SQL 语法分析

想写一个SQL 语法分析,在网上找了一篇源码,在此基础上进行了一些简单的修改.

原文:使用正则表达式实现的语法分析引擎(C#源代码)http://www.chenjiliang.com/Article/View.aspx?ArticleID=2207&TypeID=84

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
namespace SyntaxEngineClass
{
    /// <summary>
    /// 语法分析引擎基类
    /// ZswangY37 wjhu111#21cn.com 2007-03-17 尊重作者，转贴请注明出处
    /// 日期:2007-03-17
    /// 设计:ZswangY37
    /// 支持:wjhu111#21cn.com
    /// 感谢CSDN中的kissknife、chinnel提供改进意见
    /// http://community.csdn.net/Expert/TopicView.asp?id=5400165
    /// </summary>
    class SyntaxEngine
    {
        /// <summary>
        /// 语法项
        /// </summary>
        public class SyntaxItem
        {
            private string FPattern; // 正则表达式
            private RegexOptions FOptions; // 正则表达式附加选项
            private string FName; // 语法名称
            private int FIndex; // 序号

            public string Pattern { get { return FPattern; } } // 正则表达式
            public RegexOptions Options { get { return FOptions; } } // 正则表达式附加选项
            public string Name { get { return FName; } } // 名称
            public int Index { get { return FIndex; } } // 序号

            public SyntaxItem(string APattern, RegexOptions AOptions,
                string AName, int AIndex)
            {
                FPattern = APattern;
                FOptions = AOptions;
                FName = AName;
                FIndex = AIndex;
            }
        }
        /// <summary>
        /// 语法分析返回项
        /// </summary>
        public class AnalyzeReslut
        {
            private SyntaxItem FItem; // 所属语法项
            private string FBlock; // 文字块

            public SyntaxItem Item { get { return FItem; } }
            public string Block { get { return FBlock; } }
            public AnalyzeReslut(SyntaxItem AItem, string ABlock)
            {
                FItem = AItem;
                FBlock = ABlock;
            }
        }

        public class AnalyzeResultSqlStruct
        {
            private string _TableName;

            public string TableName
            {
                get { return _TableName; }
                set { _TableName = value; }
            }

            private string _TableWhere;

            public string TableWhere
            {
                get { return _TableWhere; }
                set { _TableWhere = value; }
            }

            private List<string> _TableColumns = new List<string>();

            public List<string> TableColumns
            {
                get { return _TableColumns; }
                set { _TableColumns = value; }
            }

        }

        private List<SyntaxItem> FSyntaxItems = new List<SyntaxItem>();
        private List<AnalyzeReslut> FAnalyzeResluts = new List<AnalyzeReslut>();
        public List<SyntaxItem> SyntaxItems { get { return FSyntaxItems; } }
        public List<AnalyzeReslut> AnalyzeResluts { get { return FAnalyzeResluts; } }

        /// <summary>
        /// 进行语法分析
        /// </summary>
        /// <param name="ACode">所分析的代码</param>
        /// <returns>返回分析是否成功</returns>
        public virtual bool Analyze(string ACode)
        {
            if (FSyntaxItems.Count <= 0)
                return false;
            if (ACode == null)
                return false;
            AnalyzeResluts.Clear();
            string vCode = ACode;
            bool vFind = true;
            while (vFind && (vCode.Length > 0))
            {
                vFind = false;
                foreach (SyntaxItem vSyntaxItem in FSyntaxItems)
                {
                    if (Regex.IsMatch(vCode, vSyntaxItem.Pattern, vSyntaxItem.Options))
                    {
                        AnalyzeResluts.Add(new AnalyzeReslut(vSyntaxItem,
                            Regex.Match(vCode, vSyntaxItem.Pattern,
                            vSyntaxItem.Options).Value));
                        vCode = Regex.Replace(vCode, vSyntaxItem.Pattern, "",
                            vSyntaxItem.Options);
                        vFind = true;
                        break;
                    }
                }
            }
            return true;
        }
    }
        class TSqlEngine : SyntaxEngine
        {        
            public List<SyntaxEngine.AnalyzeResultSqlStruct> AnalyzeTSql(string TSqlCode)
            {
                List<AnalyzeResultSqlStruct> retSql = new List<AnalyzeResultSqlStruct>();

