gecko/intl/uconv/idl/nsIScriptableUConv.idl

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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#include "nsISupports.idl"

interface nsIInputStream;

%{C++
// {0A698C44-3BFF-11d4-9649-00C0CA135B4E}
#define NS_ISCRIPTABLEUNICODECONVERTER_CID { 0x0A698C44, 0x3BFF, 0x11d4, { 0x96, 0x49, 0x00, 0xC0, 0xCA, 0x13, 0x5B, 0x4E } }
#define NS_ISCRIPTABLEUNICODECONVERTER_CONTRACTID "@mozilla.org/intl/scriptableunicodeconverter"
%}

/**
 * This interface is a unicode encoder for use by scripts
 *
 * @created         8/Jun/2000
 * @author          Makoto Kato [m_kato@ga2.so-net.ne.jp]
 */
[scriptable, uuid(1ea19c6c-c59f-4fd7-9fc7-151e946baca0)]
interface nsIScriptableUnicodeConverter : nsISupports
{
  /**
   * Converts the data from Unicode to one Charset.
   * Returns the converted string. After converting, Finish should be called
   * and its return value appended to this return value.
   */
  ACString ConvertFromUnicode(in AString aSrc);

  /**
   * Returns the terminator string.
   * Should be called after ConvertFromUnicode() and appended to that
   * function's return value.
   */
  ACString Finish();

  /**
   * Converts the data from one Charset to Unicode.
   */
  AString ConvertToUnicode(in ACString aSrc);

  /**
   * Converts an array of bytes to a unicode string.
   */
  AString convertFromByteArray([const,array,size_is(aCount)] in octet aData,
                               in unsigned long aCount);

  /**
   * Convert a unicode string to an array of bytes. Finish does not need to be
   * called.
   */
  void convertToByteArray(in AString aString,
                          [optional] out unsigned long aLen,
                          [array, size_is(aLen),retval] out octet aData);

  /**
   * Converts a unicode string to an input stream. The bytes in the stream are
   * encoded according to the charset attribute.
   * The returned stream will be nonblocking.
   */
  nsIInputStream convertToInputStream(in AString aString);

  /**
   * Current character set.
   *
   * @throw NS_ERROR_UCONV_NOCONV
   *        The requested charset is not supported.
   */
  attribute string charset;
};