class1.cs

简单的词法分析器 利用vc编程 功能 可以打开任意位置和名称的原文件进行词法分析

using System;
using System.IO;
using System.Collections;

namespace Analyzer
{
	/// <summary>
	/// Class1 的摘要说明。
	/// </summary>
	class MainProcess
	{
		private static StreamReader br;

		//private static ArrayList analTable;
    
		private static ArrayList symbolTable;

		private static int[,] LR=new int[30,30];

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			//
			// TODO: 在此处添加代码以启动应用程序
			//
			//Console.WriteLine("//------------------------------------------------------//");
			//Console.WriteLine("//------------71103405 张劲松---------------------------//");
			//Console.WriteLine("//--------------词法＋语法分析器------------------------//");
			//Console.WriteLine("//------------------------------------------------------//");

			Console.WriteLine();
			Console.WriteLine();
			Console.WriteLine();

			symbolTable = new ArrayList();

			readFile("../../Res/test.txt");

			
			string content = br.ReadToEnd();
			Console.WriteLine("分析程序:");
			Console.WriteLine(content);	
			br.Close();

			Console.WriteLine();

			readFile("../../Res/test.txt");
			Lexical lex = new Lexical(br);
        
			readFile("../../Res/analTableRes.txt");

			//analTable = new ArrayList();
			getAnalTable();
        
			symbolTable = lex.getSymbolTable();
			printAnswer();
        
			//Syntax syn = new Syntax(symbolTable,analTable);
			LRSyntax syn = new LRSyntax(symbolTable,LR);
			
			syn.analyzer();

			Console.ReadLine();
		}

//		private static void getAnalTable()
//		{
//			char c=' ';
//			String str="";
//
//			for(int i=0;i<15;i++)
//			{
//				analTable.Add(new ArrayList());
//				for(int j=0;j<24;j++)
//				{
//					str="";
//					c=(char)br.Read();
//					while((int)c!=9&&(int)c!=13)
//					{
//						str+=c.ToString();
//						c=(char)br.Read();
//					}
//					((ArrayList)analTable[i]).Add(str);
//
//					//System.out.print(str+"      ");
//					//if(str.Length != 0)
//					//	Console.WriteLine(str+"      ");
//				}
//				br.Read();
//				//System.out.println();
//			
		//Console.WriteLine();
//			}
//
//			br.Close();
//		}

		private static void getAnalTable()
		{
			//读入LR—table
			//Convert.ToInt32(s);
			string strLR;
			strLR="../../Res/LR-table.txt";
			br = new StreamReader(strLR);
			string strBufferLR;
			int pp=0;
			do
			{
				
				strBufferLR =br.ReadLine();
				if(strBufferLR==null)
					break;
				
				else
				{
					int j=0;
				
					foreach (String subString in strBufferLR.Split())
					{
					
					
						if(subString!=null)
						{
							int lllr=Convert.ToInt16(subString);
							LR[pp,j]=lllr;
							//Console.Write(LR[pp,j].ToString()+" ");
							j++;
						}

					
					}
				}
				pp++;
				//Console.WriteLine();
			}
			while (strBufferLR!=null);
		}
		

		public static void readFile(String fileName)
		{
			br = new StreamReader(fileName);
		}

		private static void printAnswer()
		{
			Console.WriteLine("//------------------------------------------------------//");
			Console.WriteLine("//-------------------词法分析结果-----------------------//");
			Console.WriteLine("//------------------------------------------------------//");
			for(int i=0;i<symbolTable.Count;i++)
			{
				ArrayList tempArray=(ArrayList)symbolTable[i];
				for(int j=0;j<tempArray.Count;j++)
				{
				//	System.out.print(tempArray.get(j).toString()+"  ");
					Console.Write(tempArray[j].ToString()+"  ");
				}
				//System.out.println();
				Console.WriteLine();
			}

			Console.WriteLine();
		}
	}
}