1336 lines
40 KiB
C++
1336 lines
40 KiB
C++
// Copyright (c) 2016-2018 Easy2D - Nomango
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//
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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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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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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
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// THE SOFTWARE.
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#pragma once
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#include <string>
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#include <algorithm>
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#include <codecvt>
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#include <cstring>
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#include <cstdio>
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namespace easy2d
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{
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//
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// String
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// Lightweight std::wstring<>-like class
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//
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class String
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{
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public:
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// Iterator
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template <typename _Ty>
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struct iterator_impl
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{
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using iterator_category = typename std::iterator_traits<_Ty*>::iterator_category;
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using value_type = typename std::iterator_traits<_Ty*>::value_type;
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using difference_type = typename std::iterator_traits<_Ty*>::difference_type;
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using pointer = typename std::iterator_traits<_Ty*>::pointer;
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using reference = typename std::iterator_traits<_Ty*>::reference;
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// disable warning 4996
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using _Unchecked_type = _Ty;
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inline iterator_impl(pointer base = nullptr) : base_(base) {}
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inline reference operator*() const { return *base_; }
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inline pointer base() const { return base_; }
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inline iterator_impl& operator++() { ++base_; return (*this); }
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inline iterator_impl operator++(int) { iterator_impl old = (*this); ++(*this); return old; }
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inline iterator_impl& operator--() { --base_; return (*this); }
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inline iterator_impl operator--(int) { iterator_impl old = (*this); --(*this); return old; }
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inline const iterator_impl operator+(difference_type off) const { return iterator_impl(base_ + off); }
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inline const iterator_impl operator-(difference_type off) const { return iterator_impl(base_ - off); }
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inline iterator_impl& operator+=(difference_type off) { base_ += off; return (*this); }
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inline iterator_impl& operator-=(difference_type off) { base_ -= off; return (*this); }
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inline difference_type operator-(iterator_impl const& other) const { return base_ - other.base_; }
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inline bool operator==(iterator_impl const& other) const { return base_ == other.base_; }
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inline bool operator!=(iterator_impl const& other) const { return !(*this == other); }
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inline bool operator<(iterator_impl const& other) const { return base_ < other.base_; }
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inline bool operator<=(iterator_impl const& other) const { return base_ <= other.base_; }
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inline bool operator>(iterator_impl const& other) const { return base_ > other.base_; }
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inline bool operator>=(iterator_impl const& other) const { return base_ >= other.base_; }
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inline reference operator[](difference_type off) { return *(base_ + off); }
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inline const reference operator[](difference_type off) const { return *(base_ + off); }
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inline operator bool() const { return base_ != nullptr; }
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private:
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pointer base_{ nullptr };
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};
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public:
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using value_type = wchar_t;
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using size_type = size_t;
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using reference = value_type &;
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using const_reference = const value_type &;
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using iterator = iterator_impl<value_type>;
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using const_iterator = iterator_impl<const value_type>;
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using reverse_iterator = std::reverse_iterator<iterator>;
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using const_reverse_iterator = std::reverse_iterator<const_iterator>;
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using char_traits = std::char_traits<value_type>;
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using allocator = std::allocator<value_type>;
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String();
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String(const wchar_t* cstr, bool const_str = true);
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String(const wchar_t* cstr, size_type count);
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String(size_type count, wchar_t ch);
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String(const char* cstr);
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String(std::string const& str);
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String(std::wstring const& str);
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String(String const& rhs);
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String(String const& rhs, size_type pos, size_type count = npos);
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String(String && rhs);
