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'======================================
'代码高亮类
'使用方法:
'Set HL = New Highlight '定义类
'HL.Language = "vb" '指定程序语言,支持 VBS ,JS ,XML, HTML, SQL, C#, Java...等
'还可通过直接设置下列属性还设置相关关键字等
' Public Keywords '关键字
' Public Objects '对象
' Public SplitWords '分隔符
' Public LineComment '行注释
' Public CommentOn '多行注释
' Public CommentOff '多行注释结束
' Public Ignore '是否区分大小写
' Public CodeContent '代码内容
' Public Tags '标记
' Public StrOn '字符串标记
' Public Escape '字符串界定符转义
' Public IsMultiple '允许多行引用
'HL.CodeContent = "要高亮的代码内容"
'Response.Write(Hl.Execute) '该方法返回高亮后的代码
'=====================================
Class Highlight
Public Keywords '关键字
Public Objects '对象
Public SplitWords '分隔符
Public LineComment '行注释
Public CommentOn '多行注释
Public CommentOff '多行注释结束
Public Ignore '是否区分大小写
Public CodeContent '代码内容
Public Tags '标记
Public StrOn '字符串标记
Public Escape '字符串界定符转义
Public IsMultiple '允许多行引用
Private Content
Private Sub Class_Initialize
Keywords = "function,void,this,boolean,while,if,return,new,true,false,try,catch,throw,null,else,int,long,do,var" '关键字
Objects = "src,width,border,cellspacing,cellpadding,align,bgcolor,class,style,href,type,name,String,Number,Boolean,RegExp,Error,Math,Date" '对象
SplitWords = " ,.?!;:\/<>(){}[]""'=+-|*%@#$^&"&VBCRLF&CHR(9) '分隔符
LineComment = "//" '行注释
CommentOn = "/*" '多行注释
CommentOff = "*/" '多行注释结束
Ignore = 0 '是否区分大小写
Tags = "a,img,html,head,body,title,style,script,language,input,select,div,span,button,img,iframe,frame,frameset,table,tr,td,caption,form,font,meta,textarea" '标记
StrOn = """'" '字符串标记
Escape = "\" '字符串界定符转义
CodeContent = ""
End Sub
Public Function Execute
Dim S
Dim T, Key, X, Str
Dim Flag
Flag = 1: S = 1
For i = 1 to Len(CodeContent)
If Instr(1, SplitWords, Mid(CodeContent, i, 1) , 0)>0 Then
If Flag = 1 Then
Key = Mid(Codecontent, S, i - S)
If Keywords<>"" And Instr(1, ","& Keywords &"," , ","&Key&"," , Ignore)>0 Then
Content = Content& "<font color=""blue"">"&Key&"</font>"
ElseIf Objects<>"" And Instr(1,","& Objects &",", ","&Key&"," , Ignore)>0 Then
Content = Content & "<font color=""red"">"&Key&"</font>"
ElseIf Tags <>"" And Instr(1, ","& Tags &",", ","&Key&"," , Ignore)>0 Then
Content = Content & "<font color=""#996600"">"&Key&"</font>"
Else
Content = Content & Key
End If
End if
Flag = 0
X = Mid(CodeContent, i, 1)
If LineComment<>"" And Mid(CodeContent, i, Len(LineComment)) = LineComment Then
S = Instr(i ,CodeContent, VBCRLF)
if S = 0 Then
S = Len(CodeContent)
End if
Content = Content & "<font color=""Green"">"& HtmlEnCode(Mid(CodeContent,i ,S - i ))&"</font>"
i = S
ElseIf StrOn<>"" And Instr(StrOn,Mid(CodeContent, i, 1))>0 Then
Str = Mid(CodeContent, i, 1)
S = i
Do
S = Instr(S + 1 ,CodeContent, Str, 1)
if S <> 0 Then
T = S - 1
Do While Mid(CodeContent, T, 1) = Escape
T = T-1
Loop
If (S -T) Mod 2 = 1 Then
Exit Do
End If
Else
S = Len(CodeContent)
Exit Do
End If
Loop While 1
Content = Content & "<font color=""#FF00FF"">"& HtmlEnCode(Mid(CodeContent,i, S - i + 1))&"</font>"
i = S
ElseIf CommentOn<>"" And Mid(CodeContent, i, Len(CommentOn)) = CommentOn Then
S = Instr(i ,CodeContent, CommentOff, 1)
if S = 0 Then
S = Len(CodeContent)
End if
Content = Content & "<font color=""Green"">"& HtmlEnCode(Mid(CodeContent,i, S - i + Len(CommentOff) ))&"</font>"
i = S + Len(CommentOff)
ElseIf X = "" Then
Content = Content & " "
ElseIf X = """" Then
Content = Content & """
ElseIf X = "&" Then
Content = Content & "&"
ElseIf X = "<" Then
Content = Content & "<"
ElseIf X = ">" Then
Content = Content & ">"
ElseIf X = Chr(9) Then
Content = Content & " "
ElseIf X = VBLF Then
Content = Content & "<br />"
Else
Content = Content & X
End If
Else
If Flag = 0 Then
S = i
Flag = 1
End if
End If
Next
if Flag = 1 Then
Execute = Content & Mid(CodeContent, S)
Else
Execute = content
End If
End Function