gecko-dev/editor/libeditor/text/nsAOLCiter.cpp

/* -*- 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):
 *   Pierre Phaneuf <pp@ludusdesign.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 ***** */

#include "nsAOLCiter.h"

#include "nsWrapUtils.h"
#include "nsReadableUtils.h"
#include "nsCRT.h"

/** Mail citations using the AOL style >> This is a citation <<
  */

nsAOLCiter::nsAOLCiter()
{
}

nsAOLCiter::~nsAOLCiter()
{
}

NS_IMPL_ISUPPORTS1(nsAOLCiter, nsICiter)

NS_IMETHODIMP
nsAOLCiter::GetCiteString(const nsAString& aInString, nsAString& aOutString)
{
  aOutString.AssignLiteral("\n\n>> ");
  aOutString += aInString;

  // See if the last char is a newline, and replace it if so
  PRUnichar newline ('\n');
  if (aOutString.Last() == newline)
  {
    aOutString.SetLength(aOutString.Length() - 1);
  }

  aOutString.AppendLiteral(" <<\n");

  return NS_OK;
}

NS_IMETHODIMP
nsAOLCiter::StripCites(const nsAString& aInString, nsAString& aOutString)
{
  // Remove the beginning cites, if any:
  nsAutoString tOutputString;
  nsReadingIterator <PRUnichar> iter, enditer;
  aInString.BeginReading(iter);
  aInString.EndReading(enditer);
  if (StringBeginsWith(aInString, NS_LITERAL_STRING(">>")))
  {
    iter.advance(2);
    while (nsCRT::IsAsciiSpace(*iter))
      ++iter;
    AppendUnicodeTo(iter, enditer, tOutputString);
  }
  else
    CopyUnicodeTo(iter, enditer, tOutputString);

  // Remove the end cites, if any:
  tOutputString.Trim("<", PR_FALSE, PR_TRUE, PR_FALSE);
  aOutString.Assign(tOutputString);
  return NS_OK;
}

NS_IMETHODIMP
nsAOLCiter::Rewrap(const nsAString& aInString,
                   PRUint32 aWrapCol, PRUint32 aFirstLineOffset,
                   PRBool aRespectNewlines,
                   nsAString& aOutString)
{
  nsString citeString;
  return nsWrapUtils::Rewrap(aInString, aWrapCol, aFirstLineOffset,
                             aRespectNewlines, citeString,
                             aOutString);
}