htmlchunkimpl.java

java 文件下载器。可自定义

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   HTMLChunkImpl.java

package org.gudy.azureus2.core3.html.impl;

import java.util.ArrayList;
import java.util.List;
import org.gudy.azureus2.core3.html.HTMLTable;

// Referenced classes of package org.gudy.azureus2.core3.html.impl:
//			HTMLTableImpl

public class HTMLChunkImpl
{

	String content;

	protected HTMLChunkImpl()
	{
	}

	protected HTMLChunkImpl(String _content)
	{
		content = _content;
	}

	protected void setContent(String str)
	{
		content = str;
	}

	public String[] getLinks()
	{
		int pos = 0;
		List res = new ArrayList();
		do
		{
			int p1 = content.indexOf("<", pos);
			if (p1 == -1)
				break;
			p1++;
			int p2 = content.indexOf(">", p1);
			if (p2 == -1)
				break;
			pos = p2;
			String tag = content.substring(p1, p2).trim();
			String lc_tag = tag.toLowerCase();
			if (lc_tag.startsWith("a "))
			{
				int hr_start = lc_tag.indexOf("href");
				if (hr_start != -1)
				{
					hr_start = lc_tag.indexOf("=", hr_start);
					if (hr_start != -1)
					{
						for (hr_start++; hr_start < lc_tag.length() && Character.isWhitespace(lc_tag.charAt(hr_start)); hr_start++);
						int hr_end;
						for (hr_end = hr_start; hr_end < lc_tag.length() && !Character.isWhitespace(lc_tag.charAt(hr_end)); hr_end++);
						String href = tag.substring(hr_start, hr_end).trim();
						if (href.startsWith("\""))
							href = href.substring(1, href.length() - 1);
						res.add(href);
					}
				}
			}
		} while (true);
		String res_array[] = new String[res.size()];
		res.toArray(res_array);
		return res_array;
	}

	public HTMLTable[] getTables()
	{
		String tables[] = getTagPairContent("table");
		HTMLTable res[] = new HTMLTable[tables.length];
		for (int i = 0; i < tables.length; i++)
			res[i] = new HTMLTableImpl(tables[i]);

		return res;
	}

	public String[] getTags(String tag_name)
	{
		tag_name = tag_name.toLowerCase();
		String lc_content = content.toLowerCase();
		int pos = 0;
		List res = new ArrayList();
		do
		{
			int p1 = lc_content.indexOf((new StringBuilder()).append("<").append(tag_name).toString(), pos);
			if (p1 == -1)
				break;
			int p2 = lc_content.indexOf(">", p1);
			if (p2 == -1)
				break;
			res.add(content.substring(p1 + 1, p2));
			pos = p2 + 1;
		} while (true);
		String x[] = new String[res.size()];
		res.toArray(x);
		return x;
	}

	public String[] getTagPairContent(String tag_name)
	{
		tag_name = tag_name.toLowerCase();
		String lc_content = content.toLowerCase();
		int pos = 0;
		List res = new ArrayList();
		int level = 0;
		int start_pos = -1;
		do
		{
			int start_tag_start = lc_content.indexOf((new StringBuilder()).append("<").append(tag_name).toString(), pos);
			int end_tag_start = lc_content.indexOf((new StringBuilder()).append("</").append(tag_name).toString(), pos);
			if (level == 0)
			{
				if (start_tag_start == -1)
					break;
				start_pos = start_tag_start;
				level = 1;
				pos = start_pos + 1;
				continue;
			}
			if (end_tag_start == -1)
				break;
			if (start_tag_start == -1 || end_tag_start < start_tag_start)
			{
				if (level == 1)
				{
					String tag_contents = content.substring(start_pos + tag_name.length() + 1, end_tag_start);
					res.add(tag_contents);
				}
				level--;
				pos = end_tag_start + 1;
				continue;
			}
			if (start_tag_start == -1)
				break;
			level++;
			pos = start_tag_start + 1;
		} while (true);
		String res_array[] = new String[res.size()];
		res.toArray(res_array);
		return res_array;
	}

	public String getContent()
	{
		return content;
	}
}