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~String();
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template <typename _Iter>
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String(_Iter first, _Iter last) : String() { assign_iter(first, last); }
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inline const wchar_t* c_str() const { return const_str_ ? const_str_ : L""; }
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inline const wchar_t* data() const { return const_str_ ? const_str_ : L""; }
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inline wchar_t at(size_t i) const { return (*this)[i]; }
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inline size_type size() const { return size_; }
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inline size_type length() const { return size(); }
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inline size_type capacity() const { return capacity_; }
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inline size_type max_size() const { return (static_cast<size_type>(-1) / sizeof(value_type)); }
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inline bool empty() const { return size_ == 0; }
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inline void clear() { discard_const_data(); if (str_) { str_[0] = value_type(); } size_ = 0; }
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void reserve(const size_type new_cap = 0);
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inline void resize(const size_type new_size, const wchar_t ch = value_type()) { check_operability(); if (new_size < size_) str_[size_ = new_size] = value_type(); else append(new_size - size_, ch); }
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int compare(const wchar_t* const str) const;
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inline int compare(String const& str) const { return compare(str.c_str()); }
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String& append(size_type count, wchar_t ch);
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String& append(const wchar_t* cstr, size_type count);
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String& append(String const& other, size_type pos, size_type count = npos);
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inline String& append(const wchar_t* cstr) { return append(cstr, char_traits::length(cstr)); }
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inline String& append(std::wstring const& str) { return append(str.c_str()); }
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inline String& append(String const& other) { return append(other.const_str_, 0, npos); }
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size_type find(const wchar_t ch, size_type offset = 0) const;
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size_type find(const wchar_t* const str, size_type offset, size_type count) const;
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inline size_type find(String const& str, size_type offset = 0) const { return find(str.c_str(), offset, str.size()); }
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inline size_type find(const wchar_t* const str, size_type offset = 0) const { return find(str, offset, char_traits::length(str)); }
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size_type find_first_of(const wchar_t* const str, size_type offset, size_type count) const;
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inline size_type find_first_of(const wchar_t ch, size_type offset = 0) const { return find(ch, offset); }
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inline size_type find_first_of(String const& str, size_type offset = 0) const { return find_first_of(str.c_str(), offset, str.size()); }
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inline size_type find_first_of(const wchar_t* const str, size_type offset = 0) const { return find_first_of(str, offset, char_traits::length(str)); }
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size_type find_last_of(const wchar_t ch, size_type pos = npos) const;
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size_type find_last_of(const wchar_t* const str, size_type pos, size_type count) const;
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inline size_type find_last_of(String const& str, size_type pos = npos) const { return find_first_of(str.c_str(), pos, str.size()); }
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inline size_type find_last_of(const wchar_t* const str, size_type pos = npos) const { return find_first_of(str, pos, char_traits::length(str)); }
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String& replace(size_type pos, size_type count, const wchar_t* cstr, size_type count2);
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String& replace(size_type pos, size_type count, size_type count2, const wchar_t ch);
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inline String& replace(size_type pos, size_type count, const String& str) { return replace(pos, count, str.c_str(), str.size()); }
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inline String& replace(size_type pos, size_type count, const wchar_t* cstr) { return replace(pos, count, cstr, char_traits::length(cstr)); }
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inline String& replace(const_iterator first, const_iterator last, const String& str) { return replace(first, last, str.c_str(), str.size()); }
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inline String& replace(const_iterator first, const_iterator last, const wchar_t* cstr) { return replace(first, last, cstr, char_traits::length(cstr)); }
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inline String& replace(const_iterator first, const_iterator last, const wchar_t* cstr, size_type count){ return replace(first - cbegin(), last - first, cstr, count); }
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inline String& replace(const_iterator first, const_iterator last, size_type count2, const wchar_t ch) { return replace(first - cbegin(), last - first, count2, ch); }
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String& assign(size_type count, const wchar_t ch);
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String& assign(const wchar_t* cstr, size_type count);
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inline String& assign(const wchar_t* cstr, bool const_str = true) { String(cstr, const_str).swap(*this); return *this; }
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inline String& assign(std::wstring const& str) { String{ str }.swap(*this); return *this; }
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inline String& assign(String const& rhs) { String{ rhs }.swap(*this); return *this; }
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inline String& assign(String const& rhs, size_type pos, size_type count = npos) { String(rhs, pos, count).swap(*this); return *this; }
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template <typename _Iter>
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inline String& assign(_Iter first, _Iter last) { assign_iter(first, last); return(*this); }
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String& erase(size_type offset = 0, size_type count = npos);
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iterator erase(const const_iterator where) { size_type off = where - cbegin(); erase(off, 1); return begin().base() + off; }
