751 lines
27 KiB
C++
751 lines
27 KiB
C++
///\file
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/******************************************************************************
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The MIT License(MIT)
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Embedded Template Library.
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https://github.com/ETLCPP/etl
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https://www.etlcpp.com
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Copyright(c) 2016 John Wellbelove
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files(the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions :
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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******************************************************************************/
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#ifndef ETL_U32STRING_INCLUDED
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#define ETL_U32STRING_INCLUDED
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#include "platform.h"
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#include "basic_string.h"
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#include "hash.h"
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#include "initializer_list.h"
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#include "string_view.h"
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#include "private/minmax_push.h"
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namespace etl
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{
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#if ETL_USING_CPP11
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inline namespace literals
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{
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inline namespace string_literals
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{
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inline constexpr etl::u32string_view operator""_sv(const char32_t* str, size_t length) ETL_NOEXCEPT
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{
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return etl::u32string_view{str, length};
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}
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} // namespace string_literals
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} // namespace literals
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#endif
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typedef ibasic_string<char32_t> iu32string;
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//***************************************************************************
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/// A u32string implementation that uses a fixed size buffer.
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///\tparam MAX_SIZE_ The maximum number of elements that can be stored.
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///\ingroup u32string
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//***************************************************************************
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template <size_t MAX_SIZE_>
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class u32string : public iu32string
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{
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public:
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typedef iu32string base_type;
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typedef iu32string interface_type;
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typedef iu32string::value_type value_type;
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static const size_t MAX_SIZE = MAX_SIZE_;
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//*************************************************************************
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/// Constructor.
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//*************************************************************************
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u32string()
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->initialise();
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}
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//*************************************************************************
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/// Copy constructor.
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///\param other The other string.
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//*************************************************************************
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u32string(const etl::u32string<MAX_SIZE_>& other)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->assign(other);
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}
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//*************************************************************************
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/// From other iu32string.
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///\param other The other iu32string.
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//*************************************************************************
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u32string(const etl::iu32string& other)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->assign(other);
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}
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//*************************************************************************
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/// From other string, position, length.
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///\param other The other string.
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///\param position The position of the first character.
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///\param length The number of characters. Default = npos.
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//*************************************************************************
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u32string(const etl::iu32string& other, size_type position, size_type length = npos)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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ETL_ASSERT(position < other.size(), ETL_ERROR(string_out_of_bounds));
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this->assign(other, position, length);
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}
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//*************************************************************************
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/// Constructor, from null terminated text.
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///\param text The initial text of the u32string.
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//*************************************************************************
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ETL_EXPLICIT_STRING_FROM_CHAR u32string(const value_type* text)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->assign(text);
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}
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//*************************************************************************
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/// Constructor, from null terminated text and count.
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///\param text The initial text of the u32string.
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///\param count The number of characters to copy.
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//*************************************************************************
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u32string(const value_type* text, size_type count)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->assign(text, text + count);
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}
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//*************************************************************************
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/// Constructor, from initial size and value.
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///\param initialSize The initial size of the u32string.
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///\param value The value to fill the u32string with.
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//*************************************************************************
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u32string(size_type count, value_type c)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->initialise();
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this->resize(count, c);
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}
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//*************************************************************************
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/// Constructor, from an iterator range.
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///\tparam TIterator The iterator type.
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///\param first The iterator to the first element.
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///\param last The iterator to the last element + 1.
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//*************************************************************************
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template <typename TIterator>
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u32string(TIterator first, TIterator last, typename etl::enable_if<!etl::is_integral<TIterator>::value, int>::type = 0)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->assign(first, last);
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}
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#if ETL_HAS_INITIALIZER_LIST
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//*************************************************************************
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/// Construct from initializer_list.
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//*************************************************************************
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u32string(std::initializer_list<value_type> init)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->assign(init.begin(), init.end());
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}
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#endif
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//*************************************************************************
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/// From string_view.
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///\param view The string_view.
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//*************************************************************************
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explicit u32string(const etl::u32string_view& view)
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: iu32string(reinterpret_cast<value_type*>(&buffer), MAX_SIZE)
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{
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this->assign(view.begin(), view.end());
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}
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//*************************************************************************
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/// Returns a sub-string.
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///\param position The position of the first character. Default = 0.
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///\param length The number of characters. Default = npos.
