Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

32 files changed, 7104 insertions, 0 deletions

diff --git a/src/libs/xpcom18a4/xpcom/string/public/.cvsignore b/src/libs/xpcom18a4/xpcom/string/public/.cvsignore
new file mode 100644
index 00000000..f3c7a7c5
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/.cvsignore
@@ -0,0 +1 @@
+Makefile
diff --git a/src/libs/xpcom18a4/xpcom/string/public/Makefile.in b/src/libs/xpcom18a4/xpcom/string/public/Makefile.in
new file mode 100644
index 00000000..d3582bcc
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/Makefile.in
@@ -0,0 +1,86 @@
+# vim:set ts=8 sw=8 sts=8 noet:
+# 
+# ***** 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
+# Netscape Communications.
+# Portions created by the Initial Developer are Copyright (C) 2001
+# the Initial Developer. All Rights Reserved.
+#
+# Contributor(s):
+#   Johnny Stenback <jst@netscape.com> (original author)
+#   Scott Collins <scc@mozilla.org>
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either of 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 *****
+
+DEPTH		= ../../..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(DEPTH)/config/autoconf.mk
+
+MODULE		= string
+
+EXPORTS		=				\
+		nsAString.h			\
+		nsAlgorithm.h			\
+		nsCharTraits.h			\
+		nsDependentString.h		\
+		nsDependentSubstring.h		\
+		nsLiteralString.h		\
+		nsObsoleteAString.h		\
+		nsPrintfCString.h		\
+		nsPromiseFlatString.h		\
+		nsReadableUtils.h		\
+		nsString.h			\
+		nsStringFwd.h			\
+		nsStringIterator.h		\
+		nsSubstring.h			\
+		nsSubstringTuple.h		\
+		nsTAString.h			\
+		nsTDependentString.h		\
+		nsTDependentSubstring.h		\
+		nsTObsoleteAString.h		\
+		nsTPromiseFlatString.h		\
+		nsTString.h			\
+		nsTSubstring.h			\
+		nsTSubstringTuple.h		\
+		nsUTF8Utils.h			\
+		nsXPIDLString.h			\
+		string-template-def-unichar.h	\
+		string-template-def-char.h	\
+		string-template-undef.h		\
+		$(NULL)			
+
+SDK_HEADERS	=				\
+		nsStringAPI.h			\
+		nsEmbedString.h			\
+		$(NULL)
+
+include $(topsrcdir)/config/rules.mk
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsAString.h b/src/libs/xpcom18a4/xpcom/string/public/nsAString.h
new file mode 100644
index 00000000..3675989c
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsAString.h
@@ -0,0 +1,96 @@
+/* -*- 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 ***** */
+
+#ifndef nsAString_h___
+#define nsAString_h___
+
+#ifndef nsStringFwd_h___
+#include "nsStringFwd.h"
+#endif
+
+#ifndef nsStringIterator_h___
+#include "nsStringIterator.h"
+#endif
+
+#ifndef nsObsoleteAString_h___
+#include "nsObsoleteAString.h"
+#endif
+
+// If some platform(s) can't handle our template that matches literal strings,
+// then we'll disable it on those platforms.
+#ifndef NS_DISABLE_LITERAL_TEMPLATE
+#  if (defined(_MSC_VER) && (_MSC_VER < 1310)) || (defined(__SUNPRO_CC) & (__SUNPRO_CC < 0x560)) || (defined(__HP_aCC) && (__HP_aCC <= 012100))
+#    define NS_DISABLE_LITERAL_TEMPLATE
+#  endif
+#endif /* !NS_DISABLE_LITERAL_TEMPLATE */
+
+#include <string.h>
+
+  // declare nsAString
+#include "string-template-def-unichar.h"
+#include "nsTAString.h"
+#include "string-template-undef.h"
+
+
+  // declare nsACString
+#include "string-template-def-char.h"
+#include "nsTAString.h"
+#include "string-template-undef.h"
+
+
+  /**
+   * ASCII case-insensitive comparator.  (for Unicode case-insensitive
+   * comparision, see nsUnicharUtils.h)
+   */
+class NS_COM nsCaseInsensitiveCStringComparator
+    : public nsCStringComparator
+  {
+    public:
+      typedef char char_type;
+
+      virtual int operator()( const char_type*, const char_type*, PRUint32 length ) const;
+      virtual int operator()( char_type, char_type ) const;
+  };
+
+
+  // included here for backwards compatibility
+#ifndef nsSubstringTuple_h___
+#include "nsSubstringTuple.h"
+#endif
+
+#endif // !defined(nsAString_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsAlgorithm.h b/src/libs/xpcom18a4/xpcom/string/public/nsAlgorithm.h
new file mode 100644
index 00000000..e81e6f57
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsAlgorithm.h
@@ -0,0 +1,131 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of 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 ***** */
+
+#ifndef nsAlgorithm_h___
+#define nsAlgorithm_h___
+
+#ifndef nsCharTraits_h___
+#include "nsCharTraits.h"
+  // for |nsCharSourceTraits|, |nsCharSinkTraits|
+#endif
+
+#ifndef prtypes_h___
+#include "prtypes.h"
+  // for |PRUint32|...
+#endif
+
+#ifndef nsDebug_h___
+#include "nsDebug.h"
+  // for NS_ASSERTION
+#endif
+
+template <class T>
+inline
+const T&
+NS_MIN( const T& a, const T& b )
+  {
+    return b < a ? b : a;
+  }
+
+template <class T>
+inline
+const T&
+NS_MAX( const T& a, const T& b )
+  {
+    return a > b ? a : b;
+  }
+
+template <class InputIterator, class T>
+inline
+PRUint32
+NS_COUNT( InputIterator& first, const InputIterator& last, const T& value )
+  {
+    PRUint32 result = 0;
+    for ( ; first != last; ++first )
+      if ( *first == value )
+        ++result;
+    return result;
+  }
+
+template <class InputIterator, class OutputIterator>
+inline
+OutputIterator&
+copy_string( InputIterator& first, const InputIterator& last, OutputIterator& result )
+  {
+    typedef nsCharSourceTraits<InputIterator> source_traits;
+    typedef nsCharSinkTraits<OutputIterator>  sink_traits;
+
+    while ( first != last )
+      {
+        PRInt32 count_copied = PRInt32(sink_traits::write(result, source_traits::read(first), source_traits::readable_distance(first, last)));
+        NS_ASSERTION(count_copied > 0, "|copy_string| will never terminate");
+        source_traits::advance(first, count_copied);
+      }
+
+    return result;
+  }
+
+template <class InputIterator, class OutputIterator>
+OutputIterator&
+copy_string_backward( const InputIterator& first, InputIterator& last, OutputIterator& result )
+  {
+    while ( first != last )
+      {
+        last.normalize_backward();
+        result.normalize_backward();
+        PRUint32 lengthToCopy = PRUint32( NS_MIN(last.size_backward(), result.size_backward()) );
+        if ( first.fragment().mStart == last.fragment().mStart )
+          lengthToCopy = NS_MIN(lengthToCopy, PRUint32(last.get() - first.get()));
+
+        NS_ASSERTION(lengthToCopy, "|copy_string_backward| will never terminate");
+
+#ifdef _MSC_VER
+        // XXX Visual C++ can't stomach 'typename' where it rightfully should
+        nsCharTraits<OutputIterator::value_type>::move(result.get()-lengthToCopy, last.get()-lengthToCopy, lengthToCopy);
+#else
+        nsCharTraits<typename OutputIterator::value_type>::move(result.get()-lengthToCopy, last.get()-lengthToCopy, lengthToCopy);
+#endif
+
+        last.advance( -PRInt32(lengthToCopy) );
+        result.advance( -PRInt32(lengthToCopy) );
+      }
+
+    return result;
+  }
+
+#endif // !defined(nsAlgorithm_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsCharTraits.h b/src/libs/xpcom18a4/xpcom/string/public/nsCharTraits.h
new file mode 100644
index 00000000..e7713c95
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsCharTraits.h
@@ -0,0 +1,784 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of 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 ***** */
+
+#ifndef nsCharTraits_h___
+#define nsCharTraits_h___
+
+#include <ctype.h>
+  // for |EOF|, |WEOF|
+
+#define FORCED_CPP_2BYTE_WCHAR_T
+  // disable special optimizations for now through this hack
+
+#if defined(HAVE_CPP_2BYTE_WCHAR_T) && !defined(FORCED_CPP_2BYTE_WCHAR_T)
+#define USE_CPP_WCHAR_FUNCS
+#endif
+
+#ifdef USE_CPP_WCHAR_FUNCS
+#include <wchar.h>
+  // for |wmemset|, et al
+#endif
+
+#include <string.h>
+  // for |memcpy|, et al
+
+#ifndef nscore_h___
+#include "nscore.h"
+  // for |PRUnichar|
+#endif
+
+#ifndef nsDebug_h__
+#include "nsDebug.h"
+  // for NS_ASSERTION
+#endif
+
+#ifdef HAVE_CPP_BOOL
+  typedef bool nsCharTraits_bool;
+#else
+  typedef PRBool nsCharTraits_bool;
+#endif
+
+template <class CharT> struct nsCharTraits {};
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharTraits<PRUnichar>
+  {
+    typedef PRUnichar char_type;
+    typedef PRUint16  unsigned_char_type;
+    typedef char      incompatible_char_type;
+
+    NS_COM static const char_type *sEmptyBuffer;
+
+    static
+    void
+    assign( char_type& lhs, char_type rhs )
+      {
+        lhs = rhs;
+      }
+
+
+      // integer representation of characters:
+
+#ifdef USE_CPP_WCHAR_FUNCS
+    typedef wint_t int_type;
+#else
+    typedef int int_type;
+#endif
+
+    static
+    char_type
+    to_char_type( int_type c )
+      {
+        return char_type(c);
+      }
+
+    static
+    int_type
+    to_int_type( char_type c )
+      {
+        return int_type( NS_STATIC_CAST(unsigned_char_type, c) );
+      }
+
+    static
+    nsCharTraits_bool
+    eq_int_type( int_type lhs, int_type rhs )
+      {
+        return lhs == rhs;
+      }
+
+
+      // |char_type| comparisons:
+
+    static
+    nsCharTraits_bool
+    eq( char_type lhs, char_type rhs )
+      {
+        return lhs == rhs;
+      }
+
+    static
+    nsCharTraits_bool
+    lt( char_type lhs, char_type rhs )
+      {
+        return lhs < rhs;
+      }
+
+
+      // operations on s[n] arrays:
+
+    static
+    char_type*
+    move( char_type* s1, const char_type* s2, size_t n )
+      {
+        return NS_STATIC_CAST(char_type*, memmove(s1, s2, n * sizeof(char_type)));
+      }
+
+    static
+    char_type*
+    copy( char_type* s1, const char_type* s2, size_t n )
+      {
+        return NS_STATIC_CAST(char_type*, memcpy(s1, s2, n * sizeof(char_type)));
+      }
+
+    static
+    char_type*
+    copyASCII( char_type* s1, const char* s2, size_t n )
+      {
+        for (char_type* s = s1; n--; ++s, ++s2) {
+          NS_ASSERTION(!(*s2 & ~0x7F), "Unexpected non-ASCII character");
+          *s = *s2;
+        }
+        return s1;
+      }
+
+    static
+    char_type*
+    assign( char_type* s, size_t n, char_type c )
+      {
+#ifdef USE_CPP_WCHAR_FUNCS
+        return NS_STATIC_CAST(char_type*, wmemset(s, to_int_type(c), n));
+#else
+        char_type* result = s;
+        while ( n-- )
+          assign(*s++, c);
+        return result;
+#endif
+      }
+
+    static
+    int
+    compare( const char_type* s1, const char_type* s2, size_t n )
+      {
+#ifdef USE_CPP_WCHAR_FUNCS
+        return wmemcmp(s1, s2, n);
+#else
+        for ( ; n--; ++s1, ++s2 )
+          {
+            if ( !eq(*s1, *s2) )
+              return to_int_type(*s1) - to_int_type(*s2);
+          }
+
+        return 0;
+#endif
+      }
+
+    static
+    int
+    compareASCII( const char_type* s1, const char* s2, size_t n )
+      {
+        for ( ; n--; ++s1, ++s2 )
+          {
+            NS_ASSERTION(!(*s2 & ~0x7F), "Unexpected non-ASCII character");
+            if ( !eq_int_type(to_int_type(*s1), to_int_type(*s2)) )
+              return to_int_type(*s1) - to_int_type(*s2);
+          }
+
+        return 0;
+      }
+
+    // this version assumes that s2 is null-terminated and s1 has length n.
+    // if s1 is shorter than s2 then we return -1; if s1 is longer than s2,
+    // we return 1.
+    static
+    int
+    compareASCIINullTerminated( const char_type* s1, size_t n, const char* s2 )
+      {
+        for ( ; n--; ++s1, ++s2 )
+          {
+            if ( !*s2 )
+              return 1;
+            NS_ASSERTION(!(*s2 & ~0x7F), "Unexpected non-ASCII character");
+            if ( !eq_int_type(to_int_type(*s1), to_int_type(*s2)) )
+              return to_int_type(*s1) - to_int_type(*s2);
+          }
+
+        if ( *s2 )
+          return -1;
+
+        return 0;
+      }
+
+    /**
+     * Convert c to its lower-case form, but only if the lower-case form is
+     * ASCII. Otherwise leave it alone.
+     *
+     * There are only two non-ASCII Unicode characters whose lowercase
+     * equivalents are ASCII: KELVIN SIGN and LATIN CAPITAL LETTER I WITH
+     * DOT ABOVE. So it's a simple matter to handle those explicitly.
+     */
+    static
+    char_type
+    ASCIIToLower( char_type c )
+      {
+        if (c < 0x100)
+          return (c >= 'A' && c <= 'Z') ? c + ('a' - 'A') : c;
+        else
+          {
+            if (c == 0x212A) // KELVIN SIGN
+              return 'k';
+            if (c == 0x0130) // LATIN CAPITAL LETTER I WITH DOT ABOVE
+              return 'i';
+            return c;
+          }
+      }
+
+    static
+    int
+    compareLowerCaseToASCII( const char_type* s1, const char* s2, size_t n )
+      {
+        for ( ; n--; ++s1, ++s2 )
+          {
+            NS_ASSERTION(!(*s2 & ~0x7F), "Unexpected non-ASCII character");
+            NS_ASSERTION(!(*s2 >= 'A' && *s2 <= 'Z'),
+                         "Unexpected uppercase character");
+            char_type lower_s1 = ASCIIToLower(*s1);
+            if ( lower_s1 != to_char_type(*s2) )
+              return to_int_type(lower_s1) - to_int_type(*s2);
+          }
+
+        return 0;
+      }
+
+    // this version assumes that s2 is null-terminated and s1 has length n.
+    // if s1 is shorter than s2 then we return -1; if s1 is longer than s2,
+    // we return 1.
+    static
+    int
+    compareLowerCaseToASCIINullTerminated( const char_type* s1, size_t n, const char* s2 )
+      {
+        for ( ; n--; ++s1, ++s2 )
+          {
+            if ( !*s2 )
+              return 1;
+            NS_ASSERTION(!(*s2 & ~0x7F), "Unexpected non-ASCII character");
+            NS_ASSERTION(!(*s2 >= 'A' && *s2 <= 'Z'),
+                         "Unexpected uppercase character");
+            char_type lower_s1 = ASCIIToLower(*s1);
+            if ( lower_s1 != to_char_type(*s2) )
+              return to_int_type(lower_s1) - to_int_type(*s2);
+          }
+
+        if ( *s2 )
+          return -1;
+
+        return 0;
+      }
+
+    static
+    size_t
+    length( const char_type* s )
+      {
+#ifdef USE_CPP_WCHAR_FUNCS
+        return wcslen(s);
+#else
+        size_t result = 0;
+        while ( !eq(*s++, char_type(0)) )
+          ++result;
+        return result;
+#endif
+      }
+
+    static
+    const char_type*
+    find( const char_type* s, size_t n, char_type c )
+      {
+#ifdef USE_CPP_WCHAR_FUNCS
+        return NS_REINTERPRET_CAST(const char_type*, wmemchr(s, to_int_type(c), n));
+#else
+        while ( n-- )
+          {
+            if ( eq(*s, c) )
+              return s;
+            ++s;
+          }
+
+        return 0;
+#endif
+      }
+
+#if 0
+      // I/O related:
+
+    typedef streamoff off_type;
+    typedef streampos pos_type;
+    typedef mbstate_t state_type;
+
+    static
+    int_type
+    eof()
+      {
+#ifdef USE_CPP_WCHAR_FUNCS
+        return WEOF;
+#else
+        return EOF;
+#endif
+      }
+
+    static
+    int_type
+    not_eof( int_type c )
+      {
+        return eq_int_type(c, eof()) ? ~eof() : c;
+      }
+
+    // static state_type get_state( pos_type );
+#endif
+  };
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharTraits<char>
+  {
+    typedef char           char_type;
+    typedef unsigned char  unsigned_char_type;
+    typedef PRUnichar      incompatible_char_type;
+
+    NS_COM static const char_type *sEmptyBuffer;
+
+    static
+    void
+    assign( char_type& lhs, char_type rhs )
+      {
+        lhs = rhs;
+      }
+
+
+      // integer representation of characters:
+
+    typedef int int_type;
+
+    static
+    char_type
+    to_char_type( int_type c )
+      {
+        return char_type(c);
+      }
+
+    static
+    int_type
+    to_int_type( char_type c )
+      {
+        return int_type( NS_STATIC_CAST(unsigned_char_type, c) );
+      }
+
+    static
+    nsCharTraits_bool
+    eq_int_type( int_type lhs, int_type rhs )
+      {
+        return lhs == rhs;
+      }
+
+
+      // |char_type| comparisons:
+
+    static
+    nsCharTraits_bool
+    eq( char_type lhs, char_type rhs )
+      {
+        return lhs == rhs;
+      }
+
+    static
+    nsCharTraits_bool
+    lt( char_type lhs, char_type rhs )
+      {
+        return lhs < rhs;
+      }
+
+
+      // operations on s[n] arrays:
+
+    static
+    char_type*
+    move( char_type* s1, const char_type* s2, size_t n )
+      {
+        return NS_STATIC_CAST(char_type*, memmove(s1, s2, n * sizeof(char_type)));
+      }
+
+    static
+    char_type*
+    copy( char_type* s1, const char_type* s2, size_t n )
+      {
+        return NS_STATIC_CAST(char_type*, memcpy(s1, s2, n * sizeof(char_type)));
+      }
+
+    static
+    char_type*
+    copyASCII( char_type* s1, const char* s2, size_t n )
+      {
+        return copy(s1, s2, n);
+      }
+
+    static
+    char_type*
+    assign( char_type* s, size_t n, char_type c )
+      {
+        return NS_STATIC_CAST(char_type*, memset(s, to_int_type(c), n));
+      }
+
+    static
+    int
+    compare( const char_type* s1, const char_type* s2, size_t n )
+      {
+        return memcmp(s1, s2, n);
+      }
+
+    static
+    int
+    compareASCII( const char_type* s1, const char* s2, size_t n )
+      {
+#ifdef DEBUG
+        for (size_t i = 0; i < n; ++i)
+          {
+            NS_ASSERTION(!(s2[i] & ~0x7F), "Unexpected non-ASCII character");
+          }
+#endif
+        return compare(s1, s2, n);
+      }
+
+    // this version assumes that s2 is null-terminated and s1 has length n.
+    // if s1 is shorter than s2 then we return -1; if s1 is longer than s2,
+    // we return 1.
+    static
+    int
+    compareASCIINullTerminated( const char_type* s1, size_t n, const char* s2 )
+      {
+        // can't use strcmp here because we don't want to stop when s1
+        // contains a null
+        for ( ; n--; ++s1, ++s2 )
+          {
+            if ( !*s2 )
+              return 1;
+            NS_ASSERTION(!(*s2 & ~0x7F), "Unexpected non-ASCII character");
+            if ( *s1 != *s2 )
+              return to_int_type(*s1) - to_int_type(*s2);
+          }
+
+        if ( *s2 )
+          return -1;
+
+        return 0;
+      }
+
+    /**
+     * Convert c to its lower-case form, but only if c is ASCII.
+     */
+    static
+    char_type
+    ASCIIToLower( char_type c )
+      {
+        return (c >= 'A' && c <= 'Z') ? (c + ('a' - 'A')) : c;
+      }
+
+    static
+    int
+    compareLowerCaseToASCII( const char_type* s1, const char* s2, size_t n )
+      {
+        for ( ; n--; ++s1, ++s2 )
+          {
+            NS_ASSERTION(!(*s2 & ~0x7F), "Unexpected non-ASCII character");
+            NS_ASSERTION(!(*s2 >= 'A' && *s2 <= 'Z'),
+                         "Unexpected uppercase character");
+            char_type lower_s1 = ASCIIToLower(*s1);
+            if ( lower_s1 != *s2 )
+              return to_int_type(lower_s1) - to_int_type(*s2);
+          }
+        return 0;
+      }
+
+    // this version assumes that s2 is null-terminated and s1 has length n.
+    // if s1 is shorter than s2 then we return -1; if s1 is longer than s2,
+    // we return 1.
+    static
+    int
+    compareLowerCaseToASCIINullTerminated( const char_type* s1, size_t n, const char* s2 )
+      {
+        for ( ; n--; ++s1, ++s2 )
+          {
+            if ( !*s2 )
+              return 1;
+            NS_ASSERTION(!(*s2 & ~0x7F), "Unexpected non-ASCII character");
+            NS_ASSERTION(!(*s2 >= 'A' && *s2 <= 'Z'),
+                         "Unexpected uppercase character");
+            char_type lower_s1 = ASCIIToLower(*s1);
+            if ( lower_s1 != *s2 )
+              return to_int_type(lower_s1) - to_int_type(*s2);
+          }
+
+        if ( *s2 )
+          return -1;
+
+        return 0;
+      }
+
+    static
+    size_t
+    length( const char_type* s )
+      {
+        return strlen(s);
+      }
+
+    static
+    const char_type*
+    find( const char_type* s, size_t n, char_type c )
+      {
+        return NS_REINTERPRET_CAST(const char_type*, memchr(s, to_int_type(c), n));
+      }
+
+#if 0
+      // I/O related:
+
+    typedef streamoff off_type;
+    typedef streampos pos_type;
+    typedef mbstate_t state_type;
+
+    static
+    int_type
+    eof()
+      {
+        return EOF;
+      }
+
+    static
+    int_type
+    not_eof( int_type c )
+      {
+        return eq_int_type(c, eof()) ? ~eof() : c;
+      }
+
+    // static state_type get_state( pos_type );
+#endif
+  };
+
+template <class InputIterator>
+struct nsCharSourceTraits
+  {
+    typedef typename InputIterator::difference_type difference_type;
+
+    static
+    PRUint32
+    readable_distance( const InputIterator& first, const InputIterator& last )
+      {
+        // assumes single fragment
+        return last.get() - first.get();
+      }
+
+    static
+    const typename InputIterator::value_type*
+    read( const InputIterator& iter )
+      {
+        return iter.get();
+      }
+
+    static
+    void
+    advance( InputIterator& s, difference_type n )
+      {
+        s.advance(n);
+      }
+  };
+
+#ifdef HAVE_CPP_PARTIAL_SPECIALIZATION
+
+template <class CharT>
+struct nsCharSourceTraits<CharT*>
+  {
+    typedef ptrdiff_t difference_type;
+
+    static
+    PRUint32
+    readable_distance( CharT* s )
+      {
+        return PRUint32(nsCharTraits<CharT>::length(s));
+//      return numeric_limits<PRUint32>::max();
+      }
+
+    static
+    PRUint32
+    readable_distance( CharT* first, CharT* last )
+      {
+        return PRUint32(last-first);
+      }
+
+    static
+    const CharT*
+    read( CharT* s )
+      {
+        return s;
+      }
+
+    static
+    void
+    advance( CharT*& s, difference_type n )
+      {
+        s += n;
+      }
+  };
+
+#else
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharSourceTraits<const char*>
+  {
+    typedef ptrdiff_t difference_type;
+
+    static
+    PRUint32
+    readable_distance( const char* s )
+      {
+        return PRUint32(nsCharTraits<char>::length(s));
+//      return numeric_limits<PRUint32>::max();
+      }
+
+    static
+    PRUint32
+    readable_distance( const char* first, const char* last )
+      {
+        return PRUint32(last-first);
+      }
+
+    static
+    const char*
+    read( const char* s )
+      {
+        return s;
+      }
+
+    static
+    void
+    advance( const char*& s, difference_type n )
+      {
+        s += n;
+      }
+ };
+
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharSourceTraits<const PRUnichar*>
+  {
+    typedef ptrdiff_t difference_type;
+
+    static
+    PRUint32
+    readable_distance( const PRUnichar* s )
+      {
+        return PRUint32(nsCharTraits<PRUnichar>::length(s));
+//      return numeric_limits<PRUint32>::max();
+      }
+
+    static
+    PRUint32
+    readable_distance( const PRUnichar* first, const PRUnichar* last )
+      {
+        return PRUint32(last-first);
+      }
+
+    static
+    const PRUnichar*
+    read( const PRUnichar* s )
+      {
+        return s;
+      }
+
+    static
+    void
+    advance( const PRUnichar*& s, difference_type n )
+      {
+        s += n;
+      }
+ };
+
+#endif
+
+
+template <class OutputIterator>
+struct nsCharSinkTraits
+  {
+    static
+    PRUint32
+    write( OutputIterator& iter, const typename OutputIterator::value_type* s, PRUint32 n )
+      {
+        return iter.write(s, n);
+      }
+  };
+
+#ifdef HAVE_CPP_PARTIAL_SPECIALIZATION
+
+template <class CharT>
+struct nsCharSinkTraits<CharT*>
+  {
+    static
+    PRUint32
+    write( CharT*& iter, const CharT* s, PRUint32 n )
+      {
+        nsCharTraits<CharT>::move(iter, s, n);
+        iter += n;
+        return n;
+      }
+  };
+
+#else
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharSinkTraits<char*>
+  {
+    static
+    PRUint32
+    write( char*& iter, const char* s, PRUint32 n )
+      {
+        nsCharTraits<char>::move(iter, s, n);
+        iter += n;
+        return n;
+      }
+  };
+
+NS_SPECIALIZE_TEMPLATE
+struct nsCharSinkTraits<PRUnichar*>
+  {
+    static
+    PRUint32
+    write( PRUnichar*& iter, const PRUnichar* s, PRUint32 n )
+      {
+        nsCharTraits<PRUnichar>::move(iter, s, n);
+        iter += n;
+        return n;
+      }
+  };
+
+#endif
+
+#endif // !defined(nsCharTraits_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsDependentString.h b/src/libs/xpcom18a4/xpcom/string/public/nsDependentString.h
new file mode 100644
index 00000000..22e05b31
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsDependentString.h
@@ -0,0 +1,60 @@
+/* -*- 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 ***** */
+
+#ifndef nsDependentString_h___
+#define nsDependentString_h___
+
+#ifndef nsString_h___
+#include "nsString.h"
+#endif
+
+#ifndef nsDebug_h___
+#include "nsDebug.h"
+#endif
+
+  // declare nsDependentString
+#include "string-template-def-unichar.h"
+#include "nsTDependentString.h"
+#include "string-template-undef.h"
+
+  // declare nsDependentCString
+#include "string-template-def-char.h"
+#include "nsTDependentString.h"
+#include "string-template-undef.h"
+
+#endif /* !defined(nsDependentString_h___) */
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsDependentSubstring.h b/src/libs/xpcom18a4/xpcom/string/public/nsDependentSubstring.h
new file mode 100644
index 00000000..c6459436
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsDependentSubstring.h
@@ -0,0 +1,56 @@
+/* -*- 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 ***** */
+
+#ifndef nsDependentSubstring_h___
+#define nsDependentSubstring_h___
+
+#ifndef nsSubstring_h___
+#include "nsSubstring.h"
+#endif
+
+  // declare nsDependentSubstring
+#include "string-template-def-unichar.h"
+#include "nsTDependentSubstring.h"
+#include "string-template-undef.h"
+
+  // declare nsDependentCSubstring
+#include "string-template-def-char.h"
+#include "nsTDependentSubstring.h"
+#include "string-template-undef.h"
+
+#endif /* !defined(nsDependentSubstring_h___) */
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsEmbedString.h b/src/libs/xpcom18a4/xpcom/string/public/nsEmbedString.h
new file mode 100644
index 00000000..7af03ee3
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsEmbedString.h
@@ -0,0 +1,158 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** 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 a small implementation of the nsAString and nsACString.
