1using System;
  2using System.Text;
  3
  4namespace BaseText
  5...{
  6    /**//// <summary>
  7    /// 类 编 号：JavaScriptWriter
  8    /// 类 名 称：JavaScriptWriter
  9    /// 内容摘要：   主要功能是实现日期控键客户端脚本输出。
 10    /// </summary>
 11    internal class JavaScriptWriter
 12    ...{
 13        public JavaScriptWriter() ...{}
 14
 15        变量区#region 变量区
 16
 17        private StringBuilder sb = new StringBuilder();
 18        private int currIndent = 0;
 19        private int openBlocks = 0;
 20        private bool format = false;
 21
 22        #endregion        
 23
 24        方法区#region 方法区
 25
 26        /**//// <summary>
 27        /// 在书入到页面时是否需要格式
 28        /// </summary>
 29        /// <param name="Formatted">需要格式?</param>
 30        public JavaScriptWriter(bool Formatted)
 31        ...{
 32            format = Formatted;
 33        }
 34
 35        /**//// <summary>
 36        /// 当前的缩进层次
 37        /// </summary>
 38        public int Indent
 39        ...{
 40            get ...{ return currIndent; }
 41            set ...{ currIndent = value; }
 42        }
 43
 44        /**//// <summary>
 45        /// 新增一行javascript代码
 46        /// </summary>
 47        /// <param name="parts">代码字串的数组</param>
 48        public void AddLine(params string[] parts)
 49        ...{
 50            // 如果有格式设置，则加入缩进的行
 51            if (format)
 52                for (int i=0; i < currIndent; i++)
 53                    sb.Append("\t");
 54
 55                foreach (string part in parts)
 56                sb.Append(part);
 57
 58            if (format)
 59                sb.Append(Environment.NewLine);
 60            else
 61                if (parts.Length > 0)
 62                sb.Append(" ");
 63        }
 64
 65        /**//// <summary>
 66        /// 输入"{"，并使层次缩进一层
 67        /// </summary>
 68        public void OpenBlock()
 69        ...{
 70            AddLine("{");
 71            currIndent++;
 72            openBlocks++;
 73        }
 74
 75        /**//// <summary>
 76        /// 输入"{"，并使层次扩展一层
 77        /// </summary>
 78        public void CloseBlock()
 79        ...{
 80            // 检查一个function有没有"{"
 81            if (openBlocks < 1)
 82                throw new InvalidOperationException("在调用JavaScriptWriter.CloseBlock()时没有先前的JavaScriptWriter.OpenBlock()调用");
 83
 84            currIndent--;
 85            openBlocks--;
 86            AddLine("}");
 87        }
 88
 89        /**//// <summary>
 90        /// 加入注解的(为javascript加入注解)
 91        /// </summary>
 92        /// <param name="CommentText">注解的字串数组.</param>
 93        public void AddCommentLine(params string[] CommentText)
 94        ...{
 95            if (format)
 96            ...{
 97                for (int i=0; i < currIndent; i++)
 98                    sb.Append("\t");
 99
100                sb.Append ("// ");
101
102                foreach (string part in CommentText)
103                    sb.Append(part);
104
105                sb.Append(Environment.NewLine);
106            }
107        }
108
109        /**//// <summary>
110        /// 转换开发和结束的javascript的标记，并在中间加入已加入的javascrpt的代码
111        /// </summary>
112        /// <returns>返回标准的javascript代码</returns>
113        public override string ToString()
114        ...{
115            if (openBlocks > 0)
116                throw new InvalidOperationException("JavaScriptWriter: 没有相应的关闭标识");
117
118            return String.Format(
119                "<script language=\"javascript\" type=\"text/javascript\">{0}{1}</script>", 
120                Environment.NewLine, 
121                sb
122                );
123        }
124
125        #endregion
126    }
127}
128