| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.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_DETAIL_IMPL_REPLACEMENT_FIELD_RULE_IPP | ||
| 11 | #define BOOST_URL_DETAIL_IMPL_REPLACEMENT_FIELD_RULE_IPP | ||
| 12 | |||
| 13 | #include <boost/url/detail/config.hpp> | ||
| 14 | #include <boost/url/detail/replacement_field_rule.hpp> | ||
| 15 | #include <boost/url/grammar/alnum_chars.hpp> | ||
| 16 | #include <boost/url/grammar/alpha_chars.hpp> | ||
| 17 | #include <boost/url/grammar/delim_rule.hpp> | ||
| 18 | #include <boost/url/grammar/lut_chars.hpp> | ||
| 19 | #include <boost/url/grammar/optional_rule.hpp> | ||
| 20 | #include <boost/url/grammar/parse.hpp> | ||
| 21 | #include <boost/url/grammar/token_rule.hpp> | ||
| 22 | #include <boost/url/grammar/tuple_rule.hpp> | ||
| 23 | #include <boost/url/grammar/vchars.hpp> | ||
| 24 | |||
| 25 | namespace boost { | ||
| 26 | namespace urls { | ||
| 27 | namespace detail { | ||
| 28 | |||
| 29 | auto | ||
| 30 | 673 | replacement_field_rule_t:: | |
| 31 | parse( | ||
| 32 | char const*& it, | ||
| 33 | char const* const end) const noexcept -> | ||
| 34 | system::result<value_type> | ||
| 35 | { | ||
| 36 | static constexpr auto replacement_field_rules = | ||
| 37 | grammar::tuple_rule( | ||
| 38 | // open | ||
| 39 | grammar::squelch( | ||
| 40 | grammar::delim_rule('{')), | ||
| 41 | // id | ||
| 42 | grammar::optional_rule(arg_id_rule), | ||
| 43 | // format options | ||
| 44 | grammar::optional_rule( | ||
| 45 | grammar::tuple_rule( | ||
| 46 | grammar::squelch( | ||
| 47 | grammar::delim_rule(':')), | ||
| 48 | format_spec_rule)), | ||
| 49 | // close | ||
| 50 | grammar::squelch( | ||
| 51 | grammar::delim_rule('}'))); | ||
| 52 | 673 | auto it0 = it; | |
| 53 | 1346 | auto rv = grammar::parse(it, end, replacement_field_rules); | |
| 54 |
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673 | if (!rv) |
| 55 | { | ||
| 56 | 328 | BOOST_URL_RETURN_EC( | |
| 57 | grammar::error::mismatch); | ||
| 58 | } | ||
| 59 | 345 | return core::string_view(it0, it); | |
| 60 | } | ||
| 61 | |||
| 62 | auto | ||
| 63 | 720 | identifier_rule_t:: | |
| 64 | parse( | ||
| 65 | char const*& it, | ||
| 66 | char const* const end) const noexcept | ||
| 67 | -> system::result<value_type> | ||
| 68 | { | ||
| 69 | static constexpr auto identifier_rules = | ||
| 70 | grammar::tuple_rule( | ||
| 71 | grammar::delim_rule( | ||
| 72 | grammar::alpha_chars + | ||
| 73 | grammar::lut_chars('_')), | ||
| 74 | grammar::optional_rule( | ||
| 75 | grammar::token_rule( | ||
| 76 | grammar::alnum_chars + | ||
| 77 | grammar::lut_chars('_')))); | ||
| 78 | 720 | char const* it0 = it; | |
| 79 | 1440 | auto rv = grammar::parse(it, end, identifier_rules); | |
| 80 |
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720 | if (!rv) |
| 81 | { | ||
| 82 | 349 | BOOST_URL_RETURN_EC( | |
| 83 | grammar::error::mismatch); | ||
| 84 | } | ||
| 85 | 371 | return core::string_view(it0, it); | |
| 86 | } | ||
| 87 | |||
| 88 | auto | ||
| 89 | 86 | format_spec_rule_t:: | |
| 90 | parse( | ||
| 91 | char const*& it, | ||
| 92 | char const* const end) const noexcept | ||
| 93 | -> system::result<value_type> | ||
| 94 | { | ||
| 95 |
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86 | if (it == end) |
| 96 | 2 | return {}; | |
| 97 | |||
| 98 | // any tokens allowed in fmt specs | ||
| 99 | static constexpr auto fmt_specs_token_rule = | ||
| 100 | grammar::optional_rule( | ||
| 101 | grammar::token_rule( | ||
| 102 | grammar::vchars + | ||
| 103 | grammar::lut_chars(' ') | ||
| 104 | - "{}")); | ||
| 105 | |||
| 106 | // internal ids in the fmt specs | ||
| 107 | // "{" [arg_id] "}" | ||
| 108 | static constexpr auto internal_id_rule = | ||
| 109 | grammar::tuple_rule( | ||
| 110 | grammar::squelch( | ||
| 111 | grammar::delim_rule('{')), | ||
| 112 | grammar::optional_rule( | ||
| 113 | arg_id_rule), | ||
| 114 | grammar::squelch( | ||
| 115 | grammar::delim_rule('}'))); | ||
| 116 | |||
| 117 | 84 | auto start = it; | |
| 118 | // consume fmt_spec chars | ||
| 119 |
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112 | while (grammar::parse(it, end, fmt_specs_token_rule)) |
| 120 | { | ||
| 121 | 112 | auto it0 = it; | |
| 122 | // consume internal id | ||
| 123 |
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112 | if (!grammar::parse(it, end, internal_id_rule)) |
| 124 | { | ||
| 125 | // rewind | ||
| 126 | 84 | it = it0; | |
| 127 | 84 | break; | |
| 128 | } | ||
| 129 | } | ||
| 130 | |||
| 131 | 84 | return core::string_view(start, it); | |
| 132 | } | ||
| 133 | |||
| 134 | } // detail | ||
| 135 | } // urls | ||
| 136 | } // boost | ||
| 137 | |||
| 138 | #endif | ||
| 139 |