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iterator erase(const const_iterator first, const const_iterator last) { size_type off = first - cbegin(); erase(first - cbegin(), last - first); return begin().base() + off; }
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String substr(size_type pos = 0, size_type count = npos) const { return String(*this, pos, count); }
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String& insert(size_type index, size_type count, wchar_t ch);
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String& insert(size_type index, const wchar_t* s, size_type count);
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String& insert(size_type index, const String& str, size_type off, size_type count = npos);
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inline String& insert(size_type index, const wchar_t* s) { return insert(index, s, char_traits::length(s)); }
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inline String& insert(size_type index, const String& str) { return insert(index, str, 0, str.size()); }
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inline iterator insert(const_iterator pos, size_type count, wchar_t ch) { size_type off = pos - cbegin(); insert(off, count, ch); return begin().base() + off; }
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inline iterator insert(const_iterator pos, wchar_t ch) { return insert(pos, 1, ch); }
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inline void push_back(const wchar_t ch) { append(1, ch); }
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inline wchar_t pop_back() { if (empty()) throw std::out_of_range("pop_back() called on empty string"); check_operability(); wchar_t ch = str_[--size_]; str_[size_] = value_type(); return ch; }
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size_type copy(wchar_t* cstr, size_type count, size_type pos = 0) const;
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std::string to_string() const;
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std::wstring to_wstring() const;
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void swap(String& rhs);
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size_t hash() const;
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public:
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static String parse(int val);
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static String parse(unsigned int val);
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static String parse(long val);
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static String parse(unsigned long val);
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static String parse(long long val);
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static String parse(unsigned long long val);
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static String parse(float val);
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static String parse(double val);
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static String parse(long double val);
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template<typename ..._Args>
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static String format(const wchar_t* const fmt, _Args&&... args);
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public:
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inline iterator begin() { check_operability(); return iterator(str_); }
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inline const_iterator begin() const { return const_iterator(const_str_); }
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inline const_iterator cbegin() const { return begin(); }
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inline iterator end() { check_operability(); return iterator(str_ + size_); }
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inline const_iterator end() const { return const_iterator(const_str_ + size_); }
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inline const_iterator cend() const { return end(); }
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inline reverse_iterator rbegin() { check_operability(); return reverse_iterator(end()); }
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inline const_reverse_iterator rbegin() const { return const_reverse_iterator(end()); }
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inline const_reverse_iterator crbegin() const { return rbegin(); }
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inline reverse_iterator rend() { check_operability(); return reverse_iterator(begin()); }
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inline const_reverse_iterator rend() const { return const_reverse_iterator(begin()); }
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inline const_reverse_iterator crend() const { return rend(); }
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inline reference front() { if (empty()) throw std::out_of_range("front() called on empty string"); check_operability(); return str_[0]; }
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inline const_reference front() const { if (empty()) throw std::out_of_range("front() called on empty string"); return const_str_[0]; }
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inline reference back() { if (empty()) throw std::out_of_range("back() called on empty string"); check_operability(); return str_[size_ - 1]; }
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inline const_reference back() const { if (empty()) throw std::out_of_range("back() called on empty string"); return const_str_[size_ - 1]; }
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public:
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inline wchar_t operator[](size_type off) const { if(off >= size_) throw std::out_of_range("string subscript out of range"); return const_str_[off]; }
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inline wchar_t& operator[](size_type off) { if (off >= size_) throw std::out_of_range("string subscript out of range"); check_operability(); return str_[off]; }
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public:
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inline const String operator+(const wchar_t ch) const { return String{ *this }.append(1, ch); }
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inline const String operator+(const wchar_t* cstr) const { return String{ *this }.append(cstr); }
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inline const String operator+(std::wstring const& str) const { return String{ *this }.append(str); }
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inline const String operator+(String const& rhs) const { return String{ *this }.append(rhs); }
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inline String& operator+=(const wchar_t ch) { return append(1, ch); }
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inline String& operator+=(const wchar_t* cstr) { return append(cstr); }
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inline String& operator+=(std::wstring const& str) { return append(str); }
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inline String& operator+=(String const& rhs) { return append(rhs); }
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public:
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inline String& operator=(const wchar_t* cstr) { if (const_str_ != cstr) String{ cstr }.swap(*this); return *this; }