                if (this.Analyze(TSqlCode) == false) return null;
                List<AnalyzeReslut> ar = this.AnalyzeResluts;
                for (int i = 0; i < ar.Count; i++)
                {
                    if (ar[i].Item.Name == "关键字" && ar[i].Block == "select")
                    {
                        if (CheckSelectInSegment(ar, i) == true) continue;
                        for (int j = i; j < ar.Count; j++)
                        {
                            if (ar[j].Item.Name == "关键字" && ar[j].Block == "from")
                            {
                                if (CheckSelectIsLet(ar, i, j))
                                {
                                    i = j + 1;
                                    break;
                                }
                                int wordIndex = LetTableInfo(ref retSql, ar, i, j);
                                if (wordIndex >= j)
                                {
                                    i = wordIndex;
                                    break;
                                }
                            }
                        }
                    }
                }
                return retSql;
            }

            private int LetTableInfo(ref List<AnalyzeResultSqlStruct> retSql, List<AnalyzeReslut> aResult, int SelectIndex, int FromIndex)
            {
                AnalyzeResultSqlStruct sqlStu = new AnalyzeResultSqlStruct();
                int endIndex = FromIndex;
                for (int k = FromIndex + 1; k < aResult.Count; k++)
                {
                    if (aResult[k].Item.Name == "标识符" && string.IsNullOrEmpty(sqlStu.TableName) )
                    {
                        sqlStu.TableName = aResult[k].Block;
                    }
                    else if (aResult[k].Item.Name == "关键字")
                    {
                        if (aResult[k].Block.ToLower() == "where")
                        {
                            for (int i = k + 1; i < aResult.Count; i++)
                            {
                                if ((aResult[i].Item.Name == "关键字") && aResult[i].Block.ToLower() != "and" && aResult[i].Block != "group")
                                {
                                    endIndex = i - 1;
                                    break;
                                }
                                else
                                {
                                    sqlStu.TableWhere += aResult[i].Block;
                                }
                            }
                        }
                        else
                        {
                            endIndex = FromIndex + 1;
                        }
                    }

                    if (endIndex > FromIndex) break;
                }
                    string strCol = "";
                    for (int i = SelectIndex + 1; i <= FromIndex; i++)
                    {
                        if (i == FromIndex)
                        {
                            sqlStu.TableColumns.Add(strCol);
                            break;
                        }
                        if (aResult[i].Item.Name == "标点符号" && aResult[i].Block == ",")
                        {
                            sqlStu.TableColumns.Add(strCol);
                            strCol = "";
                        }
                        else
                        {
                            strCol += aResult[i].Block;
                        }
                }
                retSql.Add(sqlStu);
                return endIndex;
            }

            private bool CheckSelectIsLet(List<AnalyzeReslut> aResult, int SelectIndex, int FromIndex)
            {
                for (int i = SelectIndex; i < FromIndex; i++)
                {
                    if (aResult[i].Item.Name == "标点符号" && aResult[i].Block == "=")
                    {
                        return true;
                    }
                }
                return false;
            }

            private bool CheckSelectInSegment(List<AnalyzeReslut> aResult, int i)
            {
                return false;
            }

