/*
* Copyright (c) 1998-2011 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.gettext;
import com.caucho.quercus.env.StringValue;
import com.caucho.quercus.lib.gettext.expr.PluralExpr;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
abstract class GettextParser
{
PluralExpr _pluralExpr;
String _charset;
PluralExpr getPluralExpr()
{
return _pluralExpr;
}
/*
* Returns the charset defined in the PO/MO file.
*/
public String getCharset()
{
return _charset;
}
/**
* Extracts the charset from the gettext metadata.
*/
protected static String getCharset(StringValue metadata)
{
String header = "charset=";
int i = metadata.indexOf(header);
if (i < 0)
return "UTF-8";
i = i + header.length();
int len = metadata.length();
int j = i + 1;
for (; j < len; j++) {
char ch = metadata.charAt(j);
switch (ch) {
case ' ':
case '\t':
case '\r':
case '\n':
return metadata.substring(i, j).toString();
default:
continue;
}
}
return metadata.substring(i, j).toString();
}
/**
* Returns the gettext translations.
*
* @return translations from file, or null on error
*/
abstract HashMap<StringValue, ArrayList<StringValue>> readTranslations()
throws IOException;
abstract void close();
}