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inline String& operator=(std::wstring const& str) { String{ str }.swap(*this); return *this; }
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inline String& operator=(String const& rhs) { if (this != &rhs) String{ rhs }.swap(*this); return *this; }
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inline String& operator=(String && rhs) { if (this != &rhs) String{ rhs }.swap(*this); return *this; }
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public:
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static const String::size_type npos = static_cast<size_type>(-1);
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static inline allocator& get_allocator()
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{
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static allocator allocator_;
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return allocator_;
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}
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private:
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wchar_t* allocate(size_type count);
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void deallocate(wchar_t*& ptr, size_type count);
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void destroy();
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void discard_const_data();
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void check_operability();
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void check_offset(size_type offset) const { if (offset > size()) throw std::out_of_range("invalid string position"); }
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size_type clamp_suffix_size(size_type off, size_type count) const { return std::min(size() - off, count); }
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template <typename _Iter>
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void assign_iter(_Iter first, _Iter last)
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{
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size_type diff = static_cast<size_type>(std::distance(first, last));
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if (diff == 0)
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return;
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discard_const_data();
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if (diff > capacity_)
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{
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destroy();
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str_ = allocate(diff + 1);
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capacity_ = diff;
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}
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size_ = diff;
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for (size_type index = 0; first != last; ++first, ++index)
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{
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char_traits::assign(str_[index], char_traits::to_char_type(*first));
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}
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char_traits::assign(str_[size_], value_type());
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}
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private:
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union
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{
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struct
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{
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value_type* str_;
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};
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struct
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{
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const value_type* const_str_;
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};
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};
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size_type size_;
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size_type capacity_;
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const bool operable_;
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};
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//
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// operator== for String
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//
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inline bool operator==(String const& lhs, String const& rhs) { return lhs.compare(rhs) == 0; }
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inline bool operator==(const wchar_t* lhs, String const& rhs) { return rhs.compare(lhs) == 0; }
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inline bool operator==(String const& lhs, const wchar_t* rhs) { return lhs.compare(rhs) == 0; }
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inline bool operator==(const char* lhs, String const& rhs) { return rhs.compare(String(lhs)) == 0; }
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inline bool operator==(String const& lhs, const char* rhs) { return lhs.compare(String(rhs)) == 0; }
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//
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// operator!= for String
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//
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inline bool operator!=(String const& lhs, String const& rhs) { return lhs.compare(rhs) != 0; }
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inline bool operator!=(const wchar_t* lhs, String const& rhs) { return rhs.compare(lhs) != 0; }
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inline bool operator!=(String const& lhs, const wchar_t* rhs) { return lhs.compare(rhs) != 0; }
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inline bool operator!=(const char* lhs, String const& rhs) { return rhs.compare(String(lhs)) != 0; }
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inline bool operator!=(String const& lhs, const char* rhs) { return lhs.compare(String(rhs)) != 0; }
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//
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// operator+ for String
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//
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inline String operator+(const wchar_t* lhs, String const& rhs) { return String{ lhs } + rhs; }
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//
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// operator<> for String
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//
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inline bool operator<(String const& lhs, String const& rhs) { return lhs.compare(rhs) < 0; }
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inline bool operator>(String const& lhs, String const& rhs) { return lhs.compare(rhs) > 0; }
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inline bool operator<=(String const& lhs, String const& rhs) { return lhs.compare(rhs) <= 0; }
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inline bool operator>=(String const& lhs, String const& rhs) { return lhs.compare(rhs) >= 0; }
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//
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// operator<<>> for String
