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