Song.Extend/Html/Context.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
namespace Song.Extend.Html
{
    public class Context
    {        
        private string _text;
        /// <summary>
        /// 完整的HTML数据
        /// </summary>
        public string Text
        {
            get { return _text; }
            set { _text = value; }
        }
        private string _title;
        /// <summary>
        /// HTML页面的标题
        /// </summary>
        public string Title
        {
            get
            {
                Regex re = new Regex(@"(?<=<[\s]*title[^>]*>)(.*?)(?=</[\s]*title[^>]*>)", RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace);
                MatchCollection mc = re.Matches(this._text);
                foreach (Match ma in mc)
                {
                    this._title = ma.Value;
                }
                return _title;

            }
            set
            {
                this._title = value;
                this._text = Regex.Replace(this._text, @"(?<=<[\s]*title[^>]*>)(.*?)(?=</[\s]*title[^>]*>)", value);
            }
        }
        private string _body;
        public string Body
        {
            get
            {
                Regex re = new Regex(@"(?<=<[\s]*body[^>]*>)(.*?)(?=</[\s]*body[^>]*>)", RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace);
                MatchCollection mc = re.Matches(this._text);
                foreach (Match ma in mc)
                {
                    this._body = ma.Value;
                }
                return _body;

            }            
        }
        /// <summary>
        /// 获取某个标签里内的文本
        /// </summary>
        /// <param name="label"></param>
        /// <returns></returns>