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//
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std::basic_ostream<String::value_type>& operator<<(std::basic_ostream<String::value_type>& os, const String & str);
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std::basic_istream<String::value_type>& operator>>(std::basic_istream<String::value_type>& is, String & str);
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//
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// to_string functions
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//
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String to_wstring(int val);
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String to_wstring(unsigned int val);
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String to_wstring(long val);
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String to_wstring(unsigned long val);
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String to_wstring(long long val);
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String to_wstring(unsigned long long val);
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String to_wstring(float val);
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String to_wstring(double val);
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String to_wstring(long double val);
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//
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// format_wstring
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//
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template<typename ..._Args>
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String format_wstring(const wchar_t* const fmt, _Args&&... args);
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}
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namespace easy2d
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{
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//
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// details of String
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//
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namespace __string_details
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{
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template<class _Traits>
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size_t TraitsFind(
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const typename _Traits::char_type* first, size_t first_size, size_t offset,
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const typename _Traits::char_type* second, size_t count)
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{
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if (count > first_size || offset > first_size - count)
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{
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return static_cast<size_t>(-1);
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}
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if (count == 0)
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{
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return offset;
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}
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const auto matches_end = first + (first_size - count) + 1;
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for (auto iter = first + offset; ; ++iter)
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{
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iter = typename _Traits::find(iter, static_cast<size_t>(matches_end - iter), *second);
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if (!iter)
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{
|
|
return static_cast<size_t>(-1);
|
|
}
|
|
|
|
if (typename _Traits::compare(iter, second, count) == 0)
|
|
{
|
|
return static_cast<size_t>(iter - first);
|
|
}
|
|
}
|
|
}
|
|
|
|
template<class _Traits>
|
|
size_t TraitsFindLastOf(
|
|
const typename _Traits::char_type* first, const size_t first_size, const size_t pos,
|
|
const typename _Traits::char_type* second, const size_t count)
|
|
{
|
|
if (count != 0 && first_size != 0)
|
|
{
|
|
for (auto iter = first + std::min(pos, first_size - 1); ; --iter)
|
|
{
|
|
if (typename _Traits::find(second, count, *iter))
|
|
{
|
|
return static_cast<size_t>(iter - first);
|
|
}
|
|
if (iter == first)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return static_cast<size_t>(-1);
|
|
}
|
|
|
|
class chs_codecvt
|
|
: public std::codecvt_byname<wchar_t, char, std::mbstate_t>
|
|
{
|
|
public:
|
|
chs_codecvt() : codecvt_byname("chs") {}
|
|
|
|
static inline std::wstring string_to_wide(std::string const& str)
|
|
{
|
|
std::wstring_convert<chs_codecvt> conv;
|
|
return conv.from_bytes(str);
|
|
}
|
|
|
|
static inline std::string wide_to_string(std::wstring const& str)
|
|
{
|
|
std::wstring_convert<chs_codecvt> conv;
|
|
return conv.to_bytes(str);
|
|
}
|
|
};
|
|
}
|
|
|
|
inline String::String()
|
|
: str_(nullptr)
|
|
, size_(0)
|
|
, capacity_(0)
|
|
, operable_(true)
|
|
{
|
|
}
|
|
|
|
inline String::String(const wchar_t * cstr, bool const_str)
|
|
: operable_(!const_str)
|
|
, size_(0)
|
|
, capacity_(0)
|
|
, str_(nullptr)
|
|
{
|
|
if (cstr == nullptr)
|
|
return;
|
|
|
|
if (operable_)
|
|
{
|
|
assign(cstr, char_traits::length(cstr));
|
|
}
|
|
else
|
|
{
|
|
const_str_ = cstr;
|
|
size_ = char_traits::length(cstr);
|
|
capacity_ = size_;
|
|
}
|
|
}
|
|
|
|
inline String::String(const wchar_t * cstr, size_type count)
|
|
: String()
|
|
{
|
|
assign(cstr, count);
|
|
}
|
|
|
|
inline String::String(size_type count, wchar_t ch)
|
|
: String()
|
|
{
|
|
assign(count, ch);
|
|
}
|
|
|
|
inline String::String(const char * cstr)
|
|
: String()
|
|
{
|
|
if (cstr && cstr[0])
|
|
{
|
|
try
|
|
{
|
|
std::wstring wide_string = __string_details::chs_codecvt::string_to_wide(cstr);
|
|
assign(wide_string);
|
|
}
|
|
catch (std::range_error& e)
|
|
{
|
|
// bad conversion
|
|
(void)e;
|
|
}
|
|
}
|
|
}
|
|
|
|
inline String::String(std::string const & str)
|
|
: String(str.c_str())
|
|
{
|
|
}
|
|
|
|
inline String::String(std::wstring const & str)
|
|
: String(str.c_str(), false)
|
|
{
|
|
}
|
|
|
|
inline String::String(String const & rhs)
|
|
: String(rhs.const_str_, !rhs.operable_)
|
|
{
|
|
}
|
|
|
|
inline String::String(String const & rhs, size_type pos, size_type count)
|
|
: String()
|
|
{
|
|
assign(rhs, pos, count);
|
|
}
|
|
|
|
inline String::String(String && rhs)
|
|
: String()
|
|
{
|
|
swap(rhs);
|
|
}
|
|
|
|
inline String::~String()
|
|
{
|
|
destroy();
|
|
}
|
|
|
|
inline String & String::assign(size_type count, const wchar_t ch)
|
|
{
|
|
discard_const_data();
|
|
|
|
if (count != 0)
|
|
{
|
|
if (count > capacity_)
|
|
{
|
|
destroy();
|
|
str_ = allocate(count + 1);
|
|
capacity_ = count;
|
|
}
|
|
size_ = count;
|
|
|
|
char_traits::assign(str_, count, ch);
|
|
char_traits::assign(str_[size_], value_type());
|
|
|
|
}
|
|
else
|
|
{
|
|
clear();
|
|
}
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::assign(const wchar_t * cstr, size_type count)
|
|
{
|
|
discard_const_data();
|
|
|
|
if (cstr && count)
|
|
{
|
|
if (count > capacity_)
|
|
{
|
|
destroy();
|
|
str_ = allocate(count + 1);
|
|
capacity_ = count;
|
|
}
|
|
size_ = count;
|
|
|
|
char_traits::move(str_, cstr, size_);
|
|
char_traits::assign(str_[size_], value_type());
|
|
}
|
|
else
|
|
{
|
|
clear();
|
|
}
