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- //* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* vim:set ts=2 sw=2 sts=2 et cindent: */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla.
- *
- * The Initial Developer of the Original Code is IBM Corporation.
- * Portions created by IBM Corporation are Copyright (C) 2003
- * IBM Corporation. All Rights Reserved.
- *
- * Contributor(s):
- * Darin Fisher <darin@meer.net>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-
- /**
- * nsTSubstringTuple_CharT
- *
- * Represents a tuple of string fragments. Built as a recursive binary tree.
- * It is used to implement the concatenation of two or more string objects.
- *
- * NOTE: This class is a private implementation detail and should never be
- * referenced outside the string code.
- */
- class nsTSubstringTuple_CharT
- {
- public:
-
- typedef CharT char_type;
- typedef nsCharTraits<char_type> char_traits;
-
- typedef nsTSubstringTuple_CharT self_type;
- typedef nsTSubstring_CharT substring_type;
- #ifdef MOZ_V1_STRING_ABI
- typedef nsTAString_CharT base_string_type;
- typedef nsTObsoleteAString_CharT obsolete_string_type;
- #else
- typedef nsTSubstring_CharT base_string_type;
- #endif
- typedef PRUint32 size_type;
-
- public:
-
- nsTSubstringTuple_CharT(const base_string_type* a, const base_string_type* b)
- : mHead(nsnull)
- , mFragA(a)
- , mFragB(b) {}
-
- nsTSubstringTuple_CharT(const self_type& head, const base_string_type* b)
- : mHead(&head)
- , mFragA(nsnull) // this fragment is ignored when head != nsnull
- , mFragB(b) {}
-
- /**
- * computes the aggregate string length
- */
- NS_COM size_type Length() const;
-
- /**
- * writes the aggregate string to the given buffer. bufLen is assumed
- * to be equal to or greater than the value returned by the Length()
- * method. the string written to |buf| is not null-terminated.
- */
- NS_COM void WriteTo(char_type *buf, PRUint32 bufLen) const;
-
- /**
- * returns true if this tuple is dependent on (i.e., overlapping with)
- * the given char sequence.
- */
- NS_COM PRBool IsDependentOn(const char_type *start, const char_type *end) const;
-
- private:
-
- const self_type* mHead;
- const base_string_type* mFragA;
- const base_string_type* mFragB;
- };
-
- inline
- const nsTSubstringTuple_CharT
- operator+(const nsTSubstringTuple_CharT::base_string_type& a, const nsTSubstringTuple_CharT::base_string_type& b)
- {
- return nsTSubstringTuple_CharT(&a, &b);
- }
-
- inline
- const nsTSubstringTuple_CharT
- operator+(const nsTSubstringTuple_CharT& head, const nsTSubstringTuple_CharT::base_string_type& b)
- {
- return nsTSubstringTuple_CharT(head, &b);
- }
-