124 lines
3.7 KiB
C++
124 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// IWYU pragma: private, include "nsString.h"
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/**
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* nsTDependentSubstring_CharT
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*
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* A string class which wraps an external array of string characters. It
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* is the client code's responsibility to ensure that the external buffer
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* remains valid for a long as the string is alive.
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*
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* NAMES:
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* nsDependentSubstring for wide characters
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* nsDependentCSubstring for narrow characters
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*/
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class nsTDependentSubstring_CharT : public nsTSubstring_CharT
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{
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public:
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typedef nsTDependentSubstring_CharT self_type;
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public:
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void Rebind(const substring_type&, uint32_t aStartPos,
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uint32_t aLength = size_type(-1));
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void Rebind(const char_type* aData, size_type aLength);
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void Rebind(const char_type* aStart, const char_type* aEnd)
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{
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Rebind(aStart, size_type(aEnd - aStart));
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}
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nsTDependentSubstring_CharT(const substring_type& aStr, uint32_t aStartPos,
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uint32_t aLength = size_type(-1))
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: substring_type()
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{
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Rebind(aStr, aStartPos, aLength);
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}
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nsTDependentSubstring_CharT(const char_type* aData, size_type aLength)
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: substring_type(const_cast<char_type*>(aData), aLength, F_NONE)
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{
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}
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nsTDependentSubstring_CharT(const char_type* aStart, const char_type* aEnd)
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: substring_type(const_cast<char_type*>(aStart), uint32_t(aEnd - aStart),
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F_NONE)
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{
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}
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#if defined(CharT_is_PRUnichar) && defined(MOZ_USE_CHAR16_WRAPPER)
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nsTDependentSubstring_CharT(char16ptr_t aData, size_type aLength)
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: nsTDependentSubstring_CharT(static_cast<const char16_t*>(aData), aLength)
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{
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}
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nsTDependentSubstring_CharT(char16ptr_t aStart, char16ptr_t aEnd)
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: nsTDependentSubstring_CharT(static_cast<const char16_t*>(aStart),
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static_cast<const char16_t*>(aEnd))
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{
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}
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#endif
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nsTDependentSubstring_CharT(const const_iterator& aStart,
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const const_iterator& aEnd)
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: substring_type(const_cast<char_type*>(aStart.get()),
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uint32_t(aEnd.get() - aStart.get()), F_NONE)
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{
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}
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// Create a nsTDependentSubstring to be bound later
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nsTDependentSubstring_CharT()
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: substring_type()
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{
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}
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// auto-generated copy-constructor OK (XXX really?? what about base class copy-ctor?)
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private:
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// NOT USED
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void operator=(const self_type&); // we're immutable, you can't assign into a substring
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};
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inline const nsTDependentSubstring_CharT
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Substring(const nsTSubstring_CharT& aStr, uint32_t aStartPos,
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uint32_t aLength = uint32_t(-1))
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{
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return nsTDependentSubstring_CharT(aStr, aStartPos, aLength);
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}
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inline const nsTDependentSubstring_CharT
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Substring(const nsReadingIterator<CharT>& aStart,
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const nsReadingIterator<CharT>& aEnd)
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{
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return nsTDependentSubstring_CharT(aStart.get(), aEnd.get());
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}
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inline const nsTDependentSubstring_CharT
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Substring(const CharT* aData, uint32_t aLength)
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{
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return nsTDependentSubstring_CharT(aData, aLength);
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}
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inline const nsTDependentSubstring_CharT
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Substring(const CharT* aStart, const CharT* aEnd)
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{
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return nsTDependentSubstring_CharT(aStart, aEnd);
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}
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inline const nsTDependentSubstring_CharT
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StringHead(const nsTSubstring_CharT& aStr, uint32_t aCount)
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{
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return nsTDependentSubstring_CharT(aStr, 0, aCount);
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}
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inline const nsTDependentSubstring_CharT
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StringTail(const nsTSubstring_CharT& aStr, uint32_t aCount)
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{
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return nsTDependentSubstring_CharT(aStr, aStr.Length() - aCount, aCount);
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}
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