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::erase(size_type offset, size_type count)
|
|
{
|
|
if (count == 0)
|
|
return (*this);
|
|
|
|
check_offset(offset);
|
|
check_operability();
|
|
|
|
count = clamp_suffix_size(offset, count);
|
|
|
|
if (count == 0)
|
|
{
|
|
clear();
|
|
return (*this);
|
|
}
|
|
|
|
size_type new_size = size_ - count;
|
|
iterator erase_at = begin().base() + offset;
|
|
char_traits::move(erase_at.base(), erase_at.base() + count, new_size - offset + 1);
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::insert(size_type index, size_type count, wchar_t ch)
|
|
{
|
|
if (count == 0)
|
|
return (*this);
|
|
|
|
if (index >= size())
|
|
return append(count, ch);
|
|
|
|
check_operability();
|
|
|
|
wchar_t* const old_ptr = str_;
|
|
const size_type old_size = size_;
|
|
const size_type old_capacity = capacity_;
|
|
const size_type suffix_size = old_size - index + 1;
|
|
|
|
size_ = old_size + count;
|
|
|
|
if (size_ > old_capacity)
|
|
{
|
|
capacity_ = size_;
|
|
wchar_t* new_ptr = allocate(capacity_ + 1);
|
|
|
|
wchar_t* const insert_at = new_ptr + index;
|
|
char_traits::move(new_ptr, old_ptr, index); // (0) - (index)
|
|
char_traits::assign(insert_at, count, ch); // (index) - (index + count)
|
|
char_traits::move(insert_at + count, old_ptr + index, suffix_size); // (index + count) - (old_size - index)
|
|
|
|
deallocate(str_, old_capacity + 1);
|
|
str_ = new_ptr;
|
|
}
|
|
else
|
|
{
|
|
wchar_t* const insert_at = old_ptr + index;
|
|
char_traits::move(insert_at + count, old_ptr + index, suffix_size);
|
|
char_traits::assign(insert_at, count, ch);
|
|
}
|
|
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::insert(size_type index, const wchar_t * cstr, size_type count)
|
|
{
|
|
if (count == 0)
|
|
return (*this);
|
|
|
|
if (index >= size())
|
|
return append(cstr, count);
|
|
|
|
check_operability();
|
|
|
|
wchar_t* const old_ptr = str_;
|
|
const size_type old_size = size_;
|
|
const size_type old_capacity = capacity_;
|
|
const size_type suffix_size = old_size - index + 1;
|
|
|
|
size_ = old_size + count;
|
|
|
|
if (size_ > old_capacity)
|
|
{
|
|
capacity_ = size_;
|
|
wchar_t* new_ptr = allocate(capacity_ + 1);
|
|
|
|
wchar_t* const insert_at = new_ptr + index;
|
|
char_traits::move(new_ptr, old_ptr, index); // (0) - (index)
|
|
char_traits::move(insert_at, cstr, count); // (index) - (index + count)
|
|
char_traits::move(insert_at + count, old_ptr + index, suffix_size); // (index + count) - (old_size - index)
|
|
|
|
deallocate(str_, old_capacity + 1);
|
|
str_ = new_ptr;
|
|
}
|
|
else
|
|
{
|
|
wchar_t* const insert_at = old_ptr + index;
|
|
char_traits::move(insert_at + count, old_ptr + index, suffix_size);
|
|
char_traits::move(insert_at, cstr, count);
|
|
}
|
|
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::insert(size_type index, const String & str, size_type off, size_type count)
|
|
{
|
|
if (count == 0 || off > str.size())
|
|
return (*this);
|
|
|
|
if (index >= size())
|
|
return append(str, off, count);
|
|
|
|
check_operability();
|
|
|
|
count = clamp_suffix_size(off, count);
|
|
|
|
wchar_t* const old_ptr = str_;
|
|
const size_type old_size = size_;
|
|
const size_type old_capacity = capacity_;
|
|
const size_type suffix_size = old_size - index + 1;
|
|
|
|
size_ = old_size + count;
|
|
|
|
if (size_ > old_capacity)
|
|
{
|
|
capacity_ = size_;
|
|
wchar_t* new_ptr = allocate(capacity_ + 1);
|
|
|
|
wchar_t* const insert_at = new_ptr + index;
|
|
char_traits::move(new_ptr, old_ptr, index); // (0) - (index)
|
|
char_traits::move(insert_at, str.begin().base() + off, count); // (index) - (index + count)
|
|
char_traits::move(insert_at + count, old_ptr + index, suffix_size); // (index + count) - (old_size - index)
|
|
|
|
deallocate(str_, old_capacity + 1);
|
|
str_ = new_ptr;
|
|
}
|
|
else
|
|
{
|
|
wchar_t* const insert_at = old_ptr + index;
|
|
char_traits::move(insert_at + count, old_ptr + index, suffix_size);
|
|
char_traits::move(insert_at, str.begin().base() + off, count);
|
|
}
|
|
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::append(size_type count, wchar_t ch)
|
|
{
|
|
check_operability();
|
|
|
|
size_t new_size = size_ + count;
|
|
size_t new_cap = new_size + 1;
|
|
wchar_t* new_str = allocate(new_cap);
|
|
|
|
char_traits::move(new_str, str_, size_);
|
|
char_traits::assign(new_str + size_, count, ch);
|
|
char_traits::assign(new_str[new_size], value_type());
|
|
|
|
destroy();
|
|
|
|
str_ = new_str;
|
|
size_ = new_size;
|
|
capacity_ = new_cap;
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::append(const wchar_t * cstr, size_type count)
|
|
{
|
|
check_operability();
|
|
|
|
size_t new_size = size_ + count;
|
|
size_t new_cap = new_size + 1;
|
|
wchar_t* new_str = allocate(new_cap);
|
|
|
|
char_traits::move(new_str, str_, size_);
|
|
char_traits::move(new_str + size_, cstr, count);
|
|
char_traits::assign(new_str[new_size], value_type());
|
|
|
|
destroy();
|
|
|
|
str_ = new_str;
|
|
size_ = new_size;
|
|
capacity_ = new_cap;
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::append(String const & other, size_type pos, size_type count)
|
|
{
|
|
check_operability();
|
|
|
|
if (pos >= other.size())
|
|
return (*this);
|
|
|
|
count = other.clamp_suffix_size(pos, count);
|
|
|
|
size_t new_size = size_ + count;
|
|
size_t new_cap = new_size + 1;
|
|
wchar_t* new_str = allocate(new_cap);
|
|
|
|
char_traits::move(new_str, str_, size_);
|
|
char_traits::move(new_str + size_, other.begin().base() + pos, count);
|
|
char_traits::assign(new_str[new_size], value_type());
|
|
|
|
destroy();
|
|
|
|
str_ = new_str;
|
|
size_ = new_size;
|
|
capacity_ = new_cap;
|
|
return (*this);
|
|
}
|
|
|
|
inline void String::reserve(const size_type new_cap)
|
|
{
|
|
if (new_cap <= capacity_)
|
|
return;
|
|
|
|
check_operability();
|
|
|
|
wchar_t* new_str = allocate(new_cap);
|
|
char_traits::move(new_str, str_, capacity_);
|
|
|
|
destroy();
|
|
|
|
str_ = new_str;
|
|
capacity_ = new_cap;
|
|
}
|
|
|
|
inline size_t String::hash() const
|
|
{
|
|
static size_t fnv_prime = 16777619U;
|
|
size_t fnv_offset_basis = 2166136261U;
|
|
|
|
for (size_t index = 0; index < size_; ++index)
|
|
{
|
|
fnv_offset_basis ^= static_cast<size_t>(const_str_[index]);
|
|
fnv_offset_basis *= fnv_prime;
|
|
}
|
|
return fnv_offset_basis;
|
|
}
|
|
|
|
inline int String::compare(const wchar_t * const str) const
|
|
{
|
|
size_type count1 = size();
|
|
size_type count2 = char_traits::length(str);
|
|
size_type rlen = std::min(count1, count2);
|
|
|
|
int ret = char_traits::compare(const_str_, str, rlen);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
if (count1 < count2)
|
|
return -1;
|
|
|
|
if (count1 > count2)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
inline String::size_type String::find(const wchar_t ch, size_type offset) const
|
|
{
|
|
if (offset >= size_)
|
|
return String::npos;
|
|
|
|
const_iterator citer = char_traits::find(cbegin().base() + offset, size_, ch);
|
|
return citer ? (citer - cbegin()) : String::npos;
|
|
}
|
|
|
|
inline String::size_type String::find(const wchar_t * const str, size_type offset, size_type count) const
|
|
{
|
|
if (offset >= size_)
|
|
return String::npos;
|
|
return __string_details::TraitsFind<String::char_traits>(const_str_, size_, offset, str, count);
|
|
}
|
|
|
|
inline String::size_type String::find_first_of(const wchar_t * const str, size_type offset, size_type count) const
|
|
{
|
|
if (offset >= size_)
|
|
return String::npos;
|