+ *
+ * The Initial Developer of the Original Code is
+ *   Peter Annema <jaggernaut@netscape.com>.
+ *
+ * Portions created by the Initial Developer are Copyright (C) 2002
+ * the Initial Developer. 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 ***** */
+
+#ifndef nsEmbedString_h___
+#define nsEmbedString_h___
+
+#include "nsStringAPI.h"
+
+class nsEmbedString : public nsStringContainer
+  {
+    public:
+      typedef nsEmbedString    self_type;
+      typedef nsAString        abstract_string_type;
+
+      nsEmbedString()
+        {
+          NS_StringContainerInit(*this);
+        }
+
+      nsEmbedString(const self_type& aString)
+#ifdef VBOX
+            : nsStringContainer()
+#endif
+        {
+          NS_StringContainerInit(*this);
+          NS_StringCopy(*this, aString);
+        }
+
+      explicit
+      nsEmbedString(const abstract_string_type& aReadable)
+        {
+          NS_StringContainerInit(*this);
+          NS_StringCopy(*this, aReadable);
+        }
+
+      explicit
+      nsEmbedString(const char_type* aData, size_type aLength = PR_UINT32_MAX)
+        {
+          NS_StringContainerInit(*this);
+          NS_StringSetData(*this, aData, aLength);
+        }
+
+      ~nsEmbedString()
+        {
+          NS_StringContainerFinish(*this);
+        }
+
+      const char_type* get() const
+        {
+          const char_type* data;
+          NS_StringGetData(*this, &data);
+          return data;
+        }
+
+      self_type& operator=(const self_type& aString)              { Assign(aString);   return *this; }
+      self_type& operator=(const abstract_string_type& aReadable) { Assign(aReadable); return *this; }
+      self_type& operator=(const char_type* aPtr)                 { Assign(aPtr);      return *this; }
+      self_type& operator=(char_type aChar)                       { Assign(aChar);     return *this; }
+  };
+
+class nsEmbedCString : public nsCStringContainer
+  {
+    public:
+      typedef nsEmbedCString   self_type;
+      typedef nsACString       abstract_string_type;
+
+      nsEmbedCString()
+#ifdef VBOX
+            : nsCStringContainer()
+#endif
+        {
+          NS_CStringContainerInit(*this);
+        }
+
+      nsEmbedCString(const self_type& aString)
+#ifdef VBOX
+            : nsCStringContainer()
+#endif
+        {
+          NS_CStringContainerInit(*this);
+          NS_CStringCopy(*this, aString);
+        }
+
+      explicit
+      nsEmbedCString(const abstract_string_type& aReadable)
+#ifdef VBOX
+            : nsCStringContainer()
+#endif
+        {
+          NS_CStringContainerInit(*this);
+          NS_CStringCopy(*this, aReadable);
+        }
+
+      explicit
+      nsEmbedCString(const char_type* aData, size_type aLength = PR_UINT32_MAX)
+#ifdef VBOX
+            : nsCStringContainer()
+#endif
+        {
+          NS_CStringContainerInit(*this);
+          NS_CStringSetData(*this, aData, aLength);
+        }
+
+      ~nsEmbedCString()
+        {
+          NS_CStringContainerFinish(*this);
+        }
+
+      const char_type* get() const
+        {
+          const char_type* data;
+          NS_CStringGetData(*this, &data);
+          return data;
+        }
+
+      self_type& operator=(const self_type& aString)              { Assign(aString);   return *this; }
+      self_type& operator=(const abstract_string_type& aReadable) { Assign(aReadable); return *this; }
+      self_type& operator=(const char_type* aPtr)                 { Assign(aPtr);      return *this; }
+      self_type& operator=(char_type aChar)                       { Assign(aChar);     return *this; }
+  };
+
+#endif // !defined(nsEmbedString_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsLiteralString.h b/src/libs/xpcom18a4/xpcom/string/public/nsLiteralString.h
new file mode 100644
index 00000000..ba536297
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsLiteralString.h
@@ -0,0 +1,116 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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
+ * Netscape Communications.
+ * Portions created by the Initial Developer are Copyright (C) 2001
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of 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 ***** */
+
+#ifndef nsLiteralString_h___
+#define nsLiteralString_h___
+
+#ifndef nscore_h___
+#include "nscore.h"
+#endif
+
+#ifndef nsDependentString_h___
+#include "nsDependentString.h"
+#endif
+
+
+#if 0
+inline
+const nsDependentString
+literal_string( const nsAString::char_type* aPtr )
+  {
+    return nsDependentString(aPtr);
+  }
+
+inline
+const nsDependentString
+literal_string( const nsAString::char_type* aPtr, PRUint32 aLength )
+  {
+    return nsDependentString(aPtr, aLength);
+  }
+
+inline
+const nsDependentCString
+literal_string( const nsACString::char_type* aPtr )
+  {
+    return nsDependentCString(aPtr);
+  }
+
+inline
+const nsDependentCString
+literal_string( const nsACString::char_type* aPtr, PRUint32 aLength )
+  {
+    return nsDependentCString(aPtr, aLength);
+  }
+#endif
+
+#ifdef HAVE_CPP_2BYTE_WCHAR_T
+  #define NS_LL(s)                                L##s
+  #define NS_MULTILINE_LITERAL_STRING(s)          nsDependentString(NS_REINTERPRET_CAST(const nsAString::char_type*, s), PRUint32((sizeof(s)/sizeof(wchar_t))-1))
+  #define NS_MULTILINE_LITERAL_STRING_INIT(n,s)   n(NS_REINTERPRET_CAST(const nsAString::char_type*, s), PRUint32((sizeof(s)/sizeof(wchar_t))-1))
+  #define NS_NAMED_MULTILINE_LITERAL_STRING(n,s)  const nsDependentString n(NS_REINTERPRET_CAST(const nsAString::char_type*, s), PRUint32((sizeof(s)/sizeof(wchar_t))-1))
+  typedef nsDependentString nsLiteralString;
+#else
+  #define NS_LL(s)                                s
+  #define NS_MULTILINE_LITERAL_STRING(s)          NS_ConvertASCIItoUTF16(s, PRUint32(sizeof(s)-1))
+  #define NS_MULTILINE_LITERAL_STRING_INIT(n,s)   n(s, PRUint32(sizeof(s)-1))
+  #define NS_NAMED_MULTILINE_LITERAL_STRING(n,s)  const NS_ConvertASCIItoUTF16 n(s, PRUint32(sizeof(s)-1))
+  typedef NS_ConvertASCIItoUTF16 nsLiteralString;
+#endif
+
+/*
+ * Macro arguments used in concatenation or stringification won't be expanded.
+ * Therefore, in order for |NS_L(FOO)| to work as expected (which is to expand
+ * |FOO| before doing whatever |NS_L| needs to do to it) a helper macro needs
+ * to be inserted in between to allow the macro argument to expand.
+ * See "3.10.6 Separate Expansion of Macro Arguments" of the CPP manual for a
+ * more accurate and precise explanation.
+ */
+
+#define NS_L(s)                                   NS_LL(s)
+
+#define NS_LITERAL_STRING(s)                      NS_STATIC_CAST(const nsAFlatString&, NS_MULTILINE_LITERAL_STRING(NS_LL(s)))
+#define NS_LITERAL_STRING_INIT(n,s)               NS_MULTILINE_LITERAL_STRING_INIT(n, NS_LL(s))
+#define NS_NAMED_LITERAL_STRING(n,s)              NS_NAMED_MULTILINE_LITERAL_STRING(n, NS_LL(s))
+
+#define NS_LITERAL_CSTRING(s)                     NS_STATIC_CAST(const nsDependentCString&, nsDependentCString(s, PRUint32(sizeof(s)-1)))
+#define NS_LITERAL_CSTRING_INIT(n,s)              n(s, PRUint32(sizeof(s)-1))
+#define NS_NAMED_LITERAL_CSTRING(n,s)             const nsDependentCString n(s, PRUint32(sizeof(s)-1))
+
+typedef nsDependentCString nsLiteralCString;
+
+#endif /* !defined(nsLiteralString_h___) */
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsObsoleteAString.h b/src/libs/xpcom18a4/xpcom/string/public/nsObsoleteAString.h
new file mode 100644
index 00000000..00d5892e
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsObsoleteAString.h
@@ -0,0 +1,102 @@
+/* -*- 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 ***** */
+
+#ifndef nsObsoleteAString_h___
+#define nsObsoleteAString_h___
+
+/*
+    STRING INTERNALS
+
+    This file defines nsObsoleteAString and nsObsoleteACString.  These are
+    abstract classes (interfaces), containing only virtual functions
+    corresponding to the FROZEN nsA[C]String classes.  They exist to provide
+    the new non-abstract nsA[C]String classes with a mechanism to maintain
+    backwards binary compatability.
+
+    From a binary point-of-view, the new nsA[C]String classes appear to have a
+    vtable pointer to the vtable of nsObsoleteA[C]StringThunk.
+    nsObsoleteA[C]StringThunk is a subclass of nsObsoleteA[C]String that serves
+    as a simple bridge between the virtual functions that make up the FROZEN
+    nsA[C]String contract and the new ns[C]Substring, which is now our only
+    subclass of nsA[C]String.
+
+    The methods on the new nsA[C]String are now all non-virtual.  This reduces
+    codesize at the callsite, and reduces the number of memory dereferences and
+    jumps required to invoke a method on nsA[C]String.  The result is improved
+    performance and reduced codesize.  However, to maintain binary
+    compatibility, each method on nsA[C]String must check the value of its
+    vtable to determine if it corresponds to the built-in implementation of
+    nsObsoleteA[C]String (i.e., the address of the canonical vtable).  If it
+    does, then the vtable can be ignored, and the nsA[C]String object (i.e.,
+    |this|) can be cast to ns[C]Substring directly.  In which case, the
+    nsA[C]String methods can be satisfied by invoking the corresponding methods
+    directly on ns[C]Substring.  If the vtable address does not correspond to
+    the built-in implementation, then the virtual functions on
+    nsObsoleteA[C]String must be invoked instead.
+
+    So, if a nsA[C]String reference corresponds to an external implementation
+    (such as the old nsEmbed[C]String that shipped with previous versions of
+    Mozilla), then methods invoked on that nsA[C]String will still act like
+    virtual function calls.  This ensures binary compatibility while avoiding
+    virtual function calls in most cases.
+
+    Finally, nsObsoleteA[C]String (i.e., the FROZEN nsA[C]String vtable) is
+    now a DEPRECATED interface.  See nsStringAPI.h and nsEmbedString.h for
+    the new preferred way to access nsA[C]String references in an external
+    component or Gecko embedding application.
+                                                                             */
+
+#ifndef nsStringFwd_h___
+#include "nsStringFwd.h"
+#endif
+
+#ifndef nscore_h___
+#include "nscore.h"
+#endif
+
+  // declare nsObsoleteAString
+#include "string-template-def-unichar.h"
+#include "nsTObsoleteAString.h"
+#include "string-template-undef.h"
+
+  // declare nsObsoleteACString
+#include "string-template-def-char.h"
+#include "nsTObsoleteAString.h"
+#include "string-template-undef.h"
+
+#endif // !defined(nsObsoleteAString_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsPrintfCString.h b/src/libs/xpcom18a4/xpcom/string/public/nsPrintfCString.h
new file mode 100644
index 00000000..3f3d04d3
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsPrintfCString.h
@@ -0,0 +1,87 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1994-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of 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 ***** */
+
+#ifndef nsPrintfCString_h___
+#define nsPrintfCString_h___
+ 
+#ifndef nsString_h___
+#include "nsString.h"
+#endif
+
+
+  /**
+   * |nsPrintfCString| lets you use a formated |printf| string as an |const nsACString|.
+   *
+   *   myCStr += nsPrintfCString("%f", 13.917);
+   *     // ...a general purpose substitute for |AppendFloat|
+   *
+   * For longer patterns, you'll want to use the constructor that takes a length
+   *
+   *   nsPrintfCString(128, "%f, %f, %f, %f, %f, %f, %f, %i, %f", x, y, z, 3.2, j, k, l, 3, 3.1);
+   *
+   * Exceding the default size (which you must specify in the constructor, it is not determined)
+   * causes an allocation, so avoid that.  If your formatted string exceeds the allocated space, it is
+   * cut off at the size of the buffer, no error is reported (and no out-of-bounds writing occurs).
+   * This class is intended to be useful for numbers and short
+   * strings, not arbitrary formatting of other strings (e.g., with %s).  There is currently no
+   * wide version of this class, since wide |printf| is not generally available.  That means
+   * to get a wide version of your formatted data, you must, e.g.,
+   *
+   *   CopyASCIItoUTF16(nsPrintfCString("%f", 13.917"), myStr);
+   *
+   * That's another good reason to avoid this class for anything but numbers ... as strings can be
+   * much more efficiently handled with |NS_LITERAL_[C]STRING| and |nsLiteral[C]String|.
+   */
+
+class NS_COM nsPrintfCString : public nsCString
+  {
+    typedef nsCString string_type;
+
+    enum { kLocalBufferSize=15 };
+      // ought to be large enough for most things ... a |long long| needs at most 20 (so you'd better ask)
+      //  pinkerton suggests 7.  We should measure and decide what's appropriate
+
+    public:
+      // XXX don't these need to be declared CDECL ??
+      explicit nsPrintfCString( const char_type* format, ... );
+      nsPrintfCString( size_type n, const char_type* format, ...);
+
+    private:
+      char_type  mLocalBuffer[ kLocalBufferSize + 1 ];
+  };
+
+#endif // !defined(nsPrintfCString_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsPromiseFlatString.h b/src/libs/xpcom18a4/xpcom/string/public/nsPromiseFlatString.h
new file mode 100644
index 00000000..b98aa1a2
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsPromiseFlatString.h
@@ -0,0 +1,56 @@
+/* -*- 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 ***** */
+
+#ifndef nsPromiseFlatString_h___
+#define nsPromiseFlatString_h___
+
+#ifndef nsString_h___
+#include "nsString.h"
+#endif
+
+  // declare nsPromiseFlatString
+#include "string-template-def-unichar.h"
+#include "nsTPromiseFlatString.h"
+#include "string-template-undef.h"
+
+  // declare nsPromiseFlatCString
+#include "string-template-def-char.h"
+#include "nsTPromiseFlatString.h"
+#include "string-template-undef.h"
+
+#endif /* !defined(nsPromiseFlatString_h___) */
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsReadableUtils.h b/src/libs/xpcom18a4/xpcom/string/public/nsReadableUtils.h
new file mode 100644
index 00000000..13f94c09
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsReadableUtils.h
@@ -0,0 +1,370 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *   Johnny Stenbeck <jst@netscape.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of 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 ***** */
+
+#ifndef nsReadableUtils_h___
+#define nsReadableUtils_h___
+
+  /**
+   * I guess all the routines in this file are all mis-named.
+   * According to our conventions, they should be |NS_xxx|.
+   */
+
+#ifndef nsAString_h___
+#include "nsAString.h"
+#endif
+
+inline size_t Distance( const nsReadingIterator<PRUnichar>& start, const nsReadingIterator<PRUnichar>& end )
+  {
+    return end.get() - start.get();
+  }
+inline size_t Distance( const nsReadingIterator<char>& start, const nsReadingIterator<char>& end )
+  {
+    return end.get() - start.get();
+  }
+
+NS_COM void LossyCopyUTF16toASCII( const nsAString& aSource, nsACString& aDest );
+NS_COM void CopyASCIItoUTF16( const nsACString& aSource, nsAString& aDest );
+
+NS_COM void LossyCopyUTF16toASCII( const PRUnichar* aSource, nsACString& aDest );
+NS_COM void CopyASCIItoUTF16( const char* aSource, nsAString& aDest );
+
+NS_COM void CopyUTF16toUTF8( const nsAString& aSource, nsACString& aDest );
+NS_COM void CopyUTF8toUTF16( const nsACString& aSource, nsAString& aDest );
+
+NS_COM void CopyUTF16toUTF8( const PRUnichar* aSource, nsACString& aDest );
+NS_COM void CopyUTF8toUTF16( const char* aSource, nsAString& aDest );
+
+NS_COM void LossyAppendUTF16toASCII( const nsAString& aSource, nsACString& aDest );
+NS_COM void AppendASCIItoUTF16( const nsACString& aSource, nsAString& aDest );
+
+NS_COM void LossyAppendUTF16toASCII( const PRUnichar* aSource, nsACString& aDest );
+NS_COM void AppendASCIItoUTF16( const char* aSource, nsAString& aDest );
+
+NS_COM void AppendUTF16toUTF8( const nsAString& aSource, nsACString& aDest );
+NS_COM void AppendUTF8toUTF16( const nsACString& aSource, nsAString& aDest );
+
+NS_COM void AppendUTF16toUTF8( const PRUnichar* aSource, nsACString& aDest );
+NS_COM void AppendUTF8toUTF16( const char* aSource, nsAString& aDest );
+
+// Backward compatibility
+inline 
+NS_COM void CopyUCS2toASCII( const nsAString& aSource, nsACString& aDest )
+{ LossyCopyUTF16toASCII(aSource, aDest); }
+inline 
+NS_COM void CopyASCIItoUCS2( const nsACString& aSource, nsAString& aDest )
+{ CopyASCIItoUTF16(aSource, aDest); }
+
+  /**
+   * Returns a new |char| buffer containing a zero-terminated copy of |aSource|.
+   *
+   * Allocates and returns a new |char| buffer which you must free with |nsMemory::Free|.
+   * Performs a lossy encoding conversion by chopping 16-bit wide characters down to 8-bits wide while copying |aSource| to your new buffer.
+   * This conversion is not well defined; but it reproduces legacy string behavior.
+   * The new buffer is zero-terminated, but that may not help you if |aSource| contains embedded nulls.
+   *
+   * @param aSource a 16-bit wide string
+   * @return a new |char| buffer you must free with |nsMemory::Free|.
+   */
+NS_COM char* ToNewCString( const nsAString& aSource );
+
+
+  /**
+   * Returns a new |char| buffer containing a zero-terminated copy of |aSource|.
+   *
+   * Allocates and returns a new |char| buffer which you must free with |nsMemory::Free|.
+   * The new buffer is zero-terminated, but that may not help you if |aSource| contains embedded nulls.
+   *
+   * @param aSource an 8-bit wide string
+   * @return a new |char| buffer you must free with |nsMemory::Free|.
+   */
+NS_COM char* ToNewCString( const nsACString& aSource );
+
+  /**
+   * Returns a new |char| buffer containing a zero-terminated copy of |aSource|.
+   *
+   * Allocates and returns a new |char| buffer which you must free with 
+   * |nsMemory::Free|.
+   * Performs an encoding conversion from a UTF-16 string to a UTF-8 string
+   * copying |aSource| to your new buffer.
+   * The new buffer is zero-terminated, but that may not help you if |aSource| 
+   * contains embedded nulls.
+   *
+   * @param aSource a UTF-16 string (made of PRUnichar's)
+   * @param aUTF8Count the number of 8-bit units that was returned
+   * @return a new |char| buffer you must free with |nsMemory::Free|.
+   */
+
+NS_COM char* ToNewUTF8String( const nsAString& aSource, PRUint32 *aUTF8Count = nsnull );
+
+
+  /**
+   * Returns a new |PRUnichar| buffer containing a zero-terminated copy of 
+   * |aSource|.
+   *
+   * Allocates and returns a new |PRUnichar| buffer which you must free with 
+   * |nsMemory::Free|.
+   * The new buffer is zero-terminated, but that may not help you if |aSource| 
+   * contains embedded nulls.
+   *
+   * @param aSource a UTF-16 string
+   * @return a new |PRUnichar| buffer you must free with |nsMemory::Free|.
+   */
+NS_COM PRUnichar* ToNewUnicode( const nsAString& aSource );
+
+
+  /**
+   * Returns a new |PRUnichar| buffer containing a zero-terminated copy of |aSource|.
+   *
+   * Allocates and returns a new |PRUnichar| buffer which you must free with |nsMemory::Free|.
+   * Performs an encoding conversion by 0-padding 8-bit wide characters up to 16-bits wide while copying |aSource| to your new buffer.
+   * This conversion is not well defined; but it reproduces legacy string behavior.
+   * The new buffer is zero-terminated, but that may not help you if |aSource| contains embedded nulls.
+   *
+   * @param aSource an 8-bit wide string (a C-string, NOT UTF-8)
+   * @return a new |PRUnichar| buffer you must free with |nsMemory::Free|.
+   */
+NS_COM PRUnichar* ToNewUnicode( const nsACString& aSource );
+
+  /**
+   * Returns a new |PRUnichar| buffer containing a zero-terminated copy
+   * of |aSource|.
+   *
+   * Allocates and returns a new |char| buffer which you must free with
+   * |nsMemory::Free|.  Performs an encoding conversion from UTF-8 to UTF-16 
+   * while copying |aSource| to your new buffer.  This conversion is well defined
+   * for a valid UTF-8 string.  The new buffer is zero-terminated, but that 
+   * may not help you if |aSource| contains embedded nulls.
+   *
+   * @param aSource an 8-bit wide string, UTF-8 encoded
+   * @param aUTF16Count the number of 16-bit units that was returned
+   * @return a new |PRUnichar| buffer you must free with |nsMemory::Free|.
+   *         (UTF-16 encoded)
+   */
+NS_COM PRUnichar* UTF8ToNewUnicode( const nsACString& aSource, PRUint32 *aUTF16Count = nsnull );
+
+  /**
+   * Copies |aLength| 16-bit code units from the start of |aSource| to the
+   * |PRUnichar| buffer |aDest|.
+   *
+   * After this operation |aDest| is not null terminated.
+   *
+   * @param aSource a UTF-16 string
+   * @param aSrcOffset start offset in the source string
+   * @param aDest a |PRUnichar| buffer
+   * @param aLength the number of 16-bit code units to copy
+   * @return pointer to destination buffer - identical to |aDest|
+   */
+NS_COM PRUnichar* CopyUnicodeTo( const nsAString& aSource,
+                                 PRUint32 aSrcOffset,
+                                 PRUnichar* aDest,
+                                 PRUint32 aLength );
+
+
+  /**
+   * Copies 16-bit characters between iterators |aSrcStart| and
+   * |aSrcEnd| to the writable string |aDest|. Similar to the
+   * |nsString::Mid| method.
+   *
+   * After this operation |aDest| is not null terminated.
+   *
+   * @param aSrcStart start source iterator
+   * @param aSrcEnd end source iterator
+   * @param aDest destination for the copy
+   */
+NS_COM void CopyUnicodeTo( const nsAString::const_iterator& aSrcStart,
+                           const nsAString::const_iterator& aSrcEnd,
+                           nsAString& aDest );
+
+  /**
+   * Appends 16-bit characters between iterators |aSrcStart| and
+   * |aSrcEnd| to the writable string |aDest|. 
+   *
+   * After this operation |aDest| is not null terminated.
