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 += @"&";
break;
case ' ':
Result += @" ";
break;
case '<':
Result += @"<";
break;
case '>':
Result += @">";
break;
case '"':
Result += @""";
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]);
}
}
}
{
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.
