Implement AString

1 files changed, 93 insertions, 0 deletions

diff --git a/src/strings/rstring.hpp b/src/strings/rstring.hpp
new file mode 100644
index 0000000..b79c7f6
--- /dev/null
+++ b/src/strings/rstring.hpp
@@ -0,0 +1,93 @@
+#ifndef TMWA_STRINGS_RSTRING_HPP
+#define TMWA_STRINGS_RSTRING_HPP
+//    strings/rstring.hpp - An owned, reference-counted immutable string.
+//
+//    Copyright © 2013-2014 Ben Longbons <b.r.longbons@gmail.com>
+//
+//    This file is part of The Mana World (Athena server)
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    This program is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU General Public License for more details.
+//
+//    You should have received a copy of the GNU General Public License
+//    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# include <cstdarg>
+# include <cstring>
+
+# include "base.hpp"
+
+namespace strings
+{
+    /// An owning string that has reached its final contents.
+    /// The storage is NUL-terminated
+    class RString : public _crtp_string<RString, RString, ZPair>
+    {
+        struct Rep
+        {
+            size_t count;
+            size_t size;
+            char body[];
+        };
+        static
+        uint8_t empty_string_rep[sizeof(Rep) + 1];
+
+        Rep *owned;
+
+        template<class It>
+        void _assign(It b, It e);
+    public:
+        RString();
+        RString(const RString&);
+        RString(RString&&);
+        RString& operator = (const RString&);
+        RString& operator = (RString&&);
+        RString(AString);
+        ~RString();
+
+        explicit RString(const MString& s);
+
+        template<size_t n>
+        RString(char (&s)[n]) = delete;
+
+        template<size_t n>
+        RString(const char (&s)[n]);
+
+        template<class It>
+        RString(It b, It e);
+
+        RString(XPair p);
+        //RString(const RString&)
+        RString(const TString&);
+        RString(const SString&);
+        RString(ZString);
+        RString(XString);
+        template<uint8_t n>
+        RString(const VString<n>& v);
+
+        iterator begin() const;
+        iterator end() const;
+        const RString *base() const;
+        const char *c_str() const;
+    };
+
+    // cxxstdio helpers
+    // I think the conversion will happen automatically. TODO test this.
+    // Nope, it doesn't, since there's a template
+    // Actually, it might now.
+    const char *decay_for_printf(const RString& fs);
+
+    __attribute__((format(printf, 2, 0)))
+    int do_vprint(RString& out, const char *fmt, va_list ap);
+} // namespace strings
+
+# include "rstring.tcc"
+
+#endif // TMWA_STRINGS_RSTRING_HPP