mathml转换成latex的工具类！！！

fmath-latex-mathml-0.5.jar
fmath-mathml-1.0.jar
fmath-mathml-java-3.1.jar

public class MathMLToLatexUtil {

    public String tMathMLToLatex(String sText)
    {
        String keys = "<math.*?</math>";
        Pattern pattern = Pattern.compile(keys);
        String strResult = "";

        try
        {
            Matcher matcher = pattern.matcher(strText);
            StringBuffer sbr = new StringBuffer();
            while (matcher.find())
            {
                String strTmp = matcher.group();
                try
                {
                    strTmp = strTmp.replace("<math xmlns=\'http://www.w3.org/1998/Math/MathML\'>", "<math>");
                    strTmp = strTmp.replaceAll("<math[^>]*>", "<math>");
                    strTmp = ConvertFromMathMLToLatex.convertToLatex(strTmp);
                    strTmp = strTmp.replace("\\", "##");
                    strTmp = "@@" + strTmp + "@@";
                }
                catch (Exception e)
                {
                    // TODO: handle exception
                    strTmp = "";
                    e.printStackTrace();
                }

                matcher.appendReplacement(sbr, strTmp);
            }
            matcher.appendTail(sbr);
            strResult = sbr.toString();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }

        strResult = strResult.replace("@@", "$");
        strResult = strResult.replace("##", "\\");

        return strResult;
    }

}