diff options
author | crupest <crupest@outlook.com> | 2022-02-08 16:53:51 +0800 |
---|---|---|
committer | crupest <crupest@outlook.com> | 2022-02-08 16:53:51 +0800 |
commit | 74bb9cd27242b9320f99ff4d2b50c3051576cc14 (patch) | |
tree | 744bac5799c593d1d6f81e7b09581bea626f2cde /include/cru/common/Format.hpp | |
parent | b90c398de829d1ba5329651d75bae82f5e4085fe (diff) | |
download | cru-74bb9cd27242b9320f99ff4d2b50c3051576cc14.tar.gz cru-74bb9cd27242b9320f99ff4d2b50c3051576cc14.tar.bz2 cru-74bb9cd27242b9320f99ff4d2b50c3051576cc14.zip |
...
Diffstat (limited to 'include/cru/common/Format.hpp')
-rw-r--r-- | include/cru/common/Format.hpp | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/include/cru/common/Format.hpp b/include/cru/common/Format.hpp deleted file mode 100644 index 1ad71262..00000000 --- a/include/cru/common/Format.hpp +++ /dev/null @@ -1,143 +0,0 @@ -#pragma once - -#include "Exception.hpp" -#include "String.hpp" - -#include <charconv> - -namespace cru { -inline String ToString(bool value) { - return value ? String(u"true") : String(u"false"); -} - -template <typename T> -std::enable_if_t<std::is_integral_v<T>, String> ToString(T value) { - std::array<char, 50> buffer; - auto result = - std::to_chars(buffer.data(), buffer.data() + buffer.size(), value); - - if (result.ec == std::errc{}) { - } else { - throw std::invalid_argument("Failed to convert value to chars."); - } - - auto size = result.ptr - buffer.data(); - auto b = new char16_t[size + 1]; - b[size] = 0; - std::copy(buffer.data(), result.ptr, b); - return String::FromBuffer(b, size, size); -} - -template <typename T> -std::enable_if_t<std::is_floating_point_v<T>, String> ToString(T value) { - auto str = std::to_string(value); - return String(str.cbegin(), str.cend()); -} - -template <typename T> -std::enable_if_t< - std::is_convertible_v<decltype(ToString(std::declval<const T&>)), String>, - String> -ToString(const T& value, StringView option) { - CRU_UNUSED(option) - return ToString(value); -} - -inline String ToString(String value) { return value; } - -namespace details { -enum class FormatTokenType { PlaceHolder, Text }; -enum class FormatPlaceHolderType { None, Positioned, Named }; - -struct FormatToken { - static FormatToken Text() { - return FormatToken{FormatTokenType::Text, {}, {}, 0, {}, {}}; - } - - static FormatToken NonePlaceHolder(String option) { - return FormatToken(FormatTokenType::PlaceHolder, {}, - FormatPlaceHolderType::None, 0, {}, std::move(option)); - } - - static FormatToken PositionedPlaceHolder(int position, String option) { - return FormatToken(FormatTokenType::PlaceHolder, {}, - FormatPlaceHolderType::Positioned, position, {}, - std::move(option)); - } - - static FormatToken NamedPlaceHolder(String name, String option) { - return FormatToken(FormatTokenType::PlaceHolder, {}, - FormatPlaceHolderType::Named, 0, std::move(name), - std::move(option)); - } - - FormatToken(FormatTokenType type, String data, - FormatPlaceHolderType place_holder_type, - int place_holder_position, String place_holder_name, - String place_holder_option) - : type(type), - data(std::move(data)), - place_holder_type(place_holder_type), - place_holder_position(place_holder_position), - place_holder_name(std::move(place_holder_name)), - place_holder_option(std::move(place_holder_option)) {} - - CRU_DEFAULT_COPY(FormatToken) - CRU_DEFAULT_MOVE(FormatToken) - - CRU_DEFAULT_DESTRUCTOR(FormatToken) - - FormatTokenType type; - String data; - FormatPlaceHolderType place_holder_type; - int place_holder_position; - String place_holder_name; - String place_holder_option; -}; - -std::vector<FormatToken> CRU_BASE_API ParseToFormatTokenList(const String& str); - -void CRU_BASE_API FormatAppendFromFormatTokenList( - String& current, const std::vector<FormatToken>& format_token_list, - Index index); - -template <typename TA, typename... T> -void FormatAppendFromFormatTokenList( - String& current, const std::vector<FormatToken>& format_token_list, - Index index, TA&& args0, T&&... args) { - for (Index i = index; i < static_cast<Index>(format_token_list.size()); i++) { - const auto& token = format_token_list[i]; - if (token.type == FormatTokenType::PlaceHolder) { - if (token.place_holder_type == FormatPlaceHolderType::None) { - current += ToString(std::forward<TA>(args0), token.place_holder_option); - FormatAppendFromFormatTokenList(current, format_token_list, i + 1, - std::forward<T>(args)...); - - return; - } else { - throw Exception( - u"Currently do not support positional or named place holder."); - } - } else { - current += token.data; - } - } -} -} // namespace details - -template <typename... T> -String Format(const String& format, T&&... args) { - String result; - - details::FormatAppendFromFormatTokenList( - result, details::ParseToFormatTokenList(format), 0, - std::forward<T>(args)...); - - return result; -} - -template <typename... T> -String String::Format(T&&... args) const { - return cru::Format(*this, std::forward<T>(args)...); -} -} // namespace cru |