+   *
+   * @param aSrcStart start source iterator
+   * @param aSrcEnd end source iterator
+   * @param aDest destination for the copy
+   */
+NS_COM void AppendUnicodeTo( const nsAString::const_iterator& aSrcStart,
+                             const nsAString::const_iterator& aSrcEnd,
+                             nsAString& aDest );
+
+  /**
+   * Returns |PR_TRUE| if |aString| contains only ASCII characters, that is, characters in the range (0x00, 0x7F).
+   *
+   * @param aString a 16-bit wide string to scan
+   */
+NS_COM PRBool IsASCII( const nsAString& aString );
+
+  /**
+   * Returns |PR_TRUE| if |aString| contains only ASCII characters, that is, characters in the range (0x00, 0x7F).
+   *
+   * @param aString a 8-bit wide string to scan
+   */
+NS_COM PRBool IsASCII( const nsACString& aString );
+
+
+  /**
+   * Returns |PR_TRUE| if |aString| is a valid UTF-8 string.
+   * XXX This is not bullet-proof and nor an all-purpose UTF-8 validator. 
+   * It is mainly written to replace and roughly equivalent to
+   *
+   *    str.Equals(NS_ConvertUTF16toUTF8(NS_ConvertUTF8toUTF16(str)))
+   *
+   * (see bug 191541)
+   * As such,  it does not check for non-UTF-8 7bit encodings such as 
+   * ISO-2022-JP and HZ. However, it filters out  UTF-8 representation
+   * of surrogate codepoints and non-characters ( 0xFFFE and 0xFFFF
+   * in planes 0 through 16.) as well as overlong UTF-8 sequences. 
+   * Also note that it regards UTF-8 sequences corresponding to 
+   * codepoints above 0x10FFFF as invalid in accordance with 
+   * http://www.ietf.org/internet-drafts/draft-yergeau-rfc2279bis-04.txt
+   *
+   * @param aString an 8-bit wide string to scan
+   */
+NS_COM PRBool IsUTF8( const nsACString& aString );
+
+
+  /**
+   * Converts case in place in the argument string.
+   */
+NS_COM void ToUpperCase( nsACString& );
+
+NS_COM void ToLowerCase( nsACString& );
+
+NS_COM void ToUpperCase( nsCSubstring& );
+
+NS_COM void ToLowerCase( nsCSubstring& );
+
+  /**
+   * Converts case from string aSource to aDest.
+   */
+NS_COM void ToUpperCase( const nsACString& aSource, nsACString& aDest );
+
+NS_COM void ToLowerCase( const nsACString& aSource, nsACString& aDest );
+
+  /**
+   * Finds the leftmost occurance of |aPattern|, if any in the range |aSearchStart|..|aSearchEnd|.
+   *
+   * Returns |PR_TRUE| if a match was found, and adjusts |aSearchStart| and |aSearchEnd| to
+   * point to the match.  If no match was found, returns |PR_FALSE| and makes |aSearchStart == aSearchEnd|.
+   *
+   * Currently, this is equivalent to the O(m*n) implementation previously on |ns[C]String|.
+   * If we need something faster, then we can implement that later.
+   */
+
+NS_COM PRBool FindInReadable( const nsAString& aPattern, nsAString::const_iterator&, nsAString::const_iterator&, const nsStringComparator& = nsDefaultStringComparator() );
+NS_COM PRBool FindInReadable( const nsACString& aPattern, nsACString::const_iterator&, nsACString::const_iterator&, const nsCStringComparator& = nsDefaultCStringComparator() );
+
+/* sometimes we don't care about where the string was, just that we
+ * found it or not */
+inline PRBool FindInReadable( const nsAString& aPattern, const nsAString& aSource, const nsStringComparator& compare = nsDefaultStringComparator() )
+{
+  nsAString::const_iterator start, end;
+  aSource.BeginReading(start);
+  aSource.EndReading(end);
+  return FindInReadable(aPattern, start, end, compare);
+}
+
+inline PRBool FindInReadable( const nsACString& aPattern, const nsACString& aSource, const nsCStringComparator& compare = nsDefaultCStringComparator() )
+{
+  nsACString::const_iterator start, end;
+  aSource.BeginReading(start);
+  aSource.EndReading(end);
+  return FindInReadable(aPattern, start, end, compare);
+}
+
+
+NS_COM PRBool CaseInsensitiveFindInReadable( const nsACString& aPattern, nsACString::const_iterator&, nsACString::const_iterator& );
+
+  /**
+   * Finds the rightmost occurance of |aPattern| 
+   * Returns |PR_TRUE| if a match was found, and adjusts |aSearchStart| and |aSearchEnd| to
+   * point to the match.  If no match was found, returns |PR_FALSE| and makes |aSearchStart == aSearchEnd|.
+   *
+   * Currently, this is equivalent to the O(m*n) implementation previously on |ns[C]String|.
+   * If we need something faster, then we can implement that later.
+   */
+NS_COM PRBool RFindInReadable( const nsAString& aPattern, nsAString::const_iterator&, nsAString::const_iterator&, const nsStringComparator& = nsDefaultStringComparator() );
+NS_COM PRBool RFindInReadable( const nsACString& aPattern, nsACString::const_iterator&, nsACString::const_iterator&, const nsCStringComparator& = nsDefaultCStringComparator() );
+
+   /**
+   * Finds the leftmost occurance of |aChar|, if any in the range 
+   * |aSearchStart|..|aSearchEnd|.
+   *
+   * Returns |PR_TRUE| if a match was found, and adjusts |aSearchStart| to
+   * point to the match.  If no match was found, returns |PR_FALSE| and 
+   * makes |aSearchStart == aSearchEnd|.
+   */
+NS_COM PRBool FindCharInReadable( PRUnichar aChar, nsAString::const_iterator& aSearchStart, const nsAString::const_iterator& aSearchEnd );
+NS_COM PRBool FindCharInReadable( char aChar, nsACString::const_iterator& aSearchStart, const nsACString::const_iterator& aSearchEnd );
+
+    /**
+    * Finds the number of occurences of |aChar| in the string |aStr|
+    */
+NS_COM PRUint32 CountCharInReadable( const nsAString& aStr,
+                                     PRUnichar aChar );
+NS_COM PRUint32 CountCharInReadable( const nsACString& aStr,
+                                     char aChar );
+
+NS_COM PRBool
+StringBeginsWith( const nsAString& aSource, const nsAString& aSubstring,
+                  const nsStringComparator& aComparator =
+                                              nsDefaultStringComparator() );
+NS_COM PRBool
+StringBeginsWith( const nsACString& aSource, const nsACString& aSubstring,
+                  const nsCStringComparator& aComparator =
+                                               nsDefaultCStringComparator() );
+NS_COM PRBool
+StringEndsWith( const nsAString& aSource, const nsAString& aSubstring,
+                const nsStringComparator& aComparator =
+                                            nsDefaultStringComparator() );
+NS_COM PRBool
+StringEndsWith( const nsACString& aSource, const nsACString& aSubstring,
+                const nsCStringComparator& aComparator =
+                                             nsDefaultCStringComparator() );
+
+NS_COM PRUint32 HashString( const nsAString& aStr );
+NS_COM PRUint32 HashString( const nsACString& aStr );
+
+NS_COM const nsAFlatString& EmptyString();
+NS_COM const nsAFlatCString& EmptyCString();
+
+
+#endif // !defined(nsReadableUtils_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsString.h b/src/libs/xpcom18a4/xpcom/string/public/nsString.h
new file mode 100644
index 00000000..67376d19
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsString.h
@@ -0,0 +1,237 @@
+/* -*- 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 ***** */
+
+#ifndef nsString_h___
+#define nsString_h___
+
+
+#ifndef nsSubstring_h___
+#include "nsSubstring.h"
+#endif
+
+#ifndef nsDependentSubstring_h___
+#include "nsDependentSubstring.h"
+#endif
+
+#ifndef nsReadableUtils_h___
+#include "nsReadableUtils.h"
+#endif
+
+#include NEW_H
+
+  // enable support for the obsolete string API if not explicitly disabled
+#ifndef MOZ_STRING_WITH_OBSOLETE_API
+#define MOZ_STRING_WITH_OBSOLETE_API 1
+#endif
+
+#if MOZ_STRING_WITH_OBSOLETE_API
+  // radix values for ToInteger/AppendInt
+#define kRadix10        (10)
+#define kRadix16        (16)
+#define kAutoDetect     (100)
+#define kRadixUnknown   (kAutoDetect+1)
+#define IGNORE_CASE     (PR_TRUE)
+#endif
+
+
+  // declare nsString, et. al.
+#include "string-template-def-unichar.h"
+#include "nsTString.h"
+#include "string-template-undef.h"
+
+  // declare nsCString, et. al.
+#include "string-template-def-char.h"
+#include "nsTString.h"
+#include "string-template-undef.h"
+
+
+  /**
+   * A helper class that converts a UTF-16 string to ASCII in a lossy manner
+   */
+class NS_LossyConvertUTF16toASCII : public nsCAutoString
+  {
+    public:
+      explicit
+      NS_LossyConvertUTF16toASCII( const PRUnichar* aString )
+        {
+          LossyAppendUTF16toASCII(aString, *this);
+        }
+
+      NS_LossyConvertUTF16toASCII( const PRUnichar* aString, PRUint32 aLength )
+        {
+          LossyAppendUTF16toASCII(Substring(aString, aString + aLength), *this);
+        }
+
+      explicit
+      NS_LossyConvertUTF16toASCII( const nsAString& aString )
+        {
+          LossyAppendUTF16toASCII(aString, *this);
+        }
+
+    private:
+        // NOT TO BE IMPLEMENTED
+      NS_LossyConvertUTF16toASCII( char );
+  };
+
+
+class NS_ConvertASCIItoUTF16 : public nsAutoString
+  {
+    public:
+      explicit
+      NS_ConvertASCIItoUTF16( const char* aCString )
+        {
+          AppendASCIItoUTF16(aCString, *this);
+        }
+
+      NS_ConvertASCIItoUTF16( const char* aCString, PRUint32 aLength )
+        {
+          AppendASCIItoUTF16(Substring(aCString, aCString + aLength), *this);
+        }
+
+      explicit
+      NS_ConvertASCIItoUTF16( const nsACString& aCString )
+        {
+          AppendASCIItoUTF16(aCString, *this);
+        }
+
+    private:
+        // NOT TO BE IMPLEMENTED
+      NS_ConvertASCIItoUTF16( PRUnichar );
+  };
+
+
+  /**
+   * A helper class that converts a UTF-16 string to UTF-8
+   */
+class NS_ConvertUTF16toUTF8 : public nsCAutoString
+  {
+    public:
+      explicit
+      NS_ConvertUTF16toUTF8( const PRUnichar* aString )
+        {
+          AppendUTF16toUTF8(aString, *this);
+        }
+
+      NS_ConvertUTF16toUTF8( const PRUnichar* aString, PRUint32 aLength )
+        {
+          AppendUTF16toUTF8(Substring(aString, aString + aLength), *this);
+        }
+
+      explicit
+      NS_ConvertUTF16toUTF8( const nsAString& aString )
+        {
+          AppendUTF16toUTF8(aString, *this);
+        }
+
+    private:
+        // NOT TO BE IMPLEMENTED
+      NS_ConvertUTF16toUTF8( char );
+  };
+
+
+class NS_ConvertUTF8toUTF16 : public nsAutoString
+  {
+    public:
+      explicit
+      NS_ConvertUTF8toUTF16( const char* aCString )
+        {
+          AppendUTF8toUTF16(aCString, *this);
+        }
+
+      NS_ConvertUTF8toUTF16( const char* aCString, PRUint32 aLength )
+        {
+          AppendUTF8toUTF16(Substring(aCString, aCString + aLength), *this);
+        }
+
+      explicit
+      NS_ConvertUTF8toUTF16( const nsACString& aCString )
+        {
+          AppendUTF8toUTF16(aCString, *this);
+        }
+
+    private:
+        // NOT TO BE IMPLEMENTED
+      NS_ConvertUTF8toUTF16( PRUnichar );
+  };
+
+
+// the following are included/declared for backwards compatibility
+
+typedef NS_ConvertUTF16toUTF8 NS_ConvertUCS2toUTF8;
+typedef NS_LossyConvertUTF16toASCII NS_LossyConvertUCS2toASCII;
+typedef NS_ConvertASCIItoUTF16 NS_ConvertASCIItoUCS2;
+typedef NS_ConvertUTF8toUTF16 NS_ConvertUTF8toUCS2;
+typedef nsAutoString nsVoidableString;
+
+#ifndef nsDependentString_h___
+#include "nsDependentString.h"
+#endif
+
+#ifndef nsLiteralString_h___
+#include "nsLiteralString.h"
+#endif
+
+#ifndef nsPromiseFlatString_h___
+#include "nsPromiseFlatString.h"
+#endif
+
+// need to include these for backwards compatibility
+#include "nsMemory.h"
+#include <string.h>
+#include <stdio.h>
+#include "plhash.h"
+
+inline PRInt32 MinInt(PRInt32 x, PRInt32 y)
+  {
+    return NS_MIN(x, y);
+  }
+
+inline PRInt32 MaxInt(PRInt32 x, PRInt32 y)
+  {
+    return NS_MAX(x, y);
+  }
+
+/**
+ * Deprecated: don't use |Recycle|, just call |nsMemory::Free| directly
+ *
+ * Return the given buffer to the heap manager. Calls allocator::Free()
+ */
+inline void Recycle( char* aBuffer) { nsMemory::Free(aBuffer); }
+inline void Recycle( PRUnichar* aBuffer) { nsMemory::Free(aBuffer); }
+
+#endif // !defined(nsString_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsStringAPI.h b/src/libs/xpcom18a4/xpcom/string/public/nsStringAPI.h
new file mode 100644
index 00000000..cc0818b6
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsStringAPI.h
@@ -0,0 +1,853 @@
+/* vim:set ts=2 sw=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 ***** */
+
+#ifndef nsStringAPI_h__
+#define nsStringAPI_h__
+
+/**
+ * nsStringAPI.h
+ *
+ * This file describes a minimal API for working with XPCOM's abstract
+ * string classes.  It divorces the consumer from having any run-time
+ * dependency on the implementation details of the abstract string types.
+ */
+
+#include "nscore.h"
+
+#ifdef VBOX_WITH_XPCOM_NAMESPACE_CLEANUP
+#define NS_CStringContainerInit VBoxNsxpNS_CStringContainerInit
+#define NS_CStringContainerFinish VBoxNsxpNS_CStringContainerFinish
+#define NS_CStringCloneData VBoxNsxpNS_CStringCloneData
+#define NS_CStringCopy VBoxNsxpNS_CStringCopy
+#define NS_CStringGetData VBoxNsxpNS_CStringGetData
+#define NS_CStringSetData VBoxNsxpNS_CStringSetData
+#define NS_CStringSetDataRange VBoxNsxpNS_CStringSetDataRange
+#define NS_UTF16ToCString VBoxNsxpNS_UTF16ToCString
+#define NS_CStringToUTF16 VBoxNsxpNS_CStringToUTF16
+#define NS_StringContainerInit VBoxNsxpNS_StringContainerInit
+#define NS_StringContainerFinish VBoxNsxpNS_StringContainerFinish
+#define NS_StringCloneData VBoxNsxpNS_StringCloneData
+#define NS_StringCopy VBoxNsxpNS_StringCopy
+#define NS_StringGetData VBoxNsxpNS_StringGetData
+#define NS_StringSetData VBoxNsxpNS_StringSetData
+#define NS_StringSetDataRange VBoxNsxpNS_StringSetDataRange
+#endif /* VBOX_WITH_XPCOM_NAMESPACE_CLEANUP */
+
+#define NS_STRINGAPI(x) extern "C" NS_COM x
+
+/* The base string types */
+class nsAString;
+class nsACString;
+
+/* ------------------------------------------------------------------------- */
+
+/**
+ * nsStringContainer
+ *
+ * This is an opaque data type that is large enough to hold the canonical
+ * implementation of nsAString.  The binary structure of this class is an
+ * implementation detail.
+ *
+ * The string data stored in a string container is always single fragment
+ * and null-terminated.
+ *
+ * Typically, string containers are allocated on the stack for temporary
+ * use.  However, they can also be malloc'd if necessary.  In either case,
+ * a string container is not useful until it has been initialized with a
+ * call to NS_StringContainerInit.  The following example shows how to use
+ * a string container to call a function that takes a |nsAString &| out-param.
+ *
+ *   NS_METHOD GetBlah(nsAString &aBlah);
+ *
+ *   nsresult MyCode()
+ *   {
+ *     nsresult rv;
+ *
+ *     nsStringContainer sc;
+ *     rv = NS_StringContainerInit(sc);
+ *     if (NS_FAILED(rv))
+ *       return rv;
+ *
+ *     rv = GetBlah(sc);
+ *     if (NS_SUCCEEDED(rv))
+ *     {
+ *       const PRUnichar *data;
+ *       NS_StringGetData(sc, &data);
+ *       //
+ *       // |data| now points to the result of the GetBlah function
+ *       //
+ *     }
+ *
+ *     NS_StringContainerFinish(sc);
+ *     return rv;
+ *   }
+ *
+ * The following example show how to use a string container to pass a string
+ * parameter to a function taking a |const nsAString &| in-param.
+ *
+ *   NS_METHOD SetBlah(const nsAString &aBlah);
+ *
+ *   nsresult MyCode()
+ *   {
+ *     nsresult rv;
+ *
+ *     nsStringContainer sc;
+ *     rv = NS_StringContainerInit(sc);
+ *     if (NS_FAILED(rv))
+ *       return rv;
+ *
+ *     const PRUnichar kData[] = {'x','y','z','\0'};
+ *     rv = NS_StringSetData(sc, kData, sizeof(kData)/2 - 1);
+ *     if (NS_SUCCEEDED(rv))
+ *       rv = SetBlah(sc);
+ *
+ *     NS_StringContainerFinish(sc);
+ *     return rv;
+ *   }
+ */
+class nsStringContainer;
+
+/**
+ * NS_StringContainerInit
+ *
+ * @param aContainer    string container reference
+ * @return              NS_OK if string container successfully initialized
+ *
+ * This function may allocate additional memory for aContainer.  When
+ * aContainer is no longer needed, NS_StringContainerFinish should be called.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_StringContainerInit(nsStringContainer &aContainer);
+
+/**
+ * NS_StringContainerFinish
+ *
+ * @param aContainer    string container reference
+ *
+ * This function frees any memory owned by aContainer.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(void)
+NS_StringContainerFinish(nsStringContainer &aContainer);
+
+/* ------------------------------------------------------------------------- */
+
+/**
+ * NS_StringGetData
+ *
+ * This function returns a const character pointer to the string's internal
+ * buffer, the length of the string, and a boolean value indicating whether
+ * or not the buffer is null-terminated.
+ *
+ * @param aStr          abstract string reference
+ * @param aData         out param that will hold the address of aStr's
+ *                      internal buffer
+ * @param aTerminated   if non-null, this out param will be set to indicate
+ *                      whether or not aStr's internal buffer is null-
+ *                      terminated
+ * @return              length of aStr's internal buffer
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(PRUint32)
+NS_StringGetData
+  (const nsAString &aStr, const PRUnichar **aData,
+   PRBool *aTerminated = nsnull);
+
+/**
+ * NS_StringCloneData
+ *
+ * This function returns a null-terminated copy of the string's
+ * internal buffer.
+ *
+ * @param aStr          abstract string reference
+ * @return              null-terminated copy of the string's internal buffer
+ *                      (it must be free'd using using nsMemory::Free)
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(PRUnichar *)
+NS_StringCloneData
+  (const nsAString &aStr);
+
+/**
+ * NS_StringSetData
+ *
+ * This function copies aData into aStr.
+ *
+ * @param aStr          abstract string reference
+ * @param aData         character buffer
+ * @param aDataLength   number of characters to copy from source string (pass
+ *                      PR_UINT32_MAX to copy until end of aData, designated by
+ *                      a null character)
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aStr after copying data
+ * from aData.  The behavior depends on the implementation of the abstract
+ * string, aStr.  If aStr is a reference to a nsStringContainer, then its data
+ * will be null-terminated by this function.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_StringSetData
+  (nsAString &aStr, const PRUnichar *aData,
+   PRUint32 aDataLength = PR_UINT32_MAX);
+
+/**
+ * NS_StringSetDataRange
+ *
+ * This function copies aData into a section of aStr.  As a result it can be
+ * used to insert new characters into the string.
+ *
+ * @param aStr          abstract string reference
+ * @param aCutOffset    starting index where the string's existing data
+ *                      is to be overwritten (pass PR_UINT32_MAX to cause
+ *                      aData to be appended to the end of aStr, in which
+ *                      case the value of aCutLength is ignored).
+ * @param aCutLength    number of characters to overwrite starting at
+ *                      aCutOffset (pass PR_UINT32_MAX to overwrite until the
+ *                      end of aStr).
+ * @param aData         character buffer (pass null to cause this function
+ *                      to simply remove the "cut" range)
+ * @param aDataLength   number of characters to copy from source string (pass
+ *                      PR_UINT32_MAX to copy until end of aData, designated by
+ *                      a null character)
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aStr after copying data
+ * from aData.  The behavior depends on the implementation of the abstract
+ * string, aStr.  If aStr is a reference to a nsStringContainer, then its data
+ * will be null-terminated by this function.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_StringSetDataRange
+  (nsAString &aStr, PRUint32 aCutOffset, PRUint32 aCutLength,
+   const PRUnichar *aData, PRUint32 aDataLength = PR_UINT32_MAX);
+
+/**
+ * NS_StringCopy
+ *
+ * This function makes aDestStr have the same value as aSrcStr.  It is
+ * provided as an optimization.
+ *
+ * @param aDestStr      abstract string reference to be modified
+ * @param aSrcStr       abstract string reference containing source string
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aDestStr after copying
+ * data from aSrcStr.  The behavior depends on the implementation of the
+ * abstract string, aDestStr.  If aDestStr is a reference to a
+ * nsStringContainer, then its data will be null-terminated by this function.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_StringCopy
+  (nsAString &aDestStr, const nsAString &aSrcStr);
+
+/**
+ * NS_StringAppendData
+ *
+ * This function appends data to the existing value of aStr.
+ *
+ * @param aStr          abstract string reference to be modified
+ * @param aData         character buffer
+ * @param aDataLength   number of characters to append (pass PR_UINT32_MAX to
+ *                      append until a null-character is encountered)
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aStr upon completion.
+ * The behavior depends on the implementation of the abstract string, aStr.
+ * If aStr is a reference to a nsStringContainer, then its data will be null-
+ * terminated by this function.
+ */
+inline NS_HIDDEN_(nsresult)
+NS_StringAppendData(nsAString &aStr, const PRUnichar *aData,
+                    PRUint32 aDataLength = PR_UINT32_MAX)
+{
+  return NS_StringSetDataRange(aStr, PR_UINT32_MAX, 0, aData, aDataLength);
+}
+
+/**
+ * NS_StringInsertData
+ *
+ * This function inserts data into the existing value of aStr at the specified
+ * offset.
+ *
+ * @param aStr          abstract string reference to be modified
+ * @param aOffset       specifies where in the string to insert aData
+ * @param aData         character buffer
+ * @param aDataLength   number of characters to append (pass PR_UINT32_MAX to
+ *                      append until a null-character is encountered)
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aStr upon completion.
+ * The behavior depends on the implementation of the abstract string, aStr.
+ * If aStr is a reference to a nsStringContainer, then its data will be null-
+ * terminated by this function.
+ */
+inline NS_HIDDEN_(nsresult)
+NS_StringInsertData(nsAString &aStr, PRUint32 aOffset, const PRUnichar *aData,
+                    PRUint32 aDataLength = PR_UINT32_MAX)
+{
+  return NS_StringSetDataRange(aStr, aOffset, 0, aData, aDataLength);
+}
+
+/**
+ * NS_StringCutData
+ *
+ * This function shortens the existing value of aStr, by removing characters
+ * at the specified offset.
+ *
+ * @param aStr          abstract string reference to be modified
+ * @param aCutOffset    specifies where in the string to insert aData
+ * @param aCutLength    number of characters to remove
+ * @return              NS_OK if function succeeded
+ */
+inline NS_HIDDEN_(nsresult)
+NS_StringCutData(nsAString &aStr, PRUint32 aCutOffset, PRUint32 aCutLength)
+{
+  return NS_StringSetDataRange(aStr, aCutOffset, aCutLength, nsnull, 0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/**
+ * nsCStringContainer
+ *
+ * This is an opaque data type that is large enough to hold the canonical
+ * implementation of nsACString.  The binary structure of this class is an
+ * implementation detail.
+ *
+ * The string data stored in a string container is always single fragment
+ * and null-terminated.
+ *
+ * @see nsStringContainer for use cases and further documentation.
+ */
+class nsCStringContainer;
+
+/**
+ * NS_CStringContainerInit
+ *
+ * @param aContainer    string container reference
+ * @return              NS_OK if string container successfully initialized
+ *
+ * This function may allocate additional memory for aContainer.  When
+ * aContainer is no longer needed, NS_CStringContainerFinish should be called.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_CStringContainerInit(nsCStringContainer &aContainer);
+
+/**
+ * NS_CStringContainerFinish
+ *
+ * @param aContainer    string container reference
+ *
+ * This function frees any memory owned by aContainer.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(void)
+NS_CStringContainerFinish(nsCStringContainer &aContainer);
+
+/* ------------------------------------------------------------------------- */
+
+/**
+ * NS_CStringGetData
+ *
+ * This function returns a const character pointer to the string's internal
+ * buffer, the length of the string, and a boolean value indicating whether
+ * or not the buffer is null-terminated.
