1 files changed, 59 insertions, 0 deletions
diff --git a/src/boost/tools/quickbook/src/collector.cpp b/src/boost/tools/quickbook/src/collector.cpp
new file mode 100644
index 000000000..31324ab32
--- /dev/null
+++ b/src/boost/tools/quickbook/src/collector.cpp
@@ -0,0 +1,59 @@
+/*=============================================================================
+    Copyright (c) 2002 2004 2006 Joel de Guzman
+    http://spirit.sourceforge.net/
+
+    Use, modification and distribution is subject to 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)
+=============================================================================*/
+#include "collector.hpp"
+#include <boost/assert.hpp>
+
+namespace quickbook
+{
+    string_stream::string_stream()
+        : buffer_ptr(new std::string())
+        , stream_ptr(
+              new ostream(boost::iostreams::back_inserter(*buffer_ptr.get())))
+    {
+    }
+
+    string_stream::string_stream(string_stream const& other)
+        : buffer_ptr(other.buffer_ptr), stream_ptr(other.stream_ptr)
+    {
+    }
+
+    string_stream& string_stream::operator=(string_stream const& other)
+    {
+        buffer_ptr = other.buffer_ptr;
+        stream_ptr = other.stream_ptr;
+        return *this;
+    }
+
+    collector::collector() : main(default_), top(default_) {}
+
+    collector::collector(string_stream& out) : main(out), top(out) {}
+
+    collector::~collector()
+    {
+        BOOST_ASSERT(
+            streams.empty()); // assert there are no more pushes than pops!!!
+    }
+
+    void collector::push()
+    {
+        streams.push(string_stream());
+        top = boost::ref(streams.top());
+    }
+
+    void collector::pop()
+    {
+        BOOST_ASSERT(!streams.empty());
+        streams.pop();
+
+        if (streams.empty())
+            top = boost::ref(main);
+        else
+            top = boost::ref(streams.top());
+    }
+}