1 files changed, 113 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTSubstringTuple.h b/src/libs/xpcom18a4/xpcom/string/public/nsTSubstringTuple.h
new file mode 100644
index 00000000..2ded17d5
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTSubstringTuple.h
@@ -0,0 +1,113 @@
+/* -*- 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;
+      typedef nsTString_CharT            string_type;
+      typedef nsTAString_CharT           abstract_string_type;
+      typedef nsTObsoleteAString_CharT   obsolete_string_type;
+
+      typedef PRUint32                   size_type;
+
+    public:
+
+      nsTSubstringTuple_CharT(const abstract_string_type* a, const abstract_string_type* b)
+        : mHead(nsnull)
+        , mFragA(a)
+        , mFragB(b) {}
+
+      nsTSubstringTuple_CharT(const self_type& head, const abstract_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 abstract_string_type* mFragA;
+      const abstract_string_type* mFragB;
+  };
+
+inline
+const nsTSubstringTuple_CharT
+operator+(const nsTAString_CharT& a, const nsTAString_CharT& b)
+  {
+    return nsTSubstringTuple_CharT(&a, &b);
+  }
+
+inline
+const nsTSubstringTuple_CharT
+operator+(const nsTSubstringTuple_CharT& head, const nsTAString_CharT& b)
+  {
+    return nsTSubstringTuple_CharT(head, &b);
+  }