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//*************************************************************************
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etl::u32string<MAX_SIZE_> substr(size_type position = 0, size_type length_ = npos) const
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{
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etl::u32string<MAX_SIZE_> new_string;
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if (position != size())
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{
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ETL_ASSERT(position < size(), ETL_ERROR(string_out_of_bounds));
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length_ = etl::min(length_, size() - position);
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new_string.assign(buffer + position, buffer + position + length_);
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}
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return new_string;
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}
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//*************************************************************************
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/// Assignment operator.
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//*************************************************************************
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u32string& operator=(const u32string& rhs)
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{
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if (&rhs != this)
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{
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this->assign(rhs);
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}
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return *this;
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}
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//*************************************************************************
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/// Assignment operator.
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//*************************************************************************
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u32string& operator=(const value_type* text)
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{
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this->assign(text);
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return *this;
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}
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//*************************************************************************
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/// Assignment operator.
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//*************************************************************************
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u32string& operator=(const etl::u32string_view& view)
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{
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this->assign(view);
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return *this;
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}
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//*************************************************************************
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/// Fix the internal pointers after a low level memory copy.
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//*************************************************************************
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#if ETL_HAS_ISTRING_REPAIR
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virtual void repair() ETL_OVERRIDE
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#else
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void repair()
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#endif
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{
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etl::iu32string::repair_buffer(buffer);
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}
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private:
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value_type buffer[MAX_SIZE + 1];
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};
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//***************************************************************************
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/// A string implementation that uses a fixed size external buffer.
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///\ingroup string
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//***************************************************************************
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class u32string_ext : public iu32string
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{
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public:
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typedef iu32string base_type;
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typedef iu32string interface_type;
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typedef iu32string::value_type value_type;
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typedef iu32string::size_type size_type;
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//*************************************************************************
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/// Constructor.
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//*************************************************************************
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u32string_ext(value_type* buffer, size_type buffer_size)
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: iu32string(buffer, buffer_size - 1U)
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{
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this->initialise();
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}
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//*************************************************************************
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/// Constructor, from array buffer.
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///\param buffer The array buffer.
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//*************************************************************************
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template <size_t Size>
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u32string_ext(value_type (&buffer)[Size])
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: iu32string(buffer, Size - 1U)
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{
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this->initialise();
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}
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//*************************************************************************
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/// Copy constructor.
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///\param other The other u32string_ext.
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//*************************************************************************
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u32string_ext(const etl::u32string_ext& other, value_type* buffer, size_type buffer_size)
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: iu32string(buffer, buffer_size - 1U)
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{
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if (this->is_within_buffer(other.data()))
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{
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this->current_size = other.size();
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}
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else
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{
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this->assign(other);
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}
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}
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//*************************************************************************
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/// From other iu32string.
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///\param other The other iu32string.
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//*************************************************************************
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u32string_ext(const etl::iu32string& other, value_type* buffer, size_type buffer_size)
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: iu32string(buffer, buffer_size - 1U)
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{
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if (this->is_within_buffer(other.data()))
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{
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this->current_size = other.size();
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}
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else
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{
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this->assign(other);
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}
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}
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//*************************************************************************
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/// From other iu32string, from array buffer.
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///\param other The other iu32string.
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///\param buffer The array buffer.
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//*************************************************************************
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template <size_t BufferSize>
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u32string_ext(const etl::iu32string& other, value_type (&buffer)[BufferSize])
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: iu32string(buffer, BufferSize - 1U)
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{
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if (this->is_within_buffer(other.data()))
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{
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this->current_size = other.size();
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}
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else
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{
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this->assign(other);
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}
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}
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//*************************************************************************
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/// From other u32string_ext, position, length.
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///\param other The other u32string_ext.
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///\param position The position of the first character.
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///\param length The number of characters. Default = npos.
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//*************************************************************************
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u32string_ext(const etl::iu32string& other, value_type* buffer, size_type buffer_size, size_type position, size_type length = npos)
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: iu32string(buffer, buffer_size - 1U)
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{
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ETL_ASSERT(position < other.size(), ETL_ERROR(string_out_of_bounds));
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if (this->is_within_buffer(other.data()))
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{
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this->current_size = other.size();
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}
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else
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{
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this->assign(other, position, length);
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}
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}
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//*************************************************************************
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/// From other u32string_ext, position, length, from array buffer.
