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/*
* Copyright (C) 2013-2017 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef STRING_VIEW_HXX
#define STRING_VIEW_HXX
#include "ConstBuffer.hxx"
#include "StringAPI.hxx"
template<typename T>
struct BasicStringView : ConstBuffer<T> {
typedef typename ConstBuffer<T>::size_type size_type;
typedef typename ConstBuffer<T>::value_type value_type;
typedef typename ConstBuffer<T>::pointer_type pointer_type;
using ConstBuffer<T>::data;
using ConstBuffer<T>::size;
BasicStringView() = default;
explicit constexpr BasicStringView(ConstBuffer<T> src)
:ConstBuffer<T>(src) {}
explicit constexpr BasicStringView(ConstBuffer<void> src)
:ConstBuffer<T>(ConstBuffer<T>::FromVoid(src)) {}
constexpr BasicStringView(pointer_type _data, size_type _size) noexcept
:ConstBuffer<T>(_data, _size) {}
constexpr BasicStringView(pointer_type _begin,
pointer_type _end) noexcept
:ConstBuffer<T>(_begin, _end - _begin) {}
BasicStringView(pointer_type _data) noexcept
:ConstBuffer<T>(_data,
_data != nullptr ? StringLength(_data) : 0) {}
constexpr BasicStringView(std::nullptr_t n) noexcept
:ConstBuffer<T>(n) {}
using ConstBuffer<T>::empty;
using ConstBuffer<T>::front;
using ConstBuffer<T>::back;
using ConstBuffer<T>::pop_front;
using ConstBuffer<T>::pop_back;
gcc_pure
pointer_type Find(value_type ch) const noexcept {
return StringFind(data, ch, this->size);
}
gcc_pure
bool StartsWith(BasicStringView<T> needle) const noexcept {
return this->size >= needle.size &&
StringIsEqual(data, needle.data, needle.size);
}
gcc_pure
bool EndsWith(BasicStringView<T> needle) const noexcept {
return this->size >= needle.size &&
StringIsEqual(data + this->size - needle.size,
needle.data, needle.size);
}
gcc_pure
bool Equals(BasicStringView<T> other) const noexcept {
return this->size == other.size &&
StringIsEqual(data, other.data, this->size);
}
gcc_pure
bool EqualsIgnoreCase(BasicStringView<T> other) const noexcept {
return this->size == other.size &&
StringIsEqualIgnoreCase(data, other.data, this->size);
}
/**
* Skip all whitespace at the beginning.
*/
void StripLeft() noexcept;
/**
* Skip all whitespace at the end.
*/
void StripRight() noexcept;
void Strip() noexcept {
StripLeft();
StripRight();
}
};
struct StringView : BasicStringView<char> {
using BasicStringView::BasicStringView;
StringView() = default;
constexpr StringView(BasicStringView<value_type> src) noexcept
:BasicStringView(src) {}
};
#endif
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