48 | @ref token_rule. | ||
| 49 | */ | ||
| 50 | #ifdef BOOST_URL_DOCS | ||
| 51 | constexpr __implementation_defined__ alnum_chars; | ||
| 52 | #else | ||
| 53 | namespace implementation_defined { | ||
| 54 | struct alnum_chars_t | ||
| 55 | { | ||
| 56 | constexpr | ||
| 57 | bool | ||
| 58 | 5496 | operator()(char c) const noexcept | |
| 59 | { | ||
| 60 | return | ||
| 61 |
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5496 | (c >= '0' && c <= '9') || |
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| 64 | } | ||
| 65 | |||
| 66 | #ifdef BOOST_URL_USE_SSE2 | ||
| 67 | char const* | ||
| 68 | 256 | find_if( | |
| 69 | char const* first, | ||
| 70 | char const* last) const noexcept | ||
| 71 | { | ||
| 72 | 256 | return detail::find_if_pred( | |
| 73 | 256 | *this, first, last); | |
| 74 | } | ||
| 75 | |||
| 76 | char const* | ||
| 77 | 269 | find_if_not( | |
| 78 | char const* first, | ||
| 79 | char const* last) const noexcept | ||
| 80 | { | ||
| 81 | 269 | return detail::find_if_not_pred( | |
| 82 | 269 | *this, first, last); | |
| 83 | } | ||
| 84 | #endif | ||
| 85 | }; | ||
| 86 | } // implementation_defined | ||
| 87 | |||
| 88 | /** The set of letters and digits | ||
| 89 | |||
| 90 | @par Example | ||
| 91 | Character sets are used with rules and the | ||
| 92 | functions @ref find_if and @ref find_if_not. | ||
| 93 | @code | ||
| 94 | system::result< core::string_view > = parse( "Johnny42", token_rule( alnumchars ) ); | ||
| 95 | @endcode | ||
| 96 | |||
| 97 | @par BNF | ||
| 98 | @code | ||
| 99 | ALNUM = ALPHA / DIGIT | ||
| 100 | |||
| 101 | ALPHA = %x41-5A / %x61-7A | ||
| 102 | ; A-Z / a-z | ||
| 103 | |||
| 104 | DIGIT = %x30-39 | ||
| 105 | ; 0-9 | ||
| 106 | @endcode | ||
| 107 | |||
| 108 | @par Specification | ||
| 109 | @li <a href="https://datatracker.ietf.org/doc/html/rfc5234#appendix-B.1" | ||
| 110 | >B.1. Core Rules (rfc5234)</a> | ||
| 111 | |||
| 112 | @see | ||
| 113 | @ref find_if, | ||
| 114 | @ref find_if_not, | ||
| 115 | @ref parse, | ||
| 116 | @ref token_rule. | ||
| 117 | */ | ||
| 118 | constexpr implementation_defined::alnum_chars_t alnum_chars{}; | ||
| 119 | #endif | ||
| 120 | |||
| 121 | } // grammar | ||
| 122 | } // urls | ||
| 123 | } // boost | ||
| 124 | |||
| 125 | #endif | ||
| 126 |