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///\param other The other u32string_ext.
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///\param buffer The array buffer.
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///\param position The position of the first character.
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///\param length The number of characters. Default = npos.
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//*************************************************************************
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template <size_t BufferSize>
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u32string_ext(const etl::iu32string& other, value_type (&buffer)[BufferSize], size_type position, size_type length = npos)
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: iu32string(buffer, BufferSize - 1U)
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{
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ETL_ASSERT(position < other.size(), ETL_ERROR(string_out_of_bounds));
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if (this->is_within_buffer(other.data()))
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{
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this->current_size = other.size();
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}
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else
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{
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this->assign(other, position, length);
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}
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}
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//*************************************************************************
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/// Constructor, from null terminated text.
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///\param text The initial text of the u32string_ext.
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//*************************************************************************
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template <typename TPointer>
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u32string_ext(TPointer text, value_type* buffer, size_type buffer_size,
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typename etl::enable_if<etl::is_same<const value_type*, TPointer>::value, int>::type* = ETL_NULLPTR)
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: iu32string(buffer, buffer_size - 1U)
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{
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if (this->is_within_buffer(text))
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{
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this->current_size = etl::strlen(buffer);
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}
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else
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{
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this->assign(text);
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}
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}
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//*************************************************************************
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/// Constructor, from null terminated text, from array buffer.
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///\param text The initial text of the u32string_ext.
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///\param buffer The array buffer.
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//*************************************************************************
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template <typename TPointer, size_t BufferSize>
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u32string_ext(TPointer text, value_type (&buffer)[BufferSize],
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typename etl::enable_if<etl::is_same<const value_type*, TPointer>::value, int>::type* = ETL_NULLPTR)
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: iu32string(buffer, BufferSize - 1U)
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{
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if (this->is_within_buffer(text))
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{
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this->current_size = etl::strlen(buffer);
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}
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else
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{
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this->assign(text);
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}
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}
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//*************************************************************************
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/// Constructor, from null terminated literal text.
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///\param text The initial text of the u32string_ext.
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//*************************************************************************
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template <size_t Size>
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u32string_ext(const value_type (&literal)[Size], value_type* buffer, size_type buffer_size)
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: iu32string(buffer, buffer_size - 1U)
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{
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if (this->is_within_buffer(literal))
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{
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this->current_size = etl::strlen(literal);
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}
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else
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{
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this->assign(literal);
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}
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}
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//*************************************************************************
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/// Constructor, from null terminated literal text, from array buffer.
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///\param literal The initial text of the u32string_ext.
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///\param buffer The array buffer.
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//*************************************************************************
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template <size_t LiteralSize, size_t BufferSize>
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u32string_ext(const value_type (&literal)[LiteralSize], value_type (&buffer)[BufferSize])
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: iu32string(buffer, BufferSize - 1U)
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{
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if (this->is_within_buffer(literal))
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{
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this->current_size = etl::strlen(literal);
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}
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else
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{
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this->assign(literal);
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}
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}
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//*************************************************************************
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/// Constructor, from null terminated text and count.
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///\param text The initial text of the u32string_ext.
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///\param count The number of characters to copy.
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//*************************************************************************
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u32string_ext(const value_type* text, size_type count, value_type* buffer, size_type buffer_size)
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: iu32string(buffer, buffer_size - 1U)
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{
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if (this->is_within_buffer(text))
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{
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this->current_size = count;
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}
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else
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{
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this->assign(text, text + count);
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}
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}
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//*************************************************************************
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/// Constructor, from null terminated text and count, from array buffer.
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///\param text The initial text of the u32string_ext.
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///\param count The number of characters to copy.
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///\param buffer The array buffer.
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//*************************************************************************
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template <size_t BufferSize>
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u32string_ext(const value_type* text, size_type count, value_type (&buffer)[BufferSize])
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: iu32string(buffer, BufferSize - 1U)
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{
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if (this->is_within_buffer(text))
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{
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this->current_size = count;
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}
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else
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{
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this->assign(text, text + count);
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}
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}
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//*************************************************************************
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/// Constructor, from initial size and value.
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///\param initialSize The initial size of the u32string_ext.
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///\param value The value to fill the u32string_ext with.
