directory re-organization (keeps the old build system)

[novacoin.git] / src / json / json_spirit_stream_reader.h

diff --git a/src/json/json_spirit_stream_reader.h b/src/json/json_spirit_stream_reader.h
new file mode 100644 (file)
index 0000000..7e59c9a
--- /dev/null
+++ b/src/json/json_spirit_stream_reader.h
@@ -0,0 +1,70 @@
+#ifndef JSON_SPIRIT_READ_STREAM
+#define JSON_SPIRIT_READ_STREAM
+
+//          Copyright John W. Wilkinson 2007 - 2009.
+// Distributed under the MIT License, see accompanying file LICENSE.txt
+
+// json spirit version 4.03
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include "json_spirit_reader_template.h"
+
+namespace json_spirit
+{
+    // these classes allows you to read multiple top level contiguous values from a stream,
+    // the normal stream read functions have a bug that prevent multiple top level values 
+    // from being read unless they are separated by spaces
+
+    template< class Istream_type, class Value_type >
+    class Stream_reader
+    {
+    public:
+
+        Stream_reader( Istream_type& is )
+        :   iters_( is )
+        {
+        }
+
+        bool read_next( Value_type& value )
+        {
+            return read_range( iters_.begin_, iters_.end_, value );
+        }
+
+    private:
+
+        typedef Multi_pass_iters< Istream_type > Mp_iters;
+
+        Mp_iters iters_;
+    };
+
+    template< class Istream_type, class Value_type >
+    class Stream_reader_thrower
+    {
+    public:
+
+        Stream_reader_thrower( Istream_type& is )
+        :   iters_( is )
+        ,    posn_begin_( iters_.begin_, iters_.end_ )
+        ,    posn_end_( iters_.end_, iters_.end_ )
+        {
+        }
+
+        void read_next( Value_type& value )
+        {
+            posn_begin_ = read_range_or_throw( posn_begin_, posn_end_, value );
+        }
+
+    private:
+
+        typedef Multi_pass_iters< Istream_type > Mp_iters;
+        typedef spirit_namespace::position_iterator< typename Mp_iters::Mp_iter > Posn_iter_t;
+
+        Mp_iters iters_;
+        Posn_iter_t posn_begin_, posn_end_;
+    };
+}
+
+#endif