android - 用 xmlpullparser 解析类似 html 的文档？

Question

所以我必须解析包含嵌套标签的丑陋文件，例如

<p>blah<strong>lah</strong>blah</p>

嵌套标签已定义，我不关心它们。但是它们使 XmlPullParser 失败：

XmlPullParser parser = XmlPullParserFactory.newInstance().newPullParser();
parser.setInput(some_reader);
while (parser.next() != XmlPullParser.END_DOCUMENT) {
    if (XmlPullParser.START_TAG == event) {
        String tag = parser.getName();
        if (tag != null) {
            tag = tag.toLowerCase();
        } else {
            continue;
        }
       if ("p".equals(tag)) {
           String text = parser.nextText();
           // and here we go
           // org.xmlpull.v1.XmlPullParserException: expected: /p read: strong
        }
    }
}

问题：我有没有机会在不预处理文件的情况下剥离所有不必要的标签或使用第三方库？

编辑：更新了片段以使其真正有意义。

Answer 1

package com.xml;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import android.util.Log;

public class FeedHandler extends DefaultHandler {

    StringBuilder sb = null;
    String ret = "";
    boolean bStore = false;
    int howMany = 0;

    FeedHandler() {   }

    String getResults()
    {
        return "XML parsed data.\nThere are [" + howMany + "] status updates\n\n" + ret;
    }
    @Override
    public void startDocument() throws SAXException 
    {
        // initialize "list"
    }

    @Override
    public void endDocument() throws SAXException
    {

    }

    @Override
    public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {

        try {
            if (localName.equals("status"))
            {
                this.sb = new StringBuilder("");
                bStore = true;
            }
            if (localName.equals("user")) 
            {
                bStore = false;
            }
            if (localName.equals("text")) 
            {
                this.sb = new StringBuilder("");
            }
            if (localName.equals("created_at")) 
            {
                this.sb = new StringBuilder("");
            }
        } catch (Exception e) 
        {

            Log.d("error in startElement", e.getStackTrace().toString());
        }
    }
    @Override

    public void endElement(String namespaceURI, String localName, String qName) throws SAXException 
    {

        if (bStore) 
        {
            if (localName.equals("created_at"))
            {
                ret += "Date: " + sb.toString() + "\n"; 
                sb = new StringBuilder("");
                return;

            }

            if (localName.equals("user"))
            {
                bStore = true;
            }

            if (localName.equals("text")) 
            {

                ret += "Post: " + sb.toString() + "\n\n";
                sb = new StringBuilder("");
                return;

            }


        }
        if (localName.equals("status"))
        {
            howMany++;
            bStore = false;
        }
    }
    @Override

    public void characters(char ch[], int start, int length)
    {

        if (bStore) 
        {
            String theString = new String(ch, start, length);

            this.sb.append(theString);
        }
    }

}

这是我扩展 Activity 的 xmlActivity 类

            InputSource is = new InputSource(getResources().openRawResource(R.raw.my));
            System.out.println("running xml file..... ");
        // create the factory
        SAXParserFactory factory = SAXParserFactory.newInstance();

        // create a parser
        SAXParser parser = factory.newSAXParser();

        // create the reader (scanner)
        XMLReader xmlreader = parser.getXMLReader();

        // instantiate our handler
        FeedHandler fh = new FeedHandler();

        // assign our handler
        xmlreader.setContentHandler(fh);

        // perform the synchronous parse
        xmlreader.parse(is);

        // should be done... let's display our results
        tvData.setText(fh.getResults());

Answer 2

所以我摆脱了 XMLPullParser 并切换到 SAXParser。此外，它的性能更好。