305 lines
8.5 KiB
C++
305 lines
8.5 KiB
C++
#ifndef option_types_hh_INCLUDED
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#define option_types_hh_INCLUDED
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#include "exception.hh"
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#include "string.hh"
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#include "units.hh"
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#include "coord.hh"
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#include "array_view.hh"
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#include "id_map.hh"
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#include "flags.hh"
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#include "enum.hh"
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#include <tuple>
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#include <vector>
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namespace Kakoune
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{
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template<typename T, typename = void> struct option_type_name;
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template<typename T> using void_t = void;
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template<typename T>
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struct option_type_name<T, void_t<decltype(T::option_type_name)>>
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{
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static decltype(T::option_type_name) name() { return T::option_type_name; }
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};
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template<typename Enum>
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struct option_type_name<Enum, typename std::enable_if<std::is_enum<Enum>::value>::type>
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{
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static String name()
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{
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constexpr StringView type = WithBitOps<Enum>::value ? "flags" : "enum";
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auto name = enum_desc(Enum{});
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return type + "(" + join(name | transform(std::mem_fn(&EnumDesc<Enum>::name)), '|') + ")";
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}
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};
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inline String option_to_string(int opt) { return to_string(opt); }
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inline void option_from_string(StringView str, int& opt) { opt = str_to_int(str); }
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inline bool option_add(int& opt, StringView str)
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{
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auto val = str_to_int(str);
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opt += val;
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return val != 0;
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}
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template<> struct option_type_name<int> { static StringView name() { return "int"; } };
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inline String option_to_string(size_t opt) { return to_string(opt); }
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inline void option_from_string(StringView str, size_t& opt) { opt = str_to_int(str); }
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inline String option_to_string(bool opt) { return opt ? "true" : "false"; }
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inline void option_from_string(StringView str, bool& opt)
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{
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if (str == "true" or str == "yes")
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opt = true;
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else if (str == "false" or str == "no")
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opt = false;
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else
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throw runtime_error("boolean values are either true, yes, false or no");
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}
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template<> struct option_type_name<bool> { static StringView name() { return "bool"; } };
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constexpr char list_separator = ':';
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template<typename T, MemoryDomain domain>
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String option_to_string(const Vector<T, domain>& opt)
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{
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String res;
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for (size_t i = 0; i < opt.size(); ++i)
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{
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res += escape(option_to_string(opt[i]), list_separator, '\\');
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if (i != opt.size() - 1)
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res += list_separator;
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}
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return res;
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}
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template<typename T, MemoryDomain domain>
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void option_from_string(StringView str, Vector<T, domain>& opt)
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{
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opt.clear();
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Vector<String> elems = split(str, list_separator, '\\');
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for (auto& elem: elems)
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{
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T opt_elem;
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option_from_string(elem, opt_elem);
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opt.push_back(opt_elem);
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}
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}
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template<typename T, MemoryDomain domain>
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bool option_add(Vector<T, domain>& opt, StringView str)
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{
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Vector<T, domain> vec;
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option_from_string(str, vec);
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std::copy(std::make_move_iterator(vec.begin()),
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std::make_move_iterator(vec.end()),
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back_inserter(opt));
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return not vec.empty();
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}
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template<typename T, MemoryDomain D>
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struct option_type_name<Vector<T, D>>
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{
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static String name() { return option_type_name<T>::name() + StringView{"-list"}; }
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};
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template<typename Value, MemoryDomain domain>
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String option_to_string(const IdMap<Value, domain>& opt)
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{
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String res;
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for (auto it = begin(opt); it != end(opt); ++it)
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{
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if (it != begin(opt))
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res += list_separator;
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String elem = escape(option_to_string(it->key), '=', '\\') + "=" +
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escape(option_to_string(it->value), '=', '\\');
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res += escape(elem, list_separator, '\\');
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}
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return res;
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}
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template<typename Value, MemoryDomain domain>
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void option_from_string(StringView str, IdMap<Value, domain>& opt)
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{
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opt.clear();
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for (auto& elem : split(str, list_separator, '\\'))
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{
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Vector<String> pair_str = split(elem, '=', '\\');
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if (pair_str.size() != 2)
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throw runtime_error("map option expects key=value");
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String key;
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Value value;
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option_from_string(pair_str[0], key);
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option_from_string(pair_str[1], value);
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opt.append({ std::move(key), std::move(value) });
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}
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}
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template<typename T, MemoryDomain D>
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struct option_type_name<IdMap<T, D>>
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{
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static String name() { return format("str-to-{}-map", option_type_name<T>::name()); }
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};
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constexpr char tuple_separator = '|';
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template<size_t I, typename... Types>
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struct TupleOptionDetail
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{
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static String to_string(const std::tuple<Types...>& opt)
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{
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return TupleOptionDetail<I-1, Types...>::to_string(opt) +
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tuple_separator + escape(option_to_string(std::get<I>(opt)), tuple_separator, '\\');
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}
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static void from_string(ConstArrayView<String> elems, std::tuple<Types...>& opt)
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{
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option_from_string(elems[I], std::get<I>(opt));
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TupleOptionDetail<I-1, Types...>::from_string(elems, opt);
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}
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};
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template<typename... Types>
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struct TupleOptionDetail<0, Types...>
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{
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static String to_string(const std::tuple<Types...>& opt)
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{
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return option_to_string(std::get<0>(opt));
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}
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static void from_string(ConstArrayView<String> elems, std::tuple<Types...>& opt)
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{
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option_from_string(elems[0], std::get<0>(opt));
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}
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};
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template<typename... Types>
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String option_to_string(const std::tuple<Types...>& opt)
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{
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return TupleOptionDetail<sizeof...(Types)-1, Types...>::to_string(opt);
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}
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template<typename... Types>
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void option_from_string(StringView str, std::tuple<Types...>& opt)
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{
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auto elems = split(str, tuple_separator, '\\');
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if (elems.size() != sizeof...(Types))
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throw runtime_error(elems.size() < sizeof...(Types) ?