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//*************************************************************************
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u32string_ext(size_type count, value_type c, value_type* buffer, size_type buffer_size)
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: iu32string(buffer, buffer_size - 1U)
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{
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this->initialise();
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this->resize(count, c);
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}
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//*************************************************************************
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/// Constructor, from initial size and value, from array buffer.
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///\param count The initial size of the u32string_ext.
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///\param c The value to fill the u32string_ext with.
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///\param buffer The array buffer.
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//*************************************************************************
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template <size_t BufferSize>
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u32string_ext(size_type count, value_type c, value_type (&buffer)[BufferSize])
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: iu32string(buffer, BufferSize - 1U)
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{
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this->initialise();
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this->resize(count, c);
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}
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//*************************************************************************
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/// From u32string_view.
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///\param view The u32string_view.
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//*************************************************************************
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explicit u32string_ext(const etl::u32string_view& view, value_type* buffer, size_type buffer_size)
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: iu32string(buffer, buffer_size - 1U)
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{
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if (this->is_within_buffer(view.data()))
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{
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this->current_size = view.size();
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}
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else
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{
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this->assign(view.begin(), view.end());
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}
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}
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//*************************************************************************
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/// From u32string_view, from array buffer.
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///\param view The u32string_view.
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///\param buffer The array buffer.
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//*************************************************************************
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template <size_t BufferSize>
|
|
explicit u32string_ext(const etl::u32string_view& view, value_type (&buffer)[BufferSize])
|
|
: iu32string(buffer, BufferSize - 1U)
|
|
{
|
|
if (this->is_within_buffer(view.data()))
|
|
{
|
|
this->current_size = view.size();
|
|
}
|
|
else
|
|
{
|
|
this->assign(view.begin(), view.end());
|
|
}
|
|
}
|
|
|
|
//*************************************************************************
|
|
/// Constructor, from an iterator range.
|
|
///\tparam TIterator The iterator type.
|
|
///\param first The iterator to the first element.
|
|
///\param last The iterator to the last element + 1.
|
|
//*************************************************************************
|
|
template <typename TIterator>
|
|
u32string_ext(TIterator first, TIterator last, value_type* buffer, size_type buffer_size,
|
|
typename etl::enable_if<!etl::is_integral<TIterator>::value, int>::type = 0)
|
|
: iu32string(buffer, buffer_size - 1U)
|
|
{
|
|
if (this->is_within_buffer(reinterpret_cast<const_iterator>(etl::addressof(*first))))
|
|
{
|
|
this->current_size = static_cast<size_type>(etl::distance(first, last));
|
|
}
|
|
else
|
|
{
|
|
this->assign(first, last);
|
|
}
|
|
}
|
|
|
|
//*************************************************************************
|
|
/// Constructor, from an iterator range, from array buffer.
|
|
///\tparam TIterator The iterator type.
|
|
///\param first The iterator to the first element.
|
|
///\param last The iterator to the last element + 1.
|
|
///\param buffer The array buffer.
|
|
//*************************************************************************
|
|
template <typename TIterator, size_t BufferSize>
|
|
u32string_ext(TIterator first, TIterator last, value_type (&buffer)[BufferSize],
|
|
typename etl::enable_if<!etl::is_integral<TIterator>::value, int>::type = 0)
|
|
: iu32string(buffer, BufferSize - 1U)
|
|
{
|
|
if (this->is_within_buffer(reinterpret_cast<const_iterator>(etl::addressof(*first))))
|
|
{
|
|
this->current_size = static_cast<size_type>(etl::distance(first, last));
|
|
}
|
|
else
|
|
{
|
|
this->assign(first, last);
|
|
}
|
|
}
|
|
|
|
#if ETL_HAS_INITIALIZER_LIST
|
|
//*************************************************************************
|
|
/// Construct from initializer_list.
|
|
//*************************************************************************
|
|
u32string_ext(std::initializer_list<value_type> init, value_type* buffer, size_type buffer_size)
|
|
: iu32string(buffer, buffer_size - 1U)
|
|
{
|
|
this->assign(init.begin(), init.end());
|
|
}
|
|
|
|
//*************************************************************************
|
|
/// Construct from initializer_list, from array buffer.
|
|
///\param init The initializer_list.
|
|
///\param buffer The array buffer.