            public TSqlEngine()
            {
                SyntaxItems.Add(new SyntaxItem(@"^\s+", RegexOptions.None,
                    "空白", SyntaxItems.Count));
                SyntaxItems.Add(new SyntaxItem(@"^--[^\n]*[\n]?", RegexOptions.None,
                    "单行注释", SyntaxItems.Count));
                SyntaxItems.Add(new SyntaxItem(@"^\/\*.*?\*\/", RegexOptions.None,
                    "多行注释", SyntaxItems.Count));
                SyntaxItems.Add(new SyntaxItem(@"^(ABSOLUTE|ACTION|ADA|ADD|ADMIN|AFTER|AGGREGATE|ALIAS|ALL|ALLOCATE|ALTER|AND|ANY|ARE|ARRAY|AS|ASC|ASSERTION|AT|AUTHORIZATION|AVG|BACKUP|BEFORE|BEGIN|BETWEEN|BINARY|BIT|BIT_LENGTH|BLOB|BOOLEAN|BOTH|BREADTH|BREAK|BROWSE|BULK|BY|CALL|CASCADE|CASCADED|CASE|CAST|CATALOG|CHAR|CHAR_LENGTH|CHARACTER|CHARACTER_LENGTH|CHECK|CHECKPOINT|CLASS|CLOB|CLOSE|CLUSTERED|COALESCE|COLLATE|COLLATION|COLUMN|COMMIT|COMPLETION|COMPUTE|CONNECT|CONNECTION|CONSTRAINT|CONSTRAINTS|CONSTRUCTOR|CONTAINS|CONTAINSTABLE|CONTINUE|CONVERT|CORRESPONDING|COUNT|CREATE|CROSS|CUBE|CURRENT|CURRENT_DATE|CURRENT_PATH|CURRENT_ROLE|CURRENT_TIME|CURRENT_TIMESTAMP|CURRENT_USER|CURSOR|CYCLE|DATA|DATABASE|DATE|DAY|DBCC|DEALLOCATE|DEC|DECIMAL|DECLARE|DEFAULT|DEFERRABLE|DEFERRED|DELETE|DENY|DEPTH|DEREF|DESC|DESCRIBE|DESCRIPTOR|DESTROY|DESTRUCTOR|DETERMINISTIC|DIAGNOSTICS|DICTIONARY|ISCONNECT|DISK|DISTINCT|DISTRIBUTED|DOMAIN|DOUBLE|DROP|DUMMY|DUMP|DYNAMIC|EACH|ELSE|END|END-EXEC|EQUALS|ERRLVL|ESCAPE|EVERY|EXCEPT|EXCEPTION|EXEC|EXECUTE|EXISTS|EXIT|EXTERNAL|EXTRACT|FALSE|FETCH|FILE|FILLFACTOR|FIRST|FLOAT|FOR|FOREIGN|FORTRAN|FOUND|FREE|FREETEXT|FREETEXTTABLE|FROM|FULL|FULLTEXTTABLE|FUNCTION|GENERAL|GET|GLOBAL|GO|GOTO|GRANT|GROUP|GROUPING|HAVING|HOLDLOCK|HOST|HOUR|IDENTITY|IDENTITY_INSERT|IDENTITYCOL|IF|IGNORE|IMMEDIATE|IN|INCLUDE|INDEX|INDICATOR|INITIALIZE|INITIALLY|INNER|INOUT|INPUT|INSENSITIVE|INSERT|INT|INTEGER|INTERSECT|INTERVAL|INTO|IS|ISOLATION|ITERATE|JOIN|KEY|KILL|LANGUAGE|LARGE|LAST|LATERAL|LEADING|LEFT|LESS|LEVEL|LIKE|LIMIT|LINENO|LOAD|LOCAL|LOCALTIME|LOCALTIMESTAMP|LOCATOR|LOWER|MAP|MATCH|MAX|MIN|MINUTE|MODIFIES|MODIFY|MODULE|MONTH|NAMES|NATIONAL|NATURAL|NCHAR|NCLOB|W|NEXT|NO|NOCHECK|NONCLUSTERED|NONE|NOT|NULL|NULLIF|NUMERIC|OBJECT|OCTET_LENGTH|OF|OFF|OFFSETS|OLD|ON|ONLY|OPEN|OPENDATASOURCE|OPENQUERY|OPENROWSET|OPENXML|OPERATION|OPTION|OR|ORDER|ORDINALITY|OUT|OUTER|OUTPUT|OVER|OVERLAPS|PAD|PARAMETER|PARAMETERS|PARTIAL|PASCAL|PATH|PERCENT|PLAN|POSITION|POSTFIX|PRECISION|PREFIX|PREORDER|PREPARE|PRESERVE|PRIMARY|PRINT|PRIOR|PRIVILEGES|PROC|PROCEDURE|PUBLIC|RAISERROR|READ|READS|READTEXT|REAL|RECONFIGURE|RECURSIVE|REF|REFERENCES|REFERENCING|RELATIVE|REPLICATION|RESTORE|RESTRICT|RESULT|RETURN|RETURNS|REVOKE|RIGHT|ROLE|ROLLBACK|ROLLUP|ROUTINE|ROW|ROWCOUNT|ROWGUIDCOL|ROWS|RULE|SAVE|SAVEPOINT|SCHEMA|SCOPE|SCROLL|SEARCH|SECOND|SECTION|SELECT|SEQUENCE|SESSION|SESSION_USER|SET|SETS|SETUSER|SHUTDOWN|SIZE|SMALLINT|SOME|SPACE|SPECIFIC|SPECIFICTYPE|SQL|SQLCA|SQLCODE|SQLERROR|SQLEXCEPTION|SQLSTATE|SQLWARNING|START|STATE|STATEMENT|STATIC|STATISTICS|STRUCTURE|SUBSTRING|UM|SYSTEM_USER|TABLE|TEMPORARY|TERMINATE|TEXTSIZE|THAN|THEN|TIME|TIMESTAMP|TIMEZONE_HOUR|TIMEZONE_MINUTE|TO|TOP|TRAILING|TRAN|TRANSACTION|TRANSLATE|TRANSLATION|TREAT|TRIGGER|TRIM|TRUE|TRUNCATE|TSEQUAL|UNDER|UNION|UNIQUE|UNKNOWN|UNNEST|UPDATE|UPDATETEXT|UPPER|USAGE|USE|USER|USING|VALUE|VALUES|VARCHAR|VARIABLE|VARYING|VIEW|WAITFOR|WHEN|WHENEVER|WHERE|WHILE|WITH|WITHOUT|WORK|WRITE|WRITETEXT|YEAR|ZONE)\b",
                    RegexOptions.IgnoreCase, "关键字", SyntaxItems.Count));
                SyntaxItems.Add(new SyntaxItem(@"^(\+\=|\-\=|\&\&|\|\||\/\=|\&\=|\%\=|\~|\!|\+\+|\-\-|" +
                    @"\$|\%|\^|\&|\*|\(|\)|\+|\-|\=|\{|\}|\[|\]|\\|\;|\:|\<|\>|\?|\,|\.|\/)+",
                    RegexOptions.None, "标点符号", SyntaxItems.Count));
                SyntaxItems.Add(new SyntaxItem(@"^(\d+(?!\.|x|e|d|m)u?)|^0x([\da-f]+(?!\.|x|m)u?)",
                    RegexOptions.IgnoreCase, "整数", SyntaxItems.Count));
                SyntaxItems.Add(new SyntaxItem(@"^(\d+)?\.\d+((\+|\-)?e\d+)?(m|d|f)?|^\d+((\+|\-)?e\d+)?(m|d|f)",
                    RegexOptions.IgnoreCase, "浮点数", SyntaxItems.Count));
                SyntaxItems.Add(new SyntaxItem(@"^'(('')*([^'])*)*'?",
                    RegexOptions.None, "字符串", SyntaxItems.Count));
                SyntaxItems.Add(new SyntaxItem(@"^""([^""])*""|^\[([^\[^\]])*\]|^[^""^\[]\w*|^@@*\w+|^#\w+", RegexOptions.None,
                    "标识符", SyntaxItems.Count));
            }
        }
    /// <summary>
    /// C#语法分析引擎
    /// ZswangY37 wjhu111#21cn.com 2007-03-17 尊重作者，转贴请注明出处
    /// </summary>
    class CSharpEngine : SyntaxEngine
    {
        public CSharpEngine()
        {
            SyntaxItems.Add(new SyntaxItem(@"^\s+", RegexOptions.None,
