闭合HTML标签和添加开始HTML标签

本文介绍了一个方法,用于解决HTML代码中标签顺序的问题,通过遍历并添加缺失的开始和结束标签来确保代码的有效性和正确性。

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//基本想要得功能实现了,但在添加的标签顺序还有点问题 

 

#region 闭合HTML代码
        public string CloseHTML(string str)
        {
            string[] HtmlTag = new string[] { "ul", "font", "b", "u", "i", "a", "h1", "h2", "h3", "h4", "h5", "h6", "tr", "td", "span", "div", "table", "p" };
            for (int i = 0; i < HtmlTag.Length; i++)
            {
                int OpenNum = 0, CloseNum = 0;
                Regex re = new Regex("\\<" + HtmlTag[i] + "( [^\\<\\>]+|)\\>", RegexOptions.IgnoreCase);
                MatchCollection m = re.Matches(str);
                if (m != null)
                {
                    OpenNum = m.Count;
                }
                re = new Regex("\\<\\/" + HtmlTag[i] + "\\>", RegexOptions.IgnoreCase);
                m = re.Matches(str);
                if (m != null)
                {
                    CloseNum = m.Count;
                }

                for (int j = 0; j < OpenNum - CloseNum; j++)
                {
                    str += "</" + HtmlTag[i] + ">";
                }
            }
            return str;
        }
        #endregion

        #region 添加开始HTML代码
        public string OpenHTML(string str)
        {
            string[] HtmlTag = new string[] { "ul", "font", "b", "u", "i", "a", "h1", "h2", "h3", "h4", "h5", "h6", "tr", "td", "span", "div", "table", "p" };
            for (int i = 0; i < HtmlTag.Length; i++)
            {
                int OpenNum = 0, CloseNum = 0;
                Regex re = new Regex("\\<\\/" + HtmlTag[i] + "\\>", RegexOptions.IgnoreCase);
                MatchCollection m = re.Matches(str);
                if (m != null)
                {
                    OpenNum = m.Count;
                }
                re = new Regex("\\<" + HtmlTag[i] + "( [^\\<\\>]+|)\\>", RegexOptions.IgnoreCase);
                m = re.Matches(str);
                if (m != null)
                {
                    CloseNum = m.Count;
                }

                for (int j = 0; j < OpenNum - CloseNum; j++)
                {
                    str = "<" + HtmlTag[i] + ">" + str;
                }
            }
            return str;
        }
        #endregion

转载于:https://www.cnblogs.com/panlin/archive/2013/02/05/2892614.html

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