+ *
+ * @param aStr          abstract string reference
+ * @param aData         out param that will hold the address of aStr's
+ *                      internal buffer
+ * @param aTerminated   if non-null, this out param will be set to indicate
+ *                      whether or not aStr's internal buffer is null-
+ *                      terminated
+ * @return              length of aStr's internal buffer
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(PRUint32)
+NS_CStringGetData
+  (const nsACString &aStr, const char **aData,
+   PRBool *aTerminated = nsnull);
+
+/**
+ * NS_CStringCloneData
+ *
+ * This function returns a null-terminated copy of the string's
+ * internal buffer.
+ *
+ * @param aStr          abstract string reference
+ * @return              null-terminated copy of the string's internal buffer
+ *                      (it must be free'd using using nsMemory::Free)
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(char *)
+NS_CStringCloneData
+  (const nsACString &aStr);
+
+/**
+ * NS_CStringSetData
+ *
+ * This function copies aData into aStr.
+ *
+ * @param aStr          abstract string reference
+ * @param aData         character buffer
+ * @param aDataLength   number of characters to copy from source string (pass
+ *                      PR_UINT32_MAX to copy until end of aData, designated by
+ *                      a null character)
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aStr after copying data
+ * from aData.  The behavior depends on the implementation of the abstract
+ * string, aStr.  If aStr is a reference to a nsStringContainer, then its data
+ * will be null-terminated by this function.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_CStringSetData
+  (nsACString &aStr, const char *aData,
+   PRUint32 aDataLength = PR_UINT32_MAX);
+
+/**
+ * NS_CStringSetDataRange
+ *
+ * This function copies aData into a section of aStr.  As a result it can be
+ * used to insert new characters into the string.
+ *
+ * @param aStr          abstract string reference
+ * @param aCutOffset    starting index where the string's existing data
+ *                      is to be overwritten (pass PR_UINT32_MAX to cause
+ *                      aData to be appended to the end of aStr, in which
+ *                      case the value of aCutLength is ignored).
+ * @param aCutLength    number of characters to overwrite starting at
+ *                      aCutOffset (pass PR_UINT32_MAX to overwrite until the
+ *                      end of aStr).
+ * @param aData         character buffer (pass null to cause this function
+ *                      to simply remove the "cut" range)
+ * @param aDataLength   number of characters to copy from source string (pass
+ *                      PR_UINT32_MAX to copy until end of aData, designated by
+ *                      a null character)
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aStr after copying data
+ * from aData.  The behavior depends on the implementation of the abstract
+ * string, aStr.  If aStr is a reference to a nsStringContainer, then its data
+ * will be null-terminated by this function.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_CStringSetDataRange
+  (nsACString &aStr, PRUint32 aCutOffset, PRUint32 aCutLength,
+   const char *aData, PRUint32 aDataLength = PR_UINT32_MAX);
+
+/**
+ * NS_CStringCopy
+ *
+ * This function makes aDestStr have the same value as aSrcStr.  It is
+ * provided as an optimization.
+ *
+ * @param aDestStr      abstract string reference to be modified
+ * @param aSrcStr       abstract string reference containing source string
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aDestStr after copying
+ * data from aSrcStr.  The behavior depends on the implementation of the
+ * abstract string, aDestStr.  If aDestStr is a reference to a
+ * nsStringContainer, then its data will be null-terminated by this function.
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_CStringCopy
+  (nsACString &aDestStr, const nsACString &aSrcStr);
+
+/**
+ * NS_CStringAppendData
+ *
+ * This function appends data to the existing value of aStr.
+ *
+ * @param aStr          abstract string reference to be modified
+ * @param aData         character buffer
+ * @param aDataLength   number of characters to append (pass PR_UINT32_MAX to
+ *                      append until a null-character is encountered)
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aStr upon completion.
+ * The behavior depends on the implementation of the abstract string, aStr.
+ * If aStr is a reference to a nsStringContainer, then its data will be null-
+ * terminated by this function.
+ */
+inline NS_HIDDEN_(nsresult)
+NS_CStringAppendData(nsACString &aStr, const char *aData,
+                    PRUint32 aDataLength = PR_UINT32_MAX)
+{
+  return NS_CStringSetDataRange(aStr, PR_UINT32_MAX, 0, aData, aDataLength);
+}
+
+/**
+ * NS_CStringInsertData
+ *
+ * This function inserts data into the existing value of aStr at the specified
+ * offset.
+ *
+ * @param aStr          abstract string reference to be modified
+ * @param aOffset       specifies where in the string to insert aData
+ * @param aData         character buffer
+ * @param aDataLength   number of characters to append (pass PR_UINT32_MAX to
+ *                      append until a null-character is encountered)
+ * @return              NS_OK if function succeeded
+ *
+ * This function does not necessarily null-terminate aStr upon completion.
+ * The behavior depends on the implementation of the abstract string, aStr.
+ * If aStr is a reference to a nsStringContainer, then its data will be null-
+ * terminated by this function.
+ */
+inline NS_HIDDEN_(nsresult)
+NS_CStringInsertData(nsACString &aStr, PRUint32 aOffset, const char *aData,
+                    PRUint32 aDataLength = PR_UINT32_MAX)
+{
+  return NS_CStringSetDataRange(aStr, aOffset, 0, aData, aDataLength);
+}
+
+/**
+ * NS_CStringCutData
+ *
+ * This function shortens the existing value of aStr, by removing characters
+ * at the specified offset.
+ *
+ * @param aStr          abstract string reference to be modified
+ * @param aCutOffset    specifies where in the string to insert aData
+ * @param aCutLength    number of characters to remove
+ * @return              NS_OK if function succeeded
+ */
+inline NS_HIDDEN_(nsresult)
+NS_CStringCutData(nsACString &aStr, PRUint32 aCutOffset, PRUint32 aCutLength)
+{
+  return NS_CStringSetDataRange(aStr, aCutOffset, aCutLength, nsnull, 0);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/**
+ * Encodings that can be used with the following conversion routines.
+ */
+enum nsCStringEncoding {
+  /* Conversion between ASCII and UTF-16 assumes that all bytes in the source
+   * string are 7-bit ASCII and can be inflated to UTF-16 by inserting null
+   * bytes.  Reverse conversion is done by truncating every other byte.  The
+   * conversion may result in loss and/or corruption of information if the
+   * strings do not strictly contain ASCII data. */
+  NS_CSTRING_ENCODING_ASCII = 0,
+
+  /* Conversion between UTF-8 and UTF-16 is non-lossy. */
+  NS_CSTRING_ENCODING_UTF8 = 1,
+
+  /* Conversion from UTF-16 to the native filesystem charset may result in a
+   * loss of information.  No attempt is made to protect against data loss in
+   * this case.  The native filesystem charset applies to strings passed to
+   * the "Native" method variants on nsIFile and nsILocalFile. */
+  NS_CSTRING_ENCODING_NATIVE_FILESYSTEM = 2
+};
+
+/**
+ * NS_CStringToUTF16
+ *
+ * This function converts the characters in a nsACString to an array of UTF-16
+ * characters, in the platform endianness.  The result is stored in a nsAString
+ * object.
+ *
+ * @param aSource       abstract string reference containing source string
+ * @param aSrcEncoding  character encoding of the source string
+ * @param aDest         abstract string reference to hold the result
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_CStringToUTF16(const nsACString &aSource, nsCStringEncoding aSrcEncoding,
+                  nsAString &aDest);
+
+/**
+ * NS_UTF16ToCString
+ *
+ * This function converts the UTF-16 characters in a nsAString to a single-byte
+ * encoding.  The result is stored in a nsACString object.  In some cases this
+ * conversion may be lossy.  In such cases, the conversion may succeed with a
+ * return code indicating loss of information.  The exact behavior is not
+ * specified at this time.
+ *
+ * @param aSource       abstract string reference containing source string
+ * @param aDestEncoding character encoding of the resulting string
+ * @param aDest         abstract string reference to hold the result
+ *
+ * @status FROZEN
+ */
+NS_STRINGAPI(nsresult)
+NS_UTF16ToCString(const nsAString &aSource, nsCStringEncoding aDestEncoding,
+                  nsACString &aDest);
+
+/* ------------------------------------------------------------------------- */
+
+/**
+ * Below we define nsAString and nsACString.  The "_external" suffix is an
+ * implementation detail.  nsAString_external is the name of the external
+ * representation of nsAString from the point of view of the Mozilla codebase.
+ * To a user of this API, nsAString_external is exactly nsAString.
+ *
+ * These classes should be treated as abstract classes with unspecified
+ * structure.  The inline methods are provided as helper functions around the
+ * C-style API provided above.
+ *
+ * Do not try to mix these definitions of nsAString and nsACString with the
+ * internal definition of these classes from nsAString.h in the Mozilla tree.
+ */
+
+#ifndef NS_STRINGAPI_IMPL
+#define nsAString_external nsAString
+#define nsACString_external nsACString
+#endif
+
+class nsAString_external
+{
+#ifndef NS_STRINGAPI_IMPL
+
+public:
+  typedef PRUnichar             char_type;
+  typedef nsAString_external    self_type;
+  typedef PRUint32              size_type;
+  typedef PRUint32              index_type;
+
+  NS_HIDDEN_(const char_type*) BeginReading() const
+  {
+    const char_type *data;
+    NS_StringGetData(*this, &data);
+    return data;
+  }
+
+  NS_HIDDEN_(const char_type*) EndReading() const
+  {
+    const char_type *data;
+    PRUint32 len = NS_StringGetData(*this, &data);
+    return data + len;
+  }
+
+  NS_HIDDEN_(size_type) Length() const
+  {
+    const char_type* data;
+    return NS_StringGetData(*this, &data);
+  }
+
+  NS_HIDDEN_(void) Assign(const self_type& aString)
+  {
+    NS_StringCopy(*this, aString);
+  }
+  NS_HIDDEN_(void) Assign(const char_type* aData, size_type aLength = PR_UINT32_MAX)
+  {
+    NS_StringSetData(*this, aData, aLength);
+  }
+  NS_HIDDEN_(void) Assign(char_type aChar)
+  {
+    NS_StringSetData(*this, &aChar, 1);
+  }
+
+  NS_HIDDEN_(self_type&) operator=(const self_type& aString) { Assign(aString);   return *this; }
+  NS_HIDDEN_(self_type&) operator=(const char_type* aPtr)    { Assign(aPtr);      return *this; }
+  NS_HIDDEN_(self_type&) operator=(char_type aChar)          { Assign(aChar);     return *this; }
+
+  NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, const char_type* data, size_type length = size_type(-1) )
+  {
+    NS_StringSetDataRange(*this, cutStart, cutLength, data, length);
+  }
+  NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, char_type c )
+  {
+    Replace(cutStart, cutLength, &c, 1);
+  }
+  NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, const self_type& readable )
+  {
+    const char_type* data;
+    PRUint32 dataLen = NS_StringGetData(readable, &data);
+    NS_StringSetDataRange(*this, cutStart, cutLength, data, dataLen);
+  }
+
+  NS_HIDDEN_(void) Append( char_type c )                                                              { Replace(size_type(-1), 0, c); }
+  NS_HIDDEN_(void) Append( const char_type* data, size_type length = size_type(-1) )                  { Replace(size_type(-1), 0, data, length); }
+  NS_HIDDEN_(void) Append( const self_type& readable )                                                { Replace(size_type(-1), 0, readable); }
+
+  NS_HIDDEN_(self_type&) operator+=( char_type c )                                                    { Append(c);        return *this; }
+  NS_HIDDEN_(self_type&) operator+=( const char_type* data )                                          { Append(data);     return *this; }
+  NS_HIDDEN_(self_type&) operator+=( const self_type& readable )                                      { Append(readable); return *this; }
+
+  NS_HIDDEN_(void) Insert( char_type c, index_type pos )                                              { Replace(pos, 0, c); }
+  NS_HIDDEN_(void) Insert( const char_type* data, index_type pos, size_type length = size_type(-1) )  { Replace(pos, 0, data, length); }
+  NS_HIDDEN_(void) Insert( const self_type& readable, index_type pos )                                { Replace(pos, 0, readable); }
+
+  NS_HIDDEN_(void) Cut( index_type cutStart, size_type cutLength )                                    { Replace(cutStart, cutLength, nsnull, 0); }
+
+#endif // NS_STRINGAPI_IMPL
+
+private:
+  void *v;
+};
+
+class nsACString_external
+{
+#ifndef NS_STRINGAPI_IMPL
+
+public:
+  typedef char                  char_type;
+  typedef nsACString_external   self_type;
+  typedef PRUint32              size_type;
+  typedef PRUint32              index_type;
+
+  NS_HIDDEN_(const char_type*) BeginReading() const
+  {
+    const char_type *data;
+    NS_CStringGetData(*this, &data);
+    return data;
+  }
+
+  NS_HIDDEN_(const char_type*) EndReading() const
+  {
+    const char_type *data;
+    PRUint32 len = NS_CStringGetData(*this, &data);
+    return data + len;
+  }
+
+  NS_HIDDEN_(size_type) Length() const
+  {
+    const char_type* data;
+    return NS_CStringGetData(*this, &data);
+  }
+
+  NS_HIDDEN_(void) Assign(const self_type& aString)
+  {
+    NS_CStringCopy(*this, aString);
+  }
+  NS_HIDDEN_(void) Assign(const char_type* aData, size_type aLength = PR_UINT32_MAX)
+  {
+    NS_CStringSetData(*this, aData, aLength);
+  }
+  NS_HIDDEN_(void) Assign(char_type aChar)
+  {
+    NS_CStringSetData(*this, &aChar, 1);
+  }
+
+  NS_HIDDEN_(self_type&) operator=(const self_type& aString) { Assign(aString);   return *this; }
+  NS_HIDDEN_(self_type&) operator=(const char_type* aPtr)    { Assign(aPtr);      return *this; }
+  NS_HIDDEN_(self_type&) operator=(char_type aChar)          { Assign(aChar);     return *this; }
+
+  NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, const char_type* data, size_type length = size_type(-1) )
+  {
+    NS_CStringSetDataRange(*this, cutStart, cutLength, data, length);
+  }
+  NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, char_type c )
+  {
+    Replace(cutStart, cutLength, &c, 1);
+  }
+  NS_HIDDEN_(void) Replace( index_type cutStart, size_type cutLength, const self_type& readable )
+  {
+    const char_type* data;
+    PRUint32 dataLen = NS_CStringGetData(readable, &data);
+    NS_CStringSetDataRange(*this, cutStart, cutLength, data, dataLen);
+  }
+
+  NS_HIDDEN_(void) Append( char_type c )                                                              { Replace(size_type(-1), 0, c); }
+  NS_HIDDEN_(void) Append( const char_type* data, size_type length = size_type(-1) )                  { Replace(size_type(-1), 0, data, length); }
+  NS_HIDDEN_(void) Append( const self_type& readable )                                                { Replace(size_type(-1), 0, readable); }
+
+  NS_HIDDEN_(self_type&) operator+=( char_type c )                                                    { Append(c);        return *this; }
+  NS_HIDDEN_(self_type&) operator+=( const char_type* data )                                          { Append(data);     return *this; }
+  NS_HIDDEN_(self_type&) operator+=( const self_type& readable )                                      { Append(readable); return *this; }
+
+  NS_HIDDEN_(void) Insert( char_type c, index_type pos )                                              { Replace(pos, 0, c); }
+  NS_HIDDEN_(void) Insert( const char_type* data, index_type pos, size_type length = size_type(-1) )  { Replace(pos, 0, data, length); }
+  NS_HIDDEN_(void) Insert( const self_type& readable, index_type pos )                                { Replace(pos, 0, readable); }
+
+  NS_HIDDEN_(void) Cut( index_type cutStart, size_type cutLength )                                    { Replace(cutStart, cutLength, nsnull, 0); }
+
+#endif // NS_STRINGAPI_IMPL
+
+private:
+  void *v;
+};
+
+/* ------------------------------------------------------------------------- */
+
+/**
+ * Below we define nsStringContainer and nsCStringContainer.  These classes
+ * have unspecified structure.  In most cases, your code should use
+ * nsEmbedString instead of these classes; however, if you prefer C-style
+ * programming, then look no further...
+ */
+
+class nsStringContainer : public nsAString_external
+{
+private:
+  void     *d1;
+  PRUint32  d2;
+  void     *d3;
+
+public:
+  nsStringContainer() {} // MSVC6 needs this
+};
+
+class nsCStringContainer : public nsACString_external
+{
+private:
+  void    *d1;
+  PRUint32 d2;
+  void    *d3;
+
+public:
+  nsCStringContainer() {} // MSVC6 needs this
+};
+
+#endif // nsStringAPI_h__
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsStringFwd.h b/src/libs/xpcom18a4/xpcom/string/public/nsStringFwd.h
new file mode 100644
index 00000000..4c664011
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsStringFwd.h
@@ -0,0 +1,96 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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
+ * Netscape Communications.
+ * Portions created by the Initial Developer are Copyright (C) 2001
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of 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 ***** */
+
+/* nsStringFwd.h --- forward declarations for string classes */
+
+#ifndef nsStringFwd_h___
+#define nsStringFwd_h___
+
+#ifndef nscore_h___
+#include "nscore.h"
+#endif
+
+
+  /**
+   * double-byte (PRUnichar) string types
+   */
+
+class nsAString;
+class nsObsoleteAString;
+class nsSubstring;
+class nsSubstringTuple;
+class nsString;
+class nsAutoString;
+class nsDependentString;
+class nsDependentSubstring;
+class nsPromiseFlatString;
+class nsStringComparator;
+class nsDefaultStringComparator;
+class nsXPIDLString;
+
+
+  /**
+   * single-byte (char) string types
+   */
+
+class nsACString;
+class nsObsoleteACString;
+class nsCSubstring;
+class nsCSubstringTuple;
+class nsCString;
+class nsCAutoString;
+class nsDependentCString;
+class nsDependentCSubstring;
+class nsPromiseFlatCString;
+class nsCStringComparator;
+class nsDefaultCStringComparator;
+class nsXPIDLCString;
+
+
+  /**
+   * typedefs for backwards compatibility
+   */
+
+typedef nsString              nsAFlatString;
+typedef nsSubstring           nsASingleFragmentString;
+
+typedef nsCString             nsAFlatCString;
+typedef nsCSubstring          nsASingleFragmentCString;
+
+  
+#endif /* !defined(nsStringFwd_h___) */
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsStringIterator.h b/src/libs/xpcom18a4/xpcom/string/public/nsStringIterator.h
new file mode 100644
index 00000000..1848594c
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsStringIterator.h
@@ -0,0 +1,373 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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
+ * Netscape Communications.
+ * Portions created by the Initial Developer are Copyright (C) 2001
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of 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 ***** */
+
+#ifndef nsStringIterator_h___
+#define nsStringIterator_h___
+
+#ifndef nsCharTraits_h___
+#include "nsCharTraits.h"
+#endif
+
+#ifndef nsAlgorithm_h___
+#include "nsAlgorithm.h"
+#endif
+
+#ifndef nsDebug_h___
+#include "nsDebug.h"
+#endif
+
+  /**
+   * @see nsTAString
+   */
+
+template <class CharT>
+class nsReadingIterator
+  {
+    public:
+      typedef nsReadingIterator<CharT>    self_type;
+      typedef ptrdiff_t                   difference_type;
+      typedef CharT                       value_type;
+      typedef const CharT*                pointer;
+      typedef const CharT&                reference;
+
+    private:
+      friend class nsAString;
+      friend class nsACString;
+      friend class nsSubstring;
+      friend class nsCSubstring;
+
+        // unfortunately, the API for nsReadingIterator requires that the
+        // iterator know its start and end positions.  this was needed when
+        // we supported multi-fragment strings, but now it is really just
+        // extra baggage.  we should remove mStart and mEnd at some point.
+
+      const CharT* mStart;
+      const CharT* mEnd;
+      const CharT* mPosition;
+
+    public:
+      nsReadingIterator() { }
+      // nsReadingIterator( const nsReadingIterator<CharT>& );                    // auto-generated copy-constructor OK
+      // nsReadingIterator<CharT>& operator=( const nsReadingIterator<CharT>& );  // auto-generated copy-assignment operator OK
+
+      inline void normalize_forward() {}
+      inline void normalize_backward() {}
+
+      pointer
+      start() const
+        {
+          return mStart;
+        }
+
+      pointer
+      end() const
+        {
+          return mEnd;
+        }
+
+      pointer
+      get() const
+        {
+          return mPosition;
+        }
+      
+      CharT
+      operator*() const
+        {
+          return *get();
+        }
+
+#if 0
+        // An iterator really deserves this, but some compilers (notably IBM VisualAge for OS/2)
+        //  don't like this when |CharT| is a type without members.
+      pointer
+      operator->() const
+        {
+          return get();
+        }
+#endif
+
+      self_type&
+      operator++()
+        {
+          ++mPosition;
+          return *this;
+        }
+
+      self_type
+      operator++( int )
+        {
+          self_type result(*this);
+          ++mPosition;
+          return result;
+        }
+
+      self_type&
+      operator--()
+        {
+          --mPosition;
+          return *this;
+        }
+
+      self_type
+      operator--( int )
+        {
+          self_type result(*this);
+          --mPosition;
+          return result;
+        }
+
+      difference_type
+      size_forward() const
+        {
+          return mEnd - mPosition;
+        }
+
+      difference_type
+      size_backward() const
+        {
+          return mPosition - mStart;
+        }
+
+      self_type&
+      advance( difference_type n )
+        {
+          if (n > 0)
+            {
+              difference_type step = NS_MIN(n, size_forward());
+
+              NS_ASSERTION(step>0, "can't advance a reading iterator beyond the end of a string");
+
+              mPosition += step;
+            }
+          else if (n < 0)
+            {
+              difference_type step = NS_MAX(n, -size_backward());
+
+              NS_ASSERTION(step<0, "can't advance (backward) a reading iterator beyond the end of a string");
+
+              mPosition += step;
+            }
+          return *this;
+        }
+  };
+
+  /**
+   * @see nsTAString
+   */
+
+template <class CharT>
+class nsWritingIterator
+  {
+    public:
+      typedef nsWritingIterator<CharT>   self_type;
+      typedef ptrdiff_t                  difference_type;
+      typedef CharT                      value_type;
+      typedef CharT*                     pointer;
+      typedef CharT&                     reference;
+
+    private:
+      friend class nsAString;
+      friend class nsACString;
+      friend class nsSubstring;
+      friend class nsCSubstring;
+
+        // unfortunately, the API for nsWritingIterator requires that the
+        // iterator know its start and end positions.  this was needed when
+        // we supported multi-fragment strings, but now it is really just
+        // extra baggage.  we should remove mStart and mEnd at some point.
+
+      CharT* mStart;
+      CharT* mEnd;
+      CharT* mPosition;
+
+    public:
+      nsWritingIterator() { }
+      // nsWritingIterator( const nsWritingIterator<CharT>& );                    // auto-generated copy-constructor OK
+      // nsWritingIterator<CharT>& operator=( const nsWritingIterator<CharT>& );  // auto-generated copy-assignment operator OK
+
+      inline void normalize_forward() {}
+      inline void normalize_backward() {}
+
+      pointer
+      start() const
+        {
+          return mStart;
+        }
+
+      pointer
+      end() const
+        {
+          return mEnd;
+        }
+
+      pointer
+      get() const
+        {
+          return mPosition;
+        }
+      
+      reference
+      operator*() const
+        {
+          return *get();
+        }
+
+#if 0
+        // An iterator really deserves this, but some compilers (notably IBM VisualAge for OS/2)
+        //  don't like this when |CharT| is a type without members.
+      pointer
+      operator->() const
+        {
+          return get();
+        }
+#endif
+
+      self_type&
+      operator++()
+        {
+          ++mPosition;
+          return *this;
+        }
+
+      self_type
+      operator++( int )
+        {
+          self_type result(*this);
+          ++mPosition;
+          return result;
+        }
+
+      self_type&
+      operator--()
+        {
+          --mPosition;
+          return *this;
+        }
+
+      self_type
+      operator--( int )
+        {
+          self_type result(*this);
+          --mPosition;
+          return result;
+        }
+
+      difference_type
+      size_forward() const
+        {
+          return mEnd - mPosition;
+        }
+
+      difference_type
+      size_backward() const
+        {
+          return mPosition - mStart;
+        }
+
+      self_type&
+      advance( difference_type n )
+        {
+          if (n > 0)
+            {
+              difference_type step = NS_MIN(n, size_forward());
+
+              NS_ASSERTION(step>0, "can't advance a writing iterator beyond the end of a string");
+
+              mPosition += step;
+            }
+          else if (n < 0)
+            {
+              difference_type step = NS_MAX(n, -size_backward());
+
+              NS_ASSERTION(step<0, "can't advance (backward) a writing iterator beyond the end of a string");
+
+              mPosition += step;
+            }
+          return *this;
+        }
+
+      PRUint32
+      write( const value_type* s, PRUint32 n )
+        {
+          NS_ASSERTION(size_forward() > 0, "You can't |write| into an |nsWritingIterator| with no space!");
+
+          nsCharTraits<value_type>::move(mPosition, s, n);
+          advance( difference_type(n) );
+          return n;
+        }
+  };
+
+template <class CharT>
+inline
+PRBool
+operator==( const nsReadingIterator<CharT>& lhs, const nsReadingIterator<CharT>& rhs )
+  {
+    return lhs.get() == rhs.get();
+  }
+
+template <class CharT>
+inline
+PRBool
+operator!=( const nsReadingIterator<CharT>& lhs, const nsReadingIterator<CharT>& rhs )
+  {
+    return lhs.get() != rhs.get();
+  }
+
+
+  //
+  // |nsWritingIterator|s
+  //
+
+template <class CharT>
+inline
+PRBool
+operator==( const nsWritingIterator<CharT>& lhs, const nsWritingIterator<CharT>& rhs )
+  {
+    return lhs.get() == rhs.get();
+  }
+
+template <class CharT>
+inline
+PRBool
+operator!=( const nsWritingIterator<CharT>& lhs, const nsWritingIterator<CharT>& rhs )
+  {
+    return lhs.get() != rhs.get();
+  }
+
+#endif /* !defined(nsStringIterator_h___) */
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsSubstring.h b/src/libs/xpcom18a4/xpcom/string/public/nsSubstring.h
new file mode 100644
index 00000000..35a1a568
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsSubstring.h
@@ -0,0 +1,74 @@
+/* -*- 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 ***** */
+
+#ifndef nsSubstring_h___
+#define nsSubstring_h___
+
+#ifndef nsAString_h___
+#include "nsAString.h"
+#endif
+
+#define kNotFound -1
+
+// If some platform(s) can't handle our template that matches literal strings,
+// then we'll disable it on those platforms.