                "空白", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^\/\/[^\n]*[\n]?", RegexOptions.None,
                "单行注释", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^\/\*.*?\*\/", RegexOptions.None,
                "多行注释", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^#\s*(define|elif|else|endif|endregion|" +
                @"error|if|line|pragma|region|undef|using|warning)\b[^\n]*[\n]?",
                RegexOptions.None, "指令", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^(abstract|event|new|struct|as|explicit|" +
                @"null|switch|base|extern|object|this|bool|false|operator|throw|break|" +
                @"finally|out|true|byte|fixed|override|try|case|float|params|typeof|" +
                @"catch|for|private|uint|char|foreach|protected|ulong|checked|goto|" +
                @"public|unchecked|class|if|readonly|unsafe|const|implicit|ref|ushort|" +
                @"continue|in|return|using|decimal|int|sbyte|virtual|default|interface|" +
                @"sealed|volatile|delegate|internal|short|void|do|is|sizeof|while|" +
                @"double|lock|stackalloc|else|long|static|enum|namespace|string)\b",
                RegexOptions.None, "关键字", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^(get|partial|set|value|where|yield)\b",
                RegexOptions.None, "上下文关键字", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^(\+\=|\-\=|\&\&|\|\||\/\=|\&\=|\%\=|\~|\!|\+\+|\-\-|" +
                @"\#|\$|\%|\^|\&|\*|\(|\)|\+|\-|\=|\{|\}|\[|\]|\\|\;|\:|\<|\>|\?|\,|\.|\/)+",
                RegexOptions.None, "标点符号", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^(\d+(?!\.|x|e|d|m)u?)|^0x([\da-f]+(?!\.|x|m)u?)",
                RegexOptions.IgnoreCase, "整数", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^(\d+)?\.\d+((\+|\-)?e\d+)?(m|d|f)?|^\d+((\+|\-)?e\d+)?(m|d|f)",
                RegexOptions.IgnoreCase, "浮点数", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^@""(("""")*([^""])*)*""|^""((\\\\)*(\\"")*(\\[a-z])*[^""^\\]*)*""",
                RegexOptions.None, "字符串", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^\'(\\\')*[^\']*\'", RegexOptions.None,
                "字符", SyntaxItems.Count));
            SyntaxItems.Add(new SyntaxItem(@"^\w*", RegexOptions.None,
                "标识符", SyntaxItems.Count));
        }


