635dec5c8e
also - added many member functions to `array` - added more documentation - added format_flags - added some additional cleaning steps to `generate_single_header.py` - made formatters work for any node type, not just tables - fixed documentation header obscuring content during jumps
125 lines
3.0 KiB
C++
125 lines
3.0 KiB
C++
#pragma once
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#include "toml_formatter.h"
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namespace toml
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{
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template <typename CHAR = char>
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class json_formatter final : impl::formatter<CHAR>
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{
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private:
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using base = impl::formatter<CHAR>;
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inline void print(const toml::table& tbl) TOML_MAY_THROW;
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void print(const array& arr) TOML_MAY_THROW
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{
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if (arr.empty())
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impl::print_to_stream("[]"sv, base::stream());
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else
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{
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impl::print_to_stream('[', base::stream());
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base::increase_indent();
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for (size_t i = 0; i < arr.size(); i++)
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{
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if (i > 0_sz)
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impl::print_to_stream(',', base::stream());
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base::print_newline(true);
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base::print_indent();
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auto& v = arr[i];
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const auto type = v.type();
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switch (type)
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{
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case node_type::table: print(*reinterpret_cast<const table*>(&v)); break;
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case node_type::array: print(*reinterpret_cast<const array*>(&v)); break;
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default:
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base::print(v, type);
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}
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}
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base::decrease_indent();
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base::print_newline(true);
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base::print_indent();
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impl::print_to_stream(']', base::stream());
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}
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base::clear_naked_newline();
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}
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void print() TOML_MAY_THROW
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{
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switch (auto source_type = base::source().type())
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{
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case node_type::table: print(*reinterpret_cast<const table*>(&base::source())); break;
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case node_type::array: print(*reinterpret_cast<const array*>(&base::source())); break;
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default: base::print(base::source(), source_type);
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}
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}
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public:
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TOML_NODISCARD_CTOR
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explicit json_formatter(
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const toml::node& source,
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format_flags flags = format_flags::quote_dates_and_times) noexcept
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: base{ source, flags }
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{}
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template <typename T>
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friend std::basic_ostream<T>& operator << (std::basic_ostream<T>& lhs, json_formatter& rhs)
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TOML_MAY_THROW
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{
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rhs.attach(lhs);
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rhs.print();
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rhs.detach();
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return lhs;
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}
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template <typename T>
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friend std::basic_ostream<CHAR>& operator << (std::basic_ostream<T>& lhs, json_formatter&& rhs)
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TOML_MAY_THROW
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{
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return lhs << rhs; //as lvalue
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}
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};
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template <typename CHAR>
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inline void json_formatter<CHAR>::print(const toml::table& tbl) TOML_MAY_THROW
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{
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if (tbl.empty())
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impl::print_to_stream("{}"sv, base::stream());
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else
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{
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impl::print_to_stream('{', base::stream());
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base::increase_indent();
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bool first = false;
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for (auto [k, v] : tbl)
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{
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if (first)
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impl::print_to_stream(", "sv, base::stream());
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first = true;
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base::print_newline(true);
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base::print_indent();
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base::print_quoted_string(k);
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impl::print_to_stream(" : "sv, base::stream());
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const auto type = v.type();
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switch (type)
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{
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case node_type::table: print(*reinterpret_cast<const table*>(&v)); break;
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case node_type::array: print(*reinterpret_cast<const array*>(&v)); break;
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default:
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base::print(v, type);
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}
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}
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base::decrease_indent();
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base::print_newline(true);
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base::print_indent();
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impl::print_to_stream('}', base::stream());
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}
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base::clear_naked_newline();
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}
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}
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