/**
* This file is part of pinyin4j (http://sourceforge.net/projects/pinyin4j/) and distributed under
* GNU GENERAL PUBLIC LICENSE (GPL).
*
* pinyin4j 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.
*
* pinyin4j 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. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with pinyin4j.
*/
/**
*
*/
package net.sourceforge.pinyin4j;
import com.hp.hpl.sparta.Document;
import com.hp.hpl.sparta.Element;
import com.hp.hpl.sparta.ParseException;
/**
* Contains the logic translating among different Chinese Romanization systems
*
* @author Li Min (xmlerlimin@gmail.com)
*
*/
class PinyinRomanizationTranslator {
/**
* convert the given unformatted Pinyin string from source Romanization
* system to target Romanization system
*
* @param sourcePinyinStr
* the given unformatted Pinyin string
* @param sourcePinyinSystem
* the Romanization system which is currently used by the given
* unformatted Pinyin string
* @param targetPinyinSystem
* the Romanization system that should be converted to
* @return unformatted Pinyin string in target Romanization system; null if
* error happens
*/
static String convertRomanizationSystem(String sourcePinyinStr,
PinyinRomanizationType sourcePinyinSystem, PinyinRomanizationType targetPinyinSystem) {
String pinyinString = TextHelper.extractPinyinString(sourcePinyinStr);
String toneNumberStr = TextHelper.extractToneNumber(sourcePinyinStr);
// return value
String targetPinyinStr = null;
try {
// find the node of source Pinyin system
String xpathQuery1 =
"//" + sourcePinyinSystem.getTagName() + "[text()='" + pinyinString + "']";
Document pinyinMappingDoc = PinyinRomanizationResource.getInstance().getPinyinMappingDoc();
Element hanyuNode = pinyinMappingDoc.xpathSelectElement(xpathQuery1);
if (null != hanyuNode) {
// find the node of target Pinyin system
String xpathQuery2 = "../" + targetPinyinSystem.getTagName() + "/text()";
String targetPinyinStrWithoutToneNumber = hanyuNode.xpathSelectString(xpathQuery2);
targetPinyinStr = targetPinyinStrWithoutToneNumber + toneNumberStr;
}
} catch (ParseException e) {
e.printStackTrace();
}
return targetPinyinStr;
}
}