+#ifndef NS_DISABLE_LITERAL_TEMPLATE
+#  if (defined(_MSC_VER) && (_MSC_VER < 1310)) || (defined(__SUNPRO_CC) & (__SUNPRO_CC < 0x560)) || (defined(__HP_aCC) && (__HP_aCC <= 012100))
+#    define NS_DISABLE_LITERAL_TEMPLATE
+#  endif
+#endif /* !NS_DISABLE_LITERAL_TEMPLATE */
+
+#include <string.h>
+
+  // declare nsSubstring
+#include "string-template-def-unichar.h"
+#include "nsTSubstring.h"
+#include "string-template-undef.h"
+
+
+  // declare nsCSubstring
+#include "string-template-def-char.h"
+#include "nsTSubstring.h"
+#include "string-template-undef.h"
+
+
+#ifndef nsSubstringTuple_h___
+#include "nsSubstringTuple.h"
+#endif
+
+#endif // !defined(nsSubstring_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsSubstringTuple.h b/src/libs/xpcom18a4/xpcom/string/public/nsSubstringTuple.h
new file mode 100644
index 00000000..8cf6f803
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsSubstringTuple.h
@@ -0,0 +1,56 @@
+/* -*- 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 ***** */
+
+#ifndef nsSubstringTuple_h___
+#define nsSubstringTuple_h___
+
+#ifndef nsSubstring_h___
+#include "nsSubstring.h"
+#endif
+
+  // declare nsSubstringTuple
+#include "string-template-def-unichar.h"
+#include "nsTSubstringTuple.h"
+#include "string-template-undef.h"
+
+  // declare nsCSubstringTuple
+#include "string-template-def-char.h"
+#include "nsTSubstringTuple.h"
+#include "string-template-undef.h"
+
+#endif // !defined(nsSubstringTuple_h___)
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTAString.h b/src/libs/xpcom18a4/xpcom/string/public/nsTAString.h
new file mode 100644
index 00000000..93b88443
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTAString.h
@@ -0,0 +1,618 @@
+/* -*- 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):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *   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 ***** */
+
+
+  /**
+   * The base for string comparators
+   */
+class NS_COM nsTStringComparator_CharT
+  {
+    public:
+      typedef CharT char_type;
+
+      nsTStringComparator_CharT() {}
+
+      virtual int operator()( const char_type*, const char_type*, PRUint32 length ) const = 0;
+      virtual int operator()( char_type, char_type ) const = 0;
+  };
+
+
+  /**
+   * The default string comparator (case-sensitive comparision)
+   */
+class NS_COM nsTDefaultStringComparator_CharT
+    : public nsTStringComparator_CharT
+  {
+    public:
+      typedef CharT char_type;
+
+      nsTDefaultStringComparator_CharT() {}
+
+      virtual int operator()( const char_type*, const char_type*, PRUint32 length ) const;
+      virtual int operator()( char_type, char_type ) const;
+  };
+
+
+  /**
+   * nsTAString is the most abstract class in the string hierarchy.
+   *
+   * In its original inception, nsTAString was designed to allow the data
+   * storage for a string to be separated into multiple fragments.  This was
+   * intended to enable lazy string flattening or avoid string flattening
+   * altogether in some cases.  This abstraction, however, meant that every
+   * single string operation (including simple operations such as IsEmpty() and
+   * BeginReading()) required virtual function calls.  A virtual destructor was
+   * also required.  This not only meant additional overhead for invoking
+   * string methods but also added to additional codesize at every callsite (to
+   * load the virtual function address).
+   *
+   * Today nsTAString exists mainly for backwards compatibility of the string
+   * API.  It is restricted to representing a contiguous array of characters,
+   * where the character array is not necessarily null-terminated.  Moreover,
+   * since nsTAString's virtual function table was frozen for Mozilla 1.0,
+   * nsTAString necessarily maintains ABI compatibility with older versions of
+   * Gecko.  (nsTObsoleteAString provides that frozen ABI.  See
+   * nsObsoleteAString.h for a description of how we solve the ABI
+   * compatibility requirement while eliminating virtual function calls on
+   * nsTAString.)
+   *
+   * XPIDL still generates C++ header files with references to nsTAStrings, so
+   * nsTAString will still be heavily used in real code.
+   *
+   * If the opportunity to break ABI compatibility with Mozilla 1.0 were to
+   * ever arise, our first move should be to make nsTAString equate to
+   * nsTSubstring.  This may in fact be an option today for some Gecko-based
+   * products.
+   */
+class nsTAString_CharT
+  {
+    public:
+
+      typedef CharT                                  char_type;
+      typedef nsCharTraits<char_type>                char_traits;
+
+      typedef char_traits::incompatible_char_type    incompatible_char_type;
+
+      typedef nsTAString_CharT                       self_type;
+      typedef nsTAString_CharT                       abstract_string_type;
+      typedef nsTObsoleteAString_CharT               obsolete_string_type;
+      typedef nsTSubstring_CharT                     substring_type;
+      typedef nsTSubstringTuple_CharT                substring_tuple_type;
+
+      typedef nsReadingIterator<char_type>           const_iterator;
+      typedef nsWritingIterator<char_type>           iterator;
+
+      typedef nsTStringComparator_CharT              comparator_type;
+
+      typedef PRUint32                               size_type;
+      typedef PRUint32                               index_type;
+
+    public:
+
+        // this acts like a virtual destructor
+      NS_COM NS_FASTCALL ~nsTAString_CharT();
+
+
+        /**
+         * BeginReading/EndReading can be used to get immutable access to the
+         * string's underlying buffer.  EndReading returns a pointer to the
+         * end of the string's buffer.  nsReadableUtils.h provides a collection
+         * of utility functions that work with these iterators.
+         */
+
+      inline const_iterator& BeginReading( const_iterator& iter ) const
+        {
+          size_type len = GetReadableBuffer(&iter.mStart);
+          iter.mEnd = iter.mStart + len;
+          iter.mPosition = iter.mStart;
+          return iter;
+        }
+
+      inline const_iterator& EndReading( const_iterator& iter ) const
+        {
+          size_type len = GetReadableBuffer(&iter.mStart);
+          iter.mEnd = iter.mStart + len;
+          iter.mPosition = iter.mEnd;
+          return iter;
+        }
+
+
+        /**
+         * BeginWriting/EndWriting can be used to get mutable access to the
+         * string's underlying buffer.  EndWriting returns a pointer to the
+         * end of the string's buffer.  This iterator API cannot be used to
+         * grow a buffer.  Use SetLength to resize the string's buffer.
+         */
+
+      inline iterator& BeginWriting( iterator& iter )
+        {
+          size_type len = GetWritableBuffer(&iter.mStart);
+          iter.mEnd = iter.mStart + len;
+          iter.mPosition = iter.mStart;
+          return iter;
+        }
+
+      inline iterator& EndWriting( iterator& iter )
+        {
+          size_type len = GetWritableBuffer(&iter.mStart);
+          iter.mEnd = iter.mStart + len;
+          iter.mPosition = iter.mEnd;
+          return iter;
+        }
+
+
+        /**
+         * Length checking functions.  IsEmpty is a helper function to avoid
+         * writing code like: |if (str.Length() == 0)|
+         */
+
+      NS_COM size_type NS_FASTCALL Length() const;
+      PRBool IsEmpty() const { return Length() == 0; }
+
+
+        /**
+         * String equality tests.  Pass a string comparator if you want to
+         * control how the strings are compared.  By default, a binary
+         * "case-sensitive" comparision is performed.
+         */
+
+      NS_COM PRBool NS_FASTCALL Equals( const self_type& ) const;
+      NS_COM PRBool NS_FASTCALL Equals( const self_type&, const comparator_type& ) const;
+      NS_COM PRBool NS_FASTCALL Equals( const char_type* ) const;
+      NS_COM PRBool NS_FASTCALL Equals( const char_type*, const comparator_type& ) const;
+
+        /**
+         * An efficient comparison with ASCII that can be used even
+         * for wide strings. Call this version when you know the
+         * length of 'data'.
+         */
+      NS_COM PRBool NS_FASTCALL EqualsASCII( const char* data, size_type len ) const;
+        /**
+         * An efficient comparison with ASCII that can be used even
+         * for wide strings. Call this version when 'data' is
+         * null-terminated.
+         */
+      NS_COM PRBool NS_FASTCALL EqualsASCII( const char* data ) const;
+
+    // EqualsLiteral must ONLY be applied to an actual literal string.
+    // Do not attempt to use it with a regular char* pointer, or with a char
+    // array variable.
+    // The template trick to acquire the array length at compile time without
+    // using a macro is due to Corey Kosak, with much thanks.
+#ifdef NS_DISABLE_LITERAL_TEMPLATE
+      inline PRBool EqualsLiteral( const char* str ) const
+        {
+          return EqualsASCII(str);
+        }
+#else
+      template<int N>
+      inline PRBool EqualsLiteral( const char (&str)[N] ) const
+        {
+          return EqualsASCII(str, N-1);
+        }
+      template<int N>
+      inline PRBool EqualsLiteral( char (&str)[N] ) const
+        {
+          const char* s = str;
+          return EqualsASCII(s, N-1);
+        }
+#endif
+
+    // The LowerCaseEquals methods compare the lower case version of
+    // this string to some ASCII/Literal string. The ASCII string is
+    // *not* lowercased for you. If you compare to an ASCII or literal
+    // string that contains an uppercase character, it is guaranteed to
+    // return false. We will throw assertions too.
+      NS_COM PRBool NS_FASTCALL LowerCaseEqualsASCII( const char* data, size_type len ) const;
+      NS_COM PRBool NS_FASTCALL LowerCaseEqualsASCII( const char* data ) const;
+
+    // LowerCaseEqualsLiteral must ONLY be applied to an actual
+    // literal string.  Do not attempt to use it with a regular char*
+    // pointer, or with a char array variable. Use
+    // LowerCaseEqualsASCII for them.
+#ifdef NS_DISABLE_LITERAL_TEMPLATE
+      inline PRBool LowerCaseEqualsLiteral( const char* str ) const
+        {
+          return LowerCaseEqualsASCII(str);
+        }
+#else
+      template<int N>
+      inline PRBool LowerCaseEqualsLiteral( const char (&str)[N] ) const
+        {
+          return LowerCaseEqualsASCII(str, N-1);
+        }
+      template<int N>
+      inline PRBool LowerCaseEqualsLiteral( char (&str)[N] ) const
+        {
+          const char* s = str;
+          return LowerCaseEqualsASCII(s, N-1);
+        }
+#endif
+
+        /**
+         * A string always references a non-null data pointer.  In some
+         * applications (e.g., the DOM) it is necessary for a string class
+         * to have some way to distinguish an empty string from a null (or
+         * void) string.  These methods enable support for the concept of
+         * a void string.
+         */
+
+      NS_COM PRBool NS_FASTCALL IsVoid() const;
+      NS_COM void NS_FASTCALL SetIsVoid( PRBool );
+
+
+        /**
+         * This method returns true if the string's underlying buffer is
+         * null-terminated.  This should rarely be needed by applications.
+         * The PromiseFlatTString method should be used to ensure that a
+         * string's underlying buffer is null-terminated.
+         */
+
+      NS_COM PRBool NS_FASTCALL IsTerminated() const;
+
+
+        /**
+         * These are contant time since nsTAString uses flat storage
+         */
+      NS_COM char_type NS_FASTCALL First() const;
+      NS_COM char_type NS_FASTCALL Last() const;
+
+
+        /**
+         * Returns the number of occurances of the given character.
+         */
+      NS_COM size_type NS_FASTCALL CountChar( char_type ) const;
+
+
+        /**
+         * Locates the offset of the first occurance of the character.  Pass a
+         * non-zero offset to control where the search begins.
+         */
+
+      NS_COM PRInt32 NS_FASTCALL FindChar( char_type, index_type offset = 0 ) const;
+
+
+        /**
+         * SetCapacity is not required to do anything; however, it can be used
+         * as a hint to the implementation to reduce allocations.
+         *
+         * SetCapacity(0) is a suggestion to discard all associated storage.
+         */
+      NS_COM void NS_FASTCALL SetCapacity( size_type );
+
+
+        /**
+         * XXX talk to dbaron about this comment.  we do need a method that
+         * XXX allows someone to resize a string's buffer so that it can be
+         * XXX populated using writing iterators.  SetLength seems to be the
+         * XXX right method for the job, and we do use it in this capacity
+         * XXX in certain places.
+         *
+         * SetLength is used in two ways:
+         *   1) to |Cut| a suffix of the string;
+         *   2) to prepare to |Append| or move characters around.
+         *
+         * External callers are not allowed to use |SetLength| in this
+         * latter capacity, and should prefer |Truncate| for the former.
+         * In other words, |SetLength| is deprecated for all use outside
+         * of the string library and the internal use may at some point
+         * be replaced as well.
+         *
+         * This distinction makes me think the two different uses should
+         * be split into two distinct functions.
+         */
+      NS_COM void NS_FASTCALL SetLength( size_type );
+
+
+        /**
+         * Can't use |Truncate| to make a string longer!
+         */
+      void Truncate( size_type aNewLength=0 )
+        {
+          NS_ASSERTION(aNewLength <= Length(), "Truncate cannot make string longer");
+          SetLength(aNewLength);
+        }
+
+
+        /**
+         * |Assign| and |operator=| make |this| equivalent to the string or
+         * buffer given as an argument.  If possible, they do this by sharing
+         * a reference counted buffer (see |nsTSubstring|).  If not, they copy
+         * the buffer into their own buffer.
+         */
+
+      NS_COM void NS_FASTCALL Assign( const self_type& readable );
+      NS_COM void NS_FASTCALL Assign( const substring_tuple_type& tuple );
+      NS_COM void NS_FASTCALL Assign( const char_type* data );
+      NS_COM void NS_FASTCALL Assign( const char_type* data, size_type length );
+      NS_COM void NS_FASTCALL Assign( char_type c );
+
+      NS_COM void NS_FASTCALL AssignASCII( const char* data, size_type length );
+      NS_COM void NS_FASTCALL AssignASCII( const char* data );
+
+    // AssignLiteral must ONLY be applied to an actual literal string.
+    // Do not attempt to use it with a regular char* pointer, or with a char
+    // array variable. Use AssignASCII for those.
+#ifdef NS_DISABLE_LITERAL_TEMPLATE
+      void AssignLiteral( const char* str )
+                  { AssignASCII(str); }
+#else
+      template<int N>
+      void AssignLiteral( const char (&str)[N] )
+                  { AssignASCII(str, N-1); }
+      template<int N>
+      void AssignLiteral( char (&str)[N] )
+                  { AssignASCII(str, N-1); }
+#endif
+
+        // copy-assignment operator.  I must define my own if I don't want the compiler to make me one
+      self_type& operator=( const self_type& readable )                                             { Assign(readable); return *this; }
+      self_type& operator=( const substring_tuple_type& tuple )                                     { Assign(tuple); return *this; }
+      self_type& operator=( const char_type* data )                                                 { Assign(data); return *this; }
+      self_type& operator=( char_type c )                                                           { Assign(c); return *this; }
+
+
+
+        /**
+         * |Append|, |operator+=| are used to add characters to the end of this string.
+         */ 
+
+      NS_COM void NS_FASTCALL Append( const self_type& readable );
+      NS_COM void NS_FASTCALL Append( const substring_tuple_type& tuple );
+      NS_COM void NS_FASTCALL Append( const char_type* data );
+      NS_COM void NS_FASTCALL Append( const char_type* data, size_type length );
+      NS_COM void NS_FASTCALL Append( char_type c );
+
+      NS_COM void NS_FASTCALL AppendASCII( const char* data, size_type length );
+      NS_COM void NS_FASTCALL AppendASCII( const char* data );
+
+    // AppendLiteral must ONLY be applied to an actual literal string.
+    // Do not attempt to use it with a regular char* pointer, or with a char
+    // array variable. Use AppendASCII for those.
+#ifdef NS_DISABLE_LITERAL_TEMPLATE
+      void AppendLiteral( const char* str )
+                  { AppendASCII(str); }
+#else
+      template<int N>
+      void AppendLiteral( const char (&str)[N] )
+                  { AppendASCII(str, N-1); }
+      template<int N>
+      void AppendLiteral( char (&str)[N] )
+                  { AppendASCII(str, N-1); }
+#endif
+
+      self_type& operator+=( const self_type& readable )                                            { Append(readable); return *this; }
+      self_type& operator+=( const substring_tuple_type& tuple )                                    { Append(tuple); return *this; }
+      self_type& operator+=( const char_type* data )                                                { Append(data); return *this; }
+      self_type& operator+=( char_type c )                                                          { Append(c); return *this; }
+
+
+        /**
+         * |Insert| is used to add characters into this string at a given position.
+         * NOTE: It's a shame the |pos| parameter isn't at the front of the arg list.
+         */ 
+
+      NS_COM void NS_FASTCALL Insert( const self_type& readable, index_type pos );
+      NS_COM void NS_FASTCALL Insert( const substring_tuple_type& tuple, index_type pos );
+      NS_COM void NS_FASTCALL Insert( const char_type* data, index_type pos );
+      NS_COM void NS_FASTCALL Insert( const char_type* data, index_type pos, size_type length );
+      NS_COM void NS_FASTCALL Insert( char_type c, index_type pos );
+
+
+        /**
+         * |Cut| is used to remove a range of characters from this string.
+         */
+
+      NS_COM void NS_FASTCALL Cut( index_type cutStart, size_type cutLength );
+
+      
+        /**
+         * |Replace| is used overwrite a range of characters from this string.
+         */
+
+      NS_COM void NS_FASTCALL Replace( index_type cutStart, size_type cutLength, const self_type& readable );
+      NS_COM void NS_FASTCALL Replace( index_type cutStart, size_type cutLength, const substring_tuple_type& readable );
+
+      
+        /**
+         * this is public to support automatic conversion of tuple to abstract
+         * string, which is necessary to support our API.
+         */
+      nsTAString_CharT(const substring_tuple_type& tuple)
+        : mVTable(obsolete_string_type::sCanonicalVTable)
+        , mData(nsnull)
+        , mLength(0)
+        , mFlags(0)
+        {
+          Assign(tuple);
+        }
+
+    protected:
+
+      friend class nsTSubstringTuple_CharT;
+
+      // GCC 3.2 erroneously needs these (even though they are subclasses!)
+      friend class nsTSubstring_CharT;
+      friend class nsTDependentSubstring_CharT;
+      friend class nsTPromiseFlatString_CharT;
+
+        /**
+         * the address of our virtual function table.  required for backwards
+         * compatibility with Mozilla 1.0 frozen nsAC?String interface.
+         */
+      const void* mVTable;
+
+        /**
+         * these fields are "here" only when mVTable == sCanonicalVTable.
+         *
+         * they exist to support automatic construction of a nsTAString
+         * from a nsTSubstringTuple.
+         */
+      char_type*  mData;
+      size_type   mLength;
+      PRUint32    mFlags;
+
+        /**
+         * nsTAString must be subclassed before it can be instantiated.
+         */
+      nsTAString_CharT(char_type* data, size_type length, PRUint32 flags)
+        : mVTable(obsolete_string_type::sCanonicalVTable)
+        , mData(data)
+        , mLength(length)
+        , mFlags(flags)
+        {}
+
+        /**
+         * optional ctor for use by subclasses.
+         *
+         * NOTE: mData and mLength are intentionally left uninitialized.
+         */
+      explicit
+      nsTAString_CharT(PRUint32 flags)
+        : mVTable(obsolete_string_type::sCanonicalVTable)
+        , mFlags(flags)
+        {}
+
+        /**
+         * get pointer to internal string buffer (may not be null terminated).
+         * return length of buffer.
+         */
+      NS_COM size_type NS_FASTCALL GetReadableBuffer( const char_type **data ) const;
+      NS_COM size_type NS_FASTCALL GetWritableBuffer(       char_type **data );
+
+        /**
+         * returns true if this tuple is dependent on (i.e., overlapping with)
+         * the given char sequence.
+         */
+      PRBool NS_FASTCALL IsDependentOn(const char_type *start, const char_type *end) const;
+
+        /**
+         * we can be converted to a const nsTSubstring (dependent on this)
+         */
+      const substring_type NS_FASTCALL ToSubstring() const;
+
+        /**
+         * type cast helpers
+         */
+
+      const obsolete_string_type* AsObsoleteString() const
+        {
+          return NS_REINTERPRET_CAST(const obsolete_string_type*, this);
+        }
+
+      obsolete_string_type* AsObsoleteString()
+        {
+          return NS_REINTERPRET_CAST(obsolete_string_type*, this);
+        }
+
+      const substring_type* AsSubstring() const
+        {
+          return NS_REINTERPRET_CAST(const substring_type*, this);
+        }
+
+      substring_type* AsSubstring()
+        {
+          return NS_REINTERPRET_CAST(substring_type*, this);
+        }
+
+    private:
+
+        // GCC 2.95.3, EGCS-2.91.66, Sun Workshop/Forte, and IBM VisualAge C++
+        // require a public copy-constructor in order to support automatic
+        // construction of a nsTAString from a nsTSubstringTuple.  I believe
+        // enabling the default copy-constructor is harmless, but I do not want
+        // it to be enabled by default because that might tempt people into
+        // using it (where it would be invalid).
+#if !defined(__SUNPRO_CC) && \
+   !(defined(_AIX) && defined(__IBMCPP__)) && \
+   (!defined(__GNUC__) || __GNUC__ > 2 || __GNUC_MINOR__ > 95)
+
+        // NOT TO BE IMPLEMENTED
+      nsTAString_CharT( const self_type& );
+
+#endif
+
+        // NOT TO BE IMPLEMENTED
+      void operator=     ( incompatible_char_type );
+      void Assign        ( incompatible_char_type );
+      void operator+=    ( incompatible_char_type );
+      void Append        ( incompatible_char_type );
+      void Insert        ( incompatible_char_type, index_type );
+  };
+
+
+NS_COM
+int NS_FASTCALL Compare( const nsTAString_CharT& lhs, const nsTAString_CharT& rhs, const nsTStringComparator_CharT& = nsTDefaultStringComparator_CharT() );
+
+
+inline
+PRBool operator!=( const nsTAString_CharT& lhs, const nsTAString_CharT& rhs )
+  {
+    return !lhs.Equals(rhs);
+  }
+
+inline
+PRBool operator< ( const nsTAString_CharT& lhs, const nsTAString_CharT& rhs )
+  {
+    return Compare(lhs, rhs)< 0;
+  }
+
+inline
+PRBool operator<=( const nsTAString_CharT& lhs, const nsTAString_CharT& rhs )
+  {
+    return Compare(lhs, rhs)<=0;
+  }
+
+inline
+PRBool operator==( const nsTAString_CharT& lhs, const nsTAString_CharT& rhs )
+  {
+    return lhs.Equals(rhs);
+  }
+
+inline
+PRBool operator>=( const nsTAString_CharT& lhs, const nsTAString_CharT& rhs )
+  {
+    return Compare(lhs, rhs)>=0;
+  }
+
+inline
+PRBool operator> ( const nsTAString_CharT& lhs, const nsTAString_CharT& rhs )
+  {
+    return Compare(lhs, rhs)> 0;
+  }
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTDependentString.h b/src/libs/xpcom18a4/xpcom/string/public/nsTDependentString.h
new file mode 100644
index 00000000..91a2b53e
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTDependentString.h
@@ -0,0 +1,137 @@
+/* -*- 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):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *   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 ***** */
+
+
+  /**
+   * nsTDependentString_CharT
+   *
+   * Stores a null-terminated, immutable sequence of characters.
+   *
+   * Subclass of nsTString that restricts string value to an immutable
+   * character sequence.  This class does not own its data, so the creator
+   * of objects of this type must take care to ensure that a
+   * nsTDependentString continues to reference valid memory for the
+   * duration of its use.
+   */
+class nsTDependentString_CharT : public nsTString_CharT
+  {
+    public:
+
+      typedef nsTDependentString_CharT    self_type;
+
+    public:
+
+        /**
+         * verify restrictions
+         */
+      void AssertValid()
+        {
+          NS_ASSERTION(mData, "nsTDependentString must wrap a non-NULL buffer");
+          NS_ASSERTION(mLength != size_type(-1), "nsTDependentString has bogus length");
+          NS_ASSERTION(mData[mLength] == 0, "nsTDependentString must wrap only null-terminated strings");
+        }
+
+
+        /**
+         * constructors
+         */
+
+      nsTDependentString_CharT( const char_type* start, const char_type* end )
+        : string_type(NS_CONST_CAST(char_type*, start), end - start, F_TERMINATED)
+        {
+          AssertValid();
+        }
+
+      nsTDependentString_CharT( const char_type* data, PRUint32 length )
+        : string_type(NS_CONST_CAST(char_type*, data), length, F_TERMINATED)
+        {
+          AssertValid();
+        }
+
+      explicit
+      nsTDependentString_CharT( const char_type* data )
+        : string_type(NS_CONST_CAST(char_type*, data), char_traits::length(data), F_TERMINATED)
+        {
+          AssertValid();
+        }
+
+      explicit
+      nsTDependentString_CharT( const substring_type& str )
+        : string_type(NS_CONST_CAST(char_type*, str.Data()), str.Length(), F_TERMINATED)
+        {
+          AssertValid();
+        }
+
+      // XXX are you sure??
