--- /dev/null
+#pragma once
+
+#include <boost/variant/static_visitor.hpp>
+
+#include "render_context.hpp"
+#include "mstch/mstch.hpp"
+#include "utils.hpp"
+#include "render_node.hpp"
+
+namespace mstch {
+
+class render_section: public boost::static_visitor<std::string> {
+ public:
+ enum class flag { none, keep_array };
+ render_section(
+ render_context& ctx,
+ const template_type& section,
+ const delim_type& delims,
+ flag p_flag = flag::none):
+ m_ctx(ctx), m_section(section), m_delims(delims), m_flag(p_flag)
+ {
+ }
+
+ template<class T>
+ std::string operator()(const T& t) const {
+ return render_context::push(m_ctx, t).render(m_section);
+ }
+
+ std::string operator()(const lambda& fun) const {
+ std::string section_str;
+ for (auto& token: m_section)
+ section_str += token.raw();
+ template_type interpreted{fun([this](const mstch::node& n) {
+ return visit(render_node(m_ctx), n);
+ }, section_str), m_delims};
+ return render_context::push(m_ctx).render(interpreted);
+ }
+
+ std::string operator()(const array& array) const {
+ std::string out;
+ if (m_flag == flag::keep_array)
+ return render_context::push(m_ctx, array).render(m_section);
+ else
+ for (auto& item: array)
+ out += visit(render_section(
+ m_ctx, m_section, m_delims, flag::keep_array), item);
+ return out;
+ }
+
+ private:
+ render_context& m_ctx;
+ const template_type& m_section;
+ const delim_type& m_delims;
+ flag m_flag;
+};
+
+}