        /// <summary>
        /// 语法高亮引擎
        /// ZswangY37 wjhu111#21cn.com 2007-03-17 尊重作者，转贴请注明出处
        /// </summary>
        class SyntaxHighlight
        {
            public class HighlightItem
            {
                private Color FForeColor; // 前景色
                private bool FBold; // 是否加粗
                private bool FItalic; // 是否斜体
                private bool FUnderline; // 是否下划线
                public Color ForeColor { get { return FForeColor; } } // 前景色
                public bool Bold { get { return FBold; } } // 是否加粗
                public bool Italic { get { return FItalic; } } // 是否斜体
                public bool Underline { get { return FUnderline; } } // 是否下划线
                public HighlightItem(Color AForeColor, bool ABold, bool AItalic, bool AUnderline)
                {
                    FForeColor = AForeColor;
                    FBold = ABold;
                    FItalic = AItalic;
                    FUnderline = AUnderline;
                }
            }
            private List<SyntaxEngine.AnalyzeReslut> FAnalyzeResluts;
            private Font FDefaultFont;
            private List<HighlightItem> FHighlightItems = new List<HighlightItem>();
            public List<HighlightItem> HighlightItems { get { return FHighlightItems; } }
            public SyntaxHighlight(SyntaxEngine ASyntaxEngine, Font
                ADefaultFont)
            {
                FAnalyzeResluts = ASyntaxEngine.AnalyzeResluts;
                FDefaultFont = ADefaultFont;
            }
            /// <summary>
            /// 将文本中的RTF元素处理掉
            /// </summary>
            /// <param name="AText">输入的文本</param>
            /// <returns>返回处理后的RTF文本</returns>
            public string TextToRtf(string AText)
            {
                string Result = "";
                foreach (char vChar in AText)
                {
                    switch (vChar)
                    {
                        case '\\':
                            Result += @"\\";
                            break;
                        case '{':
                            Result += @"\{";
                            break;
                        case '}':
                            Result += @"\}";
                            break;
                        default:
                            if (vChar > (char)127)
                                Result += @"\u" + ((int)vChar).ToString() + "?";
                            else
                                Result += vChar;
                            break;
                    }
                }
                return Result;
            }
            [DllImport("user32.dll")]
            private static extern uint GetKBCodePage();
            [DllImport("kernel32.dll")]
            private static extern ushort GetSystemDefaultLangID();
            /// <summary>
            /// 将代码处理成RTF格式
            /// </summary>
            /// <returns>返回处理后的RTF文本</returns>
            public string MakeRtf()
            {
                if (HighlightItems.Count <= 0)
                    return "";
                string Result = @"{\rtf1\ansi\ansicpg" + GetKBCodePage().ToString() +
                    @"\deff0\deflang1033\deflangfe" + GetSystemDefaultLangID().ToString() +
                    @"{\fonttbl{\f0\fmodern " +
                    FDefaultFont.Name + ";}}\r\n";
                Result += @"{\colortbl ;";
                foreach (HighlightItem vHighlightItem in HighlightItems)
                    Result += string.Format(@"\red{0}\green{1}\blue{2};",
                        vHighlightItem.ForeColor.R, vHighlightItem.ForeColor.G,
                        vHighlightItem.ForeColor.B);
                Result += "}\r\n";
                Result += @"\viewkind4\uc1\pard\f0\fs20" + "\r\n";
                bool vBold = false, vItalic = false, vUnderline = false;
                foreach (SyntaxEngine.AnalyzeReslut vAnalyzeReslut in
                  FAnalyzeResluts)
                {
                    int i = vAnalyzeReslut.Item.Index;
                    if (i >= HighlightItems.Count)
                        i = 0;
                    if (vBold != HighlightItems[i].Bold)
                    {
                        if (HighlightItems[i].Bold)
                            Result += @"\b1";
                        else
                            Result += @"\b0";
                    }
                    if (vItalic != HighlightItems[i].Italic)
                    {
                        if (HighlightItems[i].Italic)
                            Result += @"\i1";
                        else
                            Result += @"\i0";
                    }
                    if (vItalic != HighlightItems[i].Underline)
                    {
                        if (HighlightItems[i].Underline)
                            Result += @"\ul1";
                        else
                            Result += @"\ul0";
                    }
                    Result += string.Format(@"\cf{0} ", i + 1);
                    vBold = HighlightItems[i].Bold;
                    vItalic = HighlightItems[i].Italic;
                    vUnderline = HighlightItems[i].Underline;
                    Result += TextToRtf(vAnalyzeReslut.Block).Replace("\r\n",
                        "\r\n" + @"\par");
                }
                return Result + "}";
            }
            /// <summary>
            /// 将文本中的HTML元素处理掉
            /// </summary>
            /// <param name="AText">输入的文本</param>
            /// <returns>返回处理后的HTML文本</returns>
            private string TextToHtml(string AText)
