Added thirdparty: boost library

2026-08-17 20:58:11 +00:00 · 2024-01-06 19:55:56 +02:00
parent bf49f439e1
commit bccd1e7051
15683 changed files with 3239840 additions and 0 deletions
@@ -0,0 +1,127 @@
+/*=============================================================================
+    Copyright (c) 2001-2014 Joel de Guzman
+
+    Distributed under the Boost Software License, Version 1.0. (See accompanying
+    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+==============================================================================*/
+#if !defined(BOOST_SPIRIT_X3_CHAR_SET_OCT_12_2014_1051AM)
+#define BOOST_SPIRIT_X3_CHAR_SET_OCT_12_2014_1051AM
+
+#include <boost/spirit/home/x3/char/char_parser.hpp>
+#include <boost/spirit/home/x3/char/detail/cast_char.hpp>
+#include <boost/spirit/home/x3/support/traits/string_traits.hpp>
+#include <boost/spirit/home/x3/support/utility/utf8.hpp>
+#include <boost/spirit/home/x3/support/no_case.hpp>
+#include <boost/spirit/home/support/char_set/basic_chset.hpp>
+
+#include <boost/type_traits/is_same.hpp>
+
+namespace boost { namespace spirit { namespace x3
+{
+    ///////////////////////////////////////////////////////////////////////////
+    // Parser for a character range
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Encoding, typename Attribute = typename Encoding::char_type>
+    struct char_range
+      : char_parser< char_range<Encoding, Attribute> >
+    {
+
+        typedef typename Encoding::char_type char_type;
+        typedef Encoding encoding;
+        typedef Attribute attribute_type;
+        static bool const has_attribute =
+            !is_same<unused_type, attribute_type>::value;
+
+
+        constexpr char_range(char_type from_, char_type to_)
+          : from(from_), to(to_) {}
+
+        template <typename Char, typename Context>
+        bool test(Char ch_, Context const& context) const
+        {
+
+            char_type ch = char_type(ch_);  // optimize for token based parsing
+            return (get_case_compare<encoding>(context)(ch, from) >= 0)
+               && (get_case_compare<encoding>(context)(ch , to) <= 0);
+        }
+
+        char_type from, to;
+    };
+
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Parser for a character set
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Encoding, typename Attribute = typename Encoding::char_type>
+    struct char_set : char_parser<char_set<Encoding, Attribute>>
+    {
+        typedef typename Encoding::char_type char_type;
+        typedef Encoding encoding;
+        typedef Attribute attribute_type;
+        static bool const has_attribute =
+            !is_same<unused_type, attribute_type>::value;
+
+        template <typename String>
+        char_set(String const& str)
+        {
+            using spirit::x3::detail::cast_char;
+
+            auto* definition = traits::get_c_string(str);
+            auto ch = *definition++;
+            while (ch)
+            {
+                auto next = *definition++;
+                if (next == '-')
+                {
+                    next = *definition++;
+                    if (next == 0)
+                    {
+                        chset.set(cast_char<char_type>(ch));
+                        chset.set('-');
+                        break;
+                    }
+                    chset.set(
+                        cast_char<char_type>(ch),
+                        cast_char<char_type>(next)
+                    );
+                }
+                else
+                {
+                    chset.set(cast_char<char_type>(ch));
+                }
+                ch = next;
+            }
+        }
+
+        template <typename Char, typename Context>
+        bool test(Char ch_, Context const& context) const
+        {
+            return get_case_compare<encoding>(context).in_set(ch_, chset);
+        }
+
+        support::detail::basic_chset<char_type> chset;
+    };
+
+    template <typename Encoding, typename Attribute>
+    struct get_info<char_set<Encoding, Attribute>>
+    {
+        typedef std::string result_type;
+        std::string operator()(char_set<Encoding, Attribute> const& /* p */) const
+        {
+            return "char-set";
+        }
+    };
+
+    template <typename Encoding, typename Attribute>
+    struct get_info<char_range<Encoding, Attribute>>
+    {
+        typedef std::string result_type;
+        std::string operator()(char_range<Encoding, Attribute> const& p) const
+        {
+            return "char_range \"" + to_utf8(Encoding::toucs4(p.from)) + '-' + to_utf8(Encoding::toucs4(p.to))+ '"';
+        }
+    };
+
+}}}
+
+#endif