|
|
//*************************************************************************
|
|
template <size_t BufferSize>
|
|
u32string_ext(std::initializer_list<value_type> init, value_type (&buffer)[BufferSize])
|
|
: iu32string(buffer, BufferSize - 1U)
|
|
{
|
|
this->assign(init.begin(), init.end());
|
|
}
|
|
#endif
|
|
|
|
//*************************************************************************
|
|
/// Assignment operator.
|
|
//*************************************************************************
|
|
u32string_ext& operator=(const u32string_ext& rhs)
|
|
{
|
|
if (&rhs != this)
|
|
{
|
|
this->assign(rhs);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
//*************************************************************************
|
|
/// Assignment operator.
|
|
//*************************************************************************
|
|
u32string_ext& operator=(const iu32string& rhs)
|
|
{
|
|
if (&rhs != this)
|
|
{
|
|
this->assign(rhs);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
//*************************************************************************
|
|
/// Assignment operator.
|
|
//*************************************************************************
|
|
u32string_ext& operator=(const value_type* text)
|
|
{
|
|
this->assign(text);
|
|
|
|
return *this;
|
|
}
|
|
|
|
//*************************************************************************
|
|
/// Assignment operator.
|
|
//*************************************************************************
|
|
u32string_ext& operator=(const etl::u32string_view& view)
|
|
{
|
|
this->assign(view);
|
|
|
|
return *this;
|
|
}
|
|
|
|
//*************************************************************************
|
|
/// Fix the internal pointers after a low level memory copy.
|
|
//*************************************************************************
|
|
#if ETL_HAS_ISTRING_REPAIR
|
|
virtual void repair() ETL_OVERRIDE
|
|
#else
|
|
void repair()
|
|
#endif
|
|
{
|
|
}
|
|
|
|
private:
|
|
|
|
//*************************************************************************
|
|
/// Deleted.
|
|
//*************************************************************************
|
|
u32string_ext(const u32string_ext& other) ETL_DELETE;
|
|
};
|
|
|
|
//*************************************************************************
|
|
/// Hash function.
|
|
//*************************************************************************
|
|
#if ETL_USING_8BIT_TYPES
|
|
template <>
|
|
struct hash<etl::iu32string>
|
|
{
|
|
size_t operator()(const etl::iu32string& text) const
|
|
{
|
|
return etl::private_hash::generic_hash<size_t>(reinterpret_cast<const uint8_t*>(text.data()),
|
|
reinterpret_cast<const uint8_t*>(text.data() + text.size()));
|
|
}
|
|
};
|
|
|
|
template <size_t SIZE>
|
|
struct hash<etl::u32string<SIZE> >
|
|
{
|
|
size_t operator()(const etl::u32string<SIZE>& text) const
|
|
{
|
|
return etl::private_hash::generic_hash<size_t>(reinterpret_cast<const uint8_t*>(text.data()),
|
|
reinterpret_cast<const uint8_t*>(text.data() + text.size()));
|
|
}
|
|
};
|
|
|
|
template <>
|
|
struct hash<etl::u32string_ext >
|
|
{
|
|
size_t operator()(const etl::u32string_ext& text) const
|
|
{
|
|
return etl::private_hash::generic_hash<size_t>(reinterpret_cast<const uint8_t*>(text.data()),
|
|
reinterpret_cast<const uint8_t*>(text.data() + text.size()));
|
|
}
|
|
};
|
|
#endif
|
|
|
|
//***************************************************************************
|
|
/// Make string from string literal or array
|
|
//***************************************************************************
|
|
template <size_t Array_Size>
|
|
etl::u32string<Array_Size - 1U> make_string(const char32_t (&text)[Array_Size])
|
|
{
|
|
return etl::u32string<Array_Size - 1U>(text, etl::strlen(text, Array_Size - 1U));
|
|
}
|
|
|
|
//***************************************************************************
|
|
/// Make string with max capacity from string literal or array
|
|
//***************************************************************************
|
|
template <size_t MAX_SIZE, size_t SIZE>
|
|
etl::u32string<MAX_SIZE> make_string_with_capacity(const char32_t (&text)[SIZE])
|
|
{
|
|
return etl::u32string<MAX_SIZE>(text, etl::strlen(text, SIZE));
|
|
}
|
|
} // namespace etl
|
|
|
|
#include "private/minmax_pop.h"
|
|
|
|
#endif
|