+      // auto-generated copy-constructor OK
+      // auto-generated copy-assignment operator OK
+      // auto-generated destructor OK
+
+
+        /**
+         * allow this class to be bound to a different string...
+         */
+
+      void Rebind( const char_type* data )
+        {
+          mData = NS_CONST_CAST(char_type*, data);
+          mLength = char_traits::length(data);
+          SetDataFlags(F_TERMINATED);
+          AssertValid();
+        }
+
+      void Rebind( const char_type* data, size_type length )
+        {
+          mData = NS_CONST_CAST(char_type*, data);
+          mLength = length;
+          SetDataFlags(F_TERMINATED);
+          AssertValid();
+        }
+
+      void Rebind( const char_type* start, const char_type* end )
+        {
+          Rebind(start, end - start);
+        }
+
+    private:
+      
+      // NOT USED
+      nsTDependentString_CharT( const substring_tuple_type& );
+      nsTDependentString_CharT( const abstract_string_type& );
+  };
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTDependentSubstring.h b/src/libs/xpcom18a4/xpcom/string/public/nsTDependentSubstring.h
new file mode 100644
index 00000000..89d96e13
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTDependentSubstring.h
@@ -0,0 +1,142 @@
+/* -*- 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):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *   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 ***** */
+
+
+  /**
+   * nsTDependentSubstring_CharT
+   */
+class nsTDependentSubstring_CharT : public nsTSubstring_CharT
+  {
+    public:
+
+      typedef nsTDependentSubstring_CharT    self_type;
+
+    public:
+
+      NS_COM void Rebind( const abstract_string_type&, PRUint32 startPos, PRUint32 length = size_type(-1) );
+      NS_COM void Rebind( const substring_type&, PRUint32 startPos, PRUint32 length = size_type(-1) );
+
+      void Rebind( const char_type* start, const char_type* end )
+        {
+          NS_ASSERTION(start && end, "nsTDependentSubstring must wrap a non-NULL buffer");
+          mData = NS_CONST_CAST(char_type*, start);
+          mLength = end - start;
+          SetDataFlags(F_NONE);
+        }
+
+      nsTDependentSubstring_CharT( const abstract_string_type& str, PRUint32 startPos, PRUint32 length = size_type(-1) )
+        : substring_type(F_NONE)
+        {
+          Rebind(str, startPos, length);
+        }
+
+      nsTDependentSubstring_CharT( const substring_type& str, PRUint32 startPos, PRUint32 length = size_type(-1) )
+        : substring_type(F_NONE)
+        {
+          Rebind(str, startPos, length);
+        }
+
+      nsTDependentSubstring_CharT( const char_type* start, const char_type* end )
+        : substring_type(NS_CONST_CAST(char_type*, start), end - start, F_NONE) {}
+
+      nsTDependentSubstring_CharT( const const_iterator& start, const const_iterator& end )
+        : substring_type(NS_CONST_CAST(char_type*, start.get()), end.get() - start.get(), F_NONE) {}
+
+      // auto-generated copy-constructor OK (XXX really?? what about base class copy-ctor?)
+
+    private:
+        // NOT USED
+      void operator=( const self_type& );        // we're immutable, you can't assign into a substring
+  };
+
+inline
+const nsTDependentSubstring_CharT
+Substring( const nsTAString_CharT& str, PRUint32 startPos, PRUint32 length = PRUint32(-1) )
+  {
+    return nsTDependentSubstring_CharT(str, startPos, length);
+  }
+
+inline
+const nsTDependentSubstring_CharT
+Substring( const nsTSubstring_CharT& str, PRUint32 startPos, PRUint32 length = PRUint32(-1) )
+  {
+    return nsTDependentSubstring_CharT(str, startPos, length);
+  }
+
+inline
+const nsTDependentSubstring_CharT
+Substring( const nsReadingIterator<CharT>& start, const nsReadingIterator<CharT>& end )
+  {
+    return nsTDependentSubstring_CharT(start.get(), end.get());
+  }
+
+inline
+const nsTDependentSubstring_CharT
+Substring( const CharT* start, const CharT* end )
+  {
+    return nsTDependentSubstring_CharT(start, end);
+  }
+
+inline
+const nsTDependentSubstring_CharT
+StringHead( const nsTAString_CharT& str, PRUint32 count )
+  {
+    return nsTDependentSubstring_CharT(str, 0, count);
+  }
+
+inline
+const nsTDependentSubstring_CharT
+StringHead( const nsTSubstring_CharT& str, PRUint32 count )
+  {
+    return nsTDependentSubstring_CharT(str, 0, count);
+  }
+
+inline
+const nsTDependentSubstring_CharT
+StringTail( const nsTAString_CharT& str, PRUint32 count )
+  {
+    return nsTDependentSubstring_CharT(str, str.Length() - count, count);
+  }
+
+inline
+const nsTDependentSubstring_CharT
+StringTail( const nsTSubstring_CharT& str, PRUint32 count )
+  {
+    return nsTDependentSubstring_CharT(str, str.Length() - count, count);
+  }
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTObsoleteAString.h b/src/libs/xpcom18a4/xpcom/string/public/nsTObsoleteAString.h
new file mode 100644
index 00000000..82d5f56c
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTObsoleteAString.h
@@ -0,0 +1,165 @@
+/* -*- 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 ***** */
+
+
+  /**
+   * nsTObsoleteAString_CharT : binary compatible with old nsAC?String vtable
+   *
+   * @status FROZEN
+   */
+class nsTObsoleteAString_CharT
+  {
+    public:
+      /**
+       * This is holds the address of the vtable for the canonical string
+       * implementation (i.e., nsTString).
+       */
+      NS_COM static const void *sCanonicalVTable;
+
+        /**
+         * An |nsFragmentRequest| is used to tell |GetReadableFragment| and
+         * |GetWritableFragment| what to do.
+         *
+         * @see GetReadableFragment
+         */
+      enum nsFragmentRequest { kPrevFragment, kFirstFragment, kLastFragment, kNextFragment, kFragmentAt };
+
+        /**
+         * A |nsReadableFragment| provides |const| access to a contiguous hunk of
+         * string of homogenous units, e.g., bytes (|char|).  This doesn't mean it
+         * represents a flat hunk.  It could be a variable length encoding, for
+         * instance UTF-8.  And the fragment itself need not be zero-terminated.
+         *
+         * An |nsReadableFragment| is the underlying machinery that lets
+         * |nsReadingIterator|s work.
+         *
+         * @see nsReadingIterator
+         * @status FROZEN
+         */
+      struct nsReadableFragment
+        {
+          const CharT*  mStart;
+          const CharT*  mEnd;
+          const void*   mFragmentIdentifier;
+
+          nsReadableFragment() : mStart(0), mEnd(0), mFragmentIdentifier(0) {}
+        };
+
+
+        /**
+         * A |nsWritableFragment| provides non-|const| access to a contiguous hunk of
+         * string of homogenous units, e.g., bytes (|char|).  This doesn't mean it
+         * represents a flat hunk.  It could be a variable length encoding, for
+         * instance UTF-8.  And the fragment itself need not be zero-terminated.
+         *
+         * An |nsWritableFragment| is the underlying machinery that lets
+         * |nsWritingIterator|s work.
+         *
+         * @see nsWritingIterator
+         * @status FROZEN
+         */
+      struct nsWritableFragment
+        {
+          CharT*    mStart;
+          CharT*    mEnd;
+          void*     mFragmentIdentifier;
+
+          nsWritableFragment() : mStart(0), mEnd(0), mFragmentIdentifier(0) {}
+        };
+
+    protected:
+
+      typedef CharT                                char_type;
+
+      typedef void                                 buffer_handle_type;
+      typedef void                                 shared_buffer_handle_type;
+      typedef nsReadableFragment                   const_fragment_type;
+      typedef nsWritableFragment                   fragment_type;
+
+      typedef nsTAString_CharT                     abstract_string_type;
+
+      typedef PRUint32                             size_type;
+      typedef PRUint32                             index_type;
+
+    protected:
+
+      friend class nsTAString_CharT;
+      friend class nsTSubstring_CharT;
+
+      /** here's the old nsAC?String vtable **/
+
+      virtual ~nsTObsoleteAString_CharT() { }
+
+      virtual PRUint32                          GetImplementationFlags() const = 0;
+      virtual const        buffer_handle_type*  GetFlatBufferHandle()    const = 0;
+      virtual const        buffer_handle_type*  GetBufferHandle()        const = 0;
+      virtual const shared_buffer_handle_type*  GetSharedBufferHandle()  const = 0;
+
+      virtual size_type Length() const = 0;
+
+      virtual PRBool IsVoid() const = 0;
+      virtual void SetIsVoid( PRBool ) = 0;
+
+      virtual void SetCapacity( size_type ) = 0;
+      virtual void SetLength( size_type ) = 0;
+
+      virtual void Cut( index_type cutStart, size_type cutLength ) = 0;
+
+      virtual void do_AssignFromReadable( const abstract_string_type& ) = 0;
+      virtual void do_AssignFromElementPtr( const char_type* ) = 0;
+      virtual void do_AssignFromElementPtrLength( const char_type*, size_type ) = 0;
+      virtual void do_AssignFromElement( char_type ) = 0;
+
+      virtual void do_AppendFromReadable( const abstract_string_type& ) = 0;
+      virtual void do_AppendFromElementPtr( const char_type* ) = 0;
+      virtual void do_AppendFromElementPtrLength( const char_type*, size_type ) = 0;
+      virtual void do_AppendFromElement( char_type ) = 0;
+
+      virtual void do_InsertFromReadable( const abstract_string_type&, index_type ) = 0;
+      virtual void do_InsertFromElementPtr( const char_type*, index_type ) = 0;
+      virtual void do_InsertFromElementPtrLength( const char_type*, index_type, size_type ) = 0;
+      virtual void do_InsertFromElement( char_type, index_type ) = 0;
+
+      virtual void do_ReplaceFromReadable( index_type, size_type, const abstract_string_type& ) = 0;
+
+      virtual const char_type* GetReadableFragment( const_fragment_type&, nsFragmentRequest, PRUint32 = 0 ) const = 0;
+      virtual       char_type* GetWritableFragment(       fragment_type&, nsFragmentRequest, PRUint32 = 0 ) = 0;
+  };
+
+  // forward declare implementation
+class nsTObsoleteAStringThunk_CharT;
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTPromiseFlatString.h b/src/libs/xpcom18a4/xpcom/string/public/nsTPromiseFlatString.h
new file mode 100644
index 00000000..6cf82f60
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTPromiseFlatString.h
@@ -0,0 +1,158 @@
+/* -*- 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):
+ *   Scott Collins <scc@mozilla.org> (original author)
+ *   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 ***** */
+
+
+  /**
+   * NOTE:
+   *
+   * Try to avoid flat strings.  |PromiseFlat[C]String| will help you as a last
+   * resort, and this may be necessary when dealing with legacy or OS calls,
+   * but in general, requiring a null-terminated array of characters kills many
+   * of the performance wins the string classes offer.  Write your own code to
+   * use |nsA[C]String&|s for parameters.  Write your string proccessing
+   * algorithms to exploit iterators.  If you do this, you will benefit from
+   * being able to chain operations without copying or allocating and your code
+   * will be significantly more efficient.  Remember, a function that takes an
+   * |const nsA[C]String&| can always be passed a raw character pointer by
+   * wrapping it (for free) in a |nsDependent[C]String|.  But a function that
+   * takes a character pointer always has the potential to force allocation and
+   * copying.
+   *
+   *
+   * How to use it:
+   *
+   * A |nsPromiseFlat[C]String| doesn't necessarily own the characters it
+   * promises.  You must never use it to promise characters out of a string
+   * with a shorter lifespan.  The typical use will be something like this:
+   *
+   *   SomeOSFunction( PromiseFlatCString(aCString).get() ); // GOOD
+   *
+   * Here's a BAD use:
+   *
+   *  const char* buffer = PromiseFlatCString(aCString).get();
+   *  SomeOSFunction(buffer); // BAD!! |buffer| is a dangling pointer
+   *
+   * The only way to make one is with the function |PromiseFlat[C]String|,
+   * which produce a |const| instance.  ``What if I need to keep a promise
+   * around for a little while?'' you might ask.  In that case, you can keep a
+   * reference, like so
+   *
+   *   const nsPromiseFlatString& flat = PromiseFlatString(aString);
+   *     // this reference holds the anonymous temporary alive, but remember,
+   *     // it must _still_ have a lifetime shorter than that of |aString|
+   *
+   *  SomeOSFunction(flat.get());
+   *  SomeOtherOSFunction(flat.get());
+   *
+   *
+   * How does it work?
+   *
+   * A |nsPromiseFlat[C]String| is just a wrapper for another string.  If you
+   * apply it to a string that happens to be flat, your promise is just a
+   * dependent reference to the string's data.  If you apply it to a non-flat
+   * string, then a temporary flat string is created for you, by allocating and
+   * copying.  In the event that you end up assigning the result into a sharing
+   * string (e.g., |nsTString|), the right thing happens.
+   */
+
+class nsTPromiseFlatString_CharT : public nsTString_CharT
+  {
+    public:
+
+      typedef nsTPromiseFlatString_CharT    self_type;
+
+    private:
+
+      NS_COM void Init( const substring_type& );
+      NS_COM void Init( const abstract_string_type& );
+
+        // NOT TO BE IMPLEMENTED
+      void operator=( const self_type& );
+
+        // NOT TO BE IMPLEMENTED
+      nsTPromiseFlatString_CharT();
+
+    public:
+
+      explicit
+      nsTPromiseFlatString_CharT( const substring_type& str )
+        : string_type()
+        {
+          Init(str);
+        }
+
+      explicit
+      nsTPromiseFlatString_CharT( const abstract_string_type& readable )
+        : string_type()
+        {
+          Init(readable);
+        }
+
+      explicit
+      nsTPromiseFlatString_CharT( const substring_tuple_type& tuple )
+        : string_type()
+        {
+          // nothing else to do here except assign the value of the tuple
+          // into ourselves.
+          Assign(tuple);
+        }
+  };
+
+inline
+const nsTPromiseFlatString_CharT
+TPromiseFlatString_CharT( const nsTAString_CharT& str )
+  {
+    return nsTPromiseFlatString_CharT(str);
+  }
+
+  // e.g., PromiseFlatCString(Substring(s))
+inline
+const nsTPromiseFlatString_CharT
+TPromiseFlatString_CharT( const nsTSubstring_CharT& frag )
+  {
+    return nsTPromiseFlatString_CharT(frag);
+  }
+
+  // e.g., PromiseFlatCString(a + b)
+inline
+const nsTPromiseFlatString_CharT
+TPromiseFlatString_CharT( const nsTSubstringTuple_CharT& tuple )
+  {
+    return nsTPromiseFlatString_CharT(tuple);
+  }
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTString.h b/src/libs/xpcom18a4/xpcom/string/public/nsTString.h
new file mode 100644
index 00000000..2ef241b2
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTString.h
@@ -0,0 +1,721 @@
+/* -*- 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):
+ *   Rick Gessner <rickg@netscape.com> (original author)
+ *   Scott Collins <scc@mozilla.org>
+ *   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 ***** */
+
+
+  /**
+   * This is the canonical null-terminated string class.  All subclasses
+   * promise null-terminated storage.  Instances of this class allocate
+   * strings on the heap.
+   *
+   * This class is also known as nsAFlat[C]String, where "flat" is used
+   * to denote a null-terminated string.
+   */
+class nsTString_CharT : public nsTSubstring_CharT
+  {
+    public:
+
+      typedef nsTString_CharT    self_type;
+
+    public:
+
+        /**
+         * constructors
+         */
+
+      nsTString_CharT()
+        : substring_type() {}
+
+      explicit
+      nsTString_CharT( char_type c )
+        : substring_type()
+        {
+          Assign(c);
+        }
+
+      explicit
+      nsTString_CharT( const char_type* data, size_type length = size_type(-1) )
+        : substring_type()
+        {
+          Assign(data, length);
+        }
+
+      nsTString_CharT( const self_type& str )
+        : substring_type()
+        {
+          Assign(str);
+        }
+
+      nsTString_CharT( const substring_tuple_type& tuple )
+        : substring_type()
+        {
+          Assign(tuple);
+        }
+
+      explicit
+      nsTString_CharT( const abstract_string_type& readable )
+        : substring_type()
+        {
+          Assign(readable);
+        }
+
+
+        // |operator=| does not inherit, so we must define our own
+      self_type& operator=( char_type c )                                                       { Assign(c);        return *this; }
+      self_type& operator=( const char_type* data )                                             { Assign(data);     return *this; }
+      self_type& operator=( const self_type& str )                                              { Assign(str);      return *this; }
+      self_type& operator=( const substring_type& str )                                         { Assign(str);      return *this; }
+      self_type& operator=( const substring_tuple_type& tuple )                                 { Assign(tuple);    return *this; }
+      self_type& operator=( const abstract_string_type& readable )                              { Assign(readable); return *this; }
+
+
+        /**
+         * returns the null-terminated string
+         */
+
+      const char_type* get() const
+        {
+          return mData;
+        }
+
+
+        /**
+         * returns character at specified index.
+         *         
+         * NOTE: unlike nsTSubstring::CharAt, this function allows you to index
+         *       the null terminator character.
+         */
+
+      char_type CharAt( index_type i ) const
+        {
+          NS_ASSERTION(i <= mLength, "index exceeds allowable range");
+          return mData[i];
+        }
+
+      char_type operator[]( index_type i ) const
+        {
+          return CharAt(i);
+        }
+
+
+#if MOZ_STRING_WITH_OBSOLETE_API
+
+
+        /**
+         *  Search for the given substring within this string.
+         *  
+         *  @param   aString is substring to be sought in this
+         *  @param   aIgnoreCase selects case sensitivity
+         *  @param   aOffset tells us where in this string to start searching
+         *  @param   aCount tells us how far from the offset we are to search. Use
+         *           -1 to search the whole string.
+         *  @return  offset in string, or kNotFound
+         */
+
+      NS_COM PRInt32 Find( const nsCString& aString, PRBool aIgnoreCase=PR_FALSE, PRInt32 aOffset=0, PRInt32 aCount=-1 ) const;
+      NS_COM PRInt32 Find( const char* aString, PRBool aIgnoreCase=PR_FALSE, PRInt32 aOffset=0, PRInt32 aCount=-1 ) const;
+
+#ifdef CharT_is_PRUnichar
+      NS_COM PRInt32 Find( const nsAFlatString& aString, PRInt32 aOffset=0, PRInt32 aCount=-1 ) const;
+      NS_COM PRInt32 Find( const PRUnichar* aString, PRInt32 aOffset=0, PRInt32 aCount=-1 ) const;
+#endif
+
+        
+        /**
+         * This methods scans the string backwards, looking for the given string
+         *
+         * @param   aString is substring to be sought in this
+         * @param   aIgnoreCase tells us whether or not to do caseless compare
+         * @param   aOffset tells us where in this string to start searching.
+         *          Use -1 to search from the end of the string.
+         * @param   aCount tells us how many iterations to make starting at the
+         *          given offset.
+         * @return  offset in string, or kNotFound
+         */
+
+      NS_COM PRInt32 RFind( const nsCString& aString, PRBool aIgnoreCase=PR_FALSE, PRInt32 aOffset=-1, PRInt32 aCount=-1 ) const;
+      NS_COM PRInt32 RFind( const char* aCString, PRBool aIgnoreCase=PR_FALSE, PRInt32 aOffset=-1, PRInt32 aCount=-1 ) const;
+
+#ifdef CharT_is_PRUnichar
+      NS_COM PRInt32 RFind( const nsAFlatString& aString, PRInt32 aOffset=-1, PRInt32 aCount=-1 ) const;
+      NS_COM PRInt32 RFind( const PRUnichar* aString, PRInt32 aOffset=-1, PRInt32 aCount=-1 ) const;
+#endif
+
+
+        /**
+         *  Search for given char within this string
+         *  
+         *  @param   aChar is the character to search for
+         *  @param   aOffset tells us where in this strig to start searching
+         *  @param   aCount tells us how far from the offset we are to search.
+         *           Use -1 to search the whole string.
+         *  @return  offset in string, or kNotFound
+         */
+
+      // PRInt32 FindChar( PRUnichar aChar, PRInt32 aOffset=0, PRInt32 aCount=-1 ) const;
+      NS_COM PRInt32 RFindChar( PRUnichar aChar, PRInt32 aOffset=-1, PRInt32 aCount=-1 ) const;
+
+
+        /**
+         * This method searches this string for the first character found in
+         * the given string.
+         *
+         * @param aString contains set of chars to be found
+         * @param aOffset tells us where in this string to start searching
+         *        (counting from left)
+         * @return offset in string, or kNotFound
+         */
+
+      NS_COM PRInt32 FindCharInSet( const char* aString, PRInt32 aOffset=0 ) const;
+      PRInt32 FindCharInSet( const self_type& aString, PRInt32 aOffset=0 ) const
+        {
+          return FindCharInSet(aString.get(), aOffset);
+        }
+
+#ifdef CharT_is_PRUnichar
+      NS_COM PRInt32 FindCharInSet( const PRUnichar* aString, PRInt32 aOffset=0 ) const;
+#endif
+
+
+        /**
+         * This method searches this string for the last character found in
+         * the given string.
+         *
+         * @param aString contains set of chars to be found
+         * @param aOffset tells us where in this string to start searching
+         *        (counting from left)
+         * @return offset in string, or kNotFound
+         */
+
+      NS_COM PRInt32 RFindCharInSet( const char_type* aString, PRInt32 aOffset=-1 ) const;
+      PRInt32 RFindCharInSet( const self_type& aString, PRInt32 aOffset=-1 ) const
+        {
+          return RFindCharInSet(aString.get(), aOffset);
+        }
+
+
+        /**
+         * Compares a given string to this string. 
+         *
+         * @param   aString is the string to be compared
+         * @param   aIgnoreCase tells us how to treat case
+         * @param   aCount tells us how many chars to compare
+         * @return  -1,0,1
+         */
+
+#ifdef CharT_is_char
+      NS_COM PRInt32 Compare( const char* aString, PRBool aIgnoreCase=PR_FALSE, PRInt32 aCount=-1 ) const;
+#endif
+
+
+        /**
+         * Equality check between given string and this string.
+         *
+         * @param   aString is the string to check
+         * @param   aIgnoreCase tells us how to treat case
+         * @param   aCount tells us how many chars to compare
+         * @return  boolean
+         */
+#ifdef CharT_is_char
+      PRBool EqualsIgnoreCase( const char* aString, PRInt32 aCount=-1 ) const {
+        return Compare(aString, PR_TRUE, aCount) == 0;
+      }
+#else
+      NS_COM PRBool EqualsIgnoreCase( const char* aString, PRInt32 aCount=-1 ) const;
+
+
+        /**
+         * Copies data from internal buffer onto given char* buffer
+         *
+         * NOTE: This only copies as many chars as will fit in given buffer (clips)
+         * @param aBuf is the buffer where data is stored
+         * @param aBuflength is the max # of chars to move to buffer
+         * @param aOffset is the offset to copy from
+         * @return ptr to given buffer
+         */
+
+      NS_COM char* ToCString( char* aBuf, PRUint32 aBufLength, PRUint32 aOffset=0 ) const;
+
+#endif // !CharT_is_PRUnichar
+
+        /**
+         * Perform string to float conversion.
+         *
+         * @param   aErrorCode will contain error if one occurs
+         * @return  float rep of string value
+         */
+      NS_COM float ToFloat( PRInt32* aErrorCode ) const;
+
+
+        /**
+         * Perform string to int conversion.
+         * @param   aErrorCode will contain error if one occurs
+         * @param   aRadix tells us which radix to assume; kAutoDetect tells us to determine the radix for you.
+         * @return  int rep of string value, and possible (out) error code
+         */
+      NS_COM PRInt32 ToInteger( PRInt32* aErrorCode, PRUint32 aRadix=kRadix10 ) const;
+      
+
+        /**
+         * |Left|, |Mid|, and |Right| are annoying signatures that seem better almost
+         * any _other_ way than they are now.  Consider these alternatives
+         * 
+         * aWritable = aReadable.Left(17);   // ...a member function that returns a |Substring|
+         * aWritable = Left(aReadable, 17);  // ...a global function that returns a |Substring|
+         * Left(aReadable, 17, aWritable);   // ...a global function that does the assignment
+         * 
+         * as opposed to the current signature
+         * 
+         * aReadable.Left(aWritable, 17);    // ...a member function that does the assignment
+         * 
+         * or maybe just stamping them out in favor of |Substring|, they are just duplicate functionality
+         *         
+         * aWritable = Substring(aReadable, 0, 17);
+         */
+
+      NS_COM size_type Mid( self_type& aResult, PRUint32 aStartPos, PRUint32 aCount ) const;
+
+      size_type Left( self_type& aResult, size_type aCount ) const
+        {
+          return Mid(aResult, 0, aCount);
+        }
+
+      size_type Right( self_type& aResult, size_type aCount ) const
+        {
+          aCount = NS_MIN(mLength, aCount);
+          return Mid(aResult, mLength - aCount, aCount);
+        }
+
+
+        /**
+         * Set a char inside this string at given index
+         *
+         * @param aChar is the char you want to write into this string
+         * @param anIndex is the ofs where you want to write the given char
+         * @return TRUE if successful
+         */
+
+      NS_COM PRBool SetCharAt( PRUnichar aChar, PRUint32 aIndex );
+
+
+        /**
+         *  These methods are used to remove all occurances of the
+         *  characters found in aSet from this string.
+         *  
+         *  @param  aSet -- characters to be cut from this
+         */
+      NS_COM void StripChars( const char* aSet );
+
+
+        /**
+         *  This method is used to remove all occurances of aChar from this
+         * string.