|
|
|
const_iterator citer = std::find_first_of(cbegin().base() + offset, cend().base(), str, str + count);
|
|
return (citer != cend()) ? (citer - cbegin()) : String::npos;
|
|
}
|
|
|
|
inline String::size_type String::find_last_of(const wchar_t ch, size_type pos) const
|
|
{
|
|
if (pos == 0 || pos > size_ || pos == npos)
|
|
return npos;
|
|
|
|
const_reverse_iterator criter = std::find(crbegin(), crend(), ch);
|
|
return (criter != crend()) ? (criter.base() - cbegin()) : String::npos;
|
|
}
|
|
|
|
inline String::size_type String::find_last_of(const wchar_t * const str, size_type pos, size_type count) const
|
|
{
|
|
if (pos == 0 || pos > size_ || pos == npos)
|
|
return npos;
|
|
|
|
return __string_details::TraitsFindLastOf<String::char_traits>(const_str_, size_, pos, str, count);
|
|
}
|
|
|
|
inline String & String::replace(size_type pos, size_type count, const wchar_t * cstr, size_type count2)
|
|
{
|
|
check_offset(pos);
|
|
check_operability();
|
|
|
|
count = clamp_suffix_size(pos, count);
|
|
if (count == count2)
|
|
{
|
|
char_traits::move(str_ + pos, cstr, count2);
|
|
return (*this);
|
|
}
|
|
|
|
wchar_t* new_ptr = nullptr;
|
|
wchar_t* const old_ptr = str_;
|
|
const size_type old_size = size_;
|
|
const size_type old_capacity = capacity_;
|
|
const size_type suffix_size = old_size - count - pos + 1;
|
|
|
|
if (count < count2 && (old_size + count2 - count) > capacity_)
|
|
{
|
|
const size_type growth = count2 - count;
|
|
size_ = old_size + growth;
|
|
capacity_ = size_;
|
|
new_ptr = allocate(capacity_ + 1);
|
|
|
|
char_traits::move(new_ptr, old_ptr, pos);
|
|
}
|
|
else
|
|
{
|
|
size_ = old_size - (count - count2);
|
|
}
|
|
|
|
wchar_t* const insert_at = (new_ptr ? new_ptr : old_ptr) + pos;
|
|
char_traits::move(insert_at, cstr, count2);
|
|
char_traits::move(insert_at + count2, old_ptr + count, suffix_size);
|
|
|
|
if (new_ptr)
|
|
{
|
|
deallocate(str_, old_capacity + 1);
|
|
str_ = new_ptr;
|
|
}
|
|
|
|
return (*this);
|
|
}
|
|
|
|
inline String & String::replace(size_type pos, size_type count, size_type count2, const wchar_t ch)
|
|
{
|
|
check_offset(pos);
|
|
check_operability();
|
|
|
|
count = clamp_suffix_size(pos, count);
|
|
if (count == count2)
|
|
{
|
|
char_traits::assign(str_ + pos, count2, ch);
|
|
return (*this);
|
|
}
|
|
|
|
wchar_t* new_ptr = nullptr;
|
|
wchar_t* const old_ptr = str_;
|
|
const size_type old_size = size_;
|
|
const size_type old_capacity = capacity_;
|
|
const size_type suffix_size = old_size - count - pos + 1;
|
|
|
|
if (count < count2 && (old_size + count2 - count) > capacity_)
|
|
{
|
|
const size_type growth = count2 - count;
|
|
size_ = old_size + growth;
|
|
capacity_ = size_;
|
|
new_ptr = allocate(capacity_ + 1);
|
|
|
|
char_traits::move(new_ptr, old_ptr, pos);
|
|
}
|
|
else
|
|
{
|
|
size_ = old_size - (count - count2);
|
|
}
|
|
|
|
wchar_t* const insert_at = (new_ptr ? new_ptr : old_ptr) + pos;
|
|
char_traits::assign(insert_at, count2, ch);
|
|
char_traits::move(insert_at + count2, old_ptr + count, suffix_size);
|
|
|
|
if (new_ptr)
|
|
{
|
|
deallocate(str_, old_capacity + 1);
|
|
str_ = new_ptr;
|
|
}
|
|
|
|
return (*this);
|
|
}
|
|
|
|
inline String::size_type String::copy(wchar_t * cstr, size_type count, size_type pos) const
|
|
{
|
|
if (count == 0 || cstr == const_str_)
|
|
return 0;
|
|
|
|
check_offset(pos);
|
|
|
|
count = clamp_suffix_size(pos, count);
|
|
char_traits::move(cstr, cbegin().base() + pos, count);
|
|
return count;
|
|
}
|
|
|
|
inline std::string String::to_string() const
|
|
{
|
|
if (const_str_ && size_)
|
|
{
|
|
try
|
|
{
|
|
std::string string = __string_details::chs_codecvt::wide_to_string(const_str_);
|
|
return string;
|
|
}
|
|
catch (std::range_error& e)
|
|
{
|
|
// bad conversion
|
|
(void)e;
|
|
}
|
|
}
|
|
return std::string();
|
|
}
|
|
|
|
inline std::wstring String::to_wstring() const
|
|
{
|
|
return std::wstring(const_str_);
|
|
}
|
|
|
|
inline wchar_t * String::allocate(size_type count)
|
|
{
|
|
return get_allocator().allocate(count);
|
|
}
|
|
|
|
inline void String::deallocate(wchar_t*& ptr, size_type count)
|
|
{
|
|
get_allocator().deallocate(ptr, count);
|
|
ptr = nullptr;
|
|
}
|
|
|
|
inline void String::destroy()
|
|
{
|
|
if (operable_ && str_)
|
|
{
|
|
deallocate(str_, capacity_ + 1);
|
|
}
|
|
else
|
|
{
|
|
const_str_ = nullptr;
|
|
}
|
|
size_ = capacity_ = 0;
|
|
}
|
|
|
|
inline void String::swap(String & rhs)
|
|
{
|
|
std::swap(const_str_, rhs.const_str_);
|
|
std::swap(size_, rhs.size_);
|
|
std::swap(capacity_, rhs.capacity_);
|
|
|
|
// swap const datas
|
|
std::swap(*const_cast<bool*>(&operable_), *const_cast<bool*>(&rhs.operable_));
|
|
}
|
|
|
|
inline void String::discard_const_data()
|
|
{
|
|
if (!operable_)
|
|
{
|
|
// force to enable operability
|
|
*const_cast<bool*>(&operable_) = true;
|
|
const_str_ = nullptr;
|
|
capacity_ = size_ = 0;
|
|
}
|
|
}
|
|
|
|
inline void String::check_operability()
|
|
{
|
|
if (!operable_)
|
|
{
|
|
// create a new string, then swap it with self
|
|
String(const_str_, false).swap(*this);
|
|
}
|
|
}
|
|
|
|
//
|
|
// details of String::parese
|
|
//
|
|
|
|
inline String String::parse(int val) { return ::easy2d::to_wstring(val); }
|
|
inline String String::parse(unsigned int val) { return ::easy2d::to_wstring(val); }
|
|
inline String String::parse(long val) { return ::easy2d::to_wstring(val); }
|
|
inline String String::parse(unsigned long val) { return ::easy2d::to_wstring(val); }
|
|
inline String String::parse(long long val) { return ::easy2d::to_wstring(val); }
|
|
inline String String::parse(unsigned long long val) { return ::easy2d::to_wstring(val); }
|
|
inline String String::parse(float val) { return ::easy2d::to_wstring(val); }
|
|
inline String String::parse(double val) { return ::easy2d::to_wstring(val); }
|
|
inline String String::parse(long double val) { return ::easy2d::to_wstring(val); }
|
|
|
|
template<typename ..._Args>
|
|
inline String String::format(const wchar_t* const fmt, _Args&&... args)
|
|
{
|
|
return ::easy2d::format_wstring(fmt, std::forward<_Args>(args)...);
|
|
}
|
|
|
|
//
|
|
// details of operator<<>>
|
|
//
|
|
|
|
inline std::basic_ostream<String::value_type>& operator<<(std::basic_ostream<String::value_type>& os, const String & str)
|
|
{
|
|
using ostream = std::basic_ostream<String::value_type>;
|
|
using size_type = String::size_type;
|
|
using traits = String::char_traits;
|
|
|
|
const ostream::sentry ok(os);
|
|
std::ios_base::iostate state = std::ios_base::goodbit;
|
|
|
|
if (!ok)
|
|
{
|
|
state |= std::ios_base::badbit;
|
|
}
|
|
else
|
|
{
|
|
const auto str_size = str.size();
|
|
size_type pad = (os.width() <= 0 || static_cast<size_type>(os.width()) <= str_size) ? 0 : static_cast<size_type>(os.width()) - str_size;
|
|
|
|
try
|
|
{
|
|
if ((os.flags() & std::ios_base::adjustfield) != std::ios_base::left)
|
|
{
|
|
for (; 0 < pad; --pad)
|
|
{
|
|
if (traits::eq_int_type(traits::eof(), os.rdbuf()->sputc(os.fill())))
|
|
{
|
|
state |= std::ios_base::badbit;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (state == std::ios_base::goodbit
|
|
&& os.rdbuf()->sputn(str.data(), (std::streamsize)str_size) != (std::streamsize)str_size)
|
|
{
|
|
state |= std::ios_base::badbit;
|
|
}
|
|
else
|
|
{
|
|
for (; 0 < pad; --pad)
|
|
{
|
|
if (traits::eq_int_type(traits::eof(), os.rdbuf()->sputc(os.fill())))
|
|
{
|
|
state |= std::ios_base::badbit;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
os.width(0);
|
|
}
|
|
catch (...)
