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A PHP engine implemented in 100% Java
/*
* Copyright (c) 1998-2012 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Nam Nguyen
*/
package com.caucho.quercus.lib.i18n;
import com.caucho.quercus.env.Env;
import com.caucho.quercus.env.StringValue;
abstract public class Encoder
{
protected static final int ERROR_CHARACTER = 0xFFFE;
protected String _charset;
protected String _replacement;
protected boolean _isIgnore;
protected boolean _isReplaceUnicode = false;
protected Encoder(String charset)
{
_charset = charset;
}
public static Encoder create(String charset)
{
if (charset.equalsIgnoreCase("utf8")
|| charset.equalsIgnoreCase("utf-8"))
return new Utf8Encoder();
else if (charset.equalsIgnoreCase("big5")
|| charset.equalsIgnoreCase("big-5"))
return new Big5Encoder(charset);
else
return new GenericEncoder(charset);
}
public boolean isUtf8()
{
return false;
}
public boolean isIgnore()
{
return _isIgnore;
}
public void setIgnoreErrors(boolean isIgnore)
{
_isIgnore = isIgnore;
}
public void setReplacement(String replacement)
{
_replacement = replacement;
}
public final void setReplaceUnicode(boolean isReplaceUnicode)
{
_isReplaceUnicode = isReplaceUnicode;
}
public void reset()
{
}
abstract public boolean isEncodable(StringValue str,
int start, int end);
public StringValue encode(StringValue sb, CharSequence str)
{
return encode(sb, str, 0, str.length());
}
public StringValue encode(StringValue sb, CharSequence str, boolean isReset)
{
return encode(sb, str, 0, str.length(), isReset);
}
abstract public StringValue encode(StringValue sb, CharSequence str,
int start, int end);
public final StringValue encode(StringValue sb, CharSequence str,
int start, int end, boolean isReset)
{
if (isReset)
reset();
return encode(sb, str, start, end);
}
}