+         *  
+         *  @param  aChar -- char to be stripped
+         *  @param  aOffset -- where in this string to start stripping chars
+         */
+         
+      NS_COM void StripChar( char_type aChar, PRInt32 aOffset=0 );
+
+
+        /**
+         *  This method strips whitespace throughout the string.
+         */
+      NS_COM void StripWhitespace();
+
+
+        /**
+         *  swaps occurence of 1 string for another
+         */
+
+      NS_COM void ReplaceChar( char_type aOldChar, char_type aNewChar );
+      NS_COM void ReplaceChar( const char* aSet, char_type aNewChar );
+      NS_COM void ReplaceSubstring( const self_type& aTarget, const self_type& aNewValue);
+      NS_COM void ReplaceSubstring( const char_type* aTarget, const char_type* aNewValue);
+
+
+        /**
+         *  This method trims characters found in aTrimSet from
+         *  either end of the underlying string.
+         *  
+         *  @param   aSet -- contains chars to be trimmed from both ends
+         *  @param   aEliminateLeading
+         *  @param   aEliminateTrailing
+         *  @param   aIgnoreQuotes -- if true, causes surrounding quotes to be ignored
+         *  @return  this
+         */
+      NS_COM void Trim( const char* aSet, PRBool aEliminateLeading=PR_TRUE, PRBool aEliminateTrailing=PR_TRUE, PRBool aIgnoreQuotes=PR_FALSE );
+
+        /**
+         *  This method strips whitespace from string.
+         *  You can control whether whitespace is yanked from start and end of
+         *  string as well.
+         *  
+         *  @param   aEliminateLeading controls stripping of leading ws
+         *  @param   aEliminateTrailing controls stripping of trailing ws
+         */
+      NS_COM void CompressWhitespace( PRBool aEliminateLeading=PR_TRUE, PRBool aEliminateTrailing=PR_TRUE );
+
+
+        /**
+         * assign/append/insert with _LOSSY_ conversion
+         */
+
+      NS_COM void AssignWithConversion( const nsTAString_IncompatibleCharT& aString );
+      NS_COM void AssignWithConversion( const incompatible_char_type* aData, PRInt32 aLength=-1 );
+
+      NS_COM void AppendWithConversion( const nsTAString_IncompatibleCharT& aString );
+      NS_COM void AppendWithConversion( const incompatible_char_type* aData, PRInt32 aLength=-1 );
+
+        /**
+         * Append the given integer to this string 
+         */
+      NS_COM void AppendInt( PRInt32 aInteger, PRInt32 aRadix=kRadix10 ); //radix=8,10 or 16
+
+        /**
+         * Append the given unsigned integer to this string
+         */
+      inline void AppendInt( PRUint32 aInteger, PRInt32 aRadix = kRadix10 )
+        {
+          AppendInt(PRInt32(aInteger), aRadix);
+        }
+
+        /**
+         * Append the given 64-bit integer to this string.
+         * @param aInteger The integer to append
+         * @param aRadix   The radix to use; can be 8, 10 or 16.
+         */
+      NS_COM void AppendInt( PRInt64 aInteger, PRInt32 aRadix=kRadix10 );
+
+        /**
+         * Append the given float to this string 
+         */
+
+      NS_COM void AppendFloat( double aFloat );
+
+#endif // !MOZ_STRING_WITH_OBSOLETE_API
+
+
+    protected:
+
+      explicit
+      nsTString_CharT( PRUint32 flags )
+        : substring_type(flags) {}
+
+        // allow subclasses to initialize fields directly
+      nsTString_CharT( char_type* data, size_type length, PRUint32 flags )
+        : substring_type(data, length, flags) {}
+  };
+
+
+class nsTFixedString_CharT : public nsTString_CharT
+  {
+    public:
+
+      typedef nsTFixedString_CharT    self_type;
+      typedef nsTFixedString_CharT    fixed_string_type;
+
+    public:
+
+        /**
+         * @param data
+         *        fixed-size buffer to be used by the string (the contents of
+         *        this buffer may be modified by the string)
+         * @param storageSize
+         *        the size of the fixed buffer
+         * @param length (optional)
+         *        the length of the string already contained in the buffer
+         */
+
+      nsTFixedString_CharT( char_type* data, size_type storageSize )
+        : string_type(data, char_traits::length(data), F_TERMINATED | F_FIXED | F_CLASS_FIXED)
+        , mFixedCapacity(storageSize - 1)
+        , mFixedBuf(data)
+        {}
+
+      nsTFixedString_CharT( char_type* data, size_type storageSize, size_type length )
+        : string_type(data, length, F_TERMINATED | F_FIXED | F_CLASS_FIXED)
+        , mFixedCapacity(storageSize - 1)
+        , mFixedBuf(data)
+        {
+          // null-terminate
+          mFixedBuf[length] = char_type(0);
+        }
+
+        // |operator=| does not inherit, so we must define our own
+      self_type& operator=( char_type c )                                                       { Assign(c);        return *this; }
+      self_type& operator=( const char_type* data )                                             { Assign(data);     return *this; }
+      self_type& operator=( const substring_type& str )                                         { Assign(str);      return *this; }
+      self_type& operator=( const substring_tuple_type& tuple )                                 { Assign(tuple);    return *this; }
+      self_type& operator=( const abstract_string_type& readable )                              { Assign(readable); return *this; }
+
+    protected:
+
+      friend class nsTSubstring_CharT;
+
+      size_type  mFixedCapacity;
+      char_type *mFixedBuf;
+  };
+
+
+  /**
+   * nsTAutoString_CharT
+   *
+   * Subclass of nsTString_CharT that adds support for stack-based string
+   * allocation.  Do not allocate this class on the heap! ;-)
+   */
+class nsTAutoString_CharT : public nsTFixedString_CharT
+  {
+    public:
+
+      typedef nsTAutoString_CharT    self_type;
+
+    public:
+
+        /**
+         * constructors
+         */
+
+      nsTAutoString_CharT()
+        : fixed_string_type(mStorage, kDefaultStorageSize, 0)
+        {}
+
+      explicit
+      nsTAutoString_CharT( char_type c )
+        : fixed_string_type(mStorage, kDefaultStorageSize, 0)
+        {
+          Assign(c);
+        }
+
+      explicit
+      nsTAutoString_CharT( const char_type* data, size_type length = size_type(-1) )
+        : fixed_string_type(mStorage, kDefaultStorageSize, 0)
+        {
+          Assign(data, length);
+        }
+
+      nsTAutoString_CharT( const self_type& str )
+        : fixed_string_type(mStorage, kDefaultStorageSize, 0)
+        {
+          Assign(str);
+        }
+
+      explicit
+      nsTAutoString_CharT( const substring_type& str )
+        : fixed_string_type(mStorage, kDefaultStorageSize, 0)
+        {
+          Assign(str);
+        }
+
+      nsTAutoString_CharT( const substring_tuple_type& tuple )
+        : fixed_string_type(mStorage, kDefaultStorageSize, 0)
+        {
+          Assign(tuple);
+        }
+
+      explicit
+      nsTAutoString_CharT( const abstract_string_type& readable )
+        : fixed_string_type(mStorage, kDefaultStorageSize, 0)
+        {
+          Assign(readable);
+        }
+
+        // |operator=| does not inherit, so we must define our own
+      self_type& operator=( char_type c )                                                       { Assign(c);        return *this; }
+      self_type& operator=( const char_type* data )                                             { Assign(data);     return *this; }
+      self_type& operator=( const self_type& str )                                              { Assign(str);      return *this; }
+      self_type& operator=( const substring_type& str )                                         { Assign(str);      return *this; }
+      self_type& operator=( const substring_tuple_type& tuple )                                 { Assign(tuple);    return *this; }
+      self_type& operator=( const abstract_string_type& readable )                              { Assign(readable); return *this; }
+
+      enum { kDefaultStorageSize = 64 };
+
+    private:
+
+      char_type mStorage[kDefaultStorageSize];
+  };
+
+
+  /**
+   * nsTXPIDLString extends nsTString such that:
+   *
+   *   (1) mData can be null
+   *   (2) objects of this type can be automatically cast to |const CharT*|
+   *   (3) getter_Copies method is supported to adopt data
+   */
+class nsTXPIDLString_CharT : public nsTString_CharT
+  {
+    public:
+
+      typedef nsTXPIDLString_CharT    self_type;
+
+    public:
+
+      nsTXPIDLString_CharT()
+        : string_type(NS_CONST_CAST(char_type*, char_traits::sEmptyBuffer), 0, F_TERMINATED | F_VOIDED) {}
+
+        // copy-constructor required to avoid default
+      nsTXPIDLString_CharT( const self_type& str )
+        : string_type(NS_CONST_CAST(char_type*, char_traits::sEmptyBuffer), 0, F_TERMINATED | F_VOIDED)
+        {
+          Assign(str);
+        }
+
+        // return nsnull if we are voided
+      const char_type* get() const
+        {
+          return (mFlags & F_VOIDED) ? nsnull : mData;
+        }
+
+        // this case operator is the reason why this class cannot just be a
+        // typedef for nsTString
+      operator const char_type*() const
+        {
+          return get();
+        }
+
+        // need this to diambiguous operator[int]
+      char_type operator[]( PRInt32 i ) const
+        {
+          return CharAt(index_type(i));
+        }
+
+        // |operator=| does not inherit, so we must define our own
+      self_type& operator=( char_type c )                                                       { Assign(c);        return *this; }
+      self_type& operator=( const char_type* data )                                             { Assign(data);     return *this; }
+      self_type& operator=( const self_type& str )                                              { Assign(str);      return *this; }
+      self_type& operator=( const substring_type& str )                                         { Assign(str);      return *this; }
+      self_type& operator=( const substring_tuple_type& tuple )                                 { Assign(tuple);    return *this; }
+      self_type& operator=( const abstract_string_type& readable )                              { Assign(readable); return *this; }
+  };
+
+
+  /**
+   * getter_Copies support for use with raw string out params:
+   *
+   *    NS_IMETHOD GetBlah(char**);
+   *    
+   *    void some_function()
+   *    {
+   *      nsXPIDLCString blah;
+   *      GetBlah(getter_Copies(blah));
+   *      // ...
+   *    }
+   */
+class nsTGetterCopies_CharT
+  {
+    public:
+      typedef CharT char_type;
+
+      nsTGetterCopies_CharT(nsTXPIDLString_CharT& str)
+        : mString(str), mData(nsnull) {}
+
+      ~nsTGetterCopies_CharT()
+        {
+          mString.Adopt(mData); // OK if mData is null
+        }
+
+      operator char_type**()
+        {
+          return &mData;
+        }
+
+    private:
+      nsTXPIDLString_CharT& mString;
+      char_type*            mData;
+  };
+
+inline
+nsTGetterCopies_CharT
+getter_Copies( nsTXPIDLString_CharT& aString )
+  {
+    return nsTGetterCopies_CharT(aString);
+  }
+
+
+  /**
+   * nsTAdoptingString extends nsTXPIDLString such that:
+   *
+   * (1) Adopt given string on construction or assignment, i.e. take
+   * the value of what's given, and make what's given forget its
+   * value. Note that this class violates constness in a few
+   * places. Be careful!
+   */
+class nsTAdoptingString_CharT : public nsTXPIDLString_CharT
+  {
+    public:
+
+      typedef nsTAdoptingString_CharT    self_type;
+
+    public:
+
+      explicit nsTAdoptingString_CharT() {}
+      explicit nsTAdoptingString_CharT(char_type* str, size_type length = size_type(-1))
+        {
+          Adopt(str, length);
+        }
+
+        // copy-constructor required to adopt on copy. Note that this
+        // will violate the constness of |str| in the operator=()
+        // call. |str| will be truncated as a side-effect of this
+        // constructor.
+      nsTAdoptingString_CharT( const self_type& str )
+#ifdef VBOX /* bird: shut up annoying warnings */
+          : nsTXPIDLString_CharT()
+#endif
+        {
+          *this = str;
+        }
+
+        // |operator=| does not inherit, so we must define our own
+      self_type& operator=( const substring_type& str )                                         { Assign(str);      return *this; }
+      self_type& operator=( const substring_tuple_type& tuple )                                 { Assign(tuple);    return *this; }
+      self_type& operator=( const abstract_string_type& readable )                              { Assign(readable); return *this; }
+
+        // Adopt(), if possible, when assigning to a self_type&. Note
+        // that this violates the constness of str, str is always
+        // truncated when this operator is called.
+      NS_COM self_type& operator=( const self_type& str );
+
+    private:
+        // NOT TO BE IMPLEMENTED.
+      self_type& operator=( const char_type* data );
+      self_type& operator=( char_type* data );
+  };
+
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsTSubstring.h b/src/libs/xpcom18a4/xpcom/string/public/nsTSubstring.h
new file mode 100644
index 00000000..aaaf5a64
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsTSubstring.h
@@ -0,0 +1,575 @@
+/* -*- 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 ***** */
+
+
+  /**
+   * nsTSubstring
+   *
+   * The base string type.  This type is not instantiated directly.  A sub-
+   * class is instantiated instead.  For example, see nsTString.
+   *
+   * This type works like nsTAString except that it does not have the ABI
+   * requirements of that interface.  Like nsTAString, nsTSubstring
+   * represents a single contiguous array of characters that may or may not
+   * be null-terminated.
+   *
+   * Many of the accessors on nsTSubstring are inlined as an optimization.
+   *
+   * This class is also known as "nsASingleFragmentC?String".
+   */
+class nsTSubstring_CharT : public nsTAString_CharT
+  {
+    public:
+
+      typedef nsTSubstring_CharT    self_type;
+      typedef nsTString_CharT       string_type;
+
+      typedef char_type*            char_iterator;
+      typedef const char_type*      const_char_iterator;
+
+    public:
+
+        /**
+         * reading iterators
+         */
+
+      const_char_iterator BeginReading() const { return mData; }
+      const_char_iterator EndReading() const { return mData + mLength; }
+
+        /**
+         * deprecated reading iterators
+         */
+
+      const_iterator& BeginReading( const_iterator& iter ) const
+        {
+          iter.mStart = mData;
+          iter.mEnd = mData + mLength;
+          iter.mPosition = iter.mStart;
+          return iter;
+        }
+
+      const_iterator& EndReading( const_iterator& iter ) const
+        {
+          iter.mStart = mData;
+          iter.mEnd = mData + mLength;
+          iter.mPosition = iter.mEnd;
+          return iter;
+        }
+
+      const_char_iterator& BeginReading( const_char_iterator& iter ) const
+        {
+          return iter = mData;
+        }
+
+      const_char_iterator& EndReading( const_char_iterator& iter ) const
+        {
+          return iter = mData + mLength;
+        }
+
+
+        /**
+         * writing iterators
+         */
+      
+      char_iterator BeginWriting() { EnsureMutable(); return mData; }
+      char_iterator EndWriting() { EnsureMutable(); return mData + mLength; }
+
+        /**
+         * deprecated writing iterators
+         */
+      
+      iterator& BeginWriting( iterator& iter )
+        {
+          EnsureMutable();
+          iter.mStart = mData;
+          iter.mEnd = mData + mLength;
+          iter.mPosition = iter.mStart;
+          return iter;
+        }
+
+      iterator& EndWriting( iterator& iter )
+        {
+          EnsureMutable();
+          iter.mStart = mData;
+          iter.mEnd = mData + mLength;
+          iter.mPosition = iter.mEnd;
+          return iter;
+        }
+
+      char_iterator& BeginWriting( char_iterator& iter )
+        {
+          EnsureMutable();
+          return iter = mData;
+        }
+
+      char_iterator& EndWriting( char_iterator& iter )
+        {
+          EnsureMutable();
+          return iter = mData + mLength;
+        }
+
+
+        /**
+         * accessors
+         */
+
+        // returns pointer to string data (not necessarily null-terminated)
+      const char_type *Data() const
+        {
+          return mData;
+        }
+
+      size_type Length() const
+        {
+          return mLength;
+        }
+
+      PRBool IsEmpty() const
+        {
+          return mLength == 0;
+        }
+
+      PRBool IsVoid() const
+        {
+          return mFlags & F_VOIDED;
+        }
+
+      PRBool IsTerminated() const
+        {
+          return mFlags & F_TERMINATED;
+        }
+
+      char_type CharAt( index_type i ) const
+        {
+          NS_ASSERTION(i < mLength, "index exceeds allowable range");
+          return mData[i];
+        }
+
+      char_type operator[]( index_type i ) const
+        {
+          return CharAt(i);
+        }
+
+      char_type First() const
+        {
+          NS_ASSERTION(mLength > 0, "|First()| called on an empty string");
+          return mData[0];
+        }
+
+      inline
+      char_type Last() const
+        {
+          NS_ASSERTION(mLength > 0, "|Last()| called on an empty string");
+          return mData[mLength - 1];
+        }
+
+      NS_COM size_type NS_FASTCALL CountChar( char_type ) const;
+      NS_COM PRInt32 NS_FASTCALL FindChar( char_type, index_type offset = 0 ) const;
+
+
+        /**
+         * equality
+         */
+
+      NS_COM PRBool NS_FASTCALL Equals( const self_type& ) const;
+      NS_COM PRBool NS_FASTCALL Equals( const self_type&, const comparator_type& ) const;
+
+      NS_COM PRBool NS_FASTCALL Equals( const abstract_string_type& readable ) const;
+      NS_COM PRBool NS_FASTCALL Equals( const abstract_string_type& readable, const comparator_type& comp ) const;
+
+      NS_COM PRBool NS_FASTCALL Equals( const char_type* data ) const;
+      NS_COM PRBool NS_FASTCALL Equals( const char_type* data, const comparator_type& comp ) const;
+
+        /**
+         * An efficient comparison with ASCII that can be used even
+         * for wide strings. Call this version when you know the
+         * length of 'data'.
+         */
+      NS_COM PRBool NS_FASTCALL EqualsASCII( const char* data, size_type len ) const;
+        /**
+         * An efficient comparison with ASCII that can be used even
+         * for wide strings. Call this version when 'data' is
+         * null-terminated.
+         */
+      NS_COM PRBool NS_FASTCALL EqualsASCII( const char* data ) const;
+
+    // EqualsLiteral must ONLY be applied to an actual literal string.
+    // Do not attempt to use it with a regular char* pointer, or with a char
+    // array variable.
+    // The template trick to acquire the array length at compile time without
+    // using a macro is due to Corey Kosak, with much thanks.
+#ifdef NS_DISABLE_LITERAL_TEMPLATE
+      inline PRBool EqualsLiteral( const char* str ) const
+        {
+          return EqualsASCII(str);
+        }
+#else
+      template<int N>
+      inline PRBool EqualsLiteral( const char (&str)[N] ) const
+        {
+          return EqualsASCII(str, N-1);
+        }
+      template<int N>
+      inline PRBool EqualsLiteral( char (&str)[N] ) const
+        {
+          const char* s = str;
+          return EqualsASCII(s, N-1);
+        }
+#endif
+
+    // The LowerCaseEquals methods compare the lower case version of
+    // this string to some ASCII/Literal string. The ASCII string is
+    // *not* lowercased for you. If you compare to an ASCII or literal
+    // string that contains an uppercase character, it is guaranteed to
+    // return false. We will throw assertions too.
+      NS_COM PRBool NS_FASTCALL LowerCaseEqualsASCII( const char* data, size_type len ) const;
+      NS_COM PRBool NS_FASTCALL LowerCaseEqualsASCII( const char* data ) const;
+
+    // LowerCaseEqualsLiteral must ONLY be applied to an actual
+    // literal string.  Do not attempt to use it with a regular char*
+    // pointer, or with a char array variable. Use
+    // LowerCaseEqualsASCII for them.
+#ifdef NS_DISABLE_LITERAL_TEMPLATE
+      inline PRBool LowerCaseEqualsLiteral( const char* str ) const
+        {
+          return LowerCaseEqualsASCII(str);
+        }
+#else
+      template<int N>
+      inline PRBool LowerCaseEqualsLiteral( const char (&str)[N] ) const
+        {
+          return LowerCaseEqualsASCII(str, N-1);
+        }
+      template<int N>
+      inline PRBool LowerCaseEqualsLiteral( char (&str)[N] ) const
+        {
+          const char* s = str;
+          return LowerCaseEqualsASCII(s, N-1);
+        }
+#endif
+
+        /**
+         * assignment
+         */
+
+      void Assign( char_type c )                                                                { Assign(&c, 1); }
+      NS_COM void NS_FASTCALL Assign( const char_type* data, size_type length = size_type(-1) );
+      NS_COM void NS_FASTCALL Assign( const self_type& );
+      NS_COM void NS_FASTCALL Assign( const substring_tuple_type& );
+      NS_COM void NS_FASTCALL Assign( const abstract_string_type& );
+
+      NS_COM void NS_FASTCALL AssignASCII( const char* data, size_type length );
+      NS_COM void NS_FASTCALL AssignASCII( const char* data );
+
+    // AssignLiteral must ONLY be applied to an actual literal string.
+    // Do not attempt to use it with a regular char* pointer, or with a char
+    // array variable. Use AssignASCII for those.
+#ifdef NS_DISABLE_LITERAL_TEMPLATE
+      void AssignLiteral( const char* str )
+                  { AssignASCII(str); }
+#else
+      template<int N>
+      void AssignLiteral( const char (&str)[N] )
+                  { AssignASCII(str, N-1); }
+      template<int N>
+      void AssignLiteral( char (&str)[N] )
+                  { AssignASCII(str, N-1); }
+#endif
+
+      self_type& operator=( char_type c )                                                       { Assign(c);        return *this; }
+      self_type& operator=( const char_type* data )                                             { Assign(data);     return *this; }
+      self_type& operator=( const self_type& str )                                              { Assign(str);      return *this; }
+      self_type& operator=( const substring_tuple_type& tuple )                                 { Assign(tuple);    return *this; }
+      self_type& operator=( const abstract_string_type& readable )                              { Assign(readable); return *this; }
+
+      NS_COM void NS_FASTCALL Adopt( char_type* data, size_type length = size_type(-1) );
+
+
+        /**
+         * buffer manipulation
+         */
+
+             void Replace( index_type cutStart, size_type cutLength, char_type c )               { Replace(cutStart, cutLength, &c, 1); }
+      NS_COM void NS_FASTCALL Replace( index_type cutStart, size_type cutLength, const char_type* data, size_type length = size_type(-1) );
+             void Replace( index_type cutStart, size_type cutLength, const self_type& str )      { Replace(cutStart, cutLength, str.Data(), str.Length()); }
+      NS_COM void NS_FASTCALL Replace( index_type cutStart, size_type cutLength, const substring_tuple_type& tuple );
+      NS_COM void NS_FASTCALL Replace( index_type cutStart, size_type cutLength, const abstract_string_type& readable );
+
+      NS_COM void NS_FASTCALL ReplaceASCII( index_type cutStart, size_type cutLength, const char* data, size_type length = size_type(-1) );
+
+      void Append( char_type c )                                                                 { Replace(mLength, 0, c); }
+      void Append( const char_type* data, size_type length = size_type(-1) )                     { Replace(mLength, 0, data, length); }
+      void Append( const self_type& str )                                                        { Replace(mLength, 0, str); }
+      void Append( const substring_tuple_type& tuple )                                           { Replace(mLength, 0, tuple); }
+      void Append( const abstract_string_type& readable )                                        { Replace(mLength, 0, readable); }
+
+      void AppendASCII( const char* data, size_type length = size_type(-1) )                     { ReplaceASCII(mLength, 0, data, length); }
+
+    // AppendLiteral must ONLY be applied to an actual literal string.
+    // Do not attempt to use it with a regular char* pointer, or with a char
+    // array variable. Use AppendASCII for those.
+#ifdef NS_DISABLE_LITERAL_TEMPLATE
+      void AppendLiteral( const char* str )
+                  { AppendASCII(str); }
+#else
+      template<int N>
+      void AppendLiteral( const char (&str)[N] )
+                  { AppendASCII(str, N-1); }
+      template<int N>
+      void AppendLiteral( char (&str)[N] )
+                  { AppendASCII(str, N-1); }
+#endif
+
+      self_type& operator+=( char_type c )                                                       { Append(c);        return *this; }
+      self_type& operator+=( const char_type* data )                                             { Append(data);     return *this; }
+      self_type& operator+=( const self_type& str )                                              { Append(str);      return *this; }
+      self_type& operator+=( const substring_tuple_type& tuple )                                 { Append(tuple);    return *this; }
+      self_type& operator+=( const abstract_string_type& readable )                              { Append(readable); return *this; }
+
+      void Insert( char_type c, index_type pos )                                                 { Replace(pos, 0, c); }
+      void Insert( const char_type* data, index_type pos, size_type length = size_type(-1) )     { Replace(pos, 0, data, length); }
+      void Insert( const self_type& str, index_type pos )                                        { Replace(pos, 0, str); }
+      void Insert( const substring_tuple_type& tuple, index_type pos )                           { Replace(pos, 0, tuple); }
+      void Insert( const abstract_string_type& readable, index_type pos )                        { Replace(pos, 0, readable); }
+
+      void Cut( index_type cutStart, size_type cutLength )                                       { Replace(cutStart, cutLength, char_traits::sEmptyBuffer, 0); }
+
+
+        /**
+         * buffer sizing
+         */
+
+      NS_COM void NS_FASTCALL SetCapacity( size_type capacity );
+
+      NS_COM void NS_FASTCALL SetLength( size_type );
+
+      void Truncate( size_type newLength = 0 )
+        {
+          NS_ASSERTION(newLength <= mLength, "Truncate cannot make string longer");
+          SetLength(newLength);
+        }
+
+
+        /**
+         * string data is never null, but can be marked void.  if true, the
+         * string will be truncated.  @see nsTSubstring::IsVoid
+         */
+
+      NS_COM void NS_FASTCALL SetIsVoid( PRBool );
+
+
+    public:
+
+        /**
+         * this is public to support automatic conversion of tuple to string
+         * base type, which helps avoid converting to nsTAString.