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"not enough elements in tuple"
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: "to many elements in tuple");
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TupleOptionDetail<sizeof...(Types)-1, Types...>::from_string(elems, opt);
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}
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template<typename RealType, typename ValueType>
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inline String option_to_string(const StronglyTypedNumber<RealType, ValueType>& opt)
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{
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return to_string(opt);
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}
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template<typename RealType, typename ValueType>
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inline void option_from_string(StringView str, StronglyTypedNumber<RealType, ValueType>& opt)
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{
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opt = StronglyTypedNumber<RealType, ValueType>{str_to_int(str)};
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}
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template<typename RealType, typename ValueType>
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inline bool option_add(StronglyTypedNumber<RealType, ValueType>& opt,
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StringView str)
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{
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int val = str_to_int(str);
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opt += val;
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return val != 0;
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}
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template<typename T>
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bool option_add(T&, StringView str)
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{
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throw runtime_error("no add operation supported for this option type");
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}
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template<typename EffectiveType, typename LineType, typename ColumnType>
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inline void option_from_string(StringView str, LineAndColumn<EffectiveType, LineType, ColumnType>& opt)
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{
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auto vals = split(str, ',');
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if (vals.size() != 2)
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throw runtime_error("expected <line>,<column>");
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opt.line = str_to_int(vals[0]);
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opt.column = str_to_int(vals[1]);
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}
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template<typename EffectiveType, typename LineType, typename ColumnType>
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inline String option_to_string(const LineAndColumn<EffectiveType, LineType, ColumnType>& opt)
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{
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return format("{},{}", opt.line, opt.column);
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}
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enum class DebugFlags
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{
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None = 0,
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Hooks = 1 << 0,
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Shell = 1 << 1,
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Profile = 1 << 2,
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};
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template<>
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struct WithBitOps<DebugFlags> : std::true_type {};
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constexpr Array<EnumDesc<DebugFlags>, 3> enum_desc(DebugFlags)
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{
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return { {
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{ DebugFlags::Hooks, "hooks" },
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{ DebugFlags::Shell, "shell" },
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{ DebugFlags::Profile, "profile" }
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} };
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}
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template<typename P, typename T>
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struct PrefixedList
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{
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P prefix;
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Vector<T, MemoryDomain::Options> list;
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};
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template<typename P, typename T>
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inline bool operator==(const PrefixedList<P, T>& lhs, const PrefixedList<P, T>& rhs)
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{
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return lhs.prefix == rhs.prefix and lhs.list == rhs.list;
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}
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template<typename P, typename T>
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inline bool operator!=(const PrefixedList<P, T>& lhs, const PrefixedList<P, T>& rhs)
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{
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return not (lhs == rhs);
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}
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template<typename P, typename T>
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inline String option_to_string(const PrefixedList<P, T>& opt)
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{
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return format("{}:{}", opt.prefix, option_to_string(opt.list));
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}
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template<typename P, typename T>
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inline void option_from_string(StringView str, PrefixedList<P, T>& opt)
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{
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auto it = find(str, ':');
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option_from_string(StringView{str.begin(), it}, opt.prefix);
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if (it != str.end())
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option_from_string({it+1, str.end()}, opt.list);
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}
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template<typename P, typename T>
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inline bool option_add(PrefixedList<P, T>& opt, StringView str)
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{
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return option_add(opt.list, str);
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}
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template<typename T>
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using TimestampedList = PrefixedList<size_t, T>;
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}
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#endif // option_types_hh_INCLUDED
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