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