|
|
{
|
|
os.setstate(std::ios_base::badbit, true);
|
|
}
|
|
}
|
|
|
|
os.setstate(state);
|
|
return (os);
|
|
}
|
|
|
|
inline std::basic_istream<String::value_type>& operator>>(std::basic_istream<String::value_type>& is, String & str)
|
|
{
|
|
using ctype = std::ctype<String::value_type>;
|
|
using istream = std::basic_istream<String::value_type>;
|
|
using size_type = String::size_type;
|
|
using traits = String::char_traits;
|
|
|
|
bool changed = false;
|
|
const istream::sentry ok(is);
|
|
std::ios_base::iostate state = std::ios_base::goodbit;
|
|
|
|
if (ok)
|
|
{
|
|
const ctype& ctype_fac = std::use_facet<ctype>(is.getloc());
|
|
str.erase();
|
|
try
|
|
{
|
|
size_type size = (0 < is.width() && static_cast<size_type>(is.width()) < str.max_size()) ? static_cast<size_type>(is.width()) : str.max_size();
|
|
traits::int_type meta = is.rdbuf()->sgetc();
|
|
|
|
for (; 0 < size; --size, meta = is.rdbuf()->snextc())
|
|
{
|
|
if (traits::eq_int_type(traits::eof(), meta))
|
|
{
|
|
state |= std::ios_base::eofbit;
|
|
break;
|
|
}
|
|
else if (ctype_fac.is(ctype::space, traits::to_char_type(meta)))
|
|
{
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
str.push_back(traits::to_char_type(meta));
|
|
changed = true;
|
|
}
|
|
}
|
|
}
|
|
catch (...)
|
|
{
|
|
is.setstate(std::ios_base::badbit, true);
|
|
}
|
|
}
|
|
|
|
is.width(0);
|
|
if (!changed)
|
|
state |= std::ios_base::failbit;
|
|
is.setstate(state);
|
|
return is;
|
|
}
|
|
|
|
//
|
|
// details of to_string functions
|
|
//
|
|
|
|
namespace __to_string_detail
|
|
{
|
|
template<typename _Ty>
|
|
inline String FloatingToString(const wchar_t *fmt, _Ty val);
|
|
|
|
template <typename _Ty>
|
|
inline String IntegralToString(const _Ty val);
|
|
}
|
|
|
|
inline String to_wstring(int val)
|
|
{
|
|
return (__to_string_detail::IntegralToString(val));
|
|
}
|
|
|
|
inline String to_wstring(unsigned int val)
|
|
{
|
|
return (__to_string_detail::IntegralToString(val));
|
|
}
|
|
|
|
inline String to_wstring(long val)
|
|
{
|
|
return (__to_string_detail::IntegralToString(val));
|
|
}
|
|
|
|
inline String to_wstring(unsigned long val)
|
|
{
|
|
return (__to_string_detail::IntegralToString(val));
|
|
}
|
|
|
|
inline String to_wstring(long long val)
|
|
{
|
|
return (__to_string_detail::IntegralToString(val));
|
|
}
|
|
|
|
inline String to_wstring(unsigned long long val)
|
|
{
|
|
return (__to_string_detail::IntegralToString(val));
|
|
}
|
|
|
|
inline String to_wstring(float val)
|
|
{
|
|
return (__to_string_detail::FloatingToString(L"%f", val));
|
|
}
|
|
|
|
inline String to_wstring(double val)
|
|
{
|
|
return (__to_string_detail::FloatingToString(L"%f", val));
|
|
}
|
|
|
|
inline String to_wstring(long double val)
|
|
{
|
|
return (__to_string_detail::FloatingToString(L"%Lf", val));
|
|
}
|
|
|
|
template<typename ..._Args>
|
|
inline String format_wstring(const wchar_t* const fmt, _Args&&... args)
|
|
{
|
|
const auto len = static_cast<String::size_type>(::_scwprintf(fmt, std::forward<_Args>(args)...));
|
|
if (len)
|
|
{
|
|
String str(len, L'\0');
|
|
::swprintf_s(&str[0], len + 1, fmt, std::forward<_Args>(args)...);
|
|
return str;
|
|
}
|
|
return String{};
|
|
}
|
|
|
|
namespace __to_string_detail
|
|
{
|
|
template<typename _Ty>
|
|
inline String FloatingToString(const wchar_t *fmt, _Ty val)
|
|
{
|
|
static_assert(std::is_floating_point<_Ty>::value, "_Ty must be floating point");
|
|
|
|
return format_wstring(fmt, val);
|
|
}
|
|
|
|
template <typename _Ty>
|
|
inline String IntegralToString(const _Ty val)
|
|
{
|
|
static_assert(std::is_integral<_Ty>::value, "_Ty must be integral");
|
|
|
|
using _UTy = std::make_unsigned_t<_Ty>;
|
|
using _Elem = String::char_traits::char_type;
|
|
|
|
_Elem buffer[21];
|
|
_Elem* const buffer_end = std::end(buffer);
|
|
_Elem* next = buffer_end;
|
|
auto uval = static_cast<_UTy>(val);
|
|
|
|
if (val < 0)
|
|
uval = 0 - uval;
|
|
|
|
do
|
|
{
|
|
*--next = static_cast<_Elem>('0' + uval % 10);
|
|
uval /= 10;
|
|
} while (uval != 0);
|
|
|
|
if (val < 0)
|
|
*--next = static_cast<_Elem>('-');
|
|
|
|
return String(next, buffer_end);
|
|
}
|
|
}
|
|
}
|
|
|
|
namespace std
|
|
{
|
|
template<>
|
|
struct hash<::easy2d::String>
|
|
{
|
|
inline size_t operator()(const easy2d::String& key) const
|
|
{
|
|
return key.hash();
|
|
}
|
|
};
|
|
|
|
template<>
|
|
inline void swap<::easy2d::String>(::easy2d::String& lhs, ::easy2d::String& rhs)
|
|
{
|
|
lhs.swap(rhs);
|
|
}
|
|
}
|