1 files changed, 117 insertions, 0 deletions
diff --git a/src/boost/tools/quickbook/src/template_stack.cpp b/src/boost/tools/quickbook/src/template_stack.cpp
new file mode 100644
index 000000000..404780974
--- /dev/null
+++ b/src/boost/tools/quickbook/src/template_stack.cpp
@@ -0,0 +1,117 @@
+/*=============================================================================
+    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 "template_stack.hpp"
+#include <cassert>
+#include "files.hpp"
+
+#ifdef BOOST_MSVC
+#pragma warning(disable : 4355)
+#endif
+
+namespace quickbook
+{
+    template_symbol::template_symbol(
+        std::string const& identifier_,
+        std::vector<std::string> const& params_,
+        value const& content_,
+        template_scope const* lexical_parent_)
+        : identifier(identifier_)
+        , params(params_)
+        , content(content_)
+        , lexical_parent(lexical_parent_)
+    {
+        assert(
+            content.get_tag() == template_tags::block ||
+            content.get_tag() == template_tags::phrase ||
+            content.get_tag() == template_tags::snippet);
+    }
+
+    template_stack::template_stack()
+        : scope(template_stack::parser(*this)), scopes(), parent_1_4(0)
+    {
+        scopes.push_front(template_scope());
+        parent_1_4 = &scopes.front();
+    }
+
+    template_symbol* template_stack::find(std::string const& symbol) const
+    {
+        for (template_scope const* i = &*scopes.begin(); i;
+             i = i->parent_scope) {
+            if (template_symbol* ts =
+                    boost::spirit::classic::find(i->symbols, symbol.c_str()))
+                return ts;
+        }
+        return 0;
+    }
+
+    template_symbol* template_stack::find_top_scope(
+        std::string const& symbol) const
+    {
+        return boost::spirit::classic::find(
+            scopes.front().symbols, symbol.c_str());
+    }
+
+    template_symbols const& template_stack::top() const
+    {
+        BOOST_ASSERT(!scopes.empty());
+        return scopes.front().symbols;
+    }
+
+    template_scope const& template_stack::top_scope() const
+    {
+        BOOST_ASSERT(!scopes.empty());
+        return scopes.front();
+    }
+
+    bool template_stack::add(template_symbol const& ts)
+    {
+        BOOST_ASSERT(!scopes.empty());
+        BOOST_ASSERT(ts.lexical_parent);
+
+        if (this->find_top_scope(ts.identifier)) {
+            return false;
+        }
+
+        boost::spirit::classic::add(
+            scopes.front().symbols, ts.identifier.c_str(), ts);
+
+        return true;
+    }
+
+    void template_stack::push()
+    {
+        template_scope const& old_front = scopes.front();
+        scopes.push_front(template_scope());
+        scopes.front().parent_1_4 = parent_1_4;
+        scopes.front().parent_scope = &old_front;
+        parent_1_4 = &scopes.front();
+    }
+
+    void template_stack::pop()
+    {
+        parent_1_4 = scopes.front().parent_1_4;
+        scopes.pop_front();
+    }
+
+    void template_stack::start_template(template_symbol const* symbol)
+    {
+        // Quickbook 1.4-: When expanding the template continue to use the
+        //                 current scope (the dynamic scope).
+        // Quickbook 1.5+: Use the scope the template was defined in
+        //                 (the static scope).
+        if (symbol->content.get_file()->version() >= 105u) {
+            parent_1_4 = scopes.front().parent_1_4;
+            scopes.front().parent_scope = symbol->lexical_parent;
+        }
+        else {
+            scopes.front().parent_scope = scopes.front().parent_1_4;
+        }
+    }
+}