Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream

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

1 files changed, 373 insertions, 0 deletions

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___) */