win/idl/nsIConverterOutputStream.idl

/* vim:set expandtab ts=4 sw=4 sts=4 cin: */
/* ***** 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 unicode stream converter code.
 *
 * The Initial Developer of the Original Code is
 * Christian Biesinger <cbiesinger@web.de>.
 * Portions created by the Initial Developer are Copyright (C) 2005
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * 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 ***** */

#include "nsIUnicharOutputStream.idl"

interface nsIOutputStream;

/**
 * This interface allows writing strings to a stream, doing automatic
 * character encoding conversion.
 */
[scriptable, uuid(4b71113a-cb0d-479f-8ed5-01daeba2e8d4)]
interface nsIConverterOutputStream : nsIUnicharOutputStream
{
    /**
     * Initialize this stream. Must be called before any other method on this
     * interface, or you will crash. The output stream passed to this method
     * must not be null, or you will crash.
     *
     * @param aOutStream
     *        The underlying output stream to which the converted strings will
     *        be written.
     * @param aCharset
     *        The character set to use for encoding the characters. A null
     *        charset will be interpreted as UTF-8.
     * @param aBufferSize
     *        How many bytes to buffer. A value of 0 means that no bytes will be
     *        buffered. Implementations not supporting buffering may ignore
     *        this parameter.
     * @param aReplacementCharacter
     *        The replacement character to use when an unsupported character is found.
     *        The character must be encodable in the selected character
     *        encoding; otherwise, attempts to write an unsupported character
     *        will throw NS_ERROR_LOSS_OF_SIGNIFICANT_DATA.
     *
     *        A value of 0x0000 will cause an exception to be thrown upon
     *        attempts to write unsupported characters.
     */
    void init(in nsIOutputStream aOutStream, in string aCharset,
              in unsigned long aBufferSize,
              in PRUnichar aReplacementCharacter);
};