            {
                string Result = "";
                foreach (char vChar in AText)
                {
                    switch (vChar)
                    {
                        case '&':
                            Result += @"&amp;";
                            break;
                        case ' ':
                            Result += @"&nbsp;";
                            break;
                        case '<':
                            Result += @"&lt;";
                            break;
                        case '>':
                            Result += @"&gt;";
                            break;
                        case '"':
                            Result += @"&quot;";
                            break;
                        //case '\n':
                        //    Result += @"<br>";
                        //    break;
                        default:
                            if (vChar > (char)127)
                                Result += @"&#" + ((int)vChar).ToString() + ";";
                            else
                                Result += vChar;
                            break;
                    }
                }
                return Result;
            }
            /// <summary>
            /// 将颜色处理为HTML表达的方式
            /// </summary>
            /// <param name="AColor">输入的颜色</param>
            /// <returns>返回HTML颜色表达式</returns>
            private string ColorToHtml(Color AColor)
            {
                return string.Format("#{0:X2}{1:X2}{2:X2}", AColor.R, AColor.G, AColor.B);
            }
            /// <summary>
            /// 将代码处理为HTML文本
            /// </summary>
            /// <returns>返回处理后的HTML文本</returns>
            public string MakeHtml()
            {
                string Result = @"<code><pre style=""font-size:" + FDefaultFont.Size +
                    @"pt;font-family:" + FDefaultFont.Name + @""">";
                foreach (SyntaxEngine.AnalyzeReslut vAnalyzeReslut in
                  FAnalyzeResluts)
                {
                    int i = vAnalyzeReslut.Item.Index;
                    if (i >= HighlightItems.Count)
                        i = 0;
                    string vLeft = string.Format(@"<span style=""color={0}"">",
                        ColorToHtml(HighlightItems[i].ForeColor));
                    string vRight = "</span>";
                    if (HighlightItems[i].Bold)
                    {
                        vLeft += "<b>";
                        vRight = "</b>" + vRight;
                    }
                    if (HighlightItems[i].Italic)
                    {
                        vLeft += "<i>";
                        vRight = "</i>" + vRight;
                    }
                    if (HighlightItems[i].Underline)
                    {
                        vLeft += "<u>";
                        vRight = "</u>" + vRight;
                    }
                    Result += vLeft + TextToHtml(vAnalyzeReslut.Block) + vRight;
                }
                return Result + "</pre></code>";
            }
        }
        /// <summary>
        /// C#语法高亮引擎
        /// </summary>
        class CSharpHighlight : SyntaxHighlight
        {
            public CSharpHighlight(SyntaxEngine ASyntaxEngine, Font
                ADefaultFont)
                : base(ASyntaxEngine, ADefaultFont)
            {
                //空白
                HighlightItems.Add(new HighlightItem(Color.White, false, false, false));
                //单行注释
                HighlightItems.Add(new HighlightItem(Color.Green, false, false, false));
                //多行注释
                HighlightItems.Add(new HighlightItem(Color.Green, false, false, false));
                //指令
                HighlightItems.Add(new HighlightItem(Color.Blue, false, false, false));
                //关键字
                HighlightItems.Add(new HighlightItem(Color.Black, true, false, false));
                //上下文关键字
                HighlightItems.Add(new HighlightItem(Color.Black, true, false, false));
                //标点符号
                HighlightItems.Add(new HighlightItem(Color.BlueViolet, false, false, false));
                //整数
                HighlightItems.Add(new HighlightItem(Color.Red, true, false, false));
                //浮点数
                HighlightItems.Add(new HighlightItem(Color.Red, true, false, false));
                //字符串
                HighlightItems.Add(new HighlightItem(Color.Maroon, false, false, false));
                //字符
                HighlightItems.Add(new HighlightItem(Color.Maroon, false, false, false));
                //标识符
                HighlightItems.Add(new HighlightItem(Color.Black, false, false, false));
            }
        }
    }
}

测试程序:

        static void Main()
        {
            string strIn = @"select id,con from t where id=1";
            SyntaxEngineClass.TSqlEngine s = new SyntaxEngineClass.TSqlEngine();
            List<SyntaxEngineClass.TSqlEngine.AnalyzeResultSqlStruct> retSql = s.AnalyzeTSql(strIn) ;
            foreach (SyntaxEngineClass.SyntaxEngine.AnalyzeResultSqlStruct var in retSql)
            {
                    Console.WriteLine(var.TableName);
                    Console.WriteLine("TableWhere" + var.TableWhere);

                for (int i = 0; i < var.TableColumns.Count; i++)
                {
                    Console.WriteLine(var.TableColumns[i]);

                }
            }
        }

相关的 正则表达式文章:http://blog.csdn.net/bineon/archive/2004/07/30/56611.aspx

Sql 2005 的正则表达式用法: http://www.chenjiliang.com/Article/View.aspx?ArticleID=4247&TypeID=60
这样一来,分析方法就复杂了.