完整的VB.NET的语法解析程序

using System;

using System.Text;

using System.Text.RegularExpressions;
namespace Com.OSLeague.Component

{

/// <summary>

/// 语法分析器，将所有Code根据语法进行变色

/// <list type="VB">支持VB.NET</list>

/// <list type="CS">支持CS</list>

/// <author>掉掉</author>

/// <date>2002年5月14日</date>

/// <Memo>

/// 练习正则表达式

/// </Memo>

/// </summary>

public class CodeAnalysis

{

//

//定义HTML开始和结束的语句，用于语法变色

//

const string TAG_FNTRED = @"<font color=""red"">";

const string TAG_FNTBLUE = @"<font color=""blue"">" ;

const string TAG_FNTGRN = @"<font color=""green"">" ;

const string TAG_FNTMRN = @"<font color=""maroon"">" ;

const string TAG_FNTBLACK = @"<font color=""black"">" ;

const string TAG_EFONT = @"</font>" ;

const string TAG_SPNYELLOW = @"<span style=""background-color: yellow;"">";

const string TAG_ESPAN = @"</span>";

const string TAG_B = @"<b>";

const string TAG_EB = @"</b>";

const string TAG_COMMENT = @"<font colr=#008200>";

const string TAG_ECOMMENT = @"</font>";

//
public CodeAnalysis()

{

//

// TODO: 在此处添加构造函数逻辑

//

}
/// <summary>

/// 处理VB.NET代码，彩色化..

/// </summary>

/// <param name="Code">传入的Code</param>

/// <returns>处理过后的代码</returns>

public string ParseVB(string Code)

{

//

//定义VB.NET中关键字，将其存为数组

//
string[] VB_Keyword = new string[]

;
//

//设定转换代码颜色

//
string ReplaceVBComment = TAG_COMMENT + "" + TAG_ECOMMENT;

string ReplaceVBKeyword = TAG_FNTBLUE + "$" + TAG_EFONT;

//开始转换

for (int i=0;i<VB_Keyword.Length;i++)

{

string TempDirectives = @"(?<char>(s" + VB_Keyword[i] + "|" + VB_Keyword[i] + @"s))";

Code = Regex.Replace(Code,TempDirectives,ReplaceVBKeyword,RegexOptions.IgnoreCase);

Code = Regex.Replace(Code,@"'(?<x>[^rn]*)",ReplaceVBComment);

Code = Regex.Replace(Code,@"REM (?<x>[^rn]*)",ReplaceVBComment);

}

return Code; 

}

}

}