+         */
+      nsTSubstring_CharT(const substring_tuple_type& tuple)
+        : abstract_string_type(nsnull, 0, F_NONE)
+        {
+          Assign(tuple);
+        }
+
+    protected:
+
+      friend class nsTObsoleteAStringThunk_CharT;
+      friend class nsTAString_CharT;
+      friend class nsTSubstringTuple_CharT;
+
+      // XXX GCC 3.4 needs this :-(
+      friend class nsTPromiseFlatString_CharT;
+
+        // default initialization 
+      nsTSubstring_CharT()
+        : abstract_string_type(
+              NS_CONST_CAST(char_type*, char_traits::sEmptyBuffer), 0, F_TERMINATED) {}
+
+        // allow subclasses to initialize fields directly
+      nsTSubstring_CharT( char_type *data, size_type length, PRUint32 flags )
+        : abstract_string_type(data, length, flags) {}
+
+        // version of constructor that leaves mData and mLength uninitialized
+      explicit
+      nsTSubstring_CharT( PRUint32 flags )
+        : abstract_string_type(flags) {}
+
+        // copy-constructor, constructs as dependent on given object
+        // (NOTE: this is for internal use only)
+      nsTSubstring_CharT( const self_type& str )
+        : abstract_string_type(
+              str.mData, str.mLength, str.mFlags & (F_TERMINATED | F_VOIDED)) {}
+
+        /**
+         * this function releases mData and does not change the value of
+         * any of its member variables.  inotherwords, this function acts
+         * like a destructor.
+         */
+      void NS_FASTCALL Finalize();
+
+        /**
+         * this function prepares mData to be mutated.
+         *
+         * @param capacity     specifies the required capacity of mData  
+         * @param old_data     returns null or the old value of mData
+         * @param old_flags    returns 0 or the old value of mFlags
+         *
+         * if mData is already mutable and of sufficient capacity, then this
+         * function will return immediately.  otherwise, it will either resize
+         * mData or allocate a new shared buffer.  if it needs to allocate a
+         * new buffer, then it will return the old buffer and the corresponding
+         * flags.  this allows the caller to decide when to free the old data.
+         *
+         * XXX we should expose a way for subclasses to free old_data.
+         */
+      PRBool NS_FASTCALL MutatePrep( size_type capacity, char_type** old_data, PRUint32* old_flags );
+
+        /**
+         * this function prepares a section of mData to be modified.  if
+         * necessary, this function will reallocate mData and possibly move
+         * existing data to open up the specified section.
+         *
+         * @param cutStart     specifies the starting offset of the section
+         * @param cutLength    specifies the length of the section to be replaced
+         * @param newLength    specifies the length of the new section
+         *
+         * for example, suppose mData contains the string "abcdef" then
+         * 
+         *   ReplacePrep(2, 3, 4);
+         *
+         * would cause mData to look like "ab____f" where the characters
+         * indicated by '_' have an unspecified value and can be freely
+         * modified.  this function will null-terminate mData upon return.
+         */
+      void NS_FASTCALL ReplacePrep( index_type cutStart, size_type cutLength, size_type newLength );
+
+        /**
+         * returns the number of writable storage units starting at mData.
+         * the value does not include space for the null-terminator character.
+         *
+         * NOTE: this function returns size_type(-1) if mData is immutable.
+         */
+      size_type NS_FASTCALL Capacity() const;
+
+        /**
+         * this helper function can be called prior to directly manipulating
+         * the contents of mData.  see, for example, BeginWriting.
+         */
+      NS_COM void NS_FASTCALL EnsureMutable();
+
+        /**
+         * returns true if this string overlaps with the given string fragment.
+         */
+      PRBool IsDependentOn( const char_type *start, const char_type *end ) const
+        {
+          /**
+           * if it _isn't_ the case that one fragment starts after the other ends,
+           * or ends before the other starts, then, they conflict:
+           * 
+           *   !(f2.begin >= f1.end || f2.end <= f1.begin)
+           * 
+           * Simplified, that gives us:
+           */
+          return ( start < (mData + mLength) && end > mData );
+        }
+
+        /**
+         * this helper function stores the specified dataFlags in mFlags
+         */
+      void SetDataFlags(PRUint32 dataFlags)
+        {
+          NS_ASSERTION((dataFlags & 0xFFFF0000) == 0, "bad flags");
+          mFlags = dataFlags | (mFlags & 0xFFFF0000);
+        }
+
+    public:
+
+      // mFlags is a bitwise combination of the following flags.  the meaning
+      // and interpretation of these flags is an implementation detail.
+      // 
+      // NOTE: these flags are declared public _only_ for convenience inside
+      // the string implementation.
+      
+      enum
+        {
+          F_NONE         = 0,       // no flags
+
+          // data flags are in the lower 16-bits
+          F_TERMINATED   = 1 << 0,  // IsTerminated returns true
+          F_VOIDED       = 1 << 1,  // IsVoid returns true
+          F_SHARED       = 1 << 2,  // mData points to a heap-allocated, shared buffer
+          F_OWNED        = 1 << 3,  // mData points to a heap-allocated, raw buffer
+          F_FIXED        = 1 << 4,  // mData points to a fixed-size writable, dependent buffer
+
+          // class flags are in the upper 16-bits
+          F_CLASS_FIXED  = 1 << 16   // indicates that |this| is of type nsTFixedString
+        };
+
+      //
+      // Some terminology:
+      //
+      //   "dependent buffer"    A dependent buffer is one that the string class
+      //                         does not own.  The string class relies on some
+      //                         external code to ensure the lifetime of the
+      //                         dependent buffer.
+      //
+      //   "shared buffer"       A shared buffer is one that the string class
+      //                         allocates.  When it allocates a shared string
+      //                         buffer, it allocates some additional space at
+      //                         the beginning of the buffer for additional 
+      //                         fields, including a reference count and a 
+      //                         buffer length.  See nsStringHeader.
+      //                         
+      //   "adopted buffer"      An adopted buffer is a raw string buffer
+      //                         allocated on the heap (using nsMemory::Alloc)
+      //                         of which the string class subsumes ownership.
+      //
+      // Some comments about the string flags:
+      //
+      //   F_SHARED, F_OWNED, and F_FIXED are all mutually exlusive.  They
+      //   indicate the allocation type of mData.  If none of these flags
+      //   are set, then the string buffer is dependent.
+      //
+      //   F_SHARED, F_OWNED, or F_FIXED imply F_TERMINATED.  This is because
+      //   the string classes always allocate null-terminated buffers, and
+      //   non-terminated substrings are always dependent.
+      //
+      //   F_VOIDED implies F_TERMINATED, and moreover it implies that mData
+      //   points to char_traits::sEmptyBuffer.  Therefore, F_VOIDED is
+      //   mutually exclusive with F_SHARED, F_OWNED, and F_FIXED.
+      //
+  };
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);
+  }
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsUTF8Utils.h b/src/libs/xpcom18a4/xpcom/string/public/nsUTF8Utils.h
new file mode 100644
index 00000000..c91079c2
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsUTF8Utils.h
@@ -0,0 +1,462 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2001
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Peter Annema <jaggernaut@netscape.com> (original author)
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of 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 ***** */
+
+#ifndef nsUTF8Utils_h_
+#define nsUTF8Utils_h_
+
+class UTF8traits
+  {
+    public:
+      static PRBool isASCII(char c) { return (c & 0x80) == 0x00; }
+      static PRBool isInSeq(char c) { return (c & 0xC0) == 0x80; }
+      static PRBool is2byte(char c) { return (c & 0xE0) == 0xC0; }
+      static PRBool is3byte(char c) { return (c & 0xF0) == 0xE0; }
+      static PRBool is4byte(char c) { return (c & 0xF8) == 0xF0; }
+      static PRBool is5byte(char c) { return (c & 0xFC) == 0xF8; }
+      static PRBool is6byte(char c) { return (c & 0xFE) == 0xFC; }
+  };
+
+#define PLANE1_BASE           0x00010000  
+#define UCS2_REPLACEMENT_CHAR 0xfffd     
+
+#ifdef __GNUC__
+#define NS_ALWAYS_INLINE __attribute__((always_inline))
+#else
+#define NS_ALWAYS_INLINE
+#endif
+
+/**
+ * A character sink (see |copy_string| in nsAlgorithm.h) for converting
+ * UTF-8 to UTF-16
+ */
+class ConvertUTF8toUTF16
+  {
+    public:
+      typedef nsACString::char_type value_type;
+      typedef nsAString::char_type  buffer_type;
+
+    ConvertUTF8toUTF16( buffer_type* aBuffer )
+        : mStart(aBuffer), mBuffer(aBuffer), mErrorEncountered(PR_FALSE) {}
+
+    size_t Length() const { return mBuffer - mStart; }
+
+    PRUint32 NS_ALWAYS_INLINE write( const value_type* start, PRUint32 N )
+      {
+        if ( mErrorEncountered )
+          return N;
+
+        // algorithm assumes utf8 units won't
+        // be spread across fragments
+        const value_type* p = start;
+        const value_type* end = start + N;
+        buffer_type* out = mBuffer;
+        for ( ; p != end /* && *p */; )
+          {
+            char c = *p++;
+
+            if ( UTF8traits::isASCII(c) )
+              {
+                *out++ = buffer_type(c);
+                continue;
+              }
+
+            PRUint32 ucs4;
+            PRUint32 minUcs4;
+            PRInt32 state = 0;
+
+            if ( UTF8traits::is2byte(c) )
+              {
+                ucs4 = (PRUint32(c) << 6) & 0x000007C0L;
+                state = 1;
+                minUcs4 = 0x00000080;
+              }
+            else if ( UTF8traits::is3byte(c) )
+              {
+                ucs4 = (PRUint32(c) << 12) & 0x0000F000L;
+                state = 2;
+                minUcs4 = 0x00000800;
+              }
+            else if ( UTF8traits::is4byte(c) )
+              {
+                ucs4 = (PRUint32(c) << 18) & 0x001F0000L;
+                state = 3;
+                minUcs4 = 0x00010000;
+              }
+            else if ( UTF8traits::is5byte(c) )
+              {
+                ucs4 = (PRUint32(c) << 24) & 0x03000000L;
+                state = 4;
+                minUcs4 = 0x00200000;
+              }
+            else if ( UTF8traits::is6byte(c) )
+              {
+                ucs4 = (PRUint32(c) << 30) & 0x40000000L;
+                state = 5;
+                minUcs4 = 0x04000000;
+              }
+            else
+              {
+                NS_ERROR("Not a UTF-8 string. This code should only be used for converting from known UTF-8 strings.");
+                mErrorEncountered = PR_TRUE;
+                mBuffer = out;
+                return N;
+              }
+
+            while ( state-- )
+              {
+                c = *p++;
+
+                if ( UTF8traits::isInSeq(c) )
+                  {
+                    PRInt32 shift = state * 6;
+                    ucs4 |= (PRUint32(c) & 0x3F) << shift;
+                  }
+                else
+                  {
+                    NS_ERROR("not a UTF8 string");
+                    mErrorEncountered = PR_TRUE;
+                    mBuffer = out;
+                    return N;
+                  }
+              }
+
+            if ( ucs4 < minUcs4 )
+              {
+                // Overlong sequence
+                *out++ = UCS2_REPLACEMENT_CHAR;
+              }
+            else if ( ucs4 <= 0xD7FF )
+              {
+                *out++ = ucs4;
+              }
+            else if ( /* ucs4 >= 0xD800 && */ ucs4 <= 0xDFFF )
+              {
+                // Surrogates
+                *out++ = UCS2_REPLACEMENT_CHAR;
+              }
+            else if ( ucs4 == 0xFFFE || ucs4 == 0xFFFF )
+              {
+                // Prohibited characters
+                *out++ = UCS2_REPLACEMENT_CHAR;
+              }
+            else if ( ucs4 >= PLANE1_BASE )
+              {
+                if ( ucs4 >= 0x00110000 )
+                  *out++ = UCS2_REPLACEMENT_CHAR;
+                else {
+                  // surrogate, see unicode specification 3.7 for following math.
+                  ucs4 -= PLANE1_BASE;
+                  *out++ = (PRUnichar)(ucs4 >> 10) | 0xd800u;
+                  *out++ = (PRUnichar)(ucs4 & 0x3ff) | 0xdc00u;
+                }
+              }
+            else
+              {
+                *out++ = ucs4;
+              }
+          }
+        mBuffer = out;
+        return p - start;
+      }
+
+    void write_terminator()
+      {
+        *mBuffer = buffer_type(0);
+      }
+
+    private:
+      buffer_type* const mStart;
+      buffer_type* mBuffer;
+      PRBool mErrorEncountered;
+  };
+
+/**
+ * A character sink (see |copy_string| in nsAlgorithm.h) for computing
+ * the length of the UTF-16 string equivalent to a UTF-8 string.
+ */
+class CalculateUTF8Length
+  {
+    public:
+      typedef nsACString::char_type value_type;
+
+    CalculateUTF8Length() : mLength(0), mErrorEncountered(PR_FALSE) { }
+
+    size_t Length() const { return mLength; }
+
+    PRUint32 NS_ALWAYS_INLINE write( const value_type* start, PRUint32 N )
+      {
+          // ignore any further requests
+        if ( mErrorEncountered )
+            return N;
+
+        // algorithm assumes utf8 units won't
+        // be spread across fragments
+        const value_type* p = start;
+        const value_type* end = start + N;
+        for ( ; p < end /* && *p */; ++mLength )
+          {
+            if ( UTF8traits::isASCII(*p) )
+                p += 1;
+            else if ( UTF8traits::is2byte(*p) )
+                p += 2;
+            else if ( UTF8traits::is3byte(*p) )
+                p += 3;
+            else if ( UTF8traits::is4byte(*p) ) {
+                p += 4;
+                // Because a UTF-8 sequence of 4 bytes represents a codepoint
+                // greater than 0xFFFF, it will become a surrogate pair in the
+                // UTF-16 string, so add 1 more to mLength.
+                // This doesn't happen with is5byte and is6byte because they
+                // are illegal UTF-8 sequences (greater than 0x10FFFF) so get
+                // converted to a single replacement character.
+                //
+                // XXX: if the 4-byte sequence is an illegal non-shortest form,
+                //      it also gets converted to a replacement character, so
+                //      mLength will be off by one in this case.
+                ++mLength;
+            }
+            else if ( UTF8traits::is5byte(*p) )
+                p += 5;
+            else if ( UTF8traits::is6byte(*p) )
+                p += 6;
+            else
+              {
+                break;
+              }
+          }
+        if ( p != end )
+          {
+            NS_ERROR("Not a UTF-8 string. This code should only be used for converting from known UTF-8 strings.");
+            mErrorEncountered = PR_TRUE;
+            mLength = 0;
+            return N;
+          }
+        return p - start;
+      }
+
+    private:
+      size_t mLength;
+      PRBool mErrorEncountered;
+  };
+
+/**
+ * A character sink (see |copy_string| in nsAlgorithm.h) for converting
+ * UTF-16 to UTF-8.
+ */
+class ConvertUTF16toUTF8
+  {
+    public:
+      typedef nsAString::char_type  value_type;
+      typedef nsACString::char_type buffer_type;
+
+    // The error handling here is more lenient than that in
+    // |ConvertUTF8toUTF16|, but it's that way for backwards
+    // compatibility.
+
+    ConvertUTF16toUTF8( buffer_type* aBuffer )
+        : mStart(aBuffer), mBuffer(aBuffer) {}
+
+    size_t Size() const { return mBuffer - mStart; }
+
+    PRUint32 NS_ALWAYS_INLINE write( const value_type* start, PRUint32 N )
+      {
+        buffer_type *out = mBuffer; // gcc isn't smart enough to do this!
+
+        for (const value_type *p = start, *end = start + N; p < end; ++p )
+          {
+            value_type c = *p;
+            if (! (c & 0xFF80)) // U+0000 - U+007F
+              {
+                *out++ = (char)c;
+              }
+            else if (! (c & 0xF800)) // U+0100 - U+07FF
+              {
+                *out++ = 0xC0 | (char)(c >> 6);
+                *out++ = 0x80 | (char)(0x003F & c);
+              }
+            else if (0xD800 != (0xF800 & c)) // U+0800 - U+D7FF,U+E000 - U+FFFF
+              {
+                *out++ = 0xE0 | (char)(c >> 12);
+                *out++ = 0x80 | (char)(0x003F & (c >> 6));
+                *out++ = 0x80 | (char)(0x003F & c );
+              }
+            else if (0xD800 == (0xFC00 & c)) // U+D800 - U+DBFF
+              {
+                // D800- DBFF - High Surrogate
+                // N = (H- D800) *400 + 10000 + ...
+                PRUint32 ucs4 = 0x10000 + ((0x03FF & c) << 10);
+
+                ++p;
+                if (p == end)
+                  {
+                    NS_ERROR("Surrogate pair split between fragments");
+                    mBuffer = out;
+                    return N;
+                  }
+                c = *p;
+
+                if (0xDC00 == (0xFC00 & c))
+                  {
+                    // DC00- DFFF - Low Surrogate
+                    // N += ( L - DC00 )
+                    ucs4 |= (0x03FF & c);
+
+                    // 0001 0000-001F FFFF
+                    *out++ = 0xF0 | (char)(ucs4 >> 18);
+                    *out++ = 0x80 | (char)(0x003F & (ucs4 >> 12));
+                    *out++ = 0x80 | (char)(0x003F & (ucs4 >> 6));
+                    *out++ = 0x80 | (char)(0x003F & ucs4);
+                  }
+                else
+                  {
+                    NS_ERROR("got a High Surrogate but no low surrogate");
+                    // output nothing.
+                  }
+              }
+            else // U+DC00 - U+DFFF
+              {
+                // DC00- DFFF - Low Surrogate
+                NS_ERROR("got a low Surrogate but no high surrogate");
+                // output nothing.
+              }
+          }
+
+        mBuffer = out;
+        return N;
+      }
+
+    void write_terminator()
+      {
+        *mBuffer = buffer_type(0);
+      }
+
+    private:
+      buffer_type* const mStart;
+      buffer_type* mBuffer;
+  };
+
+/**
+ * A character sink (see |copy_string| in nsAlgorithm.h) for computing
+ * the number of bytes a UTF-16 would occupy in UTF-8.
+ */
+class CalculateUTF8Size
+  {
+    public:
+      typedef nsAString::char_type value_type;
+
+    CalculateUTF8Size()
+      : mSize(0) { }
+
+    size_t Size() const { return mSize; }
+
+    PRUint32 NS_ALWAYS_INLINE write( const value_type* start, PRUint32 N )
+      {
+        // Assume UCS2 surrogate pairs won't be spread across fragments.
+        for (const value_type *p = start, *end = start + N; p < end; ++p )
+          {
+            value_type c = *p;
+            if (! (c & 0xFF80)) // U+0000 - U+007F
+              mSize += 1;
+            else if (! (c & 0xF800)) // U+0100 - U+07FF
+              mSize += 2;
+            else if (0xD800 != (0xF800 & c)) // U+0800 - U+D7FF,U+E000 - U+FFFF
+              mSize += 3;
+            else if (0xD800 == (0xFC00 & c)) // U+D800 - U+DBFF
+              {
+                ++p;
+                if (p == end)
+                  {
+                    NS_ERROR("Surrogate pair split between fragments");
+                    return N;
+                  }
+                c = *p;
+
+                if (0xDC00 == (0xFC00 & c))
+                  mSize += 4;
+                else
+                  NS_ERROR("got a high Surrogate but no low surrogate");
+              }
+            else // U+DC00 - U+DFFF
+              NS_ERROR("got a low Surrogate but no high surrogate");
+          }
+
+        return N;
+      }
+
+    private:
+      size_t mSize;
+  };
+
+/**
+ * A character sink that performs a |reinterpret_cast| style conversion
+ * between character types.
+ */
+template <class FromCharT, class ToCharT>
+class LossyConvertEncoding
+  {
+    public:
+      typedef FromCharT value_type;
+ 
+      typedef FromCharT input_type;
+      typedef ToCharT   output_type;
+
+      typedef typename nsCharTraits<FromCharT>::unsigned_char_type unsigned_input_type;
+
+    public:
+      LossyConvertEncoding( output_type* aDestination ) : mDestination(aDestination) { }
+
+      PRUint32
+      write( const input_type* aSource, PRUint32 aSourceLength )
+        {
+          const input_type* done_writing = aSource + aSourceLength;
+          while ( aSource < done_writing )
+            *mDestination++ = (output_type)(unsigned_input_type)(*aSource++);  // use old-style cast to mimic old |ns[C]String| behavior
+          return aSourceLength;
+        }
+
+      void
+      write_terminator()
+        {
+          *mDestination = output_type(0);
+        }
+
+    private:
+      output_type* mDestination;
+  };
+
+#endif /* !defined(nsUTF8Utils_h_) */
diff --git a/src/libs/xpcom18a4/xpcom/string/public/nsXPIDLString.h b/src/libs/xpcom18a4/xpcom/string/public/nsXPIDLString.h
new file mode 100644
index 00000000..c66a2d7a
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/nsXPIDLString.h
@@ -0,0 +1,46 @@
+/* -*- 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 ***** */
+
+#ifndef nsXPIDLString_h___
+#define nsXPIDLString_h___
+
+#ifndef nsString_h___
+#include "nsString.h"
+#endif
+
+#endif /* !defined(nsXPIDLString_h___) */
diff --git a/src/libs/xpcom18a4/xpcom/string/public/string-template-def-char.h b/src/libs/xpcom18a4/xpcom/string/public/string-template-def-char.h
new file mode 100644
index 00000000..d0f3a907
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/string-template-def-char.h
@@ -0,0 +1,58 @@
+/* -*- 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 ***** */
+
+#define CharT                               char
+#define CharT_is_char                       1
+#define nsTObsoleteAString_CharT            nsObsoleteACString
+#define nsTObsoleteAStringThunk_CharT       nsObsoleteACStringThunk
+#define nsTAString_CharT                    nsACString
+#define nsTAString_IncompatibleCharT        nsAString
+#define nsTString_CharT                     nsCString
+#define nsTFixedString_CharT                nsFixedCString
+#define nsTAutoString_CharT                 nsCAutoString
+#define nsTSubstring_CharT                  nsCSubstring
+#define nsTSubstringTuple_CharT             nsCSubstringTuple
+#define nsTStringComparator_CharT           nsCStringComparator
+#define nsTDefaultStringComparator_CharT    nsDefaultCStringComparator
+#define nsTDependentString_CharT            nsDependentCString
+#define nsTDependentSubstring_CharT         nsDependentCSubstring
+#define nsTXPIDLString_CharT                nsXPIDLCString
+#define nsTGetterCopies_CharT               nsCGetterCopies
+#define nsTAdoptingString_CharT             nsAdoptingCString
+#define nsTPromiseFlatString_CharT          nsPromiseFlatCString
+#define TPromiseFlatString_CharT            PromiseFlatCString
diff --git a/src/libs/xpcom18a4/xpcom/string/public/string-template-def-unichar.h b/src/libs/xpcom18a4/xpcom/string/public/string-template-def-unichar.h
new file mode 100644
index 00000000..c966dfbe
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/string-template-def-unichar.h
@@ -0,0 +1,58 @@
+/* -*- 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 ***** */
+
+#define CharT                               PRUnichar
+#define CharT_is_PRUnichar                  1
+#define nsTObsoleteAString_CharT            nsObsoleteAString
+#define nsTObsoleteAStringThunk_CharT       nsObsoleteAStringThunk
+#define nsTAString_CharT                    nsAString
+#define nsTAString_IncompatibleCharT        nsACString
+#define nsTString_CharT                     nsString
+#define nsTFixedString_CharT                nsFixedString
+#define nsTAutoString_CharT                 nsAutoString
+#define nsTSubstring_CharT                  nsSubstring
+#define nsTSubstringTuple_CharT             nsSubstringTuple
+#define nsTStringComparator_CharT           nsStringComparator
+#define nsTDefaultStringComparator_CharT    nsDefaultStringComparator
+#define nsTDependentString_CharT            nsDependentString
+#define nsTDependentSubstring_CharT         nsDependentSubstring
+#define nsTXPIDLString_CharT                nsXPIDLString
+#define nsTGetterCopies_CharT               nsGetterCopies
+#define nsTAdoptingString_CharT             nsAdoptingString
+#define nsTPromiseFlatString_CharT          nsPromiseFlatString
+#define TPromiseFlatString_CharT            PromiseFlatString
diff --git a/src/libs/xpcom18a4/xpcom/string/public/string-template-undef.h b/src/libs/xpcom18a4/xpcom/string/public/string-template-undef.h
new file mode 100644
index 00000000..45344370
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/string/public/string-template-undef.h
@@ -0,0 +1,59 @@
+/* -*- 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 ***** */
+
+#undef CharT
+#undef CharT_is_PRUnichar
+#undef CharT_is_char
+#undef nsTObsoleteAString_CharT
+#undef nsTObsoleteAStringThunk_CharT
+#undef nsTAString_CharT
+#undef nsTAString_IncompatibleCharT
+#undef nsTString_CharT
+#undef nsTFixedString_CharT
+#undef nsTAutoString_CharT
+#undef nsTSubstring_CharT
+#undef nsTSubstringTuple_CharT
+#undef nsTStringComparator_CharT
+#undef nsTDefaultStringComparator_CharT
+#undef nsTDependentString_CharT
+#undef nsTDependentSubstring_CharT
+#undef nsTXPIDLString_CharT
+#undef nsTGetterCopies_CharT
+#undef nsTAdoptingString_CharT
+#undef nsTPromiseFlatString_CharT
